Ralph Duncan
27Patents
8h-index
15Co-inventors
68Inventor score
Filing activity: Nov 12, 1999 → Feb 27, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6426680B1 | System and method for narrow band PLL tuning | Electricity | 89 | Expired |
| US6803829B2 | Integrated VCO having an improved tuning range over process and temperature variations | Electricity | 59 | Expired |
| US7092043B2 | Fully integrated tuner architecture | Electricity | 42 | Expired |
| US7019598B2 | Integrated VCO having an improved tuning range over process and temperature variations | Electricity | 30 | Expired |
| US7423699B2 | Fully integrated tuner architecture | Electricity | 25 | Active |
| US8045066B2 | Fully integrated tuner architecture | Electricity | 15 | Active |
| US6710644B2 | Low pass filter corner frequency tuning circuit and method | Electricity | 12 | Expired |
| US6577184B2 | Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current | Electricity | 10 | Expired |
| US9143149B1 | Method and apparatus for calibration of a time interleaved ADC | Electricity | 8 | Active |
| US7821581B2 | Fully integrated tuner architecture | Electricity | 6 | Active |
| US6781451B2 | Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current | Electricity | 6 | Expired |
| US9231609B1 | Systems and methods for frequency generation | Electricity | 6 | Active |
| US6930545B2 | Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current | Electricity | 3 | Expired |
| US9571182B2 | Systems and methods for cancellation of cross-coupled noise | Physics | 2 | Active |
| US9948334B2 | Systems and methods for cancellation of cross-coupled noise | Physics | 2 | Active |
| US9509396B2 | Systems and methods for shared analog-to-digital conversion in a communication system | Electricity | 2 | Active |
| US9912345B2 | Method and system for frequency generation | Electricity | 1 | Active |
| US9543893B2 | Method and system for frequency generation | Electricity | 1 | Active |
| US6894557B2 | Method for tuning a corner frequency of a low pass filter | Electricity | 1 | Expired |
| US10454490B2 | Systems and methods for frequency error corrections in communication systems | Electricity | 0 | Active |
| US7053697B2 | System for tuning a corner frequency of a low pass filter | Electricity | 0 | Expired |
| US9510223B2 | Systems and methods for frequency error correction in communication systems | Electricity | 0 | Active |
| US9537502B2 | Method and apparatus for calibration of a time interleaved ADC | Electricity | 0 | Active |
| US10236969B2 | Systems and methods for frequency error corrections in communication systems | Electricity | 0 | Active |
| US9742487B2 | Systems and methods for shared analog-to-digital conversion in a communication system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.