Polarization-alternating optical signal generation using CSRZ modulation
    3.
    发明授权
    Polarization-alternating optical signal generation using CSRZ modulation 有权
    使用CSRZ调制的极化交替光信号生成

    公开(公告)号:US08787709B2

    公开(公告)日:2014-07-22

    申请号:US13435775

    申请日:2012-03-30

    IPC分类号: G02F1/035 G02F1/01

    摘要: A method for optical chirp-free optical polarization modulation includes dividing a data modulated optical signal into a first optical path and a second optical path, using a Mach-Zehnder intensity modulator in the first optical path for imparting a π phase difference between adjacent symbols of the data modulated optical signal in the first optical path, adjusting a delay and amplitude of symbols of the data modulated optical signal in the second path so that the symbols in the first path and the symbols in the second path are synchronized and have substantially equal power levels, and combining the first and second optical paths so that symbols from the first and second optical paths are in orthogonal polarizations.

    摘要翻译: 一种用于无啁啾光学偏振调制的方法包括:使用第一光路中的马赫 - 曾德尔强度调制器将数据调制光信号划分成第一光路和第二光路, 在第一光路中的数据调制光信号的相邻符号之间的相位差,调整第二路径中的数据调制光信号的符号的延迟和幅度,使得第一路径中的符号和第二路径中的符号为 同步并且具有基本上相等的功率电平,并且组合第一和第二光路,使得来自第一和第二光路的符号处于正交偏振。

    Coherent Interleaved Polarization-Multiplexing Optical Communications with Single IQ Modulator
    4.
    发明申请
    Coherent Interleaved Polarization-Multiplexing Optical Communications with Single IQ Modulator 审中-公开
    具有单IQ调制器的相干交错极化复用光通信

    公开(公告)号:US20120321311A1

    公开(公告)日:2012-12-20

    申请号:US13523045

    申请日:2012-06-14

    IPC分类号: H04J14/06

    摘要: An inventive method for coherent interleaved polarization-multiplexing PolMux optical communications with a single IQ modulator includes modulating a light source to generate a 50% return-to-zero RZ signal pulse at a frequency Rs, driving a single IQ modulator with inphase I and quadrature phase Q data at a bit rate of sais Rs to introduce phase modulation on said 50% RZ signal pulse to produce a QPSK pulse signal with all symbols being in a same polarization state without any time overlapping; and polarization modulating said QPSK signal to alternatively convert said QPSK signal into two orthogonal polarizations states enabling an interleaving PolMux signal with a symbol rate of Rs/2.

    摘要翻译: 用于具有单个IQ调制器的相干交错偏振复用PolMux光通信的创新方法包括调制光源以产生频率为Rs的50%归零RZ信号脉冲,以同相I和正交驱动单个IQ调制器 相位Q数据以sais的比特率在所述50%RZ信号脉冲上引入相位调制以产生QPSK脉冲信号,所有符号处于相同的极化状态,没有任何时间重叠; 以及对所述QPSK信号进行极化调制,以将所述QPSK信号交替地转换为使得能够以Rs / 2的符号率进行交织的PolMux信号的两个正交极化状态。

    Polarization-Alternating Optical Signal Generation using CSRZ Modulation
    6.
    发明申请
    Polarization-Alternating Optical Signal Generation using CSRZ Modulation 有权
    使用CSRZ调制的极化交替光信号生成

    公开(公告)号:US20120251028A1

    公开(公告)日:2012-10-04

    申请号:US13435775

    申请日:2012-03-30

    IPC分类号: G02F1/01

    摘要: A method for optical chirp-free optical polarization modulation includes dividing a data modulated optical signal into a first optical path and a second optical path, using a Mach-Zehnder intensity modulator in the first optical path for imparting a π phase difference between adjacent symbols of the data modulated optical signal in the first optical path, adjusting a delay and amplitude of symbols of the data modulated optical signal in the second path so that the symbols in the first path and the symbols in the second path are synchronized and have substantially equal power levels, and combining the first and second optical paths so that symbols from the first and second optical paths are in orthogonal polarizations.

