Method for automatically scaling sampled representations of single-valued and multi-valued waveforms
US6356849B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/029
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method automatically scales a sampled representation of a waveform applied to a sampling system, regardless of the nature of the waveform. The method, implemented within a digital oscilloscope or other type of sampling system, achieves amplitude auto-scaling from samples of the applied waveform acquired when the sampling system is un-triggered. The method then determines the nature of the applied waveform based on the number of acquired samples within an intermediate amplitude band and the number of amplitude transitions across the amplitude band. Records are then taken with the sampling system triggered and the occurrence of alternative designated events, based on the nature of the waveform, is detected within the records. Time offset and time gain are adjusted based on a first occurrence and a second occurrence of the designated event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.