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:
Jul. 13, 2004
Filed:
Dec. 20, 2001
Esa-Sakari Määttä, Tampere, FI;
Marko Eromäki, Tampere, FI;
Nokia Corporation, Espoo, FI;
Abstract
The invention discloses a low profile input device for moving a cursor, scrolling a page, or selecting a function on a display of a handheld device. In an embodiment of the invention, a planar joystick ( ) for use moving a cursor on the display of a handheld device comprises a movable sliding button having a first magnet M embedded therein. The button is slid by a user's finger over a second magnet M , an action that distorts the magnetic flux which is detected by a plurality of magnetic flux sensors . The direction and magnitude of the cursor movement on the display correspond to the change in flux caused by the movement of the sliding button.