Object identification system

Details Object identification system Object identification system

1976-07-27

1978-10-17

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250338, 343 65LC, G01J 100, G01S 956

Patent

active

041211022

ABSTRACT:
A transponder/interrogator system for remotely identifying objects. The interrogator emits infrared pulses to activate and remotely clock the transponder. Upon such activation, the transponder emits a unique code in the form of infrared pulses in accordance with a program stored in a recirculating shift register. The interrogator receives the infrared pulses from the transponder and decodes them. The decoded information is then supplied to a controller which runs various status checks on the object identified.

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patent: 3671963 (1972-06-01), Assouline et al.
patent: 3859624 (1975-01-01), Kriofsky et al.
patent: 3911433 (1975-10-01), Redman
patent: 3949397 (1976-04-01), Wagner et al.
patent: 4025791 (1977-05-01), Lennington et al.
patent: 4046961 (1977-09-01), Brown

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