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31. 发明授权

US4743973A Encoding method for facsimile signal 失效
标题翻译：传真信号的编码方法
公开(公告)号：US4743973A
公开(公告)日：1988-05-10
申请号：US886952
申请日：1986-07-24
申请人： Toshiaki Endo , Yasuhiro Yamazaki
发明人： Toshiaki Endo , Yasuhiro Yamazaki
IPC分类号： H04N1/411 , H04N1/417 , H04N1/41
CPC分类号： H04N1/4175 , H04N1/411
摘要： An encoding method for facsimile signal which is characterized by encoding data of a line selected out of the all lines of input facsimile signals in a manner of skipping over a predetermined number of lines according to a predetermined encoding method and by encoding the data of one of the thus skipped-over lines from a basic element of higher picture quality contribution judged with reference made to the data of the lines preceding of and/or subsequent to the encoding line which have already been encoded.
摘要翻译：一种用于传真信号的编码方法，其特征在于根据预定的编码方式，以跳过预定数量的行的方式对输入传真信号的所有行选择的行的数据进行编码，并且通过对从已经编码的编码线之前和/或之后的行的数据判断的较高图像质量贡献的基本元素的跳过的行。

32. 发明授权

US4736407A Computer assisted graphic teleconferencing method and apparatus 失效
标题翻译：计算机辅助图形电话会议方法和装置
公开(公告)号：US4736407A
公开(公告)日：1988-04-05
申请号：US1290
申请日：1987-01-08
申请人： Neil S. Dumas
发明人： Neil S. Dumas
IPC分类号： H04L29/06 , H04M3/56 , H04M11/06 , H04N1/32 , H04N1/411 , H04M11/00
CPC分类号： H04N1/411 , H04M11/066 , H04M3/567 , H04N1/32 , H04L67/38
摘要： An audiographic telephone conferencing system between a plurality of parties or users either directly connected or through a piece of apparatus known as a "meet me bridge" over voice grade telephone lines. Each user has a programmed personal computer which controls a programmable or "smart" modem, cassette recorder/player, and speakerphone. A protocol is implemented by the software, i.e. the computer program, in each of the computers which puts its respective modem in a listening mode to monitor the phone line at all times. The computer is further programmed and includes a memory for storing and transmitting graphics presently on hand to other user(s) via the modem during a teleconference or alternatively receive graphics from another user, or it can switch to an external graphics program to make new or modify existing graphic images. However, one is unable to speak on the telephone line while a graphic is being transmitted during a teleconference due to the fact that voice alternates with graphic transmissions.
摘要翻译：在多个方或用户之间的音频电话会议系统，其直接连接或通过语音等级电话线上称为“满足我桥”的一种装置。每个用户都具有编程的个人计算机，其控制可编程或“智能”调制解调器，盒式录音机/播放器和扬声器。每个计算机中的软件（即，计算机程序）实现协议，该计算机使其各自的调制解调器处于监听模式，以始终监视电话线。计算机被进一步编程，并且包括用于在电话会议期间经由调制解调器存储和发送当前手持其他用户的图形的存储器，或者替代地从另一用户接收图形，或者可以切换到外部图形程序以制作新的或修改现有的图形图像。然而，由于语音与图形传输交替的事实，在电话会议期间正在发送图形时，无法在电话线上说话。

