Title:
記録媒体の複写防止情報管理方法
Document Type and Number:
Japanese Patent JP2006526244
Kind Code:
A
Abstract:
A method, apparatus and storage medium for managing copy protection information are discussed. According to an embodiment, there is provided a method for managing copy protection information. The method includes reading copy protection information used for decrypting encrypted data, the copy protection information to be decrypted using a combination key which is a combination of a first and a second key, decrypting the copy protection information using the combination key, and decrypting the encrypted data using the copy protection information, wherein the first key is a private code and the second key is managed in a device.
More Like This:
| JP2007287319 | OPTICAL RECORDING MEDIUM |
| JP3104222 | MANUFACTURING METHOD OF OPTICAL DISK, OPTICAL DISK AND OPTICAL DISK DEVICE |
| JP4685754 | Tracking method |
Inventors:
Kim, Bun, Jin
Kim, Hyun, Sun
Kim, Hyun, Sun
Application Number:
JP2006507822A
Publication Date:
November 16, 2006
Filing Date:
April 24, 2004
Export Citation:
Assignee:
LG Electronics Inc.
International Classes:
G11B7/007; G11B20/10; G11B7/004; G11B19/12; H04L9/08; H04N5/85; H04N5/91; G11B7/005; G06F
Attorney, Agent or Firm:
Yuichi Yamada
Masakazu Noda
Masakazu Noda
Previous Patent: グラフィックデータ再生を管理するためのデータ構造を有する記録媒体、...
Next Patent: マルチメディアデータの再生装置、オーディオデータの受信方法及びオー...
Next Patent: マルチメディアデータの再生装置、オーディオデータの受信方法及びオー...