Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8604962 | ADC first stage combining both sample-hold and ADC first stage analog-to-digital conversion functions | — | 2013-12-10 |
| 6417736 | Multiple-voltage supply power amplifier with dynamic headroom control | — | 2002-07-09 |
| 6373118 | High-value integrated circuit resistor | — | 2002-04-16 |
| 6297759 | Digital-to-analog converter with high-speed output | — | 2001-10-02 |
| 6255884 | Uniform clock timing circuit | — | 2001-07-03 |
| 6236273 | High efficiency power amplifier | — | 2001-05-22 |
| 6215353 | Stable voltage reference circuit | — | 2001-04-10 |
| 6100834 | Recursive multi-bit ADC with predictor | — | 2000-08-08 |
| 6064267 | Current mirror utilizing amplifier to match operating voltages of input and output transconductance devices | — | 2000-05-16 |
| 5781132 | Error correcting decoder | — | 1998-07-14 |
| 5670862 | Rapid charging technique for lithium ion batteries | — | 1997-09-23 |
| 5640162 | Digital-to-analog converter with binary coded inputs to produce a plurality of outputs in the form of thermometer code | — | 1997-06-17 |
| 5163019 | Binary carry circuitry | — | 1992-11-10 |
| 5130570 | Constant-current integrated power supply | — | 1992-07-14 |
| 5099205 | Balanced cascode current mirror | — | 1992-03-24 |
| 4983973 | Non-linear analog-to-digital converter | — | 1991-01-08 |
| 4926176 | Self-timing analog-to-digital converting system | Perry W. Lou | 1990-05-15 |
| 4899153 | Fast high-resolution analog-to-digital converter | — | 1990-02-06 |
| 4875046 | Centroiding algorithm for networks used in A/D and D/A converters | — | 1989-10-17 |
| 4665380 | Apparatus for converting between digital and analog values | — | 1987-05-12 |
| 4591808 | High efficiency oscillator output stage and method of operation | Charles H. Lucas | 1986-05-27 |
| 4542348 | High efficiency IGFET operational amplifier | Charles H. Lucas | 1985-09-17 |
| 4500846 | Circuit for effecting improved slew rate of operational amplifiers | Charles H. Lucas | 1985-02-19 |
| 4467227 | Channel charge compensation switch with first order process independence | Charles H. Lucas | 1984-08-21 |
| 4439693 | Sample and hold circuit with improved offset compensation | Charles H. Lucas | 1984-03-27 |