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    • 12. 发明申请
    • IMAGE DISPLAY DEVICE, CONTROL DEVICE FOR SAME, AND INTEGRATED CIRCUIT
    • 图像显示装置,用于相同的控制装置和集成电路
    • US20120105509A1
    • 2012-05-03
    • US13381625
    • 2010-06-30
    • Takeshi ItoHaruo Yamashita
    • Takeshi ItoHaruo Yamashita
    • G09G5/10
    • G09G3/3426G02F1/133603G02F2001/133601G02F2001/133613G09G2320/0646
    • Disclosed is an image display device having improved image qualities, while reducing power consumption. A backlight unit (20) includes a plurality of light sources disposed so as to form a plurality of light emission regions. A liquid crystal panel (10) displays an image by modulating light emitted from the backlight unit (20) in accordance with light emission transmissivity. A control unit (40) controls the light emission luminance value of the backlight unit (20) for each light emission region, and controls a liquid crystal display device (1). The control unit (40) calculates the light emission transmissivity, on the basis of the distances between the pixels of the liquid crystal panel (10) and the reference position(s) in one or more light emission regions, the luminance value of light that arrives the pixels, said luminance value being determined on the basis of the controlled light emission luminance value, and the image signals inputted to the pixels.
    • 公开了一种图像显示装置,其具有改善的图像质量,同时降低功耗。 背光单元(20)包括设置成形成多个发光区域的多个光源。 液晶面板(10)通过根据发光透射率调制从背光单元(20)发出的光来显示图像。 控制单元(40)对每个发光区域控制背光单元(20)的发光亮度值,并控制液晶显示装置(1)。 控制单元(40)基于液晶面板(10)的像素与一个以上的发光区域的基准位置之间的距离来计算发光透射率,光的亮度值 到达像素,所述亮度值是根据受控发光亮度值和输入到像素的图像信号确定的。
    • 14. 发明申请
    • DYNAMIC RANGE COMPRESSION APPARATUS, DYNAMIC RANGE COMPRESSION METHOD, COMPUTER-READABLE RECORDING MEDIUM, INTEGRATED CIRCUIT, AND IMAGING APPARATUS
    • 动态范围压缩装置,动态范围压缩方法,计算机可读记录介质,集成电路和成像装置
    • US20090295937A1
    • 2009-12-03
    • US12475958
    • 2009-06-01
    • Daisuke SatoHaruo YamashitaTakeshi Ito
    • Daisuke SatoHaruo YamashitaTakeshi Ito
    • H04N5/228G06K9/36
    • H04N5/235H04N5/20
    • A dynamic range (D-range) compression apparatus that uses a look-up table (LUT) is capable of dynamic compression that compresses the peak input value to the full output range, even when image signals with variable D-ranges are inputted.According to this D-range compression apparatus, D-range compression processing that places the D-range of the image signal within a predetermined output D-range is performed by the visual processing unit converting the tone of the image signal in accordance with the surrounding average luminance signal. Furthermore, with this D-range compression apparatus, the image signal is amplified in accordance with amplification input/output conversion characteristics determined based on the peak value in the image detected by the peak detection unit, and therefore it is possible to perform a dynamic amplification processing in accordance with the peak value so that the D-range of the image signal outputted from the visual processing unit becomes a predetermined output D-range.
    • 使用查找表(LUT)的动态范围(D范围)压缩装置能够进行动态压缩,即使当输入具有可变D范围的图像信号时,也可以将峰值输入值压缩到全部输出范围。 根据该D档压缩装置,将图像信号的D范围设定在预定的输出D范围内的D范围压缩处理由视觉处理部根据周围的图像信号的色调 平均亮度信号。 此外,利用该D范围压缩装置,根据由峰值检测单元检测到的图像中的峰值确定的放大输入/输出转换特性来放大图像信号,因此可以执行动态放大 根据峰值进行处理,使得从可视处理单元输出的图像信号的D范围变为预定的输出D范围。
    • 15. 发明授权
    • Image processing device
    • 图像处理装置
    • US07583403B2
    • 2009-09-01
    • US10527661
    • 2003-09-11
    • Takeshi ItoHaruo Yamashita
    • Takeshi ItoHaruo Yamashita
    • H04N1/40
    • H04N9/68H04N1/62H04N1/628H04N9/643
    • An image processing apparatus of correcting the color of a specific range of a pixel signal for each pixel included in an input image signal, comprises an intensity determination means of generating a correction intensity that is small on the periphery of the color region of the specific range on the basis of two chromaticity signals excluding a luminance component and large in the vicinity of the nearly central portion of the range in the pixel signal, a target color setting means of setting a target color depending on which the pixel signal is corrected, a correction degree setting means of setting correction degree by also using information, other than pixel information, included in the pixel signal, and a correction means of making the image signal close to the target color depending on the correction intensity output from the intensity determination means and the correction degree output from the correction degree setting means.
