Electronic apparatus, control method, and recording medium

• US 9,197,083 B2
• Filed: 12/14/2011
• Issued: 11/24/2015
• 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
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US13/325,949
• Publication Number:
  US 20120161718A1
• Time in Patent Office: 1,441 Days
• Field of Search: 320/150, 320/154, 320/160, 320/104, 429/61, 429/62
• US Class Current: 1/1
• 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 voltage detection unit that detects a voltage of a battery device;

an obtaining unit that obtains a remaining capacity of the battery device detected by the battery device from the battery device;

a temperature detection unit that detects a temperature; and

a control unit that (a) performs, according to whether a temperature detected by the temperature detection unit is higher than a predetermined temperature, one of a first process and a second process, and (b) performs the second process if a temperature detected by the temperature detection unit is not higher than the predetermined temperature, wherein the first process includes a process for checking a voltage detected by the voltage detection unit, wherein the first process is performed for controlling whether to perform a process for turning off the electronic apparatus, wherein the second process includes a process for checking a remaining capacity of the battery device obtained by the obtaining unit without checking a voltage detected by the voltage detection unit, and wherein the second process is performed for controlling whether to perform the process for turning off the electronic apparatus.

2. The electronic apparatus according to claim 1, wherein, if a temperature detected by the temperature detection unit is higher than the predetermined temperature, the control unit performs the first process.

3. 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.

6. The electronic apparatus according to claim 1, wherein, if a temperature detected by the temperature detection unit is higher than the predetermined temperature and a voltage detected by the voltage detection unit is higher than a predetermined voltage, the control unit does not perform a process for turning off the electronic apparatus.

7. The electronic apparatus according to claim 1, wherein, if a temperature detected by the temperature detection unit is higher than the predetermined temperature and a voltage detected by the voltage detection unit is not higher than a predetermined voltage, the control unit performs a process for turning off the electronic apparatus.

8. The electronic apparatus according to claim 1, wherein, if a temperature detected by the temperature detection unit is not higher than the predetermined temperature and a remaining capacity obtained by the obtaining unit is more than a predetermined remaining capacity, the control unit does not perform a process for turning off the electronic apparatus.

9. The electronic apparatus according to claim 1, wherein, if a temperature detected by the temperature detection unit is not higher than the predetermined temperature and a remaining capacity obtained by the obtaining unit is not more than a predetermined remaining capacity, the control unit performs a process for turning off the electronic apparatus.

4. A method for controlling an electronic apparatus comprising:

detecting a voltage of a battery device;

obtaining a remaining capacity of the battery device detected by the battery device from the battery device;

detecting a temperature; and

performing, according to whether a detected temperature is higher than a predetermined temperature, one of a first process and a second process, wherein the first process includes a process for checking a detected voltage, wherein the first process is performed for controlling whether to perform a process for turning off the electronic apparatus, wherein the second process includes a process for checking a remaining capacity of the battery device obtained from the battery device without checking a detected voltage, and wherein the second process is performed for controlling whether to perform the process for turning off the electronic apparatus; and

performing the second process if a detected temperature is not higher than the predetermined temperature.

10. The method according to claim 4, further comprising performing the first process if a detected temperature is higher than the predetermined temperature.

11. The method according to claim 4, further comprising, if a detected temperature is higher than the predetermined temperature and a detected voltage is not higher than a predetermined voltage, performing a process for turning off the electronic apparatus.

12. The method according to claim 4, further comprising, if a detected temperature is not higher than the predetermined temperature and a remaining capacity obtained from the battery device is not more than a predetermined remaining capacity, performing a process for turning off the electronic apparatus.

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

detecting a voltage of a battery device;

obtaining a remaining capacity of the battery device detected by the battery device from the battery device;

detecting a temperature; and

performing, according to whether a detected temperature is higher than a predetermined temperature, one of a first process and a second process, wherein the first process includes a process for checking a detected voltage, wherein the first process is performed for controlling whether to perform a process for turning off the electronic apparatus, wherein the second process includes a process for checking a remaining capacity of the battery device obtained from the battery device without checking a detected voltage, and wherein the second process is performed for controlling whether to perform the process for turning off the electronic apparatus; and

performing the second process if a detected temperature is not higher than the predetermined temperature.