Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1995-01-03
1998-10-27
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
200 5R, G09G 303
Patent
active
058283641
ABSTRACT:
A case top for the housing of a mouse-type pointing device in a computer system, including two user actuable buttons on the case top, is made of a single piece of plastic. The case top includes securing arms which engage securing hooks extending from a case bottom of the housing, allowing the case top to be releasably fastened to the case bottom with a single screw. The buttons are attached to a main body of the case top by two spring arms concurrently formed with the case top. The two buttons actuate an integrated switch package having two momentary switches within the package. The integrated switch package consists of two pieces: a switch case, and a switch spring positioned therein. The switch package is mounted on a printed circuit board positioned within the interior of the housing of the pointing device. The switch case engages the case bottom of the housing to help secure both the switch package and the printed circuit board therein. User actuation of the switch package causes the switch spring to flex and make momentary electrical contact with contacts on the printed circuit board.
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Acosta Joseph J.
Hjerpe Richard
Microsoft Corporation
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