利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.018 秒)

    Polarization mode dispersion compensation and polarization demultiplexing systems and methods for optical transmission systems
    2.
    发明授权
    Polarization mode dispersion compensation and polarization demultiplexing systems and methods for optical transmission systems 有权
    偏振模色散补偿和偏振解复用系统和光传输系统的方法

    公开(公告)号：US08045856B2

    公开(公告)日：2011-10-25

    申请号：US12263301

    申请日：2008-10-31

    申请人： Yunfeng Shen ,  Shan Zhong ,  Harshad Sardesai

    发明人： Yunfeng Shen ,  Shan Zhong ,  Harshad Sardesai

    IPC分类号： H04J14/06

    CPC分类号： H04J14/06 ,  H04B10/2572

    摘要： The present disclosure provides polarization mode dispersion compensation (PMDC) and polarization de-multiplexing systems and methods for polarization multiplexed (PolMux) optical transmission systems. The PMDC detects an error signal before a polarization splitter in PolMux systems for controlling polarization controllers (PC) and/or DGDs in the PMDC for return-to-zero (RZ) differential m-phase shift keying (DmPSK) signals. For bit-aligned PolMux systems, the error signal could be the level of clock frequency at one, two, or more times of the baud rate at one polarization. For bit-interleaved PolMux systems, the error signal could be the level of clock frequency at two times of the baud rate at one polarization. The PMDC can operate in PolMux systems with any arbitrary time offset between the two polarizations. The polarization de-multiplexer utilizes error detection at both output arms of a polarization splitter to mitigate PDL impact on any PolMux type of signal.

    摘要翻译： 本公开提供了用于偏振复用（PolMux）光传输系统的偏振模色散补偿（PMDC）和极化解复用系统和方法。 PMDC在PolMux系统中的偏振分离器之前检测到一个误差信号，用于控制PMDC中的偏振控制器（PC）和/或DGD，用于归零（RZ）差分m相移键控（DmPSK）信号。 对于位对齐的PolMux系统，错误信号可能是在一个极化波特率的一个，两个或更多次时钟频率的电平。 对于位交错的PolMux系统，错误信号可能是在一个极化波特率的两倍时钟频率的电平。 PMDC可以在PolMux系统中运行，在两个极化之间任意时间偏移。 极化解复用器利用偏振分离器的两个输出臂的误差检测来减轻PDL对任何PolMux类型信号的影响。

    Novel optical interferometric scanning detector for cardiovascular function monitoring
    5.
    发明申请
    Novel optical interferometric scanning detector for cardiovascular function monitoring 审中-公开

    公开(公告)号：US20180192898A1

    公开(公告)日：2018-07-12

    申请号：US15403184

    申请日：2017-01-11

    申请人： Jin Zhang ,  Shan Zhong ,  Wei Chen ,  Zhonghua Zhu ,  Lei Wu

    发明人： Jin Zhang ,  Shan Zhong ,  Wei Chen ,  Zhonghua Zhu ,  Lei Wu

    IPC分类号： A61B5/024 ,  A61B5/00 ,  A61B5/021 ,  A61B7/04

    CPC分类号： A61B7/04 ,  A61B5/0022 ,  A61B5/0064 ,  A61B5/02108 ,  A61B5/02133 ,  A61B5/02444 ,  A61B5/1102

    摘要： The object of the present invention is to disclose a novel optical miniaturized handheld medical device for convenient monitoring and/or data collection of detailed signals on human cardiovascular function. The implementation consists of a number of advanced technologies, including interferometric detection, phase controlled focusing beam steering, auto-tracking scheme and algorism, and integrated optical chip assembly to enhance the device's performance and miniaturization. Briefly, this handheld medical device directs a single or dual output laser beam(s) onto certain skin surface to detect the surface vibration velocity at the point where the laser hits the surface. The skin surface vibrates in response to cardiovascular signals, such as blood pressure pulses, turbulent blood flow through narrowed arteries, pumping actions of the heart, or the closure of the heart valves etc. The miniaturized apparatus thus is capable of detecting these signals for the assessment of cardiovascular functions in both healthy and disease conditions.

    Method and apparatus for aligning phases of a master clock and a slave clock
    6.
    发明授权
    Method and apparatus for aligning phases of a master clock and a slave clock 有权
    用于对准主时钟和从时钟的相位的方法和装置

    公开(公告)号：US08731125B2

    公开(公告)日：2014-05-20

    申请号：US13259655

    申请日：2009-09-02

    申请人： Shan Zhong

    发明人： Shan Zhong

    IPC分类号： H04L23/00

    CPC分类号： H03L7/0814 ,  H03L7/0805 ,  H04J3/0688

    摘要： The present invention discloses a method and apparatus for aligning the phases of a master clock and a slave clock; and the method comprises the following steps: A. locking a phase of a master clock; B. measuring phase difference between a slave clock and the master clock; and C. adjusting a phase output by the slave clock so as to align it with the phase of the master clock based on the phase difference measured in Step B. The present invention also discloses an apparatus for aligning the phases of a master clock and a slave clock. By measuring the phase difference between the master clock and the slave clock, and aligning the phases of the master clock and the slave clock according to the phase difference the present invention improves the precision of phase alignment without increasing costs.

