Low power decimation system and method of deriving same
US7010557B2 · kind B2 · utility
1Cited by
8References
10Claims
0Family size
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Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Oct 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0671
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A decimation system comprising a plurality, L, of cascaded Finite Impulse Response (FIR) decimation filters. Each decimation filter has a transfer function of the form H(z)=(1+z−1)N, where N is an integer. Each FIR decimation filter performs decimation by a common factor I. The cascaded FIR decimation filters together achieve a decimation result substantially identical to that of an Nth-order CIC filter (that is, a CIC filter having N integrator stages) that performs decimation by a factor IL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.