ELECTRONIC APPARATUS, CONTROL METHOD, AND RECORDING MEDIUM

• US 20120161718A1
• Filed: 12/14/2011
• Published: 06/28/2012
• Est. Priority Date: 12/22/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Nishida, Tokuro
• Granted Patent: US 9,197,083 B2
• Time in Patent Office: Days
• US Class Current: 320/150
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H02J 7/0031 using battery or load disconnect circuits H02J9/002 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

There is provided an electronic apparatus that can properly control a power state of an electronic apparatus by using a temperature of a battery pack. The electronic apparatus detects a temperature of a battery pack and a remaining capacity of the battery pack. If the temperature of the battery pack is less than or equal to a predetermined temperature, the electronic apparatus performs process for turning a power state of the electronic apparatus from ON to OFF based on the remaining capacity of the battery pack.

Claims

1. An electronic apparatus comprising:

a detection unit that detects a temperature of a battery pack and a remaining capacity of the battery pack; and

a control unit that performs predetermined process for turning a power state of the electronic apparatus from ON to OFF based on the remaining capacity of the battery pack if the temperature of the battery pack is less than or equal to a predetermined temperature.

2. The electronic apparatus according to claim 1, wherein, if the temperature of the battery pack is more than the predetermined temperature, the control unit performs the predetermined process based on a voltage of the battery pack.

3. The electronic apparatus according to claim 1, wherein the control unit does not perform the predetermined process if the temperature of the battery pack is less than or equal to the predetermined temperature and the remaining capacity of the battery pack is not equal to or less than a predetermined remaining capacity.

4. The electronic apparatus according to claim 1, wherein, if the temperature of the battery pack is less than or equal to the predetermined temperature and the remaining capacity of the battery pack is equal to or less than a predetermined remaining capacity, the control unit performs the predetermined process even if a voltage of the battery pack is more than a predetermined voltage.

5. The electronic apparatus according to claim 4, wherein the control unit performs the predetermined process if the temperature of the battery pack is more than the predetermined temperature and the voltage of the battery pack is less than or equal to the predetermined voltage.

6. The electronic apparatus according to claim 4, wherein, if the temperature of the battery pack is more than the predetermined temperature and the voltage of the battery pack is more than the predetermined voltage, the control unit does not perform the predetermined process even if the remaining capacity of the battery pack is equal to or less than a predetermined remaining capacity.

7. The electronic apparatus according to claim 1, wherein the detection unit detects a voltage of the battery pack.

8. The electronic apparatus according to claim 1, wherein the temperature of the battery pack is detected by using at least one of information indicating a temperature of a battery cell acquired from the battery pack and information indicating the temperature of the battery pack acquired from the battery pack.

9. The electronic apparatus according to claim 1, wherein the predetermined process includes process for stopping an operation of the electronic apparatus and process for controlling power supply of the electronic apparatus to turn off the power of the electronic apparatus.

10. The electronic apparatus according to claim 1, wherein the predetermined process includes process for displaying information indicating that the remaining capacity of the battery pack is not sufficient.

11. The electronic apparatus according to claim 1, wherein the electronic apparatus is an image capturing apparatus.

12. The electronic apparatus according to claim 1, wherein the electronic apparatus includes at least one of a mobile phone, a digital still camera, a digital camera, and a music player.

13. A control method for controlling an electronic apparatus, comprising:

detecting a temperature of a battery pack;

detecting a remaining capacity of the battery pack; and

performing predetermined process for turning a power state of the electronic apparatus from ON to OFF based on the remaining capacity of the battery pack if the temperature of the battery pack is less than or equal to a predetermined temperature.

14. A non-transitory computer-readable recording medium that stores a computer-executable program for causing a computer to execute a control method for controlling an electronic apparatus, the control method comprising:

detecting a temperature of the battery pack;

detecting a remaining capacity of the battery pack; and

performing predetermined process for turning a power state of the electronic apparatus from ON to OFF based on the remaining capacity of the battery pack if the temperature of the battery pack is less than or equal to a predetermined temperature.