Method and apparatus for testing a transmission path

Details Method and apparatus for testing a transmission path Method and apparatus for testing a transmission path

2004-11-19

2009-12-08

Kerveros, James C (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Transmission facility testing

C324S538000

Reexamination Certificate

active

07631230

ABSTRACT:
One embodiment of the invention provides apparatus and a method for testing a transmission path across one or more printed circuit boards. According to the method, a test signal is presented at a first location on the transmission path. The test signal is generally low frequency compared to normal data communications on the transmission path. A pickup line is capacitively coupled at a second location to the transmission path. The pickup line is monitored with a detector to see whether or not the test signal is present. If the test signal is not present, it is determined that there is a fault on the transmission path between the first location and the second location.

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Combined Search and Examination Report under Sections 17 and 18(3), Application No. GB 0503641.3, Jul. 18, 2005, 6 pages.

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