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FMCW sensor
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Issue date Nov 13, 2001
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Siemens Aktiengesselschaft
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Patric Heide
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G01 - MEASURING TESTING
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Mixer
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Patent number 5,680,078
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Issue date Oct 21, 1997
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Murata Manufacturing Co., Ltd.
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Mitsuo Ariie
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H03 - BASIC ELECTRONIC CIRCUITRY
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Double-balanced mixer circuit
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Patent number 5,559,457
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Issue date Sep 24, 1996
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Sanyo Electric Co., Ltd.
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Hisanori Uda
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H03 - BASIC ELECTRONIC CIRCUITRY
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Double superheterodyne tuner
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Patent number 4,661,998
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Issue date Apr 28, 1987
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Matsushita Electric Industrial Co. Ltd.
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Sadahiko Yamashita
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H03 - BASIC ELECTRONIC CIRCUITRY
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