JPS5711584A - Audio multiplex broadcast discriminating circuit for television receiver - Google Patents

Audio multiplex broadcast discriminating circuit for television receiver

Info

Publication number
JPS5711584A
JPS5711584A JP8677280A JP8677280A JPS5711584A JP S5711584 A JPS5711584 A JP S5711584A JP 8677280 A JP8677280 A JP 8677280A JP 8677280 A JP8677280 A JP 8677280A JP S5711584 A JPS5711584 A JP S5711584A
Authority
JP
Japan
Prior art keywords
broadcast
circuit
output
switches
monaural
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
JP8677280A
Other languages
Japanese (ja)
Inventor
Kozo Yoshihisa
Isamu Okui
Yutaka Ogiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8677280A priority Critical patent/JPS5711584A/en
Publication of JPS5711584A publication Critical patent/JPS5711584A/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)

Abstract

PURPOSE:To enable to discriminate stereo broadcast, bilingual broadcast or monaural broadcast reception, by operating one phase locked loop with the presence of a pilot signal included in audio multiplex signal and its frequency. CONSTITUTION:A switching circuit 16 switches an audio reproducing circuit into a stereo reproducing mode, when the content of output of the 1st and 2nd voltage comparators 15, 17 is at H and L, and switches it into a bilingual reproducing mode when L and H. When the output of the 2nd voltage comparator 17 is at L, the circuit 16 switches an audio reproducing circuit into the monaural reproducing mode. Further, the output of the comparator is neither H nor L and the output of the comparator 17 is at H, the circuit 16 makes no switching by regarding the reception of a weak electric field. Thus, the reception state of stereo broadcast, bilingual broadcast and monaural broadcast can be identified.
JP8677280A 1980-06-26 1980-06-26 Audio multiplex broadcast discriminating circuit for television receiver Pending JPS5711584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8677280A JPS5711584A (en) 1980-06-26 1980-06-26 Audio multiplex broadcast discriminating circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8677280A JPS5711584A (en) 1980-06-26 1980-06-26 Audio multiplex broadcast discriminating circuit for television receiver

Publications (1)

Publication Number Publication Date
JPS5711584A true JPS5711584A (en) 1982-01-21

Family

ID=13896035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8677280A Pending JPS5711584A (en) 1980-06-26 1980-06-26 Audio multiplex broadcast discriminating circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS5711584A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189145U (en) * 1982-06-07 1983-12-15 広部　肇 heating element
US4653378A (en) * 1984-05-25 1987-03-31 Nippon Gakki Seizo Kabushiki Kaisha Pedal keyboard for electronic musical instrument
JPH06308933A (en) * 1993-04-21 1994-11-04 Japan Radio Co Ltd Picture display device, character display device and screen scrolling method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189145U (en) * 1982-06-07 1983-12-15 広部　肇 heating element
US4653378A (en) * 1984-05-25 1987-03-31 Nippon Gakki Seizo Kabushiki Kaisha Pedal keyboard for electronic musical instrument
JPH06308933A (en) * 1993-04-21 1994-11-04 Japan Radio Co Ltd Picture display device, character display device and screen scrolling method

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