Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-04-03
2007-04-03
Trieu, Van T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572400, C340S010100
Reexamination Certificate
active
10992966
ABSTRACT:
An RFID circuit comprises an RF carrier signal source, a hybrid coupled to the RF carrier signal source operable to generate an in-phase and a quadrature phase component of the RF carrier signal, a switch coupled to the hybrid operable to pass one of the in-phase and quadrature phase components of the RF carrier signal to its output, and a mixer coupled to the output of the switch operable to multiply one of the in-phase and quadrature phase component of the carrier signal and a received modulated carrier signal and generate a baseband signal.
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International Search Report and Written Opinion of the International Searching Authority mailed Mar. 15, 2006 for PCT Application No. PCT/US2005/040848, 12 pages.
Barink Bernard
Bishop Gary M.
d'Hont Loek J.
Havlicek Gregory G.
Haynes and Boone LLP
Sirit Technologies Inc.
Trieu Van T.
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