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Noise reducer
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Patent number 5,495,299
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Issue date Feb 27, 1996
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Matsushita Electric Industrial Co., Ltd.
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Hidekazu Suzuki
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Ghost canceller
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Patent number 5,099,328
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Issue date Mar 24, 1992
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Matsushita Electric Industrial Co., Ltd.
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Kazuo Kobo
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital data reproducing system
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Patent number 4,673,979
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Issue date Jun 16, 1987
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Matsushita Electric Industrial Co., Ltd.
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Kazuo Kobo
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H04 - ELECTRIC COMMUNICATION TECHNIQUE