Input unit for a computer
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United States of America Patent
Stats
-
Mar 10, 1998
Grant Date -
N/A
app pub date -
Jun 30, 1995
filing date -
Jun 30, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An input unit for a computer has a housing with a transparent plate at one side thereof over which an input element is movable. The housing contains a camera which identifies the position of the input element and converts this position into a position output signal. An evaluation unit converts the position output signal into control signals for the computer according to a mouse protocol. The input unit can thus be used to control the computer in a manner which mimics the control of a computer using a conventional mouse, but avoids the disadvantages associated with conventional mouse control. The input element may be an element specifically dedicated for that purpose, or may be a tool which the user happens to have available, or may simply be the finger of a user.
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