Invention Grant
- Patent Title: Fast cable tester
- Patent Title (中): 快速电缆测试仪
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Application No.: US12897813Application Date: 2010-10-05
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Publication No.: US07986147B1Publication Date: 2011-07-26
- Inventor: William Lo
- Applicant: William Lo
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: G01R31/11
- IPC: G01R31/11 ; G01R31/02

Abstract:
A physical layer (PHY) device including a first transmitter, a first analog-to-digital converter (ADC) module, and a control module. The first transmitter is configured to transmit a first pulse on a first conductor of a first pair of conductors of a cable. The first ADC module is configured to generate a first set of outputs, in response to the transmission of the first pulse, by sampling an input from a second conductor of the first pair of conductors a plurality of times at a predetermined time interval. The control module is configured to determine a first distance from the PHY device to (i) an open-circuit, (ii) a short-circuit, or (iii) a termination of the first pair of conductors based on the first set of outputs.
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