LICENSE MANAGEMENT DEVICE, LICENSE MANAGEMENT METHOD, AND COMPUTER PROGRAM

Title:

LICENSE MANAGEMENT DEVICE, LICENSE MANAGEMENT METHOD, AND COMPUTER PROGRAM

Document Type and Number:

WIPO Patent Application WO/2004/025533

Kind Code:

A1

Abstract:

An information recording medium, an information processing device, and a method that allow a copyright-protected content to be used on both a CD player and an information processing device such as a PC. A licensing condition for providing a client with license is set dynamically depending on the content usage state of the client. For example, the license price is low or the license is free for a client who uses contents frequently. A medium ID stored on a CD or the like and a product ID used as the identifier of a title, an album, or the like are received from the client and, based on this identification data, the content usage state data is confirmed. This makes it possible to grant a license under reliable content usage management.

Inventors:

NAGAI NORIHIRO (JP)
KURIHARA AKIRA (JP)
KITAYA YOSHIMICHI (JP)
OSAWA YOSHITOMO (JP)
URANO NAOMI (JP)
MORITA MASAO (JP)
FUKUI TOSHIHARU (JP)

Application Number:

PCT/JP2003/011617

Publication Date:

March 25, 2004

Filing Date:

September 11, 2003

Export Citation:

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Assignee:

SONY CORP (JP)
NAGAI NORIHIRO (JP)
KURIHARA AKIRA (JP)
KITAYA YOSHIMICHI (JP)
OSAWA YOSHITOMO (JP)
URANO NAOMI (JP)
MORITA MASAO (JP)
FUKUI TOSHIHARU (JP)

International Classes:

G06F21/00; G06F15/00; G06F21/10; G06F21/33; G06F21/62; G06Q30/06; G06Q50/00; G06Q50/10; G11B20/00; G11B20/10; H04K1/00; H04L9/00; H04N7/167; H04N21/21; H04N21/2543; H04N21/258; H04N21/462; (IPC1-7): G06F17/60

Domestic Patent References:

WO2001099331A1

2001-12-27

Foreign References:

JP2001344437A	2001-12-14
JP2001022843A	2001-01-26

Other References: