JPS57136880A - Intercarrier system receiver for television audio signal - Google Patents

Intercarrier system receiver for television audio signal

Info

Publication number
JPS57136880A
JPS57136880A JP56022533A JP2253381A JPS57136880A JP S57136880 A JPS57136880 A JP S57136880A JP 56022533 A JP56022533 A JP 56022533A JP 2253381 A JP2253381 A JP 2253381A JP S57136880 A JPS57136880 A JP S57136880A
Authority
JP
Japan
Prior art keywords
intermediate frequency
audio intermediate
bpf
tuning circuit
frequency 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
JP56022533A
Other languages
Japanese (ja)
Inventor
Toshiaki Meguro
Shinya Fukushima
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP56022533A priority Critical patent/JPS57136880A/en
Publication of JPS57136880A publication Critical patent/JPS57136880A/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
    • H04N5/62—Intercarrier circuits, i.e. heterodyning sound and vision carriers

Landscapes

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

Abstract

PURPOSE:To remarkably reduce buzz beat of a sub-channel signal, by inserting a high gain amplifier between a BPF for pickup of FM modulated audio intermediate frequency signal and an audio intermediate frequency tuning circuit. CONSTITUTION:A part of an output of a video detector 4 is applied to a BPF 5 for FM modulated audio intermediate frequency signal pickup. The output of the BPF 5 is applied to an audio intermediate frequency tuning circuit 6 via a high gain amplifier 14 having >=13dB amplification factor consisting of a common emitter transistor 15, and buffer effect is given with the amplifier 14 to improve the signal distortion. In the tuning circuit 6, one end of a primary coil 7a of a tuning transformer 7 is grounded and another end is grounded via a capacitor 8, and one end of a secondary coil 7b is grounded via a capacitor 9, and an audio intermediate frequency signal picked up at a filter 5 is applied to an intermediate tap of the primary coil 7a.
JP56022533A 1981-02-18 1981-02-18 Intercarrier system receiver for television audio signal Pending JPS57136880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56022533A JPS57136880A (en) 1981-02-18 1981-02-18 Intercarrier system receiver for television audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56022533A JPS57136880A (en) 1981-02-18 1981-02-18 Intercarrier system receiver for television audio signal

Publications (1)

Publication Number Publication Date
JPS57136880A true JPS57136880A (en) 1982-08-24

Family

ID=12085430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56022533A Pending JPS57136880A (en) 1981-02-18 1981-02-18 Intercarrier system receiver for television audio signal

Country Status (1)

Country Link
JP (1) JPS57136880A (en)

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