Interruption-free hand-held positioning method and system thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 2, 2002
Grant Date -
N/A
app pub date -
Nov 29, 2000
filing date -
Nov 29, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
An interruption-free hand-held positioning method and system, carried by a person, includes an inertial measurement unit, a north finder, a velocity producer, a positioning assistant, a navigation processor, a wireless communication device, and a display device and map database. Output signals of the inertial measurement unit, the velocity producer, the positioning assistant, and the north finder are processed to obtain highly accurate position measurements of the person. The user's position information can be exchanged with other users through the wireless communication device, and the location and surrounding information can be displayed on the display device by accessing a map database with the person position information.
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