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Audio limiting circuit
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Patent number 7,242,783
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Issue date Jul 10, 2007
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Plantronics, Inc.
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William A. Weeks
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H03 - BASIC ELECTRONIC CIRCUITRY
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Audio limiting circuit
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Patent number 7,013,011
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Issue date Mar 14, 2006
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Plantronics, Inc.
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William A. Weeks
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H03 - BASIC ELECTRONIC CIRCUITRY
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Auditory user interface
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Patent number 6,704,413
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Issue date Mar 9, 2004
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Plantronics, Inc.
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William A. Weeks
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G06 - COMPUTING CALCULATING COUNTING