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Dual frequency transceiver device

United States Patent

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April 20, 2021
View the Complete Patent at the US Patent & Trademark Office
A transceiver device for receiving an interrogation signal at a first carrier frequency and for transmitting a response signal at a second carrier frequency is disclosed. The interrogation signal comprises the first carrier frequency modulated at the second carrier frequency. The communication device includes a sensor coupled to a demodulator. The sensor receives a low frequency input used to further modulate the interrogation signal. The demodulator demodulates the low frequency input from the first carrier frequency to thereby generate the response signal comprising the second carrier frequency and the low frequency input. The demodulator preferably includes a pyroelectric demodulator, a piezoelectric demodulator, or a detector diode. The demodulator preferably has a frequency response less than the first carrier frequency but greater than the second carrier frequency.
16/ 110,442
August 23, 2018
G06K 19/07 (20060101)H01L 41/187 (20060101)H03H 1/00 (20060101)H03D 3/34 (20060101)H03D 1/10 (20060101)H01L 37/02 (20060101)G06K 19/067 (20060101)H03H 9/56 (20060101)H03H 9/64 (20060101)H03D 1/00 (20060101)H01L 41/39 (20130101)G06K 7/10 (20060101)H04L 27/06 (20060101)
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.