Method for incorporating identifying error information into...

Details Method for incorporating identifying error information into... Method for incorporating identifying error information into...

G - Physics

11

B

G11B 20/00 (2006.01) G11B 7/0037 (2006.01) G11B 23/30 (2006.01) G11B 25/04 (2006.01)

Patent

CA 2604169

The manufacturing process for a data carrying disc, such as a CD, begins with the production of a master, and in the physical manufacturing process of a master, variations are introduced which give the master distinctive physical characteristics and cause errors in the data. The master is used to form generations of discs, and the physical characteristics of the master are passed on down the generations. A group of discs manufactured from the same source consistently exhibit the physical characteristics of the master, and those physical characteristics can be used as a signature for identifying the disc. To determine the provenance of a data carrying disc, uncorrected data is read from the disc. Information about errors is extracted from the data read. The error information may then be compared with a stored list of characteristic error information to determine whether the data carrying disc is genuine. The error information extracted is representative of errors arising from the physical manufacturing process.

Affiliated with

Also associated with

Rating

Method for incorporating identifying error information into... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for incorporating identifying error information into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for incorporating identifying error information into... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1819043