Battery management system

• US 6,522,100 B2
• Filed: 10/15/2001
• Issued: 02/18/2003
• Est. Priority Date: 10/16/2000
• Status: Active Grant

• Current Assignee: Sony Limited (Sony Group Corp.)
• Original Assignee: Sony Limited (Sony Group Corp.)
• Inventors: Hansford, Jan
• Primary Examiner(s): Tso, Edward H.
• Assistant Examiner(s): LUK, LAWRENCE W
• Application Number:
  US09/977,851
• Publication Number:
  US 20020043955A1
• Time in Patent Office: 491 Days
• Field of Search: 320/106, 320/137, 320/110, 320/112, 429/61, 368/55
• US Class Current: 320/106
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries

Abstract

The present invention relates to a mobile terminal (1) for a wireless telecommunication system, with a main body (2) and a battery pack (3) to be connected to said main body (2). The main body (2) comprises a first frequency generating means (4) for generating a first frequency information and a processing means (5) for processing said first frequency information to provide a real time information. The battery pack (3) comprises a second frequency generating means (12) for generating a second frequency information and control means (11) for controlling the transmission of said second frequency information to said processing means (5). The processing means (5) uses the second frequency information for providing updated real time information, whereby the control means (11) comprises a battery pack memory (13) for storing first information relating to an update value of the second frequency information. The first information can thereby be a calibration value for calibrating the second frequency information or an indication value indicating that a calibration value for the second frequency information is stored in the main body (2).

Claims

1. Mobile terminal for a wireless telecommunication system, with a main body and a battery pack to be connected to said main body, said main body comprising a first frequency generating means for generating a first frequency information and a processing means for processing said first frequency information to provide a real time information,

said battery pack comprising a second frequency generating means for generating a second frequency information and control means for controlling the transmission of said second frequency information to said processing means,

said processing means using said second frequency information for providing updated real time information,

whereby said control means comprises a battery pack memory for storing first information relating to an updated value of said second frequency information,

whereby said first information stored in said battery pack memory is a calibration value for said second frequency information, and

whereby said calibration value is stored in said battery pack memory when said battery pack is connected to said main body for the first time.

2. Mobile terminal according to claim 1,

characterized in, that said processing means comprises a main body memory for storing battery identity information, whereby each time a battery pack is connected to said main body, said processing means reads a battery pack identity information stored in said battery pack memory and checks if said battery pack identity information is already stored in said main body memory.

3. Mobile terminal according to claim 1,

whereby said calibration value is transmitted by said control means to said processing means and used by said processing means for providing updated real time information.

4. Mobile terminal according to claim 3,

characterized in, that said calibration value is prestored in said battery pack memory.

5. Mobile terminal for a wireless telecommunications system, with a main body and a battery pack to be connected to said main body, said main body comprising a first frequency generating means for generating a first frequency information and a processing means for processing said first frequency information to provide a real time information,

said battery pack comprising a second frequency generating means for generating a second frequency information and control means for controlling the transmission of said second frequency information to said processing means,

said processing means using said second frequency information for providing updated real time information,

whereby said control means comprises a battery pack memory for storing first information relating to an updated value of said second frequency information,

whereby said first information stored in said battery pack memory is a calibration value for said second frequency information, whereby said calibration value is transmitted by said control means to said processing means and used by said processing means for providing updated real time information, and

whereby said calibration value is stored in said battery pack memory when said battery pack is connected to said main body for the first time.

6. Mobile terminal for a wireless telecommunications system, with a main body and a battery pack to be connected to said main body, said main body comprising a first frequency generating means for generating a first frequency information and a processing means for processing said first frequency information to provide a real time information,

said battery pack comprising a second frequency generating means for generating a second frequency information and control means for controlling the transmission of said second frequency information to said processing means,

said processing means using said second frequency information for providing updated real time information,

whereby said control means comprises a battery pack memory for storing first information relating to an updated value of said second frequency information,

whereby said first information stored in said battery pack memory is a calibration value for said second frequency information,

whereby said calibration value is transmitted by said control means to said processing means and used by said processing means for providing updated real time information, and

whereby a or said main body memory of said processing means is adapted to store an update value of said second frequency information and said first information stored in said battery pack memory indicates if an update value of said second frequency information is stored in said main body memory.

7. Mobile terminal according to claim 6,

characterized in, that if said battery pack is connected to said main body for a first time, the processing means performs a calibration of the second frequency information and stores a calibration value as said update value in said main body memory.

8. Mobile terminal according to claim 6,

characterized in, that each time said battery pack is connected to said main body, said processing means checks if an update value is stored in said battery pack memory.

9. Mobile terminal according to claim 8,

characterized in, that in case said processing means detects that an update value is stored in said battery pack memory, it provides updated real time information on the basis of the updated value stored in said main body memory.

10. Mobile terminal according to claim 6,

characterized in, that said battery pack memory is adapted to store a second information indicating if a battery identification information and a second frequency information had been stored in said main body memory.

11. Mobile terminal according to claim 10,

characterized in, that in case said battery pack memory is disconnected from said main body, a last second frequency information is stored in said main body memory together with said battery pack identification information.

12. Mobile terminal according to claim 6,

characterized in, that said battery pack memory is adapted to store third information indicating if a temperature level had been exceeded.

13. Mobile terminal according to claim 6,

characterized in, that said battery pack memory is adapted to store fourth information indicating if a wrong charging device had been connected to the main body to charge the battery pack.