Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
Reexamination Certificate
2008-05-13
2008-05-13
Ni, Suhan (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Noise compensation circuit
C381S312000
Reexamination Certificate
active
07372969
ABSTRACT:
A method and a system for defining a threshold value (Omax, Omin, OTR) serving to limit the output signal of a processing unit which is fed an input signal. An input-signal level is determined and the threshold value (Omax, Omin, OTR) is set as a function of that input-signal level. By virtue of the fact that the threshold value is set as a function of the input-signal level, i.e. in adaptive fashion, it is also possible to limit transient noise whose level is well below the maximum value of the threshold value. As a result, when the method or system is applied in a hearing aid, the hearing comfort of the wearer of the hearing aid can be significantly enhanced.
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Search report for Australian Patent Application No. 2001276230, dated Nov. 16, 2007.
Ni Suhan
Pearne & Gordon LLP
Phonak AG
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