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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。
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公开(公告)号：SE2330076A1
公开(公告)日：2024-08-11
申请号：SE2330076
申请日：2023-02-10
Applicant: FLATFROG LAB AB
Inventor： KRUS MATTIAS
Abstract: A surface optimized for having augmented reality (AR) images projected on to it is disclosed. The surface may comprise a matte finish to reduce glare and reflections, a low reflectivity to reduce the amount of light bouncing off the surface, AR markings to anchor the AR projections, a border with a width of at least 5% of the diameter of the surface, optical tracking points comprising position encoding dot patterns, and a light shield to shield it from ambient light. The surface may be size adjustable by using a modular system of panels, expandable fabric, inflatable structure, folding frame, sliding mechanism, rolling mechanism or accordion structure. A method for projecting augmented reality images on to said surface is also disclosed.
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公开(公告)号：ES2991658T3
公开(公告)日：2024-12-04
申请号：ES20816652
申请日：2020-11-24
Applicant: FLATFROG LAB AB
Inventor： ANDERSSON DAVID , KRUS MATTIAS
IPC: G06F3/042
Abstract: Se describe un aparato de detección táctil para detectar la presión táctil, que comprende un panel que define una superficie táctil, teniendo el panel un perímetro, una pluralidad de emisores dispuestos a lo largo del perímetro, en donde los emisores emiten luz a través del panel, una pluralidad de detectores dispuestos a lo largo del perímetro, por lo que los detectores están dispuestos para recibir al menos parte de dicha luz como luz de detección, en donde el aparato de detección táctil está configurado para determinar, cuando un objeto táctil desvía el panel a lo largo de una normal de la superficie táctil, una diferencia en la luz de detección recibida entre la desviación del panel desde una primera posición (p1) a una segunda posición (p2) a lo largo de la normal, y determinar una presión del objeto táctil contra la superficie táctil basándose en dicha diferencia. (Traducción automática con Google Translate, sin valor legal)
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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
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.
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