Computer graphics processing and selective visual display system – Display peripheral interface input device – Mechanical control
Patent
1998-03-26
2000-06-13
Brier, Jeffery
Computer graphics processing and selective visual display system
Display peripheral interface input device
Mechanical control
345157, G06F 3033
Patent
active
060755229
ABSTRACT:
A desktop compact cursor controller includes a platform having a protrusion thereon. A housing is coupled to the platform and has a structure configured to accept the protrusion, where the structure includes a first slidable member having a first brush configured to move in response to movement of the housing and a second slidable member having a second brush configured to move in response to movement of the housing. A printed circuit board is disposed within the housing and electrically coupled to the first brush and the second brush and configured to generate a first sensor signal in response to movement of the first brush on a first conductive strip and to generate a second sensor signal in response to movement of the second brush on a second conductive strip oriented perpendicular to the first conductive strip. A processor is coupled to the first conductive strip and the second conductive strip and configured to receive the first sensor signal and the second sensor signal to determine a position of the housing with respect to the platform. The processor then sends a position signal to a computer. Advantages of the invention include compact size and a high degree of accurate cursor control. Moreover, the invention provides good ergonomics that reduces fatigue.
REFERENCES:
patent: 4670743 (1987-06-01), Zemke
patent: 5400054 (1995-03-01), Dorst
patent: 5704037 (1997-12-01), Chen
patent: 5760764 (1998-06-01), Martinelli
patent: 5790108 (1998-08-01), Salcudean et al.
Altra Corporation
Brier Jeffery
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