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United States Patent [191
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Patent Number: Re. 33,497
[45] Reissued Date of Patent: Dec. 18, 1990
Honma et al.
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[73] Assignee: Sony Corporation, Tokyo, Japan
[21] Appl. No.2 324,905
FOREIGN PATENT DOCUMENTS
0972796
.
[22] Flled‘
Mar-17’ 1989
PIA nel N. N
W.
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Filed:
[51] Int. c1.5
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3,18
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6,5Hs.m
1
369/10
369/12
Assistant Examiner—Hoa Nguyen
Attorney, Agent, or Firm-Lewis H. Eslinger; Jay H.
Maioli
Reissue of:
am
8/1975 Canada
0116463 8/1984 European Pat. Off.
Primary Examiner-Stuart S. Levy
Related U.S. Patent Documents
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Aug. 23, 1984
ABSTRACT
A combination portable magnetic tape cassette player
H04B 1/08; G11B 31/00;
and multiband radio receiver in which the sensitive
.
G11B 33/06
elements of the radio receiver are arranged wlthin a
.. 369/10; 369/1;
hinged, plastic cover of the combined apparatus and the
369/11372255/351; 343/702
[58] Field of Search
369/10, 11, 12, l;
455/351, 344, 347, 348; 343/702
circuitry of the radio receiver is formed on a printed
circuit board having an AM band antenna mounted
[52]
[56]
U.S. c1.
..
References Cited
U.S. PATENT DOCUMENTS
thereto, whereby the AM receiver antenna is electro
magnetically unshielded by the plastic cover and the
combined tape player and radio receiver is of a size
substantially equal to that of the tape player alone.
2,740,114 3/1956 Adams
343/702
3,573,628 4/1971 Joseph
455/351
13 Claims, 6 Drawing Sheets
US. Patent
Dec. 18, 1990
Sheet 1 0f 6
Re.33,497
US. Patent
Dec. 18, 1990
Sheet 2.0m
Re.33,497
US. Patent
Dec. 18, 1990
Sheet 3 of 6
Re.33,497
US. Patent
Dec. 18,1990
Sheet 4 of6
Re.33,497
US. Patent
Dec. 18,1990
Sheet 5 0f6 '
Re.33,497
US. Patent
Dec. 18, 1990
Sheet 6 of6
FIG. 6
42
76
4/
40
24
35
26
66 72 74
35
Re.33,497
1
Re. 33,497
2
PORTABLE TAPE PLAYER WITH RADIO IN LID
order to provide the necessary mechanical strength.
Quite frequently, the bar or rod antenna of the AM
Matter enclosed in heavy brackets [ ] appears in the
original patent but forms no part of this reissue speci?ca
tion; matter printed in italics indicates the additions made
sarily be located in proximity to such metallic compo
nents, with the result that the radio wave being received
are obstructed and interfered with by these metallic
by reissue.
parts on their way to the rod antenna. This antenna
receiver, which may include a ferrite rod, must neces
location situation severely reduces the sensitivity of the
BACKGROUND OF THE INVENTION
radio receiver. In regard to receiving FM signals, the
10 electrical conductors connecting the earphone headset
1. Field of the Invention
This invention relates generally to a cassette tape
to the tape cassette player or radio receiver typically
player with a built-in radio receiver and, more speci?
provide the desirable thirty-inch antenna length opti
cally, to a cassette tape player with a built-in radio
mum for use in receiving FM radio signals.
receiver in which the radio receiver is formed on a
OBJECTS AND SUMMARY OF THE
circuit board arranged within the cover of the tape
INVENTION
player along with the radio antenna to receive broad
cast information without interference.
