Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700451 | Cross coupled cascode voltage controlled oscillator | David S. Peckham | 2004-03-02 |
| 6065140 | Optimized computation of first and second divider values for a phase locked loop system | — | 2000-05-16 |
| 5999017 | CMOS implemented output buffer circuit for providing ECL level signals | — | 1999-12-07 |
| 5795508 | Method of lining a blast furnace | Madjid Soofi | 1998-08-18 |
| 5774023 | Adaptive phase locked loop system with charge pump having dual current output | — | 1998-06-30 |
| 5632937 | Method of installing a refractory lining | Madjid Soofi, Charles W. Connors, Jr. | 1997-05-27 |
| 5511762 | Consumable form with degradable lining | Charles W. Connors, Jr. | 1996-04-30 |
| 5504751 | Method and apparatus for extracting digital information from an asynchronous data stream | Robert C. Ledzius | 1996-04-02 |
| 5484138 | Consumable form with adjustable walls | Madjid Soofi, Charles W. Connors, Jr. | 1996-01-16 |
| 5357252 | Sigma-delta modulator with improved tone rejection and method therefor | Robert C. Ledzius | 1994-10-18 |
| 5339079 | Digital-to-analog converter with a flexible data interface | Robert C. Ledzius, Dhirajlal N. Manvar | 1994-08-16 |
| 5339278 | Method and apparatus for standby recovery in a phase locked loop | David F. Moeller, Karl J. Huehne | 1994-08-16 |
| 5323157 | Sigma-delta digital-to-analog converter with reduced noise | Robert C. Ledzius | 1994-06-21 |
| 5231395 | Sigma-delta digital-to-analog converter with reduced distortion | Robert C. Ledzius, Dhirajlal N. Manvar | 1993-07-27 |
| 5220326 | Digital-to-analog converter with improved performance and method therefor | Robert C. Ledzius, Dhirajlal N. Manvar | 1993-06-15 |
| 5122799 | Multi-modulator digital-to-analog converter | Robert C. Ledzius | 1992-06-16 |
| 5095287 | Phase locked loop having a charge pump with reset | David F. Moeller | 1992-03-10 |
| 5057840 | .SIGMA.-.DELTA.modulator for digital-to-analog converter | Robert C. Ledzius | 1991-10-15 |
| 5030952 | Sigma-delta type analog to digital converter with trimmed output and feedback | Robert C. Ledzius | 1991-07-09 |
| 4959624 | Coil-less overtone crystal oscillator | Robert J. Higgins, Jr., William J. Ooms | 1990-09-25 |
| 4952889 | Loop filter modulated synthesizer | Wayne P. Shepherd | 1990-08-28 |
| 4935707 | Current reduction of a synthesizer | — | 1990-06-19 |
| 4862516 | System for automatically tuning the antenna of a miniature portable communications device | Philip P. Macnak, Walter L. Davis | 1989-08-29 |
| 4817196 | Apparatus for tuning the antenna of a miniature personal communications device | Philip P. Macnak | 1989-03-28 |
| 4785263 | FET oscillator circuit | Robert S. Kaltenecker, Robert E. Stengel, Ralph T. Enderby | 1988-11-15 |