COORDINATE INPUT DEVICE
作者： Shirai Keitaro
DOI:
关键词: Substrate (printing) 、 Contact area 、 Input device 、 Computer graphics (images) 、 Surface (mathematics) 、 Square (algebra) 、 Position (vector) 、 Cursor (databases) 、 Point (geometry) 、 Computer science
摘要: PURPOSE:To facilitate the cursor operations by turning a indicating coordinate input position in direction of pen contact area against reference point on substrate and moving at speed proportional to distance from said point. CONSTITUTION:A device contains tablet 10 serving as substrate, having with surface for coordinates, CRT 15 which displays cursor, etc. The has an approximately square 12 upper part 13 set center part. concentrical circles 14 are drawn centering used lines. When 11 touches 12, moves A displayed presently theta between lfrom 13.
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