Power save control device and control method
AssigneeKabushiki Kaisha Toshiba
InventorRyoji Ninomiya
Life of this patent
Estimating the term…
Abstract
A power supply controller measures electrical power consumed by information processing apparatus. An embedded controller passes the data to power management utility software each time a specified length of time is elapsed. The utility software accumulates a difference as found between this consumed power level and a predetermined reference value. The utility software shifts the information processing apparatus into its power-save modes when the accumulated value becomes larger than the predetermined value.
Claims14
A power save control device for use in electronic equipment with a plurality of operation modes each having different consumptive power, comprising:
- means for measuring electric power consumed by the electronic equipment;
- means for switching between the plurality of operation modes based on a predefined measurement condition of the consumed electric power;
- means for determining whether the predefined measurement condition is satisfied;
- and
- means for detecting an input from an input device to the electronic equipment, wherein the determining means is initialized when a certain input is detected by the detection means.
A power save control device for use in electronic equipment with a plurality of operation modes each having different consumptive power, comprising:
- means for measuring electric power consumed by the electronic equipment;
- means for switching between the plurality of operation modes based on a predefined measurement condition of the consumed electric power;
- means for determining whether the predefined measurement condition is satisfied;
- means for detecting an input from an input device to the electronic equipment, wherein the determining means is initialized when a certain input is detected by the detecting means;
- and
- accumulator means for accumulating the consumed electric power measured by the measurement means, wherein the determining means determines that the condition is satisfied when a resultant accumulated by the accumulator means becomes higher than a predetermined threshold value.
A power save control device for use in electronic equipment with a plurality of operation modes each having different consumptive power, comprising:
- means for measuring electric power consumed by the electronic equipment;
- means for switching between the plurality of operation modes based on a predefined measurement condition of the consumed electric power;
- and
- means for storing a predetermined threshold value of consumed electric power and a reference value,
- wherein the predefined measurement condition equals a predefined number of times the consumed electric power becomes lower than the reference value while the consumed electric power is not in excess of the predetermined threshold value.
A power save control method for use with electronic equipment having a plurality of operation modes each having different consumptive power, comprising:
- measuring electrical power consumed by the electronic equipment;
- calculating a difference between the measured consumed electric power and a predetermined reference value;
- accumulating a plurality of the differences to reach an accumulated value;
- and
- comparing the accumulated value to a prespecified value, wherein the predefined measurement condition is satisfied when the accumulated value becomes higher than the prespecified value;
- and
- changing an operation mode to another operation mode based on a predefined measurement condition of the consumed electric power.
Dependencies are inferred from the claim text.