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    • 3. 发明授权
    • Coordinate input apparatus
    • 坐标输入装置
    • US5253187A
    • 1993-10-12
    • US837695
    • 1992-02-19
    • Kiyoshi KanekoKatsuyuki KobayashiTakeshi KamonoRyozo YanagisawaShinnosuke TaniishiYuichiro YoshimuraAtsushi Tanaka
    • Kiyoshi KanekoKatsuyuki KobayashiTakeshi KamonoRyozo YanagisawaShinnosuke TaniishiYuichiro YoshimuraAtsushi Tanaka
    • G06F3/033G06F3/043G06F15/20
    • G06F3/0433Y10S367/907
    • A coordinate input apparatus in which a vibration which was input by a vibration input pen is detected by vibration sensors attached to a vibration propagating plate such as a transparent glass plate or the like and the coordinates of the position of the pen on the plate are detected. The apparatus includes an envelope output circuit to output envelope signals of detection signals of the sensors; a filter circuit for filtering the envelope signals; a gate signal output circuit for detecting a portion, exceeding a predetermined threshold value, of the envelope signal output from the filter circuit and for outputting a gate signal; a first detector for detecting the peak of the envelope signal output from the envelope output circuit and for detecting the envelope signal by using the peak as a reference; a second detector for detecting a phase signal of the detection signal by using the leading edge of the phase signal as a reference in the period of time during which the gate signal output from the gate signal is output circuit; and a calculating circuit to calculate the position coordinates of the input pen on the basis of the propagation time of the envelope signal detected by the first detector and the propagation time of the phase signal detected by the second detector.
    • 检测由振动输入笔输入的振动的坐标输入装置,由安装在振动传播板(例如透明玻璃板等)上的振动传感器以及笔的位置坐标在板上被检测 。 该装置包括一个信封输出电路,用于输出传感器检测信号的包络信号; 用于对包络信号进行滤波的滤波电路; 门信号输出电路,用于检测从滤波器电路输出的包络信号的超过预定阈值的一部分,并输出门信号; 第一检测器,用于检测从包络输出电路输出的包络信号的峰值,并通过使用峰值作为参考来检测包络信号; 第二检测器,用于在从栅极信号输出的栅极信号输出电路的时间周期内通过使用相位信号的前沿作为参考来检测检测信号的相位信号; 以及计算电路,其基于由第一检测器检测到的包络信号的传播时间和由第二检测器检测的相位信号的传播时间来计算输入笔的位置坐标。
    • 7. 发明授权
    • Method and apparatus for inputting coordinates
    • 输入坐标的方法和装置
    • US5352856A
    • 1994-10-04
    • US779822
    • 1991-10-21
    • Atsushi TanakaShinnoskue TaniishiYuichiro YoshimuraKiyoshi KanekoRyozo YanagisawaKatsuyuki KobayashiTakeshi Kamono
    • Atsushi TanakaShinnoskue TaniishiYuichiro YoshimuraKiyoshi KanekoRyozo YanagisawaKatsuyuki KobayashiTakeshi Kamono
    • G06K11/06G06F3/033G06F3/041G06F3/043G06F3/048G08C21/00
    • G06F3/0433Y10S367/907
    • A coordinates input apparatus for detecting coordinate values of an arbitrary point by indicating the arbitrary point on a vibration transmission plate by a vibration input pen for generating a vibration, comprises: a plurality of sensors, arranged at predetermined positions in the vibration transmission plate, for detecting the vibration generated by the indication by the vibration input pen, for converting the vibration into electric signals, and for outputting; a measuring circuit to measure delay times from a time point when the arbitrary point has been indicated by the vibration input pen until time points when the electric signals are detected; an obtaining circuit to obtain origin correction data from a plurality of points on the vibration transmission plate; a memory to store the origin correction data; and a processor for reading out the origin correction data from the memory, for correcting the coordinate values on the basis of the delay times measured by the measuring circuit and the origin correction data, and for calculating the coordinate values. The processor has a selector to select the origin correction data of the optimum point so as to execute the optimum coordinate value correction from the origin correction data obtained from the plurality of points and stored in the memory.
    • 一种坐标输入装置,用于通过用于产生振动的振动输入笔指示振动传播板上的任意点来检测任意点的坐标值,包括:多个传感器,布置在振动传播板中的预定位置,用于 通过振动输入笔检测由指示产生的振动,将振动转换成电信号并输出​​; 测量电路,用于测量从振动输入笔指示任意点的时间点到检测到电信号的时间点之间的延迟时间; 获取电路,用于从所述振动传播板上的多个点获得原点校正数据; 用于存储原点校正数据的存储器; 以及处理器,用于从存储器读出原点校正数据,用于基于由测量电路测量的延迟时间和原点校正数据来校正坐标值,并用于计算坐标值。 处理器具有选择器,用于选择最佳点的原点校正数据,以便从从多个点获得的原始校正数据执行最佳坐标值校正并存储在存储器中。