公开(公告)号：US09616658B2

公开(公告)日：2017-04-11

申请号：US15166358

申请日：2016-05-27

申请人： BROTHER KOGYO KABUSHIKI KAISHA

发明人： Katsuaki Suzuki ,  Katsunori Sakai ,  Motohiro Tsuboi

IPC分类号： B41J2/045

CPC分类号： B41J2/04516 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/04588 ,  B41J2/04595 ,  B41J2/04596

摘要： A waveform selecting process includes selecting one of a plurality of kinds of driving waveforms for each of a plurality of dot elements, based on a density value set to each of the plurality of dot elements in image data. The waveform selecting process includes, for a dot element array of each of the plurality of ejection ports: determining whether a dot element corresponding to a target dot has a second density value and determining whether a subsequent dot element corresponding to a subsequent dot has a first density value and, when both determinations are positive, setting the dot element corresponding to the target dot as a correction-target dot element, the subsequent dot being subsequent to the target dot in the formation order; and selecting one of a first driving waveform and a second driving waveform as a driving waveform of a correction-target dot element.

公开(公告)号：US09114610B2

公开(公告)日：2015-08-25

申请号：US14226253

申请日：2014-03-26

申请人： BROTHER KOGYO KABUSHIKI KAISHA

发明人： Katsuaki Suzuki

IPC分类号： B41J29/38 ,  B41J2/12 ,  G06K15/02 ,  H04N1/407 ,  H04N1/40 ,  H04N1/405

CPC分类号： B41J2/12 ,  G06K15/1868 ,  G06K15/1878 ,  H04N1/40087 ,  H04N1/4052 ,  H04N1/407

摘要： A corrector performs designating a target pixel belonging to a pixel array corresponding to an ejection port, the target pixel being designated sequentially as one of pixels arranged in an array direction, the pixel array being formed with the pixels in the N-value image data corresponding to dots formed by the ejection port respectively, allocating a corresponding one of N representative tone values out of L tone values of L tones to a tone value of the target pixel of the N-value image data, adding the correction value to a representative tone value of the target pixel, thereby obtaining a corrected tone value of the target pixel, quantizing the corrected tone value of the target pixel to N tones; and diffusing an error generated in quantizing the corrected tone value to the corrected tone value of an adjacent pixel adjacent to the target pixel in the array direction.

摘要翻译： 校正器执行指定属于与排出口对应的像素阵列的目标像素，目标像素被顺序地指定为排列在阵列方向上的像素之一，像素阵列与N值图像数据对应的像素形成 分别由排出口形成的点，将L个音调的L个音调值中的N个代表性音调值中的相应一个分配给N值图像数据的目标像素的乐音值，将校正值与代表音调相加 从而获得目标像素的校正色调值，将目标像素的校正色调值量化为N个色调; 并将在量化校正后的音调中产生的误差扩散到与阵列方向上的目标像素相邻的相邻像素的校正色调值。

公开(公告)号：US09738089B2

公开(公告)日：2017-08-22

申请号：US15071770

申请日：2016-03-16

申请人： Brother Kogyo Kabushiki Kaisha

发明人： Katsuaki Suzuki

IPC分类号： B41J2/21

CPC分类号： B41J2/2146 ,  B41J2/2135

摘要： A liquid ejection apparatus corrects image data by: setting a to-be-corrected dot element; acquiring a correction amount based on an offset between a formation position at which a dot corresponding to the to-be-corrected dot element is to be formed on a recording medium while the recording medium is conveyed the reference conveyance amount per unit time and a formation position at which a dot corresponding to the to-be-corrected dot element is to be formed while the recording medium is conveyed a conveyance amount different from the reference conveyance amount per unit time; and executing correction on the to-be-corrected dot element. The correction is executed by setting a density value for the to-be-corrected dot element as that for corresponding one dot element whose data array order is shifted from a data array order of the to-be-corrected dot element by the number of dot elements corresponding to the correction amount.

公开(公告)号：US08786903B2

公开(公告)日：2014-07-22

申请号：US13626576

申请日：2012-09-25

申请人： Brother Kogyo Kabushiki Kaisha

发明人： Katsuaki Suzuki

IPC分类号： H04N1/60

CPC分类号： G06K15/1871 ,  H04N1/58

摘要： Image boundary detection devices and methods include processes. Processes include setting an image recording mode to a second recording mode. First and second recording modes utilize first and second density values, respectively. Second density values are less than corresponding first density values. Processes include reducing first density values to second density values when the second recording mode is set. Processes include setting an image boundary determination threshold to one of a first and second threshold value when a respective one of the first and second recording mode is set. The second threshold value is less than the first threshold value. Processes include calculating density gradient values based on one of the first and second density value when the respective one of the first and second recording mode is set. Processes include determining whether pixels are image boundaries using density gradient values and the image boundary determination threshold.

摘要翻译： 图像边界检测装置和方法包括处理。 处理过程包括将图像记录模式设置为第二记录模式。 第一和第二记录模式分别利用第一和第二密度值。 第二密度值小于相应的第一密度值。 当设置第二记录模式时，过程包括将第一密度值减小到第二浓度值。 处理包括当设置第一和第二记录模式中的相应一个时，将图像边界确定阈值设置为第一和第二阈值之一。 第二阈值小于第一阈值。 过程包括当设置第一和第二记录模式中的相应一个时，基于第一和第二浓度值之一来计算密度梯度值。 过程包括使用密度梯度值和图像边界确定阈值确定像素是图像边界。

公开(公告)号：US20160271937A1

公开(公告)日：2016-09-22

申请号：US15071770

申请日：2016-03-16

申请人： Brother Kogyo Kabushiki Kaisha

发明人： Katsuaki Suzuki

IPC分类号： B41J2/045

CPC分类号： B41J2/2146 ,  B41J2/2135

摘要： A liquid ejection apparatus corrects image data by: setting a to-be-corrected dot element; acquiring a correction amount based on an offset between a formation position at which a dot corresponding to the to-be-corrected dot element is to be formed on a recording medium while the recording medium is conveyed the reference conveyance amount per unit time and a formation position at which a dot corresponding to the to-be-corrected dot element is to be formed while the recording medium is conveyed a conveyance amount different from the reference conveyance amount per unit time; and executing correction on the to-be-corrected dot element. The correction is executed by setting a density value for the to-be-corrected dot element as that for corresponding one dot element whose data array order is shifted from a data array order of the to-be-corrected dot element by the number of dot elements corresponding to the correction amount.

摘要翻译： 液体喷射装置通过以下操作来校正图像数据：设置待校正的点元素; 在记录介质被传送到每单位时间的基准传送量和形成时，基于在记录介质上形成与要校正的点元素相对应的点的形成位置之间的偏移获取校正量 当记录介质被传送与每单位时间的参考传送量不同的传送量时，将要形成与待校正的点元素相对应的点的位置; 并对待校正的点元素执行校正。 通过将待校正的点元素的浓度值设置为数据数组顺序从待校正的点元素的数据排列顺序移位点数的相应一个点元素的浓度值，执行校正 元素对应于校正量。