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51. 发明授权

US06631976B2 Control of ink jet nozzle prefiring 失效
标题翻译：控制喷墨喷嘴预喷
公开(公告)号：US06631976B2
公开(公告)日：2003-10-14
申请号：US09291162
申请日：1999-04-14
申请人： Akihiko Hamamoto , Akitoshi Yamada , Hiromitsu Hirabayashi
发明人： Akihiko Hamamoto , Akitoshi Yamada , Hiromitsu Hirabayashi
IPC分类号： B41J2165
CPC分类号： B41J2/04528 , B41J2/04553 , B41J2/04563 , B41J2/0458 , B41J2/04588 , B41J2/04591 , B41J2/16526
摘要： An ink jet printing apparatus which performs printing by using a print head. The print head has at least a predetermined number of nozzles to eject ink. The apparatus includes a first prefiring mechanism for causing the print head to perform a prefiring operation to eject ink from nozzles of the print head for maintaining printing quality after a first time interval during a printing operation. The apparatus also includes a driving mechanism for driving nozzles of the print head based on data to be printed, and a second prefiring mechanism for causing the print head to perform the prefiring operation in a case where a number of the nozzles to be driven is changed. Preferably, the apparatus further includes a shifting mechanism for causing the driving mechanism to drive the nozzles of the print head based on the first time interval during the printing operation so as to enhance a power of ejecting ink and continue the printing operation after the first time interval without performing the prefiring operation. The shifting mechanism also preferably delays the prefiring operation to a second time interval longer than the first time interval, and after the second time interval, the first prefiring mechanism causes the print head to perform the prefiring operation. In a case where the number of nozzles to be driven is changed within a time duration after the first time interval and during the second time interval, the second prefiring mechanism causes the print head to perform the prefiring operation.
摘要翻译：一种通过使用打印头执行打印的喷墨打印设备。打印头具有至少预定数量的喷嘴以喷射墨水。该装置包括：第一预送机构，用于使打印头执行预打印操作，以在打印操作期间的第一时间间隔之后，从打印头的喷嘴喷射墨水，以保持打印质量。该装置还包括用于基于要打印的数据驱动打印头的喷嘴的驱动机构，以及用于在要驱动的喷嘴的数量改变的情况下使打印头执行预加工操作的第二预送机构。优选地，该装置还包括移动机构，用于使驱动机构在打印操作期间基于第一时间间隔驱动打印头的喷嘴，以便增强喷墨的功率并在第一次之后继续打印操作间隔，不执行预加工操作。移位机构还优选地将预送操作延迟到比第一时间间隔更长的第二时间间隔，并且在第二时间间隔之后，第一预送机构使得打印头执行预制操作。在要驱动的喷嘴的数量在第一时间间隔之后的持续时间内和在第二时间间隔期间改变的情况下，第二预送机构使打印头执行预加工操作。

52. 发明授权

US06563601B1 System for printing image data divided at a break point 失效
标题翻译：用于打印在断点处划分的图像数据的系统
公开(公告)号：US06563601B1
公开(公告)日：2003-05-13
申请号：US08901565
申请日：1997-07-28
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi
IPC分类号： G06F1500
CPC分类号： G06K15/10 , B41J3/543 , B41J29/393
摘要： A printing system in which an image is printed within multiple printable areas of a recording medium, the multiple printable areas defining an overlapped printing area, includes detection of a break position in image data to be printed within the overlapped printing area using at least one of a plurality of break detection systems on the image data to be printed within the overlapped printing area, selective division of, at the detected break position and among the multiple printable areas, the image data to be printed within the overlapped printing area, and printing of the divided image data within the multiple printable areas.
摘要翻译：一种打印系统，其中在记录介质的多个可打印区域内打印图像，所述多个可打印区域限定重叠的打印区域，包括使用以下各项中的至少一个来检测要打印在重叠打印区域内的图像数据中的断开位置在重叠打印区域内要打印的图像数据上的多个断点检测系统，在检测到的断开位置和多个可打印区域之间选择性划分要在重叠打印区域内打印的图像数据，以及打印多个可打印区域内的分割图像数据。

