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Bordeaux, France

A touch sensor including a tactile detection zone including a matrix array of conducting tracks constituting columns on a first insulating layer and rows on a second insulating layer, the first and second insulating layers being disposed opposite one another, and an array of conducting tracks configured to transfer electrical signals between the rows and columns of the matrix array and an interface connector for interfacing with a control system of the tactile sensor. The touch sensor further includes control circuits associated respectively with the rows and columns of the matrix array of conducting tracks, the array of conducting tracks extending between the control circuits and the interface connector.


A device configured to acquire tactile information including a transparent tactile matrix sensor having rows and columns of conductive stripes; and a scanning control unit, wherein the scanning control unit is configured to sequentially read out tactile information from the rows and the columns of the conductive stripes of the transparent tactile matrix sensor.


A device configured to acquire tactile information, that can be placed over a display device, including a transparent tactile matrix sensor having rows and columns of conductive stripes, the rows arranged next to each other to form a first layer, and the columns are arranged next to each other to form a second layer, and a transparent resistive layer arranged between the first layer of rows and the second layer of columns, a resistivity of the transparent resistive layer decreasing as a function of a pressure that is exerted onto the transparent resistive layer; and a measurement unit configured to measure an electric resistance for each overlap area of a column and a row that are separated from each other by the transparent resistive layer to acquire information on a pressure force at the respective overlap area to acquire the tactile information.


A device configured to acquire tactile information, including a transparent tactile matrix sensor; a display device; a measurement unit configured to simultaneously measure a first position of a first finger and a second position of a second finger that are placed on the transparent tactile matrix sensor; a graphical processing unit configured to generate a first and a second cursor that are associated with the first and second position, respectively; and a processor configured to execute an application that associates the first and second cursors with a graphical object that is displayed on the display device, to interact with the graphical object.


Patent
Stantum Inc., Bordeaux Polytechnic Institute, University of Bordeaux 1 and French National Center for Scientific Research | Date: 2011-09-15

A multicontact tactile sensor including an upper structure having first conductive tracks arranged in rows, a lower structure having second conductive tracks arranged in columns, spacers positioned between the upper structure and the lower structure; and an intermediate layer positioned on at least one of the first or the second conductive tracks, the intermediate layer made of a semiconductor metal oxide.

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