Patent ID: 7363208
Filing Date: 2008-04-22
Classification: G06F

Abstract:
1. A method of deriving a power transfer function of a circuit, the method comprising: running at least one test on a circuit having a plurality of inputs to obtain information on power consumption of the circuit responsive to signals applied to the plurality of inputs; grouping the plurality of inputs into groups of at least one input based on a commonality of power consumption of the circuit for the plurality of inputs as determined from the information; deriving a power transfer function for providing an estimate of power consumption of the circuit responsive to signals applied to the plurality of inputs of the circuit, wherein the transfer function includes a portion for each group of the groups; running at least one test on a second circuit having a plurality of inputs to obtain information on power consumption of the second circuit responsive to signals applied to the plurality of inputs of the second circuit; grouping the plurality of inputs of the second circuit into groups of at least one input of the second circuit based on a commonality of power consumption of the second circuit for the plurality of inputs as determined from the information; deriving a second power transfer function for providing an estimate of power consumption of the second circuit responsive to signals applied to the plurality of inputs of the second circuit, wherein the second power transfer function includes a portion for each group of the groups of the second circuit.