Multistage digital filtering utilizing several criteria
US4375081A · kind A · utility
18Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1980 |
| Grant date | Feb 22, 1983 |
| Priority date | — |
| Expiry date | Dec 5, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/347
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for filtering a sequence of digital values representing a stroke of a stylus on a tablet averages sets of digital values, resamples the averaged digital values to accept only those having greater than a minimum amplitude separation and then averages sets of the resampled digital values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.