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    • 61. 发明授权
    • Coordinate detection device capable of detecting coordinates using
display panel provided specially for display
    • 能够使用专门显示的显示面板检测坐标的坐标检测装置
    • US5854881A
    • 1998-12-29
    • US444894
    • 1995-05-19
    • Yasuhiro YoshidaKengo TakahamaTakao Tagawa
    • Yasuhiro YoshidaKengo TakahamaTakao Tagawa
    • G06F3/041G06F3/033G06F3/046G09G3/36
    • G06F3/0412
    • Provided is a coordinate detection device capable of preventing the increase of development cost and the reduction of yield and dispensing with additional investment for the existing equipment. There are provided an LCD panel having electrodes and electrodes, a magnetic field generator which outputs an AC magnetic field from a tip end of its electrode, a differential amplifier, switching circuits which sequentially select electrodes of the LCD panel and connect the electrodes to the differential amplifier, and a coordinate detection circuit which detects the coordinates of a position in which the magnetic field generator is located based on a timing at which the electrodes are selected and an output of the differential amplifier. A coordinate detection function can be achieved by means of the LCD panel having the same structure as that of the LCD panel provided specially for image display. Furthermore, there is no need to form a closed loop in the electrodes of the LCD panel, which obviates the need of providing any board opposite to four sides of the LCD panel.
    • 提供一种能够防止开发成本的增加和产量的降低并且为现有设备省去额外的投资的坐标检测装置。 提供了具有电极和电极的LCD面板,从其电极的前端输出AC磁场的磁场发生器,差分放大器,依次选择LCD面板的电极并将电极连接到差分放大器的开关电路 放大器和基于选择电极的定时和差分放大器的输出来检测磁场发生器所在位置的坐标的坐标检测电路。 可以通过具有与专门用于图像显示的LCD面板相同结构的LCD面板来实现坐标检测功能。 此外,不需要在LCD面板的电极中形成闭环,这避免了提供与LCD面板的四个侧面相对的任何板的需要。
    • 63. 发明授权
    • Method for calculating speed estimated value in speed control system
    • 速度控制系统速度估计值的计算方法
    • US5533166A
    • 1996-07-02
    • US397859
    • 1995-03-02
    • Yasuhiro YoshidaYasuhiro Yamamoto
    • Yasuhiro YoshidaYasuhiro Yamamoto
    • H02P29/00G01P3/489H02P23/00H02P5/17
    • G01P3/489H02P23/16Y10S388/904Y10S388/906Y10S388/93
    • A method for calculating a speed estimated value in a speed control system, comprises the steps of: (a) storing the number of speed detection pulses obtained at each interval of a speed control process and time that the speed detection pulse was obtained; (b) calculating a detection speed from the number of latest speed detection pulses and its detection time, and the number of the previously stored speed detection pulses and its detection time; (c) executing an averaging process of motor model output corresponding to time that the detection speed was obtained; (d) obtaining a difference between an output obtained at said step (c) and the detection speed; (e) executing a calculation of a load torque estimation by multiplying the difference of the step (d) by an observer gain; (f) executing an estimation of a motor speed for next processing from the difference of the step (d) and a difference between the detection speed and the motor model output; (g) calculating an output of a speed amplifier by constituting the speed amplifier by a proportion element and from a speed estimated value obtained in the step (f); (h) obtaining a torque command by summing the speed amplifier and the load torque estimated value; and (i) outputting the torque command of the step (h) at a start point of the next speed control interval. Therefore, an output time of the torque command becomes clear, and the estimated value of the motor speed at a correct time can be obtained.
    • 一种用于计算速度控制系统中的速度估计值的方法,包括以下步骤:(a)存储在速度控制处理的每个间隔获得的速度检测脉冲的数量和获得速度检测脉冲的时间; (b)根据最新速度检测脉冲数及其检测时间以及之前存储的速度检测脉冲的数量及其检测时间计算检测速度; (c)执行对应于获得检测速度的时间的电机模型输出的平均处理; (d)获得在所述步骤(c)获得的输出与所述检测速度之间的差; (e)通过将步骤(d)的差乘以观测器增益来执行负载转矩估计的计算; (f)根据步骤(d)的差异和检测速度与电动机模型输出之间的差异来执行用于下一个处理的电动机速度的估计; (g)通过构成速度放大器的比例元素和从步骤(f)中获得的速度估计值来计算速度放大器的输出; (h)通过将速度放大器和负载转矩估计值求和来获得转矩指令; 以及(i)在下一个速度控制间隔的起始点输出步骤(h)的转矩指令。 因此,扭矩指令的输出时间变得清晰,可以获得正确时刻的电动机速度的推定值。
    • 70. 发明申请
    • MULTI-PRIMARY COLOUR DISPLAY DEVICE
    • 多主色彩显示设备
    • US20140225940A1
    • 2014-08-14
    • US14343186
    • 2012-09-04
    • Shinji NakagawaHiroyuki FurukawaKazuyoshi YoshiyamaYasuhiro Yoshida
    • Shinji NakagawaHiroyuki FurukawaKazuyoshi YoshiyamaYasuhiro Yoshida
    • G09G3/20G09G3/36
    • G09G3/2003G09G3/3607G09G2300/0452G09G2320/0242G09G2340/0457G09G2340/06G09G2360/16
    • This multi-primary-color display device (100) includes a multi-primary-color display panel (10) and a signal converter (20). The display device assigns a plurality of subpixels that form each pixel to a plurality of virtual pixels and is able to conduct a display operation using each of the plurality of virtual pixels as a minimum color display unit. The signal converter (20) includes: a low-frequency multi-primary-color signal generating section (21) which generates a low-frequency multi-primary-color signal; a high-frequency luminance signal generating section (22) which generates a high-frequency luminance signal; and a rendering processing section (23) which performs rendering processing on the plurality of virtual pixels based on the low-frequency multi-primary-color signal and the high-frequency luminance signal. The signal converter (20) further includes a magnitude of correction calculating section (24) which calculates, based on an input image signal, the magnitude of correction to be made on the high-frequency luminance signal during the rendering processing.
    • 该多原色显示装置(100)包括多原色显示面板(10)和信号转换器(20)。 显示装置将形成每个像素的多个子像素分配给多个虚拟像素,并且能够使用多个虚拟像素中的每一个作为最小颜色显示单元进行显示操作。 信号转换器(20)包括:产生低频多原色信号的低频多原色信号产生部分(21); 生成高频亮度信号的高频亮度信号生成部(22); 以及基于所述低频多原色信号和所述高频亮度信号对所述多个虚拟像素进行再现处理的渲染处理部(23)。 信号转换器(20)还包括校正计算部分(24)的大小,其根据输入图像信号计算在渲染处理期间对高频亮度信号进行校正的幅度。