Multi-function rotary dial system including timer setting feature

Multi-function rotary dial system including timer setting feature
United States Patent [191
Wakahara et a1.
[11]
[45]
[54] MULTI-FUNCI‘ION ROTARY DIAL SYSTEM
4,549,173 10/1985
INCLUDING TIMER SETTING FEATURE
Patent Number:
Date of Patent:
4,786,982
Nov. 22, 1988
Nakamura ......................... .. 340/726
FOREIGN PATENT DOCUMENTS
[75] Inventors: Tatsuya Wakahara, Tokyo; Shinya
Fukushima, Saitama; Hisayuki
Akiguchi, Tokyo; Toshizumi Ando,
Kanagawa; Masanori Arimitsu;
0002434
0109182
9/1978 European Pat. Off. .
5/1984 European Pat. Off. .
2491707 10/1981
2512571 9/1982
Kiyoshi Takagaki, both of Tokyo,
W08l037l3 12/1981
France .
France .
PCT lnt’l Appl. .
Japan
[73] Assignee: Sony Corporation, Tokyo, Japan
[21] Appl.No.: 812,807
Primary Examiner-Alan Faber
[22] Filed:
Attorney, Agent, or Firm-Ronald P. Kananen
[30]
Dec. 23, 1985
[5 7]
Foreign Application Priority Data
Dec. 28, 1984 [JP]
Dec. 28, 1984 [JP]
Japan .............................. .. 59-275617
Japan .............................. .. 59-275623
[51]
Int. Cl.‘ ........................................... .. H04N 5/783
[52]
US. Cl. ................................ .. 360/ 10.3; 360/33.1;
[58]
Field of Search .......... .. 369/7, 6; 358/335, 191.1;
360/71; 360/73; 358/335
360/331, 10.1, 14.1, 61, 10.3, 71, 73; 455/181,
186, 185, 179; 361/340; 200/33 R, 61.58 R
References Cited
[56]
U.S. PATENT DOCUMENTS
4,045,777
4,081,754
8/1977
3/1978
4,206,483
6/ 1980 Nakamura
Mierzwinski et a1. ............ .. 340/168
Jackson .............. ..
455/185
4,270,117
5/1981 Ziegelbeim ..
4,325,081
4/1982
4,352,010
9/1982 Koogler
. ..
360/33.1
455/185
Abe ................ ..
OTHER PUBLICATIONS
Patent Abstracts of Japan re: JP 57-85101.
358/335
.. 455/185
4,404,531
9/1983
Genich .
455/185
4,428,005
1/1984
Kubo .......... ..
360/103
4,527,204
7/1985
Kozakai et a1. ..
.. 360/33.l
4,538,188
8/1985
Barker ............ ..
.. 360/331
4,539,603
9/1985
Takeuchi ..
4,539,711
9/1985
Harger .............................. .. 455/166
ABSTRACT
In a multi-function video tape recorder system, a manu- .
ally operable rotary dial can be used in place of a large
number of dedicated manual switches, and so forth to
make selections from multiple-choice lists and to assign
numerical values for timing, and so forth. The rotary
dial is journalled on a fold-down section of the video
tape recorder’s front console and its manually-actuated
rotation is monitored by optical sensors. A micro
processor receives the output of the sensors and so can
derive the angular position and speed and direction of
rotation of the rotary dial, which may all serve as input
parameters. In addition, a ring may be included in the
rotary dial assembly, the ring being pivotably slightly
relative to the rotary dial itself to provide an addition
dimension of information input. The rotary dial can be
used to input date and time information for both clock
setting and timer setting operations, to select a televi
sion channel for recording or direct reception, to select
the speed and mode of video playback and/or to control
the rate and direction of frame advance.
360/14.1
, 54 Claims, 8 Drawing Sheets
1.02
IOB I00
IOC I05
IOF
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US. Patent
Nov. 22, 1988
Sheet 2 0f8
4,786,982
5/EM l“!29
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US. Patent
Nov. 22, 1988
Sheet 3 of 8
4,786,982
US. Patent
Nov. 22, 1988
FIG. 7
Sheet 4 of 8
4,786,982
US. Patent
Nov. 22, 1988
Sheet 5 of 8
FI(3.10
4,786,982
FIG’. 11
FIG. 12
DISPLAY DRIVE
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US. Patent
Nov. 22,' 1988
Sheet 6 of 8
4,786,982
FIG.13
I026
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RESET
CLOCK
SET
MODE
TIMER
SET
MODE
SHUTTLE
MODE
JOG
MODE
\CHANNEL
SET
MODE
US. Patent
Nov. 22, 1988
Sheet 7 of 8
4,786,982
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US. Patent
Nov. 22, 1988
Sheet 8 of 8
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4,786,982
MULTI-FUNCTION ROTARY DIAL SYSTEM
INCLUDING TIMER SETTING FEATURE
BACKGROUND OF THE INVENTION
The present invention relates generally to a multi
function rotary dial which can perform a variety of
functions including timer setting. More speci?cally, the
invention relates to a rotary dial which is applicable to
video tape recorders (VTR) and so forth and designed
to allow timer setting for timer-activated recording, and
other functions.
Recent VTRs have various operational functions
2
responsive to the rotary dial speed signal to adjust the
advance and retard rate of the week, date and time
value and so allow the desired recording of week, day,
and start and end times to be set conveniently.
According to one aspect of the invention, a rotary
dial assembly for a VTR system capable of recording
and reproducing VTR signals, performing picture
search, and performing timer activated recording, com
prises a dial manually rotatable at a desired speed in
opposing ?rst and second directions, a ?rst sensing
means for monitoring magnitude of angular displace
such as forward and/or reverse speed reproduction, still
ment of the dial and producing a rotation angle indica
tive signal, a timer set mode switch manually operable
to produce a timer set mode selector signal ordering the
reproduction, variable speed reproduction, and timer
VTR system to operate in a timer set mode, a display
activated automatic recording, in addition to normal
recording and reproducing functions. In order to allow
manual operation or selection of the desired operation,
VTRs are provided with a plurality of operation
switches which are generally arranged on the front side
of the VTR sets. These switch arrangements become
for displaying at least symbols representing a timer
activated recording start timing and end timing, and a
controller responsive to the time set mode selector sig
nal for changing the value represented by each of the
more complicated as the number of functions built into
the VTRs increases. This makes it dif?cult to arrange
symbols at a given rate on the display, the given rate
being selected on the basis of the values of the direction
indicative signal and the rotating angle indicative signal.
The rotary dial assembly further comprises a second
and operate the switches.
sensing means for monitoring the rotation speed of the
For manually setting the time, conventional VTRs 25 dial and producing a rotation speed indicative signal,
are provided with a timer set key for entry into timer-set
and the controller is responsive to the rotation speed
mode, an up key and a down key for advancing and
indicative signal to adjust the given rate based thereon.
retarding week, date and time values so as to select
On the other hand, the rotary dial assembly futher
desired start and end times, a NEXT key for selecting
comprises means for triggering a picture search mode
the next item to be set, and a timer-record ON/OFF
and producing a command for entry into the picture
key. This conventional arrangement is not satisfactorily
search mode, and the controller is responsive to the
convenient for timer setting because of rather compli
comman to perform forward and reverse playback se
cated manual operations required. In order to simplify
lectively and at a given speed according to rotation of
the timer setting operation, some conventional VTR
the dial. The VTR system includes a pause switch for
sets employs ten-key pads as a replacement for the up/
temporarily stopping playback so as to freeze an image
down keys. Although these ten-key arrangements are
on a TV monitor, the pause switch serving as the pic
convenient for setting timers, they tend to make the
ture search triggering means.
key-board arrangement more complicated and dif?cult
The rotary dial assembly further comprises means for
to arrange.
triggering a picture search mode and producing a com
SUMMARY OF THE INVENTION
In view of the drawbacks in the prior art, it is a princi
ple object of the present invention to provide a rotary
dial which simpli?es the arrangement of the switches on
the front side of the VTR set and simpli?es manual 45
mand for entry into the picture search mode, a ring
rotatable independently of the dial and a fourth sensing
means monitoring the angular position of the ring and
producing a shuttle mode selector signal when angular
displacement of the ring is detected, and the controller
is responsive to the shuttle mode selector signal in the
presence of the command for selectively performing
operation thereof for timer setting.
