IP Library › Granted Patent US 12,160,647
Granted Patent B2
US 12,160,647 · App. 18/065,498 · Granted Dec 3, 2024

Image capture apparatus and control method

Inventor: Yasusaburo Degura (Tokyo, JP)
Assignee: Canon Kabushiki Kaisha
H04N23/52G03B17/02G03B17/55H04N23/57H04N23/60H04N23/65H04N23/651H05K7/20136H05K7/20172H05K7/20209
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Quick Facts
Patent No.
US 12,160,647
App. No.
18/065,498
Granted
Dec 3, 2024
Kind
B2
Abstract

An image capture apparatus comprises a connection unit that connects a cooling device, a detection unit that detects that the cooling device is connected, and a control unit that, when the cooling device is connected to the image capture apparatus, controls power for driving the cooling device based on a power control method for driving the cooling device and an operational state of the image capture apparatus.

Claims (44)

1. An image capture apparatus comprising:

a connection interface that connects a cooling device;

and

a controller that controls power for driving the cooling device,

wherein in a case where the power control method of the cooling device is a power control method that involves a variation in magnetic field, and the image capture apparatus is performing a predetermined operation in which image quality is changed in response to the variation in magnetic field,

the controller controls the power for driving the cooling device so as to reduce a cooling capacity of the cooling device.

2. The apparatus according to claim 1 , wherein

the power control method includes a first power control method of linearly changing a voltage to be applied to the cooling device, and a second power control method of changing, using pulse width modulation, a period in which a voltage is applied to the cooling device, and

the controller performs control such that, in a case of the second power control method, a first power is supplied in a case where the cooling device is not performing the predetermined operation, and a second power, which is smaller than the first power, is supplied in a case where the image capture apparatus is performing the predetermined operation.

3. The apparatus according to claim 1 , wherein the predetermined operation is an operation of reading an image signal from image capturing unit.

4. The apparatus according to claim 1 , wherein the controller stops power supply to the cooling device in a case where it is not possible to determine the power control method of the cooling device.

5. The apparatus according to claim 1 , wherein the controller transmits, to the cooling device, control information for controlling power for driving the cooling device based on the power control method of the cooling device.

6. The apparatus according to claim 1 , wherein the controller determines whether to drive the cooling device before supplying power to drive the cooling device.

7. The apparatus according to claim 6 , wherein the controller determines whether to drive the cooling device based on information relating to a temperature of the image capture apparatus.

8. The apparatus according to claim 6 , wherein the controller determines whether to drive the cooling device based on information input from operation unit of the image capture apparatus.

9. The apparatus according to claim 1 , further comprising

a detector that detects that the cooling device is connected,

wherein the controller controls the power for driving the cooling device in a case where the cooling device is connected to the image capture apparatus.

10. A method of controlling an image capture apparatus to which a cooling device can be connected, comprising:

controlling power for driving the cooling device,

wherein in a case where the power control method of the cooling device is a power control method that involves a variation in magnetic field, and the image capture apparatus is performing a predetermined operation in which image quality is changed in response to the variation in magnetic field,

the controlling controls the power for driving the cooling device so as to reduce a cooling capacity of the cooling device.

11. The method according to claim 10 , wherein

the power control method includes a first power control method of linearly changing a voltage to be applied to the cooling device, and a second power control method of changing, using pulse width modulation, a period in which a voltage is applied to the cooling device, and

wherein

the controlling performs control such that, in a case of the second power control method, a first power is supplied in a case where the cooling device is not performing the predetermined operation, and a second power, which is smaller than the first power, is supplied in a case where the image capture apparatus is performing the predetermined operation.

12. The method according to claim 10 , wherein the predetermined operation is an operation of reading an image signal from an image capturing unit.

13. The method according to claim 10 , wherein the method further comprises

stopping power supply to the cooling device in a case where it is not possible to determine the power control method of the cooling device.

14. The method according to claim 10 , wherein the method further comprises

transmitting, to the cooling device, control information for controlling power for driving the cooling device based on the power control method of the cooling device.

15. The method according to claim 10 , wherein the method further comprises

determining whether to drive the cooling device before supplying power to drive the cooling device.

16. The method according to claim 15 , wherein the method further comprises

determining whether to drive the cooling device based on information relating to a temperature of the image capture apparatus.

17. The method according to claim 15 , wherein the method further comprises

determining whether to drive the cooling device based on information input from an operation unit of the image capture apparatus.

18. The method according to claim 10 , wherein the method further comprises

detecting that the cooling device is connected,

wherein the controlling controls the power for driving the cooling device in a case where the cooling device is connected to the image capture apparatus.

19. A non-transitory computer-readable storage medium storing a program that causes a computer to execute a method of controlling an image capture apparatus to which a cooling device can be connected, comprising:

controlling power for driving the cooling device,

wherein in a case where the power control method of the cooling device is a power control method that involves a variation in magnetic field, and the image capture apparatus is performing a predetermined operation in which image quality is changed in response to the variation in magnetic field,

the controlling controls the power for driving the cooling device so as to reduce a cooling capacity of the cooling device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2023
From: DEGURA, YASUSABURO
To: CANON KABUSHIKI KAISHA
Reel/Frame 062319/0583 →
Priority Claims (1)
JP 2021-205460 · Dec 17, 2021 · national
Continuity (1)
Related Publication 20230199290A1 · Jun 22, 2023