Method of high pass filtering a data set
US6790688B2 · kind B2 · utility
2Cited by
10References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30148
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved method of high pass filtering a data set includes flattening the data set and then filtering the flattened data set with an adaptive filter. The data set is flattened by fitting it to a predetermined function, and then obtaining the difference between the original data set and the fitted data set. Beneficially, the predetermined function is a polynomial. The adaptive filter includes a masking function that has a constant, non-zero value (e.g., 1) within the bounds of the original data set and value of zero outside the bounds of the original data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.