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    Dual mode facsimile coding system and method
    1.
    发明授权
    Dual mode facsimile coding system and method 失效
    双模传真编码系统及方法

    公开(公告)号：US4410916A

    公开(公告)日：1983-10-18

    申请号：US281721

    申请日：1981-07-09

    申请人： William K. Pratt ,  Ronald S. Bader ,  Wen-Hsiung Chen ,  Lyle V. Rennick ,  Robert H. Wallis

    发明人： William K. Pratt ,  Ronald S. Bader ,  Wen-Hsiung Chen ,  Lyle V. Rennick ,  Robert H. Wallis

    IPC分类号： G06K9/34 ,  G06K9/50 ,  G06T9/00 ,  H04N1/411 ,  H04N1/40

    CPC分类号： G06K9/342 ,  G06K9/50 ,  G06T9/005 ,  H04N1/4115 ,  G06K2209/01

    摘要： A dual mode facsimile data compression technique which possesses the advantage of symbol recognition and extended run-length coding methods. In operation, a symbol blocking operator isolates digital raster data representing valid alphanumeric characters and document symbols. The first symbol encoungered is placed in a memory or library and as each new symbol is detected, it is compared with each entry of the library. If the comparison is within a predetermined tolerance, a library identification code representing the symbol is generated and transmitted along with the symbol location coordinates. Otherwise, the new symbol is placed in the library and its digital pattern and location is transmitted. A scoring system determines which elements of the library are to be replaced by new prototypes once the library is filled. Non-isolated symbols are coded by a two-dimensional run-length coding method for transmission.

    摘要翻译： 一种双模式传真数据压缩技术，具有符号识别和扩展游程编码方法的优点。 在操作中，符号阻塞运算符隔离表示有效的字母数字字符和文档符号的数字栅格数据。 遇到的第一个符号被放置在存储器或库中，并且当检测到每个新符号时，将其与库的每个条目进行比较。 如果比较在预定的公差之内，则生成表示该符号的库标识码，并与符号位置坐标一起发送。 否则，新符号被放置在库中，并且其数字模式和位置​​被传送。 一旦记录库被填充，评分系统确定库的哪些元素将被新的原型代替。 非隔离符号由用于传输的二维游​​程编码方法编码。

    High speed character matcher and method
    2.
    发明授权
    High speed character matcher and method 失效
    高速字符匹配器和方法

    公开(公告)号：US4288782A

    公开(公告)日：1981-09-08

    申请号：US69258

    申请日：1979-08-24

    申请人： Ronald S. Bader ,  Lyle V. Rennick ,  Robert H. Wallis

    发明人： Ronald S. Bader ,  Lyle V. Rennick ,  Robert H. Wallis

    IPC分类号： G06K9/64 ,  G06T9/00 ,  G06K9/68

    CPC分类号： G06K9/6202 ,  G06T9/005

    摘要： A high speed character matcher and method for measuring the similarity between a pair of binary patterns representing two-dimensional images. The patterns are compared on a bit by bit basis and when a discrepancy is detected, it is assigned an error penalty which is based on the two-dimensional context in which the error occurred. The types of error context which are typical in the comparison of distorted but otherwise similar characters are given a lower error than those typically encountered in the comparison of dissimilar characters.

    摘要翻译： 一种用于测量代表二维图像的一对二进制图案之间的相似度的高速字符匹配器和方法。 模式被逐一比较，并且当检测到差异时，分配了基于发生错误的二维上下文的错误惩罚。 在比较失真但是相似的字符中典型的错误上下文的类型给出比在不同字符的比较中通常遇到的错误上下文的错误。

    Spring grounding clip for computer peripheral card
    3.
    发明授权
    Spring grounding clip for computer peripheral card 失效
    电脑周边卡的弹簧接地夹

    公开(公告)号：US5563450A

    公开(公告)日：1996-10-08

    申请号：US379825

    申请日：1995-01-27

    申请人： Ronald S. Bader ,  Michael W. Patterson

    发明人： Ronald S. Bader ,  Michael W. Patterson

    IPC分类号： H01R13/648 ,  H05K5/00 ,  H05K5/02 ,  H05K9/00 ,  H01L23/02 ,  H01L23/34

    CPC分类号： H05K9/0039 ,  H01R13/6485 ,  H05K5/0269 ,  H01R12/707 ,  H01R12/722 ,  H01R23/70

    摘要： A peripheral card includes a two-part metal cover mounting a printed wiring board on a U-shaped plastic frame. The wiring board is spaced from inside surfaces of the cover preferably by a pair spring clips mountable on side edges of the wiring board, each clip having an apertured intermediate bight portion overlying and in aperture burr scraped contact with ground contact pads on the board. Barbed-end spring fingers extend integrally from the bight portion preferably toward the board side edge to which it affixed and into scraped contact with respective ones of the metal cover parts as the metal cover parts are assembled together. The clips hold the board from movement in the cover and electrically ground any static electrical charges on the metal cover parts to the contact pads and to a ground socket in the frame, and electrically ground the metal cover parts to provide electromagnetic shielding of the electrical circuitry on the wiring board.

    摘要翻译： 外围卡包括两个部分的金属盖，将印刷电路板安装在U形塑料框架上。 布线板优选地由安装在布线板的侧边缘上的一对弹簧夹与盖的内表面间隔开，每个夹具具有一个有孔的中间弯曲部分，并且与该板上的接地触点焊接在一起。 随着金属盖部件组装在一起，棘爪部分的弹簧指状件优选地从弯曲部分一体地延伸到其固定的板侧边缘并与相应的金属盖部分刮擦接触。 夹子将电路板保持在盖子的运动中，并将金属盖部件上的任何静电电荷电接地到框架中的接触垫和接地插座，并且电接地金属盖部件以提供电路的电磁屏蔽 在接线板上。