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Detection and control of diaphragm collapse in condenser microphones
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Sigma delta modulator having enlarged dynamic range due to stabilized signal swing
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Miniature microphone with balanced termination
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High efficiency driver for miniature loudspeakers
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Encoder
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US6888408B2May 3, 2005
Preamplifier for two terminal electret condenser microphones
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Multi-functional control
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US7110560B2Sep 19, 2006
Electret condensor microphone preamplifier that is insensitive to leakage currents at the input
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US7946890B1May 24, 2011
Adapter for an electronic assembly
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US10021498B2Jul 10, 2018
Method of manufacturing assemblies for hearing aids
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