Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2006-10-31
2006-10-31
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S174000, C382S124000
Reexamination Certificate
active
07129926
ABSTRACT:
This invention relates to a navigation tool for connecting to a display device, comprising at least two sensor elements having known positions relative to each other, each sensor element being coupled to detector means for recording a change in a predetermined parametre and timing means for determining the time of change at each sensor element and calculating means for calculating the direction and speed of the recorded changes based on the relative positions of the sensor elements and the duration between the recorded changes.
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Mathiassen Stig
Mathiassen Svein
Idex Asa
Liang Regina
Rothwell Figg Ernst & Manbeck P.C.
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