利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.039 秒)

    Multiwavelength simultaneous monitoring circuit employing arrayed-waveguide grating
    1.
    发明授权
    Multiwavelength simultaneous monitoring circuit employing arrayed-waveguide grating 失效
    采用阵列波导光栅的多波长同时监测电路

    公开(公告)号：US5617234A

    公开(公告)日：1997-04-01

    申请号：US531980

    申请日：1995-09-21

    申请人： Masafumi Koga ,  Mitsuhiro Teshima ,  Hitoshi Obara ,  Ken'ichi Sato

    发明人： Masafumi Koga ,  Mitsuhiro Teshima ,  Hitoshi Obara ,  Ken'ichi Sato

    IPC分类号： G02B6/12 ,  G02B6/34 ,  H04B10/50 ,  H04B10/572 ,  H04S14/02

    CPC分类号： H04B10/506 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12033 ,  H04B10/572 ,  G02B2006/12135

    摘要： A multiwavelength simultaneous monitoring circuit capable of precise discrimination of wavelengths of a WDM (Wavelength Division Multiplexed) signal including multiplexed wavelength waves, and suitable for optical integrated circuits having large resistance to vibration. It includes a reference optical source, an AWG (Arrayed-waveguide grating) having periodic center transmission wavelength (or crossover wavelengths) corresponding to the wavelength spacing between multiplexed waves of the WDM signal, a first wavelength error detector for generating a wavelength error signal of an RF signal (reference optical signal) with respect to a zero-cross wavelength on the basis of a ratio between the levels of the RF signal outputted from two output waveguides of the AWG, a control circuit for locking the zero-cross wavelength to the wavelength of the RF signal in response to the wavelength error signal, and a second wavelength error detector for generating wavelength error signals of the multiplexed waves of the WDM signal by detecting signal levels of respective wavelength signals of the WDM signal outputted from each pair of output ports of the AWG.

    摘要翻译： 一种多波长同时监视电路，其能够精确地区分包括复用波长波的WDM（波分复用）​​信号的波长，并且适用于具有较大阻抗的光学集成电路。 它包括参考光源，具有对应于WDM信号的复用波之间的波长间隔的周期性中心透射波长（或交越波长）的AWG（阵列波导光栅），第一波长误差检测器，用于产生波长误差信号 基于从AWG的两个输出波导输出的RF信号的电平之间的比率，相对于零交叉波长的RF信号（参考光信号），用于将零交叉波长锁定到 响应于波长误差信号的RF信号的波长;以及第二波长误差检测器，用于通过检测从每对输出输出的WDM信号的各个波长信号的信号电平来产生WDM信号的复用波的波长误差信号 特设工作组的港口。

    Signal Block Sequence Processing Method And Signal Block Sequence Processing Apparatus
    2.
    发明申请
    Signal Block Sequence Processing Method And Signal Block Sequence Processing Apparatus 有权
    信号块序列处理方法和信号块序列处理装置

    公开(公告)号：US20110013690A1

    公开(公告)日：2011-01-20

    申请号：US12667680

    申请日：2008-07-04

    申请人： Shoukei Kobayashi ,  Mitsuhiro Teshima ,  Takehito Yamanoto ,  Osamu Ishida ,  Yoshiaki Kisaka

    发明人： Shoukei Kobayashi ,  Mitsuhiro Teshima ,  Takehito Yamanoto ,  Osamu Ishida ,  Yoshiaki Kisaka

    IPC分类号： H04B1/66

    CPC分类号： H04L12/4625 ,  H04J3/1658 ,  H04J2203/0085 ,  H04L1/0083 ,  H04L12/4633 ,  H04L25/4917 ,  H04L69/22

    摘要： The present invention provides a signal block sequence processing method. According to the method, signal block headers (Bch, Bdh) are deleted from each sequence of signal blocks (B) each composed of the signal block header indicating whether a signal block payload is a control block payload (Bc′) containing a control code is contained or a data block payload (Bd′) containing data is contained. The resultant signal blocks are formed into one group (G). Each control block payload in the group is provided with position determination information indicating the position of the control block payload in the group. The signal block payloads are rearranged in accordance with a signal block payload rearrangement rule. The rearranged signal block payloads are contained in a super-block payload (Sc), to which a super-block header (Shc) indicative of containment of control block payloads is added. The resultant super-block (S) is output.

