发明名称 |
APPARATUS AND METHOD FOR PROVIDING AUTOMATIC GAIN CONTROL |
摘要 |
<p>Signal processing apparatus ( 100 ) such as a television signal receiver provides automatic gain control (AGC) in a manner that avoids excessive tuner gain reduction and compensates for interference from both analog and digital signals. According to an exemplary embodiment, the signal processing apparatus ( 100 ) includes a tuner ( 10 ) operative to tune an RF signal to generate an IF signal. A first filter ( 20 ) is operative to filter the IF signal to generate a filtered IF signal. An AGC detector ( 30 ) is operative to enable generation of an AGC signal for the tuner ( 10 ) responsive to the filtered IF signal. The AGC detector ( 30 ) includes a second filter ( 35 ) operative to attenuate a predetermined carrier frequency.</p> |
申请公布号 |
EP1738581(A1) |
申请公布日期 |
2007.01.03 |
申请号 |
EP20040814083 |
申请日期 |
2004.12.14 |
申请人 |
THOMSON LICENSING |
发明人 |
MUTERSPAUGH, MAX, WARD;MAYER, MATTHEW, THOMAS |
分类号 |
H04N5/52;H04N5/44;H04N5/46 |
主分类号 |
H04N5/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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