A control device including a control section configured to vibrate a contact region in a case where it is determined that an operation is performed on an input section by a target object coming into contact with the contact region, the input section having the contact region touched by the target object, wherein the control section adjusts a displacement width as a control parameter for performing control of vibrating the contact region, the displacement width being a difference between a local maximum value of displacement of the contact region caused by the vibration and displacement of the contact region in a criterion state.

A vibration actuator capable of reducing variations of pressure force and reaction force acting on a vibrator and a contact member has a specific construction. Vibrator devices respectively have vibrators, each of which includes an elastic member and an electro-mechanical energy conversion element. A contact member contacts the vibrators and is movable in a predetermined direction relatively to the vibrators. A restraint member fixes a first vibrator device among the vibrator devices to restrict a degree of freedom in the predetermined direction. A flexible member connects a second vibrator device among the vibrator devices to the first vibrator device. The flexible member has predetermined rigidity in the predetermined direction and has rigidity, which is lower than the predetermined rigidity, in directions other than the predetermined direction.

A pump contains a pump unit for suctioning and discharging fluid due to electromagnetic drive of a vibration actuator. The vibration actuator includes a fixed body containing one of a coil core portion and a magnet, a movable body containing another one of the coil core portion and the magnet, and a shaft portion for supporting the movable body so that the movable body can perform reciprocating rotation. The pump unit includes a movable wall, and a sealed chamber whose volume can be changed by displacement of the movable wall. The movable body has a pressing portion which can abut against the movable wall to press the movable wall when the movable body performs the reciprocating rotation.

The present disclosure concerns a haptic solenoid assembly for transmission of amplified vibrations to a vibrated member, the haptic solenoid assembly comprising a stationary pole comprising a casing defining a plunger-receiving cavity opening out in the casing and a coil at least partially surrounding the plunger-receiving cavity; a mobile pole comprising a mobile pole body at least partially received in the plunger-receiving cavity and displaceable therein when an electric current is provided to the coil; and a lever-mounting portion protruding outwardly from the plunger-receiving cavity and engageable to the vibrated member; and a solenoid vibration-damping system engaged to the stationary pole and at least partially surrounding the plunger-receiving cavity. The present disclosure also concerns a haptic solenoid system comprising a haptic solenoid assembly and a vibration-transmitting member connected to the lever-mounting end portion of the mobile pole and engageable to the vibrated member.

An actuator device includes a support part, a first movable part, a second movable part, a first connecting part, a second connecting part, a spiral coil provided to the second movable part, a magnetic field generator, a first external terminal provided to the support part; and a first wiring connected to an inner end portion of the coil and the first external terminal. The first wiring includes a lead wiring connected to the first external terminal, and a straddle wiring formed in a shape of a layer, provided to the second movable part so as to straddle the coil, and connected to the inner end portion of the coil and the lead wiring. A thickness of the straddle wiring is smaller than a thickness of the coil. The straddle wiring is electrically insulated from the mirror surface.

A pump control device controls a pump including a vibration actuator for vibrating a vibrating body due to electromagnetic drive caused by electrical current supply to coils, a sealed chamber which includes a movable wall which can be displaced by vibration of the vibrating body so that fluid can be suctioned into an inside of the sealed chamber or discharged from the inside of the sealed chamber, and a discharge portion for communicating the fluid between the sealed chamber and a tank to increase pressure of the fluid. The pump control device contains an obtaining part for obtaining pressure value information, and a control unit for controlling a drive frequency of an electrical current to be supplied to the coils based on the obtained pressure value information.

A vibration generator includes a housing, a first vibrator, and a second vibrator. The first vibrator includes a hollow yoke having a through hole, a magnet disposed within the through hole of the yoke, and a first elastic support member. The second vibrator includes a coil disposed above or below the magnet within the through hole of the yoke, and a second elastic support member to which the coil is fixed and that is disposed to extend from the inside to the outside of the through hole of the yoke and that is fixed to the housing. The first vibrator vibrates at a first natural frequency in a direction connecting both side portions of the yoke. The second vibrator vibrates at a second natural frequency that is different from the first natural frequency, in the direction connecting the both side portions of the yoke.

A method of providing a haptic signal is described therein, the method comprising the steps of providing a first source signal, filtering a mid-range band of the first source signal for restricting a bandwidth of the first source signal to the mid-range band, integrating the filtered mid-range band of the first source signal to identify an amplitude of the filtered first source signal, providing a voltage control amplifier with a proportional calibrated voltage on a basis of the integration of the filtered first source signal for adjusting an amplitude of the filtered source signal, isolating a trans-conductance voltage control amplifier high impedance output from a second source signal with a buffer, filtering the filtered source signal with a low pass filter to identify original sub-frequencies of an audio program and combining the identified original sub frequencies of the audio program with transposed midrange frequencies in a haptic signal.

Systems and methods or a low profile haptic actuator are disclosed. In one embodiment, a system for a low profile haptic actuator includes: a moveable surface comprising a first coil, the moveable surface configured to move in a degree of freedom; a fixed surface beneath the moveable surface, the fixed surface comprising a second coil coupled underneath the first coil; a suspension coupled to the fixed surface and the moveable surface and configured to suspend the moveable surface; and a controller coupled to the first coil and the second coil.

A linear vibration motor has a cover body made from a magnetic material having a planar inner surface (supporting face); a movable element that comprises a magnet and a weight, and that vibrates in the axial direction along the inner surface; an elastic member elastically repelling the vibration of the movable element; and a coil, secured in relation to the cover body, and wherein a winding part that is perpendicular, in respect to the axial direction, to a gap between the movable element and the cover body, where supporting portions for supporting the movable element through the elastic member are provided on both axial-direction end portions on the cover body.