Patent ID: 8676052

Claim:
A method for controlling operation of a portable apparatus, wherein the portable apparatus is configured to be provided with a plurality of types of sensors, said types of sensors including an image sensor, wherein said portable apparatus is operable in a plurality of powered operational states, said powered operational states including a first operational state and a second operational state, and an image capturing operation is performable in the first operational state, the method comprising: controlling, by a processor configured to be connected to said sensors and including one or a plurality of control units, at least one of said control units having a variably controllable operating frequency, said portable apparatus to change operational state of said portable apparatus from the second operational state to the first operational state and supply power to one or a plurality of components of the portable apparatus including said image sensor which is in a predetermined power consumption state in the second operational state when receiving a first signal representing an activation of the image capturing operation in the second operational state according to a result of output of one or a plurality of said sensors, wherein said change of operational state is performed with background processing, and wherein said operating frequency can be lowered so that power consumption of said one of the control units can be close to almost zero.