Wide-band equalization system
US8121312B2 · kind B2 · utility
3Cited by
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23Claims
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Assignee
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Key dates
| Filing date | Mar 14, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Dec 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A Wide-band Equalization System (“WBES”) based on near- and far-field measurement data. The WBES includes a subwoofer equalizer having an FIR filter together with decimator and interpolator filters for processing low frequency signals. The WBES may also include satellite channels for processing mid- and high-frequency signals, where each satellite channel includes cascaded IIR filters that process mid-frequency and high-frequency signals, respectively. The WBES may also include a DSP that performs the functions required by the IIR and FIR filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.