Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804928 | Phase-frequency compare circuit for phase lock loop | James E. Chloupek | 1989-02-14 |
| 4798973 | High frequency charge pump/integrator circuit | John D. Morgan, William H. Giolma | 1989-01-17 |