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    • 1. 发明授权
    • Bandwidth adjusting method and communication node
    • 带宽调整方法和通信节点
    • US09071376B2
    • 2015-06-30
    • US13464885
    • 2012-05-04
    • Wei SuHuaping QingXi HuangChiwu Ding
    • Wei SuHuaping QingXi HuangChiwu Ding
    • H04B10/50H04B10/60H04J3/16
    • H04J3/1682H04J3/1652H04J2203/0067H04Q2213/1301
    • A bandwidth adjusting method and a communication node are provided. The adjusting method includes: sending, by an upstream ingress unit, a group of multi-channel parallel basic switch cells in which adjustment signaling is carried to all downstream branch egress units; sending normal signaling when determining that adjustment response statuses returned by all the downstream branch egress units are reception acknowledgment; after receiving the normal signaling by the downstream branch egress unit, adding or removing the basic switch cell into or from a next group of multi-channel parallel basic switch cells according to the adjustment signaling; and adjusting a time slot of an HO ODU sent by the downstream branch egress unit to a downstream node, and instructing the downstream node to adjust the time slot of the HO ODU. Through the method and the communication node, lossless bandwidth adjustment in a point-to-multipoint OTN asymmetric bandwidth carrier system is implemented.
    • 提供带宽调整方法和通信节点。 所述调整方法包括:由上游入口单元向所有下游分支出口单元发送调整信令的一组多信道并行基本交换小区; 当确定所有下游分支出口单元返回的调整响应状态是接收确认时,发送正常信令; 在下游分支出口单元接收到正常信令后,根据调整信令将基本交换单元加入或移出下一组多通道并行基本交换单元; 并将下游分支出口单元发送的HO ODU的时隙调整到下游节点,并指示下游节点调整HO ODU的时隙。 通过该方法和通信节点,实现了点对多点OTN非对称带宽载波系统中的无损带宽调整。
    • 2. 发明申请
    • BANDWIDTH ADJUSTING METHOD AND COMMUNICATION NODE
    • 带宽调整方法和通信节点
    • US20120224857A1
    • 2012-09-06
    • US13464885
    • 2012-05-04
    • Wei SuHuaping QingXi HuangChiwu Ding
    • Wei SuHuaping QingXi HuangChiwu Ding
    • H04J14/08
    • H04J3/1682H04J3/1652H04J2203/0067H04Q2213/1301
    • A bandwidth adjusting method and a communication node are provided. The adjusting method includes: sending, by an upstream ingress unit, a group of multi-channel parallel basic switch cells in which adjustment signaling is carried to all downstream branch egress units; sending normal signaling when determining that adjustment response statuses returned by all the downstream branch egress units are reception acknowledgment; after receiving the normal signaling by the downstream branch egress unit, adding or removing the basic switch cell into or from a next group of multi-channel parallel basic switch cells according to the adjustment signaling; and adjusting a time slot of an HO ODU sent by the downstream branch egress unit to a downstream node, and instructing the downstream node to adjust the time slot of the HO ODU. Through the method and the communication node, lossless bandwidth adjustment in a point-to-multipoint OTN asymmetric bandwidth carrier system is implemented.
