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    • 22. 发明授权
    • Apparatus for monitoring the state of a liquid-crystal polarization
    • 用于监测液晶极化状态的装置
    • US5847831A
    • 1998-12-08
    • US654979
    • 1996-05-29
    • W. John Tomlinson, IIIRichard E. Wagner
    • W. John Tomlinson, IIIRichard E. Wagner
    • G02F1/01G01J4/04G02F1/31H04B10/04H04B10/06H04B10/08H04B10/142H04B10/152G01J4/00
    • G02F1/31G01J4/04
    • A liquid crystal (LC) polarization modulator segment (216, 218) includes a monitoring device (220). The monitoring device (220) includes a polarized reference light source (222), located at an LC polarization monitor input, and polarized light detector (224), located at an LC polarization monitor output. If the reference light having the correct polarization is received at the detector (224), an indication of the switch state is provided. Alternatively, if the polarized detector (224) includes orthogonal polarizers (230A, 230B) provided for two separate light detectors (232A, 232B) both the desired polarization, and the opposite polarization, may be monitored to determine whether a failure exists in the segment. If the reference light is detected having the opposite polarization (instead of or in addition to the correct polarization) or no light is detected, the segment (or the monitor) is not operating correctly.
    • 液晶(LC)偏振调制器段(216,218)包括监视装置(220)。 监视装置(220)包括位于LC偏振监视器输入处的偏振参考光源(222)和位于LC偏振监视器输出处的偏振光检测器(224)。 如果在检测器(224)处接收到具有正确极化的参考光,则提供开关状态的指示。 或者,如果偏振检测器(224)包括为两个单独的光检测器(232A,232B)提供的正交偏振器(230A,230B),则可以监视期望的极化和相反极化,以确定是否存在该段中的故障 。 如果检测到参考光具有相反的偏振(代替或除正确的偏振之外)或没有检测到光,则该段(或监视器)不能正确地操作。
    • 25. 发明授权
    • Two-fiber interconnected ring architecture
    • 双纤互联环架构
    • US06616349B1
    • 2003-09-09
    • US09467748
    • 1999-12-20
    • Ming-Jun LiMark J. SoulliereRichard E. Wagner
    • Ming-Jun LiMark J. SoulliereRichard E. Wagner
    • H04B1000
    • H04J14/0294H04J14/0227H04J14/0241H04J14/0283H04J14/0286
    • A two-fiber ring architecture capable of carrying multiple wavelength channels and allowing client self-healing of single point failures. The ring architecture includes a two-fiber optical ring carrying at least one wavelength channel, wherein the wavelength channel has working traffic and protection traffic. The optical ring can include a single ring, two interconnected rings, or multiple interconnected rings. Specifically, the ring architecture includes a first client networking element connected to the optical ring by a first pair of 2×2 add drop matrices and a second client networking element connected to the optical ring by a second pair of 2×2 add drop matrices. At least one interconnect node is also provided when more than one ring is used, wherein the interconnect node has a first 2×2 interconnect matrix and a second 2×2 interconnect matrix. The first 2×2 interconnect matrix routes the working traffic from the first client networking element to the second client networking element. Similarly, the second 2×2 interconnect matrix routes the protection traffic from the second client networking element to the first client networking element. The optical ring includes a first access ring, an inter-office (IOF) ring, and a second access ring. Access rings are connected to the IOF ring by the aforementioned interconnect nodes.
