Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate
2000-11-29
2011-12-27
Faulk, Devona (Department: 2614)
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Counterwave generation control path
C381S071110, C381S071120, C381S071100, C381S056000, C381S107000, C381S108000
Reexamination Certificate
active
08085943
ABSTRACT:
A noise extraction method in which an environmental input which includes a noise indicia is selectively modified in accordance with an algorithm that includes one or more factors representing time response, amplitude of response, and error correction. The algorithm may also include thresholding, delay or convergence, among other techniques.
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Applicant's admitted prior art, Figures 1A-1E, Figure 2, pp. 2-11.
Applicant's admitted prior art, Figures 1A-1E, Figure 2, pp. 2-11.
Applicant's admitted prior art, Figures la-1E, Figure 2, pp. 2-11.
Faulk Devona
Pillsbury Winthrop Shaw & Pittman LLP
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