Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1991-11-13
1994-03-29
Brier, Jeffery
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345164, 345166, G09G 500
Patent
active
052989186
ABSTRACT:
An electric circuit is to be incorporated in a pointing device (such as a computer mouse) which is used in combination with a data processing system (such as a computer) so as to reduce the energy consumption of the pointing device without affecting the original functions and efficiency thereof and thus permit the pointing device to fit into a system wherein electric consumption is of vital importance. The electric circuit includes a timing control circuit and a noise-suppressing sampling circuit which controls the operation of the energy consuming elements of the pointing device according to the movement of the pointing device. The noise-suppressing circuit can distinguish movement signals from noise signals, thus suppressing the interference due to noise and further reducing the energy consumed by the pointing device.
REFERENCES:
patent: 4886941 (1989-12-01), Davis et al.
patent: 4959805 (1990-09-01), Ohouchi et al.
patent: 5027109 (1991-06-01), Donovan et al.
patent: 5153571 (1992-10-01), Takahashi
Chi-Chun Chang
Jui-Chiang Tai
Jyn-Guo Hwang
Yen-Chen Chiu
Yu-Kun Wu
Brier Jeffery
Morrison Thomas R.
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