Vehicle mounting apparatus of an automatic vehicle location syst

Details Vehicle mounting apparatus of an automatic vehicle location syst Vehicle mounting apparatus of an automatic vehicle location syst

1990-01-31

1992-08-25

Ng, Jin F.

Communications: electrical

Vehicle position indication

At remote location

340989, 342457, 364460, G08G 1123

Patent

active

051422816

ABSTRACT:
A vehicle mounting apparatus for an automatic vehicle location system having a omni-directional antenna, a transmitting and receiving switch, an oscillator frequency converters, a frequency-shift keying demodulator, post office committe standard associate group decoder, a pseudorandom noise signal generator, a phase-shift keying modulator, a transmitting signal generator, a power amplifier, and a power supplier. The vehicle mounting apparatus receives a referencing signal from a control center and transmits an answer signal relating to location of a vehicle to be located.

REFERENCES:
patent: 4596988 (1986-06-01), Wanka
patent: 4622557 (1986-11-01), Westerfield
patent: 4700179 (1987-10-01), Fancher
patent: 4742357 (1988-05-01), Rackley
patent: 4783654 (1988-11-01), Ichikawa
patent: 4818998 (1989-04-01), Apsell et al.
patent: 4931788 (1990-06-01), Creswick

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