Multiple communication path compatible automatic vehicle locatio

Details Multiple communication path compatible automatic vehicle locatio Multiple communication path compatible automatic vehicle locatio

1989-08-08

1991-09-03

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 83, 455 54, H04B 144

Patent

active

050461303

ABSTRACT:
A location reporting device for use with both voice and data RF transceivers. The location determining device selects which of the transceivers will be utilized to transmit location information to a central site in response to a number of predetermined criteria, including reception of a polling request on one of the transceivers, initiation of transmission activity on one of the transceivers, and elapsed time since a last transmission of location information by the location unit.

REFERENCES:
patent: 4276651 (1981-06-01), Bench et al.
patent: 4845504 (1989-07-01), Roberts et al.

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