US 7,321,975 B2
Method for controlling power supply to function modules selectively based on function modules necessary for predetermined program execution in mobile device
Hong-chan Park, Suwon (Korea, Republic of); and Han-sub Park, Anyang (Korea, Republic of)
Assigned to Samsung Electronics Co., Ltd., Suwon-Si (Korea, Republic of)
Filed on Jan. 26, 2004, as Appl. No. 10/763,225.
Claims priority of application No. 10-2003-0005934 (KR), filed on Jan. 29, 2003.
Prior Publication US 2004/0150661 A1, Aug. 05, 2004
Int. Cl. G06F 1/32 (2006.01)
U.S. Cl. 713—324  [713/320] 16 Claims
OG exemplary drawing
 
1. A mobile device, comprising:
a plurality of modules;
a control unit executing a predetermined program that uses at least one of the plurality of modules based on a program initiation control signal;
a power supply providing power to drive the plurality of modules; and
a power control unit receiving information on the program that is executed by the control unit and selectively, based on predetermined selection information, supplying the power to the at least one module,
wherein the power control unit comprises:
a look-up table, as the predetermined selection information, having data for selectively identifying an on/off operation on a driving of respective modules, depending on the information from the control unit of which program has been executed; and
a switching unit selectively performing the identified on/off operation of the power supplied to the respective modules according to the look-up table.