公开(公告)号：WO2013176615A3

公开(公告)日：2014-03-20

申请号：PCT/SE2013050585

申请日：2013-05-22

Applicant: FLATFROG LAB AB

Inventor： WALLANDER MATS PETTER ,  BERGSTROEM HAAKAN

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/042 ,  G06F2203/04109

Abstract: A touch-sensitive apparatus is configured to propagate energy inside a panel (1) so as to define a grid of transmission paths across a touch surface (4) of the panel (1). The apparatus comprises a first subset of components on a first end of the touch surface (4), and a second subset of components on a second end which is opposite to and parallel with the first end. The components include emitters and detectors, each emitter being operable for propagating a diverging energy beam (e.g. radiation) across the touch surface (4) inside the panel (1), and each detector being operable for detecting transmitted energy from at least two emitters. The components in at least one of the first and second subsets are systematically arranged in spatially separate groups along at least one of the first and second ends, so as to achieve a reduced spacing and/or an increased uniformity of the transmission paths along a center line between the first and second ends compared to an equidistant arrangement of all components.

Abstract translation: 触敏设备被配置为在面板（1）内传播能量，以便限定穿过面板（1）的触摸表面（4）的传输路径网格。 该装置包括在触摸表面（4）的第一端上的部件的第一子集，以及在与第一端相对并平行于第二端的部件的第二子集。 这些部件包括发射器和检测器，每个发射器可操作用于传播跨越面板（1）内的触摸表面（4）的发散能量束（例如辐射），并且每个检测器可操作用于检测来自至少两个发射器的透射能量。 第一和第二子集中的至少一个子集中的组件沿着第一和第二端中的至少一个被系统地布置在空间上分离的组中，以便实现沿着中心的传输路径的减小的间隔和/或增加的均匀性 第一和第二端之间的线与所有部件的等距布置相比较。

公开(公告)号：WO2013176613A3

公开(公告)日：2014-04-10

申请号：PCT/SE2013050583

申请日：2013-05-22

Applicant: FLATFROG LAB AB

Inventor： WALLANDER MATS PETTER

IPC: G06F3/042 ,  G06F3/03 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F2203/04109

Abstract: A touch-sensitive apparatus is configured to define a touch surface on a panel by propagating diverging energy beams (e.g. of radiation) across the touch surface inside the panel. Two rows (20A, 20B) of components (2, 3) of a first type that emits energy as a diverging beam and a second type that detects energy are functionally connected to the panel at opposite ends of the touch surface. The rows (20A, 20B) are defined by consecutive component blocks (B) that each contain only components (2, 3) of one type and are defined by type and number of included components. Each row (20A, 20B) comprises a respective sequence (S) of two component blocks (B) of different types and is defined by systematically repeating the sequence (S) along the respective opposite end. To achieve an improved spatial resolution of the touch-sensitive apparatus for a given number of components, at least one of the sequences (S) is selected to consist of two component blocks (B) with different number of components, and the sequences (S) are selected such that at least one component block (B) differs between the sequences (S).

Abstract translation: 触敏设备被配置为通过在面板内部的触摸表面传播发散的能量束（例如辐射）来限定面板上的触摸表面。 作为发散光束发射能量的第一类型的组件（2,3）和检测能量的第二类型的两排（20A，20B）在触摸表面的相对端处功能地连接到面板。 行（20A，20B）由连续的组件块（B）限定，每个组件块仅包含一种类型的组件（2,3），并且由所包含的组件的类型和数量来定义。 每行（20A，20B）包括不同类型的两个组件块（B）的相应序列（S），并且通过沿相应的相对端系统地重复序列（S）来定义。 为了实现对于给定数量的分量的触敏装置的改进的空间分辨率，选择序列（S）中的至少一个由具有不同数量的分量的两个分量块（B）组成，并且序列（S ）被选择为使得至少一个组分嵌段（B）在序列（S）之间不同。

公开(公告)号：WO2013165306A3

公开(公告)日：2014-04-03

申请号：PCT/SE2013050474

申请日：2013-04-29

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  OHLSSON NICKLAS ,  BJOERKLUND ANDREAS ,  WALLANDER MATS PETTER

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0416 ,  G06F3/0421 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: A signal processor implements a technique for detecting objects on a panel which transmits signals inside the panel such that the objects are allowed to interact with (e.g. attenuate) the signals by contact with a touch surface of the panel. The signal processor operates to define cells that have a given location on the touch surface and are associated with a respective set of intersecting paths for the signals across the touch surface. The signal processor operates to obtain (70) an output signal from a signal detection arrangement that measures a signal property for each path; process (71) the output signal to obtain an interaction value for each path; and determine (73-75) a touch status of a selected cell among the cells by analyzing the distribution of interaction values for at least part of the intersecting paths. The touch status indicates presence or absence of one of the objects in the selected cell.

