Coordinates input apparatus
    11.
    发明授权
    Coordinates input apparatus 失效
    坐标输入装置

    公开(公告)号:US5726686A

    公开(公告)日:1998-03-10

    申请号:US131914

    申请日:1993-10-04

    CPC分类号: G06F3/0433

    摘要: There is provided a coordinates input apparatus in which a vibration input from a vibration pen having a piezoelectric transducer is detected by a plurality of vibration sensors attached to a vibration propagating plates such as an input tablet and the coordinates of this pen on the plate are detected. The tip of the vibration input pen is made of a material of a resin of the polyamideimide system such as thermoplastic polyamideimide or aromatic polyamideimide. With this material, a desired image can be smoothly input to the input tablet without scratching the glass surface thereof and the accurate coordinates can be detected.

    摘要翻译: 提供了一种坐标输入装置,其中通过附接到诸如输入图形输入板的振动传播板的多个振动传感器来检测来自具有压电换能器的振动笔的振动输入,并且检测该笔在该板上的坐标 。 振动输入笔的尖端由聚酰胺酰亚胺体系树脂的材料制成,如热塑性聚酰胺酰亚胺或芳族聚酰胺酰亚胺。 利用该材料,可以将期望的图像平滑地输入到输入图形输入板而不会刮擦其玻璃表面,并且可以检测精确的坐标。

    Coordinate input apparatus
    12.
    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.

    Coordinates input apparatus
    13.
    发明授权
    Coordinates input apparatus 失效
    坐标输入装置

    公开(公告)号:US4931965A

    公开(公告)日:1990-06-05

    申请号:US67546

    申请日:1987-06-29

    IPC分类号: G06F3/033 G06F3/043

    CPC分类号: G06F3/0433 Y10S367/907

    摘要: A coordinates input apparatus, for example, a digitizer, has a vibration propagation medium such as a transparent glass plate for allowing a vibration to propagate therethrough; an input pen for applying vibration to the vibration propagation medium; a vibration detector for detecting vibration applied by the input pen; an envelope output device for producing an envelope signal representing the envelope of the vibration detected by the vibration detector; a differentiator for conducting a differentiation of the envelope signal produced by the envelope output device so as to determine the peak; a controller adapted for determining, as the time of arrival of the vibration, a zero-cross point of the vibration that is located in the vicinity of a zero-cross point of the signal from the differentiator; and a computing device for computing the distance between the input pen and the vibration detector from the time determined by the controller.

    Coordinates input apparatus
    14.
    发明授权
    Coordinates input apparatus 失效
    坐标输入装置

    公开(公告)号:US4886943A

    公开(公告)日:1989-12-12

    申请号:US299440

    申请日:1989-01-23

    摘要: There is provided a coordinates input apparatus for detecting the coordinates of a point indicated by an instruction pen on a vibration transmitting plate made of a transparent tablet on the basis of the vibration transmission times on this plate. This apparatus comprises: a pen as vibration generating means for generating a vibration; a tablet as a vibration transmitting plate to transmit the vibration generated by the pen; vibration sensors which are arranged on the tablet and detect at a plurality of positions the vibrations transmitted by making the pen come into contact with the tablet; a microcomputer for obtaining the vibration transmission distances from the vibration transmission times of the vibrations detected by the sensors and for calculating the coordinate point on the tablet with which the pen is come into contact; an output device to output the coordinate point calculated by the microcomputer; an erroneous detection discriminating circuit to discriminate whether the coordinate point calculated is the erroneously detected coordinate point or not; and a controller for allowing a correction point calculating means to calculate and output a correction point in place of the erroneously detected coordinate point.

