Haptic generator device and applied apparatus including the same

A haptic generator device comprising:

• a haptic element, the haptic element comprising:
• a stator part having a stopper;
• a rotor part configured to rotate in relation to the stator part, the rotor part having a protrusion;
• a magnet provided on one of the rotor part and the stator part, the magnet having a plurality of poles;
• and
• a coil provided on the other of the rotor part and the stator part, the coil configured to interact with the magnet to generate a rotational force,
• wherein the rotor part performs an oscillating rotational movement within a 360-degree range,
• while the rotor part rotates in a first direction, a rotational movement of the rotor part is forcibly halted or is rotated in a second direction opposite to the first direction to generate a rotational inertia vibration before the protrusion of the rotor part collides with the stopper of the stator part;
• the rotor part is configured to generate an impact vibration and a rotational inertia vibration different from each other while rotating within a particular rotation angle range,
• when the magnet has an m number of poles, the rotor part rotates within rotation angles occupied by an (m−1) number of poles to generate the rotational inertia vibration, where m is a natural number greater than or equal to 3, and
• when generating the rotational inertia vibration, the rotor part undergoes an oscillating rotational movement within rotation angles occupied by two adjacent poles and undergoes an oscillating rotational movement across an N pole and an S pole adjacent to each other;
• and
• a driving signal generator configured to generate a driving signal, the driving signal configured to:
• cause a first electric current to be applied to the haptic element, the first electrical current configured to cause the rotor part to rotate in the first direction;
• and
• cause a second electric current to be applied to the haptic element, said second electrical current configured to forcibly halt the rotor part or cause the rotor part to rotate in the second direction before the protrusion of the rotor part collides with the stopper of the stator part to generate the rotational inertia vibration.

An applied apparatus comprising:

• a haptic element comprising:
• a stator part having a stopper;
• a rotor part configured to rotate in relation to the stator part, the rotor part having a protrusion;
• a magnet provided on one of the rotor part and the stator part, the magnet having a plurality of poles;
• and
• a coil provided on the other of the rotor part and the stator part, the coil configured to interact with the magnet to generate a rotational force,
• the rotor part performs an oscillating rotational movement within a 360-degree range,
• while the rotor part rotates in a first direction, a rotational movement of the rotor part is forcibly halted or is rotated in a second direction opposite to the first direction to generate a rotational inertia vibration before the protrusion of the rotor part collides with the stopper of the stator part, and
• when the magnet has an m number of poles, the rotor part rotates within rotation angles occupied by an (m−1) number of poles to generate the rotational inertia vibration, where m is a natural number greater than or equal to 3;
• a driving circuit configured to provide an electric current to the haptic element;
• and
• a driving signal generator configured to generate a driving signal, the driving signal configured to:
• cause the driving circuit to apply a first current to the haptic element to cause the rotor part to rotate in the first direction;
• and
• before the protrusion of the rotor part collides with the stopper of the stator part, cause the driving circuit to apply a second current to the haptic element to cause the rotor part to forcibly halt or rotate the rotor in the second direction to generate the rotational inertia vibration.