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Digital hearing aid system
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Patent number 7,433,481
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Issue date Oct 7, 2008
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Sound Design Technologies, Ltd.
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Stephen W. Armstrong
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital quasi-RMS detector
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Patent number 7,076,073
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Issue date Jul 11, 2006
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Gennum Corporation
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Stephen W. Armstrong
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital hearing aid system
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Patent number 6,937,738
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Issue date Aug 30, 2005
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Gennum Corporation
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Stephen W. Armstrong
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Clipping circuit
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Patent number 5,029,281
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Issue date Jul 2, 1991
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Gennum Corporation
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Stephen W. Armstrong
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H03 - BASIC ELECTRONIC CIRCUITRY