    摘要翻译: 提供了一种坐标输入装置,用于基于在该板上的振动传播时间来检测由透明片形成的振动传递板上的由指示笔指示的点的坐标。 该装置包括:用于产生振动的笔作为振动产生装置; 作为振动传递板的片剂,用于传递由钢笔产生的振动; 振动传感器布置在平板电脑上,并在多个位置检测通过使笔与片剂接触而传递的振动; 用于获得由传感器检测到的振动的振动传播时间的振动传播距离和用于计算与笔接触的片剂上的坐标点的微型计算机; 用于输出微机计算出的坐标点的输出装置; 一个错误检测鉴别电路,用于鉴别所计算的坐标点是否是错误检测的坐标点; 以及控制器,用于允许校正点计算装置计算并输出校正点以代替错误检测的坐标点。

    Coordinate input apparatus, vibration sensing device and method of
evaluating same
    16.
    发明授权
    Coordinate input apparatus, vibration sensing device and method of evaluating same 失效
    坐标输入装置,振动传感装置及其评估方法

    公开(公告)号:US5570299A

    公开(公告)日:1996-10-29

    申请号:US112253

    申请日:1993-08-26

    CPC分类号: G06F3/0433

    摘要: Vibration applied to a tablet is sensed by a sensor provided on the tablet and a time delay from generation of the vibration to the sensing thereof is measured, whereby distance from the vibration source to the sensor can be measured. If the vicinity of the leading edge of the envelope of registration is sensed when sensing the vibration, the effects of reflected waves from the periphery of the tablet are reduced. To this end, the envelope is differentiated to detect an inflection point. The peak gain frequency of the differentiating circuit is greater than the frequency of vibration generated by the vibration source. As a result, the phase of the output signal produced by the differentiating circuit is advanced by about .pi./2 with respect to the phase of the input signal, thereby making it possible to sense vibration more quickly.

    摘要翻译: 通过设置在平板电脑上的传感器来感测施加到片剂的振动,并且测量从产生振动到其感测的时间延迟,由此可以测量从振动源到传感器的距离。 如果在感测到振动时感测到配准的信封的前缘附近,则减少了来自片剂周边的反射波的影响。 为此,包络被区分以检测拐点。 微分电路的峰值增益频率大于振动源产生的振动频率。 结果,由微分电路产生的输出信号的相位相对于输入信号的相位提前约π/ 2,从而使得可以更快地感测振动。

    Coordinate input apparatus
    17.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US5484967A

    公开(公告)日:1996-01-16

    申请号:US128664

    申请日:1993-09-30

    CPC分类号: G06F3/0433

    摘要: Some components of a vibration input to an input guarantee region on a vibration transmission plate directly reach a vibration sensor, but some other components are reflected by the end portion of the vibration transmission plate, and then reach the vibration sensor. A vibration suppressor is attached to a peripheral edge of the vibration transmission plate, and is located along the path of the vibration reflected by the end portion of the vibration transmission plate to the vibration sensor. Since the vibration sensor is attached to a corner portion of the vibration transmission plate where no vibration suppressor is attached, a decrease in coordinate detection precision caused by reflected waves can be suppressed, and a compact apparatus can be realized.

    摘要翻译: 振动传输板上的输入保证区域的振动输入的一些部件直接到达振动传感器,但是一些其它部件被振动传递板的端部反射,然后到达振动传感器。 振动传播板的周边部安装有振动抑制器,沿着振动传递板的端部反射的振动路径位于振动传感器的位置。 由于振动传感器安装在没有安装振动抑制器的振动传播板的角部,因此可以抑制由反射波引起的坐标检测精度的降低,并且可以实现紧凑的装置。

    Coordinate input apparatus and method
    18.
    发明授权
    Coordinate input apparatus and method 失效
    坐标输入装置和方法

    公开(公告)号:US5539160A

    公开(公告)日:1996-07-23

    申请号:US458459

    申请日:1995-06-02

    CPC分类号: G06F3/0433 G06F3/03545

    摘要: Oscillation applied to a tablet is sensed by a sensor on the tablet and a time delay from generation of the oscillation to the sensing thereof is measured, whereby distance from the oscillation source to the sensor can be measured. If this distance is measured for each of a plurality of different sensors, the position of the oscillation source on the tablet can be determined. The measured delay time includes not only time for transmission through the tablet but also an error. Accordingly, the delay time between the oscillation source and a sensor is not used as is, one of the sensors is adopted as a reference sensor and a difference in delay time between this sensor and the oscillation source is used to measure the distance between the oscillation source and each sensor. As a consequence, errors attributable to respective sensors are canceled out so that measurement precision is improved.

