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公开(公告)号：US06615291B1
公开(公告)日：2003-09-02
申请号：US09521196
申请日：2000-03-07
IPC分类号： G06F1328
CPC分类号： G06F13/30
摘要： A bus monitor section 8 calculates bus-occupancy rate for each of the DMA control sections 1 to 3 connected to a bus 5 in accordance with bus-use permission signals ack1 to ack3, respectively. Furthermore, a bus-use reconcilement section 6 changes manners of bus-use reconcilement control when the sum of a plurality of bus-occupancy rate exceeds “50”, a predetermined threshold. Thereby, this method avoids occurrences such that a specific device occupies the bus 5 or vice versa, a specific device cannot get access to the bus 5.
摘要翻译： 总线监视部分8根据总线使用许可信号ack1至ack3分别计算连接到总线5的每个DMA控制部分1至3的总线占用率。 此外，当总线占用率的总和超过“50”，预定阈值时，总线使用调和部分6改变总线使用协调控制的方式。 因此，该方法避免了特定设备占用总线5或相反的情况，特定设备不能访问总线5。
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公开(公告)号：US06307981B1
公开(公告)日：2001-10-23
申请号：US08986322
申请日：1997-12-05
申请人： Nobuo Kamei , Munehiro Nakatani
发明人： Nobuo Kamei , Munehiro Nakatani
IPC分类号： G06K903
CPC分类号： H04N1/32625 , H04N1/32358 , H04N1/32609 , H04N1/32657
摘要： A memory error detecting device for an image forming apparatus having a memory unit, a first generating means, a second generating means, a comparison means, and a memory error warning means. The first generating means generates first information related to first image data input to the memory unit. The second generating means generates second information related to second image data output from the memory unit. The comparison means compares the first information with the second information, and generates a comparison result signal. The memory error warning means signifies an error in the memory unit when the comparison result signal indicates that the first information differs from the second information.
摘要翻译： 一种用于具有存储单元，第一生成装置，第二生成装置，比较装置和存储器错误警告装置的图像形成装置的存储器错误检测装置。 第一产生装置产生与输入到存储器单元的第一图像数据有关的第一信息。 第二产生装置产生与从存储器单元输出的第二图像数据有关的第二信息。 比较装置将第一信息与第二信息进行比较，并生成比较结果信号。 当比较结果信号指示第一信息不同于第二信息时，存储器错误警告装置表示存储器单元中的错误。
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公开(公告)号：US5623300A
公开(公告)日：1997-04-22
申请号：US100168
申请日：1993-08-02
申请人： Tetsuya Itoh , Munehiro Nakatani , Nobuo Kamei
发明人： Tetsuya Itoh , Munehiro Nakatani , Nobuo Kamei
CPC分类号： H04N1/40031
摘要： A print head for reproducing a multi-level image is an provided. In the print head, a light-emitting array comprises a linear line of light-emitting elements. A D/A converter converts a multi-level image data to an analog signal, and an analog shift register shifts and latches the analog signals of a line received from the D/A converter. An analog latch register latches the analog signals held by the analog shift register. A driver controls the quantity of light of the light-emitting elements according to the analog signals latched by the analog latch register. In one embodiment, the print head includes a second analog shift register, an A/D converter a line memory and a divider which divides the image data by a signal from the line memory to produce corrected data which is provided to the driver to control driving of the light-emitting elements. In another embodiment, the print head includes an amplifier and a gain correction circuit having a sample and hold circuit from which the driver receives signals to control driving of the light-emitting elements.
