Object identification system using an RF roll-call technique

Details Object identification system using an RF roll-call technique Object identification system using an RF roll-call technique

1975-03-31

1976-09-14

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 65SS, G01S 956

Patent

active

039810119

ABSTRACT:
An object identification system using an RF roll-call technique wherein an interrogator illuminates a multitude of cooperating objects with a sequence of codes and receives from each such cooperating object an acknowledge signal immediately following the transmission of the code associated with that object and which terminates prior to completion of transmission of the next code in the sequence.

REFERENCES:
patent: 3270338 (1966-08-01), Watters
patent: 3341845 (1967-09-01), Deman
patent: 3706094 (1972-12-01), Cole et al.
patent: 3774205 (1973-11-01), Smith et al.
patent: 3859624 (1975-01-01), Kriofsky et al.
patent: 3878528 (1975-04-01), Majeau

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