Another object of the invention is to provide a rotary
forward and reverse playback at a variable playback
dial which allows not only timer setting but also other
speed
varying in accordance with the direction and
functions, such as manual playback, setting of variable
50 magnitude of angular displacement of the ring. The ?rst
playback speed and so forth.
and ?rst sensing means also cooperate with the ring for
In order to accomplish the above-mentioned and
monitoring angular displacement of the latter and pro
other objects, a rotary dial, according to the invention,
ducing the rotating direction indicative signal and the
is provided with an angle sensor capable of detecting
rotation angle indicative signal. The controller is also
angular variation of the rotary dial and producing a
responsive to rotation of the dial in the presence of the
rotary dial angle signal having a value representative of
command for performing forward and reverse playback
the angular position of the rotary dial. The angle sensor
selectively at a given speed according to rotation of the
is associated with a timer for advancing and retarding
dial.
set week, date and time values.
The VTR system also has a TV tuner for selecting a
In order to allow the rotary dial to perform a variety
of functions, the rotary dial is associated with one or
more mode selector switches allowing selection of de
sired functions, such as manual playback in which play
back speed can be proportional to revolution speed of
the rotary dial, or playback speed setting.
TV channel and in which the selected TV channel is
indicated on the display, further comprising means for
triggering a channel set mode for the VTR system for
selecting a TV channel, and the controller is responsive
to rotation of the dial in the channel set mode to adjust
Preferably, the rotary dial is also associated with a 65 the channel selection according to angular displacement
of the dial. The controller adjusts the rate of change of
revolution speed sensor which produces a rotary dial
the TV channel in the channel set mode depending
speed signal having a value varying in accordance with
upon the rotation speed indicative signal value.
the revolution speed of the rotary dial. The timer is
3
4,786,982
4
FIG. 1 is a perspective view of a VTR deck in which
In the preferred construction, the rotary dial assem
the preferred embodiment of a rotary dial according to
the present invention is installed;
bly is mounted on a sub-panel associated with a front
panel of the VTR system, the sub-panel being hinged to
FIG. 2 is a front elevation of the VTR deck of FIG.
the front panel for movement between a ?rst position in
which the sub-panel is oriented vertically so as to ex
pose one side of the rotary dial assembly for manual
1;
~
FIG. 3 is an enlarged partial perspective view of the
major part of the VTR deck of FIG. 1;
FIG. 4 is an enlarged partial perspective view of
another major part of the VTR deck of FIG. 1;
operation and a second position in which the sub-panel
is oriented horizontally so as to expose the other side of
the rotary dial for manual operation. The ?rst mode
selector switch is disposed on the portion of the front
panel opposing the sub-panel when the latter is in its
FIG. 5 is an enlarged front elevation of a display on
the front panel of the VTR deck of FIG. 1;
FIG. 6 is an enlarged and exploded perspective view
vertical position, hidden thereby and accessible only
when the sub-panel is in the horizontal position. The
of the preferred embodiment of a rotary dial assembly
according to the present invention;
dial and the ring are associated with a common rotary
FIG. 7 is a cross-section through the assembled ro
plate with which the ?rst, second and third sensing
tary dial assembly;
means are associated for monitoring the direction, mag
FIG. 8 is a diagram of the interaction between a shut
nitude and speed of angular displacement thereof. The
tle ring in the rotary dial assembly and a rotary disc;
dial is further associated with a click mechanism provid
ing a detent action at every given angle of angular dia
placement, which given angle corresponds to one frame
of a video signal.
According to another aspect of the invention, a VTR
system comprises a signal processing system for pro
FIG. 9 is a diagram of a click mechanism of the rotary
dial assembly of FIG. 6;
FIG. 10 is a plan view of a reflector plate which is
composed of a plurality of re?ecting segments and a
plurality of non-re?ecting segments arranged alternat
cessing VTR signals for recording and reproducing,
ingly;
which signal processing system is associated with a
timer for timer-activated recording, the timer being
actuatable to select a recording start timing, recording
which is composed of a plurality of re?ecting segments
and a plurality of non-re?ecting segments arranged
FIG. 11 is a plan view of another re?ector plate
alternatingly;
end timing and a TV channel to be recorded, and a
FIG. 12 is a block diagram of the preferred embodi
ment of a control system associated with the preferred
embodiment of the rotary dial assembly according to
manually rotatable rotary dial system associated with
the timer to allow selection of the recording start tim
ing, recording end timing and TV channel by rotation
the invention;
thereof.
The signal processing system also allows a picture in
a playback-pause search state for locating a desired
image frame, and advances the image frame forward
FIG. 13 is a ?owchart of a input control program to
be executed by the preferred embodiment of the rotary
dial assembly;
FIGS. 14 and 15 show the relationships between
ouptputs of optical sensors for indicating the direction
and reverse at a given speed according to rotation of the
rotary dial system. The VTR system further comprises
a ring associated with the signal processing system and
rotatingly operable to perform a picture search at a
predetermined variable speed according to the direction
and magnitude of its rotation. The ring is connected to
the manually operable rotary dial system to form an
assembly and is operable independently of the manually
operable rotary dial system. The assembly is mounted
of rotation of a rotary dial in the preferred embodiment
of the rotary dial assembly;
FIG. 16 is a diagram of the variation of the pulse
duration according to rotation speed of the rotary dial;
FIG. 17 shows the display when serving as a tape
indicator, a TV-channel indicator, and a clock indica
45
on a sub-panel hinged to a front panel of the VTR sys
tem, the sub-panel having two surfaces at which at least
the rotary dial is accessible.
In accordance with a further aspect of the invention,
tOr;
FIG. 18 shows the display in a TIMER SET MODE;
and
FIG. 19 shows the relationships among outputs of
three optical sensors for distinguishing JOG MODE
operation from SHUTTLE mode operation.
a method of inputting information from a user to the 50
VTR system with a rotary dial input device, comprises
the steps of:
DESCRIPTION OF THE PREFERRED
EMBODIMENT
manually rotating the rotary dial at a rate, to an extent
and/or in a direction indicative of the desired infor
Referring now the the drawings, particularly to
FIGS. 1 to 5, the preferred embodiment of a rotary dial
mation;
monitoring rotation of the rotary dial; and
converting the direction, speed and/or extent of rota
55 200 is installed in a VTR deck 100. The VTR 100 has a
front panel 110 with an opening 111 through which a
VTR. tape cassette is inserted, which opening will be
tion of the rotary dial into an information form
hereafter referred to as a “cassette insert”. The cassette
readily employable by the VTR system.
insert 111 establishes communication between the exte
rior of the deck and a cassette compartment within the
deck and is normally closed by a lid 111a. Near the
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood more fully
from the detailed description given herebelow and from
the accompanying drawings of the preferred embodi
cassette insert 111, an eject button 106 is provided. The
eject button 106 is associated with a cassette eject mech
anism (not shown) in a per se well-known manner.
ment of the invention, which, however, should not be 65
On the front panel 110, a power switch button 10A,
taken to limit the invention to the speci?c embodiment
mode selector buttons, e.g. a rewinding button 105, a
but are for explanation and understanding only.
playback button 10¢, a fast-forward button 109, a stop
In the drawings:
button 105 and a pause button 10;: are provided. Such
5
4,786,982
mode selector buttons are associated with a VTR sys
tem housed in the deck 100 in a per se well-known
manner. A display 112 on the front panel 110 lies side
by-side with the cassette insert 111. The display 112
serves as a clock for displaying the time, and as a real
time counter for displaying recording time and/ or play
back time. The display 112 may also serve as a mode
indicator for indicating the current operation mode of
the VTR system, or as a channel indicator for a TV
tuner which is incorporated with the VTR system in a
per se well-know manner. The display 112 may also
serve as a timer-activated recording indicator which
turns on when timer-activated recording is ordered.
