Method of acquiring data from a matrix touch sensor, in particular for a touch screen

Abstract

A method of acquiring data of a matrix touch sensor including a matrix array of cells arranged according to a set of rows and columns, the method including: activating the cells arranged according to a column of at least one subset of columns of the matrix touch sensor; taking an overall measurement of an overall electrical characteristic on all the rows of at least one subset of rows of the matrix touch sensor; taking a sequential measurement of an electrical characteristic successively on each row of the at least one subset of rows, if the overall electrical characteristic has a value representative of a contact on at least one of the cells arranged according to the column; and repeating the overall measurement and sequential measurement after activating the cells arranged according to another column of the at least one subset of columns of the matrix touch sensor.

Dependencies are inferred from the claim text.