JPS5526780A - Television sound multiplex receiver - Google Patents

Television sound multiplex receiver

Info

Publication number
JPS5526780A
JPS5526780A JP10030478A JP10030478A JPS5526780A JP S5526780 A JPS5526780 A JP S5526780A JP 10030478 A JP10030478 A JP 10030478A JP 10030478 A JP10030478 A JP 10030478A JP S5526780 A JPS5526780 A JP S5526780A
Authority
JP
Japan
Prior art keywords
sound
receiver
adaptor
multiplex
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10030478A
Other languages
Japanese (ja)
Other versions
JPS6143911B2 (en
Inventor
Takahiro Yasuhoso
Giichi Tsuboi
Koji Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10030478A priority Critical patent/JPS5526780A/en
Publication of JPS5526780A publication Critical patent/JPS5526780A/en
Publication of JPS6143911B2 publication Critical patent/JPS6143911B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)

Abstract

PURPOSE:To make it possible to control the sound of an adaptor TV sound multiplex receiving by the volume variable capacitor of a TV receiver or a remotecontrol reception output, by providing the adaptor with a change-over switch, pulse- width modulator and photocoupler. CONSTITUTION:A sound multiplex signal from sound output circuit 11 of TV receiver 8 is supplied to multiplex demodulation circuit 18 via composite switch 17 and input transformer 14 of the sound multiplex receiving adaptor. In circuit 18, LPF and BPF separate a main channel component and sub-channel component, which are FM-detected and inputed to electronic volume unit 19. The direct-current output of remote control receiver 9 is applied via volume variable capacitor 10 to pulse-width modulator 22, where it is modulated into a pulse signal. The pulse signal is detected 23 via photo coupler 15 and then amplified 24 in term of direct current, thereby controlling electronic volume unit 19. Volume unit 19 attenuates main and sub channel sound signals. Consequently, the volume adjustement of the sound multiplex adaptor can be made by the TV receiver or remote control receiver and convenient operation can also be realized.
JP10030478A 1978-08-16 1978-08-16 Television sound multiplex receiver Granted JPS5526780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10030478A JPS5526780A (en) 1978-08-16 1978-08-16 Television sound multiplex receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10030478A JPS5526780A (en) 1978-08-16 1978-08-16 Television sound multiplex receiver

Publications (2)

Publication Number Publication Date
JPS5526780A true JPS5526780A (en) 1980-02-26
JPS6143911B2 JPS6143911B2 (en) 1986-09-30

Family

ID=14270419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10030478A Granted JPS5526780A (en) 1978-08-16 1978-08-16 Television sound multiplex receiver

Country Status (1)

Country Link
JP (1) JPS5526780A (en)

Also Published As

Publication number Publication date
JPS6143911B2 (en) 1986-09-30

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