Apparatus and method for controlling tilt in optical disc device

An apparatus for controlling tilt in an optical disc device having a lens, the apparatus comprising:

• a controller configured to select a dynamic tilt control mode only when a current operating mode of the optical disc device is a record mode for recording data on an optical disc inserted in the optical disc device and to select a static tilt control mode when the current operating mode of the optical disc device is a play mode;
• and
• a servo unit configured to control tilt of the lens based on the selected tilt control mode, wherein the controller is adapted to detect a write buffer error condition and to suspend data processing while maintaining the dynamic tilt control mode when the write buffer error condition occurs.

A method for controlling tilt in an optical disc device, the method comprising:

• determining whether an optical disc in the optical disc device is subject to defect management;
• and
• selecting a static tilt control mode or a dynamic tilt control mode according to the determination, wherein the static tilt control mode is selected when a host connected to the optical disc device supports the defect management, and the dynamic tilt control mode is selected when the host does not support the defect management, wherein said selecting the static tilt control mode or the dynamic tilt control mode comprises selecting the static tilt control mode when the optical disc is one of a DVD-RAM or a recordable blue-ray disc (BD-R/RE) that are subject to the defect management.

A method for controlling tilt in an optical disc device, the method comprising:

• determining whether an optical disc in the optical disc device is subject to defect management;
• and
• selecting a static tilt control mode or a dynamic tilt control mode according to the determination, wherein the static tilt control mode is selected when a host connected to the optical disc device supports the defect management, and the dynamic tilt control mode is selected when the host does not support the defect management, wherein said selecting the static tilt control mode or the dynamic tilt control mode comprises selecting the static tilt control mode or the dynamic tilt control mode according to whether the host supports the defect management when the optical disc is one of a DVD-R/RW or a DVD+R/RW, and wherein whether the host supports the defect management is determined through interfacing with the host during system startup, or is determined by a command transmitted from the host when a defect occurs.