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1. 发明授权

US5025411A Method which provides debounced inputs from a touch screen panel by waiting until each x and y coordinates stop altering 失效
标题翻译：通过等待直到每个x和y坐标停止改变来提供来自触摸屏面板的去抖动输入的方法
公开(公告)号：US5025411A
公开(公告)日：1991-06-18
申请号：US939645
申请日：1986-12-08
申请人： James L. Tallman , Terry G. Sherbeck
发明人： James L. Tallman , Terry G. Sherbeck
IPC分类号： G06F3/042 , G01R13/22 , G01R13/34 , G06F3/033 , G06F3/041 , G06F3/048
CPC分类号： G06F3/033 , G01R13/22 , G01R13/347
摘要： A system for providing input to a computer comprises a touchscreen apparatus for generating a grid of horizontal and vertical light beams and producing a set of output signals, each indicating whether a corresponding one of the light beams strikes an object. A scanning device repeatedly scans the states of the output signals, stores data representing the last scanned state of each output signal, and transmits a first interrupt signal to the computer whenever the state of any one of the output signals changes. In response to the interrupt signal, the computer reads the stored scan data, determines whether the data indicates that a horizontal and a vertical light beam is striking an object, and if so, sets parameter values to identify the horizontal and vertical light beams. In response to a second interrupt signal periodically generated by a clock, the computer determines whether or not the parameter values have remained constant for a predetermined period, and if so executes a routine responsive to the parameter values.
摘要翻译：用于向计算机提供输入的系统包括用于产生水平和垂直光束的网格并产生一组输出信号的触摸屏设备，每个输出信号指示对应的一个光束是否撞击物体。扫描装置重复地扫描输出信号的状态，存储表示每个输出信号的最后扫描状态的数据，并且每当输出信号中的任一个的状态改变时，将第一中断信号发送到计算机。响应于中断信号，计算机读取存储的扫描数据，确定数据是指水平和垂直光束是否被击中物体，如果是，则设置参数值以识别水平和垂直光束。响应于由时钟周期性地产生的第二中断信号，计算机确定参数值是否在预定时间段内保持不变，并且如果执行响应于参数值的例程。

2. 发明授权

US4766425A Waveform selection by touch 失效
标题翻译：通过触摸波形选择
公开(公告)号：US4766425A
公开(公告)日：1988-08-23
申请号：US944304
申请日：1986-12-19
申请人： James L. Tallman , Terry G. Sherbeck , Beverlea J. Kramlich
发明人： James L. Tallman , Terry G. Sherbeck , Beverlea J. Kramlich
IPC分类号： G01R13/20 , G06F3/033 , G06F3/041 , G06F3/042 , G06F3/048 , G09G1/00
CPC分类号： G06F3/033
摘要： For an oscilloscope capable of simultaneously displaying a plurality of waveforms on a screen and capable of performing operations with respect to a selected one of the displayed waveforms, a method and apparatus for permitting an operator to select a waveform. A touchscreen mechanism provides input signals to the oscilloscope indicating when and where an operator touches the surface of the screen and a microcomputer within the oscilloscope determines from data controlling the display of each waveform and from the data provided by the touchscreen whether the operator is touching any portion of a displayed waveform. If so, the microcomputer assumes that the operator has selected the waveform touched and reconfigures oscilloscope operation such that operations are performed with respect to the waveform touched by the operator.

3. 发明授权

US4703316A Touch panel input apparatus 失效
标题翻译：触摸面板输入设备
公开(公告)号：US4703316A
公开(公告)日：1987-10-27
申请号：US662319
申请日：1984-10-18
申请人： Terry G. Sherbeck
发明人： Terry G. Sherbeck
IPC分类号： G06F3/042 , G06F3/033 , G09G1/16
CPC分类号： G06F3/0428 , G06F3/0421
摘要： A touch panel input apparatus including two arrays of light detectors placed on the opposite sides of the display device screen and four light sources, each of which is placed at a corner and at angle to illuminate at least the entire array of the light detectors on the opposite side. The light detectors are scanned in synchronization with the selection of the light beam sources. A controlling microprocessor has stored in its memory four sets of data, one for each light source, regarding ambient light condition and beam interrupt thresholds for the light detectors. By software, two equations representing a line are determined and solved to obtain a cross point which corresponds to X-Y position of the finger on the screen.
摘要翻译：一种触摸面板输入装置，包括放置在显示装置屏幕的相对侧上的两个光检测器阵列和四个光源，每个光源被放置在角部和角度，以至少照亮所述光检测器的整个阵列对面光束检测器与光束源的选择同步扫描。控制微处理器在其存储器中存储关于光检测器的环境光条件和光束中断阈值的四组数据，每组数据一个用于每个光源。通过软件，确定并解决表示线的两个方程，以获得对应于手指在屏幕上的X-Y位置的交叉点。

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