53. 发明授权

US06364452B1 Color printing using multiple inks 有权
标题翻译：使用多种油墨进行彩色打印
公开(公告)号：US06364452B1
公开(公告)日：2002-04-02
申请号：US09291159
申请日：1999-04-14
申请人： Steven Noyes , Akitoshi Yamada , Hiromitsu Hirabayashi
发明人： Steven Noyes , Akitoshi Yamada , Hiromitsu Hirabayashi
IPC分类号： B41S221
CPC分类号： B41J2/15 , B41J2/2107
摘要： A system to produce print data corresponding to a multi-level value of a pixel includes a first determining step to determine a first amount of low-penetration black ink corresponding to the multi-level value, a second determining step to determine a second amount of high-penetration black ink corresponding to the multi-level value and a printing step to print the pixel using the first amount of low-penetration black ink corresponding to the multi-level value and the second amount of high-penetration black ink corresponding to the multi-level value.
摘要翻译：用于产生与像素的多值相对应的打印数据的系统包括：第一确定步骤，用于确定对应于多级值的第一量的低穿透黑色墨;第二确定步骤，用于确定第二量的对应于多电平值的高穿透性黑色墨水和印刷步骤，使用对应于多级电平值的第一量的低穿透性黑色墨水和与第二量的高渗透性黑色墨水相对应地印刷像素多层次价值。

54. 发明授权

US06172768B2 Halftoning with changeable error diffusion weights 失效
标题翻译：具有可变误差扩散权重的半色调
公开(公告)号：US06172768B2
公开(公告)日：2001-01-09
申请号：US09019310
申请日：1998-02-05
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi
IPC分类号： B41B1500
CPC分类号： H04N1/4053
摘要： Error diffusion halftoning in which error diffusion coefficients and/or thresholds vary, and preferably vary based on output error or on image source data plus accumulated error. Varying error diffusion coefficients and/or thresholds is observed to reduce printed artifacts. Preferably, a look-up table is provided, which may be based on output error or based on image source data plus accumulated error, and which directly provides error values for diffusion by adding to adjacent pixels, and which further may provide printer output data.
摘要翻译：错误扩散半色调，其中误差扩散系数和/或阈值变化，并且优选地基于输出误差或图像源数据加累积误差而变化。观察到不同的误差扩散系数和/或阈值以减少印刷伪影。优选地，提供查找表，其可以基于输出错误或基于图像源数据加累积误差，并且其通过添加到相邻像素直接提供用于扩散的误差值，并且还可以提供打印机输出数据。

55. 发明授权

US6050674A Multi-head printer with wide printing mode 失效
标题翻译：多头打印机具有宽打印模式
公开(公告)号：US6050674A
公开(公告)日：2000-04-18
申请号：US901139
申请日：1997-07-28
申请人： Hiromitsu Hirabayashi , Akitoshi Yamada
发明人： Hiromitsu Hirabayashi , Akitoshi Yamada
IPC分类号： B41J3/54 , B41J29/38
CPC分类号： B41J3/54
摘要： A multi-head printer, and a driver therefor, in which the multi-head printer has at least a wide width print mode and a standard width print mode. At least first and second print heads are mounted for lateral reciprocal movement across a support surface for a recording medium, with the first and second print heads being laterally displaced with respect to each other such that both the first and second print heads can print a first lateral print area and such that only the second print head can print a portion of a second and larger lateral print area. In the standard width printing mode, fully or partially overlapped printing in the first lateral print area can be effected by both of the first and second print heads. In the wide width print mode, printing by only the second print head is effected, and not by the first print head. An additional wide print mode may be provided for partially overlapped printing by the first and second print heads, with the second print head printing primarily in the second lateral print area. Based on print head configuration, such as the type and color capability of print heads mounted in the first and second print heads, available print modes are determined, from which one of the available print modes is selected for effecting printout by the printer.
摘要翻译：一种多头打印机及其驱动器，其中多头打印机至少具有宽幅打印模式和标准宽度打印模式。至少第一和第二打印头被安装用于跨越用于记录介质的支撑表面的横向往复运动，其中第一和第二打印头相对于彼此横向移位，使得第一和第二打印头都可以打印第一横向打印区域，并且使得仅第二打印头可以打印第二和更大横向打印区域的一部分。在标准宽度打印模式中，第一横向打印区域中的全部或部分重叠打印可以由第一和第二打印头两者实现。在宽幅打印模式中，仅通过第二打印头进行打印，而不是由第一打印头进行打印。可以提供另外的宽打印模式用于第一和第二打印头的部分重叠打印，其中第二打印头主要在第二横向打印区域中打印。基于打印头配置，例如安装在第一和第二打印头中的打印头的类型和颜色能力，确定可用的打印模式，从中选择可用的打印模式之一以由打印机进行打印输出。

