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公开(公告)号：US5405474A
公开(公告)日：1995-04-11
申请号：US77793
申请日：1993-06-15
CPC分类号： G02B6/2835 , G02B6/2856 , Y10T156/1052 , Y10T156/108
摘要： A fiber optic coupler is formed by inserting a plurality of optical fibers into the longitudinal bore of a glass tube so that at least a portion of each fiber extends from at least one end of the tube. The midregion of the tube is collapsed onto the fibers, uncollapsed bore portions remaining at the tube end regions. Each bore portion is connected to the tube end surface by a funnel that facilitates the fiber insertion step. The central portion of the midregion is stretched to reduce the diameter thereof. In a first embodiment, glue is applied to the funnel. Before the glue is cured, a sufficient period of time is allowed to elapse to permit said glue to flow by capillary action between the fibers and the adjacent portion of the wall of the bore portion. The glue flows at least 3 mm into the bore portion beyond the bottom of the funnel. The glue that flows by capillary action fails to completely surround the fibers with glue. The glue is then cured. In a second embodiment, a hollow filament is inserted into the uncollapsed bore portion and a vacuum is applied to the filament. Glue, which is applied to the funnel, is drawn into the uncollapsed bore portion due to the evacuated condition thereof, thus filling the uncollapsed bore portion to the desired level.
摘要翻译： 通过将多根光纤插入玻璃管的纵向孔中而形成光纤耦合器，使得每条光纤的至少一部分从管的至少一端延伸。 管的中间区域被折叠到纤维上，未封闭的孔部分保留在管端区域。 每个孔部分通过有助于纤维插入步骤的漏斗连接到管端表面。 中间区域的中心部分被拉伸以减小直径。 在第一实施例中，将胶水施加到漏斗。 在胶固化之前，允许经过足够的时间以允许所述胶通过毛细作用在纤维与孔部分的壁的相邻部分之间流动。 胶水至少3mm流入漏斗底部以上的孔部分。 通过毛细作用流动的胶水不能完全用胶水包围纤维。 然后将胶固化。 在第二实施例中，将中空细丝插入到未收缩的孔部分中，并将真空施加到细丝上。 应用于漏斗的胶水由于其抽空状态而被吸入未收缩的孔部分，从而将未收缩的孔部分填充到所需的水平。
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公开(公告)号：US5146519A
公开(公告)日：1992-09-08
申请号：US573828
申请日：1990-08-28
申请人： William J. Miller , Alan J. Morrow
发明人： William J. Miller , Alan J. Morrow
CPC分类号： G02B6/283 , G02B6/2835
摘要： An apparatus for selectively transmitting input optical signals carried on input optical fibers to output optical fibers. A three refractive index tapered wave guide structure is bent and maintained in the bent state. This structure is, thereafter, rotated in the bent state. The coupling characteristics are tunable based on the degree of rotation.
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公开(公告)号：US5016557A
公开(公告)日：1991-05-21
申请号：US446656
申请日：1989-12-06
申请人： William J. Miller
发明人： William J. Miller
摘要： A modular sliding-seat rowing shell that is relatively inexpensive and that can be constructed to provide any of three rowing configurations. The shell includes a bow section, a stern section and a center section. The bow and stern sections have the same number (e.g., 2) of rowing stations, and the center section has twice as many (e.g., 4) rowing stations. At each of the rowing stations in all of the sections the beam of the shell is the same (e.g. 22 inches), and the sections are designed and constructed such that the bow section and the stern section may be connected directly to each other to form a shell having one conventional rowing configuration (e.g., a four-oared shell), and the central section can be connected between the bow and stern sections to form a shell having a second conventional rowing configuration (e.g., an eight-oared shell). Two eight-oared configurations may be joined by two jokes to form a shell having a third conventional rowing configuration (e.g., a sixteen-oared training shell).
