System and method for increasing sample rate converter filter coefficient derivation speed
US6512468B1 · kind B1 · utility
61Cited by
10References
15Claims
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Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0621
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for, and method of, increasing sample rate converter filter coefficient derivation and running speed and a digital signal processor incorporating the system or the method. In one embodiment, the system includes: (1) a coefficient table containing a matrix of predefined filter coefficients for each of a plurality of alpha intervals and (2) an intra-range interpolator that adjusts the predefined filter coefficients for a specific alpha within the alpha interval to yield filter coefficients specific to the alpha.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.