Image processing device and image processing method
    151.
    发明授权
    Image processing device and image processing method 有权
    图像处理装置及图像处理方法

    公开(公告)号:US06450647B1

    公开(公告)日:2002-09-17

    申请号:US09640982

    申请日:2000-08-18

    CPC classification number: H04N9/3185 H04N5/74 H04N2005/745

    Abstract: A display pixel range between a display start position and a display end position of a distortion corrected image is determined on each horizontal line of the image forming section, based on horizontal correction parameters representing distortion-correction amounts at left- and right-sides of the distortion-corrected image to be supplied to an image forming section for forming an image to be projected onto a screen, and a first relation between each pixel within the display pixel range and each pixel in the original image is determined. A display line range between a display start line and a display end line of the distortion corrected image is also determined on the image forming section, based on vertical correction parameters representing distortion-correction amounts in the vertical direction of the distortion-corrected image, a second relation between each line within the display line range and each line in the original image is determined. The distortion-corrected image is produced from the original image according to the first and second relations. This allows easy correction of image distortion due to tilt projection of images onto the screen.

    Abstract translation: 基于表示在图像形成部的左右两侧的失真校正量的水平校正参数,在图像形成部的每条水平线上确定失真校正图像的显示开始位置和显示结束位置之间的显示像素范围 将被提供给图像形成部分的失真校正图像用于形成要投影到屏幕上的图像,并且确定显示像素范围内的每个像素与原始图像中的每个像素之间的第一关系。 还根据表示失真校正图像的垂直方向上的失真校正量的垂直校正参数,在图像形成部分确定显示起始行和失真校正图像的显示结束行之间的显示行范围, 确定显示行范围内的各行与原始图像中的每一行之间的第二关系。 根据第一和第二关系从原始图像产生失真校正图像。 这允许容易地校正由于图像在屏幕上的倾斜投影引起的图像失真。

    Image processor and integrated circuit for the same
    152.
    发明授权
    Image processor and integrated circuit for the same 失效
    图像处理器和集成电路相同

    公开(公告)号:US06239729B1

    公开(公告)日:2001-05-29

    申请号:US09341696

    申请日:1999-07-26

    CPC classification number: G09G5/008 G09G5/006 G09G5/395 G09G2360/02

    Abstract: A digital image signal is latched by four latches respectively in response to four latch clock signs, which have a frequency that is ¼ of a frequency of a dot clock signal and phases that are mutually shifted by every period of the dot dock signal. The four latched digital image signals are further latched by a common latch in response to a common latch signal. The digital image signals with respect to four consecutive pixels are then output as one set of digital image signals. The output digital image signals are written into consecutive storage areas in a frame memory, in response to a write sampling dock signal which has a frequency that is ¼ of the frequency of the dot clock signal The number of latches is regulated according to a frequency of an analog image signal. This arrangement facilitates image processing for high-frequency image signals.

    Abstract translation: 数字图像信号分别响应于四个锁存时钟符号被锁存,四个锁存时钟符号的频率是点时钟信号的频率的1/4,并且由点对点信号的每个周期相互移位的相位。 响应于公共锁存信号,四个锁存的数字图像信号被公共锁存器进一步锁存。 然后将相对于四个连续像素的数字图像信号作为一组数字图像信号输出。 输出数字图像信号被写入到帧存储器中的连续存储区域中,响应于具有为点时钟信号的频率的1/4的频率的写取样停靠信号。锁存器的数量根据 模拟图像信号。 这种布置方便了高频图像信号的图像处理。

    Method and apparatus for transferring video data using mask data
    154.
    发明授权
    Method and apparatus for transferring video data using mask data 失效
    使用掩模数据传送视频数据的方法和装置

    公开(公告)号:US5880741A

    公开(公告)日:1999-03-09

    申请号:US960270

    申请日:1997-10-29

    CPC classification number: G09G5/393 G09G2320/0261

    Abstract: A mask data RAM (Random Access Memory) 213 stores mask data TDATA, which is 1 bit dot data representing a moving picture area MR. The state of the mask data TDATA determines the level of a write signal /MWR given to a dual-port VRAM (Video Random Access Memory) 212 for storing video data. An address for DMA (Direct Memory Access) transfer of the video data to the dual-port VRAM 212 is given to the mask data RAM 213 as well as the dual-port VRAM 212, and therefore the mask data TDATA are read out from the mask data RAM 213 for each dot of the video data. The mask data TDATA are updated according to the position and the shape of a moving picture window on a display screen. This allows a moving picture of an arbitrary shape corresponding to the state of the moving picture window to be transferred to the dual-port VRAM 212 and displayed on the display device.