Abstract translation: 信号处理器实现用于检测面板上的物体的技术，该面板传输面板内的信号，使得对象被允许通过与面板的触摸面接触而与信号相互作用（例如衰减）。 信号处理器操作以定义在触摸表面上具有给定位置的单元，并且与穿过触摸表面的信号的相应的相交路径集合相关联。 信号处理器操作以从信号检测装置获得（70）输出信号，该信号检测装置测量每个路径的信号特性; 处理（71）输出信号以获得每个路径的交互值; 以及通过分析所述相交路径的至少一部分的相互作用值的分布来确定（73-75）所述单元格中的所选单元格的触摸状态。 触摸状态指示所选单元格中的一个对象的存在或不存在。

公开(公告)号：WO2013089623A3

公开(公告)日：2013-09-12

申请号：PCT/SE2012051369

申请日：2012-12-10

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  OHLSSON NICKLAS ,  BJOERKLUND ANDREAS ,  WALLANDER MATS PETTER

IPC: G06F3/042

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

Abstract: A device implements a method of tracking objects on a touch surface of an FTIR based touch-sensitive apparatus. The method repeatedly operates to generate (50-52) an interaction pattern that indicates local changes in interaction on the touch surface, identify (53) apparent peaks in the interaction pattern, and update (54) existing movement trajectories based on the apparent peaks. An error suppression process (56) is executed at least intermittently in the method to process the apparent peaks and/or the existing movement trajectories to identify implicated trajectories with a potential tracking problem, define two or more movement propositions for each implicated trajectory, and cause an evaluation of the movement propositions in one or more subsequent repetitions of the method. The error suppression process improves tracking by postponing the final decision on how to track the object of the implicated trajectory until more information is available. It also allows the origin of the tracking problem to subside and/or the object to move away from an area on the touch surface that exhibits interferences.

Abstract translation: 设备实现了在基于FTIR的触敏设备的触摸表面上跟踪对象的方法。 该方法重复操作以产生（50-52）指示触摸表面上的交互的局部变化的交互模式，识别（53）交互模式中的明显峰值，并且基于表观峰值更新（54）现有移动轨迹。 在处理视在峰值和/或现有移动轨迹的方法中至少间歇地执行误差抑制处理（56）​​以识别具有潜在跟踪问题的牵连轨迹，为每个牵连轨迹定义两个或更多个运动命题，并且导致 在该方法的一个或多个后续重复中的运动命题的评估。 误差抑制过程通过延迟关于如何跟踪牵连轨迹的对象的最终决定来改进跟踪，直到有更多信息可用。 它还允许跟踪问题的起因使其脱离和/或物体远离显示干扰的触摸表面上的区域。

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：WO2013165305A3

公开(公告)日：2014-03-20

申请号：PCT/SE2013050473

申请日：2013-04-29

Applicant: FLATFROG LAB AB

Inventor： BJOERKLUND ANDREAS ,  CHRISTIANSSON TOMAS ,  WALLANDER MATS PETTER ,  OHLSSON NICKLAS

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0421 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: A signal processor implements a technique for detecting objects on a panel which transmits signals inside the panel such that the objects are allowed to interact with (e.g. attenuate) the signals by contact with a touch surface of the panel. The signal processor operates to define cells that have a given location on the touch surface and are associated with a respective set of intersecting paths for the signals across the touch surface. The signal processor operates to obtain (90) an output signal from a signal detection arrangement that measures a signal property for each path; process (91) the output signal to obtain an interaction value for each path; and generate (93-95') a cell value of a selected cell among the cells as either a robust measure of central tendency (e.g. a median) or a minimum/maximum among the interaction values for the intersecting paths. The signal processor determines (97) presence or absence of an object in the selected cell based on the cell value.

Abstract translation: 信号处理器实现用于检测面板上的物体的技术，该面板传输面板内的信号，使得对象被允许通过与面板的触摸面接触而与信号相互作用（例如衰减）。 信号处理器操作以定义在触摸表面上具有给定位置的单元，并且与穿过触摸表面的信号的相应的相交路径集合相关联。 信号处理器操作以获得（90）来自测量每个路径的信号特性的信号检测装置的输出信号; 处理（91）输出信号以获得每个路径的交互值; 并且将所述单元格中的所选单元格的单元格值（93-95'）作为所述相交路径的交互值中的中心趋势（例如中值）或最小/最大值的鲁棒测量值生成（93-95'）。 信号处理器基于单元值确定（97）所选单元中的对象的存在或不存在。

公开(公告)号：WO2013133757A3

公开(公告)日：2013-12-19

申请号：PCT/SE2013050198

申请日：2013-03-07

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  BJOERKLUND ANDREAS ,  WALLANDER MATS PETTER ,  OHLSSON NICKLAS

IPC: G06F3/042 ,  G06F17/14

CPC classification number: G06F3/046 ,  G06F3/0416 ,  G06F3/0421 ,  G06F2203/04109

Abstract: Touch sensitivity is enabled using a touch system that comprises a panel configured to conduct signals, e.g. by TIR, along detection lines across a touch surface. A signal processor operates to generate data samples indicative of transmitted signal energy on parallel detection lines at a number of different angles across the touch surface; process the data samples for generation of interpolated Fourier coefficients (f) at grid points in a regular grid in a Fourier domain; and operate a two-dimensional inverse Fourier transform on the interpolated Fourier coefficients (f) so as to generate an interaction pattern for the touch surface. The interpolated Fourier coefficients (f) are generated sequentially for individual groups of grid points. Each individual group comprises grid points that have equal distance to an origin in the regular grid, e.g. grid points that are mapped onto each other by one or more lines of symmetry (L1-L4) in the regular grid. The group-based processing may improve processing speed and/or reduce the need for data storage.

