Non-integer interpolation using cascaded integrator-comb filter
US7324025B1 · kind B1 · utility
9Cited by
5References
12Claims
0Family size
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Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Sep 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/508
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A non-integer CIC interpolation filter is provided for use in sigma-delta digital-to-analog systems, which realizes non-integer interpolation but eliminates the need for coupling of the integrators in the output domain. The present non-integer interpolation filter provides for more attenuation to all of the aliases of the input signal and has eliminated the need of complex computations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.