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    Image forming apparatus which forms image data indicating whether a pixel is for a character or line
    1.
    发明授权
    Image forming apparatus which forms image data indicating whether a pixel is for a character or line 有权
    图像形成装置，其形成指示像素是针对字符还是线的图像数据

    公开(公告)号：US09466016B2

    公开(公告)日：2016-10-11

    申请号：US14796385

    申请日：2015-07-10

    申请人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    发明人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    IPC分类号： G06F15/00 ,  G06K1/00 ,  G06K15/02 ,  G06K15/14 ,  G06F3/12 ,  G06K15/00

    CPC分类号： G06K15/1874 ,  G06F3/1208 ,  G06F3/122 ,  G06K15/14 ,  G06K15/1822 ,  G06K15/4055 ,  H04N1/40062 ,  H04N1/40068

    摘要： An apparatus includes an image-processing-unit that generates tag information indicating whether each of pixels of a first-resolution image data is a pixel of a character or a line, a resolution-converting-unit that converts the first-resolution image data to image data with a second resolution higher than the first resolution, and a light-source-driving-unit that drives light-source according to the second-resolution image data. The resolution-converting-unit includes an image-matrix-acquiring-unit that acquires an image matrix being image data and tag information with the first resolution in an area containing a target-pixel and pixels around the target-pixel, a pattern-matching-unit that determines whether the target-pixel is a pixel of an edge of a character or a line based on the image matrix, and a first-converting-unit that, when the pixel is the edge pixel, converts the image data to image data with the second resolution of a pattern determined in accordance with a layout of the target-pixel.

    摘要翻译： 一种装置，包括：图像处理单元，生成指示第一分辨率图像数据的每个像素是字符或行的像素的标签信息;将第一分辨率图像数据转换为 具有比第一分辨率高的第二分辨率的图像数据，以及根据第二分辨率图像数据驱动光源的光源驱动单元。 分辨率转换单元包括图像矩阵获取单元，其在包含目标像素和目标像素周围的像素的区域中获取作为图像数据的图像矩阵和具有第一分辨率的标签信息，模式匹配 - 基于图像矩阵确定目标像素是字符边缘还是直线的像素的单位，以及当像素为边缘像素时，将图像数据转换为图像的第一转换单元 具有根据目标像素的布局确定的图案的第二分辨率的数据。

    Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10298807B2

    公开(公告)日：2019-05-21

    申请号：US15125422

    申请日：2015-03-10

    申请人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    发明人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    IPC分类号： G06K15/02 ,  H04N1/393 ,  B41J2/505 ,  H04N1/411 ,  H04N1/40 ,  G06K9/44 ,  H04N1/113

    摘要： An image forming apparatus includes an image processor, a converter, a light source driver, an identifying unit, and a pattern generator. The image processor generates image data of first resolution and generates tag information indicating whether to perform image processing and associated with pixels of the image data of first resolution. The converter converts the image data of first resolution to image data of a higher second resolution. The light source driver drives a light source using a modulation signal corresponding to the image data of second resolution. The identifying unit identifies a target pixel to be subjected to image processing in the image data of first resolution based on the tag information. The pattern generator generates an image-processed pixel pattern of the second resolution according to the target pixel. The converter converts the target pixel in the image data of first resolution to the generated image-processed pixel pattern.

    Image forming apparatus and image forming method
    3.
    发明授权
    Image forming apparatus and image forming method 有权
    图像形成装置及图像形成方法

    公开(公告)号：US09521295B2

    公开(公告)日：2016-12-13

    申请号：US14556745

    申请日：2014-12-01

    申请人： Hayato Fujita ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Muneaki Iwata

    发明人： Hayato Fujita ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Muneaki Iwata

    IPC分类号： G06T5/00 ,  B41J2/47 ,  H04N1/40 ,  H04N1/401

    CPC分类号： H04N1/40056 ,  H04N1/40025 ,  H04N1/401

    摘要： An image forming apparatus includes: a light source; and a light source control unit that supplies a pulse drive current according to image data to the light source. An amplitude of a part of the drive current corresponding to a specified pixel of the image data is larger than an amplitude of a part of the drive current corresponding to a normal pixel of the image data that is a pixel other than the specified pixel and the pulse width of the part of the drive current corresponding to the specified pixel is smaller than the pulse width of the part of the drive current corresponding to the normal pixel.

    摘要翻译： 一种图像形成装置，包括：光源; 以及光源控制单元，其将根据图像数据的脉冲驱动电流提供给光源。 对应于图像数据的指定像素的驱动电流的一部分的幅度大于与作为除了指定像素之外的像素的图像数据的法线像素相对应的驱动电流的一部分的幅度， 对应于指定像素的驱动电流的部分的脉冲宽度小于与正常像素对应的驱动电流的一部分的脉冲宽度。

    IMAGE FORMING APPARATUS
    5.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20160012322A1

    公开(公告)日：2016-01-14

    申请号：US14796385

    申请日：2015-07-10

    申请人： Muneaki IWATA ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    发明人： Muneaki IWATA ,  Masaaki Ishida ,  Atsufumi Omori ,  Naoto Watanabe ,  Hayato Fujita

