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AssigneeFujitsu Limited
InventorsKIYOSHI TANINAKA, Yuichi Kamata, Yasuhiro Endo, Akihiko Yabuki
Estimating the term…
A drive control apparatus includes a storage configured to store waveform data representing a drive signal constituted of a sine wave satisfying a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers), the drive signal applying vibration (m/2)×Q times (Q is a natural number other than 0) to an actuator, the f0 representing a resonant frequency of the actuator, and a drive controller configured to read the waveform data stored in the storage, and output the drive signal corresponding to the read waveform data to the actuator.
A drive control apparatus comprising:
An electronic apparatus comprising:
A non-transitory computer-readable recording medium storing a program, wherein when processed by processors, causes a computer to perform processes, the processes comprising:
A drive control method performed by a computer, the drive control method comprising:
Dependencies are inferred from the claim text.
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Input arrangements or combined input and output arrangements for interaction between user and computer: input arrangements with force or tactile…
Operating with electromagnetism: using vibrating magnet, armature or coil system
Operating with piezoelectric effect or with electrostriction: using a piezoelectric bender, e.g. bimorph
Arrangements for converting the position or the displacement of a member into a coded form: digitisers, e.g. for touch screens or touch pads,…
Term end not estimated
The disclosures discussed herein relate to a drive control apparatus, an electronic apparatus, and a drive control method.
Related art electronic apparatuses include a flat touch panel as an input unit. Such a touch panel is configured to receive contact to the touch panel as input operations but does not provide tactile senses according to different input operations. The related art touch panel has thus been desired to incorporate a device capable of providing the tactile senses according to the different input operations.
Thus, in order to provide tactile senses according to the different input operations, attempts have been made to utilize vibrations generated by an LRA (linear resonant actuator). Further, Japanese Laid-open Patent Publication No. 2012-20284 (Patent Document 1) proposes an example of a technology for driving the LRA, and a dedicated IC (an integrated circuit) for controlling a tactile presenting device.
FIG. 1A is a diagram illustrating an outline of a first embodiment;
FIG. 1B is a diagram illustrating an outline of a first embodiment;
FIG. 2 is a diagram illustrating sensitivity of a sensory organ of humans;
In the following, preferred embodiments are described with reference to the accompanying drawings.
First, a description is given of an outline of a first embodiment with reference to FIGS. 1A and 1B. FIGS. 1A and 1B are diagrams illustrating an outline of the first embodiment.
FIG. 1A is a diagram illustrating a waveform 11 of acceleration of vibrations generated by pressing a button 2 with a human finger to which an accelerometer 1 is attached. FIG. 1B is a diagram illustrating a waveform 12 of acceleration of vibrations generated by touching a touch panel 3 with a human finger to which an LRA (linear resonant actuator) is attached. The button 2 illustrated in FIG. 1 may, for example, be a metal dome button. Note that the button 2 and the touch panel 3 are attached to an electronic apparatus.