US 11,838,632 B2
Driving control apparatus, image pickup apparatus, and control method
Junichi Maniwa, Tokyo (JP); Kenya Fukabori, Tokyo (JP); Yusuke Kazami, Kanagawa (JP); Takeshi Omata, Kanagawa (JP); Sairi Iwata, Kanagawa (JP); and Ryota Ogawa, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 5, 2022, as Appl. No. 18/061,551.
Claims priority of application No. 2021-199261 (JP), filed on Dec. 8, 2021; and application No. 2022-145279 (JP), filed on Sep. 13, 2022.
Prior Publication US 2023/0179864 A1, Jun. 8, 2023
Int. Cl. H04N 23/68 (2023.01)
CPC H04N 23/685 (2023.01) 14 Claims
OG exemplary drawing
 
1. A driving control apparatus 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 comprising at least one processor, and a memory coupled to the at least one processor, the memory having instructions that, in a case where executed by the processor, perform operations as:
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,
wherein 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.