Although not clearly shown in the drawings, the
front panel 110 also has a record button for selecting a
recording mode. An input selector 105 (shown. in FIG.
4) is also provided on the front panel 110 below the
cassette insert 111. The input selector 105 is normally
hidden by means of a lid 114. The input selector 105
6
As shown in FIGS. 6 and 7, the rotary dial assembly
20 is rotatably mounted on a base 201 which is formed
integrally with the sub-panel 120. The base 201 de?nes
a rest 121 for receiving a dial disc 210 and other equip
ment forming part of the rotary dial 200 and the shuttle
ring 220. The base 201 is circular in plan view and has
a central bearing boss 202 which rotatably receives a
rotary shaft 211 formed on the dial disc 210. The rotary
shaft 211 is fixed to the dial disc 210 for rotation there
with and extends through a central opening 221a
formed through a rotary disc 221. The rotary disc 221 is
rotatable about the rotary shaft 211 and has a generally
heart-shaped cam hole 222. The cam hole 222 receives
an actuation pin 231 extending from a slide lever 230.
The slide lever 230 has an elongated hole 230a through
which the rotary shaft 211 passes. The elongated hole
230a extends along the longitudial axis of the slide lever
230 and has a transverse width greater than the diame
ter of the bearing boss 202 so as to allow sliding move
switches the video signal source between a TV tuner 20 ment across the base 201.
and others, such as other VTR systems, a PCM signal
reproducing apparatus and so forth.
A rotary dial assembly 20 is mounted on a sub-panel
120 installed on the front panel 110 to the side of the
display 112 opposite the cassette insert 111. The rotary 25
dial assembly 20 is designed to allow timer setting, man
The base 201 has three holes 204, 205 and 206 for
receiving optical sensors 21, 22 and 23 respectively. The
optical sensors 21, 22 and 23 monitor angular displace
ment of the rotary dial 200 and the shuttle ring, the
operation of which will be described later.
ual scanning and playback speed selection in the shown
The slide lever 230 has a section 23% slidably engag
ing a pair of guides 203 formed on the base 201. The
embodiment. Also, the rotary dial assembly may serve
guide 203 of the base 201 serves as a retainer for the
slide lever 230 and guides movement of the slide lever
VTR system is active. The sub-panel 120 is pivotably 30 along its own longitudinal axis. The slide lever 230 is
biased in a direction F0 by means of a bias spring 232.
connected to the front panel 110 at its lower edge and
The biasing force F0 exerted by the slide level 230 urges
movable between a vertical position at which the front
the pin 231 into the section 222a of the cam hole 222.
surface of the sub-panel 120 lies ?ush with the front
as a TV-channel selector while the TV turner in the
surface of the front panel as shown in FIG. 2, and a
The rotary disc 221 has a pair of vertical tabs 221b
horizontal position at which the sub-panel 120 extends
extending vertically from its periphery. The shuttle ring
110, which push button is located adjacent the sub-panel
the phantom lines. At this position, component F’ of the
120 and will be referred to hereafter as a “sub-panel
rotational torque applied to the shuttle ring 220 balances ‘
220 has pairs of extensions 220a engaging the strips 221b
horizontally from the front panel 110 as shown in FIGS.
for rotation with the rotary disc 221.
1 and 3. The sub-panel 120 is normally in the vertical
The slide lever 230 cooperates with the shuttle ring
position and locked by means of an appropriate locking
220 in such a manner that after the shuttle ring 220 is
mechanism. In order to unlock the lockig mechanism
and allow the sub-panel to move to the horizontal posi 40 rotated through an angle +01 as shown in FIG. 8, the
pin 231 is positioned in the cam hole 222 as shown by
tion, a push button 113 is provided on the front panel
the spring force F0 of the bias spring 232. Upon releas
open button”. Timer set operation buttons are disposed
on the portion of the front panel 110 normally con 45 ing the rotational torque applied to the shuttle ring, the
pin 231 is returned to the section 222a of the cam hole
cealed by the sub-panel 120. The timer set operation
buttons consist of a clock set button 10a, a timer set
mode selector button 10b, a timer recording ON/OFF
button 100, a next item selector button 10d, a clear but
ton 10e and an item-back button 10f The functions of
these timer set operation buttons will be described in
detail below.
As will be apparent from FIGS. 1 to 5, a rotary dial
200 is accessible in both of the vertical and horizontal
positions of the sub-panel 120. The rotary dial assembly
20 also has a shuttle ring 220. At the vertical position,
when the rotary dial 200 is rotated in a pause mode, it
allows the user to step to forward and backwards
222 by the spring force of the bias spring 232. Accord
ingly, the rotary disc 221 is rotated through the corre
sponding angle +01 and returned to the predetermined
initial angular position in response to release of the
rotational torque on the shuttle ring.
The rotary disc 221 is formed with through openings
224 and 225 which are located so as to be aligned with
the holes 204 and 205 of the base 205 when the rotary
disc is in the initial angular position.
The dial disc 210 has an annular extension 212 extend
ing from its periphery toward the base. The inner pe
riphery 2120 of the annular extension 212 is polygonal,
e.g. a dodecagon. The inner periphery 212a acts as a
through the tape at a speed proportional to the rotation
cam surface along which a cam roller 233 mounted on
speed of the rotary dial, which action will be hereafter
the pin 231 tracks. The cam roller 233 is resiliently
referred to as “manual scan”. At the horizontal position,
biased toward the cam surface 212a by the spring force
the rotary dial 200 can be rotated to adjust the timer
of the bias spring 232. This resilient contact between the
setting for timer-activated recording and the shuttle
cam roller 233 and the cam surface 212a serves to pro
ring can be rotated in the pause mode to allow playback
of the tape at a variable speed. In the preferred embodi 65 viding a detent action for dial disc 210 rotation.
The dial disc 210 also has a surface opposing the
ment, the playback speed, when played back upon the
optical sensors 21, 22 and 23, to which an annular reflec
control of the shuttle ring, is variable among one-?fth,
tor sheet or plate 213 adheres. The surface of the re?ec
normal- and double-speeds.
7
4,786,982
8
The display driv'e control circuit 5 is also connected
tor plate 213 opposing the optical sensors 21, 22 and 23
consists of a plurality of re?ecting segments 213a and a
plurality of non-re?ecting segments 213b, as shown in
FIG. 10. The re?ecting segments 213a and the non
to the controlling microprocessor 7 for controlling the
display 112. As shown in detail in FIG. 5, the display
112 includes a column 112a serving as the real-time
counter, a column 112b serving as the clock counter,
columns 112c and 112d for calender displays, a column
112s for designation of the week or weeks in which to
re?ecting segments 213b alternate along the periphery
of the re?ector plate 213. In the preferred embodiment,
the re?ecting and non-reflecting segments 213a and
perform timer-activated recording, which may display
213b are of identical shape and each covers 1/24 of the
“THIS WEEK", “NEXT WEEK”, or “AFTER
circumference of the re?ector plate 213.
