In a pointing system for use in notifying an operator of a cursor position on a display without relying on a sense of sight, information is derived in relation to an interactive item from a plurality of positions which are adjacent to the cursor position. A tactile sense or an inner force sense is...http://www.google.co.uk/patents/US5714978?utm_source=gb-gplus-sharePatent US5714978 - Adjacent cursor system with tactile feedback for the blind
