# US 2013/0155003 A1 · Touch sensing apparatus and method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155003 A1 - Document ID: US20130155003A1 - Status: Published application - Kind: A1 - Application number: 13/401,362 - Filed: 2012-02-21 - Published: 2013-06-20 - Earliest claimed: 2011-12-14 - Assignees: Samsung Electro-Mechanics Co., Ltd. - Inventors: Yong Il KWON; Tah Joon PARK; Sang Ho LEE - Web page: https://patentgrep.com/patent/US20130155003A1 ## CPC - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract There are provided a touch sensing apparatus and a touch sensing method. The touch sensing apparatus includes: a plurality of first electrodes extending along a first axis; a plurality of second electrodes extending along a second axis intersecting the first axis and forming a plurality of intersection points by intersecting the plurality of first electrodes; and a controller integrated circuit determining a touch by detecting changes in capacitance generated in the plurality of intersection points, wherein the controller integrated circuit sets parameters for detecting the changes in capacitance differently according to positions of the plurality of intersection points. ## Claims ### Claim 1 A touch sensing apparatus, comprising: a plurality of first electrodes extending along a first axis; a plurality of second electrodes extending along a second axis intersecting the first axis and forming a plurality of intersection points by intersecting the plurality of first electrodes; and a controller integrated circuit determining a touch by detecting changes in capacitance generated in the plurality of intersection points, wherein the controller integrated circuit sets parameters for detecting the changes in capacitance differently according to positions of the plurality of intersection points. ### Claim 2 (depends on 1) The touch sensing apparatus of claim 1, wherein the controller integrated circuit includes: a sensing circuit unit including an integral circuit detecting the changes in capacitance; a signal converting unit generating a digital signal from the changes in capacitance detected by the sensing circuit unit; and a calculating unit determining the touch from the digital signal. ### Claim 3 (depends on 2) The touch sensing apparatus of claim 2, wherein the sensing circuit unit sets time intervals differently for the integral circuit to detect the changes in capacitance according to the positions of the plurality of intersection points. ### Claim 4 (depends on 3) The touch sensing apparatus of claim 3, wherein the sensing circuit unit increases the time intervals for detecting the changes in capacitance, as distances between the sensing circuit unit and the plurality of intersection points increase. ### Claim 5 (depends on 3) The touch sensing apparatus of claim 3, wherein the sensing circuit unit decreases the time intervals for detecting the changes in capacitance, as distances between the sensing circuit unit and the plurality of intersection points decrease. ### Claim 6 (depends on 2) The touch sensing apparatus of claim 2, wherein the signal converting unit sets times, at which the digital signal is generated from the changes in capacitance, differently according to the positions of the plurality of intersection points. ### Claim 7 (depends on 1) The touch sensing apparatus of claim 1, wherein the parameters are determined according to distances between the controller integrated circuit and the plurality of intersection points. ### Claim 8 (depends on 1) The touch sensing apparatus of claim 1, wherein the controller integrated circuit sets the parameters differently according to distances between the plurality of intersection points and at least one of a power circuit unit, a wireless communications circuit unit, an antenna unit, and a display device driving circuit unit. ### Claim 9 A touch sensing method, comprising: detecting changes in capacitance from a plurality of intersection points at which a plurality of electrodes intersect each other; converting the changes in capacitance into a digital signal; and determining a touch from the digital signal, wherein the detecting of the changes in capacitance includes setting parameters for detecting the changes in capacitance differently according to positions of the plurality of intersection points. ### Claim 10 (depends on 9) The touch sensing method of claim 9, wherein the detecting of the changes in capacitance includes generating an analog signal by integrating the changes in capacitance generated in the plurality of intersection points. ### Claim 11 (depends on 10) The touch sensing method of claim 10, wherein the detecting of the changes in capacitance includes setting time intervals for integrating the changes in capacitance differently according to the positions of the plurality of intersection points. ### Claim 12 (depends on 10) The touch sensing method of claim 10, wherein the detecting of the changes in capacitance includes setting time intervals for integrating the changes in capacitance differently according to electric noise signals inputted into the plurality of intersection points. ### Claim 13 (depends on 9) The touch sensing method of claim 9, wherein the converting of the changes in capacitance into the digital signal includes setting time intervala for coverting the changes in capacitance into the digital signal differently according to the positions of the plurality of intersection points.