KR970078509A

KR970078509A - Television receiver with automatic search function for 2x-speed broadcasting channel

Info

Publication number: KR970078509A
Application number: KR1019960016864A
Authority: KR
Inventors: 홍성준
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1996-05-18
Filing date: 1996-05-18
Publication date: 1997-12-12

Abstract

본 발명은 방송 주파수를 크게 2개의 밴드대역으로 분할하고 2개의 튜너가 각각 한쪽 대역씩을 맡아 동시에 챈러 검색을 실행함으로써 검색 속도를 2배로 향상시킬수 있도록 된 2배속 방송채널 자동 검색기능을 갖춘 텔레비젼 수상기에 관한 것으로, 주화면 방송선국을 위한 제1튜너와, 부화면 방송선국을 위한 제2튜너, 및 상기 제1튜너에 의해 선국된 방송신호로부터 영상신호를 검파하는 제1영상신호검파부와 제2튜너에 의해 선국된 방송신호로부터 영상신호를 검파하는 제2영상신호검파부를 구비한 텔레비젼 수상기에 있어서; 특정 주파수를 기준으로 기준주파수 보다 높은 하이 밴드대역의 주파수 데이터를 저장하는 제1채널 데이터 저장부와 상기 기준주파수 보다 낮은 로우 밴드대역의 주파수 데이터가 저장된 제2채널 데이터 저장부, 상기 제1영상신호 검파부로부터 출력되는 영상신호로부터 동기신호를 검출하는 제2동기신호검출부, 상기 제1, 제2동기신호검출부에 의해 동기신호가 검출된 유신호 방송채널에 대해 그 채널주파수를 저장하는 검색채널저장부, 및 상기 제1, 제2채널 데이터저장부에 저장된 주파수데이터를 근거로 채널검색을 실행함과 더불어 검색결과에 따른 상기 검색채널저장부의 채널데이터를 근거로 방송선국을 제어하는 제어부를 포함하여 구성된 것을 특징으로 한다.The present invention relates to a television receiver having a function of automatically searching for a 2 × -speed broadcast channel in which a broadcast frequency is divided into two band bands and two tuners are assigned to each band to perform a Chanter search at the same time, thereby doubling the search speed A first tuner for a main screen broadcast station selection, a second tuner for a sub-screen broadcast tuner, and a first video signal detector for detecting a video signal from a broadcast signal selected by the first tuner, A television receiver having a second video signal detector for detecting a video signal from a broadcast signal selected by a tuner; A first channel data storage unit for storing frequency data of a high band higher than a reference frequency on the basis of a specific frequency and a second channel data storage unit for storing frequency data of a low band band lower than the reference frequency, A second sync signal detector for detecting a sync signal from a video signal output from the detector, a search channel storage unit for storing a channel frequency of the sync signal detected by the first and second sync signal detectors, And a controller for performing a channel search based on the frequency data stored in the first and second channel data storage units and controlling the broadcast station based on the channel data of the search channel storage unit according to the search result, .

Description

Television receiver with automatic search function for 2x-speed broadcasting channel

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

제2도는 본 발명의 1실시예에 따른 2배속 방송채널 자동 검색기능을 갖춘 텔레비젼 수상기의 내부구성을 나타낸 블럭구성도.FIG. 2 is a block diagram showing an internal configuration of a television receiver equipped with a 2 × -speed broadcast channel automatic search function according to an embodiment of the present invention; FIG.

Claims

A first tuner for detecting a video signal from a broadcast signal selected by the first tuner and a second tuner for detecting a video signal from the broadcast signal selected by the first tuner, A television receiver having a second video signal detector for detecting a video signal from a selected broadcast signal, the television receiver comprising: A first channel data storage unit for storing frequency data of a high band higher than a reference frequency on the basis of a specific frequency and a second channel data storage unit for storing frequency data of a low band band lower than the reference frequency, A first synchronous signal detecting section for detecting a synchronous signal from a video signal outputted from a detecting section, a second synchronous signal detecting section for detecting a synchronous signal from a video signal outputted from the second video signal detecting section, A search channel storage unit for storing the channel frequency of the outgoing-and-cane broadcast channel in which the synchronization signal is detected by the signal detection unit, and a channel search unit for performing channel search based on the frequency data stored in the first and second channel data storage units, And a control unit for controlling the broadcast station based on the channel data of the search channel storage unit according to the search result Which is capable of automatically searching for a 2 × -speed broadcast channel.

The apparatus of claim 1, further comprising: an OSD pattern storage unit for storing predetermined OSD pattern data for providing a search progress process and a guide screen search result by the automatic search function of a broadcast channel; And an OSD generator for outputting R, G, B and a blanking signal Y 'to the channel search guide screen based on the read data, and the controller is configured to output a search progress status and a search result guide screen output And a predetermined control signal for the 2 × -speed broadcast channel is automatically outputted.

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