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31. 发明授权

US5841551A Data processor 失效
标题翻译：数据处理器
公开(公告)号：US5841551A
公开(公告)日：1998-11-24
申请号：US591712
申请日：1996-01-25
申请人： Munehiro Nakatani , Hiroyuki Suzuki , Kazuomi Sakatani
发明人： Munehiro Nakatani , Hiroyuki Suzuki , Kazuomi Sakatani
IPC分类号： G06T9/00 , H04N1/40 , H04N1/41 , H04N1/413 , H04N7/26 , H04N7/30 , H04N1/415
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, in order to discriminate the kind of image in a processing block quickly and correctly, image data is divided into first processing blocks of m*m pixel matrices and second processing blocks of M*M pixel matrices wherein M>m. The second processing block includes the data of the first processing block and adjacent pixels around it. Image data in the first and second processing blocks are subjected to orthogonal transform to generate coefficient data. The image type is discriminated as a character image, a dot image or a half-tone image according to the coefficient data of the second processing block and an appropriate quantization table is then selected. Having identified the appropriate quantization table based on analysis of second processing block, image data of the first processing block is quantized according to the thus selected quantization table and quantized data is thereby coded.
摘要翻译：在数据处理器中，为了快速正确地识别处理块中的图像种类，将图像数据划分为m×m个像素矩阵的第一处理块和M> M个像素矩阵的第二处理块，其中M> m。第二处理块包括第一处理块和其周围的相邻像素的数据。对第一处理块和第二处理块中的图像数据进行正交变换，生成系数数据。根据第二处理块的系数数据和适当的量化表，选择图像类型作为字符图像，点图像或半色调图像。通过基于第二处理块的分析确定了适当的量化表，根据这样选择的量化表对第一处理块的图像数据进行量化，从而编码量化数据。

32. 发明授权

US5838699A Line memory circuit 失效
标题翻译：线路存储电路
公开(公告)号：US5838699A
公开(公告)日：1998-11-17
申请号：US897001
申请日：1997-07-18
申请人： Yoshifumi Imanaka
发明人： Yoshifumi Imanaka
IPC分类号： G11C7/00 , G06T1/60 , G11C15/00 , H03M7/30 , H04N1/413 , H04N1/417 , G06F7/02
CPC分类号： G06T1/60 , G11C15/00 , H04N1/417
摘要： A line memory circuit is provided which simultaneously carries out line memory writing and line data comparison in order to improve high speed processing. The line memory circuit of the present invention has an information bit (line match/mismatch bit) encoded at the head of each line in the line memory circuit used in an encoding circuit, wherein encoding of a picture element data of the line is avoided when a matching result is obtained. In the line memory circuit, input picture element data are stored into a line memory, and the input data are sequentially compared with picture element data on the preceding line stored in the line memory. Picture element data on the preceding line are sequentially encoded during the next line. The line memory circuit completes encoding of input picture element data during a subsequent line where picture element data are inputted, which enables high speed encoding of the input picture element data.
摘要翻译：提供一种行存储器电路，其同时进行行存储器写入和行数据比较，以便改进高速处理。本发明的行存储器电路具有在编码电路中使用的行存储器电路中的每一行的头部处编码的信息位（行匹配/不匹配位），其中避免了对行的像素数据的编码，获得匹配结果。在行存储器电路中，将输入像素数据存储到行存储器中，并且将输入数据顺序地与存储在行存储器中的前一行上的图像元素数据进行比较。前一行的图像元素数据在下一行中顺序编码。行存储器电路在输入图像元素数据的后续行中完成输入图像元素数据的编码，这能够对输入图像元素数据进行高速编码。

