Keypads for oblique viewing
作者： Gerry J. Elman , Victor G. Feller
DOI:
关键词:
摘要: A keypad is provided for optimal viewing from an off-axis vantage point, i.e., that not perpendicular to the plane of keyp a device such as wireless phone (600) clipped (620) user's belt or remote control pointed at controlled device. At least triad keys (6101, 6104, 6107, 6111, 6114) has numerical other visible indicia on planar, slightly convex surfac oblique plane. The can be operated conveniently without having shift viewpoint move
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