Electronic license plate for motor vehicles

Details Electronic license plate for motor vehicles Electronic license plate for motor vehicles

1974-05-28

1977-01-04

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 68R, 343713, G01S 956

Patent

active

040018229

ABSTRACT:
An electronic license tag or plate formed into a unitary structure and including a single antenna system cooperating in a system comprising a harmonic radiator which transmits a pulse coded identification signal in response to an interrogation signal, and in a signal communication path for detecting and decoding code modulations in the interrogation signal and deriving therefrom an information signal which is communicated to the operator of a vehicle to which the tag or plate is affixed.

REFERENCES:
patent: 3521280 (1970-07-01), Janco et al.
patent: 3839717 (1974-10-01), Paul
patent: 3859624 (1975-01-01), Kriofsky
patent: 3914762 (1975-10-01), Klensch

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