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JPS53136102

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DESCRIPTION JPS53136102
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram showing an embodiment of
the present invention. A ... t · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
·················································································A
power amplifier. 5L, 5R... Head, 6L, 6R. 10L10R ...... resistance, 11L'11L "11R ', 11' bi ......
resistors, 14, 15, 16, 17 ...... power amplifier, 51A-81F · · · · · · Switch, 1 ° 2.3, 4 · · · · · · · · · · · ·
Speaker.
[Detailed description of the invention] Unthinkable East is a warfare sound dream device-P · E is a
car stereo. With regard to car radios, the purpose of the car radio is to switch between 2
channels, 4 channels and 4 channels, and 2 channels at a time. You can drive two left and right
front and rear wheels (by driving two left and right ビ ー sbi ト to the left and right sides of the
four channels): I can do all four I speakers The main point of the present invention is to
mount four power amplifiers on the second stage of the on-vehicle JfI sound III working unit, and
increase the number of sI units by switches. , R @ 2 amplifier for combining two Howa mixers,
2g, to produce a combined output, in the case of 4 channels, R signal increase 11 ti 2 power
amplifiers for 1 ti, 4 production Operating the power amplifiers simultaneously. The following is
an explanation of one embodiment of the "F" tree contract according to its independence. The
drawing shows a circuit showing the implementation 11 when applied to a car stereo. 0 drawing
l-z A tape dedecking part to A, B is a table denotation ', a part of Δ and t g Amplifier sections 1,
2, 3 and 4 are speakers. b) to S1 f, 3 point switch 4 t-tike, C's switch is connected as shown 図
figure @ v mark mark-path Ub on; (2- the output of the tape deck part 3A Two channel signals ζ
2-· · · from the terminals a, a ′; ie stereo L, R @ are power amplifier sections + oL, 1 o 7?
Supplied to The R signal is divided into two channel signals L ', L ", #, R' at resistors 11L ', t1L', ++
R 'and 11R' respectively. When the switches 51A-51F are switched to the two channel side as
shown in the figure, the split channel signal L 'is blocked by the switch 51AVC, and the channel
signal L "is supplied to the amplifier 16 through the resistor 12L" and the capacitor 1sL # p. The
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channel signal N is interrupted at the switch 51 B, and the channel signal R # is supplied to the
amplifier 15 through the resistor 12 R ′ ′ and the capacitor 1 s R #>. At this time, the speaker
4 is connected between the output terminals of the amplifiers 16 and 17, and is connected
between the output terminals of the amplifiers 16 and 17 to the speaker 2, partially HTL
(BalancedTra-yformarla,? s A doorway is constructed, and the above signal L ". R # HL channel
rear speaker a, R channel rear speaker 2 is supplied.
スイッチS1A〜51F? When channel 1 is switched to channel 1ttll, L channel 3 front
speaker 3Vc is supplied to signal L 'through switch 51Al resistor 12L', capacitor 1sL ', capacitor'
s + 'and capacitor 24L', and signal L # f-J resistor 12L #. , Capacitor 3 L ′ ′, booster 16. The
signal R 'is supplied to the L channel rear speaker 4 through the capacitor 24L #, and the signal
R' is supplied with the switch 51B, the resistor 12R, the capacitor 1sR ', the amplifier +4. The
signal R # is supplied through a resistor 2aJffy through an R channel and the signal R # is a
resistor 12R ', a capacitor sR', an amplifier 15. コンデンサ24/? The 'L L-through R is supplied
by the Chanlilias Heika 2VL. According to the present invention described above, the volume of
the sound field in the car can be increased to 9 V and the width of the sound can be increased to
0 or 4 channels and 2 channels. Is it possible to change σ? Is it an ol 2 channel at the time of the
BI'L circuit? Since the number of circuits is 4 times the power can be output, even when the
output is large distortion can be heard a small amount can be heard o Also 4 channels when VC 2
channels when the output falls in the car, f in the car A place can be: +-leveled and easy to hear. 4
Figure 1 vk #! ! Ming, 2) The drawing is a circuit diagram showing an embodiment of the present
invention. A ······· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
Tape Tape M, B · · · (amplifying unit. SL, sR ...-Head, 6 L, bR · old · · · 憎 + m device. 1 o L, + o R
····································· +5.16.17 ...-word amplifier. 51A−51に−・−・・−・−・・−・・ス
1ツチ、1,2. S、4・スピーカ。 Attorney Attorneys Attorney Docket No .: 0500-PCT-1 1)
Tida 2- ", -J5 Δ ') r17- La Sword--12t11 \ -41',> 11 I. Now + t17, person. Ichi 4 R / / A · l \ now
/? '1, al), page 1) 6I-9- ,, 11 / 宏 11 砿 # 11! Bespoke L □ tatami 雫-雫-□ □ □ "□"--------: 24 A 'I
4 鷹, 4. ・ One mouth 1'22s'hI7r) 2oA '/ zotl4d: S / (! SKI-F = 'j't □□ = 2 c424 If, 2r5lDzy −, /
2 ii: 1 to z3s iis zit □ L 喝 畳 □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □-□ □
"1361024 Bei Yu Yo rate of interest 1 · 1 '" Inventors other than the above, utility model
registration applicants or agents Inventors Al # Nipalakken Katkushio t Azainame address Ibaraki
Ts! !
1j E8 City Large 5esff 410 address Stock company Hitachi Hitachi Tokai factory name full name
Kurosawa Akiaki □ address deceased on □ □ name 1) Koshinari □, etc.
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