发明名称 |
CO-CHANNEL INTERFERENCE REDUCTION SYSTEM FOR DIGITAL HIGH DEFINITION TELEVISION |
摘要 |
A co-channel interference reduction system for digital high definition television includes a transmitter having a modulo 4 processing precode filter. A receiver includes a pair of selectable video processing modes. The first mode provides a comb filter for removing co-channel interference signals together with a modulo 4 interpreter for restoring the four level data signal despite the intersymbol interference signal introduced by the comb filter segment. In the alternate mode operable in the absence of co-channel interfering signals, a level slicer and postcoder are used to restore the precoded signal to the original four level data signal. |
申请公布号 |
KR0142584(B1) |
申请公布日期 |
1998.07.15 |
申请号 |
KR19930071132 |
申请日期 |
1993.04.16 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
CITTA, RICHARD W.;EILERS, CARL G. |
分类号 |
H04B1/12;H04B15/00;H04N5/21;H04N5/44;H04N7/24;(IPC1-7):H04N5/21 |
主分类号 |
H04B1/12 |
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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