公开(公告)号：US5852454A

公开(公告)日：1998-12-22

申请号：US634989

申请日：1996-04-19

申请人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

发明人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

IPC分类号： H04N1/60 ,  B41J2/21

CPC分类号： H04N1/6022

摘要： In an image processing device for recording images with Y, M, and C color ink, a received Bk image is recorded with a color more similar to an original black color and solves a problem caused by too much amount of ejected ink such as bleeding with other colors or feathering. An image data consisting of four color elements of YMCBk is entered from a host computer, a Bk conversion unit converts the Bk element to respective Y, M, and C elements by masking of respective Y, M, and C elements generated randomly for the entered Bk element image data, and an image synthesizing unit synthesizes the converted YMC elements with the entered YMC elements. Then, an image recording unit for forming an image with three colors of YMC forms an image based on the synthesized YMC elements and records the image on a recording medium with ejecting YMC ink from a recording head.

摘要翻译： 在用Y，M和C彩色墨水记录图像的图像处理装置中，以与原始黑色相似的颜色记录接收到的Bk图像，并且解决由于过量喷射的墨水引起的问题，例如渗出 其他颜色或羽毛。 由主计算机输入由YMCBk的四个颜色元素组成的图像数据，Bk转换单元通过对输入的随机生成的相应的Y，M和C元素进行掩蔽来将Bk元素转换为相应的Y，M和C元素 Bk元素图像数据和图像合成单元将转换的YMC元素与输入的YMC元素合成。 然后，用于形成具有三色YMC的图像的图像记录单元基于合成的YMC元件形成图像，并且从记录头弹出YMC墨水将图像记录在记录介质上。

公开(公告)号：US5280310A

公开(公告)日：1994-01-18

申请号：US872924

申请日：1992-04-23

申请人： Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Atsushi Arai ,  Hitoshi Nishikori ,  Osamu Iwasaki

发明人： Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Atsushi Arai ,  Hitoshi Nishikori ,  Osamu Iwasaki

IPC分类号： B41J2/05 ,  B41J2/01

CPC分类号： B41J2/04525 ,  B41J2/04528 ,  B41J2/04543 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2002/14362

摘要： An ink is ejected at the same timing from ejection orifices in a number corresponding to an ink quantity 7% or less of an ink quantity ejected from all the ejection enabled ejection orifices of a plurality of ejection orifices of a recording head, and the ink ejection period from all the ejection enabled ejection orifices is set to be 70% or more of the driving period. Since the quantity of an ink ejected per unit time is minimized, and the negative pressure level generated in a common ink chamber can be set to be closest to normal pressure, the amplitude of a refill oscillation is minimized to stabilize ejection, and the driving frequency can be further increased.

摘要翻译： 在与喷墨孔相同的时刻，墨水以对应于从记录头的多个喷射口的所有喷射口喷出口喷出的墨量的7％以下的墨量喷射，喷墨 所有喷射启动喷射口的时间段被设定为驾驶时间的70％以上。 由于每单位时间喷射的墨量最小化，并且可以将普通墨水室中产生的负压水平设定为最接近正常压力，因此使再充电振动的振幅最小化以稳定喷射，驱动频率 可以进一步增加。

公开(公告)号：US20080143776A1

公开(公告)日：2008-06-19

申请号：US11954793

申请日：2007-12-12

申请人： Yuji Konno ,  Hiroshi Tajika ,  Hitoshi Nishikori ,  Daisaku Ide ,  Hideaki Takamiya ,  Kiichiro Takahashi ,  Toshiyuki Chikuma

发明人： Yuji Konno ,  Hiroshi Tajika ,  Hitoshi Nishikori ,  Daisaku Ide ,  Hideaki Takamiya ,  Kiichiro Takahashi ,  Toshiyuki Chikuma

IPC分类号： B41J29/393

CPC分类号： B41J29/393 ,  B41J2/2132 ,  H04N1/6013

摘要： Printing can be properly performed on a print medium other than print media preset in accordance with print modes of a printer. Specifically, when the print medium other than the print media preset in accordance with the print modes is used, patches are printed on the print medium in each combination of the ink ejection amount and the number of passes, and information regarding each evaluation of granularity and banding based on colorimetry of the patches is obtained for each combination of the ink ejection amount and the number of passes. Next, a combination of the maximum ink ejection amount and the maximum number of passes is selected from the combinations that each evaluation of the granularity and the banding satisfies a certain level. Then, a print mode having a combination nearest the combination is selected from the plurality of print modes.

