LOCATION METHOD AND SYSTEM AND LOCATABLE PORTABLE DEVICE
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United States of America Patent
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N/A
Issued Date -
Oct 30, 2008
app pub date -
Oct 11, 2007
filing date -
Apr 30, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Location method for locating a portable device from a server configured to communicate with said portable device through a wireless communications network, comprising the steps of: sending GPS assistance information from the server (2) to the portable device (1) through said wireless communication network (3); obtaining in an A-GPS positioning module (11) of the portable device (1) a GPS signal (4) from a satellite system (8); calculating in said portable device (1) a location of the device (1) itself from said GPS signal (4) and from the GPS assistance information sent by the server (2); sending said location to the server (2). The method further comprises the step of: when the portable device (1) stops, hibernating the A-GPS positioning module (11), the transmission/receiving module (12) and a microprocessor (15) of said portable device (1) managing said modules (11, 12), such that the battery is saved and autonomy of the portable device (1) is thus achieved. Portable device and location system.
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