公开(公告)号：US5484967A

公开(公告)日：1996-01-16

申请号：US128664

申请日：1993-09-30

Applicant: Ryozo Yanagisawa ,  Atsushi Tanaka ,  Yuichiro Yoshimura ,  Kiyoshi Kaneko ,  Katsuyuki Kobayashi ,  Masaki Tokioka

Inventor： Ryozo Yanagisawa ,  Atsushi Tanaka ,  Yuichiro Yoshimura ,  Kiyoshi Kaneko ,  Katsuyuki Kobayashi ,  Masaki Tokioka

IPC: B06B1/00 ,  G06F3/033 ,  G06F3/043 ,  C08C21/00

CPC classification number: G06F3/0433

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5362930A

公开(公告)日：1994-11-08

申请号：US905523

申请日：1992-06-29

Applicant: Yuichiro Yoshimura ,  Atsushi Tanaka ,  Kiyoshi Kaneko ,  Katsuyuki Kobayashi ,  Masaki Tokioka

Inventor： Yuichiro Yoshimura ,  Atsushi Tanaka ,  Kiyoshi Kaneko ,  Katsuyuki Kobayashi ,  Masaki Tokioka

IPC: G06F3/043 ,  G06F3/033 ,  G08C21/00

CPC classification number: G06F3/0433

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5097415A

公开(公告)日：1992-03-17

申请号：US609655

申请日：1990-11-29

Applicant: Yuichiro Yoshimura ,  Atsushi Tanaka ,  Kiyoshi Kaneko

Inventor： Yuichiro Yoshimura ,  Atsushi Tanaka ,  Kiyoshi Kaneko

IPC: G06F3/033 ,  G06F3/043

CPC classification number: G06F3/0433

Abstract: A coordinates input apparatus for detecting coordinates of an instructed position from a vibration progagation time on a vibration propagation plate is provided. This apparatus comprises; a vibration pen to generate a vibration; a vibration propagation plate with which the vibration pen is come into contact and which transmits the vibration; a sensor which is arranged in contact relation with the vibration propagation plate and detects the vibration; a vibration-proof material attached to the periphery of the vibration propagation plate so as to have a width of 1/2 of a wavelength of the elastic wave of the vibration; and an operation controller to calculate the contact position of the vibration pen on the vibration propagation plate from the detection time when the vibration was detected by the sensor. The sensor detects the surface wave of the vibration-proof material. With this apparatus, the coordinates of the instructed point can be accurately detected using the vibration with being hardly influenced by the reflected waves from the periphery of the plate.

Abstract translation: 提供了一种用于从振动传播板上的振动进行时间检测指示位置的坐标的坐标输入装置。 该装置包括： 振动笔产生振动; 与振动笔接触并传递振动的振动传播板; 传感器，其与振动传播板接触地设置并检测振动; 安装在振动传播板的周围的振动材料的宽度为振动弹性波的1/2的宽度; 以及操作控制器，用于当由传感器检测到振动时的检测时间，计算振动笔在振动传播板上的接触位置。 传感器检测防振材料的表面波。 利用该装置，可以使用几乎不受来自板的周边的反射波的影响的振动来精确地检测指示点的坐标。