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    • 1. 发明授权
    • Determination of a position code
    • 确定位置代码
    • US06548768B1
    • 2003-04-15
    • US09676892
    • 2000-10-02
    • Mats Petter PetterssonTomas Edso
    • Mats Petter PetterssonTomas Edso
    • G06K1106
    • G06K7/14G06F3/0321G06F3/03545G06K7/10722G06K7/1417G06K7/1443G06K7/1456G06K9/22G06K19/06018G06K19/06037G06K2009/226
    • A method and a device for determining a virtual raster of a code pattern consisting of a plurality of marks with associated coordinates mn. Each mark is located at a nominal position but displaced from the nominal position in one of a plurality of directions, depending upon the value of the mark. The nominal positions form raster points gn of the virtual raster, and the raster points are situated on raster lines, which intersect at a first angle. In addition there is a device for determining an initial vector V1,2 on the basis of the coordinates m1, m2 of one or more marks, which initial vector extends approximately between a first and a second adjacent raster point g1, g2. A calculation device determines a second vector V2,3, which forms said angle with the first vector and is the same length as the first vector and extends from the second raster point g2 approximately to a third raster point g3. The mark coordinate m3 which is associated with the third raster point g3 is determined. Subsequently the actual coordinates are calculated for the third raster point on the basis of the third mark's coordinates and its value. The actual coordinates for the third raster point are stored, after which the procedure is repeated taking the second vector as the starting point.
    • 一种用于确定由具有相关联的坐标mn的多个标记组成的代码图案的虚拟光栅的方法和装置。 取决于标记的值,每个标记位于标称位置,但是从多个方向中的一个方向上的标称位置移位。 标称位置形成虚拟光栅的光栅点gn,光栅点位于与第一角度相交的光栅线上。 此外,存在用于基于一个或多个标记的坐标m1,m2确定初始矢量V1,2的装置,该初始矢量大致在第一和第二相邻光栅点g1,g2之间延伸。 计算装置确定第二矢量V2,3,其与第一矢量形成所述角度并且与第一矢量具有相同的长度,并且从第二光栅点g2大致延伸到第三光栅点g3。 确定与第三光栅点g3相关联的标记坐标m3。 随后,基于第三标记的坐标及其值来计算第三光栅点的实际坐标。 存储第三光栅点的实际坐标,之后以第二个矢量为起点重复该过程。
    • 6. 发明授权
    • Dual mode digitizer tablet system
    • 双模数字转换器平板电脑系统
    • US06180894B2
    • 2001-01-30
    • US09074640
    • 1998-05-07
    • Ching-Chuan ChaoChia-Jui Yeh
    • Ching-Chuan ChaoChia-Jui Yeh
    • G06K1106
    • G06F3/038G06F3/046G06F2203/0384
    • An apparatus for automatically changing the operation of a dual-mode digitizer tablet system. The system comprises a cordless pen device generating an electromagnetic wave of a variable frequency and a cordless mouse device generating an electromagnetic wave of a different frequency. The cordless pen device operates in an absolute mode and the cordless mouse device operates in a relative movement mode. The apparatus comprises a detection loop sensing circuit for detecting electromagnetic waves and a signal processing circuit for extracting the signal of either the pen device or the mouse device. The extracted signal is rectified and digitized for determining the position of the cordless pointing device by a micro-controller. A frequency counter determines the frequency of the detected signal. By detecting and determining the frequency of the electromagnetic wave received in the tablet system, the operation mode is adjusted automatically.
    • 一种用于自动改变双模数字转换器平板电脑系统的操作的装置。 该系统包括产生可变频率的电磁波的无绳电话装置和产生不同频率的电磁波的无绳鼠标装置。 无绳笔装置以绝对模式工作,无绳鼠标装置以相对移动模式工作。 该装置包括用于检测电磁波的检测环检测电路和用于提取笔装置或鼠标装置的信号的信号处理电路。 提取的信号被整流和数字化,以便通过微控制器确定无绳指示装置的位置。 频率计数器确定检测到的信号的频率。 通过检测并确定在平板电脑系统中接收的电磁波的频率,自动调整操作模式。
    • 8. 发明授权
    • Coordinate input apparatus operable with conductor such as finger and non-conductor such as pen
    • 坐标输入装置可与诸如手指和非导体(诸如笔)的导体一起操作
    • US06535203B2
    • 2003-03-18
    • US09794944
    • 2001-02-26
    • Hiroshi ShigetakaHideto Matsufusa
    • Hiroshi ShigetakaHideto Matsufusa
    • G06K1106
    • G06F3/044
    • A coordinate input apparatus operable with any one of a conductor such as a finger and a non-conductor such as a pen without damaged operability is provided. Furthermore, in order to miniaturize the apparatus and reduce the thickness thereof, in an electrostatic capacitive detection section having a resin sheet and a resist film, a pressure-sensing detection section having a resin sheet, and a substrate, through-holes penetrating from the surface of the resist film to the backside of the substrate are formed. By filling these through-holes with a conductive material, an X-direction-detection electrode is connected to the substrate while an Y-direction-detection electrode is connected to the substrate.
    • 提供了一种坐标输入装置,其可以使用诸如手指等导体和非导体(例如笔)中的任何一个而不损坏可操作性。 此外,为了使设备小型化并减小其厚度,在具有树脂片和抗蚀剂膜的静电电容检测部中,具有树脂片的压力感测检测部和基板,从 形成抗蚀剂膜到基板的背面的表面。 通过用导电材料填充这些通孔,将X方向检测电极连接到基板,同时将Y方向检测电极连接到基板。