CD-ROM with machine-readable I.D. code

Details CD-ROM with machine-readable I.D. code CD-ROM with machine-readable I.D. code

1995-06-02

1996-07-30

Epps, Georgia Y.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 59, 369 54, 369 47, G11B 700

Patent

active

055419046

ABSTRACT:
A machine-readable serial number is formed on a CD-ROM by using a laser to selectively remove a reflective layer from the CD-ROM. Removal of the reflective layer creates defects in addressable information storage locations on the CD-ROM. The serial number is read by detecting the defects. The serial number is used in a software distribution system in which many different software programs are distributed on a single CD-ROM and an access code based on the desired software program and the serial number of a particular CD-ROM is used to "unlock" the desired program on the particular CD-ROM.

REFERENCES:
patent: 4961077 (1990-10-01), Wilson et al.
patent: 4984230 (1991-01-01), Satoh et al.
patent: 5214781 (1993-05-01), Miki et al.
patent: 5237553 (1993-08-01), Fukushima et al.
patent: 5319627 (1994-06-01), Shinno et al.

Affiliated with

Also associated with

Rating

CD-ROM with machine-readable I.D. code does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CD-ROM with machine-readable I.D. code, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CD-ROM with machine-readable I.D. code will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1665887