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1. 发明申请

US20070115152A1 Method, apparatus, computer program and sotrage medium for recording a movement of a user unit 有权
标题翻译：用于记录用户单元移动的方法，装置，计算机程序和存储介质
公开(公告)号：US20070115152A1
公开(公告)日：2007-05-24
申请号：US10582996
申请日：2004-12-16
申请人： Andreas Bjorklund , Torbjorn Gardenfors , Tomas Edso
发明人： Andreas Bjorklund , Torbjorn Gardenfors , Tomas Edso
IPC分类号： H03M7/34
CPC分类号： G06K19/06037 , G06F3/0321 , G06F3/03545 , G06K9/22 , G06K2009/226
摘要： A position code is recorded by capturing a sequence of images while writing on the base with a user unit. The position code may be decoded to a sequence of absolute positions reflecting the movement of the user unit over the base. If the position code in any image is not sufficiently recorded, e.g. because it is obscured by other graphics on the base, the spatial relationship of the image to another image in the sequence is determined. If the position code in this other image in the image sequence is decodable to an absolute position, the absolute position of the image in which the position code is not decodable could nevertheless be determined by using the spatial relationship. In this way the movement of the user unit can be recorded even though the position code is obscured, which could be the case when the same printing ink is used for both the position code and other graphics on the base.
摘要翻译：通过在用户单元写入基座时捕获图像序列来记录位置代码。位置码可以被解码为反映用户单元在基座上的移动的绝对位置序列。如果任何图像中的位置代码未被充分记录，例如因为它被基础上的其他图形遮蔽，所以确定了图像与序列中另一图像的空间关系。如果图像序列中该另一图像中的位置码可解码为绝对位置，则可以通过使用空间关系来确定位置码不能解码的图像的绝对位置。以这种方式，即使位置代码被遮蔽也可以记录用户单元的移动，这可能是当相同的印刷墨水用于基座上的位置代码和其他图形时的情况。

2. 发明申请

US20070064818A1 METHOD AND DEVICE FOR DECODING A POSITION-CODING PATTERN 有权
标题翻译：用于解码位置编码模式的方法和装置
公开(公告)号：US20070064818A1
公开(公告)日：2007-03-22
申请号：US11532038
申请日：2006-09-14
申请人： Mats-Petter PETTERSSON , Andreas BJORKLUND
发明人： Mats-Petter PETTERSSON , Andreas BJORKLUND
IPC分类号： H04B14/06
CPC分类号： G06F3/03545 , G06F3/0321 , G06K7/1443 , G06K9/22 , G06K19/06037 , G06K2009/226
摘要： In a method for position decoding, a position is calculated on the basis of information determined from a partial area, imaged by a sensor, of a position-coding pattern. If the position calculation fails, the information from the partial area recorded by the sensor is matched with information about how the position-coding pattern is designed in a plurality of matching partial areas, which each define a position in the position-coding pattern. The position of the positions defined by the matching partial areas, which according to the matching step is the most probable position in the position-coding pattern for the imaged partial area is accepted as the decoded position. A device and a computer program for carrying out the method are also described.
摘要翻译：在位置解码方法中，基于由传感器成像的部分区域确定的位置编码图案来计算位置。如果位置计算失败，则由传感器记录的部分区域的信息与在多个匹配部分区域中如何设计位置编码模式的信息相匹配，每个匹配部分区域定义位置编码模式中的位置。被匹配的部分区域所定义的位置的位置被接收作为解码位置，该匹配部分区域根据匹配步骤是成像部分区域的位置编码图案中最可能的位置。还描述了用于执行该方法的设备和计算机程序。

3. 发明授权

US08982084B2 Tracking objects on a touch surface 有权
标题翻译：跟踪触摸面上的物体
公开(公告)号：US08982084B2
公开(公告)日：2015-03-17
申请号：US14004323
申请日：2012-12-10
申请人： Tomas Christiansson , Nicklas Ohlsson , Andreas Bjorklund , Mats Petter Wallander
发明人： Tomas Christiansson , Nicklas Ohlsson , Andreas Bjorklund , Mats Petter Wallander
IPC分类号： G06F3/041 , G06F3/042
CPC分类号： G06F3/0418 , G06F3/0421 , G06F2203/04109
摘要： 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 an interaction pattern that indicates local changes in interaction on the touch surface, identify apparent peaks in the interaction pattern, and update existing movement trajectories based on the apparent peaks. An error suppression process 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.
摘要翻译：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指示触摸表面上的交互的局部变化的交互模式，识别交互模式中的明显峰值，并且基于表观峰值来更新现有移动轨迹。至少在方法中执行误差抑制过程以处理表观峰值和/或现有移动轨迹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，并且引起对在该方法的一个或多个后续重复中的运动命题。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。