Similarly, the rotary disc 221 has a surface opposing
the optical sensors 21, 22 and 23 to which an annular
NEXT” in the case of a VTR recorder which allows
timer-activated recording over a three-week period, a
non-re?ecting segments 226b, alternate along the pe
riphery of the re?ector plate 226.
and a column 112:‘ for indication of index scan. The
column 112f for indicating designation of timer
re?ector sheet or plate 226 adheres. The surface of the
activated recording “EVERY WEEK”0 at a set time
re?ector plate 226 opposing the optical sensors 21, 22
and day of the week and at a designated TV channel, a
and 23 consists with a plurality of re?ecting segments
column
112g for indication of the selected TV channel,
5
226a and a plurality of non-re?ecting segments 22617, as
a column 112k for indication of stereo reproduction,
shown in FIG. 11. The re?ecting segments 213a and the
columns 112b and 112d are associated with each other
to display day of the week and clock time during all
normal operations of the VTR system except for
TIMER SET MODE. The display 112 may also include
a column 112j for indication of the recording tape type,
e.g. ,BI, BIL ,BIII as indicated in phantom line in FIG. 5.
Also, the display 112 may have a column 112k for indi
Each of the optical sensors 21, 22 and 23 comprises a
photo-interrupter having a light-emitting diode and a
photo-transistor. The optical sensors 21 and 22 monitor
angular variation of the dial disc 210 and produce ?rst
and second sensor signals which have signal phases
offset from one another by 90°. The optical sensor 23 25 cating a presence or absence of a VTR tape cassette as
illustrated in phantom line in FIG. 5. In a TIMER SET
monitors angular variation of the rotary disc 221 and
thus monitors angular variation of the shuttle ring 220.
As shown in FIG. 12, the optical sensors 21, 22 and 23
MODE, the column 112a accompanies the column 112s
are connected to a dial-encoding microprocessor 8. The
activated recording. Similarly, the column 112b cooper
and serves as an indicator for the start time of the timer
dial-encoding microprocessor 8 is associated with a
controlling microprocessor 7. The controlling micro
processor 7 is connnected to a display drive control
circuit 5, a tuner circuit 6, a signal processing circuit 4
and a motor servo circuit 3 which is, in turn, connected
to a reel motor 1 and a capstan motor 2. The controlling
microprocessor 7 is also connected to the manual opera
tion switches 10, such as the power switch 10,4, the
ates with the column 112d and serves as an indicator for
the recording end time when setting the timer.
As set out above, the rotary dial assembly performs
three functions, i.e. timer setting, manual scanning, and
adjustment of playback speed. In addition, the rotary
35 dial assembly allows TV channel selectio while the TV
mode selector switch 105, the playback button switch
10c, the fast-forward button switch 10D, the stop button
switch 101;, the pause button switch 10F, the clock set
button switch 10,,, the timer set rnode selector 101,, the
timer recording ON/OFF button switch 10¢, the next
item selector 10,11, the clear button switch 10¢ and the
item-back button switch 10f.
It should be appreciated that, although the shown 45
embodiment employs the dial-encoding microprocessor
for applying the outputs from the optical sensors 21, 22
and 23 to the controlling controller, it would be possible
to employ a waveform-shaping circuit or circuits for
producing rectangular wave pulses based on the optical
sensor outputs as a replacement for the dial-encoding
microprocessor.
The controlling microprocessor 7 controls the signal
processing circuit 4 which processes video signals and
tuner in the VTR system is active. In order to selec
tively perform the desired mode of operation, the pro
gram shown in FIG. 13 is executed by the controlling
microcomputer 7. As will be appreciated from FIG. 13,
the shown control program is executed cyclically at a
given timing even while the main power switch of the
VTR unit is OFF.
First, at a step 1002, the main power switch is
checked to see whether or not it is in the ON position.
If the main power switch is OFF, the controlling mi
crocomputer 7 is reset at a step 1004 and then control
returns to the step 1002.
On the other hand, if the main switch is ON when
checked at the step 1002, then the clock set switch 10,,
is checked at a step 1006. If the clock set switch 10,, has
been set to the ON position, the microcomputer allows
setting the clock according to rotational manipulation
of the rotary dial 20. In other words, at a step 1008,
CLOCK SET MODE is performed. On the other hand,
audio signals in a per se known manner in accordance 55 if the clock set switch 10,, is OFF, then the timer set
switch 101, is checked at a step 1010. If the timer set
with the desired recording and reproducing mode se
lected by means of the manual operation switches 10.
The controlling microprocessor 7 also controls the
well-known manner for recording of the desired TV
program or for sending video and audio signals to a TV
monitor for direct reproduction. The motor servo cir
switch 105, has been set to the ON position, the mi
crocomputer allows the timer to be set according to
rotational manipulation of the rotary dial 20. In other
words, at a step 1012, TIMER SET MODE is per
formed. On the other hand, if the timer set switch 101, is
OFF, then the playback button switch 10,, and the
cuit 3 is controlled by the controlling microprocessor 7
pause button switch 10c are checked at a step 1014. If
tuner circuit 6 which selects a TV channel in a per se
both of the playback button switch 10,; and the pause
forth. Although it is not clearly illustrated in the draw 65 button switch 104: are ON, which means that the VTR
unit is in playback-pause position, then the output of the
ings, the motor servo control circuit 3 may also control
to drive the reel motor 1, the capstan motor 2 and so
a servo system for a VTR cassette loading system, ejec
tion system and a rotary head drive.
optical sensor 23 is checked at a step 1016 to see
whether or not the shuttle ring 220 is being rotated. If
9
‘4,786,982
10
so, the process goes to a step 1018 to perform SHUT
TLE MODE. Otherwise, the process goes to a step
output of the optical sensor 22 will be HIGH at the
1020 to perform JOG MODE.
sensor 21, as shown in FIG. 14, and when the dial disc
leading edge of a HIGH-level pulse from the optical
On the other hand, if the playback-pause position is
210 is rotated counterclockwise, the signal level of the
not detected when checked at the step 1016, then the
record button switch (not shown) is checked at a step
1022. If the record button switch is ON and thus the
RECORD MODE operation of the VTR unit is de
output of the optical sensor 22 will be LOW at the
tected, the microcomputer is reset at the step 1004 and
control returns to the step 1002. Otherwise, the input
selector switch 105 is checked at a step 1024. If the TV
tuner has been selected by means of the input selector
switch 105, then CHANNEL SET MODE is per
formed at a step 1026. If the input selector switch 105 is
leading edge of HIGH-level’ pulses from the optical
sensor 21, as shown in FIG. 15. Therefore, the control
ling microcomputer 7 distingushes between directions
of rotation of the dial disc 210 by detecting the signal
phase of the optical sensor 22 at the timing of rising of
the output of the optical sensor 21. The controlling
microcomputer 7 also derives rotation speed of the dial
disc according to the pulsewidths, e.g. t1, t2, t3, t4, t5, t6
and t7 in FIG. 16. The controlling microcomputer 7
in its LINE/PCM MODE position, then control passes 15 compares the derived rotation speed of the dial disc 210
to the step 1004.
with a predetermined threshold and appropriately ad
Hereafter, the operation of the rotary dial assembly
justs the rate of change of the numbers on the display
20 in CLOCK SET MODE, TIMER SET MODE,
112. For example, in order to adjust the minutes value
SHUTTLE MODE, JOG MODE and CHANNEL
of the clock time, when the dial disc 210 is rotated at a
SET MODE will be described.
20 relatively low speed, the minutes value will change by
“l” with every given angle of dial rotation, and, on the
CLOCK SET MODE OPERATION
other hand, when the dial disc 210 is rotated at a rela
(Step 1008)
tively high speed, the minutes value will change by
more than “1”, e.g. by “2” with every given angle of
As shown in FIGS. 5 and 17, the clock time is dis
played in the columns 112b and 112d. When it becomes 25 dial rotation. This reduces the required angular change
needed to reach the desired number. This would be
necessary to set the clock, the power cord is ?rst
convenient when a relatively large adjustment is re
plugged into a wall outlet, whereupon a predetermined
quired. In addition, since the rate of change can be
clock time, e.g., “SU” and “AM 12:00” which means
adjusted automatically according to the rotation speed
12:00 AM Sunday, is displayed on the display 112. In
of the dial disc 210, it allows ?ne adjustment of the
order to correct the clock to the current clock time, the
push button 113 is depressed to move the rotary dial
number by slowing down the rotation speed after
assembly 20 to its horizotnal position and then the clock
coarse adjustment by way of high-speed rotation of the
set ‘switch 10,, is depressed to enter CLOCK SET
dial disc.
