Regulating method for writing-in strategy of optical disc
An adjustment method and a technology for countermeasures, which can be applied in optical recording/reproducing/erasing methods, optical recording systems, etc., and can solve the problems of cost, time and labor.
Inactive Publication Date: 2009-07-01
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Problems solved by technology
Faced with so many write strategy parameters with no rules at all, existing methods can only find the most suitable write strategy (Writestrategy) parameters by trial and error, which is not only time-consuming, laborious and costly, but how to improve The shortcoming of above-mentioned existing means is for developing the main purpose of the present invention
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[0035] See figure 2 , is a schematic diagram for an optical writing device to write data to a disk 31 to be written with a set of writing countermeasure data. From the figure, we can clearly see that the optical writing device (not shown in this figure) (shown) includes an optical read-write head 30 , and the optical read-write head 30 emits a laser beam in response to the control of a laser light power waveform 301 to write data into the disc 31 to be written. The laser optical power waveform 301 is generated according to the data that should be written into the countermeasure data set, which mainly includes a rising edge 3011 position and a falling edge 3012 position for determining the laser beam writing power waveform 301. parameter and the falling edge parameter. Wherein the rising edge parameter mainly includes a first time point 302 representing that the laser beam writing power changes from a low level 3014 to a high level 3013, and the falling edge parameter mainly i...
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The present invention is a method for adjusting a disk writing strategy, which is applied in the process of a disk writing device writing data to a disk to be written. The method includes the following steps: using a first writing strategy The action of writing data to the disk to be written is performed by collecting data, and then forming a first-type data storage structure and a second-type data storage structure with different lengths on the disk to be written; A first length error mean value of the first-type data storage structure itself of a first length and a second length of a second-type data storage structure with at least a second length and a third length on both sides of the first-type data storage structure an error mean value and a third length mean value; and according to the size of the first length error mean value, the second length error mean value and the third length mean value, the writing of the first type of data storage structure corresponding to the first length is adjusted Countermeasure data.
Description
technical field [0001] The invention relates to a method for adjusting a disk writing strategy, in particular to a method for adjusting a disk writing strategy applied to a disk writing device in the process of writing data to a disk to be written. Background technique [0002] Read-only disc 10 (Compact Disc Read Only Memory, referred to as CD-ROM) is a storage medium that can be used to store digital data. Usually, the read-only disc 10 (CD-ROM) can only be used to read recorded The data on it cannot be written into the read-only disc 10 (CD-ROM) by other data. As shown in Figure 1(a), the general disk stores data in a spiral track (Spiral Track), and usually the tracks of these read-only disks 10 (CD-ROM) that have recorded data are filled with Many small holes, and these small holes are called pit data storage structure 11 (Pit), and the flatter part relative to these pit data storage structure 11 (Pit) is flat data storage structure 12 (Land) , when the read-only disc...
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IPC IPC(8): G11B7/0045
Inventor 陈凌风洪建丰
Owner LITE ON IT