JPS5582572A - Audio multiplex receiver - Google Patents

Audio multiplex receiver

Info

Publication number
JPS5582572A
JPS5582572A JP15732678A JP15732678A JPS5582572A JP S5582572 A JPS5582572 A JP S5582572A JP 15732678 A JP15732678 A JP 15732678A JP 15732678 A JP15732678 A JP 15732678A JP S5582572 A JPS5582572 A JP S5582572A
Authority
JP
Japan
Prior art keywords
output
circuit
terminal
level
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
JP15732678A
Other languages
Japanese (ja)
Inventor
Yutaka Miki
Toshiro Nozoe
Teruo Kitani
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 JP15732678A priority Critical patent/JPS5582572A/en
Publication of JPS5582572A publication Critical patent/JPS5582572A/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)
  • Details Of Television Systems (AREA)

Abstract

PURPOSE:To increase the accuracy of discrimination with small size and low cost circuit and to increase the reliability, by discriminating whether or not multiplex broadcast with the amplitude of control signal through the provision of signal selection means, and enabling the identification of dual broadcast or stereo broadcast with frequency. CONSTITUTION:The detection output of the terminal 23 passes through BPF 24, it is detected at the AM detection circuit 28, the output is smoothed at the smooth circuit 25, it is converted into binary level at the threshold value circuit 26 and outputted at the output terminal 27. Thus, whether or not multiplex broadcast is discriminated. On the other hand, the output of the circuit 28 is inputted to the signal selection means 29. The output of the means 29 is different for the magnitude with the input frequency, the magnitude of the output is smoothed at the smooth circuit 30 and converted into binary level at the threshold value circuit 31. One of the control signals different in two frequencies is outputted at the terminal 32 as H level and another is as L level. Accordingly, the identification of dual or multiplex broadcast is made by the binary level at the terminal 32.
JP15732678A 1978-12-19 1978-12-19 Audio multiplex receiver Pending JPS5582572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15732678A JPS5582572A (en) 1978-12-19 1978-12-19 Audio multiplex receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15732678A JPS5582572A (en) 1978-12-19 1978-12-19 Audio multiplex receiver

Publications (1)

Publication Number Publication Date
JPS5582572A true JPS5582572A (en) 1980-06-21

Family

ID=15647242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15732678A Pending JPS5582572A (en) 1978-12-19 1978-12-19 Audio multiplex receiver

Country Status (1)

Country Link
JP (1) JPS5582572A (en)

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