Coordinate input apparatus
    3.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US5253187A

    公开(公告)日:1993-10-12

    申请号:US837695

    申请日:1992-02-19

    IPC分类号: G06F3/033 G06F3/043 G06F15/20

    CPC分类号: G06F3/0433 Y10S367/907

    摘要: 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.

    摘要翻译: 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。

    Coordinate input apparatus
    5.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US5500492A

    公开(公告)日:1996-03-19

    申请号:US327806

    申请日:1994-10-24

    IPC分类号: G06F3/033 G06F3/043 G08C21/00

    CPC分类号: G06F3/0433

    摘要: Disclosed is a coordinate input apparatus for detecting an input vibration from a vibration pen by a vibration sensor provided on a vibration transmitting plate to measure a vibration transmission time to the vibration pen to detect the input coordinates of the vibration pen on the vibration transmitting plate on the basis of the measurement result. The vibration pen is made wireless by incorporating all mechanisms required to generate the vibration. A drive timing for vibration input from the vibration pen and used as a measurement origin of the vibration transmission time is transmitted to a main body for performing the coordinate detection processing by bringing the vibration pen in temporary contact with the main body.

    摘要翻译: 公开了一种坐标输入装置,用于通过设置在振动传递板上的振动传感器来检测来自振动笔的输入振动,以测量到振动笔的振动传播时间,以检测振动传播板上振动笔的输入坐标 测量结果的基础。 振动笔通过并入产生振动所需的所有机构而无线化。 振动笔的振动输入的驱动时刻用作振动传播时间的测量原点,通过使振动笔与主体暂时接触而发送到主体进行坐标检测处理。

    Coordinate input apparatus
    7.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US4980518A

    公开(公告)日:1990-12-25

    申请号:US530480

    申请日:1990-06-01

    IPC分类号: G06F3/033 G06F3/043

    CPC分类号: G06F3/0433

    摘要: A coordinate input apparatus comprises: a vibration pen to generate a vibration; a vibration propagating plate to propagate the vibration generated by the pen by touching the pen to the plate; vibration sensors to detect the vibration propagated to the plate; a supporting member which supports the plate and whose vibration propagating velocity is slower than the plate; a position coordinate calculating circuit to calculate the position coordinates of the pen on the plate on the basis of the detection signals from the sensors; and a display which is provided below the supporting member and displays the calculated coordinates. The plate is made of metal or transparent glass and the supporting membrr is made of a transparent synthetic resin. The supporting member is directly in contact with the plate at a rough surface, its acoustic impedance value is different from the plate, and its vibration attenuation ratio is larger than that of the plate. Since the vibration wave component propagated to the sensors is not influenced by the interference of the vibration propagated in the support member, the coordinates can be accurately detected on the basis of the vibration detection waveforms without distortion.

    Coordinate input apparatus
    10.
    发明授权
    Coordinate input apparatus 失效
    协调输入装置

    公开(公告)号:US5070325A

    公开(公告)日:1991-12-03

    申请号:US324109

    申请日:1989-03-16

    IPC分类号: G06F3/033 G06F3/043

    CPC分类号: G06F3/0433

    摘要: A coordinate input apparatus includes a vibration pen, a vibration transmission plate, a plurality of vibration detecting units, a calculating unit, a memory unit, and a control unit. The calculating unit calculates vibration transmission times from a point designated by the vibration pen to the vibration detecting units, and calculates coordinate values of the designated point of the vibration pen. The memory unit stores the vibration transmission times from a first designated point of the vibration pen on the vibration transmission plate to the vibration detecting units and coordinate values of the first designated point. The control unit performs calculations on the basis of vibration transmission times from a second designated point calculated by the calculating unit to the vibration detecting units, the vibration transmission times from the first designated point and the coordinate values of the first designated point stored in the memory unit, thereby calculating coordinate values of the second designated point.