Patent attributes
Devices and related methods are disclosed herein that generally involve detecting and interpreting gestures made by a user to generate user input information for use by a digital data processing system. In one embodiment, a device includes first and second sensors that observe a workspace in which user gestures are performed. The device can be set to a keyboard input mode, a number pad input mode, or a mouse input mode based on the positioning of the user's hands. Subsequent gestures made by the user can be interpreted as keyboard inputs, mouse inputs, etc., using observed characteristics of the user's hands and various motion properties of the user's hands. These observed characteristics can also be used to implement a security protocol, for example by identifying authorized users by the anatomical properties of their hands or the behavioral properties exhibited by the user while gesturing.
