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AssigneeCanon Kabushiki Kaisha
InventorSatoshi Tsuchiya
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A vibration-type driving apparatus that is capable of detecting an undesired vibration in a vibrating body more accurately than conventional detection methods even if a frequency of the undesired vibration falls inside a range of driving frequencies or is an integer multiple of a driving frequency. The driven body which is brought into contact with the vibrating body is driven by generating a driving vibration in the vibrating body through application of driving voltage to the electro-mechanical energy conversion element. An electro-mechanical energy conversion element of the vibrating body has a first sensor phase and a second sensor phase placed at different locations in the vibrating body. A vibration of the vibrating body is detected by using a result of comparison between an output signal from the first sensor phase and an output signal from the second sensor phase.
A vibration-type driving apparatus that has a ring-shaped vibrating body having an electro-mechanical energy conversion element and a driven body that comes into contact with the vibrating body, and drives the driven body by generating a driving vibration in the vibrating body through application of driving voltage to the electro-mechanical energy conversion element, comprising:
A control method for a vibration-type driving apparatus that has a ring-shaped vibrating body having an electro-mechanical energy conversion element and a driven body that comes into contact with the vibrating body, and drives the driven body by generating a driving vibration in the vibrating body through application of driving voltage to the electro-mechanical energy conversion element, the control method comprising:
A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for a vibration-type driving apparatus that has a ring-shaped vibrating body having an electro-mechanical energy conversion element and a driven body that comes into contact with the vibrating body, and drives the driven body by generating a driving vibration in the vibrating body through application of driving voltage to the electro-mechanical energy conversion element,
Dependencies are inferred from the claim text.