Apparatus for identifying objects and persons

Details Apparatus for identifying objects and persons Apparatus for identifying objects and persons

1979-05-15

1981-04-21

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 68R, G01S 1380

Patent

active

042635950

ABSTRACT:
A system for identifying persons and objects includes an information carrier adapted to be secured to an object to be identified, and a read unit coupled to the information carrier by means of electromagnetic waves. The information carrier incorporates a plurality of passive elements interconnected with a receive-transmit antenna system so that an interrogation signal is processed and retransmitted as a unique signature of the information carrier. The passive elements of the information carrier include delay elements, attentuation elements, and filters, interconnected in a plurality of parallel paths to generate the identifying signature.

REFERENCES:
patent: 3362025 (1968-01-01), Mori
patent: 3377616 (1968-04-01), Auer, Jr.
patent: 3706094 (1972-12-01), Cole et al.
patent: 3922674 (1975-11-01), Gingras, Jr. et al.
patent: 3946393 (1976-03-01), Dunne et al.
patent: 3981011 (1976-09-01), Bell
patent: 4059831 (1977-11-01), Epstein
patent: 4096477 (1978-06-01), Espstein et al.

Affiliated with

Also associated with

Rating

Apparatus for identifying objects and persons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for identifying objects and persons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for identifying objects and persons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-560391