Digital filter design
US7251271B1 · kind B1 · utility
5Cited by
11References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2000 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0294
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for designing digital filters are provided. One method includes the steps of determining a real-valued discrete-frequency representation of a desired digital filter and transforming this discrete-frequency representation into a corresponding discrete-time representation. The discrete-time representation is circularly shifted and a window is applied to the discrete time representation to produce a zero-padded reduced length filter. Thereafter input signal x[n] is convolved with the reduced length filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.