KR960013306B1 - 텔레비젼 시스템의 음성신호 처리회로 및 방법 - Google Patents
텔레비젼 시스템의 음성신호 처리회로 및 방법 Download PDFInfo
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- KR960013306B1 KR960013306B1 KR1019910001463A KR910001463A KR960013306B1 KR 960013306 B1 KR960013306 B1 KR 960013306B1 KR 1019910001463 A KR1019910001463 A KR 1019910001463A KR 910001463 A KR910001463 A KR 910001463A KR 960013306 B1 KR960013306 B1 KR 960013306B1
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- South Korea
- Prior art keywords
- signal
- phase
- output
- filter
- voltage
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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)
- Television Receiver Circuits (AREA)
- Television Systems (AREA)
Abstract
Description
Claims (2)
- 영상 및 음성신호가 혼합된 중간주파수로 부터 음성신호를 처리하는 회로에 있어서, 상기 중간주파수 신호를 수신하여 캐리어신호 성분만을 추출하는 제1SAW필터와, 상기 제1SAW필터의 출력 및 내부 발진 신호를 입력하며, 두 입력신호의 위상차신호를 발생하는 위상검출기와, 상기 위상검출기의 출력을 위상차 전압으로 발생하는 저역필터와, 상기 저역필터의 출력을 입력하고 수평동기신호를 제어신호로 입력하며, 상기 수평동기신호 구간에서 상기 위상차전압을 샘플링하고 영상신호 구간에서 홀딩한 위상차전압을 출력하는 샘플앤드홀드회로와, 상기 샘플앤드흘드회로에서 출력하는 위상차전압을 발진제어전압으로 입력하여 상기 캐리어신호와 동일한 주파수의 발진신호를 발생하는 전압제어발진기와, 상기 전압제어발진기의 출력을 쉬프트하여 상기 위상검출기에 인가하는 이상기와, 상기 중간주파수를 입력하여 상기 캐리어신호와 음성 중간주파수 신호를 여파하는 제2SAW필터와, 상기 제2SAW필터의 출력과 상기 이상기의 출력을 입력하며, 두 입력 신호의 차를 검출하여 순수 음성신호를 검출하는 동기검출기로 구성된 것을 특징으로 하는 텔레비젼의 음성 신호 처리회로.
- 음성 및 영상신호가 혼합된 중간주파수로부터 음성신호를 처리하는 방법에 있어서, 상기 중간주파수로부터 각각 영상 대역의 캐리어신호를 여파하여 제1필터신호를 발생하고, 영상 대역의 캐리어신호 및 음성 대역의 중간주파수를 여파하는 제2필터신호를 발생하는 과정과, 상기 제1괼터신호와 이전의 위상 고정된 제1필터신호의 위상차를 발생하는 과정과, 상기 위상차 전압을 수평동기신호의 구간에시 발진제어전압으로 공급하여 상기 위상 고정된 제1필터신호를 출력하는 과정과, 상기 제2필터신호와 위상 고정된 상기 제1필터신호의 차를 검출하여 음성신호를 발생하는 과정으로 이루어짐을 특징으로 하는 텔레비젼의 음성신호 처리방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910001463A KR960013306B1 (ko) | 1991-01-29 | 1991-01-29 | 텔레비젼 시스템의 음성신호 처리회로 및 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910001463A KR960013306B1 (ko) | 1991-01-29 | 1991-01-29 | 텔레비젼 시스템의 음성신호 처리회로 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920015900A KR920015900A (ko) | 1992-08-27 |
KR960013306B1 true KR960013306B1 (ko) | 1996-10-02 |
Family
ID=19310421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910001463A Expired - Fee Related KR960013306B1 (ko) | 1991-01-29 | 1991-01-29 | 텔레비젼 시스템의 음성신호 처리회로 및 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR960013306B1 (ko) |
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1991
- 1991-01-29 KR KR1019910001463A patent/KR960013306B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR920015900A (ko) | 1992-08-27 |
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