Accordingly, it is an object of the present invention
2. Description of the Prior Art
to provide a cassette tape player having a built-in radio
There are now known miniaturized, portable tape
receiver that is free of the above-noted defects inherent
cassette players that reproduce stereophonic music sig
in the prior art.
nals from a prerecorded cassette tape for listening by
Another object of the present invention is to provide
use of similarly miniaturized headphones. Such tape
a cassette tape player having a built-in radio receiver in
players are typically of a size that can be easily accom
which the assembly and maintenance operations of the
modated in one hand, and many are so small as to be
radio receiver elements are facilitated by providing a
25
inserted into a shirt pocket.
relatively spacious mounting area and in which the tape
Following the introduction of these small cassette
player housing is made of metallic material to improve
tape players there have been units produced that incor
mechanical strength.
porate a built-in radio receiver, so that not only can the
It is a further object of the present invention to pro
vide a tape cassette player having a built-in radio re
ceiver in which the rod antenna is mounted at a distant
tape programs be reproduced through the headphones
but also radio broadcasts, both AM and FM, can be
received and listened to through the same headphone
set. In such tape players incorporating a built-in radio
certain components are commonly utilized, for exam
ple, the electrical source, that is, the batteries, are used
location from the metallic housing of the tape cassette
player, in order to reduce obstruction by the metallic
housing in receiving the broadcast radio waves.
A still further object of the present invention is to
in common, as are the audio ampli?er and the head
provide a tape cassette player with built-in radio re
phone ampli?er. These units are used in common by
ceiver in which the radio receiver is arranged in a
both the radio receiver part and the tape recorder part
hinged cover of the tape cassette player.
in order to maintain the overall size of the unit as small
According to one aspect of the present invention the
as possible. In employing such commonality of parts
and the incorporation of the two functionally different 40 radio receiver is mounted in the hinged or pivotable
cover of a tape cassette player, which is typically
musical sound sources, it is necessary that the radio
formed of plastic material because mechanical and
receiver portion be incorporated into the tape player,
structural strength is not required in the lid of the tape
since the constituent elements of the tape player are
cassette player, and the bar or rod antenna is also lo
?xed in their physical relationships. This then requires
that the radio receiver be separated into part or seg
ments and that these segments be incorporated into the
various, several empty spaces available in the interior of
the tape player. Because such empty spaces are at differ
ent locations around the interior of the tape player, it
becomes necessary for the radio receiver to be divided
into several sections or segments with the location of
such segments corresponding to the vacent spaces
within the interior of the tape player. It is such arrange
ment of the radio receiver into these various parts that
45
cated in the plastic hinged cover, therefore, being as far
away as possible from the necessary metallic elements
of the tape cassette player, which are required in order
to provide either structural strength or are required
because of their electrical properties, that is, the motor
drive for the tape cassette player.
The above and other objects, features, and advan
tages of the present invention will become apparent
from the following detailed description of illustrative
embodiments thereof to be read in conjunction with the
results in the integrated radio receiver having a compli
accompanying drawings.
cated electrical wiring requirement relative to a con
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a tape recorder having
a built-in radio according to the present invention, with
ventional, unitary radio receiver. Perhaps most impor
tantly, when the tuner unit of the radio receiver is di
vided into several sections, as required for the reasons
set forth above, the lead length must necessarily be 60 no tape cassette arranged therein;
FIG. 2 is a perspective view similar to that of FIG. 1
increased, which results in an increase in stray capaci
but having a tape cassette loaded in a cassette-holding
tance between such leads, thereby increasing the possi
section of the tape cassette player;
bility of unwanted oscillations in the radio receiver
circuitry.
FIG. 3 is a perspective view of a tape cassette player
Additionally, the tape drive elements in the tape cas 65 having a built-in radio receiver in which the cassette
case is opened;
sette player, such as the capstan, the motor casing, and
FIG. 4 is a perspective view in exploded form show
the chassis located within the main body of the tape
ing the cassette case cover of the player of FIG. 3;
player must necessarily be made of a metallic material in
3
Re. 33,497
FIG. 5 is a perspective view, partially exploded,
showing a printed circuit board arranged inside the
4
is rotatably driven by a capstan driving motor, not
cassette case cover;
shown, also arranged within main housing 3. The for
ward portion of main housing 3 includes head housing
FIG. 6 is a cross-sectional view of the cassette case
cover of FIG. 5; and
FIG. 7 is a perspective view of an operating lever for
section 10 that encloses a playback magnetic head used
exclusively for contact with the magnetic tape to red
the electrical signals that have been magnetically re
switching to the desired band in the radio receiver of
FIG. 1.