33. 发明授权

US5684603A Coding apparatus for bi-level images halftoned with error diffusion algorithm 失效
标题翻译：用于错误扩散算法半双工图像的编码设备
公开(公告)号：US5684603A
公开(公告)日：1997-11-04
申请号：US451125
申请日：1995-05-26
申请人： Satoshi Katsuno , Atsushi Koike , Yoshinori Hatori
发明人： Satoshi Katsuno , Atsushi Koike , Yoshinori Hatori
IPC分类号： H04N1/40 , H04N1/41 , H04N1/413 , G06K9/36
CPC分类号： H04N1/4105
摘要： It is sought to provide a coding apparatus which permits high efficiency coding of bi-level images with black-and-white pixels halftoned with error diffusion algorithm. An image input/pixel selection unit selects, from an input image as a bi-level image with black-and-white pixels halftoned with error diffusion algorithm, first selected pixels with respect to a pixel "?" to be coded and second selected pixels as peripheral pixels with respect to the first selected pixels. The first selected pixels are fed to a pixel pattern binary scale translator for translation into a binary number. The second selected pixels, on the other hand, is fed to a pixel value adder for counting of black pixels. The count is fed to a binary scale translator for translation into a binary number. The binary number outputs of the pixel pattern binary scale translator and the binary scale translator are combined to be input to an address input terminal of a ROM having a coding information table.
摘要翻译：寻求提供一种编码装置，其允许利用误差扩散算法半色调的黑白像素对双电平图像进行高效编码。图像输入/像素选择单元从输入图像中选择具有用误差扩散算法进行半色调的黑白像素的双电平图像，相对于像素“α”的第一选择像素，被编码和第二选择像素作为相对于第一选择像素的周边像素。将第一选择的像素馈送到像素图案二进制缩放翻译器，以便翻译成二进制数。另一方面，第二选择的像素被馈送到用于计数黑色像素的像素值加法器。计数被馈送到二进制比例翻译器以便翻译成二进制数。像素图形二进制比例变换器和二进制转换器的二进制数输出被组合以输入到具有编码信息表的ROM的地址输入端。

34. 发明授权

US5570203A Image signal coding device 失效
标题翻译：图像信号编码装置
公开(公告)号：US5570203A
公开(公告)日：1996-10-29
申请号：US325143
申请日：1994-10-20
申请人： Kazuhiro Suzuki , Taro Yokose , Toshiaki Yoshinari , Yutaka Koshi , Koh Kamizawa
发明人： Kazuhiro Suzuki , Taro Yokose , Toshiaki Yoshinari , Yutaka Koshi , Koh Kamizawa
IPC分类号： G06T9/00 , H03M7/30 , H04N1/41 , H04N1/413 , H04N1/415
CPC分类号： H04N19/126 , H04N19/60 , H04N19/124 , H04N19/132
摘要： An image signal coding device capable of attaining a high-speed coding operation without increasing a circuit scale. The image signal coding device includes a DCT section for performing two-dimensional orthogonal transform to each of plural pixel blocks obtained by dividing an image signal to generate a transform coefficient, a linear quantization section for linearly quantizing the transform coefficient by using given quantization characteristics to generate a quantized coefficient, and a variable length coding section for performing variable length coding to the quantized coefficient to generate code data. The image signal coding device further includes an effective region holding section for holding region information including a range of the transform coefficient to be linearly quantized by the linear quantization section and a range of the quantized coefficient to be coded by the variable length coding section.
摘要翻译：一种能够在不增加电路规模的情况下实现高速编码操作的图像信号编码装置。图像信号编码装置包括：DCT部分，用于对通过划分图像信号获得的多个像素块中的每一个进行二维正交变换，以生成变换系数;线性量化部分，用于通过使用给定的量化特性对变换系数进行线性量化生成量化系数，以及可变长度编码部分，用于对量化系数执行可变长度编码以生成代码数据。图像信号编码装置还包括有效区域保持部分，用于保持包括由线性量化部分线性量化的变换系数的范围的区域信息和由可变长度编码部分编码的量化系数的范围。

