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Multi-mode radio frequency device

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A transponder device having multiple modes of operation, such as an active mode and a passive mode, wherein the modes of operation are selected in response to the strength of a received radio frequency signal. A communication system is also provided having a transceiver configured to transmit a radio frequency signal and to receive a responsive signal, and a transponder configured to operate in a plurality of modes and to activate modes of operation in response to the radio frequency signal. Ideally, each mode of operation is activated and deactivated independent of the other modes, although two or more modes may be concurrently operational.
Gilbert, Ronald W. (Morgan Hill, CA), Carrender, Curtis Lee (Morgan Hill, CA), Anderson, Gordon A. (Benton City, WA), Steele, Kerry D. (Kennewick, WA)
Battelle Memorial Institute (Richland WA)
10/ 762,585
January 21, 2004
[0001] This invention was made with U.S. Government support under Contract DE-AC06-76RL01830 awarded by the U.S. Department of Energy. The U.S. Government has certain rights in the invention.