corded on the tape. Also at one side of main body 3 is
DETAILED DESCRIPTION OF PREFERRED
EMBODIMENT
FIG. 1 shows a tape cassette player having a built-in
radio receiver according to the present invention and
battery housing section 11 that encloses the batteries
that provide the electrical power for the unit. These
housing sections 10 and 11 are arranged in side-by-side
longitudinal relationship at the front part of main hous
ing 3. During the playback or reproduction mode, the
magnetic head, not shown, is slidably moved forward
such tape player may typically have exterior dimensions
into tape cassette holding section 5 to maintain contact
of 100 mm in width, 70 in height, and 22 mm in thick
ness, when a tape cassette player is not loaded therein.
This particular tape cassette player is of the kind that is
expanded in size in order to insert a standard size com
arranged in one side of head housing section 10 and into
with the moving magnetic tape. Headphone jack 12 is
pact audio cassette. The tape player of FIG. 1 is shown
without a cassette being loaded therein. The tape player
this jack the connecting plug of the headphone, not
shown, or earphone is inserted.
On the outside of the front edge of main housing 3 are
arranged the operational controls for the tape cassette
has a main body 1 and a cover 2 pivotally mounted
player speci?cally, playback mode button 13, stop but
relative to the main body, so that it can be opened and
closed relative thereto as desired. The main body 1 is
ton 14, fast-forward button 15 and a rewind button 16
main housing 3, in order to expand the player to receive
a cassette. A tape cassette holding section 5 (FIG. 3) is
over between the tape recorder mode or the radio re
ceiver mode and is arranged on one side of main hous
ing 3, and a noise reduction switch 19 and a tape select
operating switch 20 are mounted in juxtaposition to one
are arranged in mutual spaced-apart relationship along
formed of a main housing 3 and an auxiliary housing 4,
the front of the housing. Sound volume adjustment
both of which are formed of metallic material and the 25 knob 17 is rotatably mounted at a lower-most edge of
auxiliary housing is slidably movable with respect to
main housing 3. Mode changeover control 18 changes
de?ned in main body 1 so that a compact audio cassette
can be mounted in place within main body 1. In order to
accomplish such cassette insertion it is necessary that
another along one side of main housing 3.
the auxiliary housing 4 be slidably moved in relation to
In auxiliary housing 4, which is slidably arranged
main housing 3 and, upon such movement, the tape
relative to main housing 3, cover 2 is adapted for pivotal
cassette player having a built-in radio receiver accord
movement to open or close tape cassette holding section
ing to the present embodiment then becomes approxi 35 5 and is mounted by hinge 25, shown in FIG. 4. By
mately 82 mm in height, the width and, thickness re
hingedly affixing cover 2 to auxiliary slidable element 4,
maining the same. The mechanical arrangement
when auxiliary element 4 is slidably moved outwardly
whereby auxiliary housing 4 can be moved in this fash
relative to main housing 3, cover 2 also moves, thereby
ion in relation to main housing 3 so that the tape cassette
providing the proper space for the tape cassette in the
can be mounted within the tape player, is described in 40 tape cassette holding section.
our copending Japanese Laid-open Utility Model Publi
Cover 2 is comprised of cover frame 21 and panel
cation No. 14106/ 1984 ?led July 20, i982. Nevertheless,
plate 26, and cover frame 21 is integrally formed having
a detailed description thereof is not necessary to explain
front plate 22a, side plates 22b, 22c, and rear plate 22d,
the present invention.
