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AssigneeFujitsu Limited
InventorsKIYOSHI TANINAKA, Yuichi Kamata, Akinori Miyamoto, Yasuhiro Endo, Akihiko Yabuki
Estimating the term…
A drive control apparatus includes a storage storing first or second waveform data representing a drive signal, and a drive controller reading the first or the second waveform data, and output the drive signal to the actuator. The first waveform data applying vibration m×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (f1=(m/n)×f0 (m and n are mutually different natural numbers other than 0)) by a damping ratio of a vibration system to an actuator, and the second waveform data applying a vibration (m/2)×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers)) by the damping ratio to the actuator, where f0 represents a resonant frequency of 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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From the US filing history. Foreign family members aren’t listed.
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Of a single frequency, e.g. a sine-wave: with a feedback signal
Input arrangements or combined input and output arrangements for interaction between user and computer: input arrangements with force or tactile…
Piezoelectric or electrostrictive devices: with electrical input and mechanical output, e.g. functioning as actuators or vibrators
Methods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic
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 with the touch panel as input operations but does not provide users with tactile senses according to different input operations. The related art touch panel has thus been desired to incorporate a device capable of providing users with tactile senses according to different input operations.
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;
The following describes preferred embodiments with reference to the accompanying drawings.
First, an outline of a first embodiment is described 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.