Route entry location apparatus

Details Route entry location apparatus Route entry location apparatus

1995-07-10

1998-03-17

Chin, Gary

Boots, shoes, and leggings

3644493, 342357, 340990, G06F16500

Patent

active

057294577

ABSTRACT:
A navigation system (10) for determining an entry point from an unmatched location to a known route, including a network of navigation route segments (48), an absolute position reverse differential corrector (27) for determining a corrected position of a remote mobile device (12) based on uncorrected absolute position data received from the mobile device (12), and a route entry determiner (32) operably coupled to the network (48) and the reverse differential corrector (27) for determining an accurate entry point of the mobile device (12) onto the network of route segments (48).

REFERENCES:
patent: 5107433 (1992-04-01), Helldorfer et al.
patent: 5148179 (1992-09-01), Allison
patent: 5365447 (1994-11-01), Dennis
patent: 5365450 (1994-11-01), Schuchman et al.
patent: 5365451 (1994-11-01), Wang et al.
patent: 5420594 (1995-05-01), Fitzgerald et al.
patent: 5470233 (1995-11-01), Fruchterman et al.
patent: 5477458 (1995-12-01), Loomis

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