中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

27 records (took 0.012 seconds)

    MULTICAST OPTICAL SWITCH
    21.
    发明申请
    MULTICAST OPTICAL SWITCH 有权
    多媒体光学开关

    公开(公告)号：US20130202297A1

    公开(公告)日：2013-08-08

    申请号：US13368254

    申请日：2012-02-07

    Applicant: Massimo MARTINELLI ,  Manish Sharma ,  Ruipeng Sun ,  Mark H. Garrett ,  Aravanan Gurusami

    Inventor： Massimo MARTINELLI ,  Manish Sharma ,  Ruipeng Sun ,  Mark H. Garrett ,  Aravanan Gurusami

    IPC: H04J14/00

    CPC classification number: G02B27/283 ,  G02B6/2817 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/3546 ,  G02B2006/1215

    Abstract: A multicast optical switch includes a free-space optical assembly of discrete splitters, cylindrical optics, and a linear array of reflective switching devices, such as microelectromechanical systems (MEMS) mirrors, to provide low-loss, high-performance multicast switching in a compact configuration. The assembly of optical splitters may include multiple planar lightwave circuit splitters or a multi-reflection beam splitter that includes a linear array of partially reflecting mirrors, each of a different reflectivity.

    Abstract translation: 组播光学交换机包括离散分离器的自由空间光学组件，圆柱形光学器件和诸如微机电系统（MEMS）反射镜的反射式开关器件的线性阵列，以在紧凑的情况下提供低损耗，高性能的多播切换 组态。 光分路器的组件可以包括多个平面光波分路器或多反射分束器，其包括具有不同反射率的部分反射镜的线性阵列。

    SYSTEM OF METHOD FOR DYNAMIC RANGE EXTENSION
    23.
    发明申请
    SYSTEM OF METHOD FOR DYNAMIC RANGE EXTENSION 有权
    动态范围扩展方法系统

    公开(公告)号：US20110090558A1

    公开(公告)日：2011-04-21

    申请号：US12970370

    申请日：2010-12-16

    Applicant: Aravanan Gurusami ,  Douglas Llewellyn Butler ,  Timothy K. Zahnley ,  Scott R. Dahl ,  Peter G. Wigley

    Inventor： Aravanan Gurusami ,  Douglas Llewellyn Butler ,  Timothy K. Zahnley ,  Scott R. Dahl ,  Peter G. Wigley

    IPC: H01S3/094 ,  H01S3/13 ,  H01S3/067

    CPC classification number: H01S3/06754 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/0941 ,  H01S3/10069 ,  H01S3/1301

    Abstract: The present invention generally relates to the operation of optical network equipment such as optical amplifiers. In one aspect, a method of operating an optical amplifier is provided such that output of the optical amplifier avoids the effects of operating an optical gain medium in a non-linear (kink) region of an L-I curve. The method generally includes operating an optical gain medium in a fully off state or fully on state above the kink region with a PWM signal. In another aspect, the effects of the kink region may be compensated for by utilizing a lookup table. A sample of the optical power of an amplified optical signal may be used to select an entry in the lookup table that compensates for non-linearities in the kink region. In yet a further aspect, a lookup table may be used to control a pulse modulator to compensate for non-linearites in the kink region of the L-I curve.

    Abstract translation: 本发明一般涉及诸如光放大器之类的光网络设备的操作。 一方面，提供了一种操作光放大器的方法，使得光放大器的输出避免了在L-I曲线的非线性（扭结）区域中操作光学增益介质的影响。 该方法通常包括以PWM信号操作处于扭结区域的完全关闭状态或完全导通状态的光学增益介质。 在另一方面，可以通过利用查找表来补偿扭结区域的影响。 放大的光信号的光功率的样本可以用于选择补偿在扭结区域中的非线性的查找表中的条目。 在另一方面，可以使用查找表来控制脉冲调制器来补偿L-I曲线的扭结区域中的非线性元素。

    System of method for dynamic range extension
    24.
    发明授权
    System of method for dynamic range extension 有权
    动态范围扩展方法系统

    公开(公告)号：US07856037B2

    公开(公告)日：2010-12-21

    申请号：US11687444

    申请日：2007-03-16

    Applicant: Aravanan Gurusami ,  Douglas Llewellyn Butler ,  Timothy K. Zahnley ,  Scott R. Dahl ,  Peter G. Wigley

    Inventor： Aravanan Gurusami ,  Douglas Llewellyn Butler ,  Timothy K. Zahnley ,  Scott R. Dahl ,  Peter G. Wigley

