Response to wearout in an electronic device
First Claim
1. An electronic device comprisinga first component susceptible to a wearout effect, operation of which first component depends on an operating parameter;
- a second component having an on-state and an off-state;
a time estimator for updating an estimate of an accumulated time the second component was in the on-state;
a recorder for chronologically recording values of a physical quantity, wherein the physical quantity has an influence on the wearout effect; and
a controller for controlling the operating parameter on the basis of both the accumulated time estimate and the recorded values of the physical quantity so as to respond to the expected wearout effect.
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Accused Products
Abstract
An electronic device comprises a first component susceptible to a wearout effect, operation of which first component depends on an operating parameter, and a second component having an on-state and an off-state. The electronic device further comprises a time estimator for updating an estimate of an accumulated time the second component was in the on-state; and a controller for controlling the operating parameter on the basis of the accumulated time estimate so as to respond to the expected wearout effect. The first component and the second component may be the same, or the first component may have an on-state correlated to the on-state of the second component. The operating parameter may, for example, be a level or amplitude or correction value of one of the following: a voltage applied at the first component, an electric current fed to the first component, and a power provided to the first component. A method of operating such an electronic device is also disclosed.
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Citations
19 Claims
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1. An electronic device comprising
a first component susceptible to a wearout effect, operation of which first component depends on an operating parameter; -
a second component having an on-state and an off-state; a time estimator for updating an estimate of an accumulated time the second component was in the on-state; a recorder for chronologically recording values of a physical quantity, wherein the physical quantity has an influence on the wearout effect; and a controller for controlling the operating parameter on the basis of both the accumulated time estimate and the recorded values of the physical quantity so as to respond to the expected wearout effect. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating an electronic device, wherein the electronic device comprises
a first component susceptible to a wearout effect, operation of which first component depends on an operating parameter; - and
a second component having an on-state and an off-state;
wherein the method comprises providing an estimate of an accumulated time the second component was in the on-state;chronologically recording values of a physical quantity, wherein the physical quantity has an influence on the wearout effect; and controlling the operating parameter on the basis of both the accumulated time estimate and the recorded values of the physical quantity so as to respond to the expected wearout effect. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification