Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975725 | Method for standardizing the use of ISO 7816 smart cards in conditional access systems | William Tseng | 2005-12-13 |
| 6912513 | Copy-protecting management using a user scrambling key | — | 2005-06-28 |