Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118084 | Pointer position detection system | — | 2000-09-12 |
| 5856639 | Pointer position detection system using a signal processor in the pointer | — | 1999-01-05 |
| 5714720 | High efficiency passive pointer digitizer system | — | 1998-02-03 |
| 5381160 | See-through digitizer with clear conductive grid | — | 1995-01-10 |
| 5345044 | Cordless digitizer using electromagnetic locating signals | — | 1994-09-06 |
| 5326940 | Dynamically-adjustable scanning rate in digitizers | Dana Doubrava | 1994-07-05 |
| 5274198 | Printed conductive ink electrostatic shield for electromagnetic digitizers | — | 1993-12-28 |
| 5247138 | Cordless digitizer stylus status encoding and transmission scheme | — | 1993-09-21 |
| 5235142 | Phase reference system for cordless looping digitizer | James S. Watson | 1993-08-10 |
| 5198623 | Method for use in a digitizer for determining pen tilt | — | 1993-03-30 |
| 4873399 | Ink-on-glass digitizer tablet and method of construction | — | 1989-10-10 |
| 4853497 | Shielding techique for digitizers | — | 1989-08-01 |
| 4831216 | Digitizer system with intertwined loopback conductor grid | — | 1989-05-16 |
| 4806707 | 3-Dimensional digitizer pen | — | 1989-02-21 |
| 4734546 | Digitizer system with loopback conductor grid | — | 1988-03-29 |
| 4659874 | X-Y position sensor | — | 1987-04-21 |