专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0271276A2 Touchscreen input validation system 失效
标题翻译： EingabegültigkeitsbestätigungsverfahrenfüreineberührungsaktiveAnzeige。
公开(公告)号：EP0271276A2
公开(公告)日：1988-06-15
申请号：EP87310580.3
申请日：1987-12-01
申请人： TEKTRONIX, INC.
发明人： Tallman, James Larry , Sherbeck, Terry Gene
IPC分类号： G01R13/34 , G06K11/06 , G06F3/033 , G01R13/22
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的触摸屏设备，并且产生一组输出信号，每个输出信号指示相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，计算机读取所存储的扫描数据，确定数据是否指示水平和垂直光束是撞击物体，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恒定，并且如果执行响应于参数值的例程。

2. 发明授权

EP0271276B1 Touchscreen input validation system 失效
标题翻译：触摸输入验证系统
公开(公告)号：EP0271276B1
公开(公告)日：1993-10-06
申请号：EP87310580.3
申请日：1987-12-01
申请人： TEKTRONIX, INC.
发明人： Tallman, James Larry , Sherbeck, Terry Gene
IPC分类号： G01R13/34 , G06K11/06 , G06F3/033 , G01R13/22
CPC分类号： G06F3/033 , G01R13/22 , G01R13/347

3. 发明公开

EP0271276A3 Touchscreen input validation system 失效
标题翻译：触摸输入验证系统
公开(公告)号：EP0271276A3
公开(公告)日：1989-11-02
申请号：EP87310580.3
申请日：1987-12-01
申请人： TEKTRONIX, INC.
发明人： Tallman, James Larry , Sherbeck, Terry Gene
IPC分类号： G01R13/34 , G06K11/06 , G06F3/033 , G01R13/22
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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式