Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2008-04-28
2011-10-11
Zaman, Faisal M (Department: 2111)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S300000, C320S137000
Reexamination Certificate
active
08037331
ABSTRACT:
Optimized bus powered peripheral battery charging includes a circuit to initiate a change in an advanced configuration and power interface (ACPI) state in a controller allowing charging of a peripheral device battery, the circuit including a signal converter coupled between an input port and the controller to sense when a the peripheral device battery is coupled to an input port and to restrict the controller from changing ACPI state multiple times for a given peripheral device battery coupling; and a ground loop detector coupled in parallel to the signal converter between the input port and the controller to allow the controller to know that the peripheral device battery has maintained being coupled to the input port.
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Cross Kyle E.
Fiebrich Greg R.
Messick Douglas Evan
Dell Products L.P.
Haynes and Boone LLP
Zaman Faisal M
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