Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859873 | CMOS Schmitt trigger with independently biased high/low threshold circuits | Timothy G. O'Shaughnessy | 1989-08-22 |
| 4808884 | High order digital phase-locked loop system | Donald E. Tolsch, James Wang | 1989-02-28 |