Patent ID: 8279053

Claim:
A vibrotactile mobile device which supplies a tactile sense to a user by executing a program, comprising: a screen which visually displays an execution status of the program; a plurality of vibration modules which vibrate with a multi-level vibration strength to correspond to the information shown on the screen; a vibration contact plate which is disposed outside the vibration modules and delivers the vibration generated by the vibration modules to the user; a plurality of vibration isolating links which are connected to the vibration modules between the screen and the vibration modules and isolate the vibration generated by the vibration modules; and a vibration controller which (a) recognizes the position of a signal input through the screen to calculate a target vibration position on the vibration contact plate corresponding to the position of the signal, (b) calculates distances between the target vibration position on the vibration contact plate and the plurality of vibration modules, and (c) controls a supply of power distributed to the vibration modules based on the calculated distances.