摘要翻译： 提供了一种用于再现多级图像的打印头。 在打印头中，发光阵列包括线性线的发光元件。 D / A转换器将多电平图像数据转换为模拟信号，并且模拟移位寄存器移位并锁存从D / A转换器接收的线的模拟信号。 模拟锁存寄存器锁存由模拟移位寄存器保持的模拟信号。 驱动器根据由模拟锁存寄存器锁存的模拟信号来控制发光元件的光量。 在一个实施例中，打印头包括第二模拟移位寄存器，A / D转换器线路存储器和分频器，其通过来自行存储器的信号分割图像数据，以产生校正数据，该校正数据提供给驾驶员以控制驱动 的发光元件。 在另一个实施例中，打印头包括放大器和具有采样和保持电路的增益校正电路，驱动器从该采样和保持电路接收信号以控制发光元件的驱动。
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公开(公告)号：US07266215B2
公开(公告)日：2007-09-04
申请号：US10084708
申请日：2002-02-21
CPC分类号： H04N1/0084 , G06T1/0021 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , G06T2201/0064 , H04N1/00846 , H04N1/00854 , H04N1/00867 , H04N1/0087 , H04N1/00875 , H04N1/00877 , H04N1/32149 , H04N1/32203 , H04N1/32208 , H04N1/32213 , H04N1/32229 , H04N1/32251 , H04N1/32261 , H04N1/32288 , H04N2201/3205 , H04N2201/3214 , H04N2201/3215 , H04N2201/3226 , H04N2201/3232 , H04N2201/3242 , H04N2201/3246 , H04N2201/327 , H04N2201/3274 , H04N2201/3283 , Y10S283/901 , Y10S283/902
摘要： An additional data useful for the management of copies of a document for an image forming apparatus is embedded in a hard copy of the document. The additional data is embedded in an inherent image of a document as discrete dots arranged in a prescribed format. Preferably, the size of each of said discrete dots is not so large as to be recognized easily with naked eyes. The additional data can be embedded in unit of blocks. Further, the density of the discrete dots is different from the density adjacent to the discrete dots. The image data for embedding an additional data can be obtained by reading a document, or by receiving data sent from a computer or read from a floppy disk. An additional data embedded in a hard copy can be extracted from the image data on the hard copy. Further, the production of a copy according to the image data can be controlled according to the extracted additional data. For example, if the additional data means that the source of the hard copy is a secret document, the copying is allowed only for a legitimate user. An additional data is generated for each copy according to the extracted additional data for embedding it in a hard copy to identify each copy. The additional data generated for each copy are compiled and they are used to manage copies of various sources systematically and illegal copies can be traced easily. If the additional data received from a printer is not consistent with the additional data already stored, the printing may be prohibited. A transmitter for transmitting an additional data may be provided in a document such as a book.
摘要翻译： 用于管理图像形成装置的文档的副本的附加数据被嵌入文档的硬拷贝中。 附加数据嵌入文档的固有图像中，作为以规定格式排列的离散点。 优选地，每个所述离散点的尺寸不是很大，以致容易用肉眼识别。 附加数据可以以块为单位嵌入。 此外，离散点的密度与离散点相邻的密度不同。 用于嵌入附加数据的图像数据可以通过读取文档或通过接收从计算机发送的数据或从软盘读取来获得。 可以从硬拷贝上的图像数据中提取嵌入在硬拷贝中的附加数据。 此外，可以根据所提取的附加数据来控制根据图像数据的副本的制作。 例如，如果附加数据意味着硬拷贝的来源是秘密文件，则仅允许合法用户复制。 根据提取的附加数据为每个副本生成附加数据，以将其嵌入硬拷贝中以识别每个副本。 为每个副本生成的附加数据进行编译，并用于系统地管理各种源的副本，并且可以轻松地跟踪非法副本。 如果从打印机接收到的附加数据与已经存储的附加数据不一致，则可能禁止打印。 用于发送附加数据的发送器可以在诸如书籍的文档中提供。
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5.发明授权Image reading apparatus and method for reading images of different sizes of originals 失效用于读取不同尺寸原稿的图像的图像读取装置和方法
公开(公告)号：US5745253A
公开(公告)日：1998-04-28
申请号：US394944
申请日：1995-02-24
CPC分类号： H04N1/00578 , H04N1/0057 , H04N1/0058 , H04N1/00602 , H04N1/0061 , H04N1/00623 , H04N1/0402 , H04N1/0405 , H04N1/0455 , H04N1/1017 , H04N1/1043 , H04N1/1048 , H04N1/1052 , H04N1/1056 , H04N1/121 , H04N1/0464 , H04N1/1013 , H04N1/193 , H04N2201/042
摘要： The invention relates to an image reading apparatus for reading images of original documents by moving the original relative to a stationary image reader. A single image reader is used in a first embodiment. When reading the image of a first side, the single image reader is stationary at a first position to read the original. When reading the image of a second side, the single image reader is moved to a second position corresponding to the size of the original, and reads the image of the second side while said image reader is stationary at the second position. The image reading apparatus of the second embodiment uses a stationary first reader for reading a first side of an original, and a movable second image reader for reading a second side of an original. The image reading apparatus of the second embodiment changes the position of the image reader in accordance with the size of the original.
