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 -
Feb 12, 2009
app pub date -
Apr 30, 2008
filing date -
Apr 30, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Location method for locating a portable device (1) from a server (2) configured to communicate with said portable device (1) through a wireless communication network (3), with 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) a GPS signal (4) from a satellite system (8); calculating a location of the device (1) itself from said GPS signal (4) and from GPS assistance information; and sending said location to the server (2). The method further comprises: when the portable device (1) is stopped, hibernating the A-GPS positioning module (11), the transmission/receiving module (12) and a microprocessor (15) managing said modules (11, 12), such that the battery is saved and the autonomy of the portable device (1) is thus increased; and when the portable device (1) is connected by means of an external cable (19) to a vehicle, said portable device (1) and said external cable (19) form a locator device for the automotive environment (10), which is useful as an anti-theft system which is undetectable due to being radio-electrically transparent.
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