Navigation system for mobile communication devices

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20030054830A1
SERIAL NO

09947202

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A navigation assistance system provides navigational guidance to a user of a mobile appliance equipped with a radio transceiver. The user can specify a destination address either directly or categorically and select from any choices to resolve ambiguity. The user submits the selected destination to a fixed radio system such as a cellular telephony system which estimates the user position, determines the relative location of the destination and sends to the user appliance data which allows the display of approximate range and bearing to the destination. The mobile appliance can be equipped with a compass which can be electronic and which allows a user to be shown the direction of travel in order to reach the destination.

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Patent Owner(s)

Patent OwnerAddress
ZI CORPORATION OF CANADA INC300 500-4TH AVENUE S W CALGARY ALBERTA T2P 2V6

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Simpson, Todd G Calgary, CA 12 1434
Williams, Roland Pleasant Hill, CA 2 344

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