Prevention of disk piracy

Details Prevention of disk piracy Prevention of disk piracy

2006-06-13

2006-06-13

Revak, Christopher (Department: 2131)

Information security

Prevention of unauthorized use of data including prevention...

C705S057000, C369S053210, C369S275500, C713S193000

Reexamination Certificate

active

07062784

ABSTRACT:
A method for protecting data recorded on an original data storage medium against unauthorized copying includes receiving data encoded in accordance with an applicable recording standard, and altering a portion of the encoded data such that the altered data are identified as erroneous according to the standard. The data are recorded on the medium, together with ancillary data which are used by a processor in an intended application of the medium to operate upon the altered portion of the data such that the application runs in a manner substantially unaffected by the alteration of the data. Upon unauthorized copying of the data, however, the ancillary data are ineffective in correcting the altered portion of the encoded data, so that the alteration causes a substantially unrecoverable error in an unauthorized copy of the original medium.

REFERENCES:
patent: 5699434 (1997-12-01), Hogan
patent: 5778257 (1998-07-01), Tsukatani et al.
patent: 5930209 (1999-07-01), Spitzenberger et al.
patent: 5956408 (1999-09-01), Arnold
patent: 6005839 (1999-12-01), Sako et al.
patent: 6104679 (2000-08-01), Sollish
patent: 6253258 (2001-06-01), Cohen
patent: 0 843 471 (1998-05-01), None
patent: 1 061 514 (2000-12-01), None
patent: 2 205 667 (1998-12-01), None
patent: 9808180 (1998-02-01), None
patent: 9852194 (1998-11-01), None
patent: 9854713 (1998-12-01), None
patent: WO 00/68945 (2000-11-01), None
patent: WO 00/74053 (2000-12-01), None
patent: WO 01/61696 (2001-08-01), None
patent: WO 01/80546 (2001-10-01), None
“CD-ROM and Its Technology” No. 36, pp. 559-600.
Standard 908 of the IEC, “Compact Disc Digital Audio System” CEI IEC 908 (1987) Geneva, Switzerland.
“Information Technology—Data Interchange on Read-Only 120 MM Optical Data Disks (CD-ROM)” International Standard, ISO/IEC 10149, Second Edition, (1995).
“The CD Family”, Published by Philips Consumer Electronics B.V. (Eindhoven, The Netherlands) Mar. 1996.
SAA7345, CMOS Digital Decoding IC with RAM for Compact Disc, Published by Phillips Semiconductors, Feb. 16, 1998.
Voelcker, et al., “How disks are ‘padlocked’”; IEEE Spectrum, Jun. 1986, pp. 32-40.
Data interchange on read-only 120 mm optical data disks (CD-ROM), second edition, Standard ECMA, XX,XX, No. ECMA-130, Jun. 1996, 53 pages.
EP Search Report for EP 04 01 6293 dated Sep. 29, 2004, 2 pages.
EP Search Report for EP 04 01 6294 dated Sep. 28, 2004, 2 pages.
EP Search Report for EP 04 01 6295 dated Oct. 19, 2004, 2 pages.
EP Search Report for EP 04 01 6296 dated Sep. 30, 2004, 2 pages.

Affiliated with

Also associated with

Rating

Prevention of disk piracy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prevention of disk piracy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prevention of disk piracy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3618016