    Abstract translation: 掩模数据RAM(随机存取存储器)213存储作为表示运动图像区域MR的1位点数据的掩模数据TDATA。 掩模数据TDATA的状态确定给予用于存储视频数据的双端口VRAM(视频随机存取存储器)212的写入信号/ MWR的电平。 将视频数据的DMA(直接存储器访问)传送到双端口VRAM 212的地址被提供给掩模数据RAM 213以及双端口VRAM 212,并且因此从其中读出掩模数据TDATA 屏幕数据RAM 213,用于视频数据的每个点。 掩模数据TDATA根据显示屏幕上的运动图像窗口的位置和形状被更新。 这允许将与运动图像窗口的状态对应的任意形状的运动图像传送到双端口VRAM 212并显示在显示装置上。

    Apparatus and method of transferring video data of a moving picture

    公开(公告)号:US5546137A

    公开(公告)日:1996-08-13

    申请号:US389488

    申请日:1995-02-16

    CPC classification number: G06F13/28 G09G5/022 G09G5/393 H04N19/00 G09G2340/12

    Abstract: A multiplier 7 multiplies an adding address stored in an adding address memory 3 by a vertical count output from a vertical counter unit 4. A first adder 8 adds the product of the multiplier 7 to an offset address stored in the offset address memory 2. A second adder 9 adds the sum in the first adder 8 to a horizontal count in a horizontal counter unit 5. A third adder 10 adds the sum in the second adder 9 to each of area-start addresses for RGB color components stored in three area-start address memory units 6R, 6G, and 6B, respectively. An output AD3 from the third adder 10 becomes an access address in DMA transfer. The access address in DMA transfer is accordingly calculated by simple arithmetic operation in a DMA controller 34, which thereby attains high-speed DMA transfer.

    Phase locked loop (PLL) circuit having enhanced frequency selection range
    156.
    发明授权
    Phase locked loop (PLL) circuit having enhanced frequency selection range 失效
    锁相环(PLL)电路具有增强的频率选择范围

    公开(公告)号:US5185584A

    公开(公告)日:1993-02-09

    申请号:US620173

    申请日:1990-11-30

    CPC classification number: H03L7/099 H03K3/03 H03K3/354

    Abstract: A phase locked loop (PLL) circuit comprises a phase comparator, a low-pass filter, an error amplifier, and a voltage controlled oscillator (VCO) circuit which includes a current mirror circuit section and oscillator circuit section to provide an oscillation frequency based on the output current of the current mirror circuit section. To vary the oscillation over a wide range, a fixed reference voltage circuit is connected to the current mirror circuit, and either a source follower circuit made of a MOSFET or a FET or an emitter follower circuit made of a bipolar transistor is included is also connected to the current mirror circuit to selectively varying the output current of the current mirror circuit section upon application of a control voltage applied to the follower circuit. Thus, the follower circuit is controlled by a control voltage while the output current of the current mirror circuit varies depending on the magnitude of the control voltage, and, in turn, the oscillating frequency of the oscillator circuit section varies over a wide frequency range, e.g., in excess of 100 dB, in accordance with the output current.

    Abstract translation: 锁相环(PLL)电路包括相位比较器,低通滤波器,误差放大器和压控振荡器(VCO)电路,其包括电流镜电路部分和振荡器电路部分,以提供基于 电流镜电路部分的输出电流。 为了在宽范围内改变振荡,固定参考电压电路连接到电流镜电路,并且包括由MOSFET或FET制成的源极跟随器电路或由双极晶体管制成的射极跟随器电路也被连接 连接到电流镜电路,以在施加施加到跟随器电路的控制电压时选择性地改变电流镜电路部分的输出电流。 因此,跟随器电路由控制电压控制,而电流镜电路的输出电流根据控制电压的大小而变化,并且振荡器电路部分的振荡频率又在较宽的频率范围内变化, 例如,超过100dB,根据输出电流。

