Patent · US Active

Variably dimensioned capacitance sensor elements

US7688080B2 · kind B2 · utility

48Cited by

6References

30Claims

0Family size

Assignee

Synaptics Incorporated · US

Inventors

Mykola Golovchenko · Sunnyvale, US
Bob Lee Mackey · San Jose, US

Key dates

Filing date	Jul 17, 2006
Grant date	Mar 30, 2010
Priority date	—
Expiry date	Feb 23, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/24
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.