Spur detection in a sampled waveform in a mixed analog/digital system using the magnitude of the frequency response
US12188964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2019 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Oct 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method, apparatus and computer program product for spur detection in a sampled waveform in a mixed analog/digital system using the magnitude of the frequency response comprising acquiring a sample waveform including a set of discrete uniformly spaced samples from a target system, wherein the sample waveform is a time domain vector; applying FFT transforming the time domain vector into the frequency domain; analyzing the frequency domain response including calculating the magnitude response; and determining whether the sample waveform has spurs including comparing the magnitude response to an average noise floor threshold including determining that the magnitude response having an average noise floor value above the average noise floor threshold has one or more spurs and determining that the magnitude response having an average noise floor value below the average noise floor threshold has no spurs, wherein a spur indicates unaligned data having a delayed bit flip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.