The Curtain device is a small window places within a wooden picture frame on the wall. Users open up the curtain by pulling apart wooden shutters over the display, thus indicating their presence. Users are represented by faces superimposed on images of objects. The images float around the display in a slow and random motion. Users can pull the string hanging from the device to select from a range of objects to represent them locally and on remote devices.
Source: Hindus, D., Mainwaring, S. D., Leduc, N., Hagström, A. E., and Bayley, O. 2001. Casablanca: Designing Social Communication Devices for the Home. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI’01). ACM Press, 325–332.
