Power management in an information channel
AssigneeSeagate Technology LLC
InventorsCheeWee Cheng, KianWai Ng, QuekLeong Choo, Myint Muang Ngwe, KahLiang Gan
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Abstract
Methods and associated apparatus to reduce electrical power consumption in an information channel may include identifying times at which to restore power to elements in the information channel, and restoring power to the elements at the identified times. Times for each element are identified based on a recovery time for that element to reach a sufficiently stable operating point before a transition to an active mode of operation. By maximizing the length of time individual elements may stay in the reduced power mode, power savings may be maximized without negatively affecting information channel performance.
Claims20
A method, comprising:
- reducing electrical power being consumed by each of two or more power-consuming elements in an information channel when the information channel is in a first mode of operation;
- identifying, separately for each element, a time at which power must be restored to that element for that element to reach a sufficiently stable operating point before a transition to a second mode of operation;
- and
- restoring power to each element at or approximately at the corresponding identified time.
A method, comprising:
- reducing electrical power being consumed by each of two or more power-consuming elements in an information channel when the information channel is in a power save mode of operation by removing substantially all of the power being supplied to each of the elements;
- identifying, separately for each element, a time at which power must be restored to that element for that element to reach a sufficiently stable operating point before a transition to an active mode of operation, wherein the identified times for each element are different;
- and
- restoring power to each element at or approximately at the corresponding identified time.
A computer-readable medium comprising instructions that, when executed by a processor, cause the processor to:
- reduce electrical power being consumed by each of two or more power-consuming elements in an information channel when the information channel is in a first mode of operation;
- identify, separately for each element, a time at which power must be restored to that element for that element to reach a sufficiently stable operating point before a transition to a second mode of operation;
- and
- restore power to each element at or approximately at the corresponding identified time.
Dependencies are inferred from the claim text.