公开(公告)号：WO2013055282A2

公开(公告)日：2013-04-18

申请号：PCT/SE2012051073

申请日：2012-10-08

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WALLANDER MATS PETTER ,  JUHLIN PETER ,  JOHANSSON ANDREAS ,  WALL HENRIK ,  OHLSSON NICKLAS

IPC: G06F3/042

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/0421 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: Multi-touch sensitivity is enabled using a touch system that comprises a panel configured to conduct signals, e.g. by FTIR, from a plurality of incoupling points to a plurality of outcoupling points, thereby defining detection lines across the panel between pairs of incoupling and outcoupling points. A signal processor operates in a repeating sequence of iterations to obtain (50) a current signal value for each detection line, and generate (53, 53') a first interaction pattern and a second interaction pattern as a function of the current signal values, such that the first and second interaction patterns are reconstructed two-dimensional distributions of local interaction with the conducted signals across the surface portion, and represent changes in interaction on different time scales. Thereby, the movement of an object will affect how it is represented in each of the first and second interaction patterns. Touch detection may be improved by proper selection of the time scales and combined analysis (56) of the first and second interaction patterns.

Abstract translation: 使用包括被配置为传导信号的面板的触摸系统来启用多点触敏。 通过FTIR，从多个插入点到多个输出耦合点，由此限定跨耦合和输出耦合点对之间的面板上的检测线。 信号处理器以重复的迭代序列操作以获得（50）每个检测线的当前信号值，并且生成作为当前信号值的函数的第一交互模式和第二交互模式（53,53'）， 使得第一和第二相互作用模式是通过表面部分与传导信号的局部交互的重建二维分布，并且表示不同时间尺度上的交互的变化。 因此，对象的移动将影响如何在第一和第二交互模式中的每一个中表示它。 可以通过适当地选择第一和第二相互作用模式的时间尺度和组合分析（56）来改善触摸检测。

公开(公告)号：WO2013062471A3

公开(公告)日：2013-06-20

申请号：PCT/SE2012051142

申请日：2012-10-24

Applicant: FLATFROG LAB AB

Inventor： OHLSSON NICKLAS ,  JUHLIN PETER ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

CPC classification number: G06F3/042 ,  G06F2203/04109

Abstract: In a touch-sensitive apparatus, a panel conducts signals, e.g. light, on actual detection lines that extend across a surface portion of the panel between pairs of incoupling and outcoupling points. Objects touching the surface portion attenuate the transmitted signals. A data processor processes (40) an output signal from a detector coupled to the outcoupling points, to generate a set of data samples indicative of detected energy for the actual detection lines. The set of data samples is further processed (42) to generate a set of matched samples indicative of estimated detected energy for fictitious detection lines that extend across the surface portion in parallel groups at a plurality of different angles. The individual spacing between the fictitious detection lines in each group and the individual difference in angle between said groups are selected such that the set of matched samples transforms to Fourier coefficients arranged as data points on a pseudo-polar grid in a Fourier domain. The set of matched samples is processed (44) by tomographic reconstruction to generate a two-dimensional distribution of an interaction parameter within the surface portion.

Abstract translation: 在触敏装置中，面板传导信号，例如， 在实际的检测线上，这些实际的检测线在成对的入耦合点和出耦合点之间延伸穿过面板的表面部分。 接触表面部分的物体衰减传输的信号。 数据处理器处理（40）来自耦合到输出耦合点的检测器的输出信号，以产生指示实际检测线的检测能量的一组数据样本。 该数据样本组被进一步处理（42）以产生一组匹配的样本，该组匹配的样本指示针对虚拟检测线的估计检测能量，所述虚拟检测线在多个不同角度处以平行群组的表面部分延伸。 每个组中假想检测线之间的单独间距和所述组之间角度上的个体差异被选择为使得该组匹配样本变换成在傅立叶域中伪平面网格上布置为数据点的傅立叶系数。 通过层析重建处理（44）匹配样本集合以生成表面部分内的相互作用参数的二维分布。

公开(公告)号：WO2013095271A3

公开(公告)日：2013-10-24

申请号：PCT/SE2012051419

申请日：2012-12-18

Applicant: FLATFROG LAB AB

Inventor： WALLANDER MATS PETTER ,  JUHLIN PETER ,  KRUS MATTIAS

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0412 ,  G06F3/0418 ,  G06F2203/04109

Abstract: A device implements a data processing method for an optical FTIR-based touch system. The touch system defines detection lines across a surface portion of a panel by propagating light inside the panel from a plurality of incoupling points to a plurality of outcoupling points, such that each location on the surface portion is illuminated by incident light rays. At least one light detector is coupled to the outcoupling points to generate an output signal. The device obtains (50) signal values for the detection lines from the output signal and processes (52) the signal values to at least partly compensate for variations in the apparent interaction among the subset of detection lines that interact with an object on the surface portion. The device uses compensation data which is obtained to at least partly represent the variations that are caused by differences in incident power distribution among the subset of detection lines, the incident power distribution being a distribution of power among the incident light rays on the respective detection line with respect to a normal direction of the surface portion.

