Digitally programmable radio modules for transponder systems

Details Digitally programmable radio modules for transponder systems Digitally programmable radio modules for transponder systems

1995-08-31

1998-01-27

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

455 491, 342 42, 342 51, 342 30, 34082549, G01S 1387, G01S 1380, H01Q 900

Patent

active

057126283

ABSTRACT:
A programmable digital radio is configured to perform transponder functions. A receiver in the programmable digital radio receives analog signals from an interrogator and digitizes the analog signals to produce digital interrogation signals. The digital interrogation signals are processed digitally and valid interrogations are detected. Processing includes detection of pulses, determination of each pulse's threshold, determination of intervals between pulses and whether the intervals meet mode criteria, and determination of priority of output of digital messages encoded in the pulses. At least one message is supplied to a transmit module in the programmable radio. The transmit module performs diversity processing on the received message to determine to which received signal to reply, produces reply data and modulates the reply data to produce intermediate frequency signals. The intermediate frequency signals are then converted to analog signals which are transmitted to the interrogator.

REFERENCES:
patent: 3946393 (1976-03-01), Dunne et al.
patent: 3981440 (1976-09-01), Richardson
patent: 4137531 (1979-01-01), Pell
patent: 4533917 (1985-08-01), Reed
patent: 5144314 (1992-09-01), Malmberg
patent: 5317316 (1994-05-01), Sturm et al.
patent: 5334982 (1994-08-01), Owen
patent: 5390360 (1995-02-01), Scop et al.

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