US 11,740,714 B2
Mechanical deflection compensation for orthogonal electrodes
Joel C. Kent, Fremont, CA (US); and Selina Li, Sunnyvale, CA (US)
Assigned to Elo Touch Solutions, Inc., Knoxville, TN (US)
Filed by Elo Touch Solutions, Inc., Milpitas, CA (US)
Filed on Feb. 2, 2022, as Appl. No. 17/591,405.
Application 17/591,405 is a continuation of application No. 16/908,370, filed on Jun. 22, 2020, granted, now 11,243,622.
Application 16/908,370 is a continuation of application No. 15/976,336, filed on May 10, 2018, granted, now 10,691,269.
Application 15/976,336 is a continuation of application No. 13/013,596, filed on Jan. 25, 2011, granted, now 10,001,883.
Claims priority of provisional application 61/426,344, filed on Dec. 22, 2010.
Claims priority of provisional application 61/426,421, filed on Dec. 22, 2010.
Prior Publication US 2022/0155887 A1, May 19, 2022
Int. Cl. G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H03K 17/96 (2006.01)
CPC G06F 3/03547 (2013.01) [G06F 3/044 (2013.01); G06F 3/0418 (2013.01); G06F 3/0443 (2019.05); G06F 3/0447 (2019.05); H03K 17/9622 (2013.01); H03K 2217/960755 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining a location of contact on a touch sensitive device, the method comprising:
measuring contact capacitances of a plurality of electrodes in a vicinity of a contact on the touch sensitive device, wherein the touch sensitive device comprises a first electrode layer orthogonal to a second electrode layer;
determining a mechanical deflection capacitance of a remote electrode positioned a distance away from an electrode of the plurality of electrodes, wherein the remote electrode and the plurality of electrodes correspond to the first electrode layer;
determining a plurality of mechanical deflection capacitances of the plurality of electrodes based at least on the mechanical deflection capacitance;
adjusting the contact capacitances based at least on the plurality of mechanical deflection capacitances; and
determining the location of the contact based on the adjustment.