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1. 发明授权

US06278496B1 Digital correction circuit and image data processing apparatus equipped with a digital correction circuit 有权
标题翻译：具有数字校正电路的数字校正电路和图像数据处理装置
公开(公告)号：US06278496B1
公开(公告)日：2001-08-21
申请号：US09168773
申请日：1998-10-08
申请人： Makoto Kitagawa , Mitsugu Kobayashi , Makoto Fujioka , Yusuke Tsutsui , Hisao Uehara
发明人： Makoto Kitagawa , Mitsugu Kobayashi , Makoto Fujioka , Yusuke Tsutsui , Hisao Uehara
IPC分类号： H04N5202
CPC分类号： H04N5/202 , G09G3/2059 , G09G3/3648 , G09G2320/0276 , G09G2320/0606 , G09G2320/0626 , G09G2320/066 , H04N9/69
摘要： In the &ggr; correction circuit, a crossover point arithmetic processing unit performs arithmetic processing for each region on crossover points y in the output data direction of a &ggr; correction crossover line based on a plurality of slope data A respectively specified for each of a plurality of regions and crossover point positions X in the input data direction set in advance. A 5-to-4 encoder and a selector select one of a plurality of slope data A respectively specified for each of a plurality of regions and one result B of the results y of arithmetic processing on said crossover points based on the upper bits of input data, a flag encoder and another selector calculate the difference &Dgr;X from a crossover point position in the input data direction to the input data in the region to which input data belongs, and an arithmetic processing unit multiples the above difference &Dgr;X by the selected slope A, adds the multiplication result to the value of the selected crossover point position B in the output data direction, and outputs that value as a &ggr; correction value. Consequently, even if the number of crossover lines for digital &ggr; correction increases, arithmetic processing is simplified. When an image data processing apparatus is used, a pseudo gray scale processing circuit may be provided in a later stage of this &ggr; correction circuit to decrease the number of data bits.
摘要翻译：在伽马校正电路中，交叉点算术处理单元基于分别为多个区域中的每一个指定的多个斜率数据A，对伽马校正交叉线的输出数据方向上的交叉点y上的各区域进行运算处理并在预先设定的输入数据方向上的交叉点位置X。 5对4编码器和选择器选择分别为多个区域中的每一个指定的多个斜率数据A中的一个，以及基于输入的较高位的所述交叉点上的算术处理结果y的一个结果B 数据，标志编码器和另一个选择器从输入数据方向上的交叉点位置到输入数据所属的区域中的输入数据计算差DELTAX，并且运算处理单元将上述差DELTAX乘以所选择的斜率A ，将乘法结果与输出数据方向上所选交叉点位置B的值相加，并输出该值作为伽马校正值。因此，即使用于数字伽马校正的交叉线的数量增加，也能够简化算术处理。当使用图像数据处理装置时，可以在该伽马校正电路的后期提供伪灰度级处理电路以减少数据比特数。

2. 发明授权

US6118905A Image data processing through changing error diffusing technique depending upon kind of images 失效
标题翻译：通过根据图像种类改变误差扩散技术的图像数据处理
公开(公告)号：US6118905A
公开(公告)日：2000-09-12
申请号：US591837
申请日：1996-01-19
申请人： Hisao Uehara , Mitsugu Kobayashi , Makoto Fujioka , Kenji Saiki , Makoto Kitagawa , Yusuke Tsutsui
发明人： Hisao Uehara , Mitsugu Kobayashi , Makoto Fujioka , Kenji Saiki , Makoto Kitagawa , Yusuke Tsutsui
IPC分类号： H04N1/40 , G06T5/00 , G09G3/20 , G09G3/36 , G09G5/00 , G09G5/36 , H04N1/405 , H04N1/56 , H04N1/60 , G06K9/36 , G06K9/38 , G06K9/46
CPC分类号： G09G3/2059 , H04N1/56 , G09G2320/0613
摘要： An image processing apparatus detects, in step 1, whether or not differences between currently supplied image data and image data of a previous pixel are more than a predetermined value m, and identifies a border of a computer-created image or a natural image, where a brightness level differs from the remaining area of the image, when the differences are more than the predetermined value m. Conversely, when the differences are less than the predetermined value m, the image processing apparatus checks, in step 2, whether image data at a pixel before and a pixel two before the current pixel are identical with respect to the color components constituting the color image. When the differences are not all zero, it is checked whether or not the image data at a pixel before the current pixel and the image data at the current pixel are all zero. When the image data are not identical, the color image is identified as being a natural image. When the image data are identical, the color image is identified as being a computer-created image. In step 3, the computer-created image is checked as to whether it is a 2-pixel checkered image.
摘要翻译：图像处理装置在步骤1中检测当前提供的图像数据和先前像素的图像数据之间的差异是否大于预定值m，并且识别计算机创建的图像或自然图像的边界，其中当差值大于预定值m时，亮度级别与图像的剩余区域不同。相反，当差小于预定值m时，图像处理装置在步骤2中检查在当前像素之前的像素之前的像素数据和相对于构成彩色图像的色彩分量相同的像素之间的图像数据。当差异不全部为零时，检查当前像素之前的像素处的图像数据和当前像素处的图像数据是否全部为零。当图像数据不相同时，彩色图像被识别为自然图像。当图像数据相同时，彩色图像被识别为计算机创建的图像。在步骤3中，检查计算机创建的图像是否是2像素方格图像。

