Telephone answering programming devices

Telephone answering programming devices
Unlted States Patent [19]
[11] Patent Number:
Todd
[45]
[54]
TELEPHONE ANSWERING
3,592,968
7/ 1971 Ogawa .............................. .. 179/6 R
PROGRAMMING DEVICES
3,644,682
2/1972 Parilla
3,649,762
3/1972
[76] Inventor:
Leonard M. Todd, 424 W. 119th St.,
New York, NY‘ 10027
[21] Appl‘ NO‘: 3 235
.
[22]
Filed:
4,645,875
Date of Patent:
Feb. 24, 1987
.............. .. 179/100.1 C
Okamura .......................... .. 179/6 R
FOREIGN PATENT DOCUMENTS
1286306 1/1969 Fed. Rep. of Germany
’
242/5519
A
Jan. 12, 1979
1547048 10/1969 Fed. Rep_ of Germany
242/55.19
A
Related U_S_ Application Data
[63]
1929710 12/1969 Fed. Rep. of Germany
242/5519
A
1058253 2/1967 United Kingdom ............. .. 179/6 R
1165988 10/1969 United Kingdom
, 242/55.19 A
Continuation-impartofSer.NO-700,109,.1un-28.1976.
abandoned, which is a continuation-in-part of Ser. No.
88,909, Nov‘ 12, 1970, abandoned.
OTHER PUBLICATIONS
Int. 01.4 ............................................ .. H04M 1/64
[52]
[58]
us. c1. .......................... .. 379/70; 379/79
Field Of Search ................. .. 179/6 R, 6 AC, 6 c,
[56]
179/6 E’ 6'13’ 6'03; 360/132; 242/519 A
References Cited
U‘S' PATENT DOCUMENTS
Primary Examiner-Robert L. Richardson
[57]
ABSTR AC1‘
Output of an ampli?er is continuously coupled to the
2,815,401 12/1957 O’Dwyer .......................... .. 179/6R
3,003,012 11/ 1961 Proctor ---- -360/132
33443234 9/1967 salzberg '
179/6 R
line during line seizure, not loading the line during
standby. Input to a second ampli?er is coupled to the
line at least during line seizure. An SCR ?ip-?op pro
3,445,600
5/1969 Todd ........ ..
179/6 R
_
,
[51]
_
_
51m", slmple Telephone Answermg Machme, WR
1985 World, 7/56, pp- 344446
-d
t
°
th
C ammmcemc“
t d
Waldman
.... .. 179/6 R
V‘ as Power
3,524,936
8/1970
Hill . . . . . . . , . . . . .
. . . . .. 179/6 E
deck and may POWer the” decks alternately‘
3,586,779
1/1971
Chemack
.... .. 179/6 R
6 Claims, 8 Drawing Figures
O
Message Deck
H
AC
Auto.Ans. 1
Mess. Pluyl
a“
d
3/1970
AnnouncementDeck
ec
k
3,501,592
3,590,160 6/1971 Meri .................................. .. 179/6 R
_
message
US. Patent Feb. 24, 1987
Sheet 1 of4
4,645,875
IO
Announcement Deck
2
Message Deck
ll
/-23
AC
Auio.Ans.T
Mess. Plcyl
US. Patent Feb.24, 1987
Sheet4of4
4,645,875
1
__4,645,875
2
switch contacts or other switching means may be en
closed within the cassette or cartridge, enabling the use
of simple low cost recorders, or be incorporated in the
TELEPHONE ANSWERING PROGRAMMING
'
DEVICES
deck. This object may be accomplished similarly with
This application is a continuation-in-part of Ser. No. 5 other endless loops of usual design similarly modi?ed,
such as auto stereo cartridges and the Cousino tape
700,109 ?led June 28, 1976, and now abandoned, that is
a continuation-in-part of Ser. No. 88,909, ?led Nov. 12,
vendor.
1970 for Telephone Answering Devices, now aban
It is an object of this invention to use a two ampli?er
doned. This invention is a further development of the
circuit to couple theannouncement recorder output to
Telephone Answering Device of U.S. Pat. No.
the line with a switching device to furnish a dc. path for
3,445,600, issued to me, simplifying construction, reduc
line seizure, removing the low impedance of the an
ing costs and increasing reliability. Related applications
nouncement ampli?er output from the line during
include U.S. Pat. Nos. 3,794,764 and 3,794,767, Ser. No.
standby and with the message recorder input coupled to
464,626, ?led June 28, 1976 and Ser. No. 959,078 ?led
the line either before or after the switching device, that
Nov. 9, 1978, for a Ring Signal Detector, that were all - 5 does not affect line termination impedance because of
?led pursuant in part to requirements for election of
the high impedance of the message recorder input; this
species and restriction made in the applications
is an improvement over the circuit of U.S. Pat. No.
