Fujitsu Corporation

D + M Holdings Inc.

Yasuhiro Endo

Yuichi Kamata

Kiyoshi Taninaka

Akinori Miyamoto

Akihiko Yabuki

Sachihiro Youoku

Ichiro Honjo

Kazuhiro Onizuka

Yasuhiro Kiyohara

Shunji Goto

Shinichi Wakana

Toshiaki Funakubo

Tatsuya Suzuki

Noriyasu Vontin

Yu Nakayama

Yuichi Kouno

Koji Yoshimoto

A drive control device being configured to provide a signal to an electronic device, the electronic device including a top panel having an operation surface, and a position detection circuit configured to detect a position of an operational input performed on the operation surface, and a vibrating element configured to generate vibration in the operation surface, the drive control device comprising: processor circuitry configured to execute a drive control processing that includes driving the vibrating element of the electronic device with a drive signal, the drive signal being configured to cause the vibrating element to generate natural vibration in the operation surface and being obtained by modulating a waveform signal of a first frequency in an ultrasonic band with a modulation signal of a second frequency having a difference from the first frequency, the difference being able to be sensed by a tactile receptor of a human.

Drive control device, electronic device, and drive control method

An electronic device includes a top panel configured to have an operation surface; a detection circuit configured to detect a position of an operation input on the operation surface; a vibrating circuit configured to be attached to the top panel to generate vibration on the operation surface; a control circuit configured to drive the vibrating circuit by a driving signal for generating natural vibration of an ultrasonic wave band on the operation surface, in which the driving of the vibrating circuit is performed such that an intensity of the natural vibration changes in accordance with the position of the operation input to the operation surface and a temporal change degree of the position; and a damping member configured to abut against a position that corresponds to a node of a standing wave generated by the natural vibration on a surface opposite to the operation surface of the top panel.

Electronic device

A drive controller includes a pulse generator configured to generate a pulse width modulation signal by modifying a period of at least one cycle of a plurality of cycles of the pulse width modulation signal for synchronizing the plurality of cycles of the pulse width modulation signal with one cycle of a drive signal, and a drive circuit configured to generate the drive signal based on the pulse width modulation signal generated by the pulse generator, and drive a vibration element coupled to a panel of an electronic device on a basis of the generated drive signal for generating vibration in an ultrasonic band on the panel.

Drive controller, electronic device, and drive control method

An electronic device includes: a top panel having a manipulation surface; a position detector configured to detect a position of a manipulation input performed on the manipulation surface; a vibrating element; and a drive controlling part configured to drive the vibrating element for generating a natural vibration in an ultrasound frequency band at the manipulation surface such that an intensity of the natural vibration is changed in accordance with the position of the manipulation input performed on the manipulation surface and a time change degree of the position, wherein a width of the vibrating element in a direction in which an amplitude of the natural vibration changes is set based on a ratio between a flexural rigidity of the top panel and a flexural rigidity of the top panel and the vibrating element at a portion where the vibrating element is attached to the top panel.

A game controller includes a housing; a top panel disposed on an opening portion of the housing and having a manipulation input surface; a position detector configured to detect a position of a manipulation input performed on the manipulation input surface; a vibrating element configured to generate a vibration in the manipulation input surface of the top panel; and a drive controlling part configured to drive the vibrating element by using a driving signal causing the vibrating element to generate a natural vibration in an ultrasound-frequency-band in the manipulation input surface.

Game controller

A drive controlling apparatus for driving a vibrating element of an electronic device, which includes, a coordinate detector that detects coordinates of a manipulation input performed on a manipulation input surface: a data storage part that stores basic waveform data representing a basic waveform representing a time change of amplitude of a driving signal for generating a natural vibration in the manipulation input surface, amplitude values arranged in a time series manner constituting the basic waveform; a waveform generating part that generates first waveform data representing a first waveform obtained by changing a basic frequency or the amplitude values; a waveform combining unit that generates first combined waveform data representing a first combined waveform by combining the basic waveform and the first waveform; and a drive controlling part that drives the vibrating element by changing the amplitude of the driving signal based on the first combined waveform data.

Drive controlling apparatus, electronic device, computer-readable recording medium, and drive controlling method

An electronic device can provide a satisfactory tactile sensation by Fourier-transforming a first image including brightness information, to obtain a first spatial-frequency distribution of the brightness, obtaining a second spatial-frequency distribution by multiplying the first spatial-frequency distribution by a coefficient depending on the first image size, obtaining a first time-frequency distribution based on the second spatial-frequency distribution and an input operation speed, filtering the first time-frequency distribution through a filter in which the transmittance for a frequency band detectable by Pacini's corpuscles is reduced, to obtain a second time-frequency distribution, converting the second time-frequency distribution into a third spatial-frequency distribution, based on the coefficient and the predetermined speed, inverse-Fourier-transforming the third spatial-frequency distribution, to obtain a second image, and driving a vibration element by a drive signal that has an amplitude according to brightness of the second image at the input position.