    • 双纤环结构,能承载多个波长通道,允许客户端单点故障自愈。 环形结构包括携带至少一个波长信道的双光纤光环,其中波长信道具有工作业务和保护业务。 光环可以包括单个环,两个互连环或多个互连环。 具体来说,环形架构包括通过第一对2x2加法矩阵连接到光环的第一客户端网络元件,以及通过第二对2x2加法矩阵连接到光环的第二客户网络元件。 当使用多于一个环时,还提供至少一个互连节点,其中互连节点具有第一2x2互连矩阵和第二2x2互连矩阵。 第一个2x2互连矩阵将工作流量从第一个客户端网络元件路由到第二个客户端网络元件。 类似地,第二2x2互连矩阵将保护流量从第二客户端网络元件路由到第一客户端网络元件。 光环包括第一接入环,办公室间(IOF)环和第二接入环。 接入环通过上述互连节点连接到IOF环。
    • 27. 发明授权
    • Optical switch with rotating, reflective, concave surface
    • 光开关具有旋转,反光,凹面
    • US4261638A
    • 1981-04-14
    • US947650
    • 1978-10-02
    • Richard E. Wagner
    • Richard E. Wagner
    • G02B6/35G02B5/14
    • G02B6/352G02B6/3558G02B6/3598
    • An optical switch is disclosed which relies only on a rotatable, reflective concave surface (3) to couple light between an optical source (1) and a preselected one of a plurality of optical receptors (6). The switch is bidirectional, i.e., the position of the source(s) and receptor(s) can be interchanged. Optical fibers may be used as the source(s) and receptor(s). The source, however, may also be chosen from such devices as lasers, light-emitting diodes or any other optical source known to those skilled in the art. Similarly, avalanche photodiodes or the like may be used as optical receptors.The above switch structure requiring only a reflective element is particularly suitable for switching light signals in telecommunication applications. The elimination of the need for a refractive element, such as a lens, provides a structure in which the output signal is independent of wavelength and index of refraction.
    • 公开了一种光学开关,其仅依赖于可旋转的反射凹面(3),以在光源(1)和多个光学接收器(6)中预选的光接收器之间耦合光。 开关是双向的,即源和接收器的位置可以互换。 光纤可以用作源和受体。 然而,源也可以选自诸如激光器,发光二极管或本领域技术人员已知的任何其它光源的器件。 类似地,雪崩光电二极管等可以用作光学受体。 上述仅需要反射元件的开关结构特别适用于在电信应用中切换光信号。 消除对诸如透镜的折射元件的需要提供了其中输出信号与波长和折射率无关的结构。
    • 28. 发明授权
    • Engineered structural wood products
    • 工程结构木制品
    • US6001452A
    • 1999-12-14
    • US708273
    • 1996-09-03
    • Kendall H. BassettAlkivadis G. DimakisEarl D. HasenwinkleJohn W. KernsJohn S. SelbyRichard E. WagnerRonald C. Wilderman
    • Kendall H. BassettAlkivadis G. DimakisEarl D. HasenwinkleJohn W. KernsJohn S. SelbyRichard E. WagnerRonald C. Wilderman
    • B27M1/00B27B1/00B27M3/00E04C3/14B32B5/12
    • B27M3/0053B27B1/00E04C3/14Y10T156/1061Y10T156/1075Y10T428/24058Y10T428/24066Y10T428/24091Y10T428/24099Y10T428/24132Y10T428/24942Y10T428/24992Y10T428/31989
    • The invention comprises engineered structural wood products particularly useful in critical applications such as joists, headers, and beams where longer lengths, greater widths, and higher and predictable stress ratings may be required. The invention is also directed to a method for making the wood products. Most logs by nature are radially anisotropic, having wood of higher density and stiffness in their outer portion adjacent the bark than is found in the inner portion. The logs are machined to segregate the denser, stiffer outer wood. A first generally rectangular component is formed from the less dense inner wood. Second generally rectangular components are formed from the stiffer outer wood. Second components are adhesively bonded to at least one edge of the first component, more usually to opposite edges. The stiffer wood is thus specifically placed where it will contribute most effectively to the properties of the product. The product is analogous to an I-beam in which the lower density first component serves as the web and the higher density second component as the flange portion The products can be handled in use in identical fashion to solid sawn lumber. They are characterized by much less variation in their stiffness than solid sawn visually or machine graded products and can be made in a wide range of width, thickness, and length.
