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81. 发明公开

EP2141904A2 Image reading device, image forming apparatus, and image reading method 审中-公开
标题翻译： Bildlesevorrichtung，Bildzeugungsvorrichtung und Bildleseverfahren
公开(公告)号：EP2141904A2
公开(公告)日：2010-01-06
申请号：EP09251504.8
申请日：2009-06-05
申请人： Ricoh Company, Ltd.
发明人： Wada, Shinichiroh c/o Ricoh Company, Limited
IPC分类号： H04N1/00
CPC分类号： H04N1/401 , H04N1/4076
摘要： The present invention relates to an image reading device comprising a light source (2), a white reference board that is used for shading correction (11), a reading unit (12) that reads an original while the original moves on an original platen, a detecting unit (32, 91) that detects whether an original is set on the original platen, an acquiring unit (92) that causes to move, upon the detecting unit detecting setting of the original on the original platen, the light source up to a position of the white reference board and acquires shading correction data by reading the white reference board, a determining unit (91) that determines, upon receiving an original reading start request, whether to execute acquisition of the shading correction data again by using the acquiring unit, before reading a first original, and a shading correcting unit (46) that carries out, upon the determining unit determining to execute acquisition of the shading correction data again by using the acquiring unit before reading the first original, the shading correction by using the acquired shading correction data, and carries out, upon determining not to execute, the shading correction by using the shading correction data that is acquired by using the acquiring unit at the time of detecting setting of the original.
摘要翻译：本发明涉及一种图像读取装置，包括光源（2），用于阴影校正的白色参考板（11），读取单元（12），原稿在原稿台上移动时读取原稿; 检测单元（32,91），其检测原稿是否设置在原稿台上;获取单元（92），其在检测单元检测到原稿台上的原稿设置时使其移动，光源至白色参考板的位置，并通过读取白色参考板获取阴影校正数据;确定单元，其在接收到原始读取开始请求时确定是否通过使用获取来执行阴影校正数据的获取单元，在读取第一原稿之前，以及阴影校正单元，其在确定单元确定通过使用获取单元b再次执行阴影校正数据的获取时执行在读取第一原稿之前，通过使用所获取的阴影校正数据进行阴影校正，并且通过使用在检测设置时使用获取单元获取的阴影校正数据，在确定不执行阴影校正时执行阴影校正的原来。

82. 发明公开

EP2040455A2 Image forming apparatus and control method thereof 有权转让
标题翻译：成像装置及其控制方法
公开(公告)号：EP2040455A2
公开(公告)日：2009-03-25
申请号：EP08161924.9
申请日：2008-08-06
申请人： Samsung Electronics Co., Ltd.
发明人： Lee, Jae Kyu
IPC分类号： H04N1/60
CPC分类号： H04N1/4076 , H04N1/6027
摘要： An image forming apparatus and a control method thereof are disclosed. The disclosed image forming apparatus includes a white reference sheet provided at one side of a flat bed, for scanning an object (10), an image sensor module (20) including an image sensor (23) to detect light reflected from the white reference sheet in a scanning operation for the white reference sheet and light reflected from an image on the object (10) in a scanning operation for the object (10), and to output analog image signals respectively corresponding to the reflected lights, an analog front end (30) (AFE) to convert each analog image signal output from the image sensor (23) to a digital image signal, a shading memory (50) to store shading data obtained in the scanning operation for the white reference sheet, and a controller (40) to calculate differences among outputs from R, G, and B channels of the image sensor (23), using the stored shading data, to correct the stored shading data, based on the calculated output differences, and to correct image data outputs generated from the R, G, and B channels in the scanning operation for the object (10), based on the calculated output differences. The image forming apparatus can correct different physical offset values possibly present at different color channels in a color scanning operation. Accordingly, it is possible to adjust the color balance of a scanned image, and thus to achieve an enhancement in the color quality of the image.
摘要翻译：公开了一种图像形成装置及其控制方法。所公开的图像形成设备包括：设置在平台的一侧用于扫描物体（10）的白色参考薄片;包括图像传感器（23）的图像传感器模块（20），图像传感器（23）用于检测从白色参考薄片在用于对象（10）的扫描操作中对白色参考片材和从对象（10）上的图像反射的光进行扫描操作并且输出分别对应于反射光的模拟图像信号时，模拟前端（ 30）（AFE）将从图像传感器（23）输出的每个模拟图像信号转换成数字图像信号，阴影存储器（50）存储在白色参考片材的扫描操作中获得的阴影数据，以及控制器 40），使用所存储的阴影数据来计算来自图像传感器（23）的R，G和B通道的输出之间的差异，以基于所计算的输出差异校正所存储的阴影数据，并且校正所生成的图像数据输出来来往往（10）的扫描操作中的R，G和B通道中的至少一个，基于所计算的输出差异。图像形成设备可以校正在彩色扫描操作中可能存在于不同颜色通道的不同物理偏移值。因此，可以调整扫描图像的色彩平衡，从而实现图像的色彩质量的提高。

