Patent ID: 7464277
Filing Date: 2008-12-09
Classification: G06F,Y02D

Abstract:
1. A method for controlling microprocessor performance modes, comprising: providing at least two performance modes for a microprocessor with a first performance mode being higher than a second performance mode; sensing an edge temperature related to an edge temperature of the microprocessor as an indication of microprocessor utilization; sensing a core temperature related to a core temperature for the microprocessor as an indication of an over-heating condition; selecting the first performance mode for the microprocessor if the sensed edge temperature rises above a first threshold level, the first threshold level being a non-danger threshold level; selecting the second performance mode for the microprocessor if the sensed edge temperature falls below a second threshold level, the second threshold level being a non-danger threshold level; and placing the microprocessor in a low power protection mode if the sensed core temperature rises above a danger threshold level, wherein the danger threshold level is different from the first and second threshold levels.