发明名称 |
System zum Verarbeiten eines digitalen Videosignals mit einem Sperrfilter zum Beseitigen von Störungen zwischen gleichen Übertragungskanälen |
摘要 |
<p>A digital signal processing system for receiving and processing a high definition television signal, eg., in a Pulse Amplitude Modulation (PAM) format, includes a filter for rejecting interferer signals such as a narrowband continuous wave NTSC co-channel interferer. In an illustrated embodiment the rejection filter is a digital FIR filter (18) located after a (de)rotator (16) in a carrier recovery network (16, 20, 24, 26, 28). The filter exhibits a zero throughput delay bandpass response with attenuation notches for rejecting NTSC co-channel picture and chrominance baseband carrier frequencies. <IMAGE></p> |
申请公布号 |
DE69520549(D1) |
申请公布日期 |
2001.05.10 |
申请号 |
DE1995620549 |
申请日期 |
1995.11.14 |
申请人 |
THOMSON MULTIMEDIA, BOULOGNE |
发明人 |
STROLLE, CHRISTOPHER HUGH;JAFFE, STEVEN TODD |
分类号 |
H04N5/21;H04N5/44;H04N7/015;(IPC1-7):H04N5/21 |
主分类号 |
H04N5/21 |
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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