Motor controller

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United States of America Patent

PATENT NO 8901872
SERIAL NO

13726747

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There are provided: a plurality of notch filters which are arranged inside a control system for feedback-controlling a moving operation of a moving section of a motor and attenuate signal components having near frequencies with a notch frequency at a center in an input signal; a plurality of oscillation extracting filters which are set with different frequency bands as being corresponded to the respective notch filters and extract oscillating components in the set frequency bands from a speed detection signal; and a plurality of notch controlling sections which are arranged with respect to the respective oscillation extracting filters and control the notch frequencies of the corresponding notch filters so as to decrease amplitudes of the oscillating components extracted by the oscillation extracting filters.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC CORPORATION1006 OAZA KADOMA KADOMA-SHI OSAKA 571-8501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Hiroshi Osaka, JP 157 1919
Nishizono, Masaru Osaka, JP 13 99
Tazawa, Toru Osaka, JP 37 514

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  • 5 Citation Count
  • G05B Class
  • 5.30 % this patent is cited more than
  • 11 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges262818838161711412701 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +020406080100120140160180200220240260280300

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