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11. 发明授权

US07751088B2 High-image-quality halftone process 失效
标题翻译：高图像质量的半色调过程
公开(公告)号：US07751088B2
公开(公告)日：2010-07-06
申请号：US11450326
申请日：2006-06-09
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： H04N1/405
CPC分类号： H04N1/4053 , H04N1/4015
摘要： This invention provides a method for generating a dither matrix includes: setting an evaluation function for calculating an evaluation value of the dither matrix; providing a dither matrix as an initial state which stores in respective elements each of a plurality of threshold values for deciding presence or absence of dot formation for each pixel according to an input tone value; fixing an element for storing a threshold value in an increasing order from a smaller threshold value while transposing at least one of the plurality of threshold values stored in a part of the elements and a threshold value stored in another part of the elements; and outputting a dither matrix in which elements for storing are fixed with regard to at least part of the plurality of threshold values. The step of fixing an element for storing a threshold value includes: transposing mutually part of the threshold values whose elements for storing have not been fixed, among the plurality of threshold values; calculating an evaluation value of the dither matrix in which the threshold values have been transposed, using the evaluation function; fixing an element for storing a smallest evaluation threshold value among the threshold values whose elements for storing have not been fixed, according to a compliance of the evaluation value to a predetermined criterion; and repeating the steps from the transposing step to the fixing step until elements for storing at least part of the plurality of threshold values are fixed.
摘要翻译：本发明提供了一种产生抖动矩阵的方法，包括：设置用于计算抖动矩阵的评估值的评估函数; 提供抖动矩阵作为初始状态，其根据输入色调值在每个像素存储用于决定每个像素的存在或不存在点的多个阈值中的每个元素中的每个元素; 固定用于从更小的阈值以递增的顺序存储阈值的元件，同时转置存储在元件的一部分中的多个阈值中的至少一个和存储在元件的另一部分中的阈值; 并且输出其中关于多个阈值的至少一部分固定存储元件的抖动矩阵。固定用于存储阈值的元素的步骤包括：在多个阈值之间相互调整存储元素的一部分阈值尚未固定的部分; 使用评价函数计算已经转置了阈值的抖动矩阵的评估值; 根据评估值与预定标准的一致性，固定用于存储其用于存储的元素的阈值中的最小评估阈值的元素尚未固定; 并重复从转置步骤到定影步骤的步骤，直到存储至少部分多个阈值的元素是固定的。

12. 发明授权

US07726769B2 Determination of ink ejection amount error for a printer 有权
标题翻译：确定打印机的喷墨量错误
公开(公告)号：US07726769B2
公开(公告)日：2010-06-01
申请号：US12150710
申请日：2008-04-29
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J29/393
CPC分类号： B41J29/393
摘要： A plurality of same ink nozzle arrays are provided, and multiple color patches are printed with mutually different dot recording rates respectively using one of the same ink nozzle arrays. Color specification value of the plurality of color patches is measured for each same ink nozzle array. The ink ejection amount error of each same ink nozzle array is determined based on the color specification values of the plurality of color patches for each same ink nozzle array. It is also possible to select among the plurality of color patches a preferable color patch that is closest to a specified reference color patch, and to determine the ink ejection amount error from the dot recording rate of the preferable color patch.
摘要翻译：提供多个相同的墨水喷嘴阵列，并且分别使用相同的墨水喷嘴阵列之一以相互不同的点记录速率打印多个色块。对于每个相同的墨水喷嘴阵列测量多个色块的颜色规格值。基于每个相同的墨水喷嘴阵列的多个色标的颜色规格值来确定每个相同的墨水喷嘴阵列的喷墨量误差。还可以在多个色标中选择最接近指定的参考色块的优选色标，并且从优选色标的点记录速率确定墨喷射量误差。

