Interrogator and transponder test equipment

Details Interrogator and transponder test equipment Interrogator and transponder test equipment

1987-10-15

1989-01-31

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

342 45, 342162, H04L 900, G01S 956

Patent

active

048022160

ABSTRACT:
Test equipment is described for testing a transponder and an interrogator positioned in close proximity to one another to cause suppression of its receivers while either transponder or interrogator is transmitting incorporating an RF receiver, detector, shift register, timing controller, modulator and RF transmitter. The invention overcomes the problem of testing an interrogator and transponder with cryptograms that must be generated or stored in the test equipment and overcomes the problem of requiring two test sets for testing the interrogator and transponder.

REFERENCES:
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patent: 3913100 (1975-10-01), Janex
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patent: 4322729 (1982-03-01), Honold et al.
patent: 4418349 (1983-11-01), Hofgen et al.
patent: 4442430 (1984-04-01), Schneider
patent: 6024538 (1977-05-01), Bishop

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