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Recording medium recording and/or reproduction apparatus, recording and/or reproduction method

A technology for recording media and data recording, applied in optical recording/reproduction/erasing methods, digital recording/reproduction, optical recording carriers, etc., can solve the problem of damage to the interests of managers or copyright owners, repeated downloading of content data by users, etc. question

Inactive Publication Date: 2004-02-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the amount of recordable data recorded on the recording medium may be maliciously manipulated by the user, and as a result, the user may maliciously repeatedly download content data, thereby damaging the interests of the administrator of the system or the copyright owner.

Method used

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  • Recording medium recording and/or reproduction apparatus, recording and/or reproduction method
  • Recording medium recording and/or reproduction apparatus, recording and/or reproduction method
  • Recording medium recording and/or reproduction apparatus, recording and/or reproduction method

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Embodiment Construction

[0030] An optical disc, a method and apparatus for recording data on the optical disc, and a method and apparatus for reproducing data from the optical disc according to the present invention are explained in detail with reference to the accompanying drawings.

[0031] The present invention is applied to a system for distributing content data such as music on a network such as EMD (Electronic Music Distribution System). In such a content data distribution system 1, as shown in FIG. 1, a user purchases a write-once or rewritable optical disc on which content data can be recorded, and the user uses the data recording and / or reproducing apparatus he / she owns. 60 accesses the server device 40 through the network, downloads desired content data from the server location and records the downloaded content data on the optical disc 10 purchased. That is, the present system 1 is a prepayment system through which the user pays for downloading the content data when he purchases the optica...

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Abstract

A method for reproducing a recording medium comprising reading out identification data from a recording medium having recorded thereon data and the identification data, which identification data includes entity identification data and detection data. The detection data is generated using at least the entity identification data and indicates whether or not the entity identification data at least is authentic data. The identification recorded on the recording medium is read out, detection data is generated based on the entity identification data of the identification data as read out and the detection data extracted from the read-out identification data is compared to the generated detection data. When, as a result of comparison, the detection data extracted from the read-out identification data is coincident with the generated detection data, the outputting of the data read out from the recording medium is permitted.

Description

technical field [0001] The present invention relates to a method and apparatus for a recording medium on which content data downloaded through a network is recorded. Background technique [0002] There is a content distribution system that distributes content data such as music on a network such as EMD (Electronic Music Distribution System). With such a system, a user terminal device can, for example, access a server device in which content data is stored to download desired content data. For payment, private information such as credit card number, secret number or Web currency is sent from the user terminal device to the server device. [0003] In such a system, payment is made by sending private information such as a credit card number, a secret number, or Web money from a terminal device to a server device on a network, and therefore troublesome operations are required in inputting the private information. Furthermore, there is a danger that third parties may illegally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F3/08G11B7/004G11B7/007G11B20/00G11B20/10G11B20/12G11B27/00H04L9/32H04N5/85H04N5/92
CPCG11B20/00086G11B20/0021G11B20/10G11B20/00115G11B20/00855G11B20/0084G11B20/00724
Inventor 佐古曜一郎佐藤贵司井桥孝夫
Owner SONY CORP
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