Ion Opris
87Patents
20h-index
59Co-inventors
91Inventor score
Filing activity: Nov 10, 1994 → Jan 3, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6130632A | Digitally self-calibrating current-mode D/A converter | Electricity | 70 | Expired |
| US5710563A | Pipeline analog to digital converter architecture with reduced mismatch error | Electricity | 60 | Expired |
| US8743082B2 | Controller architecture for combination touch, handwriting and fingerprint sensor | Emerging Cross-Sectional Technologies | 40 | Active |
| US8742964B2 | Noise reduction method with chopping for a merged MEMS accelerometer sensor | Performing Operations; Transporting | 38 | Active |
| US6549065B2 | Low-voltage bandgap reference circuit | Physics | 38 | Expired |
| US6097326A | Algorithmic analog-to-digital converter with reduced differential non-linearity and method | Electricity | 37 | Expired |
| US5963156A | Sample and hold circuit and method with common mode differential signal feedback for converting single-ended signals to differential signals | Electricity | 36 | Expired |
| US6407622B1 | Low-voltage bandgap reference circuit | Physics | 33 | Expired |
| US5847607A | High speed fully differential operational amplifier with fast settling time for switched capacitor applications | Electricity | 32 | Expired |
| US5838200A | Differential amplifier with switched capacitor common mode feedback | Electricity | 29 | Expired |
| US5541602A | Multi-phased pipeland analog to digital converter | Electricity | 27 | Expired |
| US5861828A | Apparatus and method for monotonic digital calibration of a pipeline analog-to-digital converter | Electricity | 26 | Expired |
| US5668549A | Radix 2 architecture and calibration technique for pipelined analog to digital converters | Electricity | 25 | Expired |
| US6121824A | Series resistance compensation in translinear circuits | Physics | 23 | Expired |
| US8754694B2 | Accurate ninety-degree phase shifter | Physics | 23 | Active |
| US5889486A | Split capacitor array for digital-to-analog signal conversion | Electricity | 23 | Expired |
| US6426669B1 | Low voltage bandgap reference circuit | Physics | 23 | Expired |
| US6642778B2 | Low-voltage bandgap reference circuit | Physics | 23 | Expired |
| US5929796A | Self-calibrating reversible pipeline analog to digital and digital to analog converter | Electricity | 22 | Expired |
| US7405689B2 | Predictive analog to digital converters and methods of using | Electricity | 21 | Expired |
| US6342919B2 | Power saving method using interleaved programmable gain amplifier and A/D converters for digital imaging devices | Electricity | 20 | Expired |
| US5838191A | Bias circuit for switched capacitor applications | Electricity | 19 | Expired |
| US5528185A | CMOS strobed comparator with programmable hysteresis | Electricity | 19 | Expired |
| US6060912A | High speed strobed comparator circuit having a latch circuit | Electricity | 18 | Expired |
| US9094027B2 | Micro-electro-mechanical-system (MEMS) driver | Electricity | 17 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.