13. 发明申请

US20050190216A1 Determination of ink ejection amount error for a printer 有权
标题翻译：确定打印机的喷墨量错误
公开(公告)号：US20050190216A1
公开(公告)日：2005-09-01
申请号：US11043497
申请日：2005-01-25
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J2/01 , B41J29/38 , B41J29/393
CPC分类号： B41J29/393
摘要： A plurality of same ink nozzle arrays are provided, and multiple color patches are printed with mutually different dot recording rates respectively using one of the same ink nozzle arrays. Color specification value of the plurality of color patches is measured for each same ink nozzle array. The ink ejection amount error of each same ink nozzle array is determined based on the color specification values of the plurality of color patches for each same ink nozzle array. It is also possible to select among the plurality of color patches a preferable color patch that is closest to a specified reference color patch, and to determine the ink ejection amount error from the dot recording rate of the preferable color patch.
摘要翻译：提供多个相同的墨水喷嘴阵列，并且分别使用相同的墨水喷嘴阵列之一以相互不同的点记录速率打印多个色块。对于每个相同的墨水喷嘴阵列测量多个色块的颜色规格值。基于每个相同的墨水喷嘴阵列的多个色标的颜色规格值来确定每个相同的墨水喷嘴阵列的喷墨量误差。还可以在多个色标中选择最接近指定的参考色块的优选色标，并且从优选色标的点记录速率确定墨喷射量误差。

14. 发明申请

US20050185005A1 Calibration of ink ejection amount for a printer 有权
标题翻译：校准打印机的墨水喷射量
公开(公告)号：US20050185005A1
公开(公告)日：2005-08-25
申请号：US11040803
申请日：2005-01-20
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J2/01 , B41J2/05 , B41J2/07 , B41J2/165 , B41J2/205 , B41J2/21 , B41J2/505 , B41J29/393
CPC分类号： B41J2/04586 , B41J2/04506 , B41J2/07 , B41J2/2054 , B41J2/2056 , B41J2/2103 , B41J2/2132 , B41J2/5054 , B41J29/393
摘要： An ink ejection amount error is acquired for each of a plurality of same ink nozzle arrays for ejecting same ink. Line sets consisting of N adjacent main scan lines are classified into a plurality of line set types LT11 to LT13 according to a ratio of the pixel counts allocated to the plurality of nozzle arrays on the line set. Using the ink ejection amount error of each nozzle array, the average ink ejection error δ is obtained for each of the line set types LT11 to LT13. The ink amount data on each main scan line of each line set is corrected using the average ink ejection amount error for each line set.
摘要翻译：对于多个相同的喷墨阵列中的每一个，为了喷射相同的墨水，获得喷墨量误差。根据分配给线组上的多个喷嘴阵列的像素数的比例，将由N个相邻主扫描线组成的线组分类为多个线组类型LT11至LT13。使用每个喷嘴阵列的喷墨量误差，针对每个线组类型LT11至LT13获得平均喷墨误差δ。使用每行集合的平均喷墨量误差来校正每一行集合的每条主扫描线上的墨量数据。

15. 发明授权

US08376495B2 Printing apparatus and dither mask 有权
标题翻译：打印设备和抖动面罩
公开(公告)号：US08376495B2
公开(公告)日：2013-02-19
申请号：US12605833
申请日：2009-10-26
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J2/205
CPC分类号： B41J19/142
摘要： Provided is a printing apparatus that performs printing by moving a print head in main scan directions and sub scan directions relative to a printing medium, including: an input unit that inputs image data constituting an image; a halftone processing unit that converts the input image data to dot data indicating whether or not dots are formed; and a printing unit that performs printing by controlling ejection of ink from the print head based on the result of the halftone process, wherein, in a printing area where an ink duty is in a predetermined range, the printing unit forms dots by forward movement in which the print head relatively moves in one direction of the main scan directions and backward movement in which the print head relatively moves in the direction opposite to the one direction so that a forward-moving dot occurrence ratio that is a ratio of forming the dots by the forward movement and a backward-moving dot occurrence ratio that is a ratio of forming the dots by the backward movement are gradually increased with a biased magnitude relation as the ink duty is increased.
摘要翻译：提供一种打印装置，其通过相对于打印介质在主扫描方向和副扫描方向上移动打印头进行打印，包括：输入单元，其输入构成图像的图像数据; 半色调处理单元，将输入图像数据转换成指示是否形成点的点数据; 以及打印单元，其基于所述半色调处理的结果控制从所述打印头喷射墨水来进行打印，其中，在所述打印区域中，所述打印区域中的墨水占空比在预定范围内，所述打印单元通过向前移动形成点打印头相对于主扫描方向的一个方向相对移动，并且打印头沿与一个方向相反的方向相对移动的向后移动，使得作为形成点的比例的向前移动的点出现率为当墨水占空比增加时，以向后运动形成点的向前运动和反向移动的点出现比率随着偏置的大小关系而逐渐增加。

