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Management method of optical disk spare block

A technology for spare blocks and optical discs, which is applied to optical record carriers, information arrangement, digital signal formatting, etc., can solve problems such as low efficiency and inability to directly control the use status of spare blocks, and achieve the effect of increasing efficiency

Inactive Publication Date: 2006-10-18
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is conceivable that the use status of a spare block cannot be directly known from the address of a spare block in the damage record table, which will reduce the efficiency of the damage management process and cannot directly control the use status of each spare block

Method used

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  • Management method of optical disk spare block
  • Management method of optical disk spare block
  • Management method of optical disk spare block

Examples

Experimental program
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Embodiment Construction

[0051] Please refer to Figure 5 ; Figure 5 It is a functional block diagram of an optical drive 30 cooperating with a host computer 46 . The method of the present invention can be used in Figure 5 The optical drive in 30. The user can control the optical 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 drive 30 is provided with a carrier 34, a motor 32 for driving the rotation of the carrier 34, a read head 36 for accessing the data of the optical disc 22, a control circuit 38 for controlling the operation of the optical drive 30, and a temporary storage control A memory 40 (such as random access memory) for data required during operation of the circuit 38 . When the motor 32 drives the carrying platform 34 to rotate, the optical disc 22 placed on the carrying platform 34 will also rotate thereupon, so that the track 24 used for recording data on the optical disc 22 passes before ...

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Abstract

The present invention provides a method for managing the state of data recording on an optical disc. The optical disc is provided with a plurality of data blocks and a plurality of spare blocks. Each data block is used to record data, and each spare block is used to replace a damaged data block to Recording data; the method includes: according to the order in which the spare blocks are arranged, the situation in which each spare block is used is recorded in a state table, so that the use situation of adjacent spare blocks in different usage situations is recorded in the state table adjacent fields.

Description

technical field [0001] The present invention provides a method for managing spare blocks on an optical disc, especially a method for accessing the use status of each spare block according to the address of the spare block. Background technique [0002] With its low price, light volume and weight, but capable of storing a large amount of data, optical discs have become one of the most commonly used data storage media in the modern information society. In particular, the 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 data access to writable optical discs more reliable and efficient has also become the focus of research and development in the modern information industry. [0003] The data on the CD needs to be accessed by the CD drive. Please refer to figure 1 . figure 1 It is a functional block diagram of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/007G11B20/12
Inventor 李明鸿
Owner MEDIATEK INC