Remote identification device

Details Remote identification device Remote identification device

1994-12-09

1996-10-08

Mullen, Thomas

Communications: electrical

Vehicle detectors

340901, 340902, 340905, 34082554, 342 42, 342 44, G08G 101

Patent

active

055635890

ABSTRACT:
In a remote identification device, an interrogator sends a microwave signal to a responder, the interrogation wave signal being modulated. At each period of the modulation signal of the interrogation wave signal, the responder accumulates the energy conveyed by this signal, the energy received being converted into supply voltage to be used to encode and transmit a response microwave signal to the interrogator. This may be used for the identification of objects by a radar signal.

REFERENCES:
patent: 4001822 (1977-01-01), Sterzer
patent: 4104630 (1978-08-01), Chaser
patent: 4114151 (1978-09-01), Denne et al.
patent: 4388524 (1983-06-01), Walton
patent: 4631708 (1986-12-01), Wood et al.
patent: 4656472 (1987-04-01), Walton
patent: 4786707 (1988-11-01), Koelle
patent: 4912471 (1990-03-01), Tyburski et al.
J. G. Nolan, et al., "A Radiation Powered Single Chip EEPROM ID Code Transceiver", Proceedings of the IEEE 1987 Custom Integrated Circuits Conference, May 4-7, 1987, pp. 684-686.

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