The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2011
Filed:
Sep. 01, 2006
David Mak-fan, Waterloo, CA;
Tom Nagy, Waterloo, CA;
David Mak-Fan, Waterloo, CA;
Tom Nagy, Waterloo, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
Method an arrangement for facilitating the use of a trackball on a wireless handheld communication device as a navigation tool and a selection tool of designated information presented on a display screen of the device. A wireless handheld communication device is provided that has at a front face thereof a display screen located above a keyboard suitable for accommodating textual input. A depressible trackball functions as a navigation tool for moving a cursor about on the display screen when rolled and as a selection tool when sufficiently depressed. Cursor movement is affected by digitally engaging the trackball and maintaining the trackball in a navigation zone depth within the device. Selection of designated information is affected by depressing the trackball a predefined amount. The wireless handheld communication device is configured so that no cursor movement is affected by rolling movement of the trackball when in the selection zone.