MODE.
TIMER SET MODE
After depressing the clock set switch 10“, ?rst, the
week indicator in the column 112d starts blinking. The
(Step 1012)
dial disc 210 can then be manually rotated to select the
day of the week. In this case, when the dial disc 210 is
As is well known, the TIMER SET MODE is per
formed in order to set up timer-activated recording, i.e.
example, the SU symbol may stop blinking while the 40 to set the record start time, record end time, day of the
week, TV channel to record and so forth. To set the
MO (Monday) symbol starts blinking. On the other
timer,
?rst, the push button 113 is depressed as for clock
hand, when the dial disc 210 is rotated counterclock
setting, to move the rotary dial assembly 20 to its hori
wise, the direction of advance is reversed. After the
zontal position. Thereafter, the timer set button 101, is
correct day of the week is selected, the next item selec
tor button 10,; is depressed. Then, the day indicator 45 depressed to enter the TIMER SET MODE.
It should be appreciated that, in the TIMER SET
stops blinking and the hour indicator in the column 112b
MODE operation, the columns 112a and 1120 of the
starts to blink. The dial disc 210 can again be rotated
display serve as a record start time indicator and the
either clockwise or counterclockwise to adjust the cur
rotated clockwise, a weekday indicator is advanced; for
rently selected hour symbol together with an indication
columns 112b and 112d serve as a record end time indi
of AM/PM. After the correct hour and correct 50 cator.
After depressing the timer set button, the controlling
AM/PM has been selected, the next item button 101 is
microcomputer 7 enters the TIMER SET MODE. In
again depressed. As a result, the hour indicator stops
response to this, the column 1122 indicative of the de
blinking and the minutes indicator in the column 112b
sired week at which the timer-activated recording is
starts blinking. The dial disc 210 can then be rotated
clockwise or counterclockwise to select the minutes 55 ordered starts blinking as shown in FIG. 18. Speci?
cally, one of the symbols “THIS WEEK”, “NEXT
symbol which correctly indicates the current time. By
depressing the next item selector button 10,; again, the
WEEK”, “AFTER NEXT" and “EVERY WEEK”
will be blinking. The blinking symbol is advanced for
CLOCK SET MODE ends and then the set clock time
ward or backward according to rotation of the dial disc
is indicated on the columns 112b and 112d of the display
60 210. After selecting the desired week, the next item
112.
selector button 10d is depressed. Then, the column 1126
Also as set out above, since the output phases of the
indicating the day of the week starts blinking as in the
optical sensors 21 and 22 differ by 90°, the direction of
CLOCK SET MODE. The day of the week and the
rotation of the dial disc 210 can be sensed by checking
record start time can be selected in substantially the
the signal phase of the optical sensor 22 at the leading
edge of each HIGH-level output from the optical sensor 65 same manner as when setting the clock as explained
above.
21. In the preferred embodiment, the optical sensors 21
After setting the record start time, in response to
and 22 are arranged in such a manner that, when the dial
depression of the next item selector button 10,1, the hour
disc 210 is rotated clockwise, the signal phase of the
11
4,786,982
symbol in the column 112/) starts blinking. As in the
CLOCK SET MODE, the hour symbol and minutes
12
ring 220 is rotated clockwise or counterclockwise out of
the given angular range, the output of the optical sensor
symbol in the column 112b may be selected to set the
23 goes HIGH. At the same time, according to rotation
of the rotary disc 221, the optical sensors 21 and 22
record end time. Upon depressing the next item selector
button 10d after setting the minutes value in column
112b, a TV channel symbol in column 112g starts blink
outputs pulses with 90° of mutual phase-shift. As shown
in FIG. 19, the relationships between the pulses of the
optical sensors 21 and 22 determining playback speed in
the presence of a HIGH-level output from the optical
sensor 23 are represented by the angular positions 03,
92, 91 and 00 of FIG. 19. In the shown embodiment,
ing. By rotating the dial disc 210, the number displayed
in the column 112g is advanced or retarded according to
the direction and magnitude of rotation of the dial disc
210. As described previously, the rate of change of the
number is adjusted depending upon the rotation speed
playback speed, the rotary disc angular position and
of the dial disc. When the number of the desired TV
channel is obtained on the column 112g, the next item
phases of the outputs of the optical sensors 21 and 22 are
so arranged as shown in the following table 1:
selector button 10,; is depressed. Then, TIMER SET
TABLE
MODE ends.
15
In order to perform timer-activated recording, the
timer recording ON/OFF button switch 106 is de
pressed subsequent to selection of the record start time,
record end time and TV channel to be recorded in
TIMER SET MODE. The controlling microcomputer
Angle
03
62
01
0O
21 Output
22 Output
Playback Sp.
LOW
LOW
1/5
HIGH
LOW
V1
LOW
HIGH
2/ l
HIGH
HIGH
CUE REV
20
7 then enters timer-activated recording mode. In VTR
systems now on the market, upon entry into the timer
activated recording mode, the main power switch is
automatically turned OFF and the VTR system will not
JOG MODE
(Step 1020)
accept entry of inputs through manual switches except
As set forth above, when the shuttle ring 220 is not
manipulated and thus the rotary disc 221 is in the neu
tral angle range as shown in FIG. 11, the JOG MODE
for the timer recording ON/OFF switch 10c and an
other switch (not shown) used to con?rm the timer
setting. The timer record ON/OFF switch 106 then
is performed. In the JOG MODE, the playback speed
of the tape is adjusted depending upon the rotation
serves as a cancel switch allowing the user to cancel
timer-activated recording.
30 speed of the dial disc 210. As set out with respect to the
SHUTTLE MODE
(Step 1018)
SHUTTLE MODE can be performed in the play
back-pause position to cause the VTR tape to be played
back at one-?fth of normal speed, normal speed or at
double-speed. In the playback-pause position, the pic
ture on the TV monitor is frozen. By grasping and
rotating the shuttle ring 220 under these conditions, a
picture search or scanning can be performed at a vari
able speed depending upon the angular offset of the
shuttle ring. Also according to the direction of rotation
CLOCK SET MODE, the controlling microcomputer
distingushes between clockwise rotation and counter
clockwise rotation of the dial disc 210 depending on the
phases of the outputs of the optical sensors 21 and 22.
Also, the controlling microcomputer ‘7 controls play
back speed according to rotation of the dial disc 210
according to the following table 2, in which T repre
sents the pulse period of the sensor output such as is
shown in FIG. 16:
TABLE 2
T
21 Output
22 Output
scan can be performed selectively. According to the
preferred embodiment, by rotating or turning the shut 45 Playback Sp.
of the shuttle ring 220, a forward scan and a reverse
T>tltl>T>t2
HIGH LOW
HIGH HIGH
X2
Xl
t2>T>t3
t3>T
HIGH
LOW
SLOW
LOW
LOW
FIELD
tle ring 220 clockwise, the forward scan can be per
formed. On the other hand, by turning the shuttle ring
220 counterclockwise, the reverse scan can be per
formed.
The shuttle ring 220 can be turned or rotated clock
wise and counterclockwise through respective given
angles. According to the angular position of the rotary
disc 221 rotated according to rotation of the shuttle ring
220, a forward and a reverse variable-speed picture
search can be performed as set forth above. Also, rela
tively high-speed scanning (which is referred to as CUE
REV) can be performed by rotating the shuttle ring 220
to its limit.
