Writing tip position sensing and processing apparatus
    1.
    发明授权
    Writing tip position sensing and processing apparatus 失效
    书写尖端位置检测和处理装置

    公开(公告)号:US5294792A

    公开(公告)日:1994-03-15

    申请号:US816330

    申请日:1991-12-31

    CPC分类号: G06F3/03545 G06F3/03546

    摘要: A self-contained pen computer is provided that is capable of acquiring data representative of written strokes of the stylus of the pen and then recognizing the symbols associated with these pen strokes, or compacting these strokes. These recognized symbols or compacted strokes are stored in a memory contained in the pen and are transmitted via a transmitter contained in the pen to a host computer.

    摘要翻译: 提供了一种独立的笔式计算机,其能够获取表示笔的笔的书写笔划的数据,然后识别与这些笔画相关联的符号,或压缩这些笔画。 这些识别的符号或压实笔画被存储在笔中包含的存储器中,并通过包含在笔中的发送器传送到主计算机。

    System and method for determining the distance to an energy emitting
object
    2.
    发明授权
    System and method for determining the distance to an energy emitting object 失效
    用于确定到能量发射物体的距离的系统和方法

    公开(公告)号:US5249128A

    公开(公告)日:1993-09-28

    申请号:US614814

    申请日:1990-11-16

    摘要: A method and system for range detection using a passive infrared sensing device (10) is disclosed. The method includes determining a region (35,38) on a moving object, such as an automobile (13, 36, 37), the region (35, 38) having a size characteristic of the object and emitting energy (14) characteristic of the object. The next step is to characterize the region by a plurality of feature points (31, 32, 33, 34) and sense the energy emitting from the feature points. The next step is to calculate the distance between the sensing device (10) and the moving object as a function of the feature points. The method has application in adaptive cruise control for automobiles (13, 36, 37). The method includes the use of perspective projection formulae to determine the distance between the sensing device (10) and the moving object 13, 36, 37). To smooth measurements to each other, one embodiment of the method includes the use of an Euler predictor to integrate measurements across measurement firmness.

    摘要翻译: 公开了一种使用被动红外线感测装置(10)进行范围检测的方法和系统。 该方法包括确定诸如汽车(13,36,37)的运动物体上的区域(35,38),具有物体的尺寸特征的区域(35,38)和发射能量(14)的特征的区域 物体。 下一步是通过多个特征点(31,32,33,34)来表征该区域,并感测从特征点发射的能量。 下一步是根据特征点来计算感测装置(10)和移动物体之间的距离。 该方法适用于汽车的自适应巡航控制(13,36,37)。 该方法包括使用透视投影公式来确定感测装置(10)和移动物体13,36,37之间的距离。 为了相互平滑测量,该方法的一个实施例包括使用欧拉预测器将测量结合在测量坚固度之间。

    Method for passively determining the relative position of a moving
observer with respect to a stationary object
    3.
    发明授权
    Method for passively determining the relative position of a moving observer with respect to a stationary object 失效
    用于被动地确定移动观察者相对于静止物体的相对位置的方法

    公开(公告)号:US4951214A

    公开(公告)日:1990-08-21

    申请号:US356583

    申请日:1989-05-22

    IPC分类号: G06T7/20

    CPC分类号: G06T7/20

    摘要: A method for passive relative ranging between a position of a moving observer and a stationary remote object includes measuring a plurality of angles at the observer's position to the object from a reference direction at selected or arbitrary time intervals. From the measured angles, calculating the current relative location of the observer with respect to the object, using a non-recursive least square technique employing a Moore-Penrose pseudo-matrix-inverse. The technique is carried out in a general or special purpose digital computer by a program using a predetermined number of variables in which products derived from the measured angles are accumulated, without growth in the number or complexity of calculations with an increasing number of measured angles.

    摘要翻译: 一种用于在移动观察者的位置和固定远程物体之间进行被动相对测距的方法包括在选定或任意时间间隔从参考方向测量观察者位置处的多个角度到对象。 从测量的角度,使用采用Moore-Penrose伪矩阵逆的非递归最小二乘法来计算观察者相对于对象的当前相对位置。 该技术在通用或专用数字计算机中通过程序使用预定数量的变量来进行,其中从测量角度导出的乘积被累积,而不增加计算数量或复杂度,并且测量的角度越来越多。