16. 发明授权

US08208176B2 Reduction of uneven print density 有权
标题翻译：减少不均匀的印刷密度
公开(公告)号：US08208176B2
公开(公告)日：2012-06-26
申请号：US11974021
申请日：2007-10-10
申请人： Toru Takahashi , Toshiaki Kakutani , Satoshi Yamazaki , Kazuyoshi Tanase
发明人： Toru Takahashi , Toshiaki Kakutani , Satoshi Yamazaki , Kazuyoshi Tanase
IPC分类号： G06K15/00
CPC分类号： G06K15/107
摘要： The invention provides a printing method of printing on a printing medium. The method includes: generating dot data that represents state of dot formation at each print pixel of a print image to be formed on the printing medium by performing a halftone process on image data that represents an input tone value of each pixel making up an original image; and generating the print image by forming dots on each of the print pixels according to the dot data. The halftone process determines the state of dot formation by using a dither matrix that stores a plurality of threshold values, the plurality of threshold values being used for determining state of dot formation at each of print pixels of the print image to be formed on the printing medium according to an input tone value. The dither matrix is a matrix that stores each of the plurality of threshold values in each element such that a mutual difference in dot density formed at each predetermined print pixel group according to each input tone value falls within a predetermined range. The predetermined print pixel group is a cluster of plural print pixels corresponding to each of a plurality of element groups that are created by dividing the dither matrix into preset numbers of elements.
摘要翻译：本发明提供一种在打印介质上进行打印的打印方法。该方法包括：通过对构成原始图像的每个像素的输入色调值的图像数据执行半色调处理，生成表示要在打印介质上形成的打印图像的每个打印像素处的点形成状态的点数据 ; 以及通过根据点数据在每个打印像素上形成点来生成打印图像。半色调处理通过使用存储多个阈值的抖动矩阵来确定点形成的状态，所述多个阈值用于确定在打印时要形成的打印图像的每个打印像素处的点形成的状态介质根据输入色调值。抖动矩阵是将每个元素中的多个阈值中的每一个存储在每个元素中的矩阵，使得根据每个输入色调值在每个预定打印像素组处形成的点密度的相互差异落在预定范围内。预定的打印像素组是通过将抖动矩阵分割成预定数量的元素而创建的多个元素组中的每一个对应的多个打印像素的簇。

17. 发明申请

US20080266608A1 Image processing device and printing apparatus for performing bidirectional printing 审中-公开
标题翻译：用于执行双向打印的图像处理装置和打印装置
公开(公告)号：US20080266608A1
公开(公告)日：2008-10-30
申请号：US11880946
申请日：2007-07-24
申请人： Satoshi Yamazaki , Toshiaki Kakutani , Toru Takahashi , Kazuyoshi Tanase
发明人： Satoshi Yamazaki , Toshiaki Kakutani , Toru Takahashi , Kazuyoshi Tanase
IPC分类号： G06K15/00
CPC分类号： G06K15/107 , B41J2/15 , B41J19/145 , B41J25/308 , H04N1/4051
摘要： The invention provides a printing method of performing printing on a print medium. The method includes: generating dot data representing a status of dot formation on each of print pixels of a print image to be formed on the print medium, by performing a halftone process on image data representing a input tone value of each of pixels constituting an original image; providing a print head and a platen; setting a platen gap as a distance between the print head and the platen to a single fixed value that is commonly applied to plural printing environments; and performing a main scan of the print head to form a dot in each of the print pixels on the print medium supported by the platen according to the dot data in each of a forward pass and a backward pass of the print head, for generating the print image. The performing includes combining dots formed on a first pixel position group with dots formed on a second pixel position group in a common print area to generate the print image, the first pixel position group including multiple print pixels as objects of dot formation in the forward pass of the print head, the second pixel position group including multiple print pixels as objects of dot formation in the backward pass of the print head. The generating dot data includes setting a condition of the halftone process to reduce potential deterioration of picture quality due to a positional misalignment between the dots formed on the first pixel position group and the dots formed on the second pixel position group.
摘要翻译：本发明提供一种在打印介质上执行打印的打印方法。该方法包括：通过对表示构成原始图像的每个像素的输入色调值的图像数据执行半色调处理，生成表示要在打印介质上形成的打印图像的每个打印像素上的点形成状态的点数据图片; 提供打印头和压板; 将打印头和压板之间的距离设置为通常应用于多个打印环境的单个固定值的压板间隙; 以及执行打印头的主扫描，以在由打印头支持的打印介质上的每个打印像素中形成一个点，根据打印头的前进和后退遍历中的点数据，生成打印图像。执行包括将形成在第一像素位置组上的点与形成在公共打印区域中的第二像素位置组上的点组合以生成打印图像，第一像素位置组包括作为向前传播中的点形成的对象的多个打印像素所述第二像素位置组包括作为所述打印头的反向通过中的点形成的对象的多个打印像素。生成点数据包括设置半色调处理的条件，以减少由于形成在第一像素位置组上的点和形成在第二像素位置组上的点之间的位置偏移导致的图像质量的潜在劣化。

