KR970023074A - Automatic channel tuning for video cassette recorders - Google Patents
Automatic channel tuning for video cassette recorders Download PDFInfo
- Publication number
- KR970023074A KR970023074A KR1019950037528A KR19950037528A KR970023074A KR 970023074 A KR970023074 A KR 970023074A KR 1019950037528 A KR1019950037528 A KR 1019950037528A KR 19950037528 A KR19950037528 A KR 19950037528A KR 970023074 A KR970023074 A KR 970023074A
- Authority
- KR
- South Korea
- Prior art keywords
- channel
- broadcasting
- cable
- input
- counter
- Prior art date
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Abstract
본 발명은 비디오 카세트 레코더에서 채널 반송파 주파수가 채널별로 상이한 텔레비전 방송 입력과 유선 방송 입력을 자동으로 인식하여 해당 방송에 대응하여 자동으로 채널을 선국할 수 있도록 한 비디오 카세트 레코더에서의 채널 자동 선국 방법에 관한 것으로서, 상기 유선 방송의 소정 채널로 동조시키는 제1단계와; 동조된 채널로 동기 신호가 검출되는지를 판단하는 제2단계와; 상기 동기 신호가 검출되면 카운터를 증가하고 동조된 채널 번호를 저장하는 제3단계와; 상기 제1, 2, 3단계를 상기 유선 방송의 소정 채널까지 반복 수행하고 상기 카운터의 값이 소정 값 이상이 되는지를 판단하는 제4단계와; 상기 카운터 값이 소정 값 이상이면 입력되는 방송 신호가 유선 방송으로 인식하여 나머지 유선 방송의 채널을 탐색하고, 소정 값 이하이면 입력되는 방송 신호가 텔레비전 방송으로 인식하여 텔레비전 방송의 채널을 탐색하여 채널을 선국하는 제5단계를 포함하여, 사용자가 일일이 안테나(텔레비젼 방송)/케이블(유선 방송) 선택을 하는 불편함을 해소할 수 있는 효과가 있다.The present invention relates to a channel automatic tuning method of a video cassette recorder in which a video cassette recorder automatically recognizes a television broadcast input and a cable broadcast input having different channel carrier frequencies for each channel and automatically tunes a channel corresponding to the corresponding broadcast. A first step of tuning a predetermined channel of the cable broadcasting; Determining whether a synchronization signal is detected in the tuned channel; A third step of incrementing a counter and storing a tuned channel number when the synchronization signal is detected; A fourth step of repeatedly performing the first, second, and third steps to a predetermined channel of the cable broadcasting and determining whether a value of the counter is equal to or greater than a predetermined value; If the counter value is greater than or equal to a predetermined value, the input broadcast signal is recognized as cable broadcasting to search for the remaining cable channels. If the counter value is less than or equal to the predetermined value, the input broadcasting signal is recognized as television broadcasting. Including the fifth step of tuning, there is an effect that the user can alleviate the inconvenience of selecting an antenna (TV broadcast) / cable (wired broadcast).
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명에 따른 비디오 카세트 레코더에서의 채널 자동 선국 과정을 도시한 흐름도.2 is a flowchart illustrating a channel automatic tuning process in a video cassette recorder according to the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950037528A KR970023074A (en) | 1995-10-27 | 1995-10-27 | Automatic channel tuning for video cassette recorders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950037528A KR970023074A (en) | 1995-10-27 | 1995-10-27 | Automatic channel tuning for video cassette recorders |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970023074A true KR970023074A (en) | 1997-05-30 |
Family
ID=66584669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950037528A KR970023074A (en) | 1995-10-27 | 1995-10-27 | Automatic channel tuning for video cassette recorders |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970023074A (en) |
-
1995
- 1995-10-27 KR KR1019950037528A patent/KR970023074A/en not_active Application Discontinuation
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |