Method for measuring suspend-time power consumption in a battery-powered electronic device
First Claim
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1. A method for measuring power consumed by an electronic device powered by an electrical energy storage unit while the electronic device is in a suspended condition, said method comprising the steps of:
- detecting a pre-suspend charge capacity for the electrical energy storage unit;
detecting a post-suspend charge capacity for the electrical energy storage unit; and
calculating a capacity loss for the electrical energy storage unit using the pre-suspend and post-suspend charge capacities.
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Abstract
A method for measuring power consumed by an electronic device while the electronic device is in a suspended condition includes the steps of determining the charge capacity of an electrical energy storage unit both before and after the electronic device is suspended. This information is then used to calculate charge capacity lost while the electronic device was suspended.
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Citations
26 Claims
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1. A method for measuring power consumed by an electronic device powered by an electrical energy storage unit while the electronic device is in a suspended condition, said method comprising the steps of:
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detecting a pre-suspend charge capacity for the electrical energy storage unit; detecting a post-suspend charge capacity for the electrical energy storage unit; and calculating a capacity loss for the electrical energy storage unit using the pre-suspend and post-suspend charge capacities. - View Dependent Claims (2, 3, 4, 5)
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6. A set of instructions residing on a storage medium for measuring power consumed by an electronic device during a period of reduced-power operation, the electronic device including an electrical energy storage unit, a clock and a memory, said set of instructions comprising instructions for:
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determining a first charge capacity value from the electrical energy storage unit and a first time value from the clock before the electronic device enters the period of reduced-power operation; storing the first charge capacity value and the first time value in the memory; determining a second charge capacity value from the electrical energy storage unit and a second time value from the clock after the electronic device exits the period of reduced-power operation; and calculating a charge capacity loss over time using the first and second charge capacity values and the first and second time values. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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- 13. An electronic device configured for monitoring power consumed while said electronic device is in a reduced-power condition, said electronic device comprising an electrical energy storage unit powering said electronic device, a processor, a memory, a display device, and a power consumption monitor, said power consumption monitor including a means for respectively determining when said electronic device enters and exits the reduced-power state, a means for determining a charge capacity of said electrical energy storage unit before and after said electronic device is in the reduced-power state, a means for determining a period of time said electronic device is in the reduced-power state, and a means for calculating charge capacity lost by said electrical energy storage unit during the period of time that the electronic device is in the reduced-power state.
- 21. An electronic device comprising an electrical energy storage unit and a power consumption monitor, said power consumption monitor being configured to determine a charge capacity of Said electrical energy storage unit both before and after said electronic device is in a reduced-power condition, and to calculate a capacity loss of said electrical energy storage unit using said charge capacities.
Specification