The dial-encoding microcomputer 8 distingushes
between JOG MODE and SHUTTLE MODE accord 60
ing to the angular position of the rotary disc 221. Out
puts of the optical sensors 21, 22 and 23 are related as
The reference value t1 is shorter than t; which is
shorter than t3. When the dial disc is rotated at a speed
higher than a high-speed threshold represented by the
reference time t1, and thus the pulse duration of the
output of the optical sensor 21 is shorter than the refer
ence time t1, the playback speed will be set to twice the
normal playback speed. On the other hand, when frame
advance is desired, the dial disc 210 is rotated at a rela
tively low speed. As a result, the pulse duration T of the
optical sensor 21 becomes longer than the reference
time t3. Therefore, the controlling microcomputer 7
advances the image on the TV monitor frame-by-frame
with each given angle of dial disc rotation.
CHANNEL SET MODE
(Step 1026)
shown in FIG. 19. As will be appreciated herefrom,
The controlling microcomputer 7 is normally ready
J OG MODE is performed within a given angular range
of the neutral position of the rotary disc 221. That is to 65 for CHANNEL SET MODE unless one or more of the
other operation modes described above are ordered and
say, while the rotary disc 221 is within an angular range
is always ready when the input selector switch 105 is set
in which the output of the optical sensor 23 remains
low, SHUTTLE MODE is disabled. When the shuttle
to the TV tuner position.
13
4,786,982
14
4. The rotary dial assembly as set forth in claim 3, in
which said video tape recorder system includes a pause
switch for temporarily stopping playback so as to freeze
an image on a television monitor, said pause switch
serving as said picture search triggering means.
5. The rotary dial assembly as set forth in claim 1,
which further comprises means for triggering a picture
search mode and producing a command for entry into
In the CHANNEL SET MODE, the channel is se
lected in substantially the same manner as discussed
with respect to TIMER SET MODE. Therefore, it is
not necessary to explain the CHANNEL SET MODE
operation in detail.
As will be appreciated herefrom, according to the
present invention, since the rotary dial assembly can
perform various functions, the necessary switches or
push-buttons which would otherwise be arranged on
the front panel of the VTR deck can be eliminated,
which greatly simpli?es the console structure. This
increases the freedom of design for the switch arrange
the picture search mode, a ring rotatable independently
of said dial and a fourth sensing means monitoring the
angular position of said ring and producing a shuttle
mode selector signal when angular displacement of said
ring is detected, and said controller is responsive to said
ment. Also, application of this rotary dial assembly will
help reduce the size of the VTR deck. Furthermore,
shuttle mode selector signal in the presence of said
command for selectively performing forward and re
verse playback at a variable playback speed varying in
accordance with the direction and magnitude of angular
since the shown embodiment allows the advance and
retard rate of the number to be adjusted, timer set, clock
setting, and channel selection can be performed more
displacement of said ring.
conventiently. Also, by making the picture search speed
6. The rotary dial assembly as set forth in claim 5,
wherein said ?rst and second sensing means also coop
adjustable in accordance with the angular velocity or
position of the rotary dial or the shuttle ring, manual
adjustment of the playback speed is much easier than in
the prior art.
While the present invention has been disclosed in
detail in terms of the preferred embodiment of the in
erate with said ring for monitoring angular displace
ment of the latter and producing said rotating direction
indicative signal and said rotation angle indicative sig
nal.
7. The rotary dial assembly as set forth in claim 6,
vention in order to facilitate a better understanding of 25
wherein said controller is also responsive to rotation of
the invention, the invention may be embodied in various
said dial in the presence of said command for perform
ways without departing from the principles of the in
ing forward and reverse playback selectively at a given
vention as set out in the appended claims. Therefore,
speed according to rotation of said dial.
the invention should be understood to include all possi
ble embodiments and modi?cations of the invention 30 8. The rotary dial assembly as set forth in claim 5,
wherein said dial and said ring are associated with a
which do not depart from the principles set forth in the
common rotary plate with which said ?rst, second and
appended claims.
‘
second sensing means are associated for monitoring the
What is claimed is:
direction, magnitude and speed of angular displacement
1. A rotary dial assembly for a video tape recorder
system capable of recording and reproducing video
signals, performing a picture search, and performing
timer activated recording, comprising:
35
a dial manually rotatable at a desired speed in oppos
ing ?rst and second directions;
thereof.
9. The rotary dial as set forth in claim 8, wherein said
dial is further associated with a click mechanism provid
ing a detent action at every given angle of angular dis
placement, which given angle corresponds to one frame
a ?rst sensing means for monitoring magnitude of 40 of a video signal.
10. The rotary dial assembly as set forth in claim 1, in
angular displacement of said dial and producing a
which said video tape recorder system also has a televi
rotation angle indicative signal;
sion tuner for selecting a television channel and in
a timer set mode switch manually operable to pro
which the selected telvision channel is indicated on said
duce a timer set mode selector signal ordering said
video tape recorder system to operate in a timer set 45 display, further comprising means for triggering a chan
nel set mode for the video tape recorder system for
mode; p1 a display for displaying at least symbols
selecting a television channel, and said controller is
representing a time-activated recording start tim
responsive to rotation of said dial in said channel set
ing and end timing; and
mode to adjust the channel selection according to angu
a controller responsive to said timer set mode selector
lar displacement of said dial.
signal for changing the value represented by each
11. The rotary dial assembly as set forth in claim 10,
of said symbols to represent a value corresponding
which further comprises a second sensing means for
to the angular position of said dial, which angular
monitoring the rotation speed of said dial and producing
position is derived on the basis of the values of a
a rotation speed indicative signal, and said controller is
direction indicative signal and said rotation angle
55 responsive to said rotation speed indicative signal to
indicative signal.
adjust said given rate in accordance therewith.
2. The rotary dial assembly as set forth in claim 1,
12. The rotary dial assembly as set forth in claim 10,
which further comprises a second sensing means for
wherein said controller adjusts the rate of change of
monitoring the rotation speed of said dial and producing
said television channel in said channel set mode depend
a rotation speed indicative signal, and said controller is
responsive to said rotation speed indicative signal to
adjust said given rate based thereon.
3. The rotary dial assembly as set forth in claim 1,
which further comprises means for triggering a picture
search mode and producing a command for entry into
the picture search mode, and said controller is respon 65
sive to said command to perform forward and reverse
ing upon said rotation speed indicative signal value.
13. A rotary dial assembly for a video tape recorder
system capable of recording and reproducing video
signals, performing a picture search, and performing
timer activated recording, comprising:
a sub-panel associated with a front panel of said video
tape recorder system and mounting the rotary dial
playback selectively and at a given speed according to
assembly, said sub-panel being hinged to said front
rotation of said dial.
panel for movement between a ?rst position in
15
4,786,982
which said sub-panel is oriented vertically so as to
expose one side of said rotary dial assembly for
manual operation and a second position in which
said sub-panel is oriented horizontally so as to ex
pose the other side of said rotary dial for manual
operation;
16
sive to said command to perform forward and reverse
playback selectively and at a given speed according to
rotation of said dial.
18. The rotary dial assembly as set forth in claim 17,
in which said video tape recorder system includes a
pause switch for temporarily stopping playback so as to
a dial manually rotatable at a desired speed in oppos
freeze an image on a television monitor, said pause
ing ?rst and second directions;
a ?rst sensing means for monitoring magnitude of
angular displacement of said dial and producing a
switch serving as said picture search triggering means.
19. The rotary dial assembly as set forth in claim 15,
which further comprises means for triggering the pic
rotation angle indicative signal;
a timer set mode switch manually operable to pro
duce a timer set mode selector signal ordering said
video tape recorder system to operate in a timer set
mode;
'
a display for displaying at least symbols representing
a time-activated recording start timing and end
timing; and
a controller responsive to said timer set mode selector
signal for changing the value represented by each
of said symbols at a given rate on said display, said
given rate being selected on the bases of the values
of a direction indicative signal and said rotation
angle indicative signal.
