JPS56120277A - Signal selection circuit - Google Patents

Signal selection circuit

Info

Publication number
JPS56120277A
JPS56120277A JP2341480A JP2341480A JPS56120277A JP S56120277 A JPS56120277 A JP S56120277A JP 2341480 A JP2341480 A JP 2341480A JP 2341480 A JP2341480 A JP 2341480A JP S56120277 A JPS56120277 A JP S56120277A
Authority
JP
Japan
Prior art keywords
input
output
subsignals
main
signal
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.)
Pending
Application number
JP2341480A
Other languages
Japanese (ja)
Inventor
Tatsuaki Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2341480A priority Critical patent/JPS56120277A/en
Publication of JPS56120277A publication Critical patent/JPS56120277A/en
Pending 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)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To automatically select an input signal, by connecting a comparator to the output of an interlocking variable rheostat where the main and subsignals are input, and controlling switching circuit with this output. CONSTITUTION:Main and subsignals are input to input terminals 21, 22 of an interlocking variable rheostat 23. At the output terminal which is controlled reverse to the same directional operation of the variable rheostat 23, a comparator 30 detecting the output difference is connected. Further, when a switch 32 is opened, the switching circuit 31 is in short circuit if the output difference between the sliders d1 and d2 rised to a given level or more, and a signal greater between the main and subsignals is fed to the input terminal of the amplifiers 26, 27, and either one signal is reproduced from speakers 28, 29 at the same time.
JP2341480A 1980-02-28 1980-02-28 Signal selection circuit Pending JPS56120277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2341480A JPS56120277A (en) 1980-02-28 1980-02-28 Signal selection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2341480A JPS56120277A (en) 1980-02-28 1980-02-28 Signal selection circuit

Publications (1)

Publication Number Publication Date
JPS56120277A true JPS56120277A (en) 1981-09-21

Family

ID=12109829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2341480A Pending JPS56120277A (en) 1980-02-28 1980-02-28 Signal selection circuit

Country Status (1)

Country Link
JP (1) JPS56120277A (en)

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