Apparatus and method for identification of objects

Details Apparatus and method for identification of objects Apparatus and method for identification of objects

1982-07-30

1985-05-14

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

3408253, 119 51R, H04Q 900

Patent

active

045175632

ABSTRACT:
An object identification system comprising an active transponder including a high frequency generator, and a passive transponder including a resonance circuit receiving energy from the active transponder, and a coding circuit powered by the energy received by the resonance circuit. The passive transponder is mounted on an object to be identified.

REFERENCES:
patent: 3541995 (1970-11-01), Fathauer
patent: 3714649 (1973-01-01), Brouwer et al.
patent: 3964024 (1976-06-01), Hutton et al.
patent: 4196418 (1980-04-01), Kip et al.
patent: 4333072 (1982-06-01), Beigel
patent: 4364043 (1982-12-01), Cole et al.
patent: 4399437 (1983-08-01), Falck et al.
Street, M. J. "A Pulse-Code Modulation System for Automatic Animal Identification", Journal of Agricultural Engineering Res. 1979, pp. 249-258.

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