Spectrum analyzer with frequency band selection
US4321680A · kind A · utility
21Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Apr 22, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A spectrum analyzer for FFT analyzing and displaying the frequency spectrum of a digital signal over a given frequency band (background), as well as over a more limited frequency band (foreground). The spectrum of the signal over each frequency band is calculated and displayed so as to appear on a screen as a simultaneous display. The position of the limited frequency band as well as the width thereof, may be varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.