KR950010579A - Stereo / mono forced switching circuit - Google Patents

Stereo / mono forced switching circuit Download PDF

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Publication number
KR950010579A
KR950010579A KR1019930019931A KR930019931A KR950010579A KR 950010579 A KR950010579 A KR 950010579A KR 1019930019931 A KR1019930019931 A KR 1019930019931A KR 930019931 A KR930019931 A KR 930019931A KR 950010579 A KR950010579 A KR 950010579A
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KR
South Korea
Prior art keywords
mono
signal
voice
stereo
agc voltage
Prior art date
Application number
KR1019930019931A
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Korean (ko)
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KR960012928B1 (en
Inventor
안홍식
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930019931A priority Critical patent/KR960012928B1/en
Publication of KR950010579A publication Critical patent/KR950010579A/en
Application granted granted Critical
Publication of KR960012928B1 publication Critical patent/KR960012928B1/en

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    • 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

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

Abstract

본 발명은 튜너에 의해 선국된 방송신호의 강도에 다라 스테레오/모노를 강제적으로 전환시키도록 된 스테레오/모노 강제 전환회로에 관한 것으로서, 음성신호를 복조하는 음성복조 회루부와, 이 음성복조 회로부로부터 파일 롯트 신호를 검파하는 파일롯트 신호 검파부 및, 이 파일롯트 신호 검파부로부터의 제어신호에 따라 상기 음성복조 회로부로부터 인가되는 음성신호를 스테레오 또는 모노 처리하는 음성매트릭스 회로를 구비한 스테레오/모노 전환회로에 있어서, 선국된 방송신호의 레벨에 따라 AGC 전압을 생성하는 중간주파수 회로부와, 이 중간주파수 회로부에서 출력되는 AGC 전압의 레벨을 검출하여 강제 모노신호를 출력하는 AGC 전압 검출부를 포함하여 구성되고, 상기 파일롯트 신호 검파부는 상기 AGC 전압 검출부로부터 강제 모노 신호가 출력되면, 상기 음성 매트릭스 회로부를 모노 상태로 설정하는 것을 특징으로 한다.The present invention relates to a stereo / mono forced switching circuit for forcibly switching stereo / mono according to the strength of a broadcast signal tuned by a tuner, comprising: a voice demodulation circuit for demodulating a voice signal; Stereo / mono conversion having a pilot signal detector for detecting a pilot signal and a voice matrix circuit for stereo or mono processing a voice signal applied from the voice demodulation circuit according to a control signal from the pilot signal detector. A circuit comprising: an intermediate frequency circuit section for generating AGC voltage according to the level of a tuned broadcast signal; and an AGC voltage detector for detecting a level of AGC voltage output from the intermediate frequency circuit section and outputting a forced mono signal. The pilot signal detector may be a forced mono signal from the AGC voltage detector. When output, the voice matrix circuit portion is set to a mono state.

Description

스테레오/모노 강제 전환회로Stereo / mono forced switching circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 1실시에에 따른 스테레오/모노 강제 전환회로를 나타낸 불록 구성도.2 is a block diagram showing a stereo / mono forcing switching circuit according to an embodiment of the present invention.

Claims (2)

음성신호를 복조하는 음성복조 회로부와, 이 음성복조 회로부로부터 파일롯트 신호를 검파하는 파일롯트 신호 검파부 및, 이 파일롯트 신호 검파부로부터의 제어신호에 따라 상기 음성복조 회로부로부터 인가되는 음성신호를 스테레오 또는 모노 처리하는 음성 매트릭스 회로를 구비한 스테레오/모노 전환회로에 있어서, 선국된 방송신호의 레벨에 따라 AGC 전압을 생성하는 중간 주파회로부와, 이 중간주파 회로부에서 출력되는 AGC 전압의 레벨을 검출하여 강제 모노신호를 출력하는 AGC 전압 검출부를 포함하여 구성되고, 상기 파일롯트 신호 검파부는 상기 AGC 전압 검출부로부터 강제 모노 신호가 출력되면, 상기 음성 매트릭스 회로부를 모노 상태로 설정하는 것을 특징으로 하는 스테레오/모노 강제 전환회로.A voice demodulation circuit section for demodulating a voice signal, a pilot signal detector for detecting a pilot signal from the voice demodulation circuit section, and a voice signal applied from the voice demodulation circuit section according to a control signal from the pilot signal detector. A stereo / mono switching circuit having an audio matrix circuit for stereo or mono processing, comprising: an intermediate frequency circuit portion generating an AGC voltage according to the level of a tuned broadcast signal, and a level of the AGC voltage output from the intermediate frequency circuit portion; And an AGC voltage detector for outputting a forced mono signal, wherein the pilot signal detector sets the voice matrix circuit to a mono state when a forced mono signal is output from the AGC voltage detector. Mono forced switching circuit. 제1항에 있어서, 상기 AGC 전압 검출부는 AGC 전압이 일정레벨 이상일 때 강제 모노신호를 출력하도록 구성된 것을 특징으로 하는 스테레오/모노 강제 전환회로.2. The stereo / mono forced switching circuit of claim 1, wherein the AGC voltage detector is configured to output a forced mono signal when the AGC voltage is above a predetermined level. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930019931A 1993-09-27 1993-09-27 Stereo/mono converting circuit KR960012928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930019931A KR960012928B1 (en) 1993-09-27 1993-09-27 Stereo/mono converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930019931A KR960012928B1 (en) 1993-09-27 1993-09-27 Stereo/mono converting circuit

Publications (2)

Publication Number Publication Date
KR950010579A true KR950010579A (en) 1995-04-28
KR960012928B1 KR960012928B1 (en) 1996-09-25

Family

ID=19364764

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930019931A KR960012928B1 (en) 1993-09-27 1993-09-27 Stereo/mono converting circuit

Country Status (1)

Country Link
KR (1) KR960012928B1 (en)

Also Published As

Publication number Publication date
KR960012928B1 (en) 1996-09-25

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