56. 发明授权

US6025928A Shuttle type recording apparatus 失效
标题翻译：穿梭式记录装置
公开(公告)号：US6025928A
公开(公告)日：2000-02-15
申请号：US901836
申请日：1997-07-28
申请人： Makoto Takemura , Shinji Kanemitsu , Hiromitsu Hirabayashi , Yuji Akiyama , Miyuki Fujita , Akitoshi Yamada
发明人： Makoto Takemura , Shinji Kanemitsu , Hiromitsu Hirabayashi , Yuji Akiyama , Miyuki Fujita , Akitoshi Yamada
IPC分类号： B41J2/01 , B41J2/18 , B41J2/185 , B41J2/485 , B41J2/51 , B41J3/54 , B41J19/18 , G06F15/00 , H04N1/00
CPC分类号： B41J3/54
摘要： In a recording apparatus for recording on a recording medium by using a plurality of recording heads arranged at a predetermined interval in a scan direction, the recording heads are caused to scan corresponding divided recording areas. When the recording heads are caused to scan the corresponding divided recording areas, at least one of the recording heads is caused to record in a plurality of different recording areas. Positions of a recording medium are defined at a plurality of reference positions provided for the recording areas in which the recording is made.
摘要翻译：在通过使用以扫描方向以预定间隔布置的多个记录头在记录介质上进行记录的记录装置中，使记录头扫描相应的分割记录区域。当使记录头扫描相应的划分的记录区域时，至少一个记录头被记录在多个不同的记录区域中。在为进行记录的记录区域提供的多个参考位置定义记录介质的位置。

57. 发明授权

US07859723B2 Image processing to perform error diffusion with dots formed based color component values and their sum relative to a threshold 有权
标题翻译：图像处理，以基于颜色分量值形成的点进行误差扩散及其相对于阈值的和
公开(公告)号：US07859723B2
公开(公告)日：2010-12-28
申请号：US12431624
申请日：2009-04-28
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
IPC分类号： H04N1/52
CPC分类号： H04N1/52
摘要： Image processing apparatus and image processing method for formation of high quality image by high-speed error diffusion processing by execution of more complicated threshold condition processing in a simple manner. When error diffusion processing is performed on multivalued image data having plural density components and the result of processing is outputted, upon execution of error diffusion processing on a first density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of a second density component, then the error diffusion processing is performed on the first density component based on the determined threshold value, and the result of execution of the error diffusion processing is outputted. Further, upon execution of the error diffusion processing on the second density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of the first density component, then the error diffusion processing is performed on the second density component based on the determined threshold value, and the result of the error diffusion processing is outputted.
摘要翻译：通过以简单的方式执行更复杂的阈值条件处理，通过高速误差扩散处理形成高质量图像的图像处理装置和图像处理方法。当对具有多个浓度分量的多值图像数据执行误差扩散处理并且输出处理结果时，在对多个浓度分量中的第一密度分量执行误差扩散处理时，确定在误差扩散处理中使用的阈值基于第二密度分量的密度值，然后基于所确定的阈值对第一密度分量执行误差扩散处理，并且输出误差扩散处理的执行结果。此外，在对多个密度分量中的第二密度分量执行误差扩散处理之后，基于第一密度分量的密度值来确定误差扩散处理中使用的阈值，然后进行误差扩散处理输出基于所确定的阈值的第二密度分量和误差扩散处理的结果。

