Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5861766 | Multimode frequency synthesizer having high loop gain in frequency seek mode | Howard Baumer, David Chung | 1999-01-19 |
| 5126692 | Variable frequency system having linear combination of charge pump and voltage controlled oscillator | Karl M. J. Lofgren, Kenneth W. Ouyang | 1992-06-30 |
| 4922141 | Phase-locked loop delay line | Karl M. J. Lofgren, Kenneth W. Ouyang | 1990-05-01 |
| 4893030 | Biasing circuit for generating precise currents in an integrated circuit | Karl M. J. Lofgren, Kenneth W. Ouyang | 1990-01-09 |
| 4871979 | Variable frequency system having linear combination of charge pump and voltage controlled oscillator | Karl M. J. Lofgren, Kenneth W. Ouyang | 1989-10-03 |
| 4716383 | Precise phase start-up voltage controlled oscillator with accurate duty cycle | Karl M. J. Lofgren, Kenneth W. Ouyang | 1987-12-29 |
| 4704587 | Crystal oscillator circuit for fast reliable start-up | Kenneth W. Ouyang, Karl M. J. Lofgren | 1987-11-03 |
| 4667170 | Voltage controlled oscillator with self-adjustment of operating point | Karl M. J. Lofgren, Charles Frank | 1987-05-19 |