ELECTRONIC DEVICE AND POWER SOURCE CONTROL DEVICE

• US 20110101913A1
• Filed: 11/02/2010
• Published: 05/05/2011
• Est. Priority Date: 11/04/2009
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: MATSUMOTO, Shuji, Kondou, Youichi
• Application Number:
  US12/917,542
• Publication Number:
  US 20110101913A1
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An electronic device including a first body having a first battery; and a second body having a second battery, the second body being configured to be electrically connected to the first body and separatable from the first body; the first body including: receiving a request for charge of battery from the first body or the second body; retrieving a remaining amount of battery inside the first body and the second body; comparing the battery of the first body and the battery of the second battery on the basis of the retrieved remaining amount of battery; carrying out a charging process for the requested battery indicated by the received request in case that a power source including the not-requested battery satisfies a predetermined requirement as a result of the comparing.

Claims

1. An electronic device comprising:

a first body having a first battery; and

a second body having a second battery, the second body being configured to be electrically connected to the first body and separatable from the first body;

wherein

the first body includes;

a receiving unit that receives a charge request from the first body or the second body, the charge request being associated with the first battery or the second battery;

a retrieval unit that retrieves a remaining amount of battery charge of the first battery and a remaining amount of charge of the second battery;

a comparison unit that compares the remaining amount of battery charge of the first battery and the remaining amount of battery charge of the second battery;

a control unit that carries out a charging process for the first battery or second battery associated with the charge request in a case that a power source including the first or second battery not associated with the charge request satisfies a condition based on the comparing.

2. The electronic device according to claim 1, wherein the condition is that the first or second battery not associated with the charge request is completely charged.

3. The electronic device according to claim 1, wherein the condition is that the remaining amount of charge in the first or second battery not associated with the charge request is greater than the remaining amount of charge in the first or second battery associated with the charge request.

4. The electronic device according to claim 1, wherein the condition is that the remaining amount of charge in the first or second battery not associated with the charge request is above a specified threshold.

5. The electronic device according to claim 1, wherein a power source of the first body charges the second battery.

6. The electronic device according to claim 1, wherein a power source of the second body charges the first battery.

7. A memory storing a computer program, which when executed by a processor of a first body which is connectable electrically to a second body and is separatable from the second body, causes the processor to perform a method comprising:

receiving a charge request for charging a battery, the charge request being associated with a first battery of the first body or a second battery of the second body;

retrieving a remaining amount of battery charge of the first battery and a remaining amount of battery charge of the second battery;

comparing the remaining amount of battery charge of the first battery and the remaining amount of battery charge of the second battery;

charging the first or second battery associated with the charge request in a case that a power source including the first or second battery not associated with the charge request satisfies a condition based on the comparing.

8. The memory storing the computer program according to claim 7, wherein the condition is that the first or second battery not associated with the charge request is completely charged.

9. The memory storing the computer program according to claim 7, wherein the condition is that the remaining amount of charge in the first or second battery not associated with the charge request is greater than the remaining amount of charge in the first or second battery associated with the charge request.

10. The memory storing the computer program according to claim 7, wherein the condition is that the remaining amount of charge in the first or second battery not associated with the charge request is above a specified threshold.