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    • 1. 发明授权
    • Polarization mode dispersion (PMD) tolerant optical signaling
    • 偏振模色散(PMD)容限光信号
    • US09520952B2
    • 2016-12-13
    • US14607276
    • 2015-01-28
    • Kevin Farley
    • Kevin Farley
    • H04B10/60H04B10/61H04B10/2569
    • H04B10/6162H04B10/2569H04B10/6166
    • A method of receiving an optical signal through an optical communication system. The optical signal is transmitted by a transmitter of the optical communication system with a predetermined State of Polarization in a succession of signalling intervals. The SoP in each signalling interval is selected to excite two orthogonal eigenvectors of Polarization Mode Dispersion (PMD) of the optical communication system. The SoP in one signalling interval may be different from the SoP in at least one other signalling interval. Modulation of the optical signal is detected in two orthogonal polarization directions. Modulation components associated with one of the two orthogonal eigenvectors are selected and used to recover data.
    • 一种通过光通信系统接收光信号的方法。 光信号由具有预定的极化状态的光通信系统的发射机以连续的信令间隔发送。 选择每个信令间隔中的SoP以激发光通信系统的偏振模色散(PMD)的两个正交特征向量。 一个信令间隔中的SoP可能与至少一个其他信令间隔中的SoP不同。 在两个正交的极化方向上检测光信号的调制。 与两个正交特征向量之一相关联的调制分量被选择并用于恢复数据。
    • 2. 发明申请
    • Queuing far/far service requests in wireless network
    • 在无线网络中排队远程/远程服务请求
    • US20070249363A1
    • 2007-10-25
    • US11821608
    • 2007-06-25
    • Carlo AmalfitanoKevin Farley
    • Carlo AmalfitanoKevin Farley
    • H04Q7/20
    • H04W72/1231H04W72/1278
    • A technique for coordinating the operation of subscriber units such as in a wireless communications system so that high-probability-of-interference communications do not take place at the same time in adjacent cell sites. A base station becomes aware of expected periods or time slots of high relatively expected interference from remote units operating in a neighboring cell site, and then schedules only low interference level transmissions for its own remote units during such periods. Expected interference information ca be exchanged by base stations directly, through a centralized base station controller-initiated schedule, or by relaying resource load status messages via remote units located near all boundaries.
    • 一种用于协调诸如无线通信系统中的用户单元的操作的技术,使得在相邻小区站点中同时不发生高概率干扰通信。 基站意识到来自在相邻小区站点中操作的远程单元的较高相对预期的干扰的期望周期或时隙,并且然后在这样的周期期间仅调度其本身的远程单元的低干扰电平传输。 预期的干扰信息可以由基站直接通过集中式基站控制器发起的调度或者通过位于所有边界附近的远程单元中继资源负载状态消息来进行交换。
    • 4. 发明授权
    • Adaptive optical amplifier control
    • 自适应光放大器控制
    • US06590700B1
    • 2003-07-08
    • US10068937
    • 2002-02-11
    • Saeid SeydnejadFrederic F. SimardZhongwei LiAnant GrewalAiping LiangKun HanEdgar VelezKevin Farley
    • Saeid SeydnejadFrederic F. SimardZhongwei LiAnant GrewalAiping LiangKun HanEdgar VelezKevin Farley
    • H01S300
    • H04B10/296H01S3/1301
    • In method of controlling an optical amplifier dynamically adapts to both configuration and performance changes of a communications system. An error vector is calculated to indicate a difference between respective detected values and target values of a parameter of a light beam downstream of the optical amplifier. A sensitivity matrix indicative of a sensitivity of the detected parameter value to incremental changes in a control variable of the optical amplifier is calculated. A predicted optimum value of the control variable is then calculated using the error vector and the sensitivity matrix. Calculation of the predicted optimum control variable value can be iterative, with the sensitivity matrix calculated either during each iteration, or at the beginning of each optimization run. As a result, optimization of the amplifier control variables is performed based on a sensitivity matrix that accurately reflects the performance of the amplifier.
    • 在控制光放大器的方法中,动态地适应通信系统的配置和性能变化。 计算误差向量,以指示光学放大器下游光束的各个检测值与参数的目标值之间的差。 计算表示检测到的参数值对光放大器的控制变量的增量变化的灵敏度的灵敏度矩阵。 然后使用误差向量和灵敏度矩阵计算控制变量的预测最佳值。 计算预测的最佳控制变量值可以是迭代的,灵敏度矩阵是在每个迭代期间计算的,或者在每个优化运行开始时计算。 结果,基于精确地反映放大器的性能的灵敏度矩阵来执行放大器控制变量的优化。