35. 发明授权

US5553200A Method and apparatus for providing bit-rate reduction and reconstruction of image data using dither arrays 失效
标题翻译：使用抖动阵列提供图像数据的比特率降低和重构的方法和装置
公开(公告)号：US5553200A
公开(公告)日：1996-09-03
申请号：US398369
申请日：1995-03-03
申请人： Yigal Accad
发明人： Yigal Accad
IPC分类号： B41J2/52 , G06F3/12 , G06T5/00 , H04N1/40 , H04N1/405 , H04N1/407 , H04N1/41 , H04N1/411 , H04N1/46 , H04N1/60 , H04N1/64 , H04N1/413
CPC分类号： H04N1/648 , H04N1/407
摘要： An apparatus and method for providing bit-rate reduction and reconstruction of image data. Bit-rate reduction of 32-bit CMYK combinations into 16-bit code words is performed on a pixel by pixel basis by stepwise calculations or by using LUTs. Bit-rate reduction takes place during PostScript.RTM. interpretation where the output image pixels are generated in a possibly arbitrary order. Bit expansion from 16-bit code words to 32-bit data for 8 bits per component of the CMYK image values is performed while real time printing, preferably by direct table look up. During bit-rate reduction, the image data may be non-linearly corrected to compensate for perceptual non-uniformities and for non-linearities in the input/output relationship of the reproduction device. Quantization and coding may be accomplished by thresholding the non-linearly corrected image data by values from a dither array. The coded image is stored in the frame buffer and subsequently retrieved, de-dithered, dequantized and inversely transformed for the perceptual non-linearity before printing.
摘要翻译：一种用于提供图像数据的比特率降低和重构的装置和方法。通过逐步计算或使用LUT逐像素地对32位CMYK组合进行16位码字的比特率降低。在PostScript TM解释过程中进行比特率降低，其中输出图像像素以可能的任意顺序生成。在实时打印时，优选通过直接表查找，执行从CMYK图像值的每个分量的16位码字到32位数据的位扩展。在比特率降低期间，图像数据可以被非线性校正以补偿感知不均匀性和对于再现设备的输入/输出关系中的非线性。可以通过从抖动阵列的值对非线性校正图像数据进行阈值来实现量化和编码。编码图像被存储在帧缓冲器中，随后在打印之前对于感知非线性进行检索，去抖动，去量化和逆变换。

36. 发明授权

US5535311A Method and apparatus for image-type determination to enable choice of an optimum data compression procedure 失效
标题翻译：用于图像类型确定以使得能够选择最佳数据压缩过程的方法和装置
公开(公告)号：US5535311A
公开(公告)日：1996-07-09
申请号：US282399
申请日：1994-07-28
申请人： Gary Zimmerman
发明人： Gary Zimmerman
IPC分类号： B41J5/30 , G06F5/00 , G06T9/00 , H03M7/30 , H03M7/48 , H04N1/40 , H04N1/405 , H04N1/411 , H04N1/413 , G06K15/00
CPC分类号： H04N1/40062 , G06T9/005 , H03M7/3084 , H03M7/48 , H04N1/411
摘要： A method for identifying an image type of a multi-pixel image is employed in an apparatus that includes multiple data compression procedures. The data compression procedures operate with varying efficiencies on different image types. Pixels defining an image are represented by binary 1/0 values that are arranged in n-bit data segments (e.g., bytes). The method includes the steps of: counting a number of 1-to-0 and 0-to-1 transitions in each data segment; finding an average number of transitions over all data segments wherein such transitions occur; determining for all data segments in the multi-pixel image, a transition array comprising cumulative numbers of data segments having 0, 1, 2, . . . n-1 transitions, respectively; and employing the average number of transitions per data segment and the transition array to identify a data compression procedure to be employed for the multi-pixel image.
摘要翻译：在包括多个数据压缩过程的装置中采用用于识别多像素图像的图像类型的方法。数据压缩过程在不同图像类型上以不同的效率运行。定义图像的像素由排列在n位数据段（例如，字节）中的二进制1/0值表示。该方法包括以下步骤：对每个数据段中的1到0和0到1转换的数目进行计数; 找到其中发生这种转换的所有数据段的平均转移次数; 确定多像素图像中的所有数据段，包括具有0,1,2，...的数据段的累积数目的转移阵列。。。 n-1转换; 并且使用每个数据段的平均转移次数和转移阵列来识别要用于多像素图像的数据压缩过程。

