Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2011-02-22
2011-02-22
Nguyen, Cuong H (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C307S064000, C307S066000, C322S011000, C713S323000
Reexamination Certificate
active
07894954
ABSTRACT:
A power control system for car computer includes a power switching circuit located between a power input terminal of a computer host and an external power source, such that the computer host outputs a keep-power-on signal when a key power is supplied thereto; a power ON/OFF circuit receiving the keep-power-on signal to thereby connect the external power source to the computer host; a key power detection circuit for constantly detecting whether the key power is ON, so that the computer host outputs a shut-down signal when the key power is OFF; a computer shut-down circuit for receiving the shut-down signal from the computer host and thereby driving the computer host to execute shut-down procedures; and a power OFF circuit for sensing an OFF state of the key power and outputting a control signal to drive the power ON/OFF circuit to disconnect the external power source from the computer host.
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Apex Juris, PLLC
Heims Tracy M
King Young Technology Co., Ltd.
Nguyen Cuong H
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