US 7,543,167 B2
Information processing apparatus and power control method for use in the same
Masanori Nakano, Ome (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Filed on Aug. 30, 2005, as Appl. No. 11/213,951.
Claims priority of application No. 2004-316514 (JP), filed on Oct. 29, 2004.
Prior Publication US 2006/0095799 A1, May 04, 2006
Int. Cl. G06F 1/26 (2006.01); G06F 1/30 (2006.01); G06F 1/32 (2006.01)
U.S. Cl. 713—320  [713/300; 713/310; 713/321; 713/322; 713/323; 713/324; 713/330; 713/340] 10 Claims
OG exemplary drawing
 
1. An information processing apparatus that is powerable by a battery, comprising:
a main body in which one of a first type battery or a second type battery having different ratings is detachably mounted, a rating of the first type battery being lower than a rating of the second type battery;
a processor that is provided in the main body;
an acquiring unit configured to acquire rating information, wherein the rating information is based on battery type information stored in a battery that is mounted in the main body, that is indicative of a rated output and a rated capacity of the battery that is mounted in the main body;
a first determining unit configured to determine whether the battery that is mounted in the main body is the first type battery or the second type battery based on the acguired rating information;
a second determining unit configured to determine whether a type of the processor is a first type processor with an operating frequency that is higher than a specified frequency, or a second type processor with an operating frequency that is lower or equal to the specified frequency when the battery that is mounted in the main body is the first type battery; and
a controlling unit configured to execute a power control process to set an upper limit of an operation speed of the processor in accordance with the determined type of the processor when the battery that is mounted in the main body is the first type battery.