Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1991-10-11
1995-08-29
Weldon, Ulysses
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345157, 74471X, G09G 302
Patent
active
054464811
ABSTRACT:
A hybrid mouse combining the usual x and y motion signals usually found in mice together with additional degrees of freedom, particularly a z-axis signal. The z-axis signal is generated by a roller whose turning motion is sensed by a shaft angle encoder, including a light chopper. Additional degrees of freedom may be provided by tilting the roller left and right to actuate switches. Actuation of each switch, together with pulse counts from the roller may be used to indicate pitch and roll. A yaw motion signal may be provided by use of dual position detectors. In another embodiment, pitch and roll may be indicated by a trackball mounted on the mouse housing with or without the z-axis roller.
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Gillick William G.
Rosenberg Ronald A.
Luu Matthew
Mouse Systems Corporation
Weldon Ulysses
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