    摘要翻译： 本发明公开了一种用于对准主时钟和从时钟的相位的方法和装置; 该方法包括以下步骤：A.锁定主时钟的相位; B.测量从时钟和主时钟之间的相位差; 和C.调整由从时钟输出的相位，以使其与主时钟的相位基于在步骤B中测量的相位差对准。本发明还公开了一种用于使主时钟和 从时钟 通过测量主时钟和从时钟之间的相位差，并且根据相位差对准主时钟和从时钟的相位，本发明在不增加成本的情况下提高了相位对准的精度。

    PERFORMANCE OPTIMIZED RECEIVER WITH BANDWIDTH ADAPTIVE OPTICAL FILTER FOR HIGH SPEED LONG HAUL WDM SYSTEMS
    7.
    发明申请
    PERFORMANCE OPTIMIZED RECEIVER WITH BANDWIDTH ADAPTIVE OPTICAL FILTER FOR HIGH SPEED LONG HAUL WDM SYSTEMS 有权
    具有带宽自适应滤光片的性能优化接收器，用于高速长寿命WDM系统

    公开(公告)号：US20090097849A1

    公开(公告)日：2009-04-16

    申请号：US11872176

    申请日：2007-10-15

    申请人： Mark Childers ,  Shan Zhong ,  Xiaohui Yang

    发明人： Mark Childers ,  Shan Zhong ,  Xiaohui Yang

    IPC分类号： H04J14/02

    CPC分类号： H04J14/02 ,  H04J14/021 ,  H04J14/0221

    摘要： The present invention provides a performance optimized receiver with a bandwidth adaptive optical filter for high speed long haul wavelength division multiplexed systems, such as 40 Gb/s and 100 Gb/s wavelength division multiplexed systems. The performance optimized receiver includes: a bandwidth and wavelength tunable optical filter, wherein the bandwidth and wavelength tunable optical filter is operable for receiving a plurality of wavelengths associated with a wavelength division multiplexed signal and passing one or more selected wavelengths, and wherein the bandwidth and wavelength tunable optical filter is operable for adjusting the bandwidth of each of the one or more selected wavelengths; and a receiver coupled to the bandwidth and wavelength tunable optical filter. Preferably, the receiver includes one or more of a bit error rate monitoring module and a signal quality monitoring module operable for monitoring the one or more selected wavelengths and providing feedback to the bandwidth and wavelength tunable optical filter such that the bandwidth and wavelength tunable optical filter adaptively adjusts the bandwidth of each of the one or more selected wavelengths.

    摘要翻译： 本发明提供一种性能优化的接收机，其具有用于高速长途波分复用系统（例如40Gb / s和100Gb / s波分复用系统）的带宽自适应滤波器。 所述性能优化的接收机包括：带宽和波长可调谐滤光器，其中所述带宽和波长可调谐滤光器可操作用于接收与波分复用信号相关联的多个波长并且通过一个或多个所选波长，并且其中所述带宽和 波长可调谐滤光器可操作用于调整所述一个或多个所选波长中的每一个的带宽; 以及耦合到带宽和波长可调谐滤光器的接收器。 优选地，接收机包括误码率监测模块和信号质量监控模块中的一个或多个，可操作用于监视一个或多个所选择的波长并向带宽和波长可调谐滤光器提供反馈，使得带宽和波长可调谐滤光器 自适应地调整所述一个或多个所选波长中的每一个的带宽。

    High-capacity, low-leakage multilayer dielectric stacks
    8.
    发明申请
    High-capacity, low-leakage multilayer dielectric stacks 审中-公开
    大容量，低漏电多层电介质叠层

    公开(公告)号：US20080107885A1

    公开(公告)日：2008-05-08

    申请号：US11827555

    申请日：2007-07-12

    申请人： S. Alpay ,  Jospeh Mantese ,  Shan Zhong

    发明人： S. Alpay ,  Jospeh Mantese ,  Shan Zhong

    IPC分类号： B32B9/00 ,  H01L21/00

    CPC分类号： H01L28/56

    摘要： The present disclosure is directed to an exemplary method for designing, implementing, and making a high capacity low leakage multilayer stack for various electronic applications. In a particular embodiment, the multilayer stack is made up of a dielectric/ferroelectric/dielectric trilayer. This configuration has shown to have giant dielectric permittivity which is much higher than conventional gate dielectrics. The DE/FE interlayer exhibits strong interlayer coupling, yielding desired properties. In order to prevent leakage and loss while maintaining high capacity, certain parameters of each layer must exist. The present disclosure describes a method of quantitatively achieving these parameters through correlating critical fraction with dielectric constant. Moreover, this method can be used for scalability of electronic materials.

    摘要翻译： 本公开涉及用于设计，实施和制造用于各种电子应用的高容量低泄漏多层堆叠的示例性方法。 在特定实施例中，多层叠层由介电/铁电/介质三层组成。 该配置已经显示出具有比常规栅极电介质高得多的大介电常数。 DE / FE夹层表现出强的层间耦合，产生所需的性能。 为了在保持高容量的同时防止泄漏和损耗，必须存在每层的某些参数。 本公开描述了通过将关键分数与介电常数相关联来定量地实现这些参数的方法。 此外，该方法可用于电子材料的可扩展性。