DEVICES AND METHODS OF CONTROLLING MANIPULATION OF VIRTUAL OBJECTS ON A MULTI-CONTACT TACTILE SCREEN

• US 20110181546A1
• Filed: 01/26/2011
• Published: 07/28/2011
• Est. Priority Date: 02/23/2004
• Status: Abandoned Application

• Current Assignee: Stantum SAS
• Original Assignee: Stantum SAS
• Inventors: Largillier, Guillaume, JOGUET, Pascal
• Application Number:
  US13/013,976
• Publication Number:
  US 20110181546A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: G10H 1/055 by switches with variable impedance elements
• CPC Class Codes: G10H 1/34 Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
• CPC Class Codes: G10H 2220/096 using a touch screen
• CPC Class Codes: G10H 2220/241 on touchscreens, i.e. keys, frets, strings, tablature or staff displayed on a touchscreen display for note input purposes

Abstract

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.

Claims

1. A device configured to acquire tactile information, that can be placed over a display device, comprising:

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.

2. The device configured to acquire tactile information according to claim 1, wherein the transparent resistive layer is made of an electrically conducting resistive polymer.

3. The device configured to acquire tactile information according to claim 1, further comprising:

a scanning control unit configured to sequentially read out the tactile information from the rows and the columns of the conductive stripes of the transparent tactile matrix sensor with the measurement unit, and configured to store an image in a memory that represents a current state of the tactile information of the transparent tactile matrix sensor.

4. The device configured to acquire tactile information according to claim 3, wherein the transparent tactile matrix sensor includes a plurality of scanning zones that can be read out in parallel by the scanning control unit.