Invention Grant
- Patent Title: Driving control apparatus, image pickup apparatus, and control method
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Application No.: US18061551Application Date: 2022-12-05
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Publication No.: US11838632B2Publication Date: 2023-12-05
- Inventor: Junichi Maniwa , Kenya Fukabori , Yusuke Kazami , Takeshi Omata , Sairi Iwata , Ryota Ogawa
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP 21199261 2021.12.08 JP 22145279 2022.09.13
- Main IPC: H04N23/68
- IPC: H04N23/68

Abstract:
A driving control apparatus is configured to control a driving unit that moves relative to each other a vibrator that is excited to vibrate by applying a first driving signal and a second driving signal that have a phase difference with each other, and a contact member that contacts the vibrator. The driving control apparatus includes a first control unit configured to control the phase difference, and a second control unit configured to control a voltage amplitude of each of the first driving signal and the second driving signal. The second control unit controls the voltage amplitude so that a change rate of the voltage amplitude increases as an absolute value of the phase difference decreases.
Public/Granted literature
- US20230179864A1 DRIVING CONTROL APPARATUS, IMAGE PICKUP APPARATUS, AND CONTROL METHOD Public/Granted day:2023-06-08
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