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：WO2010006886A2

公开(公告)日：2010-01-21

申请号：PCT/EP2009057731

申请日：2009-06-22

Applicant: FLATFROG LAB AB ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS ,  BRYBORN MATTIAS

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS ,  BRYBORN MATTIAS

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0423 ,  G06F2203/04109

Abstract: An apparatus is operated to determine a location of at least one object (O1) on a touch surface of a light transmissive panel (1). An illumination arrangement in the apparatus is operated to introduce beams (B1, B2) of radiation into the panel (1) for propagation by internal reflection between the touch surface and the opposite surface, and to sweep each beam (B1, B2) along the touch surface within a sensing area. Thereby, the sensing area is illuminated such that an object (O1) that touches the touch surface within the sensing area causes at least two beams to be temporarily attenuated. The illumination arrangement is arranged such that each beam (B1, B2), downstream of the sensing area, is swept along one or more elongate outcoupling sites on the panel (1). At least one light sensor (9A, 9B), which is optically coupled to the outcoupling site, is operated to measure the received energy of the beam (B1, B2) within the outcoupling site. A data processor (7) is operated to obtain, from the light sensor (9A, 9B), an output signal (S1, S2) indicative of the received energy of the beam (B1, B2) within the outcoupling site as a function of time, and to identify, based on the output signals (S1, S2) for the different beams (B1, B2), the location of the object.

Abstract translation: 操作装置来确定在透光面板（1）的触摸表面上的至少一个物体（O1）的位置。 操作该装置中的照明装置以将辐射束（B1，B2）引入面板（1）中，以通过在触摸表面和相对表面之间的内部反射进行传播，并且沿着该扫描方向扫描每个光束（B1，B2） 感测区域内的触摸表面。 因此，感测区域被照亮，使得接触感测区域内的触摸表面的物体（O1）使得至少两个光束被暂时衰减。 照明装置被布置成使得在感测区域下游的每个光束（B1，B2）沿面板（1）上的一个或多个细长的外耦合位置扫过。 操作光学耦合到外耦合位置的至少一个光传感器（9A，9B），以测量外耦合位置内的束（B1，B2）的接收能量。 操作数据处理器（7）以从光传感器（9A，9B）获得表示外耦合位置内的接收能量（B1，B2）的接收能量的输出信号（S1，S2），作为 时间，并且基于用于不同波束（B1，B2）的输出信号（S1，S2）来识别对象的位置。

公开(公告)号：WO2010006884A3

公开(公告)日：2010-11-25

申请号：PCT/EP2009057725

申请日：2009-06-22

Applicant: FLATFROG LAB AB ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

CPC classification number: G06F3/0423 ,  G06F2203/04109

Abstract: An apparatus is operated to determine the location of at least one object on a touch surface of a light transmissive panel (1). In the apparatus, an illumination arrangement introduces radiation into the panel (1) for propagation by internal reflection between the touch surface and the opposite surface, so as to generate a grid of intersecting radiation paths in a sensing area, and a detection arrangement measures the transmitted energy in the radiation paths. A data processor (8) then determines, based on the transmitted energy, the location based on an attenuation of two or more radiation paths caused by the object (01) touching the touch surface within the sensing area. In the apparatus, the illumination arrangement generates at least a subset of the radiation paths by sweeping at least one beam (B1, B2) of radiation along the touch surface. The detection arrangement comprises a fixed re-directing device (12A, 12B) which receives and re-directs the beam (B1, B2) onto a common detection point (D1, D2) while the beam (B1, B2) is swept along the touch surface, and a radiation detector (RD1, RD2) which is located at the common detection point (D1, D2) to measure the energy of the beam(s) (B1, B2).

