Vehicle location system

Details Vehicle location system Vehicle location system

1984-09-25

1986-12-16

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

340 21, 455 55, 342365, H04R 7185, B66B 302

Patent

active

046300570

ABSTRACT:
A leaky-feeder or other form of guided radiocommunication system serving a linear route or track is equipped at intervals with static marker devices which successively modify a radio signal passing those points between a fixed base station and a personal or mobile station travelling the route. By reference to the resulting overall modification to the signal as received at the mobile or fixed station the position of the mobile station may be determined or delimited.

REFERENCES:
patent: 2859426 (1958-11-01), Davis
patent: 3199630 (1965-08-01), Engel et al.
patent: 3406342 (1968-10-01), Hubner
patent: 3916311 (1975-10-01), Martin et al.
patent: 4041495 (1977-08-01), Martin
patent: 4233588 (1980-11-01), Satoh
patent: 4495495 (1985-01-01), Ormanno et al.

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