发明授权
- 专利标题： Cable tester
- 专利标题（中）： 电缆测试仪
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申请号： US10979302申请日： 2004-11-02
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公开(公告)号： US06982557B1公开(公告)日： 2006-01-03
- 发明人: William Lo , Yiqing Guo , Tak Tsui , Tsin-Ho Leung , Runsheng He , Eric Janofsky
- 申请人： William Lo , Yiqing Guo , Tak Tsui , Tsin-Ho Leung , Runsheng He , Eric Janofsky
- 申请人地址： BM Hamilton
- 专利权人： Marvell International, Ltd.
- 当前专利权人： Marvell International, Ltd.
- 当前专利权人地址： BM Hamilton
- 主分类号： G01R31/02
- IPC分类号： G01R31/02
摘要：
A physical layer device according to some implementations includes a cable tester that generates a test pulse on a cable and that determines a cable status including an open status, a short status, and a normal status. A cable impedance estimator communicates with the cable tester and estimates an impedance of the cable based on a reflection amplitude of the test pulse.
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