发明名称 |
BLIND EQUALIZER FOR A VESTIGIAL SIDEBAND SIGNAL |
摘要 |
<p>A television signal receiver for processing an HDTV signal transmitted in a vestigial sideband (VSB) format with a one-dimensional data constellation includes a first carrier recovery network (18), an equalizer (20), and a second carrier recovery network (22, 30, 62). A multiple stage quantizer network (50, 66) exhibiting progressively finer resolution is associated with the operation of the equalizer for providing blind equalization without need of a "training" signal. The second carrier recovery network includes a phase detector (30) wherein a one-symbol delayed (312) input signal and a quantized (310) input signal are multiplied (316), and an unquantized input signal and a quantized (310) one-symbol delayed (314) input signal are multiplied (318). Signals produced by the multiplication are subtractively combined (320) to produce an output signal representing a carrier phase error.</p> |
申请公布号 |
WO9526075(A1) |
申请公布日期 |
1995.09.28 |
申请号 |
WO1995US03132 |
申请日期 |
1995.03.13 |
申请人 |
RCA THOMSON LICENSING CORPORATION;STROLLE, CHRISTOPHER, HUGH;JAFFE, STEVEN, TODD |
发明人 |
STROLLE, CHRISTOPHER, HUGH;JAFFE, STEVEN, TODD |
分类号 |
H04N7/04;H03D1/24;H04L25/03;H04L25/06;H04L27/01;H04L27/02;H04L27/06;H04N5/21;H04N5/44;H04N5/455;H04N7/045;(IPC1-7):H03H7/30;H03H7/40 |
主分类号 |
H04N7/04 |
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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