High resolution system for sensing spatial coordinates
    1.
    发明授权
    High resolution system for sensing spatial coordinates 失效
    用于感测空间坐标的高分辨率系统

    公开(公告)号:US5317502A

    公开(公告)日:1994-05-31

    申请号:US996734

    申请日:1992-12-24

    摘要: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface. In general, the system of the present invention can ascertain the generalized n-tuple position vector of the object with respect to each of a plurality of generalized, energized conductive surfaces. In any of the foregoing forms, the energized conductive surfaces can be transparent. The system described improves the precision and accuracy of the location of the selected point and hence the precision and accuracy of the spatial coordinates calculated by the system for display. The improvement in system performance is the result of innovations in fundamental design concepts utilized throughout the system.

    摘要翻译: 描述了一种改进的高分辨率方法和装置,用于感测和确定可移动物体相对于通电导电表面的空间坐标。 相对于与第三正交尺寸无关的二维坐标系精确地测量物体的坐标,从而避免由于第三正交维度中的物体位置的变化引起的显着的测量误差。 该系统还确定该第三维度中物体的坐标位置,然后可以将其用作系统中的独立控制变量。 此外,该系统可以容纳多个通电的导电表面,物体可以在其上定位,并且可以确定物体相对于任何这样的表面的空间坐标。 通常,本发明的系统可以相对于多个通用的通电导电表面中的每一个来确定物体的广义n元组位置矢量。 在任何上述形式中,通电的导电表面可以是透明的。 所描述的系统提高了所选点的位置的精度和精度,并因此提高了由系统显示的空间坐标的精度和精度。 系统性能的提高是整个系统中使用的基础设计概念的创新的结果。

    High resolution system for sensing spatial coordinates
    2.
    发明授权
    High resolution system for sensing spatial coordinates 失效
    用于感测空间坐标的高分辨率系统

    公开(公告)号:US5251123A

    公开(公告)日:1993-10-05

    申请号:US746285

    申请日:1991-08-13

    摘要: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface. In general, the system of the present invention can ascertain the generalized n-tuple position vector of the object with respect to each of a plurality of generalized, energized conductive surfaces. In any of the foregoing forms, the energized conductive surfaces can be transparent. The system described improves the precision and accuracy of the location of the selected point and hence the precision and accuracy of the spatial coordinates calculated by the system for display. The improvement in system performance is the result of innovations in fundamental design concepts utilized throughout the system.

    摘要翻译: 描述了一种改进的高分辨率方法和装置,用于感测和确定可移动物体相对于通电导电表面的空间坐标。 相对于与第三正交尺寸无关的二维坐标系精确地测量物体的坐标,从而避免由于第三正交维度中的物体位置的变化引起的显着的测量误差。 该系统还确定该第三维度中物体的坐标位置,然后可以将其用作系统中的独立控制变量。 此外,该系统可以容纳多个通电的导电表面,物体可以在其上定位,并且可以确定物体相对于任何这样的表面的空间坐标。 通常,本发明的系统可以相对于多个通用的通电导电表面中的每一个来确定物体的广义n元组位置矢量。 在任何上述形式中,通电的导电表面可以是透明的。 所描述的系统提高了所选点的位置的精度和精度,并因此提高了由系统显示的空间坐标的精度和精度。 系统性能的提高是整个系统中使用的基础设计概念的创新的结果。

    Video compression/expansion system
    5.
    发明授权
    Video compression/expansion system 失效
    视频压缩/扩展系统

    公开(公告)号:US4654484A

    公开(公告)日:1987-03-31

    申请号:US515762

    申请日:1983-07-21

    CPC分类号: H04N11/042 H04N7/24

    摘要: An improved apparatus for rapidly compressing, expanding, and displaying broad band information which is transmitted over a narrow band communications channel. In the preferred embodiment, a video image is cyclically assembled in low resolution and high resolution phases from digitized data representing gray level intensity for individual pixels which have been grouped into pixel. During the initial cycle of the low resolution phase, a representative sample of cell intensity values is transmitted by a sending station to a receiving station according to a video compression routine. The receiving station then uses a video expansion routine to calculate an intensity value for those pixels whose intensity values were not transmitted and displays an initial image. This image is refined during subsequent low-resolution cycles by additional transmissions from the sending station which replace the calculated cell intensity values with an actual or better approximation value for that pixel. During the high resolution phase, an error determination routine or external input from a viewer selects those pixels containing the greatest deviation in intensity levels from the input video image. The error compression and expansion routines substitute a plurality of individual pixel intensity values for previously calculated intensity values. The present invention also discloses an apparatus for allowing color capable stations to send or receive color transmissions while retaining the capability to interact with noncolor stations. Color data is compressed and interleaved with black and white data by a color capable sending station and subsequently separated and expanded by a color capable receiving station.

