Track ball structure

Details Track ball structure Track ball structure

2007-10-23

2007-10-23

Patel, Nitin I. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S156000

Reexamination Certificate

active

10784269

ABSTRACT:
A track ball structure for controlling movements of a cursor comprises a body, a capacity in the body, a track ball housed in the capacity having a portion exposed outside the capacity for controlling the movements of the cursor, and a plurality of sensors located in the capacity surrounding the track ball for detecting pressure directions. When the track ball is rollable continuously in a selected direction to compress the sensors so that the cursor is moved continuously in the selected direction. Thus, the track ball structure uses less part of a hand to control the track ball simply, conforms to human engineering, and moves the cursor to an objective position in a short time.

REFERENCES:
patent: 5287090 (1994-02-01), Grant
patent: 5920307 (1999-07-01), Blonder et al.
patent: 6097372 (2000-08-01), Suzuki
patent: 6172665 (2001-01-01), Bullister
patent: 7081883 (2006-07-01), Chen

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