发明名称 |
Systems, circuits and methods for filtering signals to compensate for channel effects |
摘要 |
Transmitter waveform dispersion penalty ("TWDP") is decreased in a transmitter. A binary data signal is received for transmission over a channel that exhibits TWDP. The data signal is shifted less than a full clock cycle to generate at least one post cursor signal. The post cursor signal is subtracted from the data signal to generate a transmitter output data signal for transmission over the channel. In addition to decreasing TWDP, data dependent jitter is also reduced for data transmission across a channel that exhibits a multi-pole transmission characteristic. A main data signal and at least one cursor signal, which is shifted at least a portion of a clock period from the main data signal, is generated. The cursor signal is filtered to filter out effects based on the second pole of the multi-pole transmission characteristic. The main data signal is subtracted from the filtered cursor signal to generate the transmitter output data signal. Circuits and methods for transmitting serial data streams over a channel compliant with KR and SPI specifications are also disclosed.
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申请公布号 |
US8537949(B1) |
申请公布日期 |
2013.09.17 |
申请号 |
US20100828153 |
申请日期 |
2010.06.30 |
申请人 |
CIRIT HALIL;SIDIROPOULOS STEFANOS;NETLOGIC MICROSYSTEMS, INC. |
发明人 |
CIRIT HALIL;SIDIROPOULOS STEFANOS |
分类号 |
H04L7/00 |
主分类号 |
H04L7/00 |
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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