KR970063178A

KR970063178A - Processing method of RF reception sensitivity control using horizontal synchronization signal

Info

Publication number: KR970063178A
Application number: KR1019960004271A
Authority: KR
Inventors: 정병철
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1996-02-23
Filing date: 1996-02-23
Publication date: 1997-09-12

Abstract

본 발명은 브이시알 방송수신 장치의 채널선국 수단에 관한 것으로서, 종래에는 이러한 시스템의 방송수신장치를 이용할 때 비교적 수신상태가 나쁜 지역 등에서는 사용자가 요구하는 채널이 제대로 선국되지 않기 때문에 이러한 시스템 이용의 불편을 피하기 어려운 것이었다.The present invention relates to channel selection means of a viral broadcast receiving apparatus, and in the related art, when a broadcast receiving apparatus of such a system is used, a channel requested by a user is not properly tuned in an area with a relatively poor reception status, It was difficult to avoid the inconvenience.

본 발명은 종래의 이러한 문제점을 개선할 수 있도록 시스템에는 알에프 신호의 수신감도 제어처리 프로그램(100)이 탑재되어져 있으며, 이는 텔레비젼 방송의 복합영상신호를 수신처리하는 단계와, 수신된 복합영상신호 중에서 동기를 분리하여 수평동기 레벨을 제어한 후 동기신호수를 검출할 것인가 체크하는 단계와, 동기신호수를 계산하여 그것이 기준 갯수와 동일한가를 체크하는 단계와, 동기신호수가 기준갯수와 일치하면 선국작업을 수행하는 단계를 포함하는 일련의 처리과정을 갖는 방법으로 이뤄져 있는 수평동기 신호를 이용한 알에프 수신 감도 제어 처리방법을 제공하는데 있다.In order to solve the problems of the related art, the present invention is equipped with a reception sensitivity control processing program 100 for an RF signal, which includes receiving and processing a composite video signal of a television broadcast, A step of checking whether the number of synchronizing signals is detected after controlling the horizontal synchronizing level by separating the synchronizing signals, calculating the number of synchronizing signals and checking whether they are equal to the reference number or not; And a method of controlling an RF reception sensitivity control using a horizontal synchronizing signal.

Description

Processing method of RF reception sensitivity control using horizontal synchronization signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명의 시스템 회로 블록도.Figure 2 is a system circuit block diagram of the present invention.

제33도는 본 발명에 의한 수신감도 제어처리 프로그램의 실시예도.FIG. 33 shows an embodiment of a reception sensitivity control processing program according to the present invention. FIG.

Claims

A system for tuning a channel in a viral broadcast receiving apparatus including a system microprocessor, the system comprising a reception sensitivity control processing program (100) of an RF signal, comprising the steps of receiving and processing a composite video signal of a television broadcast A step of checking whether the number of synchronous signals is detected after controlling the horizontal synchronous level by separating the synchronous signals from the received composite video signals, calculating the number of synchronous signals and checking whether they are equal to the reference number, And a step of performing a channel selection operation when the number of received signals is equal to the number of received signals.

※ Note: It is disclosed by the contents of the first application.