Anti-rotation mechanism for direct manipulation position input controller for computer
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United States of America Patent
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Feb 13, 1996
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N/A
app pub date -
Sep 13, 1993
filing date -
Sep 13, 1993
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Abstract
An apparatus for inputting and controlling the position of a pointer on a computer screen without permitting any rotation of the apparatus relative to the marker is described. The apparatus comprises a pantagraph device, namely a plate, connect by two arms to a gripable element, and by a separate two arms to a housing, the apparatus being coupled to a position sensing system such as a mouse ball or optical sensing system. This apparatus can be used for easily and accurately controlling a pointer for painting programs and the like.
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