37. 发明授权

US5524067A Image processing device employing coding with edge information preserved 失效
标题翻译：采用边缘信息编码的图像处理装置保存
公开(公告)号：US5524067A
公开(公告)日：1996-06-04
申请号：US466237
申请日：1995-06-06
申请人： Hidetaka Miyake , Toshi Minami , Osamu Nakamura
发明人： Hidetaka Miyake , Toshi Minami , Osamu Nakamura
IPC分类号： H04N1/413 , G06T9/00 , H04N1/41 , H04N1/415 , H04N1/417 , H04N5/926 , H04N7/24 , H04N19/00 , H04N19/11 , H04N19/12 , H04N19/136 , H04N19/14 , H04N19/189 , H04N19/196 , H04N19/463 , H04N19/50 , H04N19/70 , H04N19/90 , H04N19/91 , G06K9/36 , G06K9/46 , H04N7/12
CPC分类号： H04N1/41 , H04N1/417 , H04N19/593 , H04N19/98 , H04N5/9261
摘要： An image processing device including a blocking section for dividing an input image into a plurality of blocks each consisting of N1.times.N2 (N1, N2: positive integers) picture elements; a block attribute determining section for determining an attribute of each block, the attribute being defined as one of a flat portion having substantially no density variation in each block, a semi-flat portion having a binary density distribution in each block, and an edge portion having a steep density variation in each block; a first coding section for coding each block of the flat portion; a second coding section for coding each block of the semi-flat portion; a third coding section for predictively coding the picture elements in each block of the edge portion; a fourth coding section for coding the attribute determined by the block attribute determining section; and a code assembling section for assembling codes obtained by the first to fourth coding sections. Accordingly, an image quality, compression rate, processing time, etc. can be further improved.
摘要翻译：一种图像处理装置，包括用于将输入图像分割成由N1xN2（N1，N2：正整数）像素组成的多个块的阻挡部分; 块属性确定部分，用于确定每个块的属性，所述属性被定义为在每个块中基本上没有密度变化的平坦部分之一，在每个块中具有二进制密度分布的半平坦部分，以及边缘部分在每个块中具有陡峭的密度变化; 用于编码平坦部分的每个块的第一编码部分; 第二编码部分，用于对半平坦部分的每个块进行编码; 第三编码部分，用于对边缘部分的每个块中的图像元素进行预测编码; 第四编码部分，用于对由块属性确定部分确定的属性进行编码; 以及用于组合由第一至第四编码部分获得的代码的代码组合部分。因此，可以进一步提高图像质量，压缩率，处理时间等。

38. 发明授权

US5461682A Image filing apparatus providing image data suitable for several input/output devices 失效
标题翻译：提供适合多个输入/输出装置的图像数据的图像归档装置
公开(公告)号：US5461682A
公开(公告)日：1995-10-24
申请号：US48275
申请日：1993-04-14
申请人： Keiichi Nomura
发明人： Keiichi Nomura
IPC分类号： H04N1/21 , G06T1/00 , G06T9/00 , H04N1/32 , H04N1/40 , H04N1/41 , H04N1/413 , G06K9/36
CPC分类号： H04N1/41 , G06T9/007 , H04N1/32502 , H04N1/32529 , H04N1/40062 , H04N2201/0081 , H04N2201/0082 , H04N2201/0089
摘要： An image filing apparatus according to the invention comprises a unit for inputting an image, a plurality of data compressing and extending units each for compressing the input image data to store the compressed image data and each for extending the compressed image data to output the extended image data to at least one of image outputting units such as an image display, an image printer and the like, and a control unit for selecting one of the plurality of data compressing and extending units in accordance with an image type of the input image to supply it to the selected data compressing and extending unit upon the compression and for supplying the compressed image data to the selected data compressing and extending unit upon the extension. Thus, the optimum compressing and extending method is selected and applied to the input image data in accordance with the type of the image outputting unit from which the image data is to be output.
摘要翻译：根据本发明的图像归档装置包括用于输入图像的单元，多个数据压缩和扩展单元，每个单元用于压缩输入图像数据以存储压缩图像数据，并且每个用于扩展压缩图像数据以输出扩展图像数据到诸如图像显示器，图像打印机等的图像输出单元中的至少一个，以及用于根据输入图像的图像类型选择多个数据压缩和扩展单元之一的控制单元，以供应在压缩时对所选择的数据压缩和扩展单元，并且在扩展时将压缩的图像数据提供给所选择的数据压缩和扩展单元。因此，根据要从其输出图像数据的图像输出单元的类型，选择最佳压缩和扩展方法并将其应用于输入图像数据。

