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    CONTROL DEVICE AND VIBRATION PRESENTING APPARATUS
    4.
    发明公开
    CONTROL DEVICE AND VIBRATION PRESENTING APPARATUS 审中-公开

    公开(公告)号：EP4343496A1

    公开(公告)日：2024-03-27

    申请号：EP23198042.6

    申请日：2023-09-18

    申请人： MITSUMI ELECTRIC CO., LTD.

    发明人： DAN, Toru ,  NGUYEN, Thi Hong Thu

    IPC分类号： G06F3/01 ,  G06F3/041 ,  B06B1/04 ,  H02P25/032

    摘要： Provided is a control device controlling an electromagnetic actuator that drives an operation device, supported in an elastically vibratable manner by an elastic support part, in one direction of a vibration direction of the operation device to vibrate. The control device includes a circuit that applies a main driving signal to a coil of the electromagnetic actuator to start vibration of the operation device in response to a touch operation on the operation device, then applies a sub-driving signal to the coil to adjust an attenuation period of the vibration. The sub-driving signal has a variable voltage varying with an offset voltage, as a center value, offset from a zero voltage, and a waveform that indicates a variation in the variable voltage is a sine function curve or a cosine function curve. The circuit applies the sub-driving signal while changing the offset voltage for each cycle.

    CONTROL DEVICE AND VIBRATION PRESENTING APPARATUS
    5.
    发明公开
    CONTROL DEVICE AND VIBRATION PRESENTING APPARATUS 审中-公开

    公开(公告)号：EP4343495A1

    公开(公告)日：2024-03-27

    申请号：EP23198034.3

    申请日：2023-09-18

    申请人： MITSUMI ELECTRIC CO., LTD.

    发明人： DAN, Toru ,  NGUYEN, Thi Hong Thu

    IPC分类号： G06F3/01 ,  G06F3/041 ,  B06B1/04 ,  H02P25/032

    摘要： Provided is a control device controlling an electromagnetic actuator that drives an operation device, supported in an elastically vibratable manner by an elastic support part, in one direction of a vibration direction of the operation device to vibrate the operation device. The control device includes a circuit that applies a main driving signal to a coil of the electromagnetic actuator to start vibration of the operation device in response to a touch operation on the operation device, then applies a sub-driving signal to the coil to adjust an attenuation period of the vibration. The sub-driving signal has a variable voltage varying with an offset voltage, as a center value, offset from a zero voltage, and a waveform that indicates a variation in the variable voltage is a sine function curve or a cosine function curve.

    ACTUATOR
    6.
    发明公开
    ACTUATOR 审中-公开

    公开(公告)号：EP4333276A1

    公开(公告)日：2024-03-06

    申请号：EP23192607.2

    申请日：2023-08-22

    申请人： Nidec Instruments Corporation

    发明人： HATANO, Shinji

    IPC分类号： H02K33/16 ,  B06B1/04

    摘要： An actuator includes a movable body, a support body having a coil holder, a connection body connected with the movable body and the support body, and a magnetic drive circuit having a coil held by the coil holder and a magnet for vibrating the movable body. The coil holder has a plate part which surrounds at least a part of the coil, and the movable body has a yoke holding the magnet. The plate part has a coil holding part along an outer edge of the coil and a connection body fixing part whose plate thickness is thinner than that of the coil holding part. The connection body includes at least one of a first connection body connecting a first facing part of the yoke with the connection body fixing part and a second connection body connecting a second facing part of the yoke with the connection body fixing part.

    METHODS AND SYSTEMS OF VIBRATING A SCREEN
    8.
    发明公开
    METHODS AND SYSTEMS OF VIBRATING A SCREEN 审中-公开

    公开(公告)号：EP4286061A2

    公开(公告)日：2023-12-06

    申请号：EP23204391.9

    申请日：2014-05-09

    申请人： IMAX Theatres International Limited

    发明人： KOMARNYCKY, Oliver Nicholas ,  HERATI, Hamed ,  TREMBLAY, Denis Gilles

    IPC分类号： B06B1/04

    摘要： Screen vibration systems are provided that can vibrate theatre screens using acoustical, electromagnetic, or another type of energy while reducing the presence of image artifacts that may otherwise be visible as result of vibrating the screen. In one example of a screen vibration system, the system includes a screen, a permanent magnet mounted to the screen, and a magnetic source positioned with respect to the permanent magnet and uncoupled from the screen. The screen is moveable in response to a changing magnetic field from the magnetic source.

    VIBRATION ACTUATOR AND VIBRATION PRESENTING APPARATUS
    9.
    发明公开
    VIBRATION ACTUATOR AND VIBRATION PRESENTING APPARATUS 审中-公开

    公开(公告)号：EP4234107A2

    公开(公告)日：2023-08-30

    申请号：EP23180946.8

    申请日：2022-01-27

    申请人： Minebea Mitsumi Inc.

    发明人： Takahashi, Yuki ,  Ishitani, Tomoya ,  Hashino, Junichi ,  Sato, Soichi

    IPC分类号： B06B1/04

    摘要： A load detector includes: a strain generating body that includes a first fixing part fixable to a device, a second fixing part fixable to an actuator, and a strain part provided between the first and second fixing parts, a pressing operation being performed on the device by an operator, the actuator giving vibration to the device; a strain sensor that detects strain generated in the strain part in accordance with the pressing operation; and a regulating part provided at the first fixing part. When the device moves in a first direction separating from the actuator, the regulating part regulates the movement by engaging with an engaged part of the actuator.