摘要翻译： 可以在打印介质上正确执行打印，而不是根据打印机的打印模式预设的打印介质。 具体而言，当使用除了根据打印模式预设的打印介质之外的打印介质时，以喷墨量和通行数的组合的方式将打印印刷在打印介质上，以及关于粒度的每个评估的信息和 对于喷墨量和通过次数的每个组合，获得基于贴片的比色法的条带。 接下来，从粒度和条带的每个评价满足一定水平的组合中选择最大喷墨量和最大通过次数的组合。 然后，从多个打印模式中选择具有最接近组合的组合的打印模式。

公开(公告)号：US07819497B2

公开(公告)日：2010-10-26

申请号：US11954793

申请日：2007-12-12

申请人： Yuji Konno ,  Hiroshi Tajika ,  Hitoshi Nishikori ,  Daisaku Ide ,  Hideaki Takamiya ,  Kiichiro Takahashi ,  Toshiyuki Chikuma

发明人： Yuji Konno ,  Hiroshi Tajika ,  Hitoshi Nishikori ,  Daisaku Ide ,  Hideaki Takamiya ,  Kiichiro Takahashi ,  Toshiyuki Chikuma

IPC分类号： B41J29/393

CPC分类号： B41J29/393 ,  B41J2/2132 ,  H04N1/6013

摘要： Printing can be properly performed on a print medium other than print media preset in accordance with print modes of a printer. Specifically, when the print medium other than the print media preset in accordance with the print modes is used, patches are printed on the print medium in each combination of the ink ejection amount and the number of passes, and information regarding each evaluation of granularity and banding based on colorimetry of the patches is obtained for each combination of the ink ejection amount and the number of passes. Next, a combination of the maximum ink ejection amount and the maximum number of passes is selected from the combinations that each evaluation of the granularity and the banding satisfies a certain level. Then, a print mode having a combination nearest the combination is selected from the plurality of print modes.

摘要翻译： 可以在打印介质上正确执行打印，而不是根据打印机的打印模式预设的打印介质。 具体而言，当使用除了根据打印模式预设的打印介质之外的打印介质时，以喷墨量和通行数的组合的方式将打印印刷在打印介质上，以及关于粒度的每个评估的信息和 对于喷墨量和通过次数的每个组合，获得基于贴片的比色法的条带。 接下来，从粒度和条带的每个评价满足一定水平的组合中选择最大喷墨量和最大通过次数的组合。 然后，从多个打印模式中选择具有最接近组合的组合的打印模式。

公开(公告)号：US07889394B2

公开(公告)日：2011-02-15

申请号：US11745000

申请日：2007-05-07

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

IPC分类号： H04N1/40 ,  G06K15/00

CPC分类号： H04N1/52 ,  H04N1/58

摘要： An image processing apparatus for processing multilevel image data including values of respective color components includes an adding unit configured to add quantization errors to the respective values of the color components of a target pixel, an output determination unit configured to perform quantization to determine output values of the respective color components of the target pixel based on a combination of the values of the respective color components to which the quantization errors are added, and an error calculation unit configured to calculate quantization errors of the respective color components of the target pixel based on the output values of the respective color components and the values of the respective color components to which the quantization errors are added. In addition, a distribution weight determination unit is configured to determine distribution weights for the respective color components in accordance with a combination of the values of the respective color components of the target pixel, and an error diffusion unit is configured to distribute the calculated quantization errors of the respective color components of the target pixel to values of the respective color components of neighboring pixels in accordance with the determined distribution weights.