Abstract translation: 设备实现用于基于光学FTIR的触摸系统的数据处理方法。 触摸系统通过将面板内的光从多个输入耦合点传播到多个输出耦合点来限定面板表面部分上的检测线，使得表面部分上的每个位置被入射光线照射。 至少一个光检测器耦合到外耦合点以产生输出信号。 该设备从输出信号获得（50）检测线的信号值并且处理（52）信号值以至少部分地补偿与表面部分上的物体相互作用的检测线子集中的表观相互作用的变化 。 该装置使用所获得的补偿数据来至少部分地表示由检测线子集中的入射功率分布差异引起的变化，入射功率分布是入射光线在相应检测线上的功率分布 相对于表面部分的法线方向。

公开(公告)号：WO2012158105A2

公开(公告)日：2012-11-22

申请号：PCT/SE2012050509

申请日：2012-05-14

Applicant: FLATFROG LAB AB ,  CHRISTIANSSON TOMAS ,  JUHLIN PETER ,  WALLANDER MATS PETTER ,  WASSVIK OLA

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER ,  WALLANDER MATS PETTER ,  WASSVIK OLA

IPC: G06F3/042

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/0421 ,  G06F2203/04109

Abstract: A device for processing data from a touch sensitive apparatus is provided. The apparatus comprises a light transmitting panel with a touch surface and an opposed back surface; an illumination arrangement configured to introduce light into the panel for propagation by internal reflection between the touch surface and the back surface; a light detection arrangement configured to receive the light after propagation in the panel. A processor unit in the device operates to: obtain (S4) a monitored signal which is functionally dependent on transmitted light detected by the light detection arrangement; reconstruct (S5), based on the monitored signal,a two-dimensional attenuation field representing an attenuation of the transmitted light on the touch surface; calculate (S6) an expected monitored signal based on the reconstructed attenuation field;and compare (S7) the expected monitored signal with the monitored signal in order to determine a reduced performance of the apparatus.

Abstract translation: 提供了一种用于处理来自触敏设备的数据的设备。 该装置包括具有触摸表面和相对的后表面的透光面板; 照明装置，被配置为将光引入所述面板，以通过所述触摸表面和所述后表面之间的内部反射进行传播; 光检测装置，被配置为在面板中传播之后接收光。 设备中的处理器单元操作以：获得（S4）在功能上取决于由光检测装置检测到的透射光的监视信号; 基于所监视的信号重建（S5）二维衰减场，其表示所述触摸表面上的透射光的衰减; 基于重建的衰减场计算（S6）预期监视信号;以及将所预期的监视信号与所监视的信号进行比较（S7），以便确定设备性能的降低。

公开(公告)号：SE1050434A1

公开(公告)日：2011-11-04

申请号：SE1050434

申请日：2010-05-03

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER

IPC: G06F3/041 ,  G06T11/00

公开(公告)号：SE535005C2

公开(公告)日：2012-03-13

申请号：SE1050434

申请日：2010-05-03

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER

IPC: G06F3/041 ,  G06T11/00

公开(公告)号：CA2798176A1

公开(公告)日：2011-11-10

申请号：CA2798176

申请日：2011-04-28

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER

IPC: G06F3/042

Abstract: A touch-sensitive apparatus comprises a panel configured to conduct signals from a plurality of peripheral incoupling points to a plurality of peripheral outcoupling points. Actual detection lines are defined between pairs of incoupling and outcoupling points to extend across a surface portion of the panel. The signals may be in the form of light, and objects touching the surface portion may affect the light via frustrated total internal reflection (FTIR). A signal generator is coupled to the incoupling points to generate the signals, and a signal detector is coupled to the outcoupling points to generate an output signal. A data processor operates on the output signal to enable identification of touching objects. The output signal is processed (40) to generate a set of data samples, which are indicative of detected energy for at least a subset of the actual detection lines. The set of data samples is processed (42) to generate a set of matched samples, which are indicative of estimated detected energy for fictitious detection lines that have a location on the surface portion that matches a standard geometry for tomographic reconstruction. The set of matched samples is processed (44, 46) by tomographic reconstruction to generate data indicative of a distribution of an energy-related parameter within at least part of the surface portion.

公开(公告)号：EP2795437A4

公开(公告)日：2015-07-15

申请号：EP12860074

申请日：2012-12-18

Applicant: FLATFROG LAB AB

Inventor： WALLANDER MATS PETTER ,  JUHLIN PETER ,  KRUS MATTIAS

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0412 ,  G06F3/0418 ,  G06F2203/04109

Abstract: A device implements a data processing method for an optical FTIR-based touch system. The touch system defines detection lines across a surface portion of a panel by propagating light inside the panel from a plurality of incoupling points to a plurality of outcoupling points, such that each location on the surface portion is illuminated by incident light rays. At least one light detector is coupled to the outcoupling points to generate an output signal. The device obtains signal values for the detection lines from the output signal and processes the signal values to at least partly compensate for variations in the apparent interaction among the subset of detection lines that interact with an object on the surface portion.

公开(公告)号：EP2652582A4

公开(公告)日：2017-06-21

申请号：EP11849273

申请日：2011-12-13

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER ,  WALLANDER MATS PETTER

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/042 ,  G06F2203/04109

公开(公告)号：EP2771771A4

公开(公告)日：2015-06-17

申请号：EP12842940

申请日：2012-10-24

Applicant: FLATFROG LAB AB

Inventor： OHLSSON NICKLAS ,  JUHLIN PETER ,  CHRISTIANSSON TOMAS

IPC: G06F3/042 ,  G06F17/14 ,  G06T11/00

CPC classification number: G06F3/042 ,  G06F2203/04109