Data processing: vehicles – navigation – and relative location – Navigation
Reexamination Certificate
2006-05-09
2009-08-18
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Navigation
C701S213000, C342S357490
Reexamination Certificate
active
07577516
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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Dobeck Brian R.
Meggitt Adam E.
Sauerwein Jim T.
Yeakley Daniel Duane
Hand Held Products, Inc.
Hellner Mark
Marjama Muldoon Blasiak & Sullivan LLP
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