发明公开
EP1197080A1 METHOD AND APPARATUS FOR PROVIDING DUAL AUTOMATIC GAIN CONTROL DELAY SETTINGS IN A TELEVISION RECEIVER
有权
DEVICE AND METHOD FOR PROVIDING双自动增益控制的延迟设置电视接收机
- 专利标题： METHOD AND APPARATUS FOR PROVIDING DUAL AUTOMATIC GAIN CONTROL DELAY SETTINGS IN A TELEVISION RECEIVER
- 专利标题（中）： DEVICE AND METHOD FOR PROVIDING双自动增益控制的延迟设置电视接收机
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申请号： EP00948656.4申请日： 2000-07-13
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公开(公告)号： EP1197080A1公开(公告)日： 2002-04-17
- 发明人: HUTCHINSON, Daniel, Mark , GRUBBS, Gary, Dean , MAYER, Matthew, Thomas , HARO, Ricardo
- 申请人： Thomson Licensing S.A.
- 申请人地址： 46, quai Alphonse Le Gallo 92648 Boulogne Cedex FR
- 专利权人： Thomson Licensing S.A.
- 当前专利权人： Thomson Licensing S.A.
- 当前专利权人地址： 46, quai Alphonse Le Gallo 92648 Boulogne Cedex FR
- 代理机构： Bonnans, Arnaud
- 优先权： US144423P 19990716
- 国际公布： WO0106777 20010125
- 主分类号： H04N5/52
- IPC分类号： H04N5/52
摘要：
The present invention provides a method and apparatus for processing a received television signal comprising one of a first type of television signal and a second type of television signal. Specifically, the method comprises amplifying said received television signal in response to a control signal. If the received television signal comprises the first type of television signal, the RF amplifier gain is reduced when said received television signal exceeds a first signal level. If the received television signal comprises the second type of television signal, the RF amplifier gain is reduced when said received television signal exceeds a second signal level. The second signal level is greater than said first signal level. A concomitant apparatus is also provided. As the first signal level is lower for the first type of television signal, reception of the first type of television signal is improved.
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