摘要翻译： 本发明涉及一种通过相对于固定图像读取器移动原稿来读取原稿的图像的图像读取装置。 在第一实施例中使用单个图像读取器。 当读取第一面的图像时，单个图像读取器在第一位置处静止以读取原稿。 当读取第二面的图像时，将单个图像读取器移动到对应于原稿的尺寸的第二位置，并且在所述图像读取器在第二位置处静止时读取第二侧的图像。 第二实施例的图像读取装置使用固定的第一读取器来读取原件的第一侧，以及可移动的第二图像读取器，用于读取原件的第二侧。 第二实施例的图像读取装置根据原稿的尺寸改变图像读取器的位置。
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公开(公告)号：US5671277A
公开(公告)日：1997-09-23
申请号：US327223
申请日：1994-10-21
CPC分类号： H04N1/00846 , G06T1/0028 , H04N1/00875 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32261 , H04N1/32288 , G06T2201/0051 , G06T2201/0064 , H04N2201/3242 , H04N2201/3246 , H04N2201/327 , H04N2201/3274
摘要： Additional data useful for the management of copies of a document for an image forming apparatus is embedded in a hard copy of the document. The additional data is embedded in an inherent image of a document as pixels arranged in a prescribed format, and, preferably, the size of the pixels is such as to not be easily recognized with the naked eye. The image data for embedding the additional data can be obtained by reading a document, or by receiving data sent from a computer or read from a floppy disk. Additional data embedded in a hard copy can be extracted from the image data on the hard copy, and the production of a copy according to the image data can be controlled according to the extracted additional data. For example, if the additional data means that the source of the hard copy is a secret document, copying thereof is allowed only for a legitimate user. Additional data generated for each copy is compiled and is used to manage copies of various sources systematically.
摘要翻译： 用于管理图像形成装置的文档的副本的附加数据嵌入在文档的硬拷贝中。 附加数据被嵌入作为以规定格式布置的像素的文档的固有图像，并且优选地，像素的大小不能用肉眼容易地识别。 用于嵌入附加数据的图像数据可以通过读取文档或者通过接收从计算机发送的数据或从软盘读取来获得。 可以从硬拷贝上的图像数据中提取嵌入在硬拷贝中的附加数据，并且可以根据提取的附加数据来控制根据图像数据的副本的生成。 例如，如果附加数据意味着硬拷贝的来源是秘密文件，则只允许其复制是为了合法用户。 为每个副本生成的附加数据被编译，并用于系统地管理各种源的副本。
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7.发明授权Image forming apparatus having illumination direction altered for every plurality of readout operations with respect to one original 失效对于一个原件，对于每次读出操作，照明方向的图像形成装置被改变
公开(公告)号：US5608547A
公开(公告)日：1997-03-04
申请号：US229788
申请日：1994-04-19
申请人： Munehiro Nakatani , Yoshikazu Ikenoue , Atsushi Ishikawa , Akio Nakajima , Hideo Kumashiro , Katsuaki Tajima , Tetsuya Itoh , Keiji Nakatani , Sou Hirota
发明人： Munehiro Nakatani , Yoshikazu Ikenoue , Atsushi Ishikawa , Akio Nakajima , Hideo Kumashiro , Katsuaki Tajima , Tetsuya Itoh , Keiji Nakatani , Sou Hirota
IPC分类号： G03G15/00 , G03G15/04 , G03G15/043 , G03G15/047 , G03G15/36 , G03G21/00 , H04N1/00 , H04N1/04 , H04N1/40 , H04N1/48
CPC分类号： H04N1/00795 , H04N1/40 , H04N2201/0434
摘要： In a shadow process mode, a scanner reads out an original with a first exposure lamp in a first scanning operation. The readout image data is stored in an image memory via an I/O control unit. In the second scanning operation, the scanner reads out the original with a second exposure lamp having an illumination direction different from that of the first exposure lamp. The image data read out in the second scanning operation and the data stored in the image memory are subtracted for each pixel by a subtractor. The difference thereof is compared with a predetermined value in a comparator. The compared result is output to a selector, whereby a desired image data is provided to a printer processing unit via the I/O control unit.
