Programmable identification apparatus and method therefor

Details Programmable identification apparatus and method therefor Programmable identification apparatus and method therefor

1994-02-24

1996-05-14

Bowler, Alyssa H.

Communications: electrical

Continuously variable indicating

With meter reading

34082565, 340505, 455 382, H04Q 302, H04Q 916, G08C 1916, G08B 108

Patent

active

055171885

ABSTRACT:
A programmable identification apparatus, and associated method, includes a transceiver and a transponder. The transponder is powered by the energy of a transceiver transmit signal generated by the transceiver and includes a programmable memory element. A coded sequence which uniquely identifies the transponder is stored in the programmable memory element and, when the transponder is powered, the transponder generates a transponder signal which includes the coded sequence stored in the programmable memory element, once modulated by circuitry of the transponder. When the transceiver transmit signal generated by the transceiver circuitry is of certain signal characteristics, the coded sequence stored in the programmable element is erased, and a substitute coded sequence, which also forms a portion of the transceiver transmit signal, is stored in the programmable memory element. Storage of the coded sequence in the programmable memory element is, hence, effectuated merely by application of a transceiver transmit signal of certain characteristics to the transponder.

REFERENCES:
patent: 4177453 (1979-12-01), Collins
patent: 5070500 (1991-12-01), Horinouchi et al.
patent: 5214409 (1993-05-01), Beigel
patent: 5245332 (1993-09-01), Katzenstein
patent: 5257011 (1993-10-01), Beigel
patent: 5376932 (1994-12-01), Samokine et al.

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