US Patent 7688080 Variably dimensioned capacitance sensor elements

Patent 7688080 was granted and assigned to Synaptics on March, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Synaptics

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7688080

Date of Patent

March 30, 2010

Patent Application Number

11488248

Date Filed

July 17, 2006

Patent Primary Examiner

‌

Jeff Natalini

Patent abstract

A capacitance sensing apparatus includes capacitance sensor elements covered by a layer of material. The layer of material has an uneven effect on a measure of capacitance induced in the capacitance sensor elements when an object is in proximity to a sensing surface. For example, the layer of material may have a non-uniform thickness, or a property of the material may be non-uniform across the layer. The capacitance sensor elements are dimensioned to compensate for the effect.