Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2006-04-04
2006-04-04
Horabik, Michael (Department: 2635)
Communications: electrical
Selective
Interrogation response
C342S051000
Reexamination Certificate
active
07023323
ABSTRACT:
A system and method for interrogating a passive acoustic transponder, producing a transponder signal having characteristic set of signal perturbations in response to an interrogation signal, comprising a signal generator, producing an interrogation signal having a plurality of differing frequencies; a receiver, for receiving the transponder signal; a mixer, for mixing the transponder signal with a signal corresponding to the interrogation signal, to produce a mixed output; an integrator, integrating the mixed output to define an integrated phase-amplitude response of the received transponder signal; and an analyzer, receiving a plurality of integrated phase-amplitude responses corresponding to the plurality of differing frequencies, for determining the characteristic set of signal perturbations of the passive acoustic transponder.
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Bangachon William
Horabik Michael
Thelen Reid & Priest LLP
X-Cyte Inc.
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