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Method for defining optical writing-in powder and its optical disk access system

An access system, optical writing technology, applied to optical recording systems, optical recording/reproduction, optical recording/reproduction/erasing methods, etc., can solve the impact, improve, and cannot perform V2 linear velocity power correction Action and other issues

Inactive Publication Date: 2005-01-19
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since Wpc2 has exceeded the OPC speed limit WL, the possibility of errors in the power calibration results is greatly increased, so it has a significant adverse effect on the power calibration operation of the optical disc.
Therefore, because the optical drive cannot perform the power correction action of the V2 linear speed, it is forced to give up providing the writing option such as the V2 linear speed.

Method used

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  • Method for defining optical writing-in powder and its optical disk access system
  • Method for defining optical writing-in powder and its optical disk access system
  • Method for defining optical writing-in powder and its optical disk access system

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Embodiment Construction

[0024] Figure 4A schematic diagram of an optical disc access system 30 of the present invention is shown. The optical disc access system 30 includes: an access device 32 for writing data into an optical disc 34 with a constant linear velocity (CLV) format; and a control device 36 for deciding to write data to the optical disc 34 Incoming optical writing power, and controls the operation of the optical disc access system 30.

[0025] The optical disc 34 is disc-shaped and symmetrical to a central axis 31 . The optical disc 34 sequentially includes a center portion 38 , an inner edge power correction area 40 , a data recording area 46 , and a final possible termination area 48 from the center to the outer edge. The above-mentioned inner edge power correction area 40 is set on the inner ring portion of the optical disc 34 (that is, outside the central portion 38) for optical power correction; the last possible termination area 48 is set on the outer ring portion of the optical...

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Abstract

The present invention relates to a determination method of optical writing power and its optical disk access system. In addition to traditional internal edge power calibration zone an external edge power calibration zone is added on the external edge portion of constant linear velocity format erasble optical disk, if according to the data writing speed selected by user, when the optical disk rotating speed required for power regulation and calibration in the erasable optical disk internal edge power calibration zone will be greater than optical power calibration limit, the optical disk access system can utilzie external edge power calibration zone and uses lower optical disk rotating speed to make writing power regulation and calibration so as to correctness of power regulation and calibration.

Description

technical field [0001] The invention relates to a method for determining optical writing power and an optical disk access system. In addition to the traditional inner edge power correction area, an outer edge power correction area is added on the outer edge of a CLV format optical disc, and the optical disc can be flexibly selected. The power calibration is performed in one of the inner power calibration area and the outer power calibration area to ensure the correctness of the power calibration. Background technique [0002] With the advancement of electronic technology and the reduction of cost, optical storage devices (optical storage devices), such as rewritable optical drives (CD-R / CD-RW drive), etc., have been widely used in computer systems, and have gradually become Its a standard peripheral access device. Generally speaking, before writing data into an optical disc (optical disc), this type of optical disc drive will first perform an optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/00G11B7/0045G11B7/007
Inventor 王威陈佐才颜孟新
Owner BENQ CORP