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JPS57135537A - Am stereophonic receiver - Google Patents

Am stereophonic receiver

Info

Publication number
JPS57135537A
JPS57135537A JP2117581A JP2117581A JPS57135537A JP S57135537 A JPS57135537 A JP S57135537A JP 2117581 A JP2117581 A JP 2117581A JP 2117581 A JP2117581 A JP 2117581A JP S57135537 A JPS57135537 A JP S57135537A
Authority
JP
Japan
Prior art keywords
stereophonic
tone signal
received
broadcast
detecting circuit
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
JP2117581A
Other languages
Japanese (ja)
Inventor
Koichi Nakano
Masaaki Maekawa
Susumu Genban
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP2117581A priority Critical patent/JPS57135537A/en
Publication of JPS57135537A publication Critical patent/JPS57135537A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To perform accurate display which shows that a stereophonic broadcast is being received, by using an LPF, a limiter and detecting circuit to detect a stereophonic pilot tone signal. CONSTITUTION:A stereophonic pilot tone signal detecting circuit consisting of an LPF7, a limiter 8 and a detecting circuit 9 detects a stereophonic pilot tone signal contained in a stereophonic subchannel signal. This tone signal turns on a stereophonic indicator to show that a stereophonic broadcast is being received. When the tone signal from the circuit 9 is not detected, the stereophonic indicator does not turn on, showing that a monaural broadcast is being received.
JP2117581A 1981-02-13 1981-02-13 Am stereophonic receiver Pending JPS57135537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2117581A JPS57135537A (en) 1981-02-13 1981-02-13 Am stereophonic receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2117581A JPS57135537A (en) 1981-02-13 1981-02-13 Am stereophonic receiver

Publications (1)

Publication Number Publication Date
JPS57135537A true JPS57135537A (en) 1982-08-21

Family

ID=12047585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2117581A Pending JPS57135537A (en) 1981-02-13 1981-02-13 Am stereophonic receiver

Country Status (1)

Country Link
JP (1) JPS57135537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735352A (en) * 1985-12-16 1988-04-05 Bando Chemical Industries, Ltd. Pin tractor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735352A (en) * 1985-12-16 1988-04-05 Bando Chemical Industries, Ltd. Pin tractor

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