    摘要翻译: 一种用于快速压缩,扩展和显示通过窄带通信信道发送的宽带信息的改进的装置。 在优选实施例中,视频图像以低分辨率和高分辨率相位从表示已被分组成像素的各个像素的灰度级强度的数字化数据循环地组装。 在低分辨率相位的初始周期期间,根据视频压缩程序,发送站将传输单元强度值的代表性样本发送到接收站。 然后,接收站使用视频展开程序来计算其强度值未被发送的那些像素的强度值并显示初始图像。 在随后的低分辨率周期期间,通过来自发送站的附加传输来对该图像进行精细化,该发送站用该像素的实际或更好的近似值代替计算出的单元格强度值。 在高分辨率阶段期间,来自观众的错误确定例程或外部输入从输入视频图像中选择包含强度级别最大偏差的那些像素。 误差压缩和扩展例程将多个单独的像素强度值替换为先前计算的强度值。 本发明还公开了一种用于允许有色站的发送或接收彩色传输同时保持与非彩色电台交互的能力的装置。 彩色数据由有色能力的发送站压缩并与黑白数据进行交织,随后由有能力的接收站分离和扩展。

    System for sensing spatial coordinates
    6.
    发明授权
    System for sensing spatial coordinates 失效
    感应空间坐标的系统

    公开(公告)号:US4603231A

    公开(公告)日:1986-07-29

    申请号:US480652

    申请日:1983-03-31

    IPC分类号: G06F3/045 G06F3/038 G08C21/00

    CPC分类号: G06F3/045 G06F3/0383

    摘要: A system for sensing the spatial position of a moveable object with respect to an energized conductive surface whereby the spatial coordinates of the object are determined. The system provides a means of accurately measuring the coordinates of the object with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object's position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface. In general, the system of the present invention can ascertain the generalized n-tuple position vector of the object with respect to each of a plurality of generalized, energized conductive surfaces. In any of the foregoing forms, the energized conductive surfaces can be transparent.

    摘要翻译: 一种用于感测可移动物体相对于通电导电表面的空间位置的系统,由此确定物体的空间坐标。 该系统提供了一种能够相对于与第三正交尺寸无关的二维坐标系精确地测量物体的坐标的方法,从而避免由于第三正交维度中物体的位置的变化引起的显着的测量误差。 该系统还确定该第三维度中物体的坐标位置,然后可以将其用作系统中的独立控制变量。 此外,该系统可以容纳多个通电的导电表面,物体可以在其上定位,并且可以确定物体相对于任何这样的表面的空间坐标。 通常,本发明的系统可以相对于多个通用的通电导电表面中的每一个来确定物体的广义n元组位置矢量。 在任何上述形式中,通电的导电表面可以是透明的。

    Apparatus and method for measuring color
    7.
    发明授权
    Apparatus and method for measuring color 失效
    用于测量颜色的装置和方法

    公开(公告)号:US08159666B2

    公开(公告)日:2012-04-17

    申请号:US12218339

    申请日:2008-07-14

    IPC分类号: G01J3/28 G01J3/51

    摘要: Methods in a spectral measurement apparatus are disclosed. Light is received with a plurality of sensors. Each sensor generates an output signal having a frequency proportional to an intensity of light received by the sensor. First, second and third signals are generated each having a frequency proportional to an intensity of light received by a sensor of a wavelength or spectral band. A spectral characteristic of the received light is determined based on at least the first, second and third signals, which are are coupled to a processing element and input in parallel. The spectral characteristic is determined based on measuring a frequency or period of the at least first, second and third signals. Spectral data based on the determined spectral characteristic is generated by the processing element and displayed on a display device for perception by a viewer or transmitted to a data interface for transmission to an electronic device external to the spectral measurement apparatus.

    摘要翻译: 公开了光谱测量装置中的方法。 光被多个传感器接收。 每个传感器产生具有与由传感器接收的光的强度成比例的频率的输出信号。 首先,产生具有与由波长或光谱带的传感器接收的光的强度成比例的频率的第二和第三信号。 至少基于耦合到处理元件并且并行输入的第一,第二和第三信号来确定接收光的光谱特性。 基于测量至少第一,第二和第三信号的频率或周期来确定频谱特性。 基于所确定的光谱特性的光谱数据由处理元件产生并显示在显示设备上,用于感知观看者或发送到数据接口以传输到光谱测量设备外部的电子设备。