One aspect of cost reduction of this invention is to use
3,445,600 and is disclosed in part in U.S. Pat. Nos.
two “off-the-shelt" tape recorders, that is, recorders of
3,794,764 and 3,794,767.
usual design, with few modi?cations if any, together
BRIEF DESCRIPTION OF THE DRAWINGS
with their built in switching, and additional switching
means, with ring up signal switch and automatic pro
FIG. 1 is an arrangement of two cassette tape record
gramming means, to construct a telephone answering
ers with telephone line coupling, SCR-relay-transistor
set. This object is dealt with in part in U.S. Pat. No.
line seizure and timing arrangement and additional
3,794,767. The principles may be employed with spe 25 switching for automatic answer and message playback,
cially designed recorders.
including the coupling of the announcement ampli?er
It is an object of this invention to use two cassette
output to the line after the line seizure switch and the
coupling of the message recorder input to the line be
tape cartridges having the same or closely similar exter
nal dimensions, one for the endless loop tape and the
other for reel~to-reel tape for messages to make the
construction of tape drives less complex and costly and
fore or after the line seizure switch.
FIG. 2 is a view of the modi?ed cassette with endless
loop that may be capstan driven, with internal contacts
to provide convenience in storage of recorded tapes.
mounted on an inner surface of the cassette housing and
It is an object of this invention to respond to a ring up
plug and jack for connection of the contacts to external
signal and establish line service without disturbing or
interfering with normal telephone operation and to 35 circuits.
FIG. 3 is a short and long tape length system for
make only a small change in line termination impedance
message duration determining and automatic program
ming, induction pick up coil and solenoid handset lifter.
which is not readily apparent by electrical tests at the
Central Of?ce. It is an object of this invention to ac
complish this by decoupling the low output impedance
FIG. 4 is an arrangement using one tape length to
of the announcement ampli?er from the telephone line
that would otherwise place a heavy capacitiv‘ely cou
pled impedance on the line, in standby. This aspect of
the invention is dealt with in U.S. Pat. No. 3,797,764
and 3,797,767, both continuations-in-part of Ser. No.
40 determine message duration and the automatic answer
88,909.
45
It is an object of this invention to eliminate most
relays from the device through the use of solid state
switches, including SCR’s and particularly SCR’s in a
?ip-flop arrangement.
This invention will simplify message duration deter
mination by the use of a short impulse from the an
nouncement tape to turn the message tape recorder on
and a long impulse to turn the message tape recorder
and announcement recorder off, returning the device to
standby.
It is another object of this invention to couple the
device to the line with the “voice connector-—RDM” of
the A.T.&T. or to use a telephone pickup coil, ampli?er
and solenoid handset lifter, or to use magnetic or acous
tic coupling to the handset.
This invention may use a modi?ed “Compact Cas
sette” with endless loop tape to carry the announce
ing cycle in which both the announce and message
decks are on throughout the cycle, using an SCR flip
?op for turn-off.
FIG. 5 shows a circuit in which two tape decks are on
throughout the cycle, coupled to the line through the
A.T.&T. “voice-connector-RDM”, using a relay and
SCR for turn-off.
FIG. 6 is a circuit using a unijunction transistor to
time the automatic answering cycle, one SCR ?ip-?op
pair to turn the announce deck off and the message deck
on, and another SCR ?ip-?op pair to turn the device off
and release line seizure.
FIGS. 7A and 7B show a typical arrangement of a
record/play switch that, when the appropriate pushbut
55 ton is depressed for “record", reverses the ampli?er
input and output connections and activates the erase
head.
With record pushbutton in the released position,
FIG. 7B, the recorder is in “play” condition and the
60 erase head is deactivated.
In FIG. 1 announcement deck 1 contains endless loop
ment, further permitting the use of standard tape decks.
cassette 2, endless tape 3, short length of sensing tape 4,
long length of sensing tape 5, sensing tape contacts 6
It is an object of this invention to use such an endless
?xedly mounted to the inner surface of cassette 2, motor
loop tape cartridge together with a tape deck employ 65 7 and ampli?er 8. As noted in U.S. Pat. No. 3,445,600,
ing a “Compact Cassette” with reel-to-reel tape for the
message recorder as shown to simplify construction and
to increase convenience of operation. The sensing tape
other impulse generating elements may be used on the
tape with other impulse sensitive transducers in the
deck.
