发明名称 |
Method and systems for analyzing the quality of high-speed signals |
摘要 |
Methods and systems for analyzing the quality of high-speed signals are provided, wherein a high speed signal is sampled simultaneously a plurality of times during a sampling clock period at each of a plurality of phase rotator positions to generate a plurality of partial values, wherein subset pluralities of the partial values are associated to phase rotator positions. The partial values are combined into a global value which is analyzed to determine a quality of the high speed signal. Phase rotator behavior may also be analyzed to determine signal quality. A best position to lock a phase rotator when determining signal quality may be determined from a graphic characterization of a phase rotator position distribution.
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申请公布号 |
US7477685(B2) |
申请公布日期 |
2009.01.13 |
申请号 |
US20070774572 |
申请日期 |
2007.07.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BLANC ALAIN;JEANNIOT PATRICK |
分类号 |
H04B3/46;H04L1/20;H04Q1/20 |
主分类号 |
H04B3/46 |
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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