IP Library › Granted Patent US 12712378

Granted Patent B2

US 12712378 · App. 18/902,622 · Granted Aug 18, 2026

Image capturing apparatus, method for controlling same, and storage medium

Inventors: Yudai Itoi (Tokyo, JP); Yuki Tsujimoto (Tokyo, JP); Takuma Iwagami (Kanagawa, JP)

Assignee: CANON KABUSHIKI KAISHA

H02J7/977 H02J7/865 H02J7/975 H04N1/00885 H04N1/00904 H04N23/65 H04N23/651 H04N23/667 H04N25/709 H02J7/80 Y02E60/10

View Patent ↗

Loading inventors, assignments & file history…

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Order via The Patent Place →

Pre-filled with this patent's details

Quick Facts

Patent No.: US 12712378
App. No.: 18/902,622
Granted: Aug 18, 2026
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

An apparatus includes a load circuit, a power source, a power storage device, a charging circuit, and a temperature detection unit, a control unit that controls power supply to the load circuit according to a state of the apparatus. The control unit, in a first state, performs control so that power is supplied from the power source to the load circuit without power being supplied from the power storage device to the load circuit and, in a second state, performs control so that power is supplied from the power source and the power storage device to the load circuit, and the control unit sets a charging complete voltage of the power storage device via the charging circuit depending on a temperature detected by the temperature detection unit.

Claims (53)

1 . An apparatus comprising:

a load circuit;

a power source;

a power storage device;

a charging circuit that uses power from the power source to charge the power storage device; and

at least one processor;

which functions as:

a detection unit that detects a temperature of the power storage device,

a control unit that controls power supply to the load circuit according to a state of the apparatus, wherein

the control unit, in a first state of the apparatus, performs control so that power is supplied from the power source to the load circuit without power being supplied from the power storage device to the load circuit and, in a second state of the apparatus in which a maximum power consumption of the load circuit is greater than in the first state, performs control so that power is supplied from the power source and the power storage device to the load circuit,

the control unit sets a charging complete voltage of the power storage device via the charging circuit depending on the detected temperature, and

wherein in a case where a voltage from the power storage device is lower than a voltage from the power source, the control unit limits operation of a specific mode of the apparatus.

2 . The apparatus according to claim 1 , wherein

the load circuit is an image capturing sensor.

3 . The apparatus according to claim 1 , wherein

the power storage device is an electric double layer capacitor or a solid-state battery.

4 . The apparatus according to claim 1 , further comprising:

a temperature sensor,

wherein the detection unit detects a temperature of the power storage device by estimating a temperature of the power storage device based on an output of the temperature sensor.

5 . The apparatus according to claim 1 , wherein

in a case where the detected temperature is not higher than a predetermined value, the control unit sets the charging complete voltage to a first voltage, and in a case where the detected temperature is higher than the predetermined value, the control unit sets the charging complete voltage to a second voltage lower than the first voltage.

6 . The apparatus according to claim 1 , wherein

the specific mode is a still image capturing mode.

7 . The apparatus according to claim 1 , wherein

the specific mode is a still image continuous shooting mode for capturing still images at a speed faster than a predetermined speed.

8 . The apparatus according to claim 1 , wherein

the specific mode is an image capturing mode for simultaneously reading out signals of a plurality of pixels of an image capturing sensor.

9 . The apparatus according to claim 1 , wherein

the power source includes a battery and/or an external power supply apparatus.

10 . The apparatus according to claim 9 , wherein

the external power supply apparatus supplies power to the apparatus according to USB Power Delivery protocol.

11 . A method for controlling an apparatus including a load circuit, a power source that supplies power to the load circuit, and a power storage device that supplies power to the load circuit, the method comprising:

charging the power storage device using power from the power source;

detecting a temperature of the power storage device;

controlling power supply to the load circuit, wherein

in a first state of the apparatus, control is performed so that power is supplied from the power source to the load circuit without power being supplied from the power storage device to the load circuit and, in a second state in which a maximum power consumption of the load circuit is greater than in the first state, control is performed so that power is supplied from the power source and the power storage device to the load circuit,

in the charging, a charging complete voltage of the power storage device is changed depending on the detected temperature, and

wherein in a case where a voltage from the power storage device is lower than a voltage from the power source, the controlling limits operation of a specific mode of the apparatus.

12 . The method according to claim 11 , further comprising:

detecting a temperature of the power storage device by estimating a temperature of the power storage device based on an output of a temperature sensor.

13 . The method according to claim 11 , wherein

in a case where the detected temperature is not higher than a predetermined value, the controlling sets the charging complete voltage to a first voltage, and in a case where the detected temperature is higher than the predetermined value, the controlling sets the charging complete voltage to a second voltage lower than the first voltage.

14 . A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method for controlling an apparatus including a load circuit, a power source that supplies power to the load circuit, and a power storage device that supplies power to the load circuit, the method including: