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Data corruption preventing method, record system and disk with capability of preventing destruction

A recording device and technology for data recording, applied in data recording, optical recording/reproducing/erasing methods, recording of information on magnetic disks, etc., can solve problems such as reduced practicability and reduced recording efficiency

Inactive Publication Date: 2003-12-24
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the recording operation is suspended due to a crossing signal generated by a foreign object on the disk, the recording efficiency will be reduced
As a result, the utility of devices based on this type of assay is reduced

Method used

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  • Data corruption preventing method, record system and disk with capability of preventing destruction
  • Data corruption preventing method, record system and disk with capability of preventing destruction
  • Data corruption preventing method, record system and disk with capability of preventing destruction

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0046] Before giving a full description of the operation of the preferred embodiment of the invention, an overview of the recording apparatus according to the invention will be given.

[0047] First, the structure of the recording / reproducing apparatus to be implemented refers to image 3 to describe. Then, the segment control data, which is written as UTOC information on the magneto-optical disc, will be described, referring to Figure 4 and Figure 5 , for the recording / reproducing apparatus described above.

[0048] The embodiment to be described is implemented, for example, by a recording / reproducing apparatus using a magneto-optical disk as a recording medium. image 3 is a block diagram of an essential part of the recording / reproducing apparatus.

[0049] Now, refer to image 3 , Numeral 1 represents the magneto-optical disk that for example many programs (audio data) record, and is driven to rotate by spindle motor 2, and numeral 3 represents the optical head that ...

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PUM

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Abstract

A disc having recordable and recorded areas discretely scattered over it at the same time is formed with a guard band to prevent the recorded area from being destroyed by a track jump caused by an undue impact or vibration applied to the disc during a recording operation. Additionally, storing in memory information of an edge of a recorded area by a predetermined amount before recording, the edge providing a boundary between the recorded area and a recordable area, allows recovery of data in the recorded area destroyed by a track jump caused by an undue impact or vibration applied to a disc.

Description

technical field [0001] The present invention relates to a recording apparatus capable of recording data such as music data on a magnetic disc recording medium. Background technique [0002] For example, according to the U.S. Patent Application No. 945488 filed on September 10, 1992, it can be known that a user can record a rewritable data disk recording medium such as music data. A so-called User Table of Contents (UTOC) of data such as music data on the recording area. When recording a program, the recording device searches the UTOC for a recordable area on the disk in order to record audio data there. [0003] It is also known that disk recording media such as magneto-optical disks are much easier to operate in random access than digital audio tapes (DAT) or compact cassettes. [0004] Therefore, a program need not always be recorded in consecutive segments. Here, a segment means a portion of one or more recording tracks in which continuous data is actually recorded. D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/0045G11B7/007G11B7/09G11B11/105G11B19/02G11B19/04G11B27/034G11B27/036G11B27/11G11B27/19G11B27/22G11B27/24G11B27/32G11B27/36
CPCG11B27/24G11B11/10595G11B7/007G11B27/036G11B7/0946G11B27/11G11B2220/65G11B19/02G11B27/329G11B7/0045G11B2220/2529G11B2220/2525G11B27/36G11B27/034G11B27/22G11B19/04G11B27/19
Inventor 冈部正信
Owner SONY CORP