Communications: directive radio wave systems and devices (e.g. – Radar transponder system
Patent
1995-06-01
1997-01-14
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar transponder system
342 44, 342 50, 342 51, 340928, 34082534, 34082554, G01S 1376
Patent
active
055944477
ABSTRACT:
A vehicle ID radar system has a simple construction and obtains high identifying performance by making a general identification based on a plurality of responses. There are provided an antenna for obtaining a plurality of question signals from a base station radar unit, a receiver for processing the signals received from the antenna, a question code demodulator for demodulating question codes from the received signals, a question code decoder for decoding the question codes and reading responses respectively corresponding to the plurality of questions from a plurality of data bases, a response code generator for generating response signals, and a transmitter for modulating the response signals and supplying them to the antenna.
REFERENCES:
patent: 4682173 (1987-07-01), Kotoh
Fujisaka Takahiko
Iwamoto Masafumi
Kondo Michimasa
Usui Ryuzaburo
Yamamoto Kazuhiko
Mitsubishi Denki & Kabushiki Kaisha
Sotomayor John B.
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