Digital filter having an upsampler operational at a fractional clock rate
US6738420B1 · kind B1 · utility
6Cited by
2References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Sep 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0621
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital filter includes a number of coefficient generators that are clocked by a clock having a frequency including an undesired component. The coefficient generators, which each have a number of states, are communicatively coupled to multipliers that receive incoming signals and multiply the incoming signals by coefficients produced by the coefficient generators. Based on the magnitude of the undesired coefficient, certain states of the coefficient generators may be repeated or skipped to adjust the time and frequency domain of the output from the digital filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.