4,645,875
3
4
the announcement deck 1 off at the conclusion of the
message period; as the message duration period is ap
proached, switch 50 is placed in automatic answer until
turn off occurs, indicated by lamp 46 going out, and
In keeping with these principles, all sensing for the
impulse generating elements may be from cueing tones
on the tape to the record/play head of the announce
ment recorder that is evident from this disclosure and
then returning switch 50 to playback. This procedure
from US. Pat. No. 3,445,600, Re. 29,655.
Message record deck 10 contains standard reel-to
reel cassette 11, motor 12 and ampli?er 13. A ring up
signal from telephone line 14 is coupled to the gate of
SCR 20 through capacitor 15, resistor 16, transformer
may be simpli?ed with small circuit re?nements.
To check the announcement, announcement deck 1 is
set in playback by its pushbuttons and actuating mo
mentary contact switch 53 again. The deck may be
17, diode 18 and capacitor 19, causing SCR 20 to latch
turned off as the end of the message duration period is
on with current supplied from transformer 23, diode 24
approached by brie?y placing switch 50 in automatic
and capacitor 25. Current then flows through relay coil
answer until turn off occurs.
22 and transistor 26 which is held normally on by resis
tor 27. Relay contacts 28 and 29 then close. Linc seizure
As a ?rst step in simplifying the switching, the re
cord-play switch of many recorders on the market have
spare contacts which may be used to replace switch 50.
is established through the primary of transformer 30 and
resistor 31. Prior to ring up, the network 15, 16, 17
By the addition of suitable switching, push-buttons may
together with the low triggering power requirement of
the gate of SCR 20 presents a high impedance to the
be provided for automatic answer, message tape re
wind, message playback, announcement record and
line.
announcement check, and such rearrangement is appli
'
Announcement deck 1, with switches set for play
back, starts with current ?owing from power supply
cable to all of the circuits shown herein.
through contacts 29 over leads 33 to motor 7 and ampli
?er 8, the output of which goes through leads 34, and
transformer 30 carrying the announcement to the tele
tional contacts on the relay and replacing SCR 40 with
' phone line and to the caller.
At the conclusion of the announcement, short length
of sensing tape 4 closes sensing tape switch 6 sending a
short impulse to diode 41 and the gate of SCR 40, latch
ing the SCR on, causing the message record deck 10 to
f‘lstart, with its switches set for record. Current ?ows
1.1from power supply through leads 45 to motor 12, ampli
?er 13, SCR 40 and closed contacts 29. Lamp 46 lights.
The caller may leave his message which passes from
'l-line 14 through control 32, capacitor 36, leads 37 to the
input of message record ampli?er 13 and thence to the
tape in cassette 11.
At the conclusion of the message, determined by the
“length of tape 3 between sensing tapes 4 and 5, sensing
{tape 5 crosses sensing tape switch 6 sending a long
‘Ff-impulse through diode 42 to the base of transistor 26
-5I".causing it to cease conduction for the duration of the
With appropriate changes such as providing addi
a triac, a.c. operated transistorized recorders may be
used.
25
In FIG. 2, compact cassette case 2 houses modi?ed
endless loop hub 55; lubricated magnetic tape 3 coils on
the outside of the hub and is withdrawn from the inside
of the coil. Sensing tape contacts 6 are shown at the
outer portion of tape as it is withdrawn from the coil,
but these contacts may be located anywhere along the
exposed length of tape to contact either the inner or
outer face of the tape. Placing the sensing tape on the
outer face of the tape makes the cassette compatible
with recorders with self-contained sensing tape
switches. _ This principle of self-contained contacts
within an endless tape cartridge may be applied to four
and eight track stereo cartridges, Playtape cartridges
and the Cousino tape vendor. The latter is generally
applicable to any open reel-to-reel recorder. Jack 56
allows connection to external apparatus.
FIG. 3 shows a telephone set 61 inductively coupled
by pick-up coil 60 to the answering device using a line
powered solenoid handset lifter 65, which is permitted
long impulse. Current then flows from capacitor 21
through SCR 20 and relay coil 22, and resistor in paral
lel. In the time required for the capacitor to discharge,
which is determined by its value, say 0.3 seconds, relay
22 opens releasing contacts 28, releasing line seizure,
and transmitted over leads 62 to ring ampli?er 67 to
releasing contacts 29, stopping the recorders and cur
rent falls below the holding level of SCR 20, causing it
which power is furnished by power supply 25. The
ampli?ed ring signal is recti?ed and ?ltered by diode 18
by the tariffs and is not normally detectable at the cen
tral of?ce. A ring signal is inductively coupled to coil 60
to unlatch. The device is now in standby automatic
and capacitor 19 and applied to the gate of SCR 20,
answering condition.
