Charles D. Thompson
26Patents
11h-index
33Co-inventors
75Inventor score
Filing activity: Nov 3, 1975 → Dec 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6197575A | Vascularized perfused microtissue/micro-organ arrays | Physics | 313 | Expired |
| US5274375A | Delta-sigma modulator for an analog-to-digital converter with low thermal noise performance | Electricity | 67 | Expired |
| US5257026A | Method and apparatus for calibrating a multi-bit delta-sigma modular | Electricity | 62 | Expired |
| US5351050A | Detent switching of summing node capacitors of a delta-sigma modulator | Electricity | 25 | Expired |
| US7457605B2 | Low noise image reject mixer and method therefor | Electricity | 25 | Active |
| US4766561A | Method and apparatus for implementing multiple filters with shared components | Electricity | 24 | Expired |
| US5528239A | Low noise transmission of output data from a delta-sigma modulator | Electricity | 17 | Expired |
| US5113189A | Frequency translating coherent analog to digital conversion system for modulated signals | Electricity | 16 | Expired |
| US4999625A | Generation of a digital correction signal to compensate for gain mismatches in a sigma delta modulator | Electricity | 14 | Expired |
| US4785411A | Cascade filter structure with time overlapped partial addition operations and programmable tap length | Electricity | 13 | Expired |
| US4002466A | Method of reducing ores | Electricity | 12 | Expired |
| US7386284B2 | Controlling the gain of a remote active antenna | Electricity | 11 | Expired |
| US5001665A | Addressing technique for providing read, modify and write operations in a single data processing cycle with serpentine configured RAMs | Physics | 10 | Expired |
| US7266195B1 | Surge clamp protection circuit | Electricity | 9 | Expired |
| US5028924A | Digital correction of gain mismatch in a sigma delta modulator | Electricity | 7 | Expired |
| US7643600B2 | Techniques for performing gain and phase correction in a complex radio frequency receiver | Electricity | 7 | Active |
| US6271715A | Boosting circuit with supply-dependent gain | Electricity | 7 | Expired |
| US5698805A | Tone signal generator for producing multioperator tone signals | Physics | 6 | Expired |
| US7773968B2 | Interface/synchronization circuits for radio frequency receivers with mixing DAC architectures | Electricity | 5 | Active |
| US6538024B1 | Felbamate derived compounds | Chemistry; Metallurgy | 5 | Expired |
| US4275020A | Gas-liquid dissolving tank | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6759402B2 | Cyclic felbamate derived compounds | Chemistry; Metallurgy | 2 | Expired |
| US4099958A | Method of producing vanadium | Electricity | 1 | Expired |
| US8222721B2 | Integrated circuit suitable for use in radio receivers | Electricity | 0 | Active |
| US7221319B2 | Mobile satellite receiver system | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.