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触敏。 通过TIR，沿着穿过触摸表面的检测线。 信号处理器操作以在穿过触摸表面的多个不同角度上产生指示平行检测线上发送的信号能量的数据样本; 处理用于在傅里叶域中的规则网格中的网格点处生成内插傅里叶系数（f）的数据样本; 并对内插傅立叶系数（f）进行二维傅里叶逆变换，以生成触摸面的相互作用图案。 内插傅立叶系数（f）是针对各个网格点的顺序生成的。 每个单独的组包括与规则网格中的原点具有相等距离的网格点，例如。 在普通网格中通过一个或多个对称线（L1-L4）彼此映射的网格点。 基于组的处理可以提高处理速度和/或减少对数据存储的需要。

公开(公告)号：WO2013176614A2

公开(公告)日：2013-11-28

申请号：PCT/SE2013050584

申请日：2013-05-22

Applicant: FLATFROG LAB AB

Inventor： WALLANDER MATS PETTER

IPC: G06F3/042 ,  G06F3/03 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0416 ,  G06F2203/04109

Abstract: A touch-sensitive apparatus is configured to define a touch surface on a panel by propagating diverging energy beams across the touch surface inside the panel. Two rows (20A, 20B) of components (2, 3) of a first type that emits energy as a diverging beam and a second type that detects energy are functionally connected to the panel at opposite ends of the touch surface. The rows (20A, 20B) are defined by consecutive component blocks (B) that each contain only components (2, 3) of one type and are defined by type and number of included components. Each row (20A, 20B) is defined to have consecutive component blocks (B) of alternating type. To achieve an improved spatial resolution of the touch-sensitive apparatus for a given number of components, at least one of the rows (20A, 20B) is designed to include at least three different component blocks (B) which differ with respect to at least one of number and type.

Abstract translation: 触敏设备被配置为通过传播分散能量束穿过面板内的触摸表面来在面板上限定触摸表面。 作为发散光束发射能量的第一类型的组件（2,3）和检测能量的第二类型的两排（20A，20B）在触摸表面的相对端处功能地连接到面板。 行（20A，20B）由连续的组件块（B）限定，每个组件块仅包含一种类型的组件（2,3），并且由所包含的组件的类型和数量来定义。 每行（20A，20B）被定义为具有交替类型的连续分量块（B）。 为了实现针对给定数量的部件的触摸敏感设备的改进的空间分辨率，行（20A，20B）中的至少一个被设计为包括至少三个不同的组件块（B），其不同于至少 数字和类型之一。

公开(公告)号：WO2013115710A3

公开(公告)日：2013-10-31

申请号：PCT/SE2013050064

申请日：2013-01-29

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  BJOERKLUND ANDREAS ,  WALLANDER MATS PETTER ,  OHLSSON NICKLAS

IPC: G06F3/042

CPC classification number: G06F3/0418 ,  G06F3/042 ,  G06F3/0421 ,  G06F3/0428 ,  G06F3/047 ,  G06F2203/04109

Abstract: Touch sensitivity is enabled using a touch system that comprises a panel configured to conduct signals, e.g. by TIR, along detection lines across a touch surface. A signal processor operates in a sequence of repetitions to: generate (70, 71) data samples that represent detected signal energy on the actual detection lines; generate (72, 74) based on the data samples, an interpolated sinogram comprising interpolation samples that represent fictitious detection lines which have a desired location on the touch surface; and reconstruct (75) a signal interaction pattern for the touch surface based on the interpolated sinogram. The signal processor implements an error correction (73) to counteract the influence of a change in validity status for a data sample among the data samples, by identifying interpolation samples affected by the change in validity status, and by setting each identified interpolation sample to a value that maintains a relative signal transmission of the fictitious detection line from a former repetition.

Abstract translation: 使用包括配置为传导信号的面板的触摸系统启用触摸灵敏度，例如， 通过TIR，沿触摸表面的检测线。 信号处理器以重复序列操作以：产生（70,71）数据样本，其表示实际检测线上的检测到的信号能量; 基于所述数据样本生成（72,74）包括内插样本的内插正弦图，所述内插样本表示在所述触摸表面上具有期望位置的虚构检测线; 并且基于内插正弦图重建（75）用于触摸表面的信号交互模式。 信号处理器通过识别受有效性状态变化影响的插值样本，并通过将每个识别的插值样本设置为一个值来实现纠正（73）以抵消数据样本之间的数据样本的有效性状态变化的影响 保持来自前一次重复的虚拟检测线的相对信号传输的值。

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。