Patent ID: 8254228

Claim:
An optical disc drive, comprising: a controller for controlling access to an optical disc; and an actuator for driving the optical disc by being controlled by the controller, the controller comprising: an interface for performing one of transmitting and receiving a command issued from external and data; a temporary memory unit for temporarily storing the data; a rotation control unit for controlling the actuator; an optical control unit for performing one of writing to the optical disc and reading from the optical disc; a processor for controlling the interface, the temporary memory unit, the rotation control unit, and the optical control unit; and a hibernation control unit for controlling the processor to shift to a hibernate state when a predetermined condition is satisfied and controlling the processor to recover from the hibernate state into an active state when the interface receives a first command, wherein: the hibernation control unit controls the processor to recover into the active state when the processor is in the hibernate state and the interface receives the first command; and the processor is configured to: receive the first command from the interface and instruct the rotation control unit to drive the optical disc at a predetermined target rotational speed; instruct the optical control unit to perform one of the read and write specified by the first command; transmit a completion notification of the first command to the interface with a delay; and receive a second command after transmitting the delayed completion notification of the first command and instruct the optical control unit to perform one of the read and write specified by the second command.