Reconstruction of multi-phase signals from repetitive samples
US6188966A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/345
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of connecting displayed samples of a signal, where the samples are obtained by sequential or random repetitive sampling. Three example embodiments are presented. In a first embodiment, the system decides whether or not to connect to the next consecutive sample, based on the outcome of comparison of the magnitude of the slope to a slew rate threshold. In the second embodiment, the system looks ahead (or behind) up to M samples to see if any samples represent valid slew rates, and connects to the first sample representing a valid slew rate. In the third embodiment, the system looks ahead (or behind) M samples and connects to the sample in the next M samples that represents the smallest valid slew rate. In each embodiment, if no sample represents a valid slew rate, no connection is drawn. In the second and third example embodiments, by looking ahead (or behind) M samples, the system can potentially resolve a waveform with up to M phases and can accommodate trigger placement uncertainty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.