Positioning systems utilizing mobile telephone system for correction signals
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United States of America Patent
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-
Dec 14, 2010
Grant Date -
N/A
app pub date -
Jan 13, 1997
filing date -
Dec 2, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A positioning system where receiving stations such as multipurpose mobile communications devices can calculate their position. The system includes base stations adapted to receive position information from the receiving stations over a communications path of a mobile telephone system. The system allows the receiving stations to receive a correction signal from a correction station over the communications path on a special signaling layer such that the receiving stations can calculate a corrected position. The system can be used in conjunction with many forms of mobile telephone systems.
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