Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1993-02-05
1994-09-13
Groody, James J.
Communications: electrical
Condition responsive indicating system
Specific condition
34082531, 34082554, 34082534, 342 44, 235382, G08B 1314
Patent
active
053472632
ABSTRACT:
Low cost, compact electronic identifier apparatus interrogates a passive (no external power) or active (external power) transponder. Such identifier apparatus and transponder(s) may be used, e.g., for: (1) access control, (2) animal feeding and animal health, (3) inventory control, (4) process control, and/or (5) theft/security applications. The identifier apparatus further powers the transponder if it is passive. A power carrier signal broadcast by the identifier apparatus clocks and/or synchronizes the transponder operation. In response to being interrogated, the transponder sends back identification (ID) data. The ID data is received and extracted by the identifier apparatus in the presence of the power carrier "noise", and is then demodulated and decoded to recover the ID data. The electronic identifier apparatus uses a low cost, high speed, single chip microcontroller configured to operate so as to eliminate the use of decoders, drivers and other external circuitry.
REFERENCES:
patent: 3859624 (1975-01-01), Kriofsky et al.
patent: 3878528 (1975-04-01), Majeau
patent: 4095214 (1978-06-01), Minasy
patent: 4129855 (1978-12-01), Rodrian
patent: 4354099 (1982-10-01), Rayment et al.
patent: 4475481 (1984-10-01), Carroll
patent: 4549264 (1985-10-01), Carroll et al.
patent: 4672375 (1987-06-01), Mochida et al.
patent: 4688036 (1987-08-01), Hirano et al.
patent: 4724427 (1988-02-01), Carroll
patent: 4739328 (1988-04-01), Koelle et al.
patent: 4857893 (1989-08-01), Carroll
patent: 4893118 (1990-01-01), Lewiner et al.
patent: 5023887 (1991-06-01), Takeuchi et al.
patent: 5070500 (1991-12-01), Horinouchi et al.
patent: 5235326 (1993-08-01), Beigel et al.
patent: 5266926 (1993-11-01), Beigel
Carroll Gary T.
Pauley J. Donald
GnuCo Technology Corporation
Groody James J.
Miller John W.
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