Electronic device and drive control method thereof

A simulation system includes a display section configured to display an image of an article, an operation terminal device which is moved by a user to operate a position of a pointer displayed on the display section, a first detecting section configured to detect a position and an orientation of the operation terminal device, a second detecting section configured to calculate first coordinates of the pointer based on the position and the orientation of the operation terminal device detected by the first detecting section, an offset section configured to obtain second coordinates derived by offsetting the first coordinates, and a first determining section configured to make a determination whether the article displayed on the display section has come in contact with a line connecting the first coordinates and the second coordinates.

Simulation system for operating position of a pointer

A drive controlling apparatus drives a vibrating element of an electronic device, the electronic device including a display part, a top panel having a manipulation surface, a coordinate detector configured to detect coordinates of a manipulation input. The drive controlling apparatus includes: a storage part configured to store image data for a scrollable image, to be displayed on the display part and including an input field, in association with position data that represents a position of the input field in the image and input data input in the input field; and a drive controlling part configured to drive the vibrating element according to a first pattern when the input field without the deficiency is being displayed on the display part and to drive the vibrating element according to a second pattern when the input field with the deficiency is not being displayed on the display part.

Apparatus and method for switching vibration at panel surface

An electronic device includes a top panel having a manipulation surface; a coordinate detector configured to detect coordinates of a manipulation input performed on the manipulation surface; a first vibrating element; and a drive controlling part configured to drive the first vibrating element by using a driving signal for generating a natural vibration in an ultrasound frequency band of the manipulation surface, the drive controlling part being configured to drive the vibrating element such that an intensity of the natural vibration changes in accordance with a position of the manipulation input and in accordance with a degree of time change of the position, wherein the top panel has a periodic structure whose thickness changes in a periodic manner in accordance with a period of a standing wave in a direction in which antinodes and nodes of the standing wave generated by the natural vibration are arrayed.

A drive control apparatus that drives a vibrating element of an electronic device including a touch panel and the vibrating element generating a vibration in a manipulation input surface of the touch panel, including, a drive controller being configured to drive the vibrating element by using a drive signal causing the vibrating element to generate a natural vibration in an ultrasound-frequency-band in the manipulation input surface, the drive controller being configured to drive the vibrating element so as to switch the natural vibration between a strong level and a weak level in accordance with a travel distance of a position of a manipulation input performed onto the manipulation input surface.

Drive control apparatus, electronic device and drive controlling method

An electronic device includes a display part; a top panel having a manipulation input surface; first vibrating elements configured to vibrate the manipulation input surface; second vibrating elements configured to vibrate the manipulation input surface; a memory configured to store section area data, in which coordinate points of section areas and identifiers of the first vibrating elements and the second vibrating elements are associated, the manipulation input surface being sectioned into the section areas; and a drive controlling part configured to drive at least one of the first vibrating elements and the second vibrating elements based on a position of a manipulation input performed on the manipulation input surface and the section area data by using a driving signal causing the at least one of the first vibrating elements and the second vibrating elements to generate a natural vibration in an ultrasound-frequency-band in the manipulation input surface.

Electronic device, drive controlling method, and drive controlling apparatus

An educational tactile sensation providing apparatus includes a top panel having a manipulation input surface; a position detector configured to detect a position of a manipulation input performed on the manipulation input surface; a display part disposed on a back face side of the top panel; a first vibrating element configured to generate a vibration in the manipulation input surface of the top panel; a memory configured to store tactile sensation data in which an image of a target tangible object is associated with positions in the image and amplitudes corresponding to tactile sensations of the target tangible object at the respective positions; and a drive controlling part configured to adjust an amplitude of a driving signal based on the position of the manipulation input performed on the manipulation input surface and a position among the positions in the image included in the tactile sensation data.

Educational tactile sensation providing apparatus and system

An electronic device that includes a drive controller being configured to drive a vibrating element by using a drive signal causing the vibrating element to generate a natural vibration in an ultrasound-frequency-band in a touch surface, the drive controller being configured to drive the vibrating element so as to switch the natural vibration between a strong level and a weak level in accordance with a travel distance of a position of a erformed onto the touch surface, a first memory configured to store first data representing a first passcode corresponding to a number of times the natural vibration is switched between the strong level and the weak level, and a first verification part configured to verify a number of times the drive controller switches the natural vibration between the strong level and the weak level with the first passcode when the touch is performed onto the touch surface.

Electronic device and verification method

A drive apparatus includes a memory to store waveform data representing a sinusoidal drive signal satisfying a frequency f=(m/n)&#xd7;q(t) (m and n: natural numbers, m&#x2260;n), to vibrate a vibration-generating device m times, where q(t) is a time characteristic of a resonance frequency of the vibration-generating device, or ((m/2)&#xd7;r) times (r: natural number&#x2260;0, m and n: positive odd, m&#x2260;n), the vibration-generating device having the resonance frequency varying depending on an acceleration amplitude in a range between first and second resonance frequencies including the rated value f; and a drive-processor to output the drive signal to the vibration-generating device. The q(t) is obtained when driving the vibration-generating device by a sinusoidal drive signal satisfying f=(m/n)&#xd7;f, to vibrate the vibration-generating device m times if m&#x2260;n, or ((m/2)&#xd7;r) times.

Growing community of inventors

Ebina, Japan

Yasuhiro Endo