Invention Grant
- Patent Title: Driving control apparatus, driving apparatus and driving control method
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Application No.: US17123009Application Date: 2020-12-15
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Publication No.: US11463022B2Publication Date: 2022-10-04
- Inventor: Kyouhei Suzuki
- 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: JPJP2019-227908 20191218
- Main IPC: H02N2/06
- IPC: H02N2/06

Abstract:
A driving control apparatus that controls driving of a vibration actuator having a plurality of electromechanical energy conversion elements. The driving control apparatus includes a controller configured to generate a plurality of driving signals each of which has a same waveform and has a different phase, and to respectively apply the plurality of driving signals to different elements of the plurality of electromechanical energy conversion elements. The controller changes the waveform according to the phase. A shape of a first waveform according to a first phase is closer to a square wave shape than a shape of a second waveform according to a second phase that is larger than the first phase.
Public/Granted literature
- US20210194387A1 DRIVING CONTROL APPARATUS, DRIVING APPARATUS AND DRIVING CONTROL METHOD Public/Granted day:2021-06-24
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