RECORDING MEDIUM, MANUFACTURING METHOD THEREOF, REPRODUCTION METHOD, REPRODUCTION DEVICE, AND COPYRIGHT MANAGEMENT METHOD

Title:

RECORDING MEDIUM, MANUFACTURING METHOD THEREOF, REPRODUCTION METHOD, REPRODUCTION DEVICE, AND COPYRIGHT MANAGEMENT METHOD

Document Type and Number:

WIPO Patent Application WO/2004/084208

Kind Code:

A1

Abstract:

A GUID as title information and a global serial number are recorded on a BCA of a digital video disc (60) and a Hash value of the GUID is embedded as a watermark in a data area (64). Upon reproduction, check is made whether these two GUID information coincide, thereby preventing unauthorized copying. A disc revocation list is provided from a lead in area (63) and a management mechanism (20). By using the global serial number and the disc revocation list, it is possible to exclude an unauthorized disc. Data embedded in a film to be screened is detected by a film WM detector (84) so as to exclude a disc containing the data. Thus, it is possible to exclude a disc distributed in an unauthorized manner before being allowed by the copyright manager.

Inventors:

KITANI SATOSHI (JP)
EKLUND CHARLES DON (US)
SATO HIDEO (JP)
YONEMITSU JUN (JP)
MURAMATSU KATSUMI (JP)

Application Number:

PCT/JP2004/003077

Publication Date:

September 30, 2004

Filing Date:

March 10, 2004

Export Citation:

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Assignee:

SONY CORP (JP)
SONY PICTURES ENTERTAINMENT (US)
KITANI SATOSHI (JP)
EKLUND CHARLES DON (US)
SATO HIDEO (JP)
YONEMITSU JUN (JP)
MURAMATSU KATSUMI (JP)

International Classes:

G06F12/14; G06F21/10; G06F21/16; G06F21/60; G06F21/62; G06F21/64; G11B7/005; G11B7/007; G11B20/00; G11B20/10; G11B20/12; G11B27/24; H04N5/91; H04N5/913; H04N5/92; H04N5/85; (IPC1-7): G11B20/10; G11B20/12; G11B7/005; H04N5/91; G06F12/14

Domestic Patent References:

WO2000046804A1

2000-08-10

Foreign References:

JP2002073017A	2002-03-12
JPH1173725A	1999-03-16
JP2000251395A	2000-09-14
JP2000148014A	2000-05-26
JP2000155834A	2000-06-06
JP2002135243A	2002-05-10
JP2001211151A	2001-08-03
JP2000357126A	2000-12-26
JP2001175603A	2001-06-29
JPH11232775A	1999-08-27
JP2002074836A	2002-03-15

Other References: