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61. 发明授权

US07012436B1 Cable tester 有权
标题翻译：电缆测试仪
公开(公告)号：US07012436B1
公开(公告)日：2006-03-14
申请号：US11093101
申请日：2005-03-29
申请人： Donald Pannell , William Lo , Yiqing Guo
发明人： Donald Pannell , William Lo , Yiqing Guo
IPC分类号： G01R31/02
CPC分类号： G01R31/083 , G01R31/088 , G01R31/11
摘要： A physical layer device is adapted to communicate with a cable medium and communicates with an indicator. The physical layer device includes a first input/output terminal, a first transceiver that communicates with the first input/output terminal that is adapted to be connected to a cable medium, and a cable tester that tests the cable medium and determines a cable status using a pretest module. The pretest module senses activity on the cable medium and enables testing if activity is not detected for a first period, and a test module that is enabled by said pretest module, transmits a test pilse on the cable medium, measures a reflection amplitude and calculates a cable length. The cable tester determines the cable status based on the measured amplitude and the calculated cable length, and the indicator indicates at least one of cable testing status during the test and the cable status after the trst. The indicator also inducates at least one of link presence, link absence, link acitivty, link duplex and link speed of the first input/output terminal during normal operation.
摘要翻译：物理层设备适于与电缆介质通信并与指示器通信。物理层设备包括第一输入/输出端子，与适于连接到电缆介质的第一输入/输出端子通信的第一收发器，以及测试电缆介质并且使用一个预测试模块。预测试模块感测电缆介质上的活动，并且能够测试在第一时间段内是否没有检测到活动，并且由所述预测试模块启用的测试模块在电缆介质上传送测试薄片，测量反射幅度并计算电缆长度。电缆测试仪根据测量的幅度和计算出的电缆长度来确定电缆状态，并且指示灯表示测试期间的电缆测试状态和trst之后的电缆状态中的至少一个。该指示器还在正常操作期间引入第一输入/输出端子的链路存在，链路缺失，链路活动性，链路双工和链路速度中的至少一个。

62. 发明授权

US07002354B1 Cable tester 有权
标题翻译：电缆测试仪
公开(公告)号：US07002354B1
公开(公告)日：2006-02-21
申请号：US10967602
申请日：2004-10-18
申请人： Donald Pannell , William Lo , Yiqing Guo
发明人： Donald Pannell , William Lo , Yiqing Guo
IPC分类号： G01R31/11
CPC分类号： G01R31/083 , G01R31/088 , G01R31/11
摘要： A physical layer device that is adapted to communicate with a cable medium and that includes an indicator comprises a first input/output terminal and a first transceiver that communicates with the first input/output terminal that is adapted to be connected to the cable medium. A detector detects a power over Ethernet (POE) device. A switching device selectively provides power from a power supply over the cable medium when the detector detects the POE device. A cable tester communicates with the first transceiver, tests the cable medium and determines a cable status, and delays testing of the cable medium when the detector detects the POE device until the switching device provides the power. The indicator indicates at least one of cable testing status during the test and the cable status after the test.
摘要翻译：适于与电缆介质通信并且包括指示符的物理层设备包括与适于连接到电缆介质的第一输入/输出终端通信的第一输入/输出终端和第一收发器。检测器检测以太网供电（POE）设备。当检测器检测到POE设备时，开关设备选择性地通过电缆介质从电源提供电力。电缆测试器与第一收发器通信，测试电缆介质并确定电缆状态，并且当检测器检测到POE设备直到交换设备提供电源时，延迟对电缆介质的测试。该指示器表示测试期间的电缆测试状态和测试后的电缆状态中的至少一个。

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