    摘要翻译: 通过片上的传感器检测施加到片剂的振荡,并且测量从产生振荡到其感测的时间延迟,由此可以测量从振荡源到传感器的距离。 如果对于多个不同传感器中的每一个测量该距离,则可以确定振动源在平板电脑上的位置。 测量的延迟时间不仅包括通过平板电脑传输的时间,还包括错误。 因此,振荡源和传感器之间的延迟时间不被直接使用,传感器之一被用作参考传感器,并且使用该传感器和振荡源之间的延迟时间差来测量振荡源和振荡器之间的距离 源和每个传感器。 结果,抵消了各个传感器的错误,从而提高了测量精度。

    Coordinate input apparatus
    19.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US5736979A

    公开(公告)日:1998-04-07

    申请号:US355437

    申请日:1994-12-13

    IPC分类号: G06F3/043 G06F3/033 G09G5/00

    CPC分类号: G06F3/0433

    摘要: Disclosed is a coordinate input apparatus including a vibrating input pen 3, a piezoelectric element 4 in the pen 3, a vibration transfer plate 8 and vibration sensors 6 provided around the vibration transfer plate 8. The vibrator 4 is driven by a vibrator driving circuit 2 to generate a vibration, which is transmitted to vibration transfer plate 8. The apparatus is capable of calculating coordinate thereon accurately with phase information of detected signal waveform.

    摘要翻译: 公开了一种坐标输入装置,包括振动输入笔3,笔3中的压电元件4,振动传递板8和设置在振动传递板8周围的振动传感器6.振动器4由振动器驱动电路2 以产生传递到振动传递板8的振动。该装置能够通过检测信号波形的相位信息精确地计算坐标。

    Coordinate input apparatus
    20.
    发明授权
    Coordinate input apparatus 失效
    坐标输入装置

    公开(公告)号:US5362930A

    公开(公告)日:1994-11-08

    申请号:US905523

    申请日:1992-06-29

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

    CPC分类号: G06F3/0433

    摘要: A coordinate input apparatus according to the present invention eliminates distortion caused by interference of a asymmetrical plate wave with an asymmetrical plate wave from the vibrations which are detected after they have been propagated in a vibration transmitting member and performs a highly accurate position coordinate detection. The vibrations of a pen which is brought into contact with the vibration transmitting member are detected by sensors provided on both the front and rear surfaces of the vibration transmitting member to determine a coordinate of a position where the vibrating pen has been brought into contact. At that time, the vibration sensors mounted on the front and rear of the vibration transmitting member in an opposed relation detect vibrations on the two surfaces of the transmitting member. The signals which are detected by each pair of front and rear sensors represent vibrations in which the asymmetrical plate waves having the same phase and the 180.degree. out-of-phase asymmetrical plate waves are superimposed on top of one another. The signals of the two sensors are input to a differential circuit. A resultant differential signal is input to a signal waveform detecting circuit. Since the differential signal is a signal in which the asymmetrical waves are cancelled with each other and in which the asymmetrical waves are amplified by twice, reduction in the vibration detection accuracy which is caused by distortion of waveforms can be prevented.

    摘要翻译: 根据本发明的坐标输入装置消除了由不对称板波与由振动传递构件传播后检测到的振动的不对称板波的干扰引起的失真,并执行高精度的位置坐标检测。 通过设置在振动传递构件的前表面和后表面上的传感器来检测与振动传递构件接触的笔的振动,以确定振动笔已经接触的位置的坐标。 此时,以相对的关系安装在振动传递部件的前后的振动传感器检测传递部件的两个表面上的振动。 由每对前后传感器检测到的信号表示振动,其中具有相同相位的不对称板波和180°异相不对称平板波叠加在彼此之上。 两个传感器的信号被输入到差分电路。 得到的差分信号被输入到信号波形检测电路。 由于差分信号是不对称波相互消除并且不对称波被放大两倍的信号,所以可以防止由波形失真引起的振动检测精度的降低。