Dual mode input device

Details Dual mode input device Dual mode input device

2007-01-23

2007-01-23

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S167000

Reexamination Certificate

active

10666606

ABSTRACT:
A dual mode input device, e.g. an optical mouse, is capable of performing data input function by moving the input device. Alternatively, the dual mode input device can also be an optical trackball. By turning the dual mode input device upside down, a trackball can be mounted to or exposed from the bottom surface to perform data input function by manipulating the trackball so that no movement of the input device is required.

REFERENCES:
patent: 5448023 (1995-09-01), Tooi
patent: 6580420 (2003-06-01), Wang
patent: 6762751 (2004-07-01), Kuan
patent: 2004/0095322 (2004-05-01), Sun et al.
patent: 2456225 (2001-10-01), None
patent: 2518155 (2002-10-01), None

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