Abstract translation: 操作设备以确定透光板（1）的触摸表面上的至少一个物体的位置。 在该设备中，照明装置将辐射引入到面板（1）中以通过在触摸表面和相对表面之间的内部反射进行传播，从而在感测区域中生成相交的辐射路径的栅格，并且检测装置测量 在辐射路径中传输能量。 然后数据处理器（8）基于传输的能量基于由物体（01）触摸感测区域内的触摸表面引起的两个或更多个辐射路径的衰减来确定位置。 在该设备中，照明装置通过沿着触摸表面扫描至少一个辐射束（B1，B2）来产生辐射路径的至少一个子集。 该检测装置包括一个固定的重定向装置（12A，12B），该装置在光束（B1，B2）沿着该光束（B1，B2）被扫过时接收光束（B1，B2）并将其重定向到公共检测点 触摸表面以及位于公共检测点（D1，D2）处的辐射检测器（RD1，RD2）以测量光束（B1，B2）的能量。

公开(公告)号：WO2010064983A3

公开(公告)日：2010-08-05

申请号：PCT/SE2009051364

申请日：2009-12-02

Applicant: FLATFROG LAB AB ,  FAAHRAEUS CHRISTER ,  WALL HENRIK ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

Inventor： FAAHRAEUS CHRISTER ,  WALL HENRIK ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

CPC classification number: G06F3/0325 ,  G06F3/0421 ,  G06F3/0428 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: A touch sensing apparatus is controlled to determine the position of one or more objects (7) that interact with a touch surface (1). The apparatus includes a group of emitters (2) arranged to emit light to illuminate at least part of the touch surface (1), a light detector (4) arranged to receive light from the group of emitters (2), and a processing element (7). Each emitter (2) is controlled to transmit a code by way of the emitted light such that the code identifies the respective emitter (2). The codes may at least partly be transmitted concurrently. The codes may be selected such that a value of an autocorrelation of each code is significantly higher than a value of a cross-correlation between any two codes of different emitters (2). The processing element processes an output signal from the light detector (4) to separate the light received from the individual emitters (2) based on the transmitted codes, and to determine the position of the object/objects (7) based on the light received from the individual emitters (2), e.g. using triangulation or image reconstruction such as an algorithm for transmission tomography.

Abstract translation: 控制触摸感测装置以确定与触摸表面（1）相互作用的一个或多个物体（7）的位置。 该设备包括：一组发射器（2），被布置为发射光以照亮触摸表面（1）的至少一部分;光检测器（4），被布置为接收来自该组发射器（2）的光;以及处理元件 （7）。 控制每个发射器（2）通过发射的光传输代码，使得代码识别相应的发射器（2）。 代码可以至少部分地同时传输。 代码可以被选择为使得每个代码的自相关值明显高于不同发射器（2）的任何两个代码之间的互相关的值。 处理元件处理来自光检测器（4）的输出信号，以基于所发送的代码分离从各个发射器（2）接收的光，并且基于所接收的光来确定物体/物体（7）的位置 来自各个发射器（2），例如， 使用三角测量或图像重建，例如透射层析成像算法。

公开(公告)号：WO2010006883A3

公开(公告)日：2010-12-02

申请号：PCT/EP2009057724

申请日：2009-06-22

Applicant: FLATFROG LAB AB ,  CHRISTIANSSON TOMAS ,  WASSVIK OLA ,  BRYBORN MATTIAS

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA ,  BRYBORN MATTIAS

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0423 ,  G06F2203/04109

Abstract: A device operates on output signals (S1, S2) from a light sensor arrangement in a touch-sensing apparatus to determine a position of an object (6) on a touch surface (4). The apparatus includes a light transmissive panel (1) that defines the touch surface (4) and an opposite surface. A light source arrangement provides sheets of light inside the panel (1), wherein each sheet comprises light that propagates by internal reflection between the touch surface (4) and the opposite surface from one or more incoupling points to a set of outcoupling points. The light sensor arrangement generates the output signals (S1, S2), which represent light reaching the outcoupling points. The apparatus is configured such that an object (6) touching the touch surface (4) locally attenuates at least two sheets of light. To determine the position, the device identifies, in the output signals (S1, S2), a set of signal profiles (P1a, P1b, P2a, P2b) originating from said object (6). The device determines at least part of an attenuated light path across the panel (1) based on each signal profile (P1a, P1b, P2a, P2b), and identifies the position of the object (6) on the touch surface (4) based on the thus-determined attenuated light paths. In determining the attenuated light path, the device applies a predetermined width function which is representative of a dependence of signal profile width on distance to the incoupling point due to light scattering caused by at least one of the touch surface (4) and the opposite surface (5).

