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1. 发明申请

US20120200538A1 TOUCH SURFACE WITH TWO-DIMENSIONAL COMPENSATION 审中-公开
标题翻译：具有二维补偿的触摸表面
公开(公告)号：US20120200538A1
公开(公告)日：2012-08-09
申请号：US13502649
申请日：2010-10-13
申请人： Tomas Christiansson , Christer Fåhraeus , Henrik Wall , Ola Wassvik , Mattias Bryborn Krus
发明人： Tomas Christiansson , Christer Fåhraeus , Henrik Wall , Ola Wassvik , Mattias Bryborn Krus
IPC分类号： G06F3/042
CPC分类号： G06F3/0418 , G06F3/0421 , G06F2203/04109
摘要： An apparatus for determining an interaction between an object and a touch surface of a panel. An illumination arrangement introduces light into the panel for propagation by internal reflection between the touch surface and an opposite surface and towards a receiving light detection arrangement. A processor unit is configured to iteratively i) determine, based on the received light, a current light status representing a two-dimensional distribution of light in the panel, ii) determine the interaction with the object as a function of the current light status and a previously updated background status representing a two-dimensional distribution of light in the panel caused by contaminations, and iii) update the background status as a function of the interaction. A method and computer readable medium are also described.
摘要翻译：一种用于确定面板的物体和触摸表面之间的相互作用的装置。照明装置将光引入面板中，用于通过触摸表面和相对表面之间的内部反射并且朝向接收光检测装置进行传播。处理器单元被配置为迭代地i）基于所接收的光确定表示面板中的二维光分布的当前光状态，ii）根据当前光状态确定与对象的相互作用，以及表示由污染引起的面板中的光的二维分布的先前更新的背景状态，以及iii）根据交互作用来更新背景状态。还描述了一种方法和计算机可读介质。

2. 发明授权

US08581884B2 Touch sensing apparatus and method of operating the same 有权
标题翻译：触摸感测装置及其操作方法
公开(公告)号：US08581884B2
公开(公告)日：2013-11-12
申请号：US12998771
申请日：2009-12-02
申请人： Christer Fåhraeus , Henrik Wall , Ola Wassvik , Tomas Christiansson
发明人： Christer Fåhraeus , Henrik Wall , Ola Wassvik , Tomas Christiansson
IPC分类号： G06F3/042
CPC分类号： G06F3/0325 , G06F3/0421 , G06F3/0428 , G06F2203/04104 , G06F2203/04109
摘要： 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.
摘要翻译：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对象（7）的位置。该装置包括一组发射光以发射至少部分触摸表面的发射器（2）;布置成接收来自发射器组（2）的光的光检测器（4），以及处理元件（7）。每个发射器（2）被控制以通过发射光发送代码，使得代码识别相应的发射器（2）。代码可以至少部分地同时发送。可以选择代码，使得每个代码的自相关的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对象（7）的位置来自各个发射体（2），例如使用三角测量或图像重建，如用于透射层析成像的算法。

3. 发明申请

US20120162144A1 Touch Surface With A Compensated Signal Profile 有权
标题翻译：触摸表面与补偿信号轮廓
公开(公告)号：US20120162144A1
公开(公告)日：2012-06-28
申请号：US13393764
申请日：2010-09-01
申请人： Christer Fåhraeus , Tomas Christiansson , Henrik Wall , Ola Wassvik
发明人： Christer Fåhraeus , Tomas Christiansson , Henrik Wall , Ola Wassvik
IPC分类号： G06F3/041
CPC分类号： G06F3/0421 , G06F3/0418 , G06F2203/04109
摘要： An apparatus, method and computer-readable medium for determining a location of at least one object on a touch surface of a light transmissive panel. The method comprises the steps of: introducing light into the panel for propagation by internal reflection between the touch surface and an opposite surface; receiving the light propagating in the panel; and iteratively i) determining a current signal profile of light received by the light detection arrangement, ii) updating, when a condition is met, a background signal profile of light received by the light detection arrangement, iii) calculating a current compensated signal profile as a function of the background signal profile and the current signal profile and iv) determining, when the object touches the touch surface and thereby attenuates the light propagating in the panel, the location as a function of the compensated signal profile.
摘要翻译：一种用于确定光透射面板的触摸表面上的至少一个物体的位置的装置，方法和计算机可读介质。该方法包括以下步骤：将光引入到面板中，用于通过触摸表面和相对表面之间的内部反射进行传播; 接收在面板中传播的光; 并且迭代地i）确定由光检测装置接收的光的当前信号分布，ii）当满足条件时更新由光检测装置接收的光的背景信号分布，iii）计算电流补偿信号分布为背景信号轮廓和当前信号轮廓的功能;以及iv）当物体接触触摸表面并因此衰减在面板中传播的光时，确定作为补偿信号轮廓的函数的位置。

