Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549511 | Optical disk medium having features for radial tilt detection and apparatus for measuring radial tilt | — | 2003-04-15 |
| 6493094 | Method and apparatus for beam directing | Hollis O'Neal Hall | 2002-12-10 |
| 6204925 | Interferometer having a micromirror | Hollis O'Neal Hall | 2001-03-20 |
| 6025912 | Interferometer having a micromirror | Hollis O'Neal Hall | 2000-02-15 |
| 5771095 | Optical test system including interferometer with micromirror and piezoelectric translator for controlling test path mirror | Hollis O'Neal Hall | 1998-06-23 |
| 5675413 | Adjustable optical test apparatus including interferometer with micromirror and alignment observation system | Hollis O'Neal Hall | 1997-10-07 |
| 5349175 | Focus sensing apparatus using electrical AGC to enhance differential focus error signal | — | 1994-09-20 |
| 5245174 | Focus sensing apparatus utilizing a reflecting surface having variable reflectivity | Curtis A. Shuman, Hollis O'Neal Hall, II | 1993-09-14 |
| 4843603 | Concentric photodetector arrangement for focusing and tracking | — | 1989-06-27 |
| 4509818 | Hologram synthesis | — | 1985-04-09 |