Geographic locator of a vehicle using GPS and angles between pai

Details Geographic locator of a vehicle using GPS and angles between pai Geographic locator of a vehicle using GPS and angles between pai

1995-02-15

1996-08-27

Teska, Kevin J.

Boots, shoes, and leggings

364444, 364443, 364460, 340990, 340995, 340438, 342357, 342457, G06G 778, G06F 1710

Patent

active

055507433

ABSTRACT:
A system and method for using coordinate data indicative of the present location of a vehicle to determine which state the vehicle is in. A receiver obtains the coordinate data and compares it to state boundary coordinate information stored in memory. The angles created by the present coordinate location and each pair of adjacent points along a state's boundary are added. A resulting sum of two times pi (radians) indicates that the present state falls within the state boundary, a result of zero indicates otherwise.

REFERENCES:
patent: 5311197 (1994-05-01), Sorden et al.
patent: 5337242 (1994-08-01), Yamamoto et al.
patent: 5345388 (1994-09-01), Kashiwazaki
patent: 5359528 (1994-10-01), Haendel et al.
patent: 5365516 (1994-11-01), Jandrell
patent: 5416477 (1995-05-01), Shibata
patent: 5418537 (1995-05-01), Bird

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