33. 发明授权

US4694351A Picture signal processing apparatus 失效
标题翻译：图像信号处理装置
公开(公告)号：US4694351A
公开(公告)日：1987-09-15
申请号：US863243
申请日：1986-05-14
申请人： Koozoo Nakamura , Nagaharu Hamada , Masaharu Tadauchi , Yasuyuki Kozima , Noboru Suemori , Takamitu Kouno
发明人： Koozoo Nakamura , Nagaharu Hamada , Masaharu Tadauchi , Yasuyuki Kozima , Noboru Suemori , Takamitu Kouno
IPC分类号： H04N1/411 , H04N1/387 , H04N1/41 , H04N1/417 , H04M1/00
CPC分类号： H04N1/417
摘要： A picture signal processing apparatus comprises a signal processing means for performing signal processing such as picture element density conversion of picture signals, a first memory means for storing temporarily picture signals as object of the signal processing, a first signal path through which signals are received or transmitted between the signal processing means and the first memory means, an encoding means for performing encoding processing, a second memory means for storing temporarily picture signals as object of the encoding processing, a second signal path through which signals are received or transmitted between the encoding means and the second memory means, a control means for controlling the signal processing means and the encoding means, and a third signal path through which signals are received or transmitted between the signal processing means and the encoding means, thereby signal processing and encoding processing can be performed concurrently and high speed processing is realized.
摘要翻译：图像信号处理装置包括用于执行诸如图像信号的像素密度转换的信号处理的信号处理装置，用于存储临时图像信号作为信号处理对象的第一存储装置，被接收信号的第一信号路径或在信号处理装置和第一存储装置之间发送的编码装置，用于执行编码处理的编码装置，用于存储作为编码处理的对象的临时图像信号的第二存储装置，在编码之间接收或发送信号的第二信号路径装置和第二存储装置，用于控制信号处理装置和编码装置的控制装置，以及在信号处理装置和编码装置之间通过其接收或发送信号的第三信号路径，由此信号处理和编码处理可以并行执行高速程序 ssing被实现。

34. 发明授权

US4672459A Communication terminal apparatus with data format conversion capability 失效
标题翻译：具有数据格式转换能力的通信终端设备
公开(公告)号：US4672459A
公开(公告)日：1987-06-09
申请号：US881471
申请日：1986-07-07
申请人： Shozo Kudo
发明人： Shozo Kudo
IPC分类号： H04L29/12 , H04N1/333 , H04N1/387 , H04N1/411 , H04N1/32 , H04N1/40
CPC分类号： H04N1/33338 , H04N1/33307 , H04N1/3871 , Y10S379/908
摘要： A facsimile machine for use as a terminal in a communication network includes a scanner for optically reading an original document to produce graphic information and a keyboard for producing character information and control information as operated by an operator. The graphic and character information thus inputted is then combined to form mixture information which is transmitted to a receiver terminal as long as the receiver terminal is capable of receiving such mixture information. If the receiver terminal has been found to be not equipped to receive such mixture information, the present facsimile machine automatically converts the character portion of the mixture information to graphic information thereby making all the information to be graphic prior to transmission to the receiver terminal.
摘要翻译：在通信网络中用作终端的传真机包括用于光学读取原始文档以产生图形信息的扫描仪和用于产生由操作员操作的字符信息和控制信息的键盘。然后，如此输入的图形和字符信息被组合以形成发送到接收机终端的混合信息，只要接收机终端能够接收这样的混合信息即可。如果发现接收机终端没有接收到这样的混合信息，则本传真机将混合信息的字符部分自动转换为图形信息，从而使所有信息在传送到接收机终端之前是图形的。

35. 发明授权

US4603431A Method and apparatus for vectorizing documents and symbol recognition 失效
标题翻译：用于矢量化文档和符号识别的方法和装置
公开(公告)号：US4603431A
公开(公告)日：1986-07-29
申请号：US475037
申请日：1983-03-14
申请人： David N. Grover , Eugene A. Kleca , Curtis A. Lipkie
发明人： David N. Grover , Eugene A. Kleca , Curtis A. Lipkie
IPC分类号： G06K9/46 , G06K9/36 , G06K9/80 , G06T3/00 , G06T9/20 , H04N1/411 , H04N1/417 , G06K9/50
CPC分类号： H04N1/417 , G06K9/80 , H04N1/4115
摘要： An apparatus codes a scanned document locally representing each graphic element within a prescribed measure of accuracy by a trapezoidal approximation. The invention also includes a method for similarly coding a scanned document. The apparatus determines whether each scanned run is indicative of a Y- or .lambda.-junction, the termination of an old, or the commencement of a new graphic element, and whether a new linear approximation is necessary. The invention in a preferred embodiment recognizes symbols by determining the center of mass and maximum extremity of a symbol candidate, and comparing it to a reference library after normalizing with respect to scale, orientation and center of mass. In a preferred embodiment, an adaptive threshold parameter governs coding so as to reject noise and optimize a pair of linear predicters in a small number of scans. In a further preferred embodiment the accuracy of the linear predicters is refined so that the error is exponentially bounded.
摘要翻译：设备通过梯形近似，在规定的精度测量范围内对扫描的文件在本地表示每个图形元素进行编码。本发明还包括用于对扫描文档进行类似编码的方法。该装置确定每个扫描的运行是否指示Y或λ连接，旧的终止或新的图形元素的开始，以及是否需要新的线性近似。在优选实施例中的本发明通过确定符号候选的质心和最大极限来识别符号，并且在相对于标度，取向和质心标准化之后将其与参考文库进行比较。在优选实施例中，自适应阈值参数控制编码以便拒绝噪声并且在少量扫描中优化一对线性预测器。在另一个优选实施例中，线性预测器的精度被改进，使得误差是指数方式的。

