Communications: electrical – Selective – Having indication or alarm
Patent
1975-08-22
1976-03-30
Hubler, Malcolm F.
Communications: electrical
Selective
Having indication or alarm
23515024, 325 53, 343 65LC, 343112TC, G01S 902, G01S 956, G08G 112
Patent
active
039478076
ABSTRACT:
A vehicle location system for vehicles travelling over a predetermined route in which the vehicle sends to a base station information concerning the distance travelled from a predetermined starting point and the turns made, from which information the base station computes the route between road junctions, on which the vehicle is travelling.
REFERENCES:
patent: 3281789 (1966-10-01), Willcox et al.
patent: 3568161 (1971-03-01), Knickel
patent: 3644883 (1972-02-01), Borman et al.
patent: 3646580 (1972-02-01), Fuller et al.
patent: 3681752 (1972-08-01), Cuddihy
patent: 3757290 (1973-09-01), Ross et al.
DE Tullio Luigi
Tyler Ronald Arthur
Hubler Malcolm F.
The Marconi Company Limited
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