83. 发明授权

EP0964569B1 Image reading apparatus 有权
公开(公告)号：EP0964569B1
公开(公告)日：2006-06-07
申请号：EP99111327.5
申请日：1999-06-10
申请人： CANON KABUSHIKI KAISHA
发明人： Hidekazu, Maruta, c/o Canon Kabushiki Kaisha , Kensaku, Kusaka, c/o Canon Kabushiki Kaisha
IPC分类号： H04N1/407 , H04N1/401
CPC分类号： H04N1/4076

84. 发明公开

EP1463298A1 Image reading apparatus and method of obtaining white reference data for shading correction 有权
标题翻译： Bildlesevorrichtung und Verfahren zur Erlangung von Weiss-ReferenzdatenfürSchattierungskorrektur
公开(公告)号：EP1463298A1
公开(公告)日：2004-09-29
申请号：EP04002934.0
申请日：2004-02-10
申请人： Ricoh Company Ltd.
发明人： Nakaya, Kazuhiko
IPC分类号： H04N1/407 , H04N1/401
CPC分类号： H04N1/4076 , H04N2201/044
摘要： A method and apparatus of image reading includes a reader, a contact glass, a reference, and a carrier. The reader is immovably mounted and reads one side of an original document being conveyed at a reading position. The contact glass includes a surface contacting the original document. The reference is placed at a side of the contact glass opposite to the surface and movable in an area including the reading position and a standby position. The reference includes a surface facing the reader and having a predetermined color for providing shading data used for a shading correction. The carrier moves the reference to the reading position. The reader obtains the shading data by reading the predetermined color on the surface of the reference at the reading position.
摘要翻译：图像读取的方法和装置包括读取器，接触玻璃，参考和载体。阅读器不可移动地安装并且读取在读取位置被传送的原始文档的一侧。接触玻璃包括接触原始文件的表面。参考放置在与表面相对的接触玻璃的一侧，并且可在包括读取位置和备用位置的区域中移动。参考文献包括面向读取器并具有预定颜色的表面，用于提供用于阴影校正的阴影数据。载体将参考值移动到读取位置。读取器通过在读取位置读取基准表面上的预定颜色来获得阴影数据。

85. 发明授权

EP0779735B1 Image quality control in image forming apparatus 失效
标题翻译：在图像形成装置的图像质量控制
公开(公告)号：EP0779735B1
公开(公告)日：2004-07-28
申请号：EP96119896.7
申请日：1996-12-11
申请人： FUJI XEROX CO., LTD.
发明人： Ishikawa, Kiyotaka, c/o Fuji Xerox Co., Ltd. , Yamada, Kunio, c/o Fuji Xerox Co., Ltd.
IPC分类号： H04N1/40
CPC分类号： H04N1/40 , G03G2215/00042 , H04N1/407 , H04N1/4076

86. 发明授权

EP0871324B1 Photo induced discharge for xerography 失效
标题翻译：静电复印的光诱导放电
公开(公告)号：EP0871324B1
公开(公告)日：2004-02-25
申请号：EP98302391.2
申请日：1998-03-27
申请人： XEROX CORPORATION
发明人： Raj, Guru B. , Budnik, Roger W. , Pacer, James M.
IPC分类号： G03G15/00
CPC分类号： H04N1/4076