36. 发明授权

US4542412A Method for compressing character or pictorial image data 失效
标题翻译：压缩字符或图形图像数据的方法
公开(公告)号：US4542412A
公开(公告)日：1985-09-17
申请号：US463111
申请日：1983-02-01
申请人： Shigeru Fuse , Masatake Takashima , Shinichiro Fukuda , Hiroyuki Shibata
发明人： Shigeru Fuse , Masatake Takashima , Shinichiro Fukuda , Hiroyuki Shibata
IPC分类号： G06K9/48 , G06T9/00 , H04N1/411 , H04M7/12
CPC分类号： G06T9/001 , G06K9/48 , H04N1/411 , G06K2209/01
摘要： A method for compressing character or pictorial image data which contemplates to compress a quantity of data by means of a method for establishing sampling points and a method for establishing blocks as well as storing information for specifying outlines of a character in the case where the outlines of character, pictorial image or the like are approximated with sets of functional curves or straight lines to effect data compression.
摘要翻译：一种用于压缩字符或图形图像数据的方法，其意图通过用于建立采样点的方法来压缩数据量，以及用于建立块的方法以及存储用于指定字符轮廓的信息的情况下的字符或图形图像数据的方法，用一组功能曲线或直线来逼近数字压缩，字符，图形图像等。

37. 发明授权

US4369463A Gray scale image data compression with code words a function of image history 失效
标题翻译：灰度图像数据压缩与码字是图像历史的功能
公开(公告)号：US4369463A
公开(公告)日：1983-01-18
申请号：US270662
申请日：1981-06-04
申请人： Dimitris Anastassiou , Joan L. Mitchell
发明人： Dimitris Anastassiou , Joan L. Mitchell
IPC分类号： H04N1/411 , G06T9/00 , H03M7/40 , H04N1/41 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/12 , H03K13/22
CPC分类号： H03M7/4006 , H04N19/124 , H04N19/50 , H04N19/13 , H04N19/60 , H04N19/91
摘要： The present invention relates to a method and apparatus for compacting gray-scale image data which maintains extremely good picture quality and can result in typical images in a compression ratio of 5 to 1 and even better if a final step of arithmetic coding is used. The method is a special application of adaptive differential pulse code modulation (DPCM) which utilizes a prediction of smoothness surrounding a current pel to determine variable length codes to convey the quantized error. Thus, a continuously adaptive variable length code is produced which may be accurately decoded without using any further marker (code indicator) bits. For each pel and "error bit" is generated to indicate to the decoder if the predicted quantization range is adequate. These eroror bits can be further significantly compressed.This method permits the use of a "zero bit" per pel mode for the data transmission (1 "error bit" per pel actually transmitted) and provides for the automatic detection of the particular variable length compression code utilized for transmitting the quantized error (E.sub.Y) for a particular pel. Utilizing the concepts of the present invention the inventors have obtained compression rates of approximately 1.5 bits per pel that produce a gray scale image at the decoding end of such a data transmission or storage system which has excellent quality (equal to 5 bit DPCM).By adding the concept of arithmetic coding to the previously set forth method, due to the nature of the statistical distribution of said special purpose error bit patterns, a compressed data set of less than 1 bit per pel has been achieved. This was produced from an original 8 bit per pel gray scale image.
摘要翻译：本发明涉及一种用于压缩灰度图像数据的方法和装置，其保持非常好的图像质量，并且如果使用算术编码的最后步骤，则可以以5比1的压缩比导致典型图像，甚至更好。该方法是自适应差分脉冲编码调制（DPCM）的特殊应用，其利用对当前像素周围的平滑度的预测来确定可变长度码来传达量化误差。因此，产生连续自适应可变长度码，其可以被准确地解码，而不使用任何进一步的标记（码指示符）比特。对于每个像素，并且生成“错误位”以向解码器指示预测量化范围是否足够。这些错误位可以被进一步显着压缩。该方法允许使用每像素“零比特”进行数据传输（实际发送每像素1个“误差比特”），并且提供用于发送量化误差的特定可变长度压缩码的自动检测（EY ）为特定的像素。利用本发明的概念，本发明人获得了在具有优良质量（等于5位DPCM）的这种数据传输或存储系统的解码端产生灰度图像的大约每像素大约1.5位的压缩率。通过将算术编码的概念添加到先前提出的方法中，由于所述专用误差位模式的统计分布的性质，已经实现了每像素小于1位的压缩数据集。这是从原始的8位每像素灰度图像生成的。

38. 发明授权

US4327381A Blank jumping teleprinting method and apparatus 失效
标题翻译：空白跳线电报方法和装置
公开(公告)号：US4327381A
公开(公告)日：1982-04-27
申请号：US156108
申请日：1980-06-03
申请人： Jean-Claude Amicel
发明人： Jean-Claude Amicel
IPC分类号： G06F3/12 , B41J5/30 , H04L17/00 , H04N1/17 , H04N1/411 , H04N1/40
CPC分类号： H04N1/17
摘要： Blank jumping teleprinting method in which a document is read line by line, each line being read point by point, each reading signal corresponding to each point is stored and groups of P signals are transmitted by multiplexing to a point by point writing means organized in groups of P points and in which the white areas of a line are detected, the signals corresponding to these blank areas being jumped during transmission, wherein a line is read once and in a memory with P cells are stored the reading signals belonging to a first group of P consecutive signals containing at least one non-zero signal, then the P cells of the memory are linked with the group of P points of the writing means corresponding to said first group and these operations are repeated for a first line for the same number of times as the latter gives groups of P reading signals incorporating at least one non-zero signal, while passing from one group of P signals to the next on each new reading of the same line until the line is at an end.The invention also relates to the blank jumping teleprinter for performing the aforementioned method.
摘要翻译：空白跳转电报方式，其中文件被逐行读取，每行被逐点读取，每个读取信号对应于每个点被存储，并且P组信号通过多路复用发送到逐点组织的逐点写入装置的P点，并且其中检测到一行的白色区域，在传输期间与这些空白区域相对应的信号被跳跃，其中一行被读取一次，并且在具有P个单元的存储器中存储属于第一组的读取信号的包含至少一个非零信号的P个连续信号，则存储器的P个单元与对应于所述第一组的写入装置的P个点组相连，并且对于相同数量的第一行重复这些操作的时间，因为后者给出包含至少一个非零信号的P组读取信号，同时在同一行的每个新读数上从一组P信号传递到下一组，直到这条线已经结束了。本发明还涉及用于执行上述方法的空白跳转电传打印机。

39. 发明授权

US4291339A Facsimile transceiver 失效
标题翻译：传真收发器
公开(公告)号：US4291339A
公开(公告)日：1981-09-22
申请号：US906013
申请日：1978-05-15
申请人： Mutsuo Ogawa , Noboru Murayama , Akira Konishi , Norisada Takeuchi
发明人： Mutsuo Ogawa , Noboru Murayama , Akira Konishi , Norisada Takeuchi
IPC分类号： H04N1/40 , H04N1/411 , H04N7/12
CPC分类号： H04N1/40068 , H04N1/411
摘要： A scanner scans an original document in two orthogonal directions and produces binary data signals representing the document. An extractor combines each two scan lines into one scan line by taking the logical sum of the data signals in corresponding positions in the two original scan lines. Each second data signal is removed. The data signals in even positions in one line are removed and the data signals in odd positions in the succeeding line are removed, thereby removing the data signals in a zig-zag manner. The data signals so processed are subjected to run-length encoding. In a receiver, the data signals are run-length decoded and fed into an interpolator which senses the data signals and inserts data signals into the spaces from which data signals were removed in accordance with a predetermined logical function. The interpolator controls a printer to print each scan lines twice to reproduce the original document.
摘要翻译：扫描仪在两个正交方向上扫描原始文档，并产生表示文档的二进制数据信号。提取器通过在两个原始扫描线中的相应位置取数据信号的逻辑和来将每条扫描线组合成一条扫描线。每个第二数据信号被去除。去除一行中偶数位置的数据信号，去除后续行中奇数位置的数据信号，从而以锯齿形的方式去除数据信号。如此处理的数据信号进行游程长度编码。在接收机中，数据信号被游程长度解码，并被馈送到内插器中，该内插器检测数据信号，并根据预定的逻辑功能将数据信号插入数据信号被去除的空间中。内插器控制打印机打印每条扫描线两次以再现原始文档。

40. 发明授权

US4290084A Method and means for preserving original continuity/discontinuity among same colored pel clusters upon array compression 失效
标题翻译：用于在阵列压缩时保持相同彩色像素簇之间的原始连续性/不连续性的方法和装置
公开(公告)号：US4290084A
公开(公告)日：1981-09-15
申请号：US077698
申请日：1979-09-21
申请人： John F. Minshull , Pavel Brazdil
发明人： John F. Minshull , Pavel Brazdil
IPC分类号： H04N1/393 , G06F3/153 , G06K9/54 , G06T3/00 , G06T3/40 , G06T5/30 , H04N1/411 , H04N1/00
CPC分类号： G06T3/4023 , G06K9/54 , G06T3/403 , G06T5/30 , H04N1/411 , G06K2209/01
摘要： Data manipulation apparatus is described for converting raster-scanned data received, for example, from a scanner 2 at a first picture element (pel) resolution to a second lower pel resolution for display, for example, on a CRT terminal 4. The apparatus includes a scale-changing means 8 which functions to replace selected subgroups of pels in the input image by single pels at its output. The significance of each single pel reflects the presence or absence of a pel representing part of an image object in the associated subgroup of pels. The number of pels in the selected subgroups are determined by the degree of compression required to convert to the lower pel resolution. Prior to scale change, the apparatus functions to modify the input data in order to minimize merging of adjacent image objects as a result of scale change and thereby improve the legibility of the output image at the lower resolution. The scanned data is first supplied to a data sensitive thinner 5 which detects narrow gaps between adjacent objects and selectively detects image object edge pels in order to widen the gap. The selectively thinned scanned data is then supplied to a further thinner 6 which removes excess image pels from selected edges of the image objects. The data from thinner 6 is then supplied to a data sensitive merge inhibit unit 7 which moves selected image object pels from a subgroup in which merging as a result of scale change will occur to an adjacent subgroup where merging will not occur. Removal of a pel by the selective thinner 5, or by the thinner 6 or movement of a pel by unit 7 is inhibited if to do so would result in fragmentation of the associated image object.
摘要翻译：描述了数据处理装置，用于将例如从第一像素（像素）分辨率的扫描仪2接收的光栅扫描数据转换为例如CRT终端4显示的第二较低像素分辨率。该装置包括缩放变化装置8，其功能是通过其输出处的单个像素来替换输入图像中的选定的像素组。每个单个像素的意义反映了表示在相关联的子组中的图像对象的一部分的像素的存在或不存在。所选子组中的像素数由转换为较低像素分辨率所需的压缩程度决定。在缩放比例变化之前，该装置用于修改输入数据，以便最小化作为缩放变化的结果的相邻图像对象的合并，从而提高输出图像在较低分辨率下的易读性。扫描数据首先被提供给数据敏感薄膜5，其检测相邻对象之间的窄间隙并选择性地检测图像对象边缘像素以扩大间隙。然后将选择性变薄的扫描数据提供给更薄的6，其从图像对象的选定边缘去除多余的图像像素。然后将来自较薄6的数据提供给数据敏感合并禁止单元7，该单元7将所选择的图像对象像素从其中将发生缩放改变的结果的合并到将不会发生合并的相邻子组发生。如果这样做会导致相关图像对象的碎裂，则可以抑制由选择性稀释剂5去除像素，或者通过单元7的较薄的6或像素的移动去除像素。

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