John J. Pickerd
61Patents
12h-index
32Co-inventors
84Inventor score
Filing activity: Apr 4, 1997 → Jul 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5978742A | Method and apparatus for digital sampling of electrical waveforms | Physics | 63 | Expired |
| US6615148B2 | Streaming distributed test and measurement instrument | Physics | 31 | Expired |
| US6892150B2 | Combined analog and DSP trigger system for a digital storage oscilloscope | Physics | 24 | Expired |
| US6807496B2 | Acquisition system for a long record length digital storage oscilloscope | Physics | 19 | Expired |
| US7271575B2 | Oscilloscope based return loss analyzer | Physics | 18 | Expired |
| US7460983B2 | Signal analysis system and calibration method | Physics | 17 | Active |
| US8650010B2 | Apparatus and method for generating a test signal with emulated crosstalk | Physics | 17 | Active |
| US6748335B2 | Acquisition system for a multi-channel relatively long record length digital storage oscilloscope | Physics | 15 | Expired |
| US6681191B1 | Frequency domain analysis system for a time domain measurement instrument | Physics | 14 | Expired |
| US7474972B2 | Bandwidth multiplication for a test and measurement instrument using non-periodic functions for mixing | Physics | 13 | Active |
| US7408363B2 | Signal analysis system and calibration method for processing acquires signal samples with an arbitrary load | Physics | 13 | Active |
| US7414411B2 | Signal analysis system and calibration method for multiple signal probes | Physics | 13 | Active |
| US7298206B2 | Multi-band amplifier for test and measurement instruments | Electricity | 12 | Expired |
| US6459256B1 | Digital storage oscilloscope | Physics | 9 | Expired |
| US7405575B2 | Signal analysis system and calibration method for measuring the impedance of a device under test | Physics | 8 | Active |
| US6525522B1 | System for determining the phase and magnitude of an incident signal relative to a cyclical reference signal | Physics | 8 | Expired |
| US8588703B2 | Arbitrary multiband overlay mixer apparatus and method for bandwidth multiplication | Physics | 6 | Active |
| US6917889B2 | Method and apparatus for visually time-correlating waveform measurements to a source waveform | Physics | 5 | Expired |
| US7257497B2 | Sequential frequency band acquisition apparatus for test and measurement instruments | Physics | 5 | Expired |
| US7206722B2 | Oscilloscope having an enhancement filter | Physics | 4 | Expired |
| US6915218B2 | Method of constraints control for oscilloscope timebase subsection and display parameters | Physics | 4 | Expired |
| US9140723B2 | Signal acquisition probe storing compressed or compressed and filtered time domain impulse or step response data for use in a signal measurement system | Physics | 3 | Active |
| US9432042B2 | Test and measurement instrument including asynchronous time-interleaved digitizer using harmonic mixing | Electricity | 3 | Active |
| US8928514B1 | Harmonic time domain interleave to extend oscilloscope bandwidth and sample rate | Physics | 2 | Active |
| US10345339B2 | Group delay based averaging | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.