58. 发明授权

US07548346B2 Image processing apparatus and method for performing error diffusion based on density values of different color components 有权
标题翻译：基于不同颜色分量的密度值进行误差扩散的图像处理装置和方法
公开(公告)号：US07548346B2
公开(公告)日：2009-06-16
申请号：US11370982
申请日：2006-03-09
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
IPC分类号： H04N1/405 , H04N1/52
CPC分类号： H04N1/52
摘要： Image processing apparatus and image processing method for formation of high quality image by high-speed error diffusion processing by execution of more complicated threshold condition processing in a simple manner. When error diffusion processing is performed on multivalued image data having plural density components and the result of processing is outputted, upon execution of error diffusion processing on a first density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of a second density component, then the error diffusion processing is performed on the first density component based on the determined threshold value, and the result of execution of the error diffusion processing is outputted. Further, upon execution of the error diffusion processing on the second density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of the first density component, then the error diffusion processing is performed on the second density component based on the determined threshold value, and the result of the error diffusion processing is outputted.
摘要翻译：通过以简单的方式执行更复杂的阈值条件处理，通过高速误差扩散处理形成高质量图像的图像处理装置和图像处理方法。当对具有多个浓度分量的多值图像数据执行误差扩散处理并且输出处理结果时，在对多个浓度分量中的第一密度分量执行误差扩散处理时，确定在误差扩散处理中使用的阈值基于第二密度分量的密度值，然后基于所确定的阈值对第一密度分量执行误差扩散处理，并且输出误差扩散处理的执行结果。此外，在对多个密度分量中的第二密度分量执行误差扩散处理之后，基于第一密度分量的密度值来确定误差扩散处理中使用的阈值，然后进行误差扩散处理输出基于所确定的阈值的第二密度分量和误差扩散处理的结果。

59. 发明授权

US07099046B2 Image processing apparatus and image processing method 失效
公开(公告)号：US07099046B2
公开(公告)日：2006-08-29
申请号：US09993641
申请日：2001-11-27
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
IPC分类号： H04N1/405 , H04N1/52
CPC分类号： H04N1/52
摘要： Image processing apparatus and image processing method for formation of high quality image by high-speed error diffusion processing by execution of more complicated threshold condition processing in a simple manner. When error diffusion processing is performed on multivalued image data having plural density components and the result of processing is outputted, upon execution of error diffusion processing on a first density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of a second density component, then the error diffusion processing is performed on the first density component based on the determined threshold value, and the result of execution of the error diffusion processing is outputted. Further, upon execution of the error diffusion processing on the second density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of the first density component, then the error diffusion processing is performed on the second density component based on the determined threshold value, and the result of the error diffusion processing is outputted.

60. 发明申请

US20060164690A1 Image processing apparatus and image processing method 有权
公开(公告)号：US20060164690A1
公开(公告)日：2006-07-27
申请号：US11370982
申请日：2006-03-09
申请人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
发明人： Akitoshi Yamada , Hiromitsu Hirabayashi , Masao Kato
IPC分类号： H04N1/40
CPC分类号： H04N1/52
摘要： Image processing apparatus and image processing method for formation of high quality image by high-speed error diffusion processing by execution of more complicated threshold condition processing in a simple manner. When error diffusion processing is performed on multivalued image data having plural density components and the result of processing is outputted, upon execution of error diffusion processing on a first density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of a second density component, then the error diffusion processing is performed on the first density component based on the determined threshold value, and the result of execution of the error diffusion processing is outputted. Further, upon execution of the error diffusion processing on the second density component among the plural density components, a threshold value used in the error diffusion processing is determined based on a density value of the first density component, then the error diffusion processing is performed on the second density component based on the determined threshold value, and the result of the error diffusion processing is outputted.

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