摘要翻译： 在阴影处理模式中，扫描仪在第一扫描操作中用第一曝光灯读出原稿。 读出的图像数据通过I / O控制单元存储在图像存储器中。 在第二扫描操作中，扫描器用具有不同于第一曝光灯的照明方向的第二曝光灯读出原稿。 在第二扫描操作中读出的图像数据和存储在图像存储器中的数据通过减法器被减去每个像素。 其差异与比较器中的预定值进行比较。 将比较结果输出到选择器，由此通过I / O控制单元将期望的图像数据提供给打印机处理单元。
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公开(公告)号：US5517327A
公开(公告)日：1996-05-14
申请号：US267711
申请日：1994-06-28
CPC分类号： H04N1/41 , H04N1/40062 , H04N1/413 , H04N19/126 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/42 , H04N19/48 , H04N19/60 , H04N19/124 , H04N19/132 , H04N19/146 , H04N19/149 , H04N19/15 , H04N19/30
摘要： In a data processor, image data of a pixel matrix is subjected to orthogonal transformation to coefficient data, the coefficient data is quantized with a first quantization table for character image and a second quantization table for half-tone image, and the image data is discriminated to be character image data or half-tone image data according to the quantization data. The selected data is then coded. In another processor, image data are divided into first and second processing blocks of m*m and M*M pixel matrices wherein M>m and the second processing block includes one of first processing blocks and adjacent pixels. Image data in a first and second processing block are subjected to orthogonal transformation to coefficient data. It is discriminated according to the coefficient data of the second processing block if the image is a character, dot, or half-tone image to select an appropriate quantization table, and image data of the first block is quantized according to the selected table and the quantized data are coded. In a further processor, two discrimination windows are provided, the first having coefficient data around the DC component and the second having the other data. Orthogonal transform coefficients of image data in a processing block are calculated, and maximum of absolute values in the windows are obtained. An image is discriminated to be a dot image if the maximum of the first window is larger than the second and larger than a threshold value.
摘要翻译： 在数据处理器中，将像素矩阵的图像数据进行到系数数据的正交变换，用用于字符图像的第一量化表和半色调图像的第二量化表量化系数数据，并且识别图像数据 根据量化数据作为字符图像数据或半色调图像数据。 然后对所选择的数据进行编码。 在另一个处理器中，图像数据被划分成m * m和M * M个像素矩阵的第一和第二处理块，其中M> m，第二处理块包括第一处理块和相邻像素之一。 对第一和第二处理块中的图像数据进行正交变换到系数数据。 如果图像是用于选择适当的量化表的字符，点或半色调图像，则根据第二处理块的系数数据进行区分，并且根据所选择的表格对第一块的图像数据进行量化， 量化数据被编码。 在另一个处理器中，提供两个识别窗口，第一个具有围绕DC分量的系数数据，而第二个具有其他数据。 计算处理块中的图像数据的正交变换系数，并获得窗口中绝对值的最大值。 如果第一窗口的最大值大于第二窗口并且大于阈值，则将图像区分为点图像。
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9.发明授权Image scanning apparatus for use in an image reader, a copying machine and the like 失效用于图像读取器，复印机等的图像扫描装置
公开(公告)号：US4959737A
公开(公告)日：1990-09-25
申请号：US204678
申请日：1988-06-09
申请人： Munehiro Nakatani
发明人： Munehiro Nakatani
CPC分类号： H04N1/0287 , H04N1/02815 , H04N1/40056
摘要： The present invention relates to an image scanning apparatus for scanning the image of a document by moving a light source along the document image. In the image scanning apparatus of the present invention, the light source and the drive circuit for generating a high voltage to turn on the light source are mounted on a slider movable along the document image.
摘要翻译： 本发明涉及一种用于通过沿文件图像移动光源来扫描原稿图像的图像扫描装置。 在本发明的图像扫描装置中，光源和用于产生高电压以驱动光源的驱动电路安装在可沿文件图像移动的滑块上。
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公开(公告)号：US4837846A
公开(公告)日：1989-06-06
申请号：US777214
申请日：1985-09-18
IPC分类号： H04N1/405
CPC分类号： H04N1/4051
摘要： A method of image processing for sampling the concentration of each portion of an image in the unit of a picture element and for binarizing the concentrations of picture elements in the unit of a submatrix of predetermined size to obtain a bi-level image, being characterized in that the bi-level image is obtained from the concentrations having been sampled according to the steps as follows: (a) calculating the average of the concentrations of the picture elements at every submatrix to which the picture elements belong; (b) determining the number of elements in the submatrix to be treated as either one of black and white according to a predetermined relation with the average; (c) assigning elements in the submatrix as the elements to be treated as either one of black and white up to the number determined in the step (b) in the predetermined order of the concentration of each element.
摘要翻译： 一种图像处理方法，用于以图像元素为单位对图像的每个部分的浓度进行采样，并且以预定尺寸的子矩阵为单位对图像元素的浓度进行二值化，以获得双层图像，其特征在于 根据以下步骤从已经采样的浓度获得双电平图像：（a）计算像素所属的每个子矩阵处的像素的浓度的平均值; （b）根据与平均值的预定关系确定要被视为黑色和白色之一的子矩阵中的元素的数量; （c）将子矩阵中的元素分配为要被处理为黑色和白色之一的元素，直到按照每个元素的浓度的预定顺序直到步骤（b）中确定的数字。
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