all of which are advantageously formed of synthetic
Main housing 3 of main body 1 accommodates the 45 resin, that is, of plastic material. Panel plate 26 formed
tape recorder parts, such as the tape drive mechanism
of synthetic material is affixed to the surface of front
and the mode selector, and the elements that may be
plate 22a of cover frame 21. Display window 27 is pro
used in common with the radio receiver, such as the
vided and is arranged substantially central of panel plate
audio or headphone ampli?er and the electrical power
26, so that the amount of tape on the respective reels of
the tape cassette held in holding section 5 can be visu
ally determined without opening cover 2. As is typical
in cassette players, gradations are provided on the trans
source. Thus, as seen in FIG. 3, in main housing 3 a pair
of reel-driving spindles are arranged to project through
a bottom plate 7 of the tape cassette mounting section 5
and engage the take-up and supply reel hubs of the tape
cassette, not shown. The construction of the compact
audio tape cassette is well known and has the magnetic
tape arranged for transport between rotatably mounted
takeup and supply reels. Tape driving spindles 8 and 9
are adapted to be selectively operated in a play mode, a
fast-forward mode, and a rewind mode, in the conven
tional fashion by a reel-driving electric motor arranged
inside main housing 3.
At one side of main housing 3 rotatable capstan shaft
6 of the tape driving mechanism projects upwardly into
the tape cassette holding section 5, in the known fash
ion. The tape driving mechanism cooperates with a 65
parent display window 27 to aid in determining the
length of tape available. Arranged at one side of display
window 27 are selected ones of the tuning frequencies
for the radio receiver, and these may be printed directly
on the plastics material. In this embodiment, three re
ceiving bands are provided for AM frequencies 28, FM
frequencies 29, and television channels 30 arranged in
juxtaposition in vertical rows and suitable frequency
display windows 31, 32, 33, respectively, are mounted
in registry with these respective frequency gradations
28, 29 and 30. A dial indication display window 34 is
arranged along one side of the frequency gradations and
is provided so that an indicator can be seen to move
pinch roller, not shown, for clamping the magnetic tape
along the length of windows 28, 29, and 30. While the
between the capstan and pinch roller and causing the
various windows 27, 31', 32, 33, and 34 are transparent,
the gradations 28, 29 and 30 are printed in opaque paint
tape to travel at a constant linear speed. Capstan shaft 6
5
Re. 33,497
6
radio receiver. Panel plate 26 is located by a peripheral
corder elements that are arranged inside main body 1.
Circuit board 41 is also electrically connected by ?exi
ble or ribbon cables 54 and 55 to the audio ampli?er and
rib 35 formed on cover frame 21 and is affixed at the
headphone amplifier typically located in main body 3 of
located position by a suitable adhesive.
Referring speci?cally to FIG. 4, cover frame 21 is
formed having a cut-out 36 so that the display window
the apparatus.
so that the interior elements cannot be seen from outside
this embodiment of a tape cassette player with a built-in
Apparatus is provided to tune or select the desired
27 in panel plate 26 can permit the interior of the tape
frequency of the various bands provided in the radio
receiver portion of the system, and a tuning assembly,
cassette holding section 5 to be visually cheoked from
outside the unit without opening the cover. Similarly,
cut-out 37 is formed as an enlongated through hole in
inner surface of side wall 22 of cover frame 21. Tuning
unit 57 includes variable resistance element 56 used for
shown generally at 57, is arranged and mounted to the
registry with dial indicator display window 34 and cut
changing the voltage on a variable capacitance element,
out 37 in cover frame 21 is provided to allow access
that is, a varicap, not shown, which serves to alter the
from the inside to bandwidth selecting windows 31, 32,
tuning capacity of the receiving circuit. Also included
and 33.
15 in tuning unit 57 are pulleys 58, 59, and 60 and tuning
On the inner surface of cover 2 is attached printed
knob 63, a portion of which is exposed through a cut
circuit board 41 for mounting and electrically connect
out in top cover 21, so that knob 63 is available for
ing circuit components, typically shown at 40, which
manual actuation to tune the receiver to the desired
~may be integrated circuit chips or similar components
of the radio receiver, such as the AM and FM tuner
sections, the intermediate frequency (IF) ampli?er, the
station. The resistance of variable resistor 56 is varied
by manually turning knob 63, and a dial indicator 65
detector, and the FM stereo demodulator. All of these
various functional circuits are easily reducible to inte
that is attached to dial string 62 is movable in relation to
display window 34 to indicate the tuned frequency by
means of gradations 28, 29, and 30 which are at the
grated circuit component size. Located approximately
various windows associated with the respective receiv
at the center of printed circuit board 41 is cut-out 43 25 ing bands.
that is provided for access to mount bar or rod antenna
Arranged between cover 2 and printed circuit board
42, which is used to receive AM radio broadcast signals.
