Phase-advanced filter for robust resonance cancellation
US6710965B2 · kind B2 · utility
5Cited by
25References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Oct 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0941
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A filter for attenuating a resonance mode without substantial phase margin loss. The filter comprises a transfer function having an additional pole, such that the phase of the input signal is advanced. The phase-advanced filter substantially attenuates all frequencies above a selected center frequency while avoiding substantial phase margin loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.