Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8059514 | Optical disc comprising a watermark and a method and recorder for recording such a disc | Josephus Arnoldus Henricus Maria Kahlman | 2011-11-15 |
| 7990837 | Optical disc comprising a watermark and a method and recorder for recording such a disc | Josephus Arnoldus Henricus Maria Kahlman | 2011-08-02 |
| 7827456 | Error correction scheme for a disc-playing system | Jiagang Zhang, Jianyi Zhong, Zhongjin Guo, Anthonius Petrus Gerardus Emanuel Janssen | 2010-11-02 |
| 7492677 | Method and device for playing optical discs and method for determining tracking quality | Anthonius Petrus Gerardus Emanuel Janssen | 2009-02-17 |
| 7116619 | Optical disc drive apparatus, method for measuring tilt of an optical disc, and method for correcting tilt of an optical disc | Ole Klembt Andersen | 2006-10-03 |