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61. 发明授权

US06438274B1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US06438274B1
公开(公告)日：2002-08-20
申请号：US09212938
申请日：1998-12-16
申请人： Mitsuru Tokuyama , Masaaki Ohtsuki , Masatsugu Nakamura , Mihoko Tanimura
发明人： Mitsuru Tokuyama , Masaaki Ohtsuki , Masatsugu Nakamura , Mihoko Tanimura
IPC分类号： H04N140
CPC分类号： H04N1/40068 , G06T3/4007 , H04N1/3935
摘要： An image forming apparatus of the present invention includes (i) an image interpolating section for calculating interpolation point and interpolation density of the interpolation point when subjecting a binary image to resolution conversion and scaling and (ii) an offset amount correcting section for giving an offset beforehand when the image interpolating section calculates the interpolation point. As a result, the image forming apparatus can comply with unrounded magnifications of other than integral multiples and a desirable image even with respect to a character image and a pseudo-halftone image.
摘要翻译：本发明的图像形成装置包括：（i）图像内插部分，用于在对二进制图像进行分辨率转换和缩放时计算内插点和内插点的内插密度;以及（ii）偏移量校正部分，用于给出偏移量当图像内插部分计算插值点时，预先进行。结果，图像形成装置即使对于字符图像和伪半色调图像，也可以符合除积分倍数以外的未包围的倍率和期望的图像。

62. 发明授权

US06324309B1 Image processing apparatus 失效
标题翻译：图像处理装置
公开(公告)号：US06324309B1
公开(公告)日：2001-11-27
申请号：US09102379
申请日：1998-06-23
申请人： Mitsuru Tokuyama , Masatsugu Nakamura , Mihoko Tanimura , Masaaki Ohtsuki
发明人： Mitsuru Tokuyama , Masatsugu Nakamura , Mihoko Tanimura , Masaaki Ohtsuki
IPC分类号： G06K932
CPC分类号： G06T3/4007 , G06T7/11 , G06T2207/10008 , G06T2207/30176
摘要： An image processing apparatus includes a pixel number transforming section for processing input image data composed of a plurality of regions, each being represented by a plurality of pixels with a pixel number transformation, by performing an interpolation or a decrimation on a pixel. It further includes a region decision value extracting section for extracting a region decision value of a region that a target pixel belongs to, based on characteristic amounts representing characteristics of a block composed of the target pixel and a plurality of pixels around the target pixel, each pixel of the image data being considered to be the target pixel. A controller controls a sequential order of a filtering process and pixel number transformation process to be applied to a region, based upon the transformation increasing or reducing a number of pixels in a region. Finally, a region decision value transforming section is included for calculating a region decision value of each region processed with the pixel number transforming process by an interpolation or a decrimation of the region decision value as extracted from the input image data.
摘要翻译：一种图像处理装置，包括：像素数变换部，用于处理由多个区域构成的输入图像数据，每个区域由具有像素数变换的多个像素表示，通过对像素执行插值或去除。它还包括一个区域判定值提取部分，用于基于表示由目标像素和目标像素周围的多个像素构成的块的特性的特征量，提取目标像素属于的区域的区域判定值，图像数据的像素被认为是目标像素。基于增加或减少区域中的像素数量的变换，控制器控制要应用于区域的滤波处理和像素数变换处理的顺序。最后，包括区域判定值变换单元，用于通过从输入图像数据中提取出的区域判定值的内插或解除来计算用像素数变换处理处理的各区域的区域判定值。

63. 发明授权

US5794097A Image forming device with residual charge removal control 失效
标题翻译：具有残留电荷去除控制的图像形成装置
公开(公告)号：US5794097A
公开(公告)日：1998-08-11
申请号：US577918
申请日：1995-12-21
申请人： Kouji Shinkawa , Masaaki Ohtsuki , Mihoko Okada , Mitsuru Tokuyama , Hirofumi Sakita , Masatsugu Nakamura
发明人： Kouji Shinkawa , Masaaki Ohtsuki , Mihoko Okada , Mitsuru Tokuyama , Hirofumi Sakita , Masatsugu Nakamura
IPC分类号： G03G21/00 , G03G21/08 , G03G15/00
CPC分类号： G03G21/08 , G03G21/00
摘要： The present invention relates to image forming device such as copying machines and laser printers, which use an electrophotographic (xerognaphic) process. A simple control method without using any additional complex means can equalize a surface potentional of a light-sensitive drum to keep a light-quality of an image formed even for the first rotation of the light-sensitive drum. A charge-removal prohibiting means, a charge-potentional changing means and a developing bias-potentional changing means are controlled in accordance with an extent of a change of a surface potential of a light-sensitive body, which depends upon a light fatigue and an ambient temperature of the light-sensitive body and/or a pause after a preceding image process.
摘要翻译：本发明涉及使用电子照相（隐藏）方法的复印机和激光打印机等图像形成装置。不使用任何附加的复杂装置的简单的控制方法可以均衡感光鼓的表面电位，以保持即使对于感光鼓的第一次旋转形成的图像的光质。根据光疲劳的光敏体的表面电位的变化程度来控制电荷消除禁止装置，电荷 - 电位变化装置和显影偏置电位变化装置，感光体的环境温度和/或在前一图像处理之后的暂停。

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