Method of signal analysis employing histograms to establish stable, scaled displays in oscilloscopes
US5495168A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Sep 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of signal analysis for establishing display scaling and stable triggering for digital oscilloscopes employs amplitude and time histograms to analyze an input signal and establish the required conditions. An amplitude histogram analysis method is first used to determine the minimum and maximum amplitude levels of the signal, and then a time histogram analysis method is used to determine the predominant time intervals occurring in the input signal. From these two analyses, vertical gain adjustments and time base settings adjustments may be made either manually or automatically, and triggering levels established to provide a stable, usable display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.