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    • 4. 发明授权
    • Coordinate input apparatus and its control method
    • 坐标输入装置及其控制方法
    • US06225986B1
    • 2001-05-01
    • US09000814
    • 1997-12-30
    • Hajime SatoAtsushi TanakaYuichiro YoshimuraRyozo YanagisawaKatsuyuki Kobayashi
    • Hajime SatoAtsushi TanakaYuichiro YoshimuraRyozo YanagisawaKatsuyuki Kobayashi
    • G09G500
    • G06F3/0433
    • A coordinate input apparatus having a stable and good input sense irrespective of different input conditions such as a vibration input position, a pen pressure and a pen angle. The coordinate input apparatus acquires an input coordinate in accordance with a delay time required for vibration input from a vibration input pen to a vibration propagation plate to reach a vibration sensor. A controller of the apparatus drives the vibration input pen at a first drive level. A window signal generator of the apparatus generates a window signal indicating that a significant signal was detected, when the level of an envelope detected from a signal supplied from the vibration sensor exceeds a detection threshold value. In accordance with the window signal, delay times tp and tg are acquired. A level discriminator of the apparatus judges whether the level of the envelope exceeds a discrimination threshold value. If it is judged that the level exceeds the discrimination threshold value, the controller drives the vibration input pen at a second drive level lower than the first drive level to acquire the delay times tp and tg.
    • 一种坐标输入装置,具有稳定且良好的输入感应,而不管诸如振动输入位置,笔压力和笔角度的输入条件如何。 坐标输入装置根据从振动输入笔到振动传播板的振动输入所需的延迟时间来获取输入坐标,以到达振动传感器。 该装置的控制器以第一驱动电平驱动振动输入笔。 当根据从振动传感器提供的信号检测到的包络的电平超过检测阈值时,装置的窗口信号发生器产生指示检测到有效信号的窗口信号。 根据窗口信号,获取延迟时间tp和tg。 设备的电平鉴别器判断信封的电平是否超过鉴别阈值。 如果判断出电平超过判定阈值,则控制器将振动输入笔驱动到低于第一驱动电平的第二驱动电平以获取延迟时间tp和tg。
    • 8. 发明授权
    • Coordinates input apparatus and vibration detecting apparatus
    • 坐标输入装置和振动检测装置
    • US5842153A
    • 1998-11-24
    • US773886
    • 1996-12-27
    • Katsuyuki KobayashiAtsushi TanakaYuichiro YoshimuraRyozo YanagisawaMasaki TokiokaHajime Sato
    • Katsuyuki KobayashiAtsushi TanakaYuichiro YoshimuraRyozo YanagisawaMasaki TokiokaHajime Sato
    • G06F3/043G06F3/033G01B17/00C08C21/00
    • G06F3/0433
    • A coordinate input apparatus which can stably input coordinates at a high precision is provided. A vibration sensor is fixed to a vibration propagating plate by means such as an adhesion or the like. Electrodes are formed on both edge surfaces of the vibration sensor. One electrode is connected to the vibration propagating plate (its surface is made of a conductive material). Another electrode is connected to a conductive plate spring through an electrode leading member. The electrode leading member has a cylindrical portion to position a projecting portion to a center axis by setting a side surface of the vibration sensor to a reference has a relation adapted to be come into engagement with the vibration sensor. The plate spring presses the electrode leading member to the vibration sensor and is electrically connected to the vibration sensor. Since the position to extract a signal from the vibration sensor is positioned by setting the side surface of the vibration sensor to a reference, the signal can be stably extracted at a high precision.
    • 提供一种能够以高精度稳定地输入坐标的坐标输入装置。 振动传感器通过粘接等方式固定在振动传播板上。 电极形成在振动传感器的两个边缘表面上。 一个电极连接到振动传播板(其表面由导电材料制成)。 另一电极通过电极引导构件连接到导电板弹簧。 电极引导构件具有通过将振动传感器的侧表面设定为基准而将突出部分定位到中心轴线的圆柱形部分具有适于与振动传感器接合的关系。 板簧将电极引导构件按压到振动传感器并与振动传感器电连接。 由于通过将振动传感器的侧面设定为基准来定位从振动传感器提取信号的位置,所以能够以高精度稳定地提取信号。