Haptic Rendering Method by Using Non-grounded Low DOF Haptic Interface

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In this study, a tabletop haptic display system was developed. The system consists of a 1 DOF haptic interface, a flat panel display and a multi-touch overlay. A direct pointing and in-direct pointing environment were implemented by using the system. From the result of EMG variance etc in an experiment, by adding haptic sensation, the difference of the pointing environments did not contribute greatly to the performance . In addition, a pseudo-torque rendering method was developed in this study. By combining the pseudo-torque and the haptic interface, the users can feel greater torque than the torque that was generated by the stand alone haptic interface.