14. The rotary dial assembly as set forth in claim 13,
wherein said mode switch is disposed on the portion of
said front panel opposing said sub-panel when the latter
is in its vertical position, hidden thereby and accessible
only when said sub-panel is in said horizontal position.
15. A rotary dial assembly for a video tape recorder
system capable of recording and reproducing video
signals, performing a picture search, and including a
television tuner for varying a television signal, compris
ing:
a dial manually rotatable at a desired speed in oppos
ing ?rst and second directions;
a ?rst sensing means for monitoring magnitude of
angular displacement of said dial and producing a
rotation angle indicative signal;
a channel set mode switch manually operable to pro 40
duce a ?rst mode selector signal ordering said
ture search mode and producing a command for entry
into the picture search mode, a ring rotatable indepen
dently of said dial and a fourth sensing means monitor
ing the angular position of said ring and producing a
shuttle mode selector signal when angular displacement
of said ring is detected, and said controller is responsive
to said shuttle mode selector signal in the presence of
said command for selectively performing forward and
reverse playback at a variable playback speed varying
in accordance with the direction and magnitude of an
gular displacement of said ring.
20. The rotary dial assembly as set forth in claim 19,
wherein said ?rst and second sensing means also coop
erate with said ring for monitoring angular displace
ment of the latter and producing said rotating direction
indicative signal and said rotation angle indicative sig
nal.
21. The rotary dial assembly as set forth in claim 20,
wherein said controller is also responsive to rotation of
said dial in the presence of said command for perform
ing forward and reverse playback selectively at a given
speed according to rotation of said dial.
22. The rotary dial assembly as set forth in claim 19,
wherein said dial and said ring are associated with a
common rotary plate with which said ?rst, second and
second sensing means are associated for monitoring the
direction, magnitude and speed of angular displacement
thereof.
23. The rotary dial as set forth in claim 22, wherein
said dial is further associated with a click mechanism
providing a detent action at every given angle of angu
lar displacement, which given angle corresponds to one
sion channel set mode;
frame of a video signal.
a display for displaying at least symbols representing
24. A rotary dial assembly for a video tape recorder
a time-activated recording start timing and end 45
video tape recorder system to operate in a televi
timing; and
a controller responsive to said rotation angle indica
tive signal for performing said picture search for
feeding ?elds of video signals in a forward and a
reverse direction according to a rotating direction
of said dial, a number of ?elds to feed depending
upon said rotation angle indicative signal value and
responsive to said ?rst set mode selector signal for
changing the value repesented by each of said sym
bols at a given rate on said display, said given rate 55
being selected on the basis of the values of a direc
system capable of recording and reproducing video
signals, performing a picture search, and including a
television tuner for varying a television channel, com
prising:
a sub-panel associated with a front panel of said video
tape recorder system and mounting the rotary dial
assembly, said sub~panel being hinged to said front
panel for movement between a ?rst position in
which said sub-panel is oriented vertically so as to
expose one side of said rotary dial assembly for
manual operation and a second position in which
tion indicative signal and said rotation angle indica
said sub-panel is oriented horizontally so as to ex
tive signal.
pose the other side of said rotary dial assembly for
16. The rotary dial assembly as set forth in claim 15,
which further comprises a second sensing means for 60
monitoring the rotation speed of said dial and producing
a. rotation speed indicative signal, and said controller is
responsive to said rotation speed indicative signal to
adjust said given rate based thereon.
17. The rotary dial assembly as set forth in claim 15, 65
which further comprises means for triggering a picture
search mode and producing a command for entry into
the picture search mode, and said controller is respon
manual operation;
a dial manually rotatable at a desired speed in oppos
ing first and second directions;
a ?rst sensing means for monitoring magnitude of
angular displacement of said dial and producing a
rotation angle indicative signal;
a channel set mode switch manually operable to pro
duce a ?rst mode selection signal ordering said
video tape recorder system to operate in a televi
sion channel set mode;
17
4,786,982
a display for displaying at least symbols representing
a time-activated recording start timing and end
timing; and
a controller responsive to said ?rst mode selector
18
a display for displaying at least symbols representing
a timer-activated recording start timing and end
timing; and
a controller responsive to said ?rst mode selector
signal for changing the value represented by each
signal for changing the value represented by each
of said symbols at a given rate on said display, said
given rate being selected on the bases of the values
of a direction indicative signal and said rotation
of said direction indicative signal and said rotating
angle indicative signal.
25. The rotary dial assembly as set forth in claim 24,
wherein said ?rst mode selector switch is disposed on
of said symbols at a given rate on said display, said
given rate being selected on the basis of the values
angle indicative signal.
32. The video tape recorder system as set forth in
claim 31, which further comprises a third sensing means
for monitoring the rotation speed of said dial and pro
ducing a rotation speed indicative signal, and said con
when the latter is in its vertical position, hidden thereby
troller is responsive to said rotation speed indicative
and accessible only when said sub-panel is in said hori
15 signal to adjust siad given rate based thereon.
zontal position.
33. The video tape recorder system as set forth in
26. A video tape recorder system comprising:
claim 31, which further comprises means for triggering
a signal processing system for processing video tape
a picture search mode and producing a command for
recorder signals for recording and reproducing,
entry into the picture search mode, and said controller
which signal processing system is associated with a 20 is responsive to said command to perform forward and
timer for time-activated recording;
reverse playback selectively and at a given speed ac
said timer being actuatable to select a recording start
cording to rotation of said dial.
timing, recording end timing and a television chan
34. The video tape recorder system as set forth in
nel to be recorded; and
claim 33, in which said video tape recorder system
a manually recordable rotary dial system associated
includes a pause switch for temporarily stopping play
with said timer to allow selection of said recording
back so as to freeze an image on a television monitor,
start timing, recording end timing and television
said pause switch serving as said picture search trigger
channel by rotation thereof, said rotary dial system
ing means.
the portion of said front panel opposing said sub-panel
being rotatable for varying values to be set as said
35. The video tape recorder system as set forth in
recording start timing, said recording end timing
claim 33, wherein said rotary dial assembly is mounted
and television channel according to rotational mag
nitude thereof.
video tape recorder system, said sub-panel being hinged
27. The video tape recorder system as set forth in
claim 26, wherein said signal processing system also
allows picture in a playback-pause search state for 10
cating a desired image frame, and advances said image
frame forward and reverse at a given speed according
to rotation of said rotary dial system.
28. The video tape recorder system as set forth in
claim 27, which further comprises a ring associated
with said signal processing system and rotatingly opera
ble to perform the picture search at a predetermined
variable speed according to the direction and magni
on a sub-panel associated with a front panel of said
to said front panel for movement between a ?rst posi
tion in which said sub—panel is oriented vertically so as
to exposes one side of said rotary dial assembly for
manual operation and a second position in which said
sub-panel is oriented horizontally so as to expose the
other side of said rotary dial for manual operation.
36. The video tape recorder system as set forth in
40 claim 35, wherein said ?rst mode selector switch is
disposed on the portion of said front panel opposing said
sub-panel when the latter is in its vertical position, hid
den thereby and accessible only when said sub-panel is
in said horizontal position.
tude of its rotation.
29. The video tape recorder system as set forth in 45
37. The video tape recorder system as set forth in
claim 28, wherein said ring is connected to said manu
claim 31, which further comprises means for triggering
ally operable rotary dial system to form an assembly and
a picture search mode and producing a command for
is operable independently of said manually operable
entry into the picture search mode, a ring rotatable
rotary dial system.
independently of said dial and a fourth sensing means
30. The video tape recorder as set forth in claim 29,
wherein said assembly is mounted on a sub-panel hinged
to a front panel of said video tape recorder system, said
sub-panel having two surfaces at which at least said
rotary dial is accessible.
monitoring the angular position of said ring and produc
ing a shuttle mode selector signal when angular dis
placement of said ring is detected, and said controller is
responsive to said shuttle mode selector signal in the
presence of said command for selectively performing
31. The video tape recorder system as set forth in 55 forward and reverse playback at a variable playback
claim 26, wherein said rotary dial system comprises:
a dial manually rotatable at a desired speed in oppos
speed varying in accordance with the direction and
magnitude of angular displacement of said ring.