    IPC分类号： G06K15/02 ,  G06F3/12 ,  G06K15/00 ,  G06K15/14

    CPC分类号： G06K15/1874 ,  G06F3/1208 ,  G06F3/122 ,  G06K15/14 ,  G06K15/1822 ,  G06K15/4055 ,  H04N1/40062 ,  H04N1/40068

    摘要： An apparatus includes an image-processing-unit that generates tag information indicating whether each of pixels of a first-resolution image data is a pixel of a character or a line, a resolution-converting-unit that converts the first-resolution image data to image data with a second resolution higher than the first resolution, and a light-source-driving-unit that drives light-source according to the second-resolution image data. The resolution-converting-unit includes an image-matrix-acquiring-unit that acquires an image matrix being image data and tag information with the first resolution in an area containing a target-pixel and pixels around the target-pixel, a pattern-matching-unit that determines whether the target-pixel is a pixel of an edge of a character or a line based on the image matrix, and a first-converting-unit that, when the pixel is the edge pixel, converts the image data to image data with the second resolution of a pattern determined in accordance with a layout of the target-pixel.

    摘要翻译： 一种装置，包括：图像处理单元，生成指示第一分辨率图像数据的每个像素是字符或行的像素的标签信息;将第一分辨率图像数据转换为 具有比第一分辨率高的第二分辨率的图像数据，以及根据第二分辨率图像数据驱动光源的光源驱动单元。 分辨率转换单元包括图像矩阵获取单元，其在包含目标像素和目标像素周围的像素的区域中获取作为图像数据的图像矩阵和具有第一分辨率的标签信息，模式匹配 - 基于图像矩阵确定目标像素是字符边缘还是直线的像素的单位，以及当像素为边缘像素时，将图像数据转换为图像的第一转换单元 具有根据目标像素的布局确定的图案的第二分辨率的数据。

    Image forming apparatus, image forming method, and method of producing printed material for generating a parallel line pattern of uniform concentration
    7.
    发明授权
    Image forming apparatus, image forming method, and method of producing printed material for generating a parallel line pattern of uniform concentration 有权
    图像形成装置，图像形成方法以及用于产生均匀浓度的平行线图案的印刷材料的制造方法

    公开(公告)号：US09298122B2

    公开(公告)日：2016-03-29

    申请号：US14268463

    申请日：2014-05-02

    申请人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita

    发明人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita

    IPC分类号： G06K15/00 ,  H04N1/40 ,  G03G15/043 ,  H04N1/405 ,  H04N1/409 ,  G03G15/04

    CPC分类号： G03G15/043 ,  G03G15/04027 ,  H04N1/40068 ,  H04N1/4058 ,  H04N1/4092

    摘要： An image forming apparatus includes: a pseudo-halftone processing unit that processes input image data to output image data of first resolution; a resolution converting unit that converts the image data of the first resolution into image data of second resolution that is higher than the first resolution; a modulation-signal generating unit that generates a modulation signal obtained by modulating the image data of the second resolution according to a clock signal; and a light-source driving unit that drives a light source according to the modulation signal. The pseudo-halftone processing unit converts a region of pixels having the same pixel value into a parallel line pattern that is formed with a plurality of parallel lines oblique relative to a direction of arrangement of pixels. The resolution converting unit generates the image data o in which each edge of the lines forming the parallel line pattern is smoothed.

    摘要翻译： 一种图像形成装置包括：伪半色调处理单元，其处理输入图像数据以输出第一分辨率的图像数据; 分辨率转换单元，其将第一分辨率的图像数据转换成高于第一分辨率的第二分辨率的图像数据; 调制信号生成单元，其生成通过根据时钟信号调制所述第二分辨率的图像数据而获得的调制信号; 以及根据调制信号驱动光源的光源驱动单元。 伪半色调处理单元将具有相同像素值的像素的区域转换为平行线图案，该平行线图案形成有相对于像素排列方向倾斜的多条平行线。 分辨率转换单元生成图像数据o，其中形成平行线图案的线的每个边缘被平滑化。

    Image forming apparatus and image forming method
    10.
    发明授权
    Image forming apparatus and image forming method 有权

    公开(公告)号：US10324397B2

    公开(公告)日：2019-06-18

    申请号：US15203081

    申请日：2016-07-06

    申请人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita ,  Takefumi Takizawa

    发明人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita ,  Takefumi Takizawa

    IPC分类号： G03G15/00 ,  G03G15/043

    摘要： An image forming apparatus includes a photoconductor drum, a latent-image forming device, a developing device, a density detecting device, and a processing device. The density detecting device is configured to detect densities at a plurality of positions in a main-scanning direction on a developed image. The processing device is configured to acquire at least two light-amount correction tables respectively associated with at least two positions of the plurality of positions in the main-scanning direction on the developed image, the light-amount correction tables being for reducing density variations in a sub-scanning direction at the at least two positions, and correct, for each scan, a set point for setting an amount of light of a light source based on a difference in corresponding correction data between two light-amount correction tables respectively associated with two adjacent positions of the at least two light-amount correction tables.