18. 发明授权

US07377613B2 Determination of ink ejection amount error for a printer 有权
公开(公告)号：US07377613B2
公开(公告)日：2008-05-27
申请号：US11043497
申请日：2005-01-25
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J29/393
CPC分类号： B41J29/393
摘要： A plurality of same ink nozzle arrays are provided, and multiple color patches are printed with mutually different dot recording rates respectively using one of the same ink nozzle arrays. Color specification value of the plurality of color patches is measured for each same ink nozzle array. The ink ejection amount error of each same ink nozzle array is determined based on the color specification values of the plurality of color patches for each same ink nozzle array. It is also possible to select among the plurality of color patches a preferable color patch that is closest to a specified reference color patch, and to determine the ink ejection amount error from the dot recording rate of the preferable color patch.

19. 发明申请

US20080043257A1 Image processing device and method for generating a conversion table 审中-公开
标题翻译：用于生成转换表的图像处理装置和方法
公开(公告)号：US20080043257A1
公开(公告)日：2008-02-21
申请号：US11654902
申请日：2007-01-17
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： G06K15/10
CPC分类号： H04N1/40087
摘要： Small area dither matrices including a consolidation of a specified number of threshold values are taken out from within a large area dither matrix, and the plurality of threshold values contained in this are realigned in size sequence and recorded, and initial data is prepared in which is recorded arrangement restoration data representing the arrangement of the threshold values within this small area dither matrix. Then, for each small area dither matrix, a dot arrangement pattern is generated across the scope of the values that the image data can have based on the previously described threshold value data and arrangement data, and this is recorded in the conversion table. By working in this way, it is possible to easily realize the process of converting image data to a dot arrangement pattern formed on the printing medium.
摘要翻译：从大面积抖动矩阵中取出包括指定数量的阈值的合并的小区域抖动矩阵，并且包含在其中的多个阈值在大小顺序上重新排列并记录，并且准备初始数据，其中表示在该小区域抖动矩阵内的阈值排列的记录排列恢复数据。然后，对于每个小区域抖动矩阵，基于先前描述的阈值数据和排列数据跨越图像数据可以具有的值的范围产生点布置图案，并且将其记录在转换表中。通过这样工作，可以容易地实现将图像数据转换为形成在打印介质上的点布置图案的处理。

20. 发明授权

US07255417B2 Calibration of ink ejection amount for a printer 有权
标题翻译：校准打印机的墨水喷射量
公开(公告)号：US07255417B2
公开(公告)日：2007-08-14
申请号：US11040803
申请日：2005-01-20
申请人： Satoshi Yamazaki , Toshiaki Kakutani
发明人： Satoshi Yamazaki , Toshiaki Kakutani
IPC分类号： B41J29/393 , B41J29/38
CPC分类号： B41J2/04586 , B41J2/04506 , B41J2/07 , B41J2/2054 , B41J2/2056 , B41J2/2103 , B41J2/2132 , B41J2/5054 , B41J29/393
摘要： An ink ejection amount error is acquired for each of a plurality of same ink nozzle arrays for ejecting same ink. Line sets consisting of N adjacent main scan lines are classified into a plurality of line set types LT11 to LT13 according to a ratio of the pixel counts allocated to the plurality of nozzle arrays on the line set. Using the ink ejection amount error of each nozzle array, the average ink ejection error δ is obtained for each of the line set types LT11 to LT13. The ink amount data on each main scan line of each line set is corrected using the average ink ejection amount error for each line set.
摘要翻译：对于多个相同的喷墨阵列中的每一个，为了喷射相同的墨水，获得喷墨量误差。根据分配给线组上的多个喷嘴阵列的像素数的比例，将由N个相邻主扫描线组成的线组分类为多个线组类型LT11至LT13。使用每个喷嘴阵列的喷墨量误差，针对每个线组类型LT11至LT13获得平均喷墨误差δ。使用每行集合的平均喷墨量误差来校正每一行集合的每条主扫描线上的墨量数据。

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