Method and system for interaction between VR application and controller capable of changing length and center of gravity

An interaction system comprising:

• a controller including a first actuator configured to change a position of a mass and a processor configured to control an operation of the first actuator;
• and
• a content execution device configured to execute an application according to a control signal received from the controller and generate a feedback signal to transmit the generated feedback signal to the controller when a virtual object change event occurs during the application execution,
• wherein the processor of the controller controls the first actuator when the feedback signal is received to move the mass and move a center of gravity,
• wherein the controller includes a moving part coupled movably to a housing and a second actuator moving the moving part, and the processor controls the second actuator to move the moving part when the feedback signal is received, and
• wherein the second actuator includes a motor provided in the housing and a screw of which one end is coupled to the motor, and
• the screw is screwed to a fixing nut provided in the moving part.

An interaction system comprising:

• a controller including a first actuator configured to change a position of a mass and a processor configured to control an operation of the first actuator;
• and
• a content execution device configured to execute an application according to a control signal received from the controller and generate a feedback signal to transmit the generated feedback signal to the controller when a virtual object change event occurs during the application execution,
• wherein the processor of the controller controls the first actuator when the feedback signal is received to move the mass and move a center of gravity,
• wherein the controller includes a moving part coupled movably to a housing and a second actuator moving the moving part, and the processor controls the second actuator to move the moving part when the feedback signal is received, and
• wherein the second actuator includes an actuator housing fixed to the housing, a base provided inside the actuator housing and having various conductive lines, a plurality of piezoelectric bimorphs electrically connected with the plurality of conductive lines while a lower end is fixed to the base, and a moving rod provided to pass through the actuator housing while one end is coupled to the moving part and provided on the plurality of piezoelectric bimorphs, and
• while at least one of the plurality of piezoelectric bimorphs is bending-deformed and moves the moving rod, the moving part is moved.

An interaction system comprising:

• a controller including a first actuator configured to change a position of a mass and a processor configured to control an operation of the first actuator;
• and
• a content execution device configured to execute an application according to a control signal received from the controller and generate a feedback signal to transmit the generated feedback signal to the controller when a virtual object change event occurs during the application execution,
• wherein the processor of the controller controls the first actuator when the feedback signal is received to move the mass and move a center of gravity, and
• wherein the controller includes a guide member to guide the movement of the mass, and
• the first actuator is a stopper actuator which is provided in the guide member to selectively block the movement of the mass.