4. 发明申请

US20110227874A1 TOUCH SENSING APPARATUS AND METHOD OF OPERATING THE SAME 有权
标题翻译：触摸感应装置及其操作方法
公开(公告)号：US20110227874A1
公开(公告)日：2011-09-22
申请号：US12998771
申请日：2009-12-02
申请人： Christer Fåhraeus , Henrik Wall , Ola Wassvik , Tomas Christiansson
发明人： Christer Fåhraeus , Henrik Wall , Ola Wassvik , Tomas Christiansson
IPC分类号： G06F3/042
CPC分类号： G06F3/0325 , G06F3/0421 , G06F3/0428 , G06F2203/04104 , G06F2203/04109
摘要： 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.
摘要翻译：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对象（7）的位置。该装置包括一组发射光以发射至少部分触摸表面的发射器（2）;布置成接收来自发射器组（2）的光的光检测器（4），以及处理元件（7）。每个发射器（2）被控制以通过发射光发送代码，使得代码识别相应的发射器（2）。代码可以至少部分地同时发送。可以选择代码，使得每个代码的自相关的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对象（7）的位置来自各个发射体（2），例如使用三角测量或图像重建，如用于透射层析成像的算法。

5. 发明申请

US20120256882A1 TOUCH SURFACE WITH IDENTIFICATION OF REDUCED PERFORMANCE 审中-公开
标题翻译：具有降低性能鉴定的触摸表面
公开(公告)号：US20120256882A1
公开(公告)日：2012-10-11
申请号：US13516133
申请日：2010-12-20
申请人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
发明人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
IPC分类号： G06F3/042
CPC分类号： G06F3/0418 , G06F3/0428 , G06F2203/04109
摘要： A device is configured to process data from a touch-sensitive apparatus for the purpose of identifying a reduced performance of components in the apparatus. The apparatus may be an FTIR system that comprises a light transmissive panel, an illumination arrangement for introducing light into the panel, and a light detection arrangement for receiving the light propagating in the panel and for measuring the energy of the received light. The device comprises a processor unit which is configured to obtain a signal comprising a time series of signal values that represent the energy of the light received by the light detection arrangement; calculate a parameter value representing a temporal variability of the signal values in the signal; and identify, based on the parameter value, a reduced performance of any of the illumination arrangement and the light detection arrangement. The temporal variability may be calculated to represent one of an absolute noise level and a signal-to-noise ratio of the signal, and enables the reduced performance to be identified while objects touch the light transmissive panel.
摘要翻译：设备被配置为处理来自触敏设备的数据，以便识别设备中部件的性能降低。该装置可以是FTIR系统，其包括透光面板，用于将光引入面板的照明装置和用于接收在面板中传播的光并用于测量接收到的光的能量的光检测装置。该设备包括处理器单元，其被配置为获得包括表示由光检测装置接收的光的能量的信号值的时间序列的信号; 计算表示信号中的信号值的时间变异性的参数值; 并且基于参数值识别任何照明布置和光检测布置的降低的性能。可以计算时间变化性以表示信号的绝对噪声电平和信噪比之一，并且使得当对象接触透光面板时能够识别降低的性能。

6. 发明授权

US09158401B2 Data processing in relation to a multi-touch sensing apparatus 有权
标题翻译：关于多点触摸感测装置的数据处理
公开(公告)号：US09158401B2
公开(公告)日：2015-10-13
申请号：US13807159
申请日：2011-06-29
申请人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
发明人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
IPC分类号： G06F3/041 , G06F3/0488
CPC分类号： G06F3/0416 , G06F3/041 , G06F3/0418 , G06F3/044 , G06F3/04883 , G06F2203/04104 , G06F2203/04808
摘要： A device obtains a signal representative of objects on a touch surface of a multi-touch sensing apparatus and executes a method for extracting touch data from the signal. The method operates in a sequence of detection frames. Each detection frame comprises the steps of: obtaining (300) the signal; processing (301) the signal for identifying touches; determining (302) a set of identified touches and touch data for the set of identified touches; and outputting (303) the touch data. At least one of the steps of processing (301) and determining (302) includes a prioritization that actively favors certain touches to be identified and included in the set of identified touches, respectively. Temporal prioritization favors a touch that corresponds to a previous touch, which is identified in one or more preceding detection frames. Spatial prioritization favors a touch that is located within at least one predefined subarea on the touch surface. The and prioritization enables the touch data to be generated in way that is predictable, consistent and in accordance with user expectations within a general or specific context.
摘要翻译：设备获得代表多点触摸感测设备的触摸表面上的对象的信号，并且执行从该信号中提取触摸数据的方法。该方法以检测帧序列操作。每个检测帧包括以下步骤：获得信号（300）; 处理（301）用于识别触摸的信号; 确定（302）所识别的触摸集合的一组识别的触摸和触摸数据; 并输出（303）触摸数据。处理（301）和确定（302）的步骤中的至少一个包括分别主动地有助于某些触摸被识别并包括在所识别的触摸的集合中的优先级排序。时间优先次序有利于在先前的一个或多个检测帧中识别的先前触摸对应的触摸。空间优先级有利于位于触摸表面上至少一个预定义子区域内的触摸。该优先级和优先级使触摸数据的生成方式是可预测的，一致的，并且根据用户在一般或特定上下文中的期望。

