Cursor positioning apparatus

Details Cursor positioning apparatus Cursor positioning apparatus

1996-09-30

2000-03-07

Hofsass, Jeffery A.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345156, 345157, 345168, G09G 508

Patent

active

060346701

ABSTRACT:
This is an improvement of a cursor positioning apparatus for a computer display device which includes an upper case, a center body and a lower case. It controls the movement and positioning of a cursor through the sliding movement of X-axis and Y-axis. There are also photo electric components for detecting the movement of photo grid and the displacement of the sliding bar in X-axis and Y-axis. The sensing signals are sent to a control circuit board and computer for further processing. The present invention may further have a curve-shaped slot in the upper case engaging with a square center pillar in the center body. The center pillar further engages with the lower case, and thus becomes an integral part of a keyboard. The present invention can be rotationally operated about a fixed axis point. A user can use hand and wrist to control the movement and positioning of the cursor on a display device without moving the arm. It is better ergonomically designed and structured than the conventional mouse.

REFERENCES:
patent: 4670743 (1987-06-01), Zemke
patent: 5086296 (1992-02-01), Clark
patent: 5327162 (1994-07-01), Soma
patent: 5488392 (1996-01-01), Harris
patent: 5704037 (1997-12-01), Chen

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