Power management apparatus and methods for portable data terminals
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United States of America Patent
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Aug 18, 2009
Grant Date -
Nov 29, 2007
app pub date -
May 9, 2006
filing date -
May 9, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In accordance with at least one embodiment, a portable data terminal generally comprising a battery: a central controller, a GPS system, and an auxiliary processor. The central controller that has a sleep state wherein at least some of the functionality of the central controller is limited to conserve battery power. The auxiliary processor may be selected based, at least in part, on power draw. In particular, it is desirable for the auxiliary processor to use less power than the central controller when the central controller is fully activated. The auxiliary processor monitors the output of the GPS system and wakes the central controller from a sleep state based on the output of the GPS system.
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