摘要翻译： 一种图像处理装置，用于处理包括各颜色分量的多值图像数据，包括：加法单元，被配置为向目标像素的颜色分量的各个值加上量化误差;输出确定单元，被配置为执行量化以确定输出值 基于添加了量化误差的各个颜色成分的值的组合的目标像素的各个颜色分量，以及错误计算单元，被配置为基于所述目标像素的各个颜色分量的量化误差来计算目标像素的各个颜色分量 各颜色分量的输出值和相加颜色分量的值相加。 另外，分发权重确定单元被配置为根据目标像素的各个颜色分量的值的组合来确定各个颜色分量的分配权重，并且误差扩散单元被配置为分配所计算的量化误差 根据确定的分布权重将目标像素的各个颜色分量的各个颜色分量的值分配给相邻像素的各个颜色分量的值。

公开(公告)号：US07265874B2

公开(公告)日：2007-09-04

申请号：US10410347

申请日：2003-04-10

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

IPC分类号： H04N1/40 ,  G06K15/00

CPC分类号： H04N1/52 ,  H04N1/58

摘要： An image processing apparatus processes multivalued color image data that includes a plurality of color components. The apparatus includes an adding unit to add per-color-component quantization error values from a neighboring pixel to respective ones of a plurality of color components included in a pixel of interest, and a quantization unit to correlate a sum of the values of each of the color components to which the error value has been added by the adding unit to a sum of values after conversion, and deciding the value of each color component after conversion upon distributing the sum of pixel values after the conversion in accordance with the ratio of each of the color components before conversion. In addition, a coefficient decision unit decides diffusion coefficients, which diffuse quantization error to neighboring pixels, based upon the value of each of the plurality of color components included in the pixel of interest.

摘要翻译： 图像处理装置处理包括多个颜色分量的多值彩色图像数据。 该装置包括：加法单元，用于将来自相邻像素的每颜色分量量化误差值相加到感兴趣像素中包括的多个颜色分量中的各个颜色分量;以及量化单元，用于将每个颜色分量量化误差值的和 由加法单位将误差值添加到转换后的值之和的颜色分量，并且根据转换后的像素值的和分配转换后的每个颜色分量的值，并根据每个颜色分量 的颜色成分转换前。 此外，系数判定单元基于包括在感兴趣像素中的多个颜色成分中的每一个的值来决定将量化误差扩散到相邻像素的扩散系数。

公开(公告)号：US20070206245A1

公开(公告)日：2007-09-06

申请号：US11745000

申请日：2007-05-07

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

IPC分类号： H04N1/46

CPC分类号： H04N1/52 ,  H04N1/58

摘要： Disclosed are an image processing apparatus and method for the purpose of preventing overlapping of dots between two colors in low-density areas in color pseudo-grayscale processing, thereby obtaining excellent placement of the dots of each color. When a color image is binarized, an error is added to a respective one of color components (I0,I1), after which output decision means (2) decides an output value in accordance with the value of the sum in such a manner that the sum of pixel values after conversion will be rendered constant. Error calculation means (3-0, 3-1) calculate differences between pixel values before and after binarization as errors, and error diffusion means (9-0, 9-1) calculate values to be diffused to a neighboring pixel. Weighting coefficients used at such time are decided in accordance with combinations of values of the color components (I0,I1) of pixel values in the original image. The output value decided by the output decision means (2) is printed out by a printer or the like.

摘要翻译： 公开了一种图像处理装置和方法，其目的是防止在彩色伪灰度处理中的低密度区域中的两种颜色之间的点重叠，从而获得每种颜色的点的优异布置。 当彩色图像被二值化时，将错误添加到相应的一个颜色分量（I <0>，1 <1>）中，之后输出判定装置（2）决定 输出值根据总和的值，使得转换后的像素值的总和将变为恒定。 误差计算装置（3 - 0，3 - 1）计算二值化之前和之后的像素值之间的差异作为误差，误差扩散装置（9 - 0,9 - 1）计算要扩散到相邻像素的值。 根据原始图像中的像素值的颜色分量（I SUB> 0，I 1> 1）的值的组合来确定在这种时间使用的加权系数。 由输出判定装置（2）决定的输出值由打印机等打印出来。

