How to Spell "c a t" in Thumbcode

To increase size and resolution, click on image.

For the thumbcode paper, visit http://boole.stanford.edu/thumbcode/.

Thumbcode is a device independent digital sign language. Device independence means that it is designed to work with a wide variety of devices. One early device we have experimented with is the Thumbcode Glove, shown below.

Vaughan Pratt
Stanford Wearable Computing Laboratory