Switch 50 in automatic answering position closes
ready leads 52 allowing ?ow through the telephone line
14 and lamp 51 lights. In message playback position,
50 latching the SCR on in the same manner as in the circuit
ready leads 52 are opened and lamp 51 is extinguished;
of FIG. 1. Coil 22 is energized through normally on
transistor 26 and contacts 29 and 68 close. Solenoid 65
is energized by recti?ed d.c. through diode 66, lifts the
handset and establishes line seizure. The cycle is there
SCR 40 and contacts 29 are shunted by switch 50, per 55 after similar to the FIG. 1 cycle. At the conclusion of
the message period, a pulse to transistor 26 unlatches
mitting message tape rewind and playback through
message deck ‘speaker.
To record an announcement, switch 50 is set in mes
sage playback position and a microphone (not shown) is
inserted into the input jack (not shown) of deck 10.
Announcement deck 1 is set in record by its pushbut
relay 22 and opens contacts 29 and 68, restoring the
handset to the cradle and the device is standby. Ampli
?er 8 is coupled to the coil 60 and coil 60 is coupled to
the input of ampli?er 13 in a similar manner to coupling
to the telephone line in FIG. 1. ‘Automatic answer,
message rewind and playback, announcement record
tons and momentary contact switch 53 is then actuated.
and check are also similar to these operations for FIG.
This ?res SCR 20 in the same way a ring up signal
1.
would and announcement deck 1 starts through its auto
In FIG. 4, the device is simpli?ed by causing the
matic answer cycle. The recorded announcement may 65
announcement and record decks 1 and 10, to go on and
be timed by observing a watch or to see sensing strip 4
off simultaneously, starting at ring up and stopping at
pass the cassette Window, and should slightly overrun
switch-on of message deck 10. Sensing tape 5 will turn
the conclusion of the message period determined by the
5
4,645,875
6
In the circuit of FIG. 6, duration of announcement
length of the tape and sensing tape 5. A ring up signal
goes to transformer 17, is recti?ed, ?ltered and applied
and message is determined by unijunction transistor 86.
A ring signal in telephone line 14 latches SCR 20, ener
gizes relay 22 and causes line seizure through contacts
28. Voltage is then applied to the unijunction transistor
circuit which starts to charge capacitor 88, preliminary
to ?ring in the time determined by the setting of vari
able resistor and the value of capacitor 88. The applica
tion of voltage across deck 1 and SCR 75 causes a ?ring
impulse through capacitor 78 to the gate of SCR 75
to the gate of SCR 20 which latches on, turning on relay
'22, announcement deck 1 and message deck 10.
Contacts 28 of relay 22 close, establishing line seizure.
When sensing tape 5 crosses sensing tape switch 6, an
impulse is sent to the gate of SCR 70 causing it to hold
momentarily, permitting the charge on capacitor 72
which had accumulated through resistor 71, to dis»
charge into SCR 20 causing turn-off of SCR 20 and
deenergizing of relay 22, opening contacts 28. Line
which latches on, starting announce deck 1. The endless
tape in deck 1 is sufficient for the announcement and
seizure is released and the device is restored to standby
automatic answer. The auxiliary functions of rewind,
terminates in sensing tape 5. When this crosses sensing
message playback, announce record and check are per
formed in a fundamentally similar manner to those pre
tape switch 6, an impulse is sent to the gate of SCR 76
causing it to latch on and turn off SCR 75 by discharg
viously described.
in g previously charged capacitor 77 backwards through
For message rewind and playback, switch 50 is
placed in playback position and rewind or playback
SCR 75. Message deck 10 is simultaneously turned on.
When unijunction time delay circuit ?res, it sends an
buttons of message deck 10 are depressed. For an
nouncement record and check, record or playback but
discharging capacitor 32, turning SCR 20 off, deener
impulse to the gate of SCR 70 which holds brie?y,
tons of announcement deck 1 are depressed; switch 50 is
gizing relay 22, opening contacts 28 and releasing line
in playback position. Switch 53 is momentarily actu
seizure. SCR’s 20 and 70 and 75-76 comprise SCR ?ip
ated, starting deck 1 so that the announcement may be
recorded or played back. As the conclusion of the mes
sage period approaches, switch 50 is placed in auto
matic answer until turn-off occurs, indicated by lamp 46
going out and then returning switch 50 to playback.
This procedure may be simpli?ed with small circuit
re?nements.
?ops.
