Non-Visual Interfaces for Wearable Computers

INTRODUCTION As computing devices drop in size and rise in power/bandwidth, novel interface techniques are needed to keep pace. Interfaces which rely on screens and keyboards/handwriting are not always effective in mobile computing scenarios. Visual displays are wasted on eyes engaged in navigational tasks such as walking or driving. Similarly, keyboards and handwriting-based interfaces are difficult to use whilst the arms and hands are involved in realworld tasks (including posture control). Furthermore, these input techniques typically require a dedicated visual resource in the interaction loop.