38. The video tape recorder system as set forth in
ing ?rst and second directions;
claim 37, wherein said second and ?rst sensing means
a ?rst sensing means for monitoring the direction of
rotation of said dial and producing a direction in 60 also cooperate with said ring for monitoring angular
dicative signal;
a second sensing means for monitoring magnitude of
angular displacement of said dial and producing a
rotation angle indicative signal;
a timer set mode switch manually operable to pro
duce a ?rst mode selector signal ordering said
video tape recorder system to operate in a timer set
mode;
displacement of the latter and producing said rotating
direction indicative signal and said rotation angle indic
ative signal.
39. The video tape recorder system as set forth in
claim 38, wherein said controller is also responsive to
rotation of said dial in the presence of said command for
performing forward and reverse playback selectively at
a given speed according to rotation of said dial.
4,786,982
19
tape recorder system for selecting a television
channel;
a manually recordable rotary dial system associated
with said timer to allow selection of said recording
ing the direction, magnitude and speed of angular dis
placement thereof.
start timing, recording end timing, and television
channel by rotation thereof, said rotary dial system
‘
41. The video tape recorder system as set forth in
claim 40, wherein said dial is further associated with a
click mechanism providing a detent action at every
comprising:
a dial manually rotatable at a desired speed in oppos
ing ?rst and second directions;
given angle of angular diaplacement, which given angle
a ?rst sensing means for monitoring magnitude of
angular displacement of said dial and producing a
corresponds to one frame of a video signal.
42. A video tape recorder system comprising:
a signal processing system for processing video tape
recorder signals for recording and reproducing,
which signal processing system is associated with a
timer for time-activated recording;
rotation angle indicative signal;
5
said display for displaying at least symbols represent
and in which the selected television channel is
ing a time-activated recording start timing and end
indicated on a display;
means for triggering a channel set mode for the video
timing; and
a controller responsive to said timer set mode selector
tape recorder system for selecting a television
signal for changing the value represented by each
channel;
said timer being actuable to select a recording start
timing, recording end timing and a television chan 25
nel to be recorded; and
a manually rotatable rotary dial system associated
with said timer to allow selection of said rotation
43. The video tape recorder system as set forth in
a timer set mode switch manually operable to pro
duce a timer set mode selector signal ordering said
video tape recorder system to operate in a timer set
mode;
a television tuner for selecting a television channel
start timing, recording end timing and television
channel by rotation thereof.
20
means for triggering a channel set mode for the video
40. The video tape recorder system as set forth in
claim 37, wherein said dial and said ring are associated
with a common rotary plate with which said ?rst, sec
ond and third sensing means are associated for monitor
of said symbols at a given rate on said display, said
given rate being selected on the basis of the values
of said direction indicative signal and said rotating
angle indicative signal, and said controller is re
sponsive to rotation of said dial in said channel set
mode to adjust the channel selection according to
angular displacement of said dial.
30
claim .42, which further comprises a second sensing
means for monitoring the rotation speed of said dial and
producing a rotation speed indicative signal, and said
controller is responsive to said rotation speed indicative
signal to adjust said given rate in accordance therewith.
44. The video tape recorder system as set forth in
claim 42, wherein said controller adjusts the rate of
change of said television channel in said channel set
mode depending upon said rotation speed indicative 40
signal value.
47. A rotary dial assembly for a video tape recorder
system capable of recording and reproducing video
signals, performing a picture search, and performing
timer activated recording, comprising:
a dial manually rotatable at a desired speed in oppos
ing ?rst and second directions;
a ?rst sensing means for monitoring magnitude of
angular displacement of said dial and producing a
rotation angle indicative signal;
a timer set mode switch manually operable to pro
duce a timer set mode selector signal ordering said
video tape recorder system to operate in a timer set
45. In a video tape recorder system with a rotary dial
input device, a method of inputting information from a
user to the video tape recorder system comprising the
steps of:
45
a display for displaying at least symbols representing
manually rotating said rotary dial at a rate to an ex
tent and/or in a direction indicative of the desired
a controller responsive to said rotation angle indica
information;
monitoring rotation of said rotary dial; and
converting the direction, speed and/or extent of rota
tion of said rotary dial into an information form
readily employable by said video tape recorder
system for performing at least two of a picture
search by feeding ?elds of video signals depending
upon the direction and/or extent of rotation of said
dial and at the speed depending upon the rotation
speed of said dial; a timer set for setting time
mode;
a time-activated recording start timing and end
timing; and
tive signal for performing the picture search for
feeding ?elds of video signals in a forward and a
reverse direction according to a rotating direction
of said dial, a number of ?elds to feed depending
upon said rotation angle indicative signal value and
responsive to said timer set mode selector signal for
changing the value represented by each of said
symbols at a given rate on said display, said given
rate being selected on the basis of the values of a
dial rotation direction indicative signal and said
rotation angle indicative signal.
activated video recording operation start timing,
48. A video tape recorder having a timer activated
recording operation end timing and channel to be
recording function comprising:
recorded; and channel selection.
60
a dial manually rotatable in opposing directions;
46. A video tape recorder system comprising:
sensing means for sensing the rotation of said dial;
a signal processing system for processing video tape
selecting means for selecting set modes of said time
recorder signals for recording and reproducing,
activated recording function, said set modes com
which signal processing system is associated with a
prising at least a record-starting set mode and a
timer for time-activated recording;
record-ending set mode;
a television tuner for selecting a television channel
and in which the selected television channel is
indicated on a display;
a controller responsive to said selecting means for
changing the contents of each of said set modes
according to an output from said sensing means.
4,786,982
22
21 ~
49. A video tape recorder as set forth in claim 48,
wherein said sensing means includes ?rst sensing means
vertically so as to expose one side of said dial and a
for sensing the magnitude and direction of rotation of
said dial, and controller changing the content of each of
tioned horizontally so as to expose the other side of
second position in which said sub-panel is posi
said dial.
54. A video tape recorder having a picture search
said set modes according to the magnitude and direction 5
of rotation of said dial sensed by said ?rst sensing
function comprising:
a dial manually rotatable in two directions;
means.
50. A video tape recorder as set forth in claim 49,
a ring rotatable in opposite two directions manually
comprising wherein said sensing means further com
and independently of said dial;
prises second sensing means for sensing the speed of
?rst sensing means for sensing the rotation of said
rotation of said dial, whereby the changing rate of said
dial;
contents to the change of magnitude of rotation of said
second sensing means for sensing the rotation of said
dial is changed according to said speed of rotation of
ring;
said dial as sensed by said second sensing means
51. A video tape recorder as set forth in claim 48,
wherein said set mode further comprises a TV channel
selection mode.
52. A video tape recorder as set forth in claim 48,
further including a picture search function, said video
mode selecting means responsive to said second sens
ing means for selecting a jog mode or a shuttle
mode, said jog mode being selected when the posi
tion of said ring is within a predetermined range
from a neutral position and instead said shuttle
mode is selected when the position of said ring is
out of said predetermined range;
tape recorder further comprising:
a second controller for performing said picture
search function at a given tape speed according to
the rotation of said dial.
a controller responsive to said mode selecting means
for controlling tape speed in said picture search
53. A video tape recorder as set forth in claim 48,
further comprising:
25
a sub-panel for mounting said dial thereon;
wherein said sub-panel is hinged to a front panel of
function according to said ?rst or second sensing
‘means, whereby said tape speed is controlled ac
cording to said ?rst sensing means in said jog mode
while the same is controlled according to said sec
ond sensing means in said shuttle mode.
said video tape recorder for movement between a
=0:
?rst position in which said sub-panel is positioned
35
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It
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