Boots – shoes – and leggings
Patent
1993-11-02
1996-01-09
Chin, Gary
Boots, shoes, and leggings
340990, 340995, 342357, 342457, G06F16500
Patent
active
054834562
ABSTRACT:
A navigation system includes: GPS receiving device for receiving satellite information including accuracy information supplied from a plurality of GPS satellites and outputting at least the accuracy information, a measuring position as a receiving point calculated from the satellite information, and a declining rate of measuring accuracy calculated on the basis of the position of the GPS satellites; deviation calculating device for calculating a GPS measuring deviation by using the accuracy information and the declining rate of the measuring accuracy; map information storing device for storing map information including digitalized road information; and current position estimating device for estimating a current position by searching the road information within the radius of the GPS measuring deviation around the measured position.
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patent: 4949268 (1990-08-01), Nishikawa et al.
patent: 5276451 (1994-01-01), Odagawa
patent: 5293318 (1994-03-01), Fukushima
patent: 5311195 (1994-05-01), Mathis et al.
patent: 5323163 (1994-06-01), Maki
Kuwahara Shingo
Odagawa Satoshi
Chin Gary
Pioneer Electronic Corporation
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