Drive controlling apparatus, electronic device and drive controlling method

摘要

A drive controlling apparatus that drives a vibrating element of an electronic device including a display panel, a touch panel disposed on a display surface side of the display panel and the vibrating element generating a vibration in a manipulation input surface of the touch panel, includes a drive controlling part being 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, the drive controlling part being configured to drive the vibrating element so that an intensity of the natural vibration varies in accordance with a position and a temporal change degree of the position of a manipulation input performed onto the manipulation input surface.

主权项

1. A drive controlling apparatus that drives a vibrating element of an electronic device including a display part, a top panel disposed on a display surface side of the display part and having a manipulation input surface, a position detector detecting a position of a manipulation input performed on the manipulation input surface and the vibrating element generating a vibration in the manipulation input surface, comprising:
an amplitude modulator configured to modulate an amplitude of a wave signal in an ultrasound-frequency-band in accordance with amplitude data and to output the modulated wave signal as a driving signal to the vibrating element, the driving signal being used for driving the vibrating element, the wave signal generating a natural vibration in the ultrasound-frequency-band in the manipulation input surface, the amplitude data representing an amplitude of the driving signal; and a drive controlling part configured to output the amplitude data used for modulating the amplitude of the wave signal to the amplitude modulator and to drive the vibrating element in response to the amplitude data, the drive controlling part controlling the amplitude data so as to vary an intensity of the natural vibration in accordance with the position of the manipulation input performed onto the manipulation input surface and a temporal change degree of the position.