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Method for destroying data access on CD

A technology for optical discs and data, applied to the recording of information on magnetic discs, optical recording/reproduction, optical recording/reproduction/erasing methods, etc., can solve the problem of reducing the life of optical disc drives 10, reducing writing, reading, etc. Take process efficiency, increase write, read process time and other issues

Inactive Publication Date: 2004-03-17
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combining the writing process 100 and the reading process 200 in the prior art, it is necessary to perform frequent tracking movements to manage the damage of the optical disc, which not only increases the time consumed in the writing and reading process, but also reduces the time spent on writing and reading. Taking the efficiency of the process will also increase the operating burden and loss of the mechanical part of the optical disc drive 10, and reduce the service life of the optical disc drive 10.

Method used

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  • Method for destroying data access on CD
  • Method for destroying data access on CD
  • Method for destroying data access on CD

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Experimental program
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Embodiment Construction

[0045] Please refer to Figure 7 ; Figure 7 It is a functional block diagram of an optical disc drive 30 cooperating with a host computer 46 . The method of the present invention can be used in Figure 7 CD-ROM drive 30 in. The user can control the optical disc drive 30 to access the data on the optical disc 22 through the host 46 (such as a computer system such as a personal computer). The optical disc drive 30 is provided with a loading platform 34, a motor 32 for driving the loading base 34 to rotate, a read head 36 for accessing the data of the optical disc 22, a control circuit 38 for controlling the operation of the optical disc drive 30, and a A memory bank 40 (such as a random access memory bank) for temporarily storing data required by the control circuit 38 during operation. When the motor 32 drives the carrying platform 34 to rotate, the optical disk 22 placed on the carrying platform 34 will also rotate accordingly, so that the track 24 used for recording data...

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Abstract

The invention discloses a process for compact disk data access using a compact disk machine, wherein the compact disk machine includes a memory module, the compact disk sheet includes data field blocks for data recording and a stand-by block for replacing damaged data area. During data fetching, reading the data in the standby blocks of a predetermined number into the memory module, when the datain damaged data area block is read, checking whether the standby data area blocks for replacing the damaged data area blocks have been stored into the memory module. íí

Description

technical field [0001] The invention provides a damage management method for an optical disc drive when reading / writing data on an optical disc, especially an optical disc that uses pre-read multiple spare encapsulation areas as a high-speed cache to reduce tracking movement of the optical disc drive read / write method. Background technique [0002] Due to its low price, light size and weight, it can store a large amount of data, and has become one of the most commonly used data storage media in the modern information society. In particular, the research and development of writable optical discs allows users to write personal data into optical discs according to individual needs, making optical discs one of the most important portable personal storage media. How to make optical disc data access more reliable and efficient has also become the focus of research and development in the modern information industry. [0003] The data on the CD is accessed by a CD drive. Please r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/0045G11B7/005G11B19/02
Inventor 吴元丁
Owner MEDIATEK INC