Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2006-05-02
2006-05-02
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
Reexamination Certificate
active
07039817
ABSTRACT:
Apparatus forming a computer system or such-like is disclosed that includes a central processing unit (CPU) and a power supply unit. The CPU provides a digital voltage ID (VID) signal output indicative of the power supply voltage that it desires to receive. The power supply unit has a control input for receiving a digital VID signal from the CPU. The power output from the unit is then provided to the CPU at a voltage level in accordance with the received digital VID signal. A VID offset generator is interposed between the CPU and the power supply unit. This receives the digital VID signal from the CPU, and modifies it by applying a positive or negative offset. The modified digital VID signal is then passed to the power supply unit, which supplies a voltage to the CPU as per the modified VID signal, rather than the VID signal originally output by the CPU.
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Burnham Andrew S.
Garnett Paul
Kinnard J. Rothe
Browne Lynne H.
Kivlin B. Noäl
Myertons Hood Kivlin Kowert & Goetzel, P.C.
Patel Anand B.
Sun Microsystems Inc.
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