发明名称 |
Digital transmitter |
摘要 |
An equalizer provided in a digital transmitter compensates for attenuation in a signal channel to a digital receiver. The equalizer generates signal levels as a logical function of bit history to emphasize transition signal levels relative to repeated signal levels. The preferred equalizer includes an FIR transition filter using a look-up table. Parallel circuits including FIR filters and digital-to-analog converters provide a high speed equalizer with lower speed circuitry. The equalizer is particularly suited to in-cabinet and local area network transmissions where feedback circuitry facilitates adaptive training of the equalizer.
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申请公布号 |
US8238470(B2) |
申请公布日期 |
2012.08.07 |
申请号 |
US201113090507 |
申请日期 |
2011.04.20 |
申请人 |
DALLY WILLIAM J.;MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
DALLY WILLIAM J. |
分类号 |
H04L27/04;H03H7/30;H03K5/156;H04L25/03;H04L27/00 |
主分类号 |
H04L27/04 |
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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