Device and method for writing optical storage media

An optical storage and media technology, applied in optical recording/reproducing/erasing methods, information storage, optical recording systems, etc., can solve problems such as time delay in data writing process, reduce delay time, improve system performance, accelerate The effect of writing

Inactive Publication Date: 2008-07-30
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the time delay in the data writing process caused by frequent access to the memory in the prior art, the present invention provides a method and device for writing to an optical storage medium that can reduce the number of memory accesses

Method used

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  • Device and method for writing optical storage media
  • Device and method for writing optical storage media
  • Device and method for writing optical storage media

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Embodiment Construction

[0036] In order to make the above and other objects, features, and advantages of the present invention more clearly understood, the preferred embodiments of the present invention are listed below, together with the accompanying drawings, for a detailed description:

[0037] FIG. 3 is a flowchart of a writing method 300 for an optical storage medium according to the present invention. In the method 300, since multiple encoding steps are executed simultaneously, the memory is only accessed once, which reduces the delay time of the system, thus improving the system performance. In addition, directly writing the final encoded formatted data into the optical storage medium reduces another memory access and improves system performance.

[0038] In step 302, the host transmits the original data to the main memory of the optical drive. Several encoding steps in the plurality of encoding steps are selected, and the encoding is performed simultaneously according to the data obtained by...

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Abstract

The invention provides a method for optical storage medium writing. The method comprises: transferring raw data from a host to a primary memory; reading the primary memory to obtain read-out data; carrying out a series of encoding steps simultaneously to generate formatted data according to the read-out data; and directly writing the formatted data to the optical storage medium without accessing the primary memory again; wherein the raw data must be converted in advance to the formatted data through the encoding steps before the formatted data is written to the optical storage medium. Some encoding steps are performed in synchronism based on data obtained by once memory accessing, thus the delay time of memory accessing is reduced to quicken the write of the data, therefore the system effectiveness is increased.

Description

technical field [0001] The present invention relates to an optical storage medium, in particular to a method and device for writing data into an optical storage medium. Background technique [0002] Optical storage media has many advantages over magnetic storage media, such as higher storage capacity, and there is no need to worry about storing data being destroyed by external magnetic fields. Optical storage media has a data retention period of more than 30 years, and the data is not easily damaged by extreme temperatures. Common optical storage media include CD (compactdisk), digital versatile disc (digital versatile disc, DVD), and blu-ray disc (blu-ray disc, BD). [0003] FIG. 1 is a flow chart of a method 100 for writing an optical storage medium in the prior art. Firstly, the original data to be written into an optical storage medium such as CD or DVD is transmitted from the host to the memory of the optical drive in step 102 . Before the original data is written in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10
CPCG11B20/1217G11B7/0045G11B20/10527G11B20/1833G11B2020/10685G11B2020/10759G11B2020/1294G11B2020/1297G11B2020/1836G11B2020/184G11B2020/1853G11B2220/2541G11B2220/2562
Inventor 曾维祥陈佳苹薛景文
Owner MEDIATEK INC
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