KR930024301A

KR930024301A - Automatic Tuning Method of Phase Synchronous Loop Tuner

Info

Publication number: KR930024301A
Application number: KR1019920009220A
Authority: KR
Inventors: 강성묵
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-05-28
Filing date: 1992-05-28
Publication date: 1993-12-22

Abstract

본 발명은 위상동기루프(PLL) 튜너의 자동선국에 관한 것으로, 특히 방송신호가 큰 채널들을 선택하여 주파수가 낮은 채널부터 높은 채널의 순서로 프리세트단자의 낮은 번호부터 높은 번호에 각각의 채널을 자동기억(Auto Storage)시키는 위상동기루프 튜너의 자동선국방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automatic tuning of a phase locked loop (PLL) tuner, and in particular, selects channels with a large broadcast signal and assigns each channel to a low to high number of preset terminals in order of low to high channels. The present invention relates to an automatic tuning method of a phase locked loop tuner for automatic storage.

오토 스토아(A.S)버튼이 입력되면, 전 주파수를 1회 스캔닝하는 주파수 스캔닝단계와, 방송신호가 큰 신호를 선택하는 채널 선택단계와, 그 선택된 방송신호를 주파수가 낮은 방송국부터 주파수가 높은 방송국 순으로 분류하는 주파수 분류단계와, 그 주파수 분류단계에서 분류된 순서에 의해 제일 낮은 주파수의 방송국 채널부터 높은 주파수의 방송국 채널 순서에 대응되게 프리세트 ①번단자부터 차례로 증가시키면서 기억시키는 채널 순차기억 단계와를 순차적으로 수행하도록 이루어진다.When the auto store (AS) button is input, a frequency scanning step of scanning all frequencies once, a channel selection step of selecting a signal having a large broadcast signal, and the selected broadcast signal starting from a broadcasting station having a low frequency Frequency sequential memory classifying in order of broadcasting stations and channel sequential memory to be stored in increasing order from preset terminal 1 in order to correspond to the order of the lowest frequency broadcasting station channel to the highest frequency broadcasting channel according to the sorting order in the frequency classifying step Steps are performed sequentially.

Description

Automatic Tuning Method of Phase Synchronous Loop Tuner

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

제4도는 본 발명에 의한 위상동기루프 튜너의 자동기억 방법을 보인 제어흐름도, 제5도는 본 발명에 의한 위상동기루프 튜너의 자동기억 방법에 의해서 기억되는 순서를 설명하기 위한 설명도.4 is a control flow chart showing an automatic storage method of a phase locked loop tuner according to the present invention, and FIG. 5 is an explanatory diagram for explaining a procedure stored by the automatic storage method of a phase locked loop tuner according to the present invention.

Claims

When the auto store button is input, a frequency scanning step of scanning all frequency bands once, starting from the lowest frequency of the corresponding band, and a broadcasting signal of a channel having a larger signal level among the broadcasting signals scanned in the scanning step A channel selection step of selecting a predetermined number of channels, a frequency classification step of classifying the broadcast signal selected in the channel selection step from a low-frequency broadcasting station to a high-frequency broadcasting station, and a lowest frequency in the order classified in the frequency classification step. And a channel sequential memory step of sequentially increasing and storing the channels from the preset terminal 1 in order to correspond to the sequence of the channels of the high frequency broadcasting stations.

The method of claim 1, wherein the automatic tuning method of the phase-locked loop tuner comprises: a stored channel display step of displaying a predetermined time on the LCD from the channel of the first broadcast station stored after the channel sequential storage step to the channel of the last broadcast station; And displaying the channel of the broadcasting station stored in the preset # 1 terminal on the LCD after the stored channel display step.

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