Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 8, 2008
0Patent Application Number
115574320
Date Filed
November 7, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Discriminating between a cable locating signal and a false cable locating signal is described. A reference signal, which contains a locating signal frequency impressed on it, is transmitted in a way which provides for detection of a phase shift between the locating signal and the false locating signal. Based on the phase shift, a receiver is used to distinguish the locating signal from the false locating signal.
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