Klaas Wortel
19Patents
7h-index
23Co-inventors
66Inventor score
Filing activity: Aug 4, 1998 → Sep 26, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6838942B1 | Efficient class-G amplifier with wide output voltage swing | Electricity | 76 | Expired |
| US6133797A | Self calibrating VCO correction circuit and method of operation | Electricity | 38 | Expired |
| US6496556B1 | Step-down clock control and method for improving convergence for a digitally controlled self-calibrating VCO | Electricity | 15 | Expired |
| US6819196B2 | Crystal oscillator with control feedback to maintain oscillation | Electricity | 13 | Expired |
| US6369647B1 | Demodulator circuit and method of tuning | Electricity | 10 | Expired |
| US6703894B1 | Baseband filter for receivers | Electricity | 9 | Expired |
| US6263199A | Circuit and method of signal frequency conversion | Electricity | 8 | Expired |
| US7310498B2 | Communication protocol for personal computer system human interface devices over a low bandwidth, bi-directional radio frequency link | Electricity | 6 | Expired |
| US7043222B2 | FSK modulator using IQ up-mixers and sinewave coded DACs | Electricity | 5 | Expired |
| US6806742B1 | Phase detector for low power applications | Electricity | 5 | Expired |
| US8478222B2 | I/Q calibration for walking-IF architectures | Electricity | 5 | Active |
| US7415260B2 | Current-mode direct conversion receiver | Electricity | 4 | Expired |
| US10013013B1 | Bandgap voltage reference | Electricity | 3 | Active |
| US7055047B2 | Selective implementation of power management schemes based on detected computer operating environment | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10097140B1 | Method and system for amplifier calibration | Electricity | 0 | Active |
| US9608481B2 | Inductive power supply | Electricity | 0 | Active |
| US6965653B2 | Circuit and method for processing an automatic frequency control signal | Electricity | 0 | Expired |
| US6906587B2 | Current controlled bridge amplifier | Electricity | 0 | Expired |
| US6137997A | Circuit for receiving and transmitting signals and method | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.