7. 发明申请

US20130154983A1 DATA PROCESSING IN RELATION TO A MULTI-TOUCH SENSING APPARATUS 有权
标题翻译：关于多触摸感应装置的数据处理
公开(公告)号：US20130154983A1
公开(公告)日：2013-06-20
申请号：US13807159
申请日：2011-06-29
申请人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
发明人： Tomas Christiansson , Christer Fåhraeus , Ola Wassvik
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F3/041 , G06F3/0418 , G06F3/044 , G06F3/04883 , G06F2203/04104 , G06F2203/04808
摘要： A device obtains a signal representative of objects on a touch surface of a multi-touch sensing apparatus and executes a method for extracting touch data from the signal. The method operates in a sequence of detection frames. Each detection frame comprises the steps of: obtaining (300) the signal; processing (301) the signal for identifying touches; determining (302) a set of identified touches and touch data for the set of identified touches; and outputting (303) the touch data. At least one of the steps of processing (301) and determining (302) includes a prioritization that actively favors certain touches to be identified and included in the set of identified touches, respectively. Temporal prioritization favors a touch that corresponds to a previous touch, which is identified in one or more preceding detection frames. Spatial prioritization favors a touch that is located within at least one predefined subarea on the touch surface. The and prioritization enables the touch data to be generated in way that is predictable, consistent and in accordance with user expectations within a general or specific context.
摘要翻译：设备获得代表多点触摸感测设备的触摸表面上的对象的信号，并且执行从该信号中提取触摸数据的方法。该方法以检测帧序列操作。每个检测帧包括以下步骤：获得信号（300）; 处理（301）用于识别触摸的信号; 确定（302）所识别的触摸集合的一组识别的触摸和触摸数据; 并输出（303）触摸数据。处理（301）和确定（302）的步骤中的至少一个包括分别主动地有助于某些触摸被识别并包括在所识别的触摸的集合中的优先级排序。时间优先次序有利于在先前的一个或多个检测帧中识别的先前触摸对应的触摸。空间优先级有利于位于触摸表面上至少一个预定义子区域内的触摸。该优先级和优先级使触摸数据的生成方式是可预测的，一致的，并且根据用户在一般或特定上下文中的期望。

8. 发明授权

US08692807B2 Touch surface with a compensated signal profile 有权
标题翻译：使用补偿信号曲线触摸表面
公开(公告)号：US08692807B2
公开(公告)日：2014-04-08
申请号：US13393764
申请日：2010-09-01
申请人： Christer Føhraeus , Tomas Christiansson , Henrik Wall , Ola Wassvik
发明人： Christer Føhraeus , Tomas Christiansson , Henrik Wall , Ola Wassvik
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/0418 , G06F2203/04109
摘要： An apparatus, method and computer-readable medium for determining a location of at least one object on a touch surface of a light transmissive panel. The method comprises the steps of: introducing light into the panel for propagation by internal reflection between the touch surface and an opposite surface; receiving the light propagating in the panel; and iteratively i) determining a current signal profile of light received by the light detection arrangement, ii) updating, when a condition is met, a background signal profile of light received by the light detection arrangement, iii) calculating a current compensated signal profile as a function of the background signal profile and the current signal profile and iv) determining, when the object touches the touch surface and thereby attenuates the light propagating in the panel, the location as a function of the compensated signal profile.
摘要翻译：一种用于确定光透射面板的触摸表面上的至少一个物体的位置的装置，方法和计算机可读介质。该方法包括以下步骤：将光引入到面板中，用于通过触摸表面和相对表面之间的内部反射进行传播; 接收在面板中传播的光; 并且迭代地i）确定由光检测装置接收的光的当前信号分布，ii）当满足条件时更新由光检测装置接收的光的背景信号分布，iii）计算电流补偿信号分布为背景信号轮廓和当前信号轮廓的功能;以及iv）当物体接触触摸表面并因此衰减在面板中传播的光时，确定作为补偿信号轮廓的函数的位置。

