发明名称 |
Jitter measuring method and device |
摘要 |
A jitter measuring method and device, which is capable of measuring jitters in serial digital signal without high-frequency reference clock. The jitter measuring device comprises a rough length measuring unit for measuring rough length for each pulse of the serial digital signal according to a reference clock, and a phase error measuring unit for measuring the phase errors between the edges of the reference clock and the serial digital signal by multi-phase clocks, which are generated by a multi-phase generator according to the reference clock. The jitter measuring device computes the precise length according to the rough length and the phase error, and measures the jitters from the precise length by filters.
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申请公布号 |
US2003215037(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
US20030438823 |
申请日期 |
2003.05.16 |
申请人 |
CHAO MING-YANG;LO SZU-SHAN |
发明人 |
CHAO MING-YANG;LO SZU-SHAN |
分类号 |
G01R29/26;H04L1/20;(IPC1-7):H04L7/00;H04L25/00;H04L25/40 |
主分类号 |
G01R29/26 |
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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