Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6363041 | Record carrier with variations of different physical parameters thereof in different frequency bands during recording | Erik C. Schylander, Johannes J. Mons | 2002-03-26 |
| 6226244 | Playback apparatus for a record carrier providing physical copy protection | Erik C. Schylander, Johannes J. Mons | 2001-05-01 |
| 6134200 | Method and apparatus for recording a main data file and a control file on a record carrier, and apparatus for reading the record carrier | — | 2000-10-17 |
| 5930210 | System and apparatus for recovering information from a record carrier which exhibits variations of two different physical parameters thereof | Erik C. Schylander, Johannes J. Mons | 1999-07-27 |
| 5835674 | Picture retrieval system, and record carrier and device for use in the system | — | 1998-11-10 |
| 5737286 | System and apparatus for recovering information from a record currier which exhibits variations of two different physical parameters thereof | Erik C. Schylander, Johannes J. Mons | 1998-04-07 |
| 5724327 | Record carrier having first variations of a first physical parameter corresponding to information recorded thereon and second variations of a second physical parameter relating to recovery of the information | Erik C. Schylander, Johannes J. Mons | 1998-03-03 |
| 5574564 | Reading apparatus for reading a record carrier on which coded pictures have been recorded | — | 1996-11-12 |
| 5532836 | Apparatus for gradually switching video presentation of stored pictures | Erik Luyckx | 1996-07-02 |
| 5448372 | Storage and retrieval of digitized photographic images | Michael S. Axman, Michael James Barry, Michael S. Mathieu, Norman D. Richards | 1995-09-05 |
| 5301172 | Method of storing user information items and apparatus for reproducing stored items | Norman D. Richards, Jos G. Schepers, Harmen D. Voogd | 1994-04-05 |