摘要翻译： 一种模块化的滑动座椅划船外壳，其相对便宜并且可被构造成提供三种划艇配置中的任何一种。 壳体包括弓形部分，船尾部分和中心部分。 弓和船尾部分具有相同的数量（例如2）的划船站，并且中心部分具有两倍的（例如，4个）划船站。 在所有部分的每个划船站处，船的梁是相同的（例如22英寸），并且这些部分被设计和构造成使得弓形部分和船尾段可以彼此直接连接以形成 具有一个常规划船构造的壳体（例如，四口壳体），并且中心部分可以连接在弓形和船尾部分之间以形成具有第二传统划船构型（例如，八口壳）的壳体。 两个八口配置可以由两个笑话连接以形成具有第三传统划船配置（例如十六点训练外壳）的外壳。
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公开(公告)号：US4902324A
公开(公告)日：1990-02-20
申请号：US223423
申请日：1988-07-25
CPC分类号： G02B6/2835 , C03B37/15
摘要： A fiber optic coupler is formed by providing a glass tube having a longitudinal aperture extending therethrough. Glass optical fibers, each having a core, cladding and coatng are disposed within the longitudinal aperture, the fibers extending beyond each end thereof. The coating is removed from that portion of the fibers in the midregion of the tube but remains on that portion of the fibers extending into the ends of the apertures. The aperture is formed by a plurality of flattened walls, the dimensions and orientations of which are such that the cross-section of the aperture in the central region of the tube is symmetrical with respect to a plane passing through the longitudinal axis of the tube. At any cross-section of the aperture that is adjacent the coated regions of the fibers, each fiber coating contacts two walls of the aperture. The fibers are held taut to effect a tension therein, and the midregion of the tube is heated, collapsed about the fibers, and drawn to reduce the diameter thereof over a predetermined length.
摘要翻译： 通过提供具有延伸穿过其中的纵向孔的玻璃管形成光纤耦合器。 每个具有芯，包层和涂层的玻璃光纤设置在纵向孔内，纤维延伸超过其每端。 从管的中间区域的纤维的该部分去除涂层，但是保留在延伸到孔的端部的纤维的那部分上。 孔由多个扁平的壁形成，其尺寸和取向使得管的中心区域中的孔的横截面相对于穿过管的纵向轴线的平面对称。 在与纤维的涂覆区域相邻的孔的任何横截面处，每个纤维涂层接触孔的两个壁。 纤维被拉紧以在其中产生张力，并且管的中间区域被加热，围绕纤维折叠，并被拉伸以将其直径减小预定长度。
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公开(公告)号：US4652703A
公开(公告)日：1987-03-24
申请号：US471137
申请日：1983-03-01
IPC分类号： H04B3/20
CPC分类号： H04B3/20
摘要： A digital voice communication apparatus having improved echo suppression includes a transmission gain detection circuit for detecting a near talker signal and a receiver gain detection circuit for detecting a far talker signal. An echo detecting circuit detects which of the near talker and far talker signals has a lesser value and suppresses the gain of the one detected to have the lesser value. A far talker suppressing circuit detects whether the most recent peak gain in this near talker signal is greater than a threshold and is greater than the gain of the far talker signal. If this condition exists the far talker signal is suppressed. A near talker signal suppressing circuit detects whether the most recent gain of the far talker signal is greater than a threshold and is greater than the gain of the near talker signal. If so, the gain of the near talker signal is suppressed.
摘要翻译： 具有改善的回波抑制的数字语音通信装置包括用于检测近距离讲话者信号的发送增益检测电路和用于检测远扬声器信号的接收机增益检测电路。 回波检测电路检测近旁话者和远谈话者信号中的哪一个具有较小的值，并且抑制检测到的那些增益具有较小的值。 远扬声器抑制电路检测该近距离讲话者信号中最近的峰值增益是否大于阈值，并且大于远扬声器信号的增益。 如果这种情况存在，则说话人信号被抑制。 近距离讲话者信号抑制电路检测远扬声器信号的最近的增益是否大于阈值，并且大于近旁话者信号的增益。 如果是这样，则抑制近旁话者信号的增益。
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36.发明授权Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data 失效具有数字控制AGC电路的数字语音压缩和用于在压缩数据中包括真实增益的装置
公开(公告)号：US4611342A
公开(公告)日：1986-09-09
申请号：US471139
申请日：1983-03-01
摘要： An apparatus for use in transmitting compressed digital voice data includes an analyzer for compressing digitized voice data according to an algorithm which produces a root mean square of the voice data. An analog to digital converter is used to convert analog voice signals to digital data as an input to the analyzer. An AGC circuit controls to analog voice signal to keep it within predetermined limits for digitization, with the AGC setting being determined by the root mean square of the digitized data. The digitized data includes data representative of the root mean square adjusted by the inverse of the change induced by the AGC. A speech synthesizer expands the digitized data at a remote location to convert it back to analog speech signals.
