Note-Taking on the ipod

A uni-stroke text input strategy for wheel input controls is proposed, such as the ones found on the series of ipod multimedia devices. The popularity of the ipod suggests that the wheel input paradigm is intuitive and usable. The proposed uni-strokes are based on circular motions that follow the contour of the wheel. Spatial mnemonics based on the shape of the alphabetic characters are used to minimise the time and effort learning the uni-strokes. Fuzzy set interference is used for robust character recognition of uni-stroke patterns. Early results indicate that text can be input at a rate of 10 words per minute with little practice.