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21. 发明授权

US6075471A Adaptive coding method 失效
标题翻译：自适应编码方法
公开(公告)号：US6075471A
公开(公告)日：2000-06-13
申请号：US41134
申请日：1998-03-12
申请人： Tomohiro Kimura , Fumitaka Ono , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida
发明人： Tomohiro Kimura , Fumitaka Ono , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida
IPC分类号： H04N19/00 , H03M7/30 , H03M7/40 , H04N1/413 , H04N19/423 , H04N19/91 , H03M7/00
CPC分类号： H03M7/4006
摘要： An adaptive coding method is comprised of: a fourth step (508), (510) for calculating an occurrence frequency of either the more probable symbol (MPS) or the less probable symbol (LPS) with respective to the entered input; a fifth step (511) for comparing an occurrence time accumulated value calculated as the occurrence frequency at the fourth step with a preselected value (threshold value), and for reducing the occurrence time accumulated value by 1/2 in the case that the occurrence time accumulated value reaches the preselected value (threshold value); and a sixth step (513) for defining the more probable symbol (MPS) and the less probable symbol (LPS) in correspondence with a predetermined region on a numerical line with respect to the data signal to thereby output coordinate values on the numerical line as a corded word.
摘要翻译：自适应编码方法包括：第四步骤（508），（510），用于相应于输入的输入计算更可能符号（MPS）或较小可能符号（LPS）的出现频率; 第五步骤（511），用于将作为第四步骤的出现频率计算的出现时间累积值与预选值（阈值）进行比较，并且将发生时间累加值减少+ E，将1/2 + EE 发生时间累积值达到预选值（阈值）的情况; 以及第六步骤（513），用于与数据信号上的数字行上的预定区域相对应地定义更可能的符号（MPS）和较少的可能符号（LPS），从而在数字线上输出坐标值作为一个有用的词

22. 发明授权

US6067382A Image coding based on the target code length 失效
标题翻译：基于目标码长的图像编码
公开(公告)号：US6067382A
公开(公告)日：2000-05-23
申请号：US17732
申请日：1998-02-03
申请人： Mitsuru Maeda
发明人： Mitsuru Maeda
IPC分类号： H04N1/41 , G06T9/00 , H04N1/413 , G06K9/00
CPC分类号： G06T9/007
摘要： A target code length is designated at a code length designation unit, and the entire input image data is encoded by a continuous gradation region encoding unit to obtain the target code length. On the other hand, a region segmentation unit segments the input image data into regions, a limited color region encoding unit encodes limited color regions of the segmented regions, and the continuous gradation region encoding unit encodes continuous gradation regions, so as to obtain the target code length. Either the codes obtained when the entire input image data is encoded or the codes obtained when the image data is encoded by the limited color region encoding unit and continuous gradation region encoding unit in units of regions are output on the basis of the coding unit of the codes of the entire input image data, and the coding unit of the codes of the continuous gradation region.
摘要翻译：在代码长度指定单元中指定目标代码长度，并且由连续灰度区域编码单元编码整个输入图像数据以获得目标代码长度。另一方面，区域分割单元将输入图像数据分割成区域，有限颜色区域编码单元编码分割区域的有限颜色区域，并且连续灰度区域编码单元对连续灰度区域进行编码，以获得目标代码长度。当编码整个输入图像数据时获得的代码或者当以区域为单位在图像数据被限制颜色区域编码单元和连续灰度区域编码单元编码时获得的代码是基于整个输入图像数据的代码和连续灰度区域的代码的编码单元。

23. 发明授权

US6049630A Data compression using adaptive bit allocation and hybrid lossless entropy encoding 失效
标题翻译：使用自适应位分配和混合无损熵编码的数据压缩
公开(公告)号：US6049630A
公开(公告)日：2000-04-11
申请号：US962927
申请日：1997-10-27
申请人： Zhengrong Wang , Paul Steven Houle
发明人： Zhengrong Wang , Paul Steven Houle
IPC分类号： G06T9/00 , H03M7/30 , H03M7/40 , H03M7/46 , H04N1/413 , H04N7/26 , H04N7/30
CPC分类号： H03M7/46 , H04N19/117 , H04N19/126 , H04N19/14 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/192 , H04N19/60 , H04N19/61 , H04N19/63 , H04N19/10 , H04N19/115 , H04N19/13 , H04N19/146
摘要： A method and apparatus for adaptive bit allocation and hybrid lossless entropy encoding in a lossy compression system. The invention includes three components: (1) a transform stage to decorrelate image data into a baseband and multiple subbands, (2) a quantization stage to quantize the resulting transform coefficients, and (3) a lossless entropy coder stage to encode the quantized indexes. In the preferred embodiment, the transform stage uses a wavelet transform algorithm. The quantization stage adaptively estimates values for parameters defining an approximation between quantization size and the logarithm of quantization error, and recursively calculates the optimal quantization size for each band to achieve a desired bit rate. The baseband and subbands are transformed into quantization matrices using the corresponding quantization sizes. The lossless entropy coder stage uses the observation that the entropy property of run lengths of zero index values in the subband quantization matrices is different from the entropy property of non-zero indices. Each quantization matrix is parsed so that each non-zero index is extracted into a separate stream, and the remaining position information is parsed into an odd stream of run length values for "0" and an even stream of run length values for "1". These three streams are Huffman coded separately in conventional fashion. This hybrid algorithm gives an approximately 10% percent improvement over conventional run length and Huffman coding for similar images. The overall compression algorithm gives about 2.about.6 dB improvement in terms of peak signal-to-noise ratio (PSNR) over JPEG algorithms for similar images at similar bit rates.
摘要翻译：一种用于有损压缩系统中的自适应比特分配和混合无损熵编码的方法和装置。本发明包括三个部分：（1）将图像数据解相关到基带和多个子带中的变换阶段，（2）量化级量化所得到的变换系数，以及（3）无损熵编码器级对量化索引进行编码。在优选实施例中，变换阶段使用小波变换算法。量化级自适应地估计用于定义量化尺寸与量化误差的对数之间的近似的参数的值，并递归地计算每个频带的最佳量化尺寸以获得期望的比特率。使用相应的量化尺寸将基带和子带变换成量化矩阵。无损熵编码器级使用子带量化矩阵中的零索引值的游程长度的熵特性与非零指数的熵特性不同的观察。每个量化矩阵被解析为使得每个非零索引被提取到单独的流中，并且剩余位置信息被解析为“0”的游程长度值的奇数流和“1”的游程长度值的偶数流。这三个流以常规方式分别进行霍夫曼编码。这种混合算法比常规运行长度提供了大约10％的改进，并且对于类似的图像给出了霍夫曼编码。对于相似比特率的JPEG图像，整体压缩算法在峰值信噪比（PSNR）方面提供了大约2dB的改进。

24. 发明授权

US6025932A Digital information encoding apparatus, digital information encoding/decoding apparatus, digital information encoding method, and digital information decoding method 失效
标题翻译：数字信息编码装置，数字信息编码/解码装置，数字信息编码方法和数字信息解码方法
公开(公告)号：US6025932A
公开(公告)日：2000-02-15
申请号：US677738
申请日：1996-07-10
申请人： Yoshifumi Imanaka
发明人： Yoshifumi Imanaka
IPC分类号： H04N19/00 , G06T9/00 , H03M7/40 , H04N1/41 , H04N1/413 , H04N1/417 , H04N19/42 , H04N19/423 , H04N19/593 , H04N19/85 , H04N19/91 , H04N1/40 , H04N1/415
CPC分类号： G06T9/004 , H04N1/417
摘要： The digital information encoding apparatus comprises a context generation means for extracting a reference picture element from an inputted picture data, a context storage means for temporarily storing said context, a context table storage means comprising a read address input node, a read/write context table storing portion, a data output node, a write address input node and a data input node, a probability estimating table storage means comprising an address input node for receiving a probability estimation index in a probability estimating data, and a data output node which outputs a probability estimating data, and an arithmetic calculation means for receiving a picture data to be encoded and for outputting a renewal data including both the prediction symbol and the probability estimation index to said context table storage means.
摘要翻译：数字信息编码装置包括用于从输入的图像数据中提取参考图像元素的上下文生成装置，用于临时存储所述上下文的上下文存储装置，包括读取地址输入节点的上下文表存储装置，读取/写入上下文表存储部分，数据输出节点，写地址输入节点和数据输入节点;概率估计表存储装置，包括用于在概率估计数据中接收概率估计索引的地址输入节点，以及数据输出节点，其输出概率估计数据和用于接收要编码的图像数据并用于将包括预测符号和概率估计索引的更新数据输出到所述上下文表存储装置的算术计算装置。

25. 发明授权

US6006273A Method for interleaving data for seamless playback of multiple program versions having common material 失效
公开(公告)号：US6006273A
公开(公告)日：1999-12-21
申请号：US730328
申请日：1996-10-15
申请人： Lewis S. Ostrover , Gregory B. Thagard , Joseph E. Wall, III , Christopher J. Cookson
发明人： Lewis S. Ostrover , Gregory B. Thagard , Joseph E. Wall, III , Christopher J. Cookson
IPC分类号： G11B20/10 , G11B20/12 , G11B27/034 , G11B27/10 , G11B27/32 , H04N5/85 , H04N5/913 , H04N9/804 , H04N9/806 , H04N9/82 , H04N9/877 , H04N1/413
CPC分类号： H04N9/8227 , G11B20/10 , G11B20/1254 , G11B27/034 , G11B27/105 , G11B27/329 , G11B2220/2562 , H04N2005/91321 , H04N5/85 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8216 , H04N9/8233 , H04N9/877
摘要： A method for formatting digital data on an optical disk that represents at least two versions of the same program. Data sequences which are unique to each version and data sequences which are common to the two of them are interleaved in a single data stream. In order to achieve seamless play of both versions on a player that is compatible with the disk format but has limited buffer storage, data which would otherwise be common to both versions is placed redundantly in the data sequences which are unique to both versions.

26. 发明授权

US5995241A Data processor 失效
标题翻译：数据处理器
公开(公告)号：US5995241A
公开(公告)日：1999-11-30
申请号：US591715
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
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： Image data of a pixel matrix are subjected to orthogonal transformation to coefficient data, which are then quantized with a first quantization table for character image and with a second quantization table for half-tone image. Image data are discriminated as character image data or half-tone image data according to the quantization data. The quantization data corresponding to the discrimination are subjected to entropy coding. Image data can be divided into first processing blocks of m*m pixel matrices and second processing blocks of M*M pixel matrices where M>m. A second processing block includes one first processing block and adjacent pixels. Image data in first and second processing blocks are subjected to orthogonal transformation to coefficient data. Coefficient data of the second processing block indicates whether the image is a character image, a dot image, or a half-tone image, permitting selection of an appropriate quantization table. Image data of the first processing block is quantized according to the selected quantization table and quantized data are coded. In order to discriminate a dot image, two discrimination windows are provided, with the first consisting of coefficient data around the DC component and the second consisting of other data. Orthogonal transform coefficients of image data are calculated, and maximum absolute values in the windows are obtained. An image is discriminated to be a dot image if the first window maximum is larger than a prescribed threshold value and is larger than the second window maximum.
摘要翻译：对像素矩阵的图像数据进行正交变换到系数数据，然后用用于字符图像的第一量化表和用于半色调图像的第二量化表进行量化。图像数据根据量化数据被区分为字符图像数据或半色调图像数据。对与判别对应的量化数据进行熵编码。图像数据可以分为m×m个像素矩阵的第一处理块和M> M个M×M个像素矩阵的第二处理块。第二处理块包括一个第一处理块和相邻像素。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。第二处理块的系数数据指示图像是否是字符图像，点图像或半色调图像，允许选择适当的量化表。根据所选择的量化表对第一处理块的图像数据进行量化，对量化数据进行编码。为了区分点图像，提供了两个识别窗口，其中第一个包括围绕DC分量的系数数据，第二个包括其他数据。计算图像数据的正交变换系数，并获得窗口中的最大绝对值。如果第一窗口最大值大于规定的阈值并且大于第二窗口最大值，则将图像区分为点图像。

27. 发明授权

US5909287A Image processing apparatus and method 失效
标题翻译：图像处理装置及方法
公开(公告)号：US5909287A
公开(公告)日：1999-06-01
申请号：US610089
申请日：1996-02-29
申请人： Masaaki Okada
发明人： Masaaki Okada
IPC分类号： H04N1/401 , H04N1/403 , H04N1/407 , H04N1/413 , H04N1/40
CPC分类号： H04N1/4076
摘要： A document serving as a white reference (a reference white background) is read to create shading data, the shading data are stored, the checksum of these shading data is obtained and this value also is stored. The checksum of the stored shading data is obtained before the document is read, and this obtained value of the checksum is compared with the already stored value of the checksum of the shading data. If the values of both checksums are found to coincide as a result of the comparison, image processing using the stored shading data is executed. If the values of both checksums do not coincide, however, image processing using shading data having a fixed value is executed.
摘要翻译：读取作为白色参考（参考白色背景）的文档以创建阴影数据，存储着色数据，获得这些阴影数据的校验和，并且还存储该值。在读取文档之前获得存储的阴影数据的校验和，并且将所获得的校验和值与已经存储的阴影数据的校验和的值进行比较。如果作为比较的结果发现两个校验和的值一致，则执行使用所存储的阴影数据的图像处理。然而，如果两个校验和的值不一致，则执行使用具有固定值的阴影数据的图像处理。

