Method and apparatus for remotely identifying an electronically

Details Method and apparatus for remotely identifying an electronically Method and apparatus for remotely identifying an electronically

1997-12-10

1999-03-16

Pihulic, Daniel T.

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Unique identity

H04Q 700

Patent

active

058835920

ABSTRACT:
Apparatus, and a concomitant method of operation for the apparatus, for responding to an interrogation signal transmitted by a remotely located interrogator comprising: a demodulator for demodulating the interrogation signal; a signal processor, coupled to the demodulator, for interpreting a set up instruction contained in the interrogation signal and for initiating a counter to count cycles of a carrier wave signal contained in the interrogation signal; and a modulator, coupled to the signal processor, for transmitting a pulse when the signal processor indicates that the counter has attained a count value that matches a codeword stored in the signal processor.

REFERENCES:
patent: 4691202 (1987-09-01), Denne et al.
patent: 5491482 (1996-02-01), Dingwall et al.
patent: 5502445 (1996-03-01), Dingwall et al.

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