41 is elongated, ?attened, operating lever 66 formed of
Antenna 42 is retained on circuit board 41 by a pair of
nonmetallic material, such as synthetic resin, and lever
antenna holders 44 and 45, which are preferably formed
66 is slidably mounted to operate bandwidth change
of nylon or other similar plastics material, and such 30 over switch 65, which is physically and electrically
antenna holders are attached to printed circuit board 41
mounted on printed circuit board 41. The mounting
at both longitudinal ends of cut-out 43. Antenna holders
arrangement of elongated lever 66, printed circuit
44 and 45 are adapted to hold the ends of bar antenna 41
by being formed having integral clamping elements 47
board 41, and change-over switch 65 is shown in FIG.
4. One end of enlongated lever 66 is formed having a
of the antenna holders 44 and 45. In this fashion, bar
downwardly recessed engaging boss 68, which engages
slidable element 67 of band change-over switch 65. The
other end of elongated lever 66 is formed having in
creased width and has printed thereon display mark 69,
antenna 42 is attached to printed circuit board 41 so as
which is so arranged as to be in juxtaposition with one
and 48 that simultaneously clamp onto the printed cir
cuit board 41 through the spreading action caused by
inserting the ends of antenna 42 into the respective ends
to be arranged within cut-out 43, thereby taking advan 40 of bandwidth switching display windows 31, 32, and 33,
depending upon the sliding location of enlongated lever
tage of a space corresponding to the thickness of printed
66. Enlongated, ?attened lever 66 also has a centrally
circuit board 42 and, thus, it is not necessary to provide
arranged, upraised operating knob or boss 72 for manual
an enlarged mounting space to accommodate antenna
actuation by the operator and elongated, operating
41, and the thickness of the tape player and radio re
ceiver combination of the present invention is not in 45 lever 66 is shown by itself in FIG. 7. Operating lever 66
creased. FIG. 5 shows bar antenna 41 as it would be
is so positioned that engaging boss 66 at one end en
installed in cut-out 43 of printed circuit board 41.
Printed circuit board 41, to which bar antenna 42 is
gages operating projection tab 67 of band change-over
above-described manner, has opening 52 formed therein
that is engaged by positioning lugs 51 that are formed
switch 65, so that display mark 69 at the other end is in
registry with one of the band selection display windows
31, 32, and 33. The operating control knob 72 is dis
posed within a elongated slot 73 formed in frame 21 and
integrally with the cassette cover 2. Printed circuit boar
41 is further retained by use of an adhesive, such as
is clamped between panel plate 26 and printed circuit
board 41, whereby operating knob 72 projects slightly
double-backed tape, to the inner surface of face plate 22
above the surface of cassette case cover 2 through an
mounted by using mounting brackets 44 and 45 in the
of cover frame 21 on the surface thereof that is not
other elongated slot 74 formed therein. By mounting
covered with circuit components. Such mounting of
elongated lever 66 in this fashion in the sliding slot 74,
it may be operated by laterally shifting the operating
circuit board 42 is shown in FIGS. 5 and 6. Cut-out 53
is formed in face plate 22a of frame 21 to accommodate
bar antenna 42, and this cut-out 53 is contiguous and
integrally formed with cut-out 36 in registry with dis
play window 27 so as to provide adequate clearance
space for bar antenna 42. The various circuit compo
nents, typically shown at 40, of the multi-band radio
receiver circuitry are arranged on printed circuit board
41, which is mounted to cassette cover 2, and are elec
knob 72 to operate the band change-over switch 65 and
to also bring display mark 69 into registry with one of
display windows 31, 32, and 33, corresponding to the
selected band, AM, FM, or TV, respectively.
