Patent ID: 8687955

Claim:
A portable apparatus having a function of image capturing comprising: a processor including one or a plurality of control units; a plurality of types of sensors including an image sensor, said sensors having respective outputs of multiple types capable of being input to said processor; a display configured to display an image based on an image signal from said image sensor; and a power supply unit to supply power to said processor, said sensors and said display, wherein said portable apparatus is operable in a plurality of powered operational states including a first operational state and a second operational state, an image capturing operation being performable in the first operational state, wherein said portable apparatus changes its operational state from the second operational state to the first operational state and said power supply unit supplies power to one or a plurality of components of the portable apparatus including said image sensor when receiving a first signal representing an activation of the image capturing operation in the second operational state according to a result of the output of one or a plurality of said sensors, wherein said portable apparatus changes its operational state from the first operational state to a monitoring state and reduces power consumption of said display when there is not a second signal detected in a predetermined period, and wherein at least one of said control units has a variably controllable operating frequency and controls the image capturing operation in the first operational state, and said operating frequency can be lowered so that power consumption of said at least one of the control units can be lower than other of said control units that control operation other than the image capturing operation.