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JPS485702

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DESCRIPTION JPS485702
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram showing an embodiment of
the present invention. FIG. 9oFL, FR, RLJ. And RR-. . , X-Peak, · Nd resistance. 13
Detailed description of the invention This book 11 is a volume parameter adjustment circuit of
multi-stereo reproduction ** that converts a 2-channel source into a four or more-source stereo
signal and drives a plurality of speakers. Recently, since 4-channel stereo is talk I [Kfk and% fh,
the present stereo broadcast is a snow channel saw] -1 J-th, the 2-channel source is used to
obtain 4-channel stereo blue tatami effect. A so-called pseudo 4 channel system is considered.
That is, four speakers are driven by the difference signals of R, L (No. 1 and λ, L signals of two
channel sources. In this case, it is necessary to adjust the sound l balance before and after one as
well as if necessary! It is important to be able to switch to channel stereo reproduction, and to be
able to be realized with a simple and simple configuration. The present invention was made
under the above circumstances. SUMMARY OF THE INVENTION It is an object of the present
invention to provide a multistage stereo reproduction charge / discharge parane adjustment
circuit capable of performing adjustment of volume balance and channel switching back and
forth with a simple circuit configuration. In the following, the case where the second embodiment
of the present invention will be described with reference to the drawings will be described in the
case where it is applied to a pseudo four channel system for converting two channels to four
channel nutereo signals. , In, ytxa and RR front left and right. -Snow-Speakers arranged at the
rear left and right, t,-Two channels: ffi terminal for extracting L signal of Yannel some, 4-t,-tQ is
an output terminal for extracting R signal of i channel source, terminal t, -t%, t, <-1, for example,
1. I will do my best to get my kite. The terminal 1. -1; between the Nubica RL and the series
circuit of the series and the ZEI of the IIEI are connected in series, the output terminal t, the
speaker R &, between the desk and the series circuit of LL and the second polyum RH1vr Each is
connected, the first one. Between the sliders of the second polyum REhRH, blend resistance Rh1alarming, and 4 the sliders of each polyum RH, RH, the connection points of the speakers PL, RL
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on the right front and rear. Connect to the 11P saddle point of the right and left speakers PR1 RR
at right angles. In this case, the rear right and left speakers RJRR have series reverse phase and
six stones, and the first-degree second polyum RE, RH, and two pairs of bars operating in
conjunction with each other become the lithium, and the direction indicated by the arrow 1
shown. Alternatively, each slider slides in a reverse direction in the opposite direction. 1-3-ε
Next, the operation of the above circuit will be described. 1st. The pigeon house with the slider of
the second polyum R1i, RII in the middle position is driven by the difference signal R-Lf of the
rear speaker R1, RR, R, L signal or L-R, and the front left and right Speaker FT, PR # ′ ′ t L + Δ
R,!
Each is driven by the + ΔL signal. That is, part of the R and It signals are added through the
speakers ν L and RK RK and the blend 楯 anti Rb f. In this state, it will be a 4 cow yannel stereo
reproduction in this state, and the sound effect which had a sense of reality immediately can be
expected. Meanwhile, the first one. When the slider of the second polysilicon RE or RM slides in
the left direction in the drawing and is positioned at the left end, the rear right and left speakers
RJRR are short-circuited, and only the front speakers LL and νR are driven. In this pigeon, the
Kf11m blend resistor R11 is connected between the output terminals t ** t *, and the speaker PL.
Is electric only by νR R R, L signal? 1; +1 2 channel stereo reproduction always becomes 0 inch,
1st degree @! The speaker PL of KFi when there is a power on the right end 、 4-1 of the
illustration of the slide R of the town of RH R1 and RH1. νR is 4 [2 h stereophonic reproduction
by the speakers RL and RRK behind the abbreviation h. As described above, according to the
present invention, the shoulder row circuit K of the front and rear speakers connects the bars in
parallel, and the sliders of the volume are connected to the equal points of the front and rear
speakers and the sliders of the left and right volumes Since the blend resistance is connected
between them and driven by the rear speaker l-11 column reverse phase, the difference between
the rear speaker R1L signal at the middle position of the volume and the front speaker is mainly
the sum signal The bluetooth effect of KfK 4 channel can be sufficiently exhibited so as to be
respectively driven by the blend signal. By sliding the slider of the volume to the left or to the
right, forward F! Only e-speakers can be driven by j [signal (2-channel source). One circuit can
only be configured with flFIMIK as it only uses dual polyme. In the above * example, only when
obtaining 44-Jannels pre-leo signals from the 24-Jannel source is 6-nel? In the case of% F11, the
present invention is, of course, variously shaped and can be applied without changing the gist of
the invention. The simple explanatory drawing of tsew is a circuit diagram showing one real
example of the present invention. シL、IN、RLシよびRR−・・・・・ヌピーカ。 R1! , And
R-· · · · · · · · · · · · · · · · · · · · · · · · Pren y * anti. Applicants: Sansui Electric Co., Ltd., Deputy General
Counsel Suzue: 鉦 ej-ejAI:;, (, '' = 'l :: l', 4 "-囁 j 訪“, "'1 H H 1 tlt '1' 'bt> □ RWFHtz'! Hz 242
applicants San Sui M M 株 l r 妙 · 711283 ’A agent Suzue Take ン b7.
7025, list of attached documents 0) Committee fr: Letter (2) The specification is (3) Fig. Tlli 1 (4)
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Requests 2nd copy, 1 more than 6 drafters other than the above, utility model registration
applicant or agent (1) Inventor Tokyo Metropolitan Suginami Ward Izumi S-Chome No.14-1
Sansui Denki Co., Ltd. 9W Wing V Ito Sakai Suzuki Instituto Suzuki Katsusho Imamura Shin-(3)
Agent II Shiba Nishikubo, Minato Ward, Tokyo 2 Sakurakawa-cho No. 17 Mori e-ru 7 Name
(5743) IF 十 Shi Shitake Takeo ·) 21. ヱ Address same office,---1.1 Name (6694) IT logic Komiya
t: 1--Address same place copying 75 '-Name (6881) Patent attorney Atsushi Tsuboi, no
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