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. 12, 2013
Filed:
Jun. 10, 2008
Marko Karhiniemi, Espoo, FI;
Marko Karhiniemi, Espoo, FI;
Nokia Corporation, Espoo, FI;
Abstract
A touch member () comprises a touch surface () having at least two sensor electrodes (-) that are separated from each other on the touch surface (). Each of the sensor electrodes (-) have a certain signal level threshold with relation to activate/lock the touch member (). The touch surface (,) is divided into a first area and a second area each comprising at least one of the sensor electrodes (-). Upon touching the touch member () in an unlocked state, the at least two electrodes (-) are arranged to measure periodically a signal level received from each of the electrodes (-) to indicate a touch location, report periodically the touch location with respect to the first area of the touch surface (), and report the measured signal level of each of the electrodes (-) in the second area of the touch surface (). The controller () sends an instruction to select an operation state of the touch member () based on calculated touch location information of the reported touch location and compared signal level information of the reported measured signal level.