JPS5599885A - Receiver for television audio multiplex broadcast - Google Patents

Receiver for television audio multiplex broadcast

Info

Publication number
JPS5599885A
JPS5599885A JP664179A JP664179A JPS5599885A JP S5599885 A JPS5599885 A JP S5599885A JP 664179 A JP664179 A JP 664179A JP 664179 A JP664179 A JP 664179A JP S5599885 A JPS5599885 A JP S5599885A
Authority
JP
Japan
Prior art keywords
signal
control
comparator
circuit
broadcast
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
JP664179A
Other languages
Japanese (ja)
Inventor
Katsuro Nakamura
Koji Arakawa
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.)
Toko Inc
Original Assignee
Toko Inc
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 Toko Inc filed Critical Toko Inc
Priority to JP664179A priority Critical patent/JPS5599885A/en
Publication of JPS5599885A publication Critical patent/JPS5599885A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • 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)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Receiver Circuits (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To enable circuit integration of detection circuit, by making unnecessary the reed filter, by forming the reference signal, detecting the phase difference with the control signal and discriminating the control channel signal. CONSTITUTION:The control channel signal consists of the control signal and the control sub-carrier signal. The control signal is introduced from the AM detector 2 as the detection output, and the control sub-carrier signal is made for waveform processing at the wave shape circuit 11, frequency division 12 is made to a given frequency, and both are fed to the phase comparator 13. The output of the comparator 13 is inputted to LPF 14, it is converted into potential difference and inputted to the voltage comparator 15, and the first and second control signals are detected with the difference of voltages. The comparator 13 detects the phase difference between the reference signal in frequency division 12 and the first and second control signals, and it is introduced as the error voltage via LPF 14. The signal selection circuit B selects and drives the stereo broadcast, double audio broadcast and monaural broadcast based on the control signal detected with the detection circuit A, through the buffer circuits 16, 17.
JP664179A 1979-01-23 1979-01-23 Receiver for television audio multiplex broadcast Pending JPS5599885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP664179A JPS5599885A (en) 1979-01-23 1979-01-23 Receiver for television audio multiplex broadcast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP664179A JPS5599885A (en) 1979-01-23 1979-01-23 Receiver for television audio multiplex broadcast

Publications (1)

Publication Number Publication Date
JPS5599885A true JPS5599885A (en) 1980-07-30

Family

ID=11643985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP664179A Pending JPS5599885A (en) 1979-01-23 1979-01-23 Receiver for television audio multiplex broadcast

Country Status (1)

Country Link
JP (1) JPS5599885A (en)

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