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Judge Stark Issues Claim Construction Opinion for Computer Power System Patents

Judge Stark recently issues a Markman opinion construing the claims of patents related to power conservation in computer systems. In St. Clair Intellectual Prop. Consultants, Inc. v. Acer, Inc., et al., C.A. Nos. 09-354-LPS & 09-704-LPS (D. Del. Aug. 7, 2012), Judge Stark construed the following terms:

– “activity value”
– “activity count”
– “monitors/monitoring the activity level [of the] computer system”
– “activity monitor”
– “powered modes”/“powered states”
– “a power switching circuit”
– “predetermined group of the computer system devices/circuits”
– “operating modes”
– “idle threads”
– “clocking said CPU at a second frequency less than said first frequency or by not maintaining clocking of said CPU”
– “special purpose buses each connected to the processor and to one of the external devices and each operating at a different bus bandwidth corresponding to the bus bandwidth associated with the bus device to which it is connected”
– “common bus connecting the plurality of external bus devices to the plurality of special-purpose buses”
– “A data processing system comprising a processor, …. a plurality of special-purpose buses each connected to the processor, … and bus processing means”
– “power switching means for selecting one of said supply voltages as said card voltage”
– “when the input data [at least a subset of the input data] has not been recently updated”


St. Clair Intellectual Prop. Consultants, Inc. v. Acer, Inc., et al., C.A. Nos. 09-354-LPS & 09-704…

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