Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487155 | Optical disc authentication using alternate data modulation encoding schemes | Henry B. Kelly | 2002-11-26 |
| 6477124 | Varying the rate at which data appear on an optical disc rotated at a constant linear velocity to prevent unauthorized duplication of the disc | — | 2002-11-05 |