4. 发明申请

US20070299896A1 Method in Creating a Symbol Pattern, Symbol Pattern Obtained Thereby, Method and System for Finding a Position in Such Symbol Pattern and Computer Program Product for Performing the Method 有权
标题翻译：创建符号模式的方法，由此获得的符号模式，用于在这种符号模式中查找位置的方法和系统以及用于执行该方法的计算机程序产品
公开(公告)号：US20070299896A1
公开(公告)日：2007-12-27
申请号：US11630086
申请日：2005-07-05
申请人： Andreas Bjorklund , Petter Ericson
发明人： Andreas Bjorklund , Petter Ericson
IPC分类号： G06F1/02 , G06F11/00 , G06F17/14
CPC分类号： G06F3/03545 , G06F3/0321 , G06K9/22 , G06K2009/226
摘要： The invention relates to a method in creating a two-dimensional symbol pattern which may be utilized to determine a position in a large area covered by the pattern, for example for recording handwritten information by means of a pen-like instrument. The invention is useful for creating a symbol pattern having desired properties, namely that any sufficiently large observed part of the pattern is unique, enabling an unambiguous determination of position. The symbol pattern is based on a non-repeating sequence of symbol values Sk that each corresponds to a fixed linear combination of the coefficients of the monomials in xk mod P(x), where P(x) is any polynomial of degree n in the field Fq. The symbol pattern is generated by folding the sequence according to a wrapping scheme. The invention also relates to methods and systems for finding the position of a group of observed symbol values in this symbol pattern and computer program products performing the methods.
摘要翻译：本发明涉及一种创建二维符号图案的方法，该二维符号图案可用于确定由图案覆盖的大区域中的位置，例如通过笔状仪器记录手写信息。本发明对于创建具有期望属性的符号图案是有用的，即，图案的任何足够大的观察部分是唯一的，能够明确地确定位置。符号模式基于符号值Sk的非重复序列，每个符号值Sk对应于xk mod P（x）中的单项式的系数的固定线性组合，其中P（x）是字段Fq。通过根据包装方案折叠序列来生成符号图案。本发明还涉及用于在该符号模式中查找一组观察到的符号值的位置的方法和系统以及执行该方法的计算机程序产品。

5. 发明申请

US20070272750A1 Coding and Decoding of Data 有权
标题翻译：数据的编码和解码
公开(公告)号：US20070272750A1
公开(公告)日：2007-11-29
申请号：US11630038
申请日：2005-06-23
申请人： Andreas Bjorklund
发明人： Andreas Bjorklund
IPC分类号： G06K19/00 , G06K7/00
CPC分类号： G06F3/03545
摘要： An information code has a positioning layer for coding position information and a data layer for coding arbitrary non-positional data. Both the positioning layer and the data layer may be formed by circularly shifted instances of a window sequence. A product with the information code, methods for coding and decoding the information code, and an apparatus for decoding the information code are disclosed.
摘要翻译：信息码具有用于编码位置信息的定位层和用于编码任意非位置数据的数据层。定位层和数据层都可以由窗口序列的循环移位实例形成。公开了具有信息代码的产品，用于对信息代码进行编码和解码的方法，以及用于对信息代码进行解码的装置。

6. 发明申请

US20060239505A1 Methods, apparatus, computer program and storage medium for position decoding 失效
标题翻译：用于位置解码的方法，装置，计算机程序和存储介质
公开(公告)号：US20060239505A1
公开(公告)日：2006-10-26
申请号：US10554231
申请日：2004-04-29
申请人： Andreas Bjorklund , Tomas Edso
发明人： Andreas Bjorklund , Tomas Edso
IPC分类号： G06K9/00 , G09G5/00 , G06K9/36
CPC分类号： G06F3/03545 , G06F3/0321 , G06F3/04883 , G06K9/222
摘要： A method, in an apparatus for position decoding, operates to extract a sequence of positions from a sequence of images of a position-coding pattern, as recorded by a sensor. The method, which may be embodied as a computer program on a computer-readable storage medium, involves the steps of retrieving at least one reference position (P1, P1′); and extracting the sequence of positions solely by matching information obtained from each of the images with a corresponding pattern reference area (MA), which represents a known subset of the position-coding pattern with a given, direct or indirect, spatial relation to the reference position(s).
摘要翻译：在用于位置解码的装置中的方法，用于从由传感器记录的位置编码图案的图像序列中提取位置序列。可以体现为计算机可读存储介质上的计算机程序的方法包括检索至少一个参考位置（P 1，P 1'）的步骤; 并且仅通过将从每个图像获得的信息匹配的信息与相应的模式参考区域（MA）提取位置序列，该对应模式参考区域（MA）表示具有与参考的给定，直接或间接空间关系的位置编码模式的已知子集职位。

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