Abstract translation: 装置对来自触敏装置中的光传感器装置的输出信号（S1，S2）进行操作以确定物体（6）在触摸表面（4）上的位置。 该设备包括限定触摸表面（4）和相对表面的透光板（1）。 光源装置在面板（1）内提供多张光，其中每张薄片包括通过在触摸表面（4）和相对表面之间从一个或多个耦合点到一组耦合点之间的内部反射传播的光。 光传感器装置产生代表到达外耦合点的光的输出信号（S1，S2）。 该装置被配置为使得触摸触摸表面（4）的物体（6）局部地衰减至少两个光片。 为了确定位置，设备在输出信号（S1，S2）中识别源自所述对象（6）的一组信号轮廓（P1a，P1b，P2a，P2b）。 该装置基于每个信号轮廓（P1a，P1b，P2a，P2b）确定横跨面板（1）的衰减光路径的至少一部分，并基于触摸表面（4）识别物体（6）的位置 在这样确定的衰减光路上。 在确定衰减光路时，该装置施加预定宽度函数，该预定宽度函数表示由于触摸表面（4）和相对表面（4）中的至少一个引起的光散射而导致的信号轮廓宽度与到耦合点的距离的依赖性 （5）。

公开(公告)号：WO2010006885A3

公开(公告)日：2010-11-25

申请号：PCT/EP2009057728

申请日：2009-06-22

Applicant: FLATFROG LAB AB ,  WASSVIK OLA ,  VILHELMSSON KENNET

Inventor： WASSVIK OLA ,  VILHELMSSON KENNET

IPC: G06F3/042

CPC classification number: G06F3/0423 ,  G06F2203/04109

Abstract: An apparatus is controlled to detect a location of an object (O1) on a touch surface of a panel (1). An input scanner arrangement (BS1-BS2, 12A-12B) introduces at least two beams (B1, B2) of radiation into the panel (1) for propagation by internal reflection, and sweeps the beams (B1, B2) inside the panel across a sensing area. An output scanner arrangement (10A-10B, SD1-SD2) is synchronized with the input scanner arrangement so as to receive the beams (B1, B2) from the input scanner arrangement while they are swept across the sensing area and to direct the beams (B1, B2) onto at least one radiation detector. Thereby, each beam (B1, B2) is introduced and received on opposite ends of the sensing area. A data processor is connected to the radiation detector and operated to identify the location based on an attenuation of the beams (B1, B2) caused by the object (O1) touching the touch surface within the sensing area.

Abstract translation: 控制装置以检测面板（1）的触摸表面上的物体（O1）的位置。 输入扫描器装置（BS1-BS2,12A-12B）将至少两束辐射束（B1，B2）引入面板（1）以通过内部反射进行传播，并将面板内的光束（B1，B2）横过 感测区域。 输出扫描器装置（10A-10B，SD1-SD2）与输入扫描器装置同步，以便当它们扫过感测区域并引导光束时从输入扫描器装置接收光束（B1，B2） B1，B2）到至少一个辐射检测器。 因此，每个光束（B1，B2）被引入和接收在感测区域的相对端。 数据处理器连接到辐射检测器并且被操作以基于由物体（O1）在感测区域内触摸触摸表面引起的光束（B1，B2）的衰减来识别位置。

公开(公告)号：WO2016130074A4

公开(公告)日：2016-10-13

申请号：PCT/SE2016050098

申请日：2016-02-09

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  BERGSTRÖM HÅKAN ,  KARLSSON IVAN ,  CRAVEN-BARTLE THOMAS

IPC: G06F3/042

CPC classification number: G06F3/0428 ,  G06F3/0421 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: An embodiment of the invention provides a touch sensing apparatus, comprising: a light transmissive element (10) that defines a touch surface; a set of emitters (30a) arranged around the periphery of the touch surface to emit beams of light into the light transmissive element, wherein a first portion of the beams (50) of light propagate inside the light transmissive element while illuminating the touch surface such that an object touching the touch surface causes an attenuation of the propagating light, and wherein a second portion of the beams (90) of light pass out of the light transmissive element and are reflected to travel above the touch surface, a set of light detectors (30b) arranged around the periphery of the touch surface to receive light from the set of emitters from the transmissive element and from above the touch surface, wherein each light detector is arranged to receive light from more than one emitter.

