Electronic license plate apparatus and method

Details Electronic license plate apparatus and method Electronic license plate apparatus and method

1995-07-14

1996-11-26

Lobo, Ian J.

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Unique identity

342 45, 342 51, G01S 1380

Patent

active

055790089

ABSTRACT:
Apparatus and method for conveying information from an object by delayed reflection of an interrogating ultra-high range resolution radar signal which is digitized into a series of programmable spaced pulses by an electronic license plate circuit. The electronic license plate includes a plurality of unique programmable delay lines connected through a coupler network to an antenna.

REFERENCES:
patent: 4358763 (1982-11-01), Strauch
patent: 4625208 (1986-11-01), Skeie et al.
patent: 5164734 (1992-11-01), Fredericks et al.
patent: 5254997 (1993-10-01), Cohn
patent: 5291204 (1994-03-01), Danzer

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