Non-synchronous object identification system

Details Non-synchronous object identification system Non-synchronous object identification system

1979-12-20

1982-04-13

Britton, Howard

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

340636, 34082554, 370 92, 455608, H04B 900

Patent

active

043251463

ABSTRACT:
A transponder/interrogator system for remotely identifying objects. The interrogator emits optical pulses to activate the transponder. Upon such activation, the transponder emits a unique code in the form of optical pulses in accordance with a program stored in its memory. The interrogator receives the optical pulses from the transponder and decodes them. The decoded information is then supplied to peripheral equipment which run various status checks on the object identified and takes appropriate action.

REFERENCES:
patent: 3377616 (1968-04-01), Auer
patent: 3633158 (1972-01-01), Heibel
patent: 3937880 (1976-02-01), Schlenker
patent: 4010456 (1977-03-01), Erni
patent: 4025791 (1977-05-01), Lennington
patent: 4099050 (1978-07-01), Sauermann
patent: 4121102 (1978-10-01), Wilson
patent: 4131791 (1978-12-01), Lego
patent: 4134008 (1979-01-01), de Corlieu
patent: 4213119 (1980-07-01), Ward

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