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Method for recording data on storage medium

A technology of storage medium and recording method, which is applied in the direction of combined recording, information storage, data recording, etc., and can solve the problems of increasing the danger of copyright works

Inactive Publication Date: 2003-10-15
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At the same time, greater compatibility with personal computers means an increased risk of unauthorized copying of copyrighted works, which in turn calls for better techniques to prevent unauthorized copying of audio works

Method used

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  • Method for recording data on storage medium
  • Method for recording data on storage medium
  • Method for recording data on storage medium

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Experimental program
Comparison scheme
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Embodiment Construction

[0090] The following description is divided into the following 10 sections

[0091] 1. Overview of Recording System

[0092] 2. Disk

[0093] 3. Signal format

[0094] 4. Recording / reproducing device structure

[0095] 5. Initialization of next-generation MD1 and MD2 disks

[0096] 6. The first example of audio data management system

[0097] 7. The second example of audio data management system

[0098] 8. Operation during connection with personal computer

[0099] 9. Restrictions on copying audio data from disc

[0100] 10. Coexistence of the next generation MD1 system with the current MD system 1. Overview of the recording system

[0101] A recording / reproducing apparatus according to the present invention uses a magneto-optical disk as its storage medium. The physical properties of the disc, such as form-factor, are basically similar to those utilized by the so-called MD (Mini Disc) system, however, data recorded on the disc and how data is arranged on the disc are...

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Abstract

A recording method includes the steps of detecting whether unique information is recorded in a storage medium outside a predetermined area managed by a management data that manages data in a data area on a storage medium; generating unique information when in the detecting step no unique information is detected as being recorded in the storage medium; and recording the unique information when generated in the generating step to the storage medium outside the area managed by the management data.

Description

technical field [0001] In general, the present invention relates to a recording method for extending the functionality of a magneto-optical disk usable by a conventional minidisc (MD) system in such a way that compatibility with the conventional MD system is maintained. Background technique [0002] The so-called minidisc (MD), a magneto-optical disk with a span of 64mm housed in a cartridge, is today a widely accepted storage medium for recording and reproducing digital audio data thereon. [0003] The MD system employs ATRAC (Adaptive Transform Acoustic Coding) as its audio data compression method. ATRAC involves compression coding of audio data using a transform called MDCT (Modified Discrete Cosine Transform). The audio data is acquired through a predetermined time window. Usually, music data is compressed to one-fifth to one-tenth of the original data volume. [0004] The MD system utilizes a convolutional code called ACIRC (Advanced Interleaved Reed-Solomon Code) as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/007G11B20/10G11B20/18
CPCG11B20/00086G11B2020/1229G11B20/00891G11B7/00736G11B11/10597G11B20/00115G11B2020/00043G11B20/1883G11B2020/1292G11B2220/20G11B2020/1277G11B11/10504G11B20/00333G11B2220/2529G11B2020/1222G11B11/10595G11B2020/1265G11B2020/00057G11B2020/1238G11B20/10009G11B20/10101G11B2020/1287G11B20/1251G11B20/12G11B2020/1268G11B20/10527G11B20/00297G11B2020/1274G11B7/007
Inventor 服部真人王尾诚司川上高城井学
Owner SONY CORP