Codeable identifying tag and method of identification thereof

Details Codeable identifying tag and method of identification thereof Codeable identifying tag and method of identification thereof

1983-08-12

1987-02-24

Tubbesing, T. H.

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

Radar transponder system

Unique identity

340572, G01S 1380

Patent

active

046460900

ABSTRACT:
A tag is receptive of two radio frequencies (RF signals) for mixing the two frequencies and radiating a signal which is either or both the sum and difference of the two RF frequencies. A uniquely identifiable tag includes, in addition to the mixer one or more filters for radiating a signal only when the sum or difference of the two signals is a pre-specified value or only when the RF signals are each of pre-selected values.

REFERENCES:
patent: 2910579 (1959-10-01), Jones et al.
patent: 2960664 (1960-11-01), Brodwin
patent: 3036295 (1962-05-01), Kleist
patent: 3068471 (1962-12-01), Erst
patent: 3172102 (1965-03-01), Chapman
patent: 3290675 (1966-12-01), Neild
patent: 3427613 (1969-02-01), Kawahara et al.
patent: 3631442 (1971-12-01), Fearson
patent: 3798642 (1974-03-01), Augenblick et al.
patent: 3839718 (1974-10-01), Bowman-Manifold
patent: 3944928 (1976-03-01), Augenblick et al.
patent: 3984835 (1976-10-01), Kaplan et al.
patent: 3990065 (1976-11-01), Purinton et al.
patent: 4003049 (1977-01-01), Sterzer et al.
patent: 4017855 (1977-04-01), Buck et al.
patent: 4031535 (1977-06-01), Isbister
patent: 4068232 (1978-01-01), Meyers et al.
patent: 4104630 (1978-08-01), Chasek
patent: 4249167 (1981-02-01), Purinton et al.
patent: 4302846 (1981-11-01), Stephen et al.
patent: 4352098 (1982-09-01), Stephen et al.

Affiliated with

Also associated with

Rating

Codeable identifying tag and method of identification thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Codeable identifying tag and method of identification thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Codeable identifying tag and method of identification thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-111502