KR970031886A

KR970031886A - Broadcast channel auto search method

Info

Publication number: KR970031886A
Application number: KR1019950044517A
Authority: KR
Inventors: 방진용
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-11-29
Filing date: 1995-11-29
Publication date: 1997-06-26

Abstract

본 발명은 텔레비전 또는 비디오 카세트 레코더의 자동탐색기능에 관한 것으로서, 특히 자동탐색시에 불필요한 방송신호가 약전계에 의해 수신되어 메모리되는 불필요한 채널을 삭제하여 번거러운 채널 메모리기능을 하지 않아도 되는 방송채널의 자동탐색방법에 관한 것이다. 본 발명은 키입력부(10)로 전달되는 신호를 감지하여 제1TV탐색모드인지 판단하여 제1TV탐색모드가 아니면 제2TV탐색모드인지 판단하는 제1단계와, 상기 제1단계에서 제1TV탐색모드이면 채널데이터를 출력하고 복합영상신호의 수신횟수가 일정횟수인지 판단하고 일정횟수이면 윈도우 검출이 있는지 판단하는 제2단계와, 상기 제2단계에서 윈도우 검출이 있으면 채널방송신호를 메모리하고 다음 채널의 방송신호가 있는지 판단하는 제3단계와, 상기 제1단계에서 제2TV탐색모드이면 상기 제3계에서 메모리된 채널데이터를 출력하여 복합영상신호의 수신횟수가 일정횟수(60±3회)인지 판단하는 제4단계와, 상기 제4단계에서 복합영상신호의 수신횟수가 일정횟수이면 윈도우를 검출하고, 일정횟수가 아니면 주파수를 변환하여 복합영상신호의 수신횟수가 일정횟수(60±3회)인지 판단하는 제5단계와, 상기 제5단계에서 복합영상신호의 수신횟수가 일정횟수가 아니면 방송신호를 삭제하고 일정횟수이면 윈도우 검출을 판단하여 선정된 방송신호를 메모리하고 다음채널의 방송신호가 있는지 판단하는 제6단계로 이루어지는 것을 특징으로 하여 약전계 채널의 방송신호를 제거할 수 있어 보다 정확한 채널의 방송신호를 수신할 수 있으며, 별도의 번거러운 채널메모리기능을 거치지 않아도 되는 편의성이 있는 기술에 관한 것이다.The present invention relates to an automatic search function of a television or a video cassette recorder. In particular, the automatic search of a broadcast channel that does not have to perform a cumbersome channel memory function by deleting unnecessary channels in which unnecessary broadcast signals are received and memorized by a weak electric field during the automatic search. It relates to a search method. The present invention detects the signal transmitted to the key input unit 10 to determine whether the first TV search mode and the first TV search mode or the second TV search mode, and if the first TV search mode in the first step A second step of outputting channel data, determining whether the composite video signal is received at a predetermined number of times, and determining whether there is a window detection at a predetermined number of times; and if there is a window detection at the second step, storing the channel broadcast signal and broadcasting the next channel. The third step of determining whether there is a signal, and if the second TV search mode in the first step is to output the channel data memorized in the third system to determine whether the number of reception of the composite video signal is a certain number (60 ± 3 times) In the fourth step and the fourth step, if the number of reception of the composite video signal is a certain number of times, the window is detected. A fifth step of determining whether the number is 60 ± 3 times; if the number of reception of the composite video signal is not a predetermined number in the fifth step, the broadcasting signal is deleted. And a sixth step of judging whether there is a broadcast signal of the next channel, so that the broadcast signal of the weak electric field channel can be removed, so that the broadcast signal of a more accurate channel can be received, and a separate cumbersome channel memory function is not provided. It relates to a technology that is convenient.

Description

Broadcast channel auto search method

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

제1도는 본 발명에 따른 방송채널의 자동탐색의 구성을 개략적으로 도시한 도면.1 is a diagram schematically showing a configuration of automatic search of a broadcast channel according to the present invention.

Claims

In the broadcast channel search method of a television or video cassette recorder, the first step of detecting a signal transmitted to the key input unit 10 to determine whether the first TV search mode, the first TV search mode or the second TV search mode, A second step of outputting channel data in the first TV search mode in the first step and determining whether the number of reception of the composite video signal is a predetermined number (60 ± 5 times); A third step of memorizing the channel broadcast signal and determining whether there is a broadcast signal of the next channel if there is a window detection in the step; and outputting the channel data memorized in the third system in the second TV search mode in the first step. A fourth step of determining whether the number of reception of the signal is a predetermined number (60 ± 3 times); and if the number of reception of the composite video signal is a certain number of times in the fourth step, detecting a window A fifth step of determining whether the number of reception of the composite video signal is a predetermined number (60 ± 3 times) by converting a frequency or the frequency is deleted; And a sixth step of determining window detection to store a selected broadcast signal and determining whether there is a broadcast signal of a next channel.

The method of claim 1, wherein in the second step, if the number of reception of the composite video signal does not fall within a predetermined number of times, the frequency conversion is performed to determine whether the reception of the composite video signal is a certain number of times. If the frequency of receiving the composite video signal is not a certain number of times, the broadcast signal is deleted. If the predetermined number of times, the broadcast is characterized in that the eighth step of determining whether there is a broadcast signal of the next channel to store the selected broadcast signal by determining the window detection Channel auto search method.

※ Note: The disclosure is based on the initial application.