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(A1)
申请公布日期
1994.05.19
申请号
DE19934333992
申请日期
1993.10.05
申请人
LOGITECH INC., FREMONT, CALIF.
发明人
BIDIVILLE, MARC, PULLY;ARREGUIT, JAVIER, PULLY;SHAIK, FLORIS ANDRE VAN, COLOMBIER;STEENIS, BERNARD, BEVAIX;DROZ-DIT-BUSSET, FABIEN, NEUCHATEL;BUCZEK, HARTHMUTH, MARIN-EPAGNIER;BUSSIEN, ALDO, ACLENS