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    • 17. 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。