Digital apparatus for waveform measurement
US4142146A · kind A · utility
31Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1975 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Jul 7, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Digital instrumentation for waveform measurement including method and apparatus for providing irregularly spaced sampling times to prevent misleading visual patterns of coordinate points due to the presence of signal frequencies above the Nyquist frequency. The method and apparatus includes means for plotting coordinate points having abscissa positions corrected according to actual irregular sampling times, method and apparatus whereby irregularities are repeated for each signal sweep, and method and apparatus utilizing a bit reversal system to achieve the irregularly spaced sampling times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.