US Patent 7171178 Tuning circuit having amplitude-varying function
Patent 7171178 was granted and assigned to Sanyo on January, 2007 by the United States Patent and Trademark Office.
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Patent Inventor Names
Akira Hyogo0
Hiroya Yamamoto0
Keiji Morijiri0
Keitaro Sekine0
Masahiro Umewaka0
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Patent abstract
A tuning circuit having an amplitude-varying function is disclosed that comprises a coil, a capacitor, and a resistance-adjusting element connected in parallel to the coil and the capacitor for varying resistance at time of resonance of the tuning circuit, wherein the amplitude of an output signal of the tuning circuit is varied by varying the resistance with the resistance-adjusting element.
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US Patent 07171178 Tuning circuit having amplitude-varying function US Patent 7171178 Tuning circuit having amplitude-varying function
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Patent Number
071711780
Patent Number
71711780
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
071711780
Date of Patent
January 30, 2007
0Patent Application Number
107634410
Date Filed
January 23, 2004
0Official Website
Patent Primary Examiner
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US Patent 07171178 Tuning circuit having amplitude-varying function
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07171178
Date of patent
January 30, 2007
Patent application number
10763441
Date Filed
January 23, 2004
Patent primary examiner
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