Electrical audio signal processing systems and devices – Hearing aids – electrical
Reexamination Certificate
2005-03-01
2005-03-01
Kuntz, Curtis (Department: 2643)
Electrical audio signal processing systems and devices
Hearing aids, electrical
C381S320000, C704S233000, C704S256000
Reexamination Certificate
active
06862359
ABSTRACT:
A hearing prosthesis that automatically adjusts itself to a surrounding listening environment by applying Hidden Markov Models is provided. In one aspect, classification results are utilized to support automatic parameter adjustment of a parameter or parameters of a predetermined signal processing algorithm executed by processing means of the hearing prosthesis. According to another aspect, features vectors extracted from a digital input signal of the hearing prosthesis and processed by the Hidden Markov Models represent substantially level and/or absolute spectrum shape independent signal features of the digital input signal. This level independent property of the extracted features vectors provides robust classification results in real-life acoustic environments.
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Leijon Arne
Nordqvist Nils Peter
Bingham & McCutchen LLP
Bolan Michael J.
Ensey Brian
GN ReSound A/S
Kuntz Curtis
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