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电视机接收信号调谐指示方法

申请公布号:CN101212610A

申请号:CN200610157800.X

申请日期:2006.12.29

申请公布日期:2008.07.02

申请人:
康佳集团股份有限公司

发明人:陶显芳

分类号:H04N5/50(2006.01);H04N5/44(2006.01);H04N5/445(2006.01)

主分类号:H04N5/50(2006.01)

代理机构:
深圳市科吉华烽知识产权事务所

代理人:胡吉科

地址:518053广东省深圳市南山区华侨城

摘要:本发明涉及一种电视机接收信号调谐指示方法,其包括以下步骤:设置一个鉴频电路,或采用电视机自动频率微调电路中的鉴频电路,通过该鉴频电路或电视机自动频率微调电路中的鉴频电路测得电视机对应于接收高频信号频率的电压;将电视机接收的高频信号频率对应的鉴频电路幅/频特性(电压幅度/频率特性)输出电压幅值显示在屏幕上,并依此判断电视机接收信号频率是否准确调谐。本发明把鉴频电路输出对应于电视机接收高频信号频率的电压幅值在电视机屏幕上显示,人们就可以很直观地通过电视机屏幕显示,知道电视机接收信号频率的高低,准确判断出是否处在最佳工作状态,从而实现电视机在调台时准确地调谐在中心频率上,使电视机图像达到最清晰。

主权项:1.一种电视机接收信号调谐指示方法,其包括以下步骤:设置一个鉴频电路,或采用电视机自动频率微调电路中的鉴频电路,通过该鉴频电路或电视机自动频率微调电路中的鉴频电路测得电视机接收高频信号频率对应的电压;将电视机接收的高频信号频率对应的鉴频电路幅/频特性(电压幅度/频率特性)输出电压幅值显示在电视机屏幕上,并依此判断电视机接收信号频率是否准确调谐。

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