3. 发明授权

US5784040A Image information processor 失效
标题翻译：图像信息处理器
公开(公告)号：US5784040A
公开(公告)日：1998-07-21
申请号：US597119
申请日：1996-02-06
申请人： Mitsugu Kobayashi , Makoto Fujioka , Atsuyoshi Tanioka , Kazuhiko Moriwaki , Makoto Shimizu , Hisao Uehara
发明人： Mitsugu Kobayashi , Makoto Fujioka , Atsuyoshi Tanioka , Kazuhiko Moriwaki , Makoto Shimizu , Hisao Uehara
IPC分类号： G09G3/20 , G09G3/36 , G09G5/10
CPC分类号： G09G3/2062 , G09G3/2059 , G09G3/3611 , G09G3/2018
摘要： An image information processor for a liquid crystal display by a digital driver is intended to provide image display near to a source image by making continuous-tone image display by pseudo representations. The image information processor generates L-bit image display data based on P-bit source image data, L being less than P. Added to source image data of a picture element of the Nth frame (where N is a natural number of 2 or greater) is error data corresponding to the picture element of the (N-1)th frame at the same position as the picture element of the Nth frame. The high-order L bits of the P-bit data resulting from the addition are used as image display data of the picture element of the Nth frame and at least one bit of the remaining low-order bit data is held as error data of the picture element of the Nth frame. Thus, error data of a picture element of one frame is added to the same picture element of the next frame, thereby lessening the brightness difference between both the picture elements and smoothing a time change in brightness.
摘要翻译：用于数字驱动器的液晶显示器的图像信息处理器旨在通过伪表示进行连续色调图像显示来提供靠近源图像的图像显示。图像信息处理器基于P比特源图像数据生成L比特图像显示数据，L小于P.添加到第N帧的图像元素（其中N是2或更大的自然数）的源图像数据）是与第N帧的图像元素相同位置处的第（N-1）帧的像素对应的误差数据。由相加产生的P位数据的高阶L位用作第N帧的像素的图像显示数据，剩下的低位比特数据的至少一位被保持为第N帧的图像元素。因此，将一帧的像素的误差数据添加到下一帧的相同像素，从而减小两个像素之间的亮度差并平滑亮度的时间变化。

4. 发明授权

US5596349A Image information processor 失效
标题翻译：图像信息处理器
公开(公告)号：US5596349A
公开(公告)日：1997-01-21
申请号：US128476
申请日：1993-09-28
申请人： Mitsugu Kobayashi , Makoto Fujioka , Atsuyoshi Tanioka , Kazuhiko Moriwaki , Makoto Shimizu , Hisao Uehara
发明人： Mitsugu Kobayashi , Makoto Fujioka , Atsuyoshi Tanioka , Kazuhiko Moriwaki , Makoto Shimizu , Hisao Uehara
IPC分类号： G09G3/20 , G09G3/36 , G09G5/10
CPC分类号： G09G3/2062 , G09G3/2059 , G09G3/3611 , G09G3/2018
摘要： An image information processor for a liquid crystal display by a digital driver is intended to provide image display near to a source image by making continuous-tone image display by pseudo representations. The image information processor generates L-bit image display data based on P-bit source image data, L being less than P. Added to source image data of a picture element of the Nth frame (where N is a natural number of 2 or greater) is error data corresponding to the picture element of the (N-1)th frame at the same position as the picture element of the Nth frame. The high-order L bits of the P-bit data resulting from the addition are used as image display data of the picture element of the Nth frame and at least one bit of the remaining low-order bit data is held as error data of the picture element of the Nth frame. Thus, error data of a picture element of one frame is added to the same picture element of the next frame, thereby lessening the brightness difference between both the picture elements and smoothing a time change in brightness.
摘要翻译：用于数字驱动器的液晶显示器的图像信息处理器旨在通过伪表示进行连续色调图像显示来提供靠近源图像的图像显示。图像信息处理器基于P比特源图像数据生成L比特图像显示数据，L小于P.添加到第N帧的图像元素（其中N是2或更大的自然数）的源图像数据）是与第N帧的图像元素相同位置处的第（N-1）帧的像素对应的误差数据。由相加产生的P位数据的高阶L位用作第N帧的像素的图像显示数据，剩下的低位比特数据的至少一位被保持为第N帧的图像元素。因此，将一帧的像素的误差数据添加到下一帧的相同像素，从而减小两个像素之间的亮度差并平滑亮度的时间变化。

5. 发明授权

US07030871B2 Active matrix display device 有权
公开(公告)号：US07030871B2
公开(公告)日：2006-04-18
申请号：US10206800
申请日：2002-07-29
申请人： Makoto Kitagawa , Mitsugu Kobayashi , Makoto Fujioka
发明人： Makoto Kitagawa , Mitsugu Kobayashi , Makoto Fujioka
IPC分类号： G09G5/00
CPC分类号： G09G3/2092 , G09G3/3648 , G09G5/12 , G09G5/39 , G09G2300/08 , G09G2320/10 , G09G2330/021 , G09G2360/18
摘要： This invention is directed to the active matrix display device with an imaging speed rapid enough for the moving image display and the small power consumption. The selector makes the switch between the moving image mode, where the image signal consecutively inputted is consecutively displayed after the certain processing is performed by the data processing unit and the still image mode, where the display is made based on the image signal stored in the frame memory. The messy display upon the switching between the modes can be prevented by differentiating the switching timing of the still to moving image mode from that of the moving to still image mode, improving the display quality.

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