Method for detecting size of the optical disk and ejecting optical disk
AssigneeLite-On It Corporation
InventorsSung-San Chang, Rong-Son Jeng, Chin-Lung Huang
Life of this patent
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Abstract
A method for detecting a size of an optical disk loaded in an optical disk drive is disclosed. The optical disk drive has an optical pickup head, and the initial position of the optical pickup head is located on the outer side of a track. The steps of the method are described as follows. First, the optical disk is loaded. Then, the optical pickup head is moved from the initial position to a first position, and a laser beam is irradiated simultaneously. The laser beam reflected by the optical disk is received by the optical pickup head. According to the condition of the reflected laser beam received by the optical pickup head, the size of the disk can be determined.
Claims10
A method for detecting a size of an optical disk, the optical disk loaded in an optical disk drive having an optical pickup head, and an initial position of the optical pickup head located on an outer side of a track, the method comprising the steps of:
- loading the optical disk;
- moving the optical pickup head from the initial position to a first position and irradiating a laser beam simultaneously and continuously, and receiving the reflected laser beam from the optical disk;
- and
- determining a size of the optical disk according to the laser beam reflected by the optical disk received by the optical pickup head during the time when the optical pickup moves from the initial position to the first position.
A method for ejecting an optical disk loaded in an optical disk drive, the optical disk drive having an optical pickup head, and an initial position of the optical pickup head located in an outer side of a track, the method comprising the steps of:
- loading the disk;
- moving the optical pickup head from the initial position to a first position and irradiating a laser beam simultaneously and continuously, and the laser beam reflected by the optical disk received by the optical pickup head;
- determining a size of the optical disk according to the laser beam reflected by the optical disk received by the optical pickup head during the time when the optical pickup moves from the initial position to the first position;
- and
- determining an ejection length according to the determined size of the disk when an ejection signal is received.
Dependencies are inferred from the claim text.