# US 12,604,088 B2 · Image pickup apparatus capable of controlling power supply, its control method, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,088 B2 - Document ID: US12604088B2 - Status: Granted - Kind: B2 - Application number: 18/652,863 - Filed: 2024-05-02 - Published: 2024-11-28 - Granted: 2026-04-14 - Earliest claimed: 2023-05-24 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Satoshi Ishimaru - Web page: https://patentgrep.com/patent/US12604088B2 ## CPC - H04N 23/651: {for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera} - H04N 23/65: Control of camera operation in relation to power supply - H04N 23/663: for controlling interchangeable camera parts based on electronic image sensor signals - H04N 23/667: Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An image pickup apparatus is attachable to and detachable from an accessory and configured to set a first mode, and a second mode that consumes power less than that of the first mode. The image pickup apparatus includes a memory storing instructions, and a processor configured to execute the instructions to control the accessory by communicating with the accessory, limit power supply to the accessory in a case where the accessory is in a first state in which the accessory is operated by the power supplied from the image pickup apparatus and the image pickup apparatus is set to the second mode, and lift a limitation on the power supply to the accessory in a case where the processor determines that a specific condition is satisfied. ## Claims ### Claim 1 An image pickup apparatus attachable to and detachable from an accessory and configured to set a first mode, and a second mode that consumes power less than that of the first mode, the image pickup apparatus comprising: a memory storing instructions; and a processor configured to execute the instructions to: control the accessory by communicating with the accessory, limit power supply to the accessory in a case where the accessory is in a first state in which the accessory is operated by the power supplied from the image pickup apparatus and the image pickup apparatus is set to the second mode, and lift a limitation on the power supply to the accessory in a case where the processor determines that a specific condition is satisfied, wherein the accessory is set to either the first state or a second state that is different from the first state, wherein in a case where the image pickup apparatus is set to the second mode, the processor is configured to control the power supply to the accessory differently depending on whether the accessory is in the first state or in the second state. ### Claim 2 (depends on 1) The image pickup apparatus according to claim 1, wherein the processor is configured to: stop the power supply to the accessory in a case where the image pickup apparatus is set to the second mode in the first state, and resume the power supply to the accessory in a case where it is determined that the specific condition is satisfied. ### Claim 3 (depends on 1) The image pickup apparatus according to claim 1, wherein the processor is configured to determine whether the accessory is in the first state or the second state in which the accessory is operated without using the power supplied from the image pickup apparatus. ### Claim 4 (depends on 3) The image pickup apparatus according to claim 3, wherein the processor is configured to determine whether the accessory is in the first state or the second state, according to information received from the accessory. ### Claim 5 (depends on 1) The image pickup apparatus according to claim 1, wherein the first mode is a mode in which power consumption of the image pickup apparatus is not limited, and the second mode is a mode in which the power consumption of the image pickup apparatus is limited. ### Claim 6 (depends on 1) The image pickup apparatus according to claim 1, wherein the processor is configured not to lift the limitation on the power supply to the accessory in a case where the processor determines that the specific condition is not satisfied. ### Claim 7 (depends on 1) The image pickup apparatus according to claim 1, wherein the specific condition is that the image pickup apparatus has transitioned from the second mode to the first mode. ### Claim 8 (depends on 1) The image pickup apparatus according to claim 1, wherein the specific condition is that a user operation has been made to lift the limitation on the power supply to the accessory. ### Claim 9 (depends on 1) The image pickup apparatus according to claim 1, wherein the specific condition is that a predetermined period has elapsed since the limitation on the power supply to the accessory was started. ### Claim 10 (depends on 1) The image pickup apparatus according to claim 1, wherein user operation can switch the image pickup apparatus between the first mode and the second mode. ### Claim 11 (depends on 1) The image pickup apparatus according to claim 1, wherein the image pickup apparatus is switchable between the first mode and the second mode according to a type of a power source for the image pickup apparatus. ### Claim 12 (depends on 1) The image pickup apparatus according to claim 1, wherein the processor does not lift the limitation on the power supply to the accessory in a case where the processor limits the power supply to the accessory in the first state except for a case where the image pickup apparatus is set to the second mode, even if it is determined that the specific condition is satisfied. ### Claim 13 A method for controlling an image pickup apparatus attachable to and detachable from an accessory and configured to set a first mode, and a second mode that consumes power less than the first mode, the method comprising the steps of: a communication step of communicating with the accessory; a control step of controlling the accessory through a communication by: limiting power supply to the accessory in a case where the accessory is in a first state in which the accessory is operated by the power supplied from the image pickup apparatus and the image pickup apparatus is set to the second mode, and lifting a limitation on the power supply to the accessory in a case where the processor determines that a specific condition is satisfied, wherein the accessory is set to either the first or second states, different from the first state, wherein, in a case where the image pickup apparatus is set to the second mode, the processor is configured to control the power supply to the accessory differently depending on whether the accessory is in the first state or in the second state. ### Claim 14 (depends on 13) A non-transitory computer-readable storage medium storing a program that causes a computer to execute the method according to claim 13.