Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10134624 | Substrate alignment detection using circumferentially extending timing pattern | Mike Chatterton, Stephen Houser, Bryan Whitfield | 2018-11-20 |
| 9953806 | Substrate alignment detection using circumferentially extending timing pattern | Mike Chatterton, Stephen Houser, Bryan Whitfield | 2018-04-24 |
| 9865297 | Image archive disc | — | 2018-01-09 |
| 9627179 | Substrate alignment through detection of rotating timing pattern | Mike Chatterton | 2017-04-18 |
| 9177593 | Image archive disc | — | 2015-11-03 |
| 8761014 | Authenticating a data transmission by varying a rate thereof | — | 2014-06-24 |
| 8300524 | Authenticating a data transmission by varying a rate thereof | — | 2012-10-30 |
| 8300345 | Variable track width recording compensation | — | 2012-10-30 |
| 8300505 | Writing repeating patterns of features to a substrate | — | 2012-10-30 |
| 8259549 | Deflection reference adjustment for variable track pitch media | — | 2012-09-04 |
| 8189902 | Creating an XY image pattern on a rotating substrate | — | 2012-05-29 |
| 8154817 | Compensation for different transducer translation path geometries | — | 2012-04-10 |
| 8144558 | Hidden patterns on a data storage medium | — | 2012-03-27 |
| 8089852 | Storage medium with separate image and data tracks | Anthony Paul Shore | 2012-01-03 |
| 7907492 | Data storage medium with improved multi-session recording format | — | 2011-03-15 |
| 7805764 | Sequencing data blocks to provide hidden data on a recording medium | — | 2010-09-28 |
| 7710854 | Multi-layer optical disc format | — | 2010-05-04 |
| 7684307 | Identifier tag to track layers in a multi-layer optical disc | — | 2010-03-23 |
| 7590039 | Radial separation distance determination for a data storage medium | — | 2009-09-15 |
| 7568081 | Authenticating a data storage medium using predetermined inter-sector relationships | — | 2009-07-28 |
| 7102973 | Media authentication using altered sector sizes | — | 2006-09-05 |
| 6973573 | Detection of a digital data fingerprint | Henry B. Kelly | 2005-12-06 |
| 6768709 | Hiding digital data in a digital audio or video carrier signal | Henry B. Kelly | 2004-07-27 |
| 6717899 | Optical disc hidden data technique | Henry B. Kelly | 2004-04-06 |
| 6715122 | Copy protection through symbol substitution and induced errors | Henry B. Kelly | 2004-03-30 |