A force generator for introducing vibrational forces into a structure for vibration control of the structure includes an inertial mass, at least one actuator for generating a vibratory movement of the inertial mass relative to the structure, and a drive circuit constructed from components for driving the at least one actuator. At least part of the inertial mass is formed by one component of the drive circuit.

Disclosed is a vibration generating method includes providing a vibration generating device which receives a driving power and generates a vibration, and controlling vibration of a vibrator of the vibration generating device, wherein the vibration of the vibrator is controlled by systematizing an inertia matrix and a stiffness matrix of the vibrator, and wherein the inertia matrix and the stiffness matrix simultaneously satisfy diagonalization. A vibration generating device using this method is also disclosed.

The present invention relates to a method for producing a bone transplant material using an extracted tooth, and to a bone transplant material produced by same, and particularly, to a method for producing a bone transplant material which enables the production of bone transplant material in a short amount of time using an extracted tooth of a patient or a similar tooth.

A high-frequency light-generated focused ultrasound (LGFU) device is provided. The device has a source of light energy, such as a laser, and an optoacoustic lens comprising a concave composite layer with a plurality of light absorbing particles that absorbs laser energy, e.g., carbon nanotubes, and a polymeric material that rapidly expands upon exposure to heat, e.g., polydimethylsiloxane. The laser energy is directed to the optoacoustic lens and thus can generate high-frequency (e.g., 10 MHz) and high-amplitude pressure output (e.g., 10 MPa) focused ultrasound. The disclosure also provides methods of making such new arcuate optoacoustic lenses, as well as methods for generating and using the high-frequency and high-amplitude ultrasound, including for surgery, like lithotripsy and ablation.

A high-frequency light-generated focused ultrasound (LGFU) device is provided. The device has a source of light energy, such as a laser, and an optoacoustic lens comprising a concave composite layer with a plurality of light absorbing particles that absorbs laser energy, e.g., carbon nanotubes, and a polymeric material that rapidly expands upon exposure to heat, e.g., polydimethylsiloxane. The laser energy is directed to the optoacoustic lens and thus can generate high-frequency (e.g., 10 MHz) and high-amplitude pressure output (e.g., 10 MPa) focused ultrasound. The disclosure also provides methods of making such new arcuate optoacoustic lenses, as well as methods for generating and using the high-frequency and high-amplitude ultrasound, including for surgery, like lithotripsy and ablation.

The present disclosure provides methods to integrate piezoelectric micromachined ultrasonic transducer (pMUT) arrays with an application-specific integrated circuit (ASIC) using thermocompression or eutectic/solder bonding. In an aspect, the present disclosure provides a device comprising a first substrate and a second substrate, the first substrate comprising a pMUT array and the second substrate comprising an electrical circuit, wherein the first substrate and the second substrate are bonded together using thermocompression, wherein any set of individual PMUTs of PMUT array is addressable. In another aspect, the present disclosure provides a device comprising a first substrate and a second substrate, the first substrate comprising a pMUT array and the second substrate comprising an electrical circuit, wherein the first substrate and the second substrate are bonded together using eutectic or solder bonding, wherein any set of individual PMUTs of the PMUT array is addressable.

A vibration presentation device for presenting a vibration in a first frequency band by an actuator having a resonance frequency in a second frequency band larger than the first frequency band includes: acquisition processor circuitry configured to acquire a signal including at least a vibration in the first frequency band, which is a resonance frequency lower than the second frequency band; a calculator configured to obtain a local maximum value of the vibration in the first frequency band acquired by the acquisition processor circuitry and obtain, based on the local maximum value, a local maximum value time that is a time of reaching the local maximum value; and a controller configured to, based on the local maximum value time calculated by the calculator, control the actuator to generate a single wave within a transitioned time that is a time before, at and after the local maximum value time.

Systems and methods are provided that relate to vibrational input elements configured to provide inputs to control an application executed by a mobile computing device. The vibrational input elements may produce distinct vibration patterns that are detectable by a sensor of the mobile computing device. The respective vibration patterns may correspond to one or more actions that may be performed in relation to the application.

Systems and methods are provided that relate to vibrational input elements configured to provide inputs to control an application executed by a mobile computing device. The vibrational input elements may produce distinct vibration patterns that are detectable by a sensor of the mobile computing device. The respective vibration patterns may correspond to one or more actions that may be performed in relation to the application.

The present disclosure provides an ultrasonic probe and an ultrasonic device. The ultrasonic probe includes a backing part and a flexible circuit board. The backing part includes a curved top surface and a first side surface connected to one side of the top surface. The flexible circuit board includes a main board portion and a first connection portion. The main board portion is disposed on the top surface. One end of the first connection portion is connected with one side of the main board portion, and the other end of the first connection portion is configured to transmit an electrical signal. The first connection portion includes a plurality of branches. The plurality of branches of the first connection portion is disposed on the first side surface. The ultrasonic device includes the ultrasonic probe.