25
For message rewind and playback, switch 50 permits
current flow to deck 10. For announcement record and
check, momentary contact switch 53 is actuated which
starts announce deck 1 through its cycle. Message deck
push buttons should be in the off position. When the end
of the message period approaches, switch 50 is placed
FIG. 5 shows the circuit of FIG. 4 adapted for use 30 brie?y in automatic answer until u.j.t. 86 ?res, terminat~
with the A.T.&T. “voice connector—RDM” which
ing the cycle, and then 50 is restored to playback.
differs somewhat from the “Recorder coupler" de
Many variations and permutations are possible within
scribed in U.S. Pat. No. 3,445,600. The latter is now
the spirit of this invention. More sophisticated switch
entitled “voice connector-RDL”. Telephone line 14 is
ing will enable automatic answer and message rewind
and playback to be selected with ‘less complexity. In
addition to flip-flops, shift registers may be used in vari
ous combinations in the programming circuits. Regen
erative pair transistors can replace SCR’s in some appli
cations. Transistor capacitor charging circuits may re
coupled to output terminals RR and TT which are then
coupled to announce and message decks 1 and 10
through control 32 and transformer 30. When ready
terminals “RDY” of the voice connector are closed
through normally closed contacts 82 of relay 22, with
switch 50 in automatic answer position, and a ring up
signal is received, line seizure occurs within the connec
place the UJT circuit. Darlington pair transistors may
be used to actuate relays.
There are several basic timing arrangements. The
announcement
tape may be the timing medium for tum
the conclusion of the message record period, sensing
tape 5 crosses sensing tape switch 6 giving an impulse to 45 ing off both announce and message decks at the conclu
tor, contact LS closes to LS 2 and current flows from
supply 25 to announce and message decks 1 and 10. At
sion of message. The announcement tape may turn on
the message recorder at the conclusion of the announce
ment and turn off both announce and message decks at
the gate of SCR 70 which latches on, energizes relay 22,
and opens relay contacts 82 and 83, which remain open.
Current flow to the recorders is now stopped by open
contacts 83. After about 2 seconds, voice connector
the conclusion of message. The duration of message
may be determined by a time delay means which starts
at line seizure, or by time delay means which starts at
the conclusion of the announcement and start of mes
sage recorder. This invention resides in the use of solid
contacts LS and LS2 open, stopping current to SCR 70
and relay 22, which then unlatch and deenergize, clos
ing contacts 82 and 83. The machine is now in standby
and the cycle is repeated when another call is received.
For message rewind and playback, switch 50 is
placed in message playback position and announce deck
1 is placed in “stop” or off position, inactivating the
sensing tape switch. For announcement record and
check, either the record or play buttons of deck 1 are
55
state circuits, SCR ?ip flops and the like to cause the
switching and timing rather than by the use of relays.
In the use of two tape recorders as shown herein,
both units may be housed together with power supply,
automatic programmer and auxiliary switching in one
case, with controls and cassettes open to view and un
depressed, the microphone is inserted into the proper
jack, the output plug to transformer 30 and the voice 60 necessary controls such as the rewind and fast forward
connector is removed, and announce check can be
heard over the speaker. When one cycle of announce
of the announce deck either concealed or deleted.
For convenience in understanding operation, the
record/play switches in announcement deck 1 and mes
record or check is completed, normally closed contacts
sage deck 10, that are coupled to the manual control
83 open and remain open, stopping the decks. Another
cycle of record or check is started by actuating nor 65 pushbuttons, are not shown in FIG. 1 and the wiring
shown indicates the connections made by the record/
mally closed momentary contact switch 81, unlatching
play switches set in automatic answer, with the appro
SCR 70, deenergizing relay 22 and reclosing contacts
priate pushbuttons actuated.
83.
7
4,645,875
8
stantial effect on termination impedance because of the
In FIG. 7A a typical tape recorder deck 45 is shown
high impedance of the input.
(corresponding with decks 1 and 10) with record/play
switch 350-35f in “record” condition with record push
buttons 35a depressed, closing switches 35a-35b, and
35f and 0 opening switches 35c-35d. In “record”, the
input jack is coupled to the input of ampli?er 38 and the
output of ampli?er 38 is coupled to the record/play
head 39, causing the input electrical sound signal to be
ampli?ed and recorded on magnetic tape 43 when the
The output circuit of the announcement ampli?er 8
has a relatively low impedance so that in this invention
it is coupled to the line following the line seizure switch
and accordingly does not load the line capacitively
during standby. This is a simple way of achieving the
objective and may be attained by other switching means
to remove the ampli?er impedance from the line during
standby within the spirit of this invention: In the circuit
of FIG. 3 of U.S. Pat. No. 3,445,600, both the announce
deck is operated. Switch 35f energizes erase head 47 to
erase previously recorded material. (This is not essential
to understanding programmer operation).