    • 提供带宽调整方法和通信节点。 所述调整方法包括:由上游入口单元向所有下游分支出口单元发送调整信令的一组多信道并行基本交换小区; 当确定所有下游分支出口单元返回的调整响应状态是接收确认时,发送正常信令; 在下游分支出口单元接收到正常信令后,根据调整信令将基本交换单元加入或移出下一组多通道并行基本交换单元; 并将下游分支出口单元发送的HO ODU的时隙调整到下游节点,并指示下游节点调整HO ODU的时隙。 通过该方法和通信节点,实现了点对多点OTN非对称带宽载波系统中的无损带宽调整。
    • 9. 发明申请
    • Delivering a short Arc lamp light for eye imaging
    • 为眼睛成像提供短弧灯
    • US20080123052A1
    • 2008-05-29
    • US11606597
    • 2006-11-29
    • Wei SuYan ZhouYeou-Yen ChengQing Chun Zhao
    • Wei SuYan ZhouYeou-Yen ChengQing Chun Zhao
    • A61B3/10
    • A61B3/0008A61B3/12
    • A light delivery technique includes optical configurations as well as the associated methods that generate a ring beam from a linear light source. In one embodiment, a remote light source module delivers illumination light to a fundus camera and/or slit lamp. In another embodiment, an arrangement combines the use of a light pipe homogenizer and a ring beam transformer for efficiently collecting light from a substantially axially linear light source, homogenizing the collected light that lacks low angle flux relative to the optical axis, and transforming the light into a ring beam with a substantially improved low angle flux distribution. In still another embodiment, light emitted from a substantially axially linear light source is directly collected by a curved surface mirror and spatially filtered into a ring beam. The ring illumination beam can be co-axially projected on a sample such as the pupil of a human eye and at the same time the light beam also has a large enough relatively uniform angular flux distribution so that a wide area on the retina of the eye can be uniformly illuminated.
    • 光输送技术包括光学配置以及从线性光源产生环形光束的相关方法。 在一个实施例中,远程光源模块将照明光传送到眼底照相机和/或裂隙灯。 在另一个实施例中,一种布置结合了光管均质器和环形光束变换器的使用,用于有效地收集来自基本轴向线性光源的光,使收集到的光相互均匀化,所述光相对于光轴缺少低角度通量,以及将光转换 成为具有基本上改进的低角度通量分布的环形梁。 在另一个实施例中,从基本轴向线性光源发射的光直接由弯曲表面镜收集,并在空间上过滤成环形光束。 环形照明光束可以同轴地投射在诸如人眼的瞳孔的样品上,并且同时光束也具有足够大的相对均匀的角度通量分布,使得眼睛的视网膜上的广泛区域 可以均匀照明。
    • 10. 发明授权
    • Signal repetition-rate and frequency-drift estimator using proportional-delayed zero-crossing techniques
    • 使用比例延迟过零技术的信号重复率和频率漂移估计器
    • US07184937B1
    • 2007-02-27
    • US11183219
    • 2005-07-14
    • Wei SuJohn A. Kosinski
    • Wei SuJohn A. Kosinski
    • G06F15/00
    • H03K5/1536G01R23/02H04L27/0014H04L2027/0046
    • Proportional-delayed zero-crossing frequency-drift estimator devices are provided. Given N-number of time samples, the current zero-crossing time estimation technique uses only two zero-crossing time samples for repetition-rate estimation. The term “zero-crossing point” refers to the point where a sinusoidal waveform varies from a positive to a negative value and crosses the zero value in the process. The proportional-delayed zero-crossing frequency-drift estimator devices employ four zero-crossing time samples by utilizing both proportional zero-crossing points for current information and delayed zero-crossing points for past information so that the noises in the time samples will be smoothed out making a less noisy estimation. The proportional-delayed zero-crossing frequency-drift estimators are composed of a hysteretic nonlinear converter, a zero-crossing time-difference counter, a group of shift registers and adders, a repetition-rate algorithm, a reciprocal operator and a means for differentiation operation. A number of different embodiments are provided, but all embodiments include a hysteretic nonlinear converter which enhances the zero-crossing features and blocks the signal random noise so that the zero-crossing point is measured more accurately.
    • 提供比例延迟的过零频率漂移估计器件。 给定N个时间样本,当前的过零时间估计技术仅使用两个过零时间样本进行重复率估计。 术语“过零点”是指正弦波形从正值到负值变化的点,并且在过程中跨过零值。 比例延迟过零频率漂移估计器件通过利用电流信息的两个比例过零点和过去信息的延迟过零点来采用四个过零时间样本,使得时间样本中的噪声将被平滑 做出较不嘈杂的估计。 比例延迟过零频率漂移估计器由滞后非线性转换器,零交叉时差计数器,一组移位寄存器和加法器组成,重复率算法,互易算子和分化手段 操作。 提供了许多不同的实施例,但是所有实施例都包括滞后非线性转换器,其增强过零特征并阻止信号随机噪声,从而更准确地测量过零点。