Patent ID: 8102737
Filing Date: 2012-01-24
Classification: G11B

Abstract:
1. A power saving method for an optical disk drive of a rugged electronic device, wherein the rugged electronic device having a watertight lid openably connected to the rugged electronic device and disposed outside the optical disk drive, the optical disk drive being electrically connected to a power switch, the power switch being electrically connected to a power supply, and the rugged electronic device having a controller for confirming whether an optical disk drive start command is received, the method comprising: detecting, by a sensor, whether the watertight lid is in an open state or a closed state, wherein, when the lid is closed, the sensor generates and sends to the controller a first detection signal corresponding to a closed state of the watertight lid; detecting, upon the closed state of the watertight lid, whether an optical disk exists in the optical disk drive with a read/write head of the optical disk drive; timing a predetermined time by the controller when the read/write head confirms that no optical disk exists; and sending out a first control signal to the power switch by the controller to turn off an electrical connection between the power supply and the optical disk drive after the predetermined time is reached.