Patent ID: 7970272
Filing Date: 2011-06-28
Classification: G03B

Abstract:
1. A method of power management in an electronic device having a supervisor circuit for disabling all or a portion of functions of said electronic device if a first level of power to said electronic device falls below a predefined threshold, said method comprising: receiving a request for a function to be performed by said electronic device; determining a second level of power to said electronic device; performing a pre-function test; said pre-function test based on said function and selected to consume fewer power resources than said function and also selected to not to fall below said predefined threshold; determining a third level of power to said electronic device as a consequence of performing said pre-function test; and, if a difference between said second level of power and said third level of power meets a predefined criterion, preventing said electronic device from performing said function and otherwise permitting said electronic device to perform said function.