Method of setting a transfer function of an adaptive filter
US7277907B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 29, 2004 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0294
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of setting a transfer function of an adaptive filter. The adaptive filter is used for processing an audio signal. The method includes setting a first, a second, and a third pole, setting a first zero without resting upon the audio signal. A real part of the first zero is a negative value and an imaginary part of the first zero is a positive value. A second zero is set having a real part corresponding a positive value and an imaginary part corresponding to a negative value and a third zero is set according to a key shifting associated with the audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.