39. 发明授权

US5379123A Facsimile apparatus having improved coding for transmission of plural images without interruption 失效
标题翻译：具有改进的编码用于传输多个图像而不中断的传真装置
公开(公告)号：US5379123A
公开(公告)日：1995-01-03
申请号：US96449
申请日：1993-07-26
申请人： Junnosuke Kataoka
发明人： Junnosuke Kataoka
IPC分类号： H04N1/413 , H04N1/411 , H04N1/419
CPC分类号： H04N1/411
摘要： A facsimile apparatus for high-speed transmission of a plurality of images. If the last one line of an image data to be transmitted first among the connected images is not an all-white line, an all-white line is added to the data and the image data is MMR-encoded. Further, zero to N-1 "1" bits (N : a system bus width) are added to the coded data so as to render the coded data a multiple of a predetermined data unit. The coded data is transferred to a modem for image transmission. Thereafter, a subsequent MMR-coded image data is transmitted. The apparatus can thus transmit byte-packed image data stored in a memory in advance for image transmission without decoding and encoding the image data or re-executing byte-packing.
摘要翻译：一种用于高速传输多个图像的传真装置。如果连接的图像中要首先发送的图像数据的最后一行不是全白线，则将全白线添加到数据，并且图像数据被MMR编码。此外，将零到N-1“1”比特（N：系统总线宽度）加到编码数据中，以使编码数据成为预定数据单元的倍数。编码数据被传送到用于图像传输的调制解调器。此后，发送随后的MMR编码图像数据。因此，该装置可以预先传送存储在存储器中的字节打包图像数据用于图像传输，而不对图像数据进行解码和编码或重新执行字节打包。

40. 发明授权

US5377021A Telematic terminal which produces and edits mixed mode document 失效
标题翻译：生产和编辑混合模式文档的远程信息终端
公开(公告)号：US5377021A
公开(公告)日：1994-12-27
申请号：US804721
申请日：1991-12-11
申请人： Yukikazu Mori
发明人： Yukikazu Mori
IPC分类号： H04N1/00 , G06F17/21 , G06T11/60 , H04N1/32 , H04N1/333 , H04N1/387 , H04N1/413 , H04N1/415
CPC分类号： H04N1/33307 , H04N1/3871
摘要： A telematic terminal generally used for a group 4 facsimile apparatus which produces a mixed mode document and transmits to another communication apparatus. The mixed mode document is divided into a plurality of blocks and each block of mixed mode document is judged to be constructed with a normal format or abnormal format. Since the block constructed with the abnormal format is indicated on a screen of a display unit of the telematic terminal and what kind of abnormal format the other communication apparatus can manage is transmitted, the operator can easily learn whether or not the mixed mode document can be properly transmitted to the other communication apparatus. If necessary, the operator can edit the block so that the other communication apparatus can receive the mixed mode document.
摘要翻译：通常用于生成混合模式文档并发送到另一通信装置的组4传真装置的远程信息终端。混合模式文档被分成多个块，并且混合模式文档的每个块被判断为以正常格式或异常格式构造。由于以异常格式构成的块在远程信息终端的显示单元的屏幕上指示，并且发送其他通信设备可以管理的什么样的异常格式，操作者可以容易地了解混合模式文档是否可以正确地发送到另一个通信装置。如果需要，操作员可以编辑块，使得其他通信装置可以接收混合模式文档。

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