Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Reexamination Certificate
2006-03-06
2011-12-20
Mei, Xu (Department: 2614)
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
C381S096000
Reexamination Certificate
active
08081766
ABSTRACT:
A method is provided for creating a series of digital signal processing (DSP) filters to improve the transient response of a loudspeaker, wherein the loudspeaker is formed of multiple components. The method includes generally six steps. The first step involves identifying a substantially linear, time-invariant, and spatially-consistent loudspeaker mechanism causing transient response distortion. The second step involves characterizing the identified mechanism. The third step involves determining the characterized mechanism's two-port response. The fourth step involves establishing a target response for the characterized mechanism. The fifth step involves calculating an ideal filter to achieve the target response. The sixth step involves designing a cost-reduced filter based on the ideal filter.
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Christensen O'Connor Johnson & Kindness PLLC
Lao Lun-See
LOUD Technologies Inc.
Mei Xu
LandOfFree
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