Capacitance sensing apparatus and method, and touch screen apparatus

US8976149B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8976149-B2
Application numberUS-201213607919-A
CountryUS
Kind codeB2
Filing dateSep 10, 2012
Priority dateJul 9, 2012
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

There is provided a capacitance sensing apparatus including: a driving circuit unit sequentially applying a driving signal to each of a plurality of first electrodes; a sensing circuit unit including a first integrating circuit detecting a first change in capacitance generated in a plurality of second electrodes by the driving signal and a second integrating circuit connected to another first electrode adjacent to the first electrode to which the driving signal is applied; and an operating unit connected to the sensing circuit unit to determine a touch input, wherein the second integrating circuit detects a second change in capacitance generated due to noise in the another first electrode, and the operating unit determines the touch input based on the first and second changes in capacitance.

First claim

Opening claim text (preview).

What is claimed is: 1. A capacitance sensing apparatus comprising: a driving circuit unit to sequentially apply a driving signal to each of a plurality of first electrodes including a first electrode; a sensing circuit unit including a first integrating circuit to detect a first change in capacitance generated in at least one of a plurality of second electrodes by the driving signal and a second integrating circuit connected to another first electrode of the plurality of first e…

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What does patent US8976149B2 cover?
There is provided a capacitance sensing apparatus including: a driving circuit unit sequentially applying a driving signal to each of a plurality of first electrodes; a sensing circuit unit including a first integrating circuit detecting a first change in capacitance generated in a plurality of second electrodes by the driving signal and a second integrating circuit connected to another first e…
Who is the assignee on this patent?
Kwon Yong Il, Hong Kyung Hee, Lee Sang Ho, and 2 more
What technology area does this patent fall under?
Primary CPC classification G06F3/0445. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).