Tactile sensation providing apparatus, tactile sensation providing system, control method, and non-transitory recording medium
AssigneeAlps Alpine Co., Ltd.
InventorsKunio Sato, Toshihiko Saito, Hajime Shikata
Life of this patent
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Abstract
A tactile sensation providing apparatus includes a linear resonant actuator; and circuitry configured to provide a pulse wave to the linear resonant actuator as a driving signal. The circuitry is further configured to, when a frequency of the pulse wave is smaller than a resonance frequency of the linear resonant actuator, set a pulse width of the pulse wave at a value smaller than a half of a reciprocal of the frequency of the pulse wave.
Claims13
A tactile sensation providing apparatus, comprising:
- a linear resonant actuator;
- and
- circuitry configured to provide a pulse wave to the linear resonant actuator as a driving signal,
- wherein
- the circuitry is further configured to, when a signal frequency (f1) of the pulse wave is smaller than a resonance frequency (f2) of the linear resonant actuator, set a pulse width (t) of the pulse wave at a value smaller than or equal to a half of a reciprocal of the resonance frequency (f2).
A tactile sensation providing system comprising:
- a linear resonant actuator;
- a detector generating an analog signal from environmental information;
- a converter converting the analog signal into a pulse wave that is a digital signal;
- and
- circuitry configured to provide the pulse wave to the linear resonant actuator as a driving signal,
- wherein
- the circuitry is further configured to, when a signal frequency (f1) of the pulse wave is smaller than a resonance frequency (f2) of the linear resonant actuator, set a pulse width (t) of the pulse wave at a value smaller or equal to a half of a reciprocal of the resonance frequency (f2).
A control method of controlling a tactile sensation providing apparatus having a linear resonant actuator, the control method comprising:
- providing, by circuitry, a pulse wave as a driving signal to the linear resonant actuator;
- and
- setting, by the circuitry, when a signal frequency (f1) of the pulse wave is smaller than a resonance frequency (f2) of the linear resonant actuator, a pulse width (t) of the pulse wave at a value smaller than or equal to a half of a reciprocal of the resonance frequency (f2).
Dependencies are inferred from the claim text.