摘要翻译： 用于发送压缩数字语音数据的装置包括：分析器，用于根据产生语音数据均方根的算法对数字化语音数据进行压缩。 模拟数字转换器用于将模拟语音信号转换为数字数据作为分析仪的输入。 AGC电路控制模拟语音信号，使其保持在数字化的预定限制内，AGC设置由数字化数据的均方根决定。 数字化数据包括表示由AGC引起的变化的倒数所调整的均方根的数据。 语音合成器将远程位置的数字化数据扩展为模拟语音信号。
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公开(公告)号：US4609788A
公开(公告)日：1986-09-02
申请号：US471138
申请日：1983-03-01
申请人： William J. Miller , Chun C. Lu
发明人： William J. Miller , Chun C. Lu
IPC分类号： H04B3/20
CPC分类号： H04B3/20
摘要： A digital communication apparatus with improved echo suppression includes a circuit for detecting the gain of a far talker signal and a circuit for detecting the gain of a near talker signal. These gains are compared and echo suppression is accomplished by suppressing the lesser of the two gains.
摘要翻译： 具有改善的回波抑制的数字通信装置包括用于检测远扬声器信号的增益的电路和用于检测近旁话者信号的增益的电路。 比较这些增益，并通过抑制两个增益中较小者来实现回波抑制。
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公开(公告)号：US4382076A
公开(公告)日：1983-05-03
申请号：US383668
申请日：1982-06-01
IPC分类号： G01N33/576 , G01N33/48 , G01N33/54 , C12Q1/70
CPC分类号： G01N33/5768 , Y10S435/961 , Y10S435/962 , Y10S436/804 , Y10S436/82
摘要： A diagnostic reagent for hepatitis A antibody is prepared by adhering hepatitis A antibody to a surface by non-specific adsorption followed by specific coupling of hepatitis A antigen to the antibody. This reagent is useful in an in vitro assay for hepatitis A antibody.
摘要翻译： 通过非特异性吸附将甲型肝炎抗体粘附到表面，然后将甲型肝炎抗原与抗体特异性偶联来制备用于甲型肝炎抗体的诊断试剂。 该试剂可用于甲型肝炎抗体的体外测定。
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39.发明授权
公开(公告)号：US4329424A
公开(公告)日：1982-05-11
申请号：US881299
申请日：1978-02-27
CPC分类号： C12Q1/70
摘要： Semi-automated assays for viral infectivity and an assay for serum neutralizing antibody content are based on staining the cells and macroscopic reading of the cytopathic effect.
摘要翻译： 用于病毒感染性的半自动化测定和血清中和抗体含量的测定是基于细胞的染色和细胞病变效应的宏观读数。
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公开(公告)号：US4322576A
公开(公告)日：1982-03-30
申请号：US108039
申请日：1979-12-28
申请人： William J. Miller
发明人： William J. Miller
CPC分类号： D21H5/0002 , H04L1/0083 , H04L9/0625 , H04L9/0637 , H04L9/12 , H04L2209/60
摘要： Communication over data links using binary synchronous protocol that is to be made secure according to the Federal data encryption standard (DES) is enhanced by utilizing an encrypted message format wherein the initialization vector for the DES algorithm is at the trailing end of the message. Additional information or control words may also be strung at the trailing end of the encrypted message format without causing throughput loss while enhancing the security and flexibility of the encrypted message in both point-to-point and multipoint systems.
摘要翻译： 使用根据联邦数据加密标准（DES）进行安全的二进制同步协议的数据链路的通信通过利用加密的消息格式得到增强，其中DES算法的初始化向量位于消息的后端。 附加信息或控制字也可以在加密消息格式的尾端被串起，而不会导致吞吐量损失，同时增强点对点和多点系统中的加密消息的安全性和灵活性。
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