Patent US 4922061A
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| Patent number | US 4922061A (click link for details and documents via Google Patents) |
|---|---|
| Title | Capacitive touch panel system with randomly modulated position measurement signal |
| Inventors | R. David Meadows, Roger McCoy |
| Company | Tektronix Inc |
| Filing date | 1989-07-20 |
| Grant date | 1990-05-01 |