Control apparatus of vibration-type actuator

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United States of America Patent

PATENT NO 9800180
SERIAL NO

15046313

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Abstract

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Information regarding a rotational speed is detected by utilizing a variation in the amplitude at a frequency corresponding to the number of a plurality of protrusions of a vibrating member generated in an S-phase signal detected from a vibration detection electrode of a vibration-type actuator.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO JAPAN DAEJEON 3 MEATBALLS 30 2 TOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sumioka, Jun Yokohama, JP 45 205

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