    • 一种用于校正包括在输入图像信号中的每个像素的像素信号的特定范围的颜色的图像处理装置,包括:强度确定装置,其产生在特定范围的颜色区域的周围较小的校正强度 基于除了像素信号的范围的近似中心部分附近的亮度分量和大的两个色度信号,根据哪个像素信号进行校正来设定目标色彩的目标色彩设定装置,校正 通过还使用包括在像素信号中的除了像素信息之外的信息来设置校正度的度数设置装置,以及根据从强度确定装置输出的校正强度使得图像信号接近目标颜色的校正装置, 从校正度设定单元输出校正度。
    • 18. 发明授权
    • Image forming device and recording intermediate belt mounting jig
    • 图像形成装置和记录中间带安装夹具
    • US06937259B2
    • 2005-08-30
    • US10363357
    • 2001-09-03
    • Kenji SasakiYoshihiro YokoyamaHaruo YamashitaKazuyuki TakahashiTetsuya Morita
    • Kenji SasakiYoshihiro YokoyamaHaruo YamashitaKazuyuki TakahashiTetsuya Morita
    • B41J2/005B41J3/407B41J2/32B41J2/325
    • B41J2/0057B41J3/407
    • A recording intermediate belt 15 which is made endless so as to travels around a continuous path has image formation areas and non-image formation areas alternately provided on an outer surface thereof. Images of different colors are sequentially formed in the image formation areas by recording heads 21b through 23b respectively provided in first through third image formation sections 21 through 23. The recording heads 21b through 23b of the first through third image formation sections 21 through 23 are separated from each other by a distance which is greater than a length of an image formation area in a traveling direction of the recording intermediate belt 15. The recording heads 21b through 23b are each pressed onto the recording intermediate belt 15 in a non-image formation area immediately preceding an image formation area and starts an image formation operation. The image formation operation is stopped when the recording heads 21b through 23b each face a non-image formation area immediately subsequent to the image formation area. Thus, a clear full-color image can be formed with the image formed in each image formation section being free from color non-uniformity.
    • 环绕着连续路径行进的记录中间带15具有在其外表面上交替设置的图像形成区域和非图像形成区域。 通过分别设置在第一至第三图像形成部21至23中的记录头21b至23b在图像形成区域中顺序地形成不同颜色的图像。 第一至第三图像形成部21至23的记录头21b至23b彼此间隔大于记录中间带15的行进方向上的图像形成区域的长度的距离。 记录头21b至23b在紧邻图像形成区域的非图像形成区域中被按压到记录中间带15上,并开始图像形成操作。 当记录头21b至23b分别面对图像形成区域之后的非图像形成区域时,停止图像形成操作。 因此,可以形成在每个图像形成部分中形成的图像没有颜色不均匀的透明全色图像。
    • 19. 发明申请
    • Optical transmission method and system
    • 光传输方式及系统
    • US20050123293A1
    • 2005-06-09
    • US11039916
    • 2005-01-24
    • Kazumitsu MakiHaruo Yamashita
    • Kazumitsu MakiHaruo Yamashita
    • H04B10/08H04B10/24
    • H04B10/40
    • In an optical transmission method and system for performing a bidirectional optical transmission at an identical wavelength between an intra-office transmission circuit and in-house transmission circuits with a single-core optical fiber, the intra-office transmission circuit detects, based on a response failure of the in-house transmission circuits, an in-house transmission circuit corresponding to the response failure, and further detects a failure point by transmitting an optical isolated pulse to the in-house transmission circuit corresponding to the response failure in order to automatically detect a disconnection failure of an optical fiber without connecting a specific measuring device.
    • 在通过单芯光纤在办公室间传输电路和室内传输电路之间以相同的波长执行双向光传输的光传输方法和系统中,局内传输电路基于响应 内部传输电路故障,与响应故障相对应的内部传输电路,并且还通过将光隔离脉冲发送到与响应故障相对应的内部传输电路来检测故障点,以便自动检测 在不连接特定测量装置的情况下光纤的断开故障。
    • 20. 发明授权
    • Thermal gradation printing apparatus
    • 热分级打印设备
    • US5808653A
    • 1998-09-15
    • US835019
    • 1997-04-08
    • Yasuki MatsumotoHaruo YamashitaHideshi Ishihara
    • Yasuki MatsumotoHaruo YamashitaHideshi Ishihara
    • B41J2/365B41J2/36
    • B41J2/3551B41J2/3555B41J2/365
    • In the disclosed thermal gradation printing apparatus, heat elements in a line-type thermal head are divided into a plurality of groups, and an accumulated heat amount in the substrate of the thermal head for each group is estimated based on the pulse width data applied to each heat element considering the influences by heat accumulations in the main-scanning direction and in the sub-scanning direction. Based on the group division estimated accumulated heat amounts and the temperature of the body portion of the thermal head, a correction value for the pulse width data to be applied to each heat element. Moreover, the correction value is applied to the pulse width data for each heat element, so as to output the corrected pulse width data to the thermal head.
    • 在公开的热分级打印装置中,线型热敏头中的热元件被分成多组,并且基于应用于每一组的脉冲宽度数据来估计每组的热敏头的基板中的累积热量 考虑到在主扫描方向和副扫描方向上的积聚的影响的每个热元件。 基于分组估计累积热量和热敏头的主体部分的温度,对应于每个加热元件的脉冲宽度数据的校正值。 此外,将校正值应用于每个加热元件的脉冲宽度数据,以便将校正的脉冲宽度数据输出到热敏头。