87. 发明授权

EP1064779B1 LESEEINHEIT FÜR EIN DOKUMENT 有权
标题翻译：读取单元为一个文件
公开(公告)号：EP1064779B1
公开(公告)日：2002-08-28
申请号：EP99908665.5
申请日：1999-03-16
申请人： KEBA AG
发明人： ZECHLEITNER, Dieter
IPC分类号： H04N1/401 , H04N1/407
CPC分类号： H04N1/4076 , H04N1/401
摘要： The invention relates to a reader unit (1) for a document (2) comprising a control and/or evaluation device (44) which has a scanner (25) for reading the document (2). The reading unit also comprises a guiding device (6) for the document (2) and a transport device (17) for the relative displacement between the document (2) and the scanner (25). A compensating device (39) is assigned to the control and/or evaluation device (44) in real time. Said compensating device has compensation values for the compensation of the image signals (37) leaving an opto-electric transducer (34) of the scanner (25).

88. 发明授权

EP0830012B1 Image reading apparatus 失效
公开(公告)号：EP0830012B1
公开(公告)日：2002-08-21
申请号：EP97203419.3
申请日：1988-01-19
申请人： CANON KABUSHIKI KAISHA
发明人： Suzuki, Yasumichi , Honma, Toshio , Itagaki, Hiroshi , Matsuoka, Nobuo , Sasahara, Kenji , Hasegawa, Shizuo
IPC分类号： H04N1/401 , H04N1/407
CPC分类号： H04N1/4076 , H04N1/401

89. 发明公开

EP1178670A2 Method and system for dynamic scanner calibration 有权
标题翻译： Verfahren und Vorrichtung zur dynamischen Kalibrierung eines Bildabtasters
公开(公告)号：EP1178670A2
公开(公告)日：2002-02-06
申请号：EP01306550.3
申请日：2001-07-31
申请人： Hewlett-Packard Company
发明人： Thompson, Robert D.
IPC分类号： H04N1/40
CPC分类号： H04N1/40006 , H04N1/00002 , H04N1/00018 , H04N1/00029 , H04N1/0005 , H04N1/00063 , H04N1/00087 , H04N1/0009 , H04N1/4076
摘要： A method and system for optimizing the time required for scanning a document utilize calibration information from the initial power-up calibration or any other calibration, and the information from any previous scans to expedite or eliminate the need for future calibration requests. Calibration of a scanner coupled to a host computer is achieved by retrieving (116) operational data from a memory element of the host computer; evaluating (120) the retrieved data for degradation in the operation of the scanner; and calibrating (136, 140) the scanner to overcome the degradations.
摘要翻译：用于优化扫描文档所需时间的方法和系统利用来自初始上电校准或任何其他校准的校准信息，以及来自任何先前扫描的信息，以加速或消除对未来校准请求的需要。通过从主计算机的存储元件检索（116）操作数据来实现耦合到主计算机的扫描仪的校准; 评估（120）所检索的数据用于扫描器的操作中的劣化; 并校准（136,140）扫描仪以克服劣化。

90. 发明授权

EP0739272B1 ERROR DETECTION APPARATUS AND METHOD FOR USE WITH ENGRAVERS 失效
标题翻译：故障检测装置雕刻机
公开(公告)号：EP0739272B1
公开(公告)日：2001-09-19
申请号：EP94923942.0
申请日：1994-07-15
申请人： MDC Max Dätwyler AG Bleienbach
发明人： HOLOWKO, Paul, L. , SEITZ, David, R. , WOODS, Curtis
IPC分类号： B41C1/02 , G01B11/28
CPC分类号： H04N1/00002 , B41C1/04 , B41C1/045 , B44B3/009 , B44B3/061 , G05B19/401 , G05B2219/33078 , G05B2219/37358 , G05B2219/37572 , G05B2219/37574 , G05B2219/45163 , G05B2219/45178 , G05B2219/45212 , G05B2219/49235 , G05B2219/50057 , H04N1/06 , H04N1/0671 , H04N1/19 , H04N1/40025 , H04N1/4005 , H04N1/4058 , H04N1/4076 , H04N1/4078
摘要： An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder (10) is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder (10). The apparatus and method may be used during initial setup or during normal operation of the engraver.

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