Patent
Ring type piezoelectric ultrasonic resonator and piezoelectric ultrasonic rotary motor using the same
TLDR
In this article, a ring type piezoelectric ultrasonic resonator with an integral multiple of 4 segments is described. And the number of the segments of the piezelectric ceramic is an integral multiplicative multiple of four.Abstract:
A ring type piezoelectric ultrasonic resonator includes a piezoelectric ceramic segmented for each quarter of wavelength of an applied AC electric field, wherein the piezoelectric ceramic is alternately polarized in polarization units each having two segments, and a sine wave AC electric field and a sine wave AC electric field having a predetermined phase difference from the sine wave AC electric field are alternately applied to each of the segments. Further, the number of the segments of the piezoelectric ceramic is an integral multiple of 4. Moreover, the sine wave AC electric field applied to each of the segments of the piezoelectric ceramic has a phase difference of 90-degree with respect to adjacent segments.read more
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Patent
Systems and methods for friction displays and additional haptic effects
TL;DR: In this article, the authors present a method for detecting a touch occurring in a touch area when an object contacts a touch surface and selecting a composite haptic effect to generate in response to the touch, the composite haptics including at least one surface-based haptic effects and at least two other effects.
Patent
Systems and Methods for Providing Features in a Friction Display
TL;DR: A touch-enabled device can simulate one or more features in a touch area, such as changes in texture and/or simulation of boundaries, obstacles, or other discontinuities in the touch surface that can be perceived through use of an object in contact with the surface as discussed by the authors.
Patent
Systems and methods for a texture engine
TL;DR: In this paper, the authors describe a texture engine that can determine a haptic effect comprising a texture, and transmit the haptic signal associated with the texture to an actuator in communication with the processor.
Patent
Systems and methods for using textures in graphical user interface widgets
TL;DR: In this article, the authors describe a system that includes an actuator configured to receive a haptic signal and output haptic effects based at least in part on the haptic signals to simulate a texture, and a touch-sensitive interface configured to detect a user interaction and output interface signals.
Patent
Systems and methods for interfaces featuring surface-based haptic effects
TL;DR: In this paper, surface-based haptic effects are described for interfaces with touch sensors and interfaces with a processor that select a haptic effect based on the position of the touch and recognizing an input gesture provided by a touch and content displayed in a graphical user interface at a location mapped to a position in the touch area at or near the touch.
References
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Patent
Ultrasonic motor having integrated electrodes and manufacturing method of the same
TL;DR: In this paper, a flexible aluminum-based connective arrangement is proposed for stators, which consists of first and second piezoelectric elements, upper and lower aluminum based metal blocks.
PatentDOI
Motor device utilizing ultrasonic oscillation
TL;DR: In this article, a motor device utilizing ultrasonic oscillation is described, which comprises an elastic body and one or more piezoelectric, electrostriction or magnetostriction elements assembled in or on the elastic body, and a movable body movable in a fixed direction.
Patent
Oscillatory wave motor
TL;DR: In this paper, an oscillatory wave motor is composed of a ring-formed oscillating unit, an oscillation-proof member and a frictional member to come in close contact with each other between them with the close contact means of adhesives or the like.
Patent
Drive controller for ultrasonic motor
TL;DR: In this article, the authors proposed a method to escape an ultrasonic motor rapidly from a vibration deviating state and to recover it to a normal vibrating state by altering the applied pressure of a rotor by an actuator.
Patent
Ultrasonic motor with a vibrator having recesses
TL;DR: In this paper, an ultrasonic motor has a circular vibrator and a mover which is pressed into contact with the vibrator, and a ring-like recess is provided on another elastic member which constitutes the mover.