Markus Freidhof
38Patents
5h-index
22Co-inventors
65Inventor score
Filing activity: Aug 14, 2001 → May 14, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6518894B2 | Device and method for sampling rate conversion | Electricity | 62 | Expired |
| US6636165B2 | Device and method for conversion of sampling rate | Electricity | 16 | Expired |
| US8195413B2 | Measuring device for a preview display of several time-variable electrical signals | Physics | 9 | Active |
| US6947508B2 | Method and apparatus for estimating the frequency and/or phase of a digital signal | Electricity | 9 | Expired |
| US7860674B2 | Method and system for secure digital triggering for an oscilloscope | Physics | 5 | Active |
| US9091724B2 | Synthesizer having adjustable, stable and reproducible phase and frequency | Physics | 4 | Active |
| US8952681B2 | Measuring machine and measuring method for measuring differential signals | Physics | 4 | Active |
| US7646766B2 | Signal-processing device with improved triggering | Physics | 4 | Expired |
| US8208594B2 | Method and device for clock-data recovery | Electricity | 3 | Active |
| US10168889B2 | Measuring method and a measuring device with fingertip zoom | Physics | 3 | Active |
| US6559781B2 | Device and method for sampling rate conversion | Electricity | 3 | Expired |
| US6965242B2 | Procedure and apparatus for the determination of the noise level of an electronic object to be measured | Physics | 2 | Expired |
| US8487607B2 | Method and device for digital triggering of a measurement signal having a superimposed noise signal | Physics | 1 | Active |
| US8040125B2 | Device and method for the analysis of a measured signal transmitted via a multi-channel system | Physics | 1 | Active |
| US11143679B2 | Method and apparatus for processing a measurement signal | Physics | 1 | Active |
| US9678153B2 | Method for determining time differences between signals measured by at least two coupled measuring devices and measurement system and corresponding switching device | Physics | 1 | Active |
| US8625729B2 | Method and device for clock data recovery | Electricity | 1 | Active |
| US10775417B2 | Oscilloscope and method | Electricity | 0 | Active |
| US9250268B2 | Measuring device having a trigger unit | Physics | 0 | Active |
| US7359469B2 | Signal delaying device and method for dynamic delaying of a digitally sampled signal | Electricity | 0 | Expired |
| US9709610B2 | System comprising a probe and a measuring device | Physics | 0 | Active |
| US8046182B2 | Method and system for digital triggering of signals on the basis of two triggering events separated by a time difference | Physics | 0 | Active |
| US11609246B2 | Test and measurement device as well as method for applying a trigger | Physics | 0 | Active |
| US10620264B2 | Measuring system as well as method for analyzing an analog signal | Physics | 0 | Active |
| US8228331B2 | Method and device for displaying ordinate-abscissa value pairs on a display device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.