JPS5768978A - Audio reception circuit for television receiver - Google Patents

Audio reception circuit for television receiver

Info

Publication number
JPS5768978A
JPS5768978A JP55146039A JP14603980A JPS5768978A JP S5768978 A JPS5768978 A JP S5768978A JP 55146039 A JP55146039 A JP 55146039A JP 14603980 A JP14603980 A JP 14603980A JP S5768978 A JPS5768978 A JP S5768978A
Authority
JP
Japan
Prior art keywords
output
audio
circuit
television receiver
reception 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.)
Granted
Application number
JP55146039A
Other languages
Japanese (ja)
Other versions
JPH0114750B2 (en
Inventor
Takemitsu Nishimori
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP55146039A priority Critical patent/JPS5768978A/en
Publication of JPS5768978A publication Critical patent/JPS5768978A/en
Publication of JPH0114750B2 publication Critical patent/JPH0114750B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To achieve excellent audio demodulation, by phase-detecting the output of an audio IF amplifying circuit, controlling the 1st local oscillator output of the tuner, AM-detecting the output of the audio IF amplifying circuit and feeding back the output via an AGC circuit. CONSTITUTION:Audio carrier in the output of an audio IF amplifying circuit 15 is phase-detected at an AFT detection circuit 16 and the obtained DC voltage is applied to an AFT control circuit 7 in a tuner 1, and the oscillation frequency of a local oscillator is controller according to the frequency shift of audio carrier. On the other hand, the output of the circuit 15 is applied to an AM detector 17 and fed back to the circuit 15 through an AGC circuit 19 according to the output. Thus, excellent audio demodulation 23 can be made.
JP55146039A 1980-10-17 1980-10-17 Audio reception circuit for television receiver Granted JPS5768978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146039A JPS5768978A (en) 1980-10-17 1980-10-17 Audio reception circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146039A JPS5768978A (en) 1980-10-17 1980-10-17 Audio reception circuit for television receiver

Publications (2)

Publication Number Publication Date
JPS5768978A true JPS5768978A (en) 1982-04-27
JPH0114750B2 JPH0114750B2 (en) 1989-03-14

Family

ID=15398718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146039A Granted JPS5768978A (en) 1980-10-17 1980-10-17 Audio reception circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS5768978A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881425A (en) * 1972-02-02 1973-10-31
JPS5414124U (en) * 1977-06-30 1979-01-30

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119706A (en) * 1975-04-14 1976-10-20 Asahi Denka Kogyo Kk Solvent fractionation of fat and oil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881425A (en) * 1972-02-02 1973-10-31
JPS5414124U (en) * 1977-06-30 1979-01-30

Also Published As

Publication number Publication date
JPH0114750B2 (en) 1989-03-14

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