9. 发明授权

US08860696B2 Integrated touch-sensing display apparatus and method of operating the same 有权
标题翻译：集成式触摸感应显示装置及其操作方法
公开(公告)号：US08860696B2
公开(公告)日：2014-10-14
申请号：US12998611
申请日：2009-11-12
申请人： Ola Wassvik , Tomas Christiansson
发明人： Ola Wassvik , Tomas Christiansson
IPC分类号： G09G5/00 , G06F3/042 , G06F3/041 , G06K11/06 , G08C21/00 , G02F1/1333 , G02B6/42
CPC分类号： G06F3/042 , G02B6/429 , G02F1/13338 , G06F3/0412 , G06F3/0428 , G06F2203/04109
摘要： An integrated touch-sensing display is operated to detect the location of one or more objects on a touch surface. The integrated touch-sensing display defines a display area. A light guide (14) is arranged over the display area to define the touch surface (16). The light guide (14) is illuminated internally such that an object (20) contacting the touch surface (16) causes part of the illuminating light to be scattered towards the display area. An array of light sensors (6) is integrated within the display area to detect the scattered light. Based on output signals from the light sensors (6), a processing element obtains image data that represents the light that impinges on the display area excluding ambient light, and determines the location of the object (20) on the touch surface (16). Ambient light may be suppressed by a spectral passband filter in front of each light sensor (6), and/or by electronic filtering of the output signals from the sensors (6). The light guide (14) may be illuminated by invisible light, and may be arranged to cause an illuminating beam to be internally reflected at a peripheral edge surface of the light guide (14), so as to increase the intensity of illuminating light inside the light guide (14).
摘要翻译：操作集成的触摸感测显示器以检测触摸表面上的一个或多个对象的位置。集成的触摸感应显示器定义显示区域。导光板（14）布置在显示区域上以限定触摸表面（16）。导光体（14）内部被照亮，使得与触摸面（16）接触的物体（20）使部分照明光朝向显示区域散射。一组光传感器（6）集成在显示区域内，以检测散射光。基于来自光传感器（6）的输出信号，处理元件获得表示除了环境光之外的显示区域上照射的光的图像数据，并且确定物体（20）在触摸表面（16）上的位置。可以通过每个光传感器（6）前方的光谱通带滤光器和/或通过电子滤波来自传感器（6）的输出信号来抑制环境光。光导（14）可以被不可见光照射，并且可以被布置成使得照明光束在光导（14）的周边边缘表面内部被反射，从而增加光导光导（14）。

10. 发明申请

US20110163996A1 DETERMINING THE LOCATION OF ONE OR MORE OBJECTS ON A TOUTH SURFACE 审中-公开
标题翻译：确定一个或多个物体在一个表面上的位置
公开(公告)号：US20110163996A1
公开(公告)日：2011-07-07
申请号：US12737017
申请日：2009-06-22
申请人： Ola Wassvik , Tomas Christiansson , Mattias Bryborn
发明人： Ola Wassvik , Tomas Christiansson , Mattias Bryborn
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/0423 , G06F2203/04109
摘要： An apparatus is operated to determine a location of at least one object on a touch surface of a light transmissive panel. An illumination arrangement in the apparatus is operated to introduce beams of radiation into the panel for propagation by internal reflection between the touch surface and the opposite surface, and to sweep each beam along the touch surface within a sensing area. Thereby, the sensing area is illuminated such that an object 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, downstream of the sensing area, is swept along one or more elongate outcoupling sites on the panel. At least one light sensor, which is optically coupled to the outcoupling site, is operated to measure the received energy of the beam within the outcoupling site. A data processor is operated to obtain, from the light sensor, an output signal indicative of the received energy of the beam within the outcoupling site as a function of time, and to identify, based on the output signals for the different beams, the location of the object.
摘要翻译：操作装置以确定至少一个物体在透光面板的触摸表面上的位置。操作该装置中的照明装置以将辐射束引入面板，以通过触摸表面和相对表面之间的内部反射进行传播，并且在感测区域内沿着触摸表面扫掠每个光束。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导致至少两个光束被暂时衰减。照明布置被布置成使得在感测区域的下游的每个光束沿着面板上的一个或多个细长的外耦合位置扫过。光耦合到外耦合位置的至少一个光传感器被操作以测量输出耦合位置内的光束的接收能量。操作数据处理器以从光传感器获得表示作为时间的函数的输出耦合位置内的波束的接收能量的输出信号，并且基于不同波束的输出信号来识别位置的对象。

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