    摘要翻译: 一种用于无啁啾光学偏振调制的方法包括:使用第一光路中的马赫 - 曾德尔强度调制器将数据调制光信号划分成第一光路和第二光路, 在第一光路中的数据调制光信号的相邻符号之间的相位差,调整第二路径中的数据调制光信号的符号的延迟和幅度,使得第一路径中的符号和第二路径中的符号为 同步并且具有基本上相等的功率电平,并且组合第一和第二光路,使得来自第一和第二光路的符号处于正交偏振。

    Optical surge preventing method and system for use with or in a rare
earth doped fiber circuit
    7.
    发明授权
    Optical surge preventing method and system for use with or in a rare earth doped fiber circuit 失效
    用于或稀土掺杂光纤电路的防浪涌方法和系统

    公开(公告)号:US6064514A

    公开(公告)日:2000-05-16

    申请号:US740413

    申请日:1996-10-29

    IPC分类号: H01S3/10 H01S3/13 H01S3/00

    摘要: Optical surge preventing systems and methods for rare earth-doped optical fiber amplifiers are disclosed. The systems are so arranged as to cause any signal existing in a doped fiber section so as not to over excite the rare earth elements in the doped fiber section. In one embodiment, a background signal light with such a wavelength as to cause induced emission in the doped fiber section is always coupled into the doped fiber section regardless of whether a message signal light exists or not. The background signal light may be generated by any suitable light source or a light spontaneously emitted from either end of the doped fiber section. In another embodiment, a dummy signal light is coupled into the doped fiber section if the level of the message signal light becomes less than a predetermined value. Coupling of the background signal light or the dummy signal light into the doped fiber section may be done from either of the message signal input and output sides.

    摘要翻译: 公开了一种用于稀土掺杂光纤放大器的防浪涌系统和方法。 这些系统被布置成使得存在于掺杂光纤部分中的任何信号不会过度激发掺杂光纤部分中的稀土元素。 在一个实施例中,无论消息信号灯是否存在,具有在掺杂光纤部分中引起感应发射的波长的背景信号光总是耦合到掺杂光纤部分中。 背景信号光可以由任何合适的光源或从掺杂光纤部分的任一端自发发射的光产生。 在另一个实施例中,如果消息信号光的电平变得小于预定值,则虚拟信号光耦合到掺杂光纤部分中。 将背景信号光或虚拟信号光耦合到掺杂光纤部分可以从消息信号输入和输出侧中的任一个进行。

    Dictionary data registration apparatus and dictionary data registration method
    8.
    发明授权
    Dictionary data registration apparatus and dictionary data registration method 失效
    字典数据注册装置和字典数据登记方法

    公开(公告)号:US08385608B2

    公开(公告)日:2013-02-26

    申请号:US12568341

    申请日:2009-09-28

    申请人: Yasuhiro Aoki

    发明人: Yasuhiro Aoki

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00288 G06K9/6255

    摘要: A face data registration apparatus is an apparatus to register dictionary data for walker authentication by use of a face image. The face data registration apparatus causes a posture data collection unit to collect posture variation data from a plurality of face images obtained by photographing a face of a registrant whose posture (face direction) is changed, further causes a walking data collection unit to collect walking data from a face image obtained by photographing a face of the registrant who actually walks along a passage, causes a synthesizing unit to create dictionary data by synthesizing posture variation data and walking data and registers the created dictionary data as dictionary data used to authenticate a person who walks in the passage by face collation into a dictionary data unit.

