Invention Grant
- Patent Title: Distinguishing false signals in cable locating
- Patent Title (中): 区分电缆定位中的虚假信号
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Application No.: US12512853Application Date: 2009-07-30
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Publication No.: US07884610B2Publication Date: 2011-02-08
- Inventor: John E. Mercer , Albert W. Chau
- Applicant: John E. Mercer , Albert W. Chau
- Applicant Address: US WA Kent
- Assignee: Merlin Technology, Inc.
- Current Assignee: Merlin Technology, Inc.
- Current Assignee Address: US WA Kent
- Agency: Pritzkau Patent Group, LLC
- Main IPC: G01V3/11
- IPC: G01V3/11
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.
Public/Granted literature
- US20090289634A1 Distinguishing False Signals in Cable Locating Public/Granted day:2009-11-26
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