    Electromechanical device, robot, movable body, and method of manufacturing electromechanical device
    157.
    发明授权
    Electromechanical device, robot, movable body, and method of manufacturing electromechanical device 有权
    机电装置,机器人,移动体以及制造机电装置的方法

    公开(公告)号:US08729769B2

    公开(公告)日:2014-05-20

    申请号:US13488961

    申请日:2012-06-05

    Abstract: An electromechanical device includes: a center shaft; a rotor having a rotor magnet disposed around an outer periphery of the center shaft; and a stator disposed on an outer periphery of the rotor, wherein the center shaft is formed of a carbon-fiber-reinforced plastic, and when projection is performed in a radial direction from the center shaft toward the rotor magnet, an angle between a direction of carbon fiber in the carbon-fiber-reinforced plastic and a direction of the center shaft is 45°.

    Abstract translation: 机电装置包括:中心轴; 转子,其具有绕所述中心轴的外周配置的转子磁体; 以及设置在所述转子的外周上的定子,其中所述中心轴由碳纤维增强塑料形成,并且当从所述中心轴朝向所述转子磁体沿径向方向进行突起时,所述方向 碳纤维增强塑料中的碳纤维和中心轴的方向为45°。

    Electromechanical device, movable body, robot, method of measuring temperature of electromechanical device
    158.
    发明授权
    Electromechanical device, movable body, robot, method of measuring temperature of electromechanical device 有权
    机电装置,移动体,机器人,机电装置温度测量方法

    公开(公告)号:US08654498B2

    公开(公告)日:2014-02-18

    申请号:US13371753

    申请日:2012-02-13

    CPC classification number: B62M6/50 G01K7/16

    Abstract: An electromechanical device includes a rotor, a stator having a magnetic coil, a sensor adapted to detect an electric angle of the rotor, a control section adapted to perform a PWM drive on the magnetic coil based on a signal from the sensor, a resistor connected in series to the magnetic coil when measuring temperature of the electromechanical device, and a voltage measurement section adapted to measure a voltage between both ends of the resistor, and the control section calculates an electric resistance of the magnetic coil using the voltage between the both ends of the resistor measured by the voltage measurement section, and then determines the temperature of the magnetic coil using the electric resistance of the magnetic coil in a measurement period in which application of a drive voltage to the magnetic coil is stopped in the PWM drive.

    Abstract translation: 机电装置包括转子,具有磁线圈的定子,适于检测转子电角的传感器,适于基于来自传感器的信号在磁线圈上执行PWM驱动的控制部分,连接有电阻器 在测量机电装置的温度时与电磁线圈串联连接的电压测量部以及适于测量电阻器两端的电压的电压测量部,控制部使用两端之间的电压来计算电磁线圈的电阻 由电压测量部测量的电阻,然后在PWM驱动中停止对磁性线圈施加驱动电压的测量周期内,使用电磁线圈的电阻来确定电磁线圈的温度。

    Driving circuit for motor and device equipped with driving circuit
    159.
    发明授权
    Driving circuit for motor and device equipped with driving circuit 有权
    电动机驱动电路及配备驱动电路的装置

    公开(公告)号:US08344684B2

    公开(公告)日:2013-01-01

    申请号:US13012910

    申请日:2011-01-25

    CPC classification number: H02P6/16

    Abstract: The circuit structured to drive a motor is provided. The circuit includes: a division signal generator that generates a division signal dividing each of a high level period and a low level period of a binary position signal representing a relative position of a magnetic coil to a permanent magnet into a preset number of multiple divisions; a pulse width setter that sets a pulse width for PWM control corresponding to each of the multiple divisions represented by the division signal; and a PWM signal generator that performs PWM control with the set pulse width, thereby generating a PWM signal as a driving signal for driving the motor.

    Abstract translation: 提供了构造成驱动电动机的电路。 该电路包括:除法信号发生器,其将表示磁性线圈相对于永久磁铁的相对位置的二进制位置信号的高电平周期和低电平周期分割成预定数量的多个分割; 脉冲宽度设定器,其设定与由所述除法信号表示的所述多个分割中的每一个对应的PWM控制的脉冲宽度; PWM信号发生器,其以设定的脉冲宽度进行PWM控制,从而生成作为驱动马达的驱动信号的PWM信号。

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