ment ampli?er output and the message ampli?er input
In FIG. 7B, in “play” condition, record pushbutton
35a is released, closing switches 35c-35a’ and opening
are continuously coupled to the line, so that the an
nouncement ampli?er output places a relatively heavy
switches 35a, 35b and 35f Record/play head 39 is cou 15 capacitive load on the line during standby; this tends to
interfere with service at least by causing some voice
pled through switch 35c to input of ampli?er 38 and
attenuation during standby when an associated tele
output of ampli?er 38 is coupled to deck output and
phone set is used and is detectable at the Central Of?ce.
speaker 46 through switch 35d. In this condition when
In FIG. 1 the connection of the input of ampli?er 13
the deck is operated, recorded material is played back to
20 through capacitor 36 to line load impedance 30-31 is
output and speaker 46.
shown in heavy lines and operation is described above.
This circuit is widely employed in recorders; the
Note record/play switch in FIG. 7A. The alternate
record/play switch also alters record/play frequency
construction is shown by dotted line from the upper
response, adds bias and matches impedance in record.
lead of telephone line 14 through capacitor 36 Alternate
Various forms of tape may be used including open and
25 to the upper lead going to the input plug of message
cassette reel-to-reel and endless loop cassettes.
deck 10; in this case, the left line of pair 37 to capacitor
As may be seen from the description of the tape
36 (solid lines) is disregarded. With the connection di
decks, the controls may be pushbutton, rotary dial or
rectly to the line (record/play switch as in FIG. 7A),
lever types without affecting the principles of the inven
the input from the telephone line is independent of the
‘iv'tion. The principle of the two cassette invention may be
condition of the line seizure switch. This connection is
’''*':'applied to specially constructed recorders as well as the
also described in US. Pat. No. 3,794,767, FIGS. 2-6. In
‘if two identical cassette recorders shown. The term
this invention, the markedly simpli?ed switching and
“Compact Cassette” is an unregistered trademark of the
cost reduction of the invention of US. Pat. No.
" North American Philips Company, Inc., applied to
3,445,600, Re. 29,655 is retained with the added advan
' ' interchangeable magnetic tape cartridges and this term
.
is generally employed in the electronics industry. The 35 tage of lightly loaded line described above.
In the claims “announcement reproducing means”
' construction of the reel-to-reel magnetic tape cartridge
and “message tape recording means” means a tape re
v{1'11 (cassette) in FIG. 1 is the subject of Us. Pat. No.
corder or tape deck, having an ampli?er or connection
3,394,899 based on an earlier (1966) German convention
pplication. The endless loop “Compact Cassette” is the
for an external ampli?er, a tape transport and controls
\ ubject of U.S. Pat. No. 3,653,601 to US. Philips Corp.
at least by the addition of signal generating means on
therefor, record/play and erase heads, mechanical link
age for engaging the tape and heads, and may include a
loudspeaker and microphone for announcement record
and check and message playback, and a record/play
magnetic tape 3 FIG. 1 typically sensing tape 5 with
switch.
"ti-‘based on earlier (1966) German convention applica
" tions, and other patents, and in this invention is modi?ed
-
In the claims, “coupling means to couple signals in
switching responsive means either in the deck or ?xedly 45
said telephone line to said input of said ampli?er” refers
mounted to and incorporated within the cassette hous
ing, with leads to connect the switching responsive
generally to connections to the input of this ampli?er,
element to external equipment.
In FIG. 2 leads, plug and jack are shown for connec
tion of sensing tape switch 6 to external circuits. Servic
either directly from the telephone line, from the line ,
load impedance where signals appear only during line
seizure, from capacity coupled transformers connected
ing of the device is simpli?ed from the construction
with sensing tape switch mounted in the deck. It should
to the telephone line, or the like. None of these con
be noted that sensing tape contacts and tape on the
line during standby.
graphite lubricated side of the tape may produce dif?
culty because of the relatively low resistivity of the
graphitesurface and this should be dealt with.
Capstan drive is usually employed in cassette record
structions places an appreciable load on the telephone
Typical units include open reel-to-reel, reel-to-reel
55
ers but other types of drive such as rim or hub drive
may be employed.
It will be understood that other methods of message
duration timing than that shown herein may be em
ployed including voice actuation by the caller or signals
or line voltage change caused by the caller hanging up
or the like.
