Title:
記憶媒体へのアクセスを制御するための方法と装置
Document Type and Number:
Japanese Patent JP2004502266
Kind Code:
A
Abstract:
A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to control use of the medium.
Inventors:
Serine Flound, Richard Etch
Drew, Jeffrey M
Goetti, Donald Earl
Bigg, rakesh
Drew, Jeffrey M
Goetti, Donald Earl
Bigg, rakesh
Application Number:
JP2002507374A
Publication Date:
January 22, 2004
Filing Date:
March 30, 2001
Export Citation:
Assignee:
Verification Technologies, Inc.
International Classes:
G11B20/10; G11B7/004; G11B7/005; G11B7/24; G11B7/243; G11B7/26; G11B19/04; G11B19/12; G11B20/00; G11B20/12; G11B23/28; (IPC1-7): G11B7/004; G11B7/005; G11B20/10; G11B20/12
Foreign References:
| WO1998008180A2 | 1998-02-26 |
Attorney, Agent or Firm:
Warren G. Simor
Tsuyoshi Ito
Tsuyoshi Ito