Communications: electrical – Selective – Having indication or alarm
Patent
1975-06-06
1976-10-05
Habecker, Thomas B.
Communications: electrical
Selective
Having indication or alarm
340152R, 23515027, G08G 112
Patent
active
039848060
ABSTRACT:
A vehicle location system for vehicles travelling over a predetermined route in which equipment in the vehicle derives information concerning the distance travelled from predetermined junctions and the turns made and computing means within the vehicle computes the route between road junctions on which the vehicle is travelling. Each vehicle carries transmitter means for transmitting computed location information to a base station when interrogated by the same.
REFERENCES:
patent: 3568161 (1971-03-01), Knickel
patent: 3849636 (1974-11-01), Helms
patent: 3886515 (1975-05-01), Cottin
Habecker Thomas B.
The Marconi Company Limited
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