| http://www.w3.org/ns/prov#value | - The test signal is generally low frequency compared to normal data...http://www.google.com/patents/US7631230?utm_source=gb-gplus-sharePatent US7631230 - Method and apparatus for testing a transmission pathAdvanced Patent SearchPublication numberUS7631230 B2Publication typeGrantApplication numberUS 10/993,387Publication dateDec 8, 2009Filing dateNov 19, 2004Priority dateNov 19, 2004Fee statusPaidAl
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