Optical disc drive and method thereof

An optical disc drive, optical disc technology, applied in the directions of optical discs, instruments, disc-shaped record carriers, etc., can solve the problem of not being able to optimize the playback rate of the disc, and achieve the effect of improving the playback rate of the disc

Inactive Publication Date: 2008-10-29
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the above-mentioned problem of not being able to optimize the playback rate of optical discs, an optical disc drive and its control method are provided, which determine operating parameters by classifying defect types on optical discs, thereby improving the playback rate of optical discs

Method used

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  • Optical disc drive and method thereof
  • Optical disc drive and method thereof
  • Optical disc drive and method thereof

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Embodiment Construction

[0017] It must be noted here that the different implementation modes or examples presented in the following disclosure are used to illustrate different technical features disclosed in the present invention, and the specific examples or arrangements described are used to simplify the present invention. It is not intended to limit the invention. In addition, the same reference numerals and symbols may be used repeatedly in different implementations or examples, and these repeated reference numerals and symbols are used to describe the content disclosed in the present invention, rather than to represent differences between different implementations or examples. relation.

[0018] figure 1 It is a block diagram of an optical disc player according to an embodiment of the present invention, however, the present invention can also be applied to an optical disc recorder at the same time. The optical disc player 10 includes an optical head 100 , a controller 102 , a servo unit 104 , ...

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Abstract

An optical disc drive and method thereof. The optical disc drive comprises a rotating means, an optical pickup head, a servo unit, and a controller. The rotating means rotates an optical disc. The optical pickup head generates an optical beam to detect defects in a predetermined range on the optical disc. The servo unit, coupled to the optical pickup head, is responsive to an operating parameter to control the optical pickup head. The controller, coupled to the optical pickup head and the servo unit, identifies a defect type based on the defect detection result; and determines the operating parameter of the servo unit according to the defect type.

Description

technical field [0001] The invention relates to an optical disc drive, in particular to an optical disc drive with improved playback rate and a control method thereof. Background technique [0002] Optical discs include read-only types (such as CD-DA, CD-ROM, DD-ROM, DVD-Video, and DVD-ROM), write-once recording types (such as CD-R , DD-R, DVD-R and DVD+R), and rewritable types (CD-RW, DD-RW, DVD-RW, DVD+RW, DVD-RAM and Blue-ray Disc). Optical drives access optical discs using a laser in the form of a continuous spiral or concentric circles. Among them, the data will be pre-recorded in the manufacturing process for read-only media, and the data can be written for recordable or writable media. In the following description, playing an optical disc will mean reading and writing (recording and playback). [0003] In the optical disc drive, the optical head reads the track information, so that the servo unit can follow the track correctly regardless of the 3-dimensional direct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/09
CPCG11B2220/2537G11B20/1816
Inventor 曾德旺朱自强
Owner MEDIATEK INC
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