The message record ampli?er input coupled to the 65
line load impedance has no effect whatever on tele
phone line termination impedance in standby. The input
of amplifer 13 coupled directly to the line has no sub
cartridge or ,cassette recorders or players, endless tape
stereo or mono cartridge recorders or players, Playtape
or the like or merely tape transports plus necessary
components for record and playback.
The record/play head of “announcement reproduc
ing means” in play condition is coupled to the input of
an ampli?er and the ampli?er output is coupled to the
telephone line, both through manually set switches; in
operation this delivers a recorded announcement to the
line.
The telephone line is coupled to the input of an ampli
?er of “message tape recording means” with the output
of the ampli?er coupled to the record/play head of the
recording means both through manually set switches; in
4,645,875
record condition and in operation, messages from the
line are ampli?ed and recorded on the tape.
Reference is made herein to Disclosure Document
No. 120 ?led July 17, 1969, pertaining to this invention.
I claim:
1. A telephone answering device coupled to a tele
phone line for reproducing an announcement and re
cording messages comprising a ?rst tape recorder, an
endless magnetic tape within said ?rst tape recorder, a
?rst short length of sensing tape on said endless tape
10
reproducing means and stopping said endless tape, stop
ping said message tape recording means and restoring
said answering device to standby.
3. A telephone answering device connected to a tele
phone line for reproducing an announcement and re
cording messages comprising endless tape announce
ment reproducing means, message tape recording
means, ?rst and second ampli?ers, each of said ?rst and
second ampli?ers having an input and an output, auto
matic programming means, when in automatic answer
ing condition adapted to respond to an incoming ring
located approximately at the conclusion of said an
signal in said telephone line and in ordered sequence to
nouncement, a second longer length of sensing tape on
establish line seizure, to start and stop said announce
said endless tape located at the conclusion of a message,
ment reproducing means, to start said message tape
a sensing tape switch adjacent said endless tape, a sec
ond tape recorder, ?rst switching means latching on 5 recording means and at the conclusion of a message
period to stop said message tape recording means and to
receipt of a ring up signal to establish line seizure and to
release line seizure, ?rst and second manual switching
start said ?rst tape recorder, second switching means
means, third switching means and a line load impe
latching in response to a short impulse caused by the
dance, said ?rst manual switching means in said auto
passage of said ?rst short length of sensing tape across
said sensing tape switch and starting said second tape
matic answering condition coupling said telephone line
to said input of said ?rst ampli?er and said output of said
?rst ampli?er to said message tape recording means,
said second manual switching means in said automatic
answering condition coupling said announcement re
unlatch said ?rst switching means, to release line sei
zure, to stop said ?rst tape recorder and to unlatch said 25 producing means to said input of said said second ampli
?er and said output of said second ampli?er to said line
second switching means and stop said second tape re
load impedance, said third switching means in series
corder, restoring said device to standby condition.
with said line load impedance across said telephone line,
2. A telephone answering device connected to a tele
recorder, third switching means activated by a longer
impulse caused by the passage of said second longer
length of sensing tape across said sensing tape switch to
phone line for reproducing an announcement and re
cording messages, each of said messages being recorded
actuated by said automatic programming means to op
erate and conduct upon receipt of said ring signal, to
provide a dc. path for said telephone line and establish
line service; at the conclusion of said message period,
said automatic programming means causing said third
means, a length of endless tape within said endless tape
switching means to open said do. path and release line
announcement reproducing means, said length of tape
rotating when said endless tape announcement repro 35 seizure.
