US 7,321,787 B2
Power management method and apparatus of wireless local area network module in computer system
Hyeong Seog Kim, Suwon-si (Korea, Republic of)
Assigned to LG Electronics Inc., Seoul (Korea, Republic of)
Filed on Jul. 17, 2003, as Appl. No. 10/620,620.
Claims priority of application No. 10-2002-0049198 (KR), filed on Aug. 20, 2002.
Prior Publication US 2004/0038707 A1, Feb. 26, 2004
Int. Cl. H04B 1/38 (2006.01)
U.S. Cl. 455—574  [455/254; 455/41.2] 14 Claims
OG exemplary drawing
 
1. A wireless communications device, comprising:
a communication sensitivity checking portion of the wireless communications device configured to check a sensitivity of at least one communications channel used to communicate with an external access point and to provide a sensitivity signal based on the checked sensitivity; and
a power mode changing portion of the wireless communications device configured to receive the sensitivity signal from the communication sensitivity checking portion and to change a power mode of the wireless communications device between a working mode and at least one sleep mode based on the sensitivity signal received from the communication sensitivity checking portion, wherein the power mode changing portion is configured to switch the power mode into the working mode once a predetermined time period elapses after the power mode has been switched to the at least one sleep mode, and wherein a length of the predetermined time period varies based on a value of a predefined sensitivity value.