Latency and operability in haptic displays

Recently, there has been growing demand for distributed multimedia applications that use the Internet. In particular, the performance of cooperative tasks using haptic displays within three dimensional virtual spaces structured by computer graphics (hereafter, CG) is drawing attention. Because the user can touch a CG object within three dimensional virtual space using haptic displays, it is expected that they will greatly increase work efficiency. In this paper, the system using haptic displays was set up so that movements of a teacher were taught to students in a remote location. In particular, the aforementioned system was achieved via remote tasks using Internet-connected haptic displays, and the impact on user operability by network fluctuations (particularly network time-delay) was considered.