公开(公告)号：US06352327B1

公开(公告)日：2002-03-05

申请号：US09191531

申请日：1998-11-13

申请人： Kentaro Yano ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu

发明人： Kentaro Yano ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu

IPC分类号： B41J2938

CPC分类号： B41J2/17546 ,  B41J2/04543 ,  B41J2/0458

摘要： A printing apparatus and print control method, capable of using plural types of printheads, can achieve high throughput by performing optimized print control in accordance with the type of printhead and the number of printheads used. In a case where the printing apparatus adopting such print control method includes, e.g., four printheads, and performs printing on a print medium by reciprocally scanning the printheads, detection is first performed as to whether only one printhead which discharges black ink is mounted or four printheads which respectively discharge black, yellow, cyan and magenta ink are mounted; decision is made on a printing period of the printhead based on the detected result; then decision is made on a scanning speed of the printhead based on the decided printing period; and the printhead is driven based on the decided printing period and scanning speed to perform printing.

摘要翻译： 能够使用多种类型的打印头的打印设备和打印控制方法可以通过根据打印头的类型和使用的打印头的数量执行优化的打印控制来实现高产量。 在采用这种打印控制方法的打印设备包括例如四个打印头的情况下，并且通过往复扫描打印头在打印介质上进行打印时，首先执行检测是否仅安装一个排出黑色墨水的打印头或四个 安装分别排出黑色，黄色，青色和品红色墨水的打印头; 基于检测结果在打印头的打印周期进行判定; 然后基于所决定的打印周期对打印头的扫描速度进行判定; 并且基于所决定的打印周期和扫描速度来驱动打印头以执行打印。

公开(公告)号：US06305775B1

公开(公告)日：2001-10-23

申请号：US08881273

申请日：1997-06-24

申请人： Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

发明人： Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

IPC分类号： B41J2938

CPC分类号： B41J2/2128 ,  G06K15/102

摘要： Each nozzle of an ink-jet head has heaters having different heating capacities, and in accordance with the heater driven, a diameter of an ink dot formed by ink which is discharged from the nozzle is changed, thereby printing a large dot or a small dot. When multi-value image data is inputted, the multi-value image data is modulated such that a pixel having high density is printed with both the large dot and small dot. On the basis of the modulated print data, any of the heaters included in each nozzle of the ink-jet head is driven, whereby printing an image having tones based on the multi-value image data.

摘要翻译： 喷墨头的每个喷嘴具有不同的加热能力的加热器，并且根据加热器驱动，改变从喷嘴排出的由油墨形成的墨点的直径，从而打印大点或小点 。 当输入多值图像数据时，多值图像数据被调制，使得具有高密度的像素被打印成大点和小点。 基于调制的打印数据，驱动包括在喷墨头的每个喷嘴中的任何加热器，由此基于多值图像数据打印具有色调的图像。

公开(公告)号：US06328403B1

公开(公告)日：2001-12-11

申请号：US09307766

申请日：1999-05-10

申请人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

发明人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

IPC分类号： B41J2205

CPC分类号： G06K15/107 ,  G06K2215/0094

摘要： Multi-valued image data is separated into data in units of nozzle groups of the individual colors of a printhead, and each divided multi-valued image data is converted into n-valued image data consisting of a plurality of bits. Based on the n-valued image data of the corresponding colors, print codes are generated and are transmitted to a printer apparatus. The printer apparatus receives the print codes, stores them in print buffers of the corresponding colors, and generates print data based on the print codes using mask patterns set in correspondence with image data of the individual colors. The print timing in each scan of the printhead is determined in accordance with the significant bit position in the print data, and an image is printed on the basis of the print data by multi-pass printing.

摘要翻译： 将多值图像数据以打印头的各种颜色的喷嘴组为单位分离成数据，并将每个分割的多值图像数据转换为由多个位组成的n值图像数据。 基于相应颜色的n值图像数据，生成打印代码并将其发送到打印机装置。 打印机装置接收打印代码，将它们存储在相应颜色的打印缓冲器中，并且使用根据各种颜色的图像数据设置的掩模图案，基于打印代码生成打印数据。 根据打印数据中的有效位位置来确定打印头的每次扫描中的打印定时，并且通过多遍打印基于打印数据打印图像。