    摘要翻译: 面部数据登记装置是通过使用面部图像来登记用于步行者认证的字典数据的装置。 面部数据登记装置使得姿势数据收集单元从通过拍摄姿势(面部方向)改变的登记者的脸部获得的多个面部图像收集姿势变化数据,进一步使步行数据收集单元收集步行数据 从通过拍摄实际沿着通道行进的注册人的脸部获得的脸部图像,使合成单元通过合成姿势变化数据和行走数据来创建词典数据,并将所创建的词典数据注册为用于认证人 通过面部整理走在通道中,成为字典数据单元。

    Ni-BASED SINGLE CRYSTAL SUPERALLOY AND TURBINE BLADE
    9.
    发明申请
    Ni-BASED SINGLE CRYSTAL SUPERALLOY AND TURBINE BLADE 审中-公开
    镍基单晶超级合金和涡轮叶片

    公开(公告)号:US20120070303A1

    公开(公告)日:2012-03-22

    申请号:US13375987

    申请日:2010-08-09

    IPC分类号: F01D5/14 C22C19/05

    摘要: The present invention provides a Ni-based single crystal superalloy which has the following composition by weight: 0.1 wt % or more and 9.9 wt % or less of Co, 5.1 wt % or more and 10.0 wt % or less of Cr, 1.0 wt % or more and 4.0 wt % or less of Mo, 8.1 wt % or more and 11.0 wt % or less of W, 4.0 wt % or more and 9.0 wt % or less of Ta, 5.2 wt % or more and 7.0 wt % or less of Al, 0.1 wt % or more and 2.0 wt % or less of Ti, 0.05 wt % or more and 0.3 wt % or less of Hf, 1.0 wt % or less of Nb and less than 3.0 wt % of Re with the remainder including Ni and unavoidable impurities. This Ni-based single crystal superalloy has a low Re content and also has excellent high-temperature strength, mainly creep strength.

    摘要翻译: 本发明提供一种Ni基单晶超耐热合金,其具有以下重量组成:0.1重量%以上且9.9重量%以下的Co,5.1重量%以上10.0重量%以下的Cr,1.0重量% 以上,4.0重量%以下,W:8.1重量%以上,11.0重量%以下,W:4.0重量%以上9.0重量%以下,Ta:5.2重量%以上7.0重量%以下 的Al,0.1重量%以上且2.0重量%以下的Ti,0.05重量%以上且0.3重量%以下的Hf,1.0重量%以下的Nb和小于3.0重量%的Re,余量包括 Ni和不可避免的杂质。 这种Ni基单晶超合金具有低的Re含量,并且具有优异的高温强度,主要是蠕变强度。

    DICTIONARY DATA REGISTRATION APPARATUS AND DICTIONARY DATA REGISTRATION METHOD
    10.
    发明申请
    DICTIONARY DATA REGISTRATION APPARATUS AND DICTIONARY DATA REGISTRATION METHOD 失效
    字典资料注册装置及字典资料注册方法

    公开(公告)号:US20100067751A1

    公开(公告)日:2010-03-18

    申请号:US12568341

    申请日:2009-09-28

    申请人: Yasuhiro Aoki

    发明人: Yasuhiro Aoki

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00288 G06K9/6255

    摘要: A face data registration apparatus is an apparatus to register dictionary data for walker authentication by use of a face image. The face data registration apparatus causes a posture data collection unit to collect posture variation data from a plurality of face images obtained by photographing a face of a registrant whose posture (face direction) is changed, further causes a walking data collection unit to collect walking data from a face image obtained by photographing a face of the registrant who actually walks along a passage, causes a synthesizing unit to create dictionary data by synthesizing posture variation data and walking data and registers the created dictionary data as dictionary data used to authenticate a person who walks in the passage by face collation into a dictionary data unit.

    摘要翻译: 面部数据登记装置是通过使用面部图像来登记用于步行者认证的字典数据的装置。 面部数据登记装置使得姿势数据收集单元从通过拍摄姿势(面部方向)改变的登记者的脸部获得的多个面部图像收集姿势变化数据,进一步使步行数据收集单元收集步行数据 从通过拍摄实际沿着通道行进的注册人的脸部获得的脸部图像,使合成单元通过合成姿势变化数据和行走数据来创建词典数据,并将所创建的词典数据注册为用于认证人 通过面部整理走在通道中,成为字典数据单元。