Once again, by providing the above-described con
struction the overall thickness of the combination tape
recorder and radio receiver is maintained at a minimum.
trically connected by ?exible cables 54 and 55 mounted
More speci?cally, because the band selection display is
comprised of plate-like operating lever 66 of minimum
across hinge 25 to the electrical power source, not
shown, which is utilized in common with the tape re
thickness, which is received in slide groove 73 formed
by partially cutting through cassette case cover 2, case
7
Re. 33,497
8
cover 2 is thereby not increased in thickness. Addition
ally, power consumption is again maintained at a mini
means for arranging a cassette tape player within said
mum because no electrical display elements are required
a cover element hingedly attached to said main body
main body;
to indicate the selected receiving band.
In the inventive construction, printed circuit board 41 5
having a height substantially less than a height of
said main body and cooperating with said main
and tuning unit 57 are integrally mounted inside cover 2
and additionally are covered by cover plate 76 formed
of a nonmetallic synthetic material that is af?xed to
body and said tape player to form a cassette tape
holding section for receiving a cassette tape
therein; and
cassette case cover 2 by means of screws, shown typi
cally at 75. In this fashion, the electrical circuit compo 1O
nents mounted on the printed circuit board 41 are pro
means for arranging a radio receiver within said
cover element, said radio receiver including a
printed circuit board having a [substantially cen
trally arranged] cut-out [porition] portion and an
tected against both electrical shorts and also inadvertent
or accidental contact by the user.
antenna element and further comprising means for
As may be seen from the above and the drawings
associated therewith, the present invention provides a
tape recorder having a built-in radio receiver in which
radio receiver circuitry 40 is mounted on printed circuit
board 41, which is arranged inside and af?ned to the
mounting said antenna element substantially within
said [centrally arranged] cut-out portion that is
2. A combination portable cassette tape player and
built-in radio receiver according to claim 1, in which
inner surface of cassette case cover 2 at locations where
said radio receiver further includes at least a tuner, an
mounted within said cover element.
intermediate frequency ampli?er, and a detector and
there are no components required by the tape recorder,
said means for arranging said radio receiver includes
means for arranging said tuner, said intermediate fre
quency ampli?er, and said detector in said cover ele
ponents, consisting of the generally shown integrated 25 ment and in which said tape player arranged within said
main body includes at least an audio ampli?er and an
circuit chips 40, so that all of them can be attached to
electrical power source and further comprising connec
the single printed circuit board 41, whereby the thick
tion
means whereby said audio ampli?er and said elec
ness of the radio receiver portion of the system is re
so that printed circuit board 41 is mounted over the
entire inner surface of cover 2. Accordingly, this pro
vides a relatively large area for the radio receiver com
trical power source are employed in common by said
duced. Additionally, assembly time is reduced since the
tape player and said radio receiver.
assembly operations are facilitated because the radio 30
3. A combination portable cassette tape player and
receiver circuit components can be mounted on the
built-in radio receiver according to claim 2, in which
generally spacious printed circuit board 41. Addition
said tuner, said intermediate frequency ampli?er, and
ally, the tuning frequency gradations are formed in
said detector included in said radio receiver are
mounted on said printed circuit board.
proximity to tuning dial 23 on cover 2, so that while the
tuning operation is being performed the receiving fre
quency can be checked quite easily.
By attaching circuit board 41 to cassette case cover 2
it is possible to provide additional mechanical strength
so that the cassette case cover 2 can be formed as a thin
plate of synthetic or plastic material. This means that
35
4. A combination portable cassette tape player and
built-in radio receiver according to claim 1, in which
said main body comprises a housing formed of metallic
material and said cover comprises a housing formed of
plastic material having said antenna element arranged
therein, whereby said antenna is unshielded from elec~
again the overall thickness can be maintained at a mini
tro-magnetic radiation.
mum yet no sacri?ce in mechanical strength or physical
5. A combination portable cassette tape player and
and structural characteristics is made because the
built-in radio receiver according to claim 4, in which
printed circuit board stacked with case cover 2 provides
said radio receiver according to claim 4, in which said
a relatively rigid structure so that can be positively 45 radio receiver is of a kind for receiving more than one
closed without risk of being ?exed or deformed. Also,
broadcast band and further comprising a band selector
by providing the radio receiver elements on a circuit
switch mounted on said printed circuit board arranged
board separate from the main body of the tape recorder
within said cover element and a band selector operating
not only is assembly facilitated but also removal for
lever slidably mounted on said cover element and oper
maintenance is facilitated.
