ELECTRONIC DEVICE

1 . An electronic device comprising:

a display section for displaying an input operation area;

a panel to be touched by a user;

a vibrating section for vibrating the panel; and

a vibration control section for controlling the vibrating section so as to intermittently generate unit vibrations, each of which is composed of a plurality of iterations of a vibration of a predetermined frequency,

wherein the vibration control section changes a cycle on which the unit vibrations are intermittently generated based on a touch position of the user on the panel.

2 . The electronic device according to claim 1 , wherein the unit vibration includes a vibration of a resonance frequency of the panel.

3 . The electronic device according to claim 2 , wherein the unit vibration includes a vibration of the resonance frequency even if the cycle on which the unit vibrations are intermittently generated changes.

4 . The electronic device according to claim 1 , wherein the cycle on which the unit vibrations are intermittently generated is longer than a cycle of a plurality of vibrations of the unit vibration.

5 . The electronic device according to claim 1 , wherein:

the vibration control section vibrates the vibrating section when the touch position of the user is inside the input operation area; and

the vibration control section does not vibrate the vibrating section when the touch position of the user is outside the input operation area.

6 . The electronic device according to claim 1 , wherein the vibration control section changes the cycle on which the unit vibrations are intermittently generated when the touch position of the user continuously changes from inside to outside the input operation area.

7 . The electronic device according to claim 1 , wherein the vibration control section changes the cycle on which the unit vibrations are intermittently generated when the touch position of the user continuously changes from outside to inside the input operation area.

8 . The electronic device according to claim 1 , wherein the frequency of the unit vibration is 200 to 300 Hz.

9 . The electronic device according to claim 1 , wherein the unit vibration is composed of vibrations of a single predetermined frequency.

10 . The electronic device according to claim 1 , wherein the unit vibration is composed of a combination of vibrations of a plurality of different predetermined frequencies.

11 . The electronic device according to claim 10 , wherein the vibrations of the plurality of different predetermined frequencies have different amplitudes.

12 . The electronic device according to claim 1 , further comprising a selection section for selecting a particular frequency from among a plurality of different predetermined frequencies,

wherein the vibration control section controls the vibrating section so as to intermittently generate unit vibrations, each of which is composed of vibrations of the frequency selected by the selection section.

13 . The electronic device according to claim 12 , wherein the selection section changes the frequency to be selected based on the touch position of the user on the panel.

14 . A program for instructing an electronic device to perform an operation of vibrating a panel to be touched by a user, the program instructing the electronic device to perform the steps of:

controlling a vibrating section for vibrating the panel so as to intermittently generate unit vibrations, each of which is composed of a plurality of iterations of a vibration of a predetermined frequency; and

changing the cycle on which the unit vibrations are intermittently generated based on a touch position of the user on the panel.