28. 发明授权

US5903677A Image encoding and recording apparatus 失效
标题翻译：图像编码和记录装置
公开(公告)号：US5903677A
公开(公告)日：1999-05-11
申请号：US465715
申请日：1995-06-06
申请人： Masato Kosugi , Taku Yamagami
发明人： Masato Kosugi , Taku Yamagami
IPC分类号： H04N1/21 , H04N1/41 , H04N5/77 , H04N5/781 , H04N5/85 , H04N5/907 , H04N5/926 , H04N7/26 , H04N7/30 , H04N9/804 , H04N1/413 , H04N1/419
CPC分类号： H04N19/00 , H04N1/2112 , H04N1/2129 , H04N1/2137 , H04N1/215 , H04N1/2158 , H04N1/41 , H04N19/152 , H04N19/162 , H04N19/172 , H04N19/184 , H04N19/192 , H04N19/60 , H04N5/77 , H04N5/772 , H04N19/13 , H04N19/91 , H04N2101/00 , H04N2201/214 , H04N5/781 , H04N5/85 , H04N5/907 , H04N5/9264 , H04N9/8047
摘要： An image coding apparatus which includes a first means for fixing or limiting quantity of code produced by compressively coding a given image data, independent of the image, a second means for conducting variable length compression of which quantity of code produced varies according to the image, and a selection means for selecting the first and second means.
摘要翻译：一种图像编码装置，包括：第一装置，用于固定或限制与独立于图像的压缩编码给定图像数据产生的代码量;第二装置，用于进行可变长度压缩，所述第二装置根据图像产生不同的代码量，以及选择装置，用于选择第一和第二装置。

29. 发明授权

US5898794A Image compression method and image processing system 失效
标题翻译：图像压缩方法和图像处理系统
公开(公告)号：US5898794A
公开(公告)日：1999-04-27
申请号：US878201
申请日：1997-06-18
申请人： Satoshi Sonohara , Shigeki Furuta , Hitoshi Matsumoto , Motoyuki Morita
发明人： Satoshi Sonohara , Shigeki Furuta , Hitoshi Matsumoto , Motoyuki Morita
IPC分类号： H04N1/41 , G06T1/00 , G06T9/00 , G06T11/00 , H04N1/413 , H04N11/04
CPC分类号： G06T9/00
摘要： Disclosed is an image processing system including an image input unit, an extraction unit, a plurality of compression process parts and a selection unit to compress a 1-frame image down to a less amount of color information. The image input unit takes in a plurality of frame images per frame. The extraction unit extracts each of the taken-in frame images per unit area of a designated size. The plurality of compression process parts effects compression processes different from each other with respect to pels contained in each unit area. The selection unit selects one compression process part from the plurality of compression process parts for compressing the unit area of the designated size.
摘要翻译：公开了一种图像处理系统，包括图像输入单元，提取单元，多个压缩处理部分和选择单元，用于将1帧图像压缩到较少量的颜色信息。图像输入单元每帧拍摄多个帧图像。提取单元提取每个指定大小的每单位面积的所取入的帧图像。多个压缩处理部分相对于每个单位区域中包含的像素实现彼此不同的压缩处理。选择单元从多个压缩处理部分中选择一个压缩处理部分，以压缩指定大小的单位面积。

30. 发明授权

US5870549A Systems and methods for storing, delivering, and managing messages 失效
公开(公告)号：US5870549A
公开(公告)日：1999-02-09
申请号：US944741
申请日：1997-10-06
申请人： Charles R. Bobo, II
发明人： Charles R. Bobo, II
IPC分类号： G06F13/00 , H04L12/58 , H04L29/06 , H04L29/08 , H04M3/493 , H04M3/53 , H04M3/533 , H04M3/537 , H04M7/12 , H04N1/00 , H04N1/32 , H04N1/413
CPC分类号： H04L29/06 , H04L51/066 , H04L51/36 , H04M3/4938 , H04M3/5307 , H04M3/53316 , H04N1/00209 , H04N1/00458 , H04N1/324 , H04N1/32438 , H04L51/24 , H04L51/28 , H04L67/02 , H04L69/08 , H04M2201/52 , H04M2201/60 , H04M2203/2066 , H04M2203/253 , H04M2203/4509 , H04M2203/4536 , H04M3/53333 , H04M3/53358 , H04M3/537 , H04M7/12 , H04N2201/0068 , H04N2201/0086 , H04N2201/0093 , H04Q2213/13034 , H04Q2213/1305 , H04Q2213/13095 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13175 , H04Q2213/13204 , H04Q2213/13216 , H04Q2213/13286 , H04Q2213/13292 , H04Q2213/13336 , H04Q2213/13374 , H04Q2213/13389 , H04Q2213/13405
摘要： A Message Storage and Deliver System (MSDS) is connected to the public switched telephone network (PSTN) and receives incoming calls with these calls being facsimile, voice, or data transmissions. The MSDS detects the type of call and stores the message signal in a database. The MSDS is also connected to the Internet and has a hyper-text transfer protocol deamon (HTTPD) for receiving requests from users. The HTTPD forwards requests for certain files or messages to a network server which transmits at least part of the message to the HTTPD and then to the user. In addition to requests for certain documents, the HTTPD may also receive a request in the form of a search query. The search query is forwarded from the HTTPD to an application program for conducting the search of the database. The results of the search are forwarded through the HTTPD to the user. The user may then select one or more files or messages from the search results and may save the search for later reference.

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