4. A telephone answering device connected to a tele
ducing means is turned on, said length of endless tape
for a message period having a start and a conclusion,
comprising endless tape announcement reproducing
containing an announcement portion and a message
phone line for reproducing an announcement and re
duration timing portion, said announcement portion
cording messages, each of said messages having a start
and a conclusion, comprising endless tape announce
ment reproducing means, message tape recording
means, automatic programming means when in auto
matic answering condition adapted to respond to an
incoming ring signal in said telephone line and in or
having a start and a conclusion, a ?rst impulse generat
ing element of short duration located on said endless
tape approximately at said conclusion of said announce
ment, a second impulse generating element of relatively
longer duration located on said endless tape approxi
dered sequence to establish line seizure, to start and stop
mately at said conclusion of said message duration tim
ing~portion, impulse sensitive means adjacent said end 45 said announcement reproducing means, to start said
message tape recording means and at the conclusion of
less tape, message tape recording means, ?rst bistable
a message period to stop said message tape recording
switching means having a resting and a latched condi
means and to release line seizure, an SCR ?ip-?op in
tion, second bistable switching means having a resting
cluding ?rst and second SCR’s, a capacitor coupling
and a latched condition, unlatching means connected to
said SCR's, a power source and message duration deter
said ?rst and second bistable switching means, said ?rst
mining means, said endless tape announcement repro
bistable switching means connected to said telephone
ducing means and said message tape recording means
line and said endless tape announcement reproducing
connected in series with said power source and said ?rst
means, said second bistable switching means connected
SCR upon receipt of said ring signal, said automatic
to said message tape recording means, a ring signal
received in said telephone line actuating said ?rst bista~ 55 programming means establishing line seizure and caus
ing said ?rst SCR of said ?ip-?op to go into conduction
ble switching means into said latched condition and
and turning on power to said announcement reproduc
starting said endless tape announcement reproducing
ing means and to said message tape recording means; at
means, and rotating said endless tape, said ?rst short
said conclusion of said message period, said message
impulse generating element passing said impulse sensi
duration determining means giving an impulse to said
tive means at said conclusion of said announcement
second SCR that thereupon turns on and commutates
causing said second bistable switching means to latch
said ?rst SCR with said capacitor, turning off power to
and to start said message tape recording means, at said
said endless tape announcement reproducing means and
conclusion of said message period, said longer impulse
said message tape recording means and causing said
generating element passing across said impulse sensitive
means, generating a longer impulse, actuating said un 65 automatic programming means to release line seizure.
5. A telephone answering device connected to a tele
latching means, said unlatching means then unlatching
phone line for reproducing an announcement and re
said ?rst and second bistable switching means, releasing
cording messages, each of said messages having a start
line seizure, stopping said endless tape announcement
11
4,645,875
12
means, automatic programming means when in auto
and a conclusion, comprising endless tape announce
ment reproducing means, message tape recording
matic answering condition adapted to respond to an
means, automatic programming means when in auto
incoming ring signal in said telephone line and in or
matic answering condition adapted to respond to an
incoming ring signal in said telephone line and in or
dered sequence to establish line seizure, to start and stop
said announcement reproducing means, to start said
message tape recording means and at the conclusion of
dered sequence to establish line seizure, to start and stop
said announcement reproducing means, to start said
message tape recording means and at the conclusion of
means and to release line seizure, means to provide
a message period to stop said message tape recording
power to said endless tape announcement reproducing
a message period to stop said message tape recording
means and to release line seizure, an SCR flip-?op in 10 means and to said message tape recording means, an
SCR ?ip-?op including ?rst and second SCR’s, a capac
itor coupling said SCR’s, a power source and message
duration determining means, said endless tape an
nouncement reproducing means in series with said ?rst
SCR, said message tape recording means in series with
cluding ?rst and second SCR’s, a capacitor coupling
said SCR’s, a relay having a coil and contacts, a line
load impedance, a power source and message duration
determining means, said endless tape announcement
reproducing means, said message tape recording means
and said relay coil connected in series with said power
source and said ?rst SCR, said line load impedance and
said contacts connected in series across said telephone
said second SCR, said announcement reproducing
programming means causing said ?rst SCR of said ?ip
means and said ?rst SCR and said message tape record
ing means and said second SCR connected in parallel,
said parallel combination in series with said means to
provide power and said power source, upon receipt of
?op to go into conduction and turning on power to said
announcement reproducing means, to said message tape
said ring signal, said automatic programming means
establishing line seizure, enabling said means to provide
recording means and energizing said relay coil; said
contacts closing, providing a dc path for said tele»
phone line current through said line load impedance
and establishing line seizure; at said conclusion of said
power and causing said ?rst SCR to go into conduction,
causing said announcement reproducing means to oper
line, upon receipt of said ring signal, said automatic
ate and transmit an announcement to said telephone
line, at the conclusion of said announcement, said auto
matic programming means giving an impulse to said
message period, said message duration determining
means giving an impulse to said second SCR that there
upon turns on and commutates said ?rst SCR with said
second SCR, commutating said ?rst‘SCR and turning
capacitor, turning off power to said endless tape an
nouncement reproducing means and said message tape
on said message tape recording means to record a mes
recording means and deenergizing said relay coil, open
ing said contacts and releasing line seizure.
message period, said message duration determining
off said announcement reproducing means and turning
sage from said telephone line; at said conclusion of said
means causing said automatic programming means to
turn off said means to provide power and to stop said
6. A telephone answering device connected to a tele
phone line for reproducing an announcement and re 35 announcement reproducing means and said message
tape recording means, and to release line seizure, restor
cording messages, each of said messages having a start
ing said device to standby.
and a conclusion, comprising endless tape announce
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ment reproducing means, message tape recording
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