    IPC: H01S3/13 ,  H01S3/00

    CPC classification number: H01S3/06754 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/0941 ,  H01S3/10069 ,  H01S3/1301

    Abstract: The present invention generally relates to the operation of optical network equipment such as optical amplifiers. In one aspect, a method of operating an optical amplifier is provided such that output of the optical amplifier avoids the effects of operating an optical gain medium in a non-linear (kink) region of an L-I curve. The method generally includes operating an optical gain medium in a fully off state or fully on state above the kink region with a PWM signal. In another aspect, the effects of the kink region may be compensated for by utilizing a lookup table. A sample of the optical power of an amplified optical signal may be used to select an entry in the lookup table that compensates for non-linearities in the kink region. In yet a further aspect, a lookup table may be used to control a pulse modulator to compensate for non-linearites in the kink region of the L-I curve.

    Abstract translation: 本发明一般涉及诸如光放大器之类的光网络设备的操作。 一方面，提供了一种操作光放大器的方法，使得光放大器的输出避免了在L-I曲线的非线性（扭结）区域中操作光学增益介质的影响。 该方法通常包括以PWM信号操作处于扭结区域的完全关闭状态或完全导通状态的光学增益介质。 在另一方面，可以通过利用查找表来补偿扭结区域的影响。 放大的光信号的光功率的样本可以用于选择补偿在扭结区域中的非线性的查找表中的条目。 在另一方面，可以使用查找表来控制脉冲调制器来补偿L-I曲线的扭结区域中的非线性元素。

    Increased transmission capacity for a fiber-optic link
    25.
    发明授权
    Increased transmission capacity for a fiber-optic link 有权

    公开(公告)号：US06963697B2

    公开(公告)日：2005-11-08

    申请号：US10696025

    申请日：2003-10-29

    Applicant: Aravanan Gurusami ,  Joseph F. Chiappetta

    Inventor： Aravanan Gurusami ,  Joseph F. Chiappetta

    IPC: H04B10/152 ,  H04L25/49 ,  H04B10/06

    CPC classification number: H04L25/49 ,  H04B10/6931

    Abstract: A method of decoding a signal in an optical fiber. In one embodiment the method includes receiving the optical signal, wherein the optical signal is a pulse amplitude modulated signal. Converting the optical signal to an electrical signal. Comparing the electrical signal with a plurality of levels. Producing comparison output signals based on the comparison of the electrical signal with the plurality of levels. Processing the comparison output signals on a clock to produce processed output signals and latching the processed output signals on a clock signal to generate the plurality of serial, digital data streams.

    Expandable cable television subscriber control system
    26.
    发明授权
    Expandable cable television subscriber control system 失效
    可扩展有线电视用户控制系统

    公开(公告)号：US5255318A

    公开(公告)日：1993-10-19

    申请号：US839139

    申请日：1992-02-20

    Applicant: Aravanan Gurusami ,  Robert Chamberlin ,  Victor J. Jacek ,  Thomas P. Strong ,  Jeffrey L. Cox ,  Mark Chapman

    Inventor： Aravanan Gurusami ,  Robert Chamberlin ,  Victor J. Jacek ,  Thomas P. Strong ,  Jeffrey L. Cox ,  Mark Chapman

    IPC: H04N7/16 ,  H04N7/167

    CPC classification number: H04K3/825 ,  H04K3/41 ,  H04K3/42 ,  H04N7/166 ,  H04K2203/14 ,  H04K2203/34

    Abstract: A subscriber control system designed to be placed outside of the subscriber's home, for controlling access to cable television signals provided by a cable television headend. The system is modular in design containing a single control module and a single RF distribution module both shared by a number of jammer modules. The jammer modules contain a plurality of frequency agile oscillators, the frequencies of which can be changed in time-multiplex fashion. The outputs of the jammer modules can be shared amongst a number of subscribers using space division switching. The system features switching utilizing a plurality of series connected diodes to form a transmission line switch and also utilizes filters having inductive elements which are configured by etching processes

    Abstract translation: 用户控制系统被设计为放置在用户家庭之外，用于控制对由有线电视头端提供的有线电视信号的访问。 该系统是模块化设计，包含单个控制模块和单个RF分配模块，由多个干扰模块共享。 干扰模块包含多个频率敏捷振荡器，其频率可以以时间复用的方式改变。 干扰模块的输出可以在使用空分切换的多个用户之间共享。 该系统具有利用多个串联连接的二极管的切换以形成传输线开关，并且还利用具有通过蚀刻工艺配置的电感元件的滤波器

Patent Agency Ranking