Invention Grant
- Patent Title: Vibration type actuator control apparatus, vibration type driving apparatus having the same, interchangeable lens, imaging apparatus, and automatic stage
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Application No.: US17669250Application Date: 2022-02-10
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Publication No.: US11696030B2Publication Date: 2023-07-04
- Inventor: Jun Sumioka
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. I.P. Division
- Priority: JP 21033662 2021.03.03
- Main IPC: H04N5/232
- IPC: H04N5/232 ; H04N23/68 ; H02N2/00 ; G06N20/00

Abstract:
A vibration type actuator control apparatus, which uses a vibration from a vibrator to move a contact member, includes a control unit and a drive unit. The control unit includes first and second learned models, each having a neural network, and outputs control amounts for the drive unit to move the contact member. When a contact member moving target velocity is input, the first learned model outputs a first control amount as one of the control amounts. When a positional deviation is input, the second learned model outputs a second control amount as one of the control amounts. The drive unit moves the contact member using a value based on the first and second control amounts. The positional deviation is in association with a difference between a target position for moving the contact member and a detected position detected when the contact member is moved relative to the vibrator.
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