Patent ID: 9674473
Date: 2017-06-06
CPC Classifications: H04N

Claim:
1. An electronic device comprising: at least one processor; and at least one memory having stored thereon instructions that when executed by the at least one processor cause the at least one processor to function as: a communication unit that can communicate with an image pickup apparatus; a state change unit that can change an operation state of the electronic device to a first state in which an operation corresponding to an image pickup of a subject by the image pickup apparatus can be performed and a second state in which power consumption is lower than power consumption in the first state; and a timing calculation unit that calculates an activation timing for starting an operation for changing the operation state of the electronic device from the second state to the first state by the state change unit, wherein the timing calculation unit calculates the activation timing on the basis of information related to a timing for picking up the image of the subject by the image pickup apparatus which is received from the image pickup apparatus via the communication unit, wherein the activation timing calculated by the timing calculation unit is different depending on whether the information related to the timing for picking up the image of the subject is first information or second information that is different from the first information, wherein the state change unit starts the operation for changing the operation state of the electronic device from the first state to the second state after the activation timing is calculated by the timing calculation unit, and wherein the state change unit starts the operation for changing the operation state of the electronic device from the second state to the first state at the activation timing.