Handsteuer- bzw. Anwählvorrichtung mit einer Photodetektor-Anordnung
摘要
A cursor control device for personal computers and workstations includes a randomly speckled ball illuminated with diffuse lighting. An image of at least a portion of the illuminated area of the speckled ball is focused by an optical element such as a diffractive optical element onto a photosensitive array. Logic associated with the photosensitive array determines movement of the ball across the array, and translates that movement into conventional cursor control signals supplied to a host system.
申请公布号
DE4333992(B4)
申请公布日期
2006.04.13
申请号
DE19934333992
申请日期
1993.10.05
申请人
LOGITECH EUROPE S.A., ROMANEL-SUR-MORGES
发明人
BIDIVILLE, MARC;ARREGUIT, JAVIER;SHAIK, FLORIS ANDRE VAN;STEENIS, BERNARD;DROZ-DIT-BUSSET, FABIEN;BUCZEK, HARTHMUTH;BUSSIEN, ALDO