    • 本发明包括在关键应用中特别有用的工程结构木制品,例如托梁,集管和梁,其中可能需要更长的长度,更大的宽度以及更高和可预测的应力等级。 本发明还涉及一种用于制造木制品的方法。 大多数原木本身是径向各向异性的,在其与外部相邻的外部部分中具有比内部部分中更高的密度和刚度的木材。 原木被机械加工以分离更密实,更硬的外部木材。 第一个大致矩形的部件由较不密集的内木制成。 第二个大致矩形的部件由较硬的外部木材形成。 第二组分粘合到第一组分的至少一个边缘,更通常地与相对的边缘结合。 因此,较硬的木材特别放置在最有效地对产品性能作出贡献的地方。 该产品类似于其中较低密度的第一部件用作网状物并且较高密度的第二部件作为凸缘部分的工字钢。产品可以以与固体锯材相同的方式处理。 它们的特征在于硬度比实心锯切或机器分级产品的刚度变化更小,并且可以在宽的宽度,厚度和长度的宽范围内制造。
    • 30. 发明授权
    • Segmented-ring magnet print head
    • 分段磁铁打印头
    • US4225250A
    • 1980-09-30
    • US949876
    • 1978-10-10
    • Richard E. WagnerVerivada ChandrasekaranEdward D. Bringhurst
    • Richard E. WagnerVerivada ChandrasekaranEdward D. Bringhurst
    • B41J2/26B41J2/28B41J3/12
    • B41J2/26B41J2/28
    • A print head for a serial dot matrix printer comprising a sandwich structure including a base plate, a segmented-ring magnet, a print hammer disc and face plate is disclosed. The segmented-ring magnet comprises a ring formed of a magnetic material having spaced apart, magnetized, regions (segments). The print hammer disc is formed of a magnetically permeable, resilient material and has a plurality of inwardly projecting arms (hammers), each of which is aligned with a magnetized segment. Mounted on the hammers are print blades, which are aligned with radial slots formed in the face plate. Each print blade includes a dot-printing tip that projects orthogonally outwardly from the blade, and lies in a central aperture in the face plate. Mounted on the base plate, in line with each hammer, is a post having a coil mounted thereon. When the coils are de-energized, the magnetic field formed at the tips of the posts is adequate to overcome the spring force of the related hammer, whereby the air gap therebetween is closed and the hammer is cocked. Energization of any coil by a pulse of appropriate polarity and magnitude cancels the magnetic pull created by the related magnetic segment and allows the related hammer to pull away from the related post. This action creates a dot as the released spring force causes the dot-printing tip of the related print blade to press a print-producing material (e.g., a ribbon) against a print receiving medium (e.g., a sheet of paper). Rather than defining a single column, the dot-printing tips define two or more columns.
    • 公开了一种用于串行点阵式打印机的打印头,其包括包括基板,分段环磁体,打印锤盘和面板的夹层结构。 分段环磁体包括由具有间隔开的磁化的区域(段)的磁性材料形成的环。 打印锤盘由可渗透的弹性材料形成,并且具有多个向内突出的臂(锤),每个臂与磁化段对准。 安装在锤子上的打印刀片与形成在面板上的径向槽对齐。 每个印刷叶片包括从叶片正交向外突出并位于面板中的中心孔的点印刷端头。 安装在基板上,与每个锤子一致,是具有安装在其上的线圈的柱。 当线圈断电时,形成在柱的顶端处的磁场足以克服相关锤的弹簧力,由此其间的气隙被封闭并且锤子被起动。 通过适当极性和大小的脉冲对任何线圈的通电消除由相关磁段产生的磁拉,并允许相关的锤从相关的柱上拉开。 当释放的弹簧力导致相关打印刀片的点印刷尖端将印刷产生材料(例如,色带)压靠在打印接收介质(例如,一张纸)上时,该动作产生点。 点阵打印提示不是定义单个列,而是定义两列或更多列。