Perhaps most importantly, because the bar antenna 42
for AM radio reception is attached to the plastic case
cover 2 by locating it in printed circuit board 41, the
antenna is not surrounded by metallic parts so that its
ably connected with said band selector switch.
6. A combination portable cassette tape player and
built-in radio receiver according to claim 5, in which
said band selector operating lever comprises a flattened,
enlongated blade element slidably arranged between
receiving sensitivity is not lowered.
55 said cover element and said printed circuit board.
Although illustrative embodiments of the present
7. A combination portable cassette tape player and
invention have been described in detail above with
built-in radio receiver according to claim 6, in which
reference to the accompanying drawings, it is to be
understood that the invention is not limited to those
precise embodiments, and that various changes and
modi?cations can be effected therein by one skilled in
said antenna element is formed as a bar and in which
said means for mounting said antenna includes a least
two clip elements for attaching the ends of said antenna
element in said cut-out portion of said printed circuit
the art without departing from the scope or spirit of the
board.
invention, as de?ned by the appended claims.
8. Portable magnetic tape cassette player apparatus of
What is claimed is:
the kind for use with an earphone, comprising:
1. A combination portable cassette tape player and 65
a box-shaped main body arranged to contain said
built-in radio receive, comprising:
a main body in the form of a rectangular parallelepi
ped;
magnetic tape player;
a cover having a height less than a height of said main
body and being hingedly attached along one edge
Re. 33,497
main body includes a metal case and said cover includes
a plastic case, whereby said AM bar antenna mounted in
said cover is substantially unshielded from electro-rnag
netic radiation.
tape therein; and
a multiband radio receiver arranged within said
hingedly mounted cover and including at least a
11. Apparatus according to claim 10, further compris
printed circuit board, AM band receiving circuitry,
ing a band selector switch for selecting a broadcast band
of said radio receiver, said band selector switch being
mounted on said printed circuit board arranged within
and an AM bar antenna for receiving AM band
radio broadcasts, said printed circuit board being
arranged within said hingedly mounted cover and
having said AM band receiving circuitry mounted
said cover and a band selector operating lever slidably
mounted on said cover and operably connected with
thereon and having a [substantially centrally ar
ranged] cut-out section with said AM bar antenna
mounted within said cut-out section, wherein sig
nals received by said radio receiver are reproduced
through said earphone.
10
10. Apparatus according to claim 8, in which said
thereof to said main body, thereby forming a cas
sette tape holding section for receiving a cassette
said band selector switch.
12. Apparatus according to claim 11, in which said
band selector operating lever comprises a flattenedy
15
enlongated blade element slidably arranged between
said cover and said printed circuit board.
9. Apparatus according to claim 8, in which said
radio receiver further comprises FM band receiving
circuitry and in which said earphone includes an electri
13. Apparatus according to claim 12, further compris
ing at least two mounting elements for mounting said
AM bar antenna in respective ends of said cut-out por
cal conductor connected to said multiband radio re
ceiver, said electrical conductor comprising an antenna 20 tion of said printed circuit board.
*
i
1k
i
i
for FM band radio broadcasts.
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UNITED STATES PATENT AND TRADEMARK OFFICE
CERTIFICATE OF CORRECTION
PATENT NO.
DATED
: RE 33,497
: December 18, 1990
Page 1 of 1
INVENTOR(S) : Hideo Honma and Nobuyuki Sato
It is certified that error appears in the above-identi?ed patent and that said Letters Patent is
hereby corrected as shown below:
Column 1
Line 2, please insert the following before the first line of the specification:
-- Application Serial No. 08/356,775 filed December 12,
1994 is a division of this Reissue application. -
Signed and Sealed this
Thirtieth Day of December, 2003
JAMES E. ROGAN
Director ofthe United States Patent and Trademark O?‘ice
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