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Research Electronics International Patents
Assignee:
Research Electronics International
Address:
Algood, TN
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
7808226 Line tracing method and apparatus utilizing non-linear junction detecting locator probe October 5, 2010
A method, device, and apparatus for tracing a conductive line and locating any concealed surveillance devices coupled to the line uses a signal generator to produce a test signal having a fundamental frequency which is coupled to the line under test. The test signal flowing through the
6397154 Correlation method for surveillance device detection May 28, 2002
A new correlation process and implementing apparatus for use in detecting the presence and location of a concealed eavesdropping device is disclosed in the present application. The process correlates a demodulated intercepted signal with a reference signal that corresponds to the sounds
6163259 Pulse transmitting non-linear junction detector December 19, 2000
A non-linear junction detector designed for counter surveillance measures achieves superior performance by transmitting a series of pulses and receiving harmonics of the transmitted pulse signals that are re-radiated by a non-linear junction such as would be found in an eavesdropping dev
6057765 Non-linear junction detector May 2, 2000
A non-linear junction detector designed for counter surveillance measures achieves superior performance by using a single circularly polarized antenna to transmit a signal and to receive harmonics of the transmitted signal that are re-radiated by a non-linear junction such as would be

 
 
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