Abstract translation: 本发明的实施例提供了一种触摸感测设备，包括：限定触摸表面的透光元件（10） 一组发射器（30a），其布置在所述触摸表面的外围周围以将光束发射到所述透光元件中，其中所述光束（50）的第一部分在所述透光元件内部传播，同时照亮所述触摸表面，例如 接触触摸表面的物体引起传​​播光的衰减，并且其中光束（90）的第二部分穿出透光元件并且被反射以在触摸表面上方行进，一组光检测器 （30b），其布置在所述触摸表面的外围周围，以从所述透射元件接收来自所述一组发射器的光并且从所述触摸表面的上方接收光，其中每个光检测器布置成接收来自多于一个发射器的光。

公开(公告)号：WO2010006882A3

公开(公告)日：2010-04-15

申请号：PCT/EP2009057723

申请日：2009-06-22

Applicant: FLATFROG LAB AB ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0423 ,  G06F2203/04109

Abstract: An apparatus is controlled to detect locations of a plurality of objects on a touch surface of a panel (1). An input scanner arrangement introduces at least three beams (B1- B6) of radiation into the panel (1) for propagation by internal reflection, and sweeps the beams (B1-B6) inside the panel across a sensing area, preferably in at least two different principal directions (R1, R2). At least one radiation detector is arranged to receive the beams (B1-B6) from the input scanner arrangement while they are swept across the sensing area. A data processor is connected to the radiation detector(s) and operated to identify the locations based on an attenuation of the beams (B1-B6) caused by the objects touching the touch surface within the sensing area, the attenuation being identifiable from an output signal of the radiation detector(s). Each output signal may be further processed to generate a transmission signal, by dividing the output signal by a background signal which represents the output signal without any object on the touch surface.

Abstract translation: 控制装置以检测面板（1）的触摸表面上的多个物体的位置。 输入扫描器装置将至少三个辐射束（B1-B6）引入到面板（1）中以通过内部反射传播，并且将扫描板内的光束（B1-B6）扫过感测区域，优选地在至少两个 不同的主方向（R1，R2）。 至少一个辐射检测器被布置成当它们被扫过感测区域时从输入扫描器装置接收光束（B1-B6）。 数据处理器连接到辐射检测器，并且被操作以基于由感测区域内触摸触摸表面的物体引起的光束（B1-B6）的衰减来识别位置，该衰减可从输出 辐射探测器的信号。 可以通过将输出信号除以表示输出信号的背景信号而在接触表面上没有任何物体来进一步处理每个输出信号以产生发送信号。

公开(公告)号：AU2010290148A1

公开(公告)日：2012-03-15

申请号：AU2010290148

申请日：2010-09-01

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA

IPC: G06F3/042

Abstract: A touch-sensitive system comprises a light transmissive panel (1) defining a touch surface and an opposite surface; an illumination arrangement (3) comprising emitters (2) configured to introduce light into the panel (1) for propagation in the panel (1) in an emission pattern; a light detection arrangement (5) comprising detectors (4) configured to receive the light propagating in the panel (1). A control unit (6) is arranged to control the operation of the touch-sensitive system. The control unit (6) executes a control method to monitor the light received in the light detecting arrangement (5) for detection of touches on the touch surface, the touches attenuating the light propagating in the panel (1). The control method also selects a mode for the emission pattern in dependence of the occurrence of touches on the touch surface and controls the emission pattern in accordance with the selected mode.

公开(公告)号：CA2745422A1

公开(公告)日：2010-06-10

申请号：CA2745422

申请日：2009-12-02

Applicant: FLATFROG LAB AB

Inventor： FAHRAEUS CHRISTER ,  WALL HENRIK ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

Abstract: A touch sensing apparatus is controlled to determine the position of one or more objects (7) that interact with a touch surface (1). The apparatus includes a group of emitters (2) arranged to emit light to illuminate at least part of the touch surface (1), a light detector (4) arranged to receive light from the group of emitters (2), and a processing element (7). Each emitter (2) is controlled to transmit a code by way of the emitted light such that the code identifies the respective emitter (2). The codes may at least partly be transmitted concurrently. The codes may be selected such that a value of an autocorrelation of each code is significantly higher than a value of a cross-correlation between any two codes of different emitters (2). The processing element processes an output signal from the light detector (4) to separate the light received from the individual emitters (2) based on the transmitted codes, and to determine the position of the object/objects (7) based on the light received from the individual emitters (2), e.g. using triangulation or image reconstruction such as an algorithm for transmission tomography.