Decimator employing finite impulse response digital filters
US4612625A · kind A · utility
14Cited by
2References
2Claims
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Assignee
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Key dates
| Filing date | Oct 12, 1983 |
| Grant date | Sep 16, 1986 |
| Priority date | — |
| Expiry date | Oct 12, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0664
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A decimator of the type having a decimation factor of K, is implemented by a finite impulse response (FIR) filter network of length N. The filter network includes N/K accumulators each of which arithmetically combines samples of an input signal as multiplied by a corresponding set of K network branches, and provides a corresponding output sample. The N/K output samples from the accumulators are provided sequentially at the filter output prior to arrival of the next set of N input signal samples at the filter input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.