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JPS5535586A - Multiple sound reception device - Google Patents

Multiple sound reception device

Info

Publication number
JPS5535586A
JPS5535586A JP10994978A JP10994978A JPS5535586A JP S5535586 A JPS5535586 A JP S5535586A JP 10994978 A JP10994978 A JP 10994978A JP 10994978 A JP10994978 A JP 10994978A JP S5535586 A JPS5535586 A JP S5535586A
Authority
JP
Japan
Prior art keywords
circuit
output
signal
detector
intermediate frequency
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
JP10994978A
Other languages
Japanese (ja)
Other versions
JPS6130797B2 (en
Inventor
Hiroyuki Nagai
Kaoru Sasabe
Akira Yamashita
Sakae Nagashima
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 JP10994978A priority Critical patent/JPS5535586A/en
Publication of JPS5535586A publication Critical patent/JPS5535586A/en
Publication of JPS6130797B2 publication Critical patent/JPS6130797B2/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
    • 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)

Abstract

PURPOSE:To eliminate the buzz sound be applying the delay AGC when the heavy field signal via the reception device of the double-super system, thus ensuring the sound reproduction free from the buzz sound, which is an advantage of the separate carrier system. CONSTITUTION:The 1st intermediate frequency signal is delivered form 1st mixer circuit 4 provided to tuner 2 of TV picture receiver and then applied to 2nd mixer circuit 7 via 1st intermediate frequency amplifier circuit 6 to be mixed with the output of 2nd local oscillation circuit 8. Thus the 2nd intermediate frequency signal is delivered. This signal is applied to FM detection circuit 11 via 2nd intermediate frequency amplifier circuit 9 to deliver the aural signal through output terminal 14. At the same time, the output of circuit 9 is applied to level detector 15, and the output of detector 15 is applied to AGC voltage amplifier circuit 16. And when the output of detector 15 is over the prescribed level, the delay AGC voltage is generated through detector 15 and circuit 16. The AGC voltage is applied to high frequency amplifier circuit 3 of circuit 2 as well as to circuit 6, thus preventing the occurrence of the buzz sound which is contained in the aural signal.
JP10994978A 1978-09-06 1978-09-06 Multiple sound reception device Granted JPS5535586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10994978A JPS5535586A (en) 1978-09-06 1978-09-06 Multiple sound reception device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10994978A JPS5535586A (en) 1978-09-06 1978-09-06 Multiple sound reception device

Publications (2)

Publication Number Publication Date
JPS5535586A true JPS5535586A (en) 1980-03-12
JPS6130797B2 JPS6130797B2 (en) 1986-07-16

Family

ID=14523195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10994978A Granted JPS5535586A (en) 1978-09-06 1978-09-06 Multiple sound reception device

Country Status (1)

Country Link
JP (1) JPS5535586A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799879A (en) * 1980-12-12 1982-06-21 Sony Corp Receiver for television audio signal
JPS57132888U (en) * 1981-02-16 1982-08-19
JPS57134491U (en) * 1981-02-16 1982-08-21

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142446A (en) * 1974-10-08 1976-04-10 Matsushita Electric Ind Co Ltd Surface acoustic wave filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142446A (en) * 1974-10-08 1976-04-10 Matsushita Electric Ind Co Ltd Surface acoustic wave filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799879A (en) * 1980-12-12 1982-06-21 Sony Corp Receiver for television audio signal
JPH0140549B2 (en) * 1980-12-12 1989-08-29 Sony Corp
JPS57132888U (en) * 1981-02-16 1982-08-19
JPS57134491U (en) * 1981-02-16 1982-08-21

Also Published As

Publication number Publication date
JPS6130797B2 (en) 1986-07-16

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