Electrical audio signal processing systems and devices – Noise or distortion suppression – Using signal channel and noise channel
Reexamination Certificate
2006-09-19
2006-09-19
Chin, Vivian (Department: 2615)
Electrical audio signal processing systems and devices
Noise or distortion suppression
Using signal channel and noise channel
C381S094200, C381S094100, C381S071600
Reexamination Certificate
active
07110554
ABSTRACT:
An adaptive signal processing system for improving a quality of a signal. The system includes an analysis filterbank for transforming a primary information signal in time domain into oversampled sub-band primary signals in frequency domain and an analysis filterbank for transforming a reference signal in time domain into oversampled sub-band reference signals. Sub-band processing circuits process the signals output from the filterbanks to improve a quality of an output signal. A synthesis filterbank can combine the outputs of the sub-band processing circuits to generate the output signal.
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Brennan Robert L.
Hermann David
Nadjar Hamid Sheikhzadeh
Schneider Todd
Tam King
AMI Semiconductor Inc.
Chin Vivian
Faulk Devona E.
Gardner Groff Santos & Greenwald PC
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