    摘要翻译： 本发明提供一种信号块序列处理方法。 根据该方法，信号块标题（Bch，Bdh）从信号块（B）的每个序列中删除，每个信号块（B）由信号块标题组成，指示信号块有效载荷是否包含控制码 或包含数据的数据块有效载荷（Bd'）。 所得信号块形成为一组（G）。 组中的每个控制块有效载荷被提供有指示组中控制块有效载荷的位置的位置确定信息。 信号块有效载荷根据信号块有效载荷重排规则重新排列。 重新排列的信号块有效载荷被包含在超块有效载荷（Sc）中，其中添加了指示控制块有效载荷的控制块的超块头（Shc）。 输出所得到的超块（S）。

    Optical wavelength division multiplexing access system
    3.
    发明授权
    Optical wavelength division multiplexing access system 有权
    光波分复用接入系统

    公开(公告)号：US07555215B2

    公开(公告)日：2009-06-30

    申请号：US10535526

    申请日：2004-05-28

    申请人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

    发明人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

    IPC分类号： H04J14/00 ,  H04B10/08

    CPC分类号： H04J14/0294 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0283

    摘要： A dual structure for a multiplexing section extended to an OSU is obtained without adding a dynamic function, such as an optical switch, to a W-MULDEM. The W-MULDEM of an optical wavelength division multiplexing access system divides, among ports corresponding to the individual ONUs, downstream optical signals having wavelengths λd1 to λdn, which are received along a current-use optical fiber, or downstream optical signals having wavelengths λd1+Δλ to λdn+Δλ, which are received along a redundant optical fiber. The W-MULDEM also multiplexes, for the port that corresponds to the current-use optical fiber or the redundant optical fiber, upstream optical signals having wavelengths λu1 to λun or wavelengths λu1+Δλ to λun+Δλ, which are received along optical fibers corresponding to the ONUs. A wavelength difference between the downstream optical signal and the upstream optical signal that are consonant with each ONU is defined as an integer times the FSR of an AWG.

    摘要翻译： 获得扩展到OSU的复用部分的双重结构，而不向诸如光开关的动态功能添加到W-MULDEM。 光波分复用接入系统的W-MULDEM在对应于各个ONU的端口中，沿着当前使用的光纤接收波长为lambdad1至lambdadn的下行光信号，或者具有波长lambdad1 + Deltalambda到lambdadn + Deltalambda，沿冗余光纤接收。 对于与当前使用的光纤或冗余光纤对应的端口，W-MULDEM还将具有波长lambdau1至lambdaun或波长lambdau1 + Deltalambda的上行光信号复用到λun+ Deltalambda，沿着光纤对应接收 到ONU。 与每个ONU相关联的下行光信号和上行光信号之间的波长差定义为AWG的FSR的整数倍。

    Polarization scrambler and optical network using the same
    5.
    发明申请
    Polarization scrambler and optical network using the same 失效
    极化扰码器和光网络使用相同

    公开(公告)号：US20050213991A1

    公开(公告)日：2005-09-29

    申请号：US11132937

    申请日：2005-05-19

    申请人： Masamichi Fujiwara ,  Mitsuhiro Teshima ,  Noboru Takachio ,  Katsumi Iwatsuki

    发明人： Masamichi Fujiwara ,  Mitsuhiro Teshima ,  Noboru Takachio ,  Katsumi Iwatsuki

    IPC分类号： G02F1/01 ,  H04B10/2507 ,  H04B10/532 ,  H04B10/04

    CPC分类号： H04B10/2572 ,  G02F1/0136 ,  G02F2001/0139 ,  H04B10/532

    摘要： To generate light with the degree of polarization zeroed and the spread of an optical spectrum suppressed even with temporal overlapping between optical pulses each of which is polarized orthogonally to the succeeding pulse, a polarization scrambler includes an optical pulse generator that generates optical pulses with an intensity waveform repetition T/2 and an electrical field repetition period T in which the same intensity waveform is repeated every repetition period T/2 and in which phase is inverted every repetition period T/2, and an orthogonal polarization delay unit which receives each of the optical pulses, separates the optical pulse into two optical pulses with orthogonal states of polarization, and relatively shifts the temporal position of one of the two optical pulses from that of the other optical pulse by (2n−1)T/4 (n is a natural number) to generate light in which each pulse is polarized orthogonally to a succeeding pulse.

    摘要翻译： 为了产生具有归零度的光，并且即使光学脉冲之间的时间重叠也抑制光谱的扩展，每个光脉冲与后续脉冲正交地极化，偏振加扰器包括产生具有强度的光脉冲的光脉冲发生器 波形重复T / 2和电场重复周期T，其中每个重复周期T / 2重复相同的强度波形，并且每个重复周期T / 2对相位进行反相，并且正交偏振延迟单元接收每个 光脉冲将光脉冲分离成具有正交偏振态的两个光脉冲，并将两个光脉冲之一的时间位置从另一个光脉冲的时间位置相对移位（2n-1）T / 4（n为 自然数）以产生其中每个脉冲与后续脉冲正交极化的光。

    Signal block sequence processing method and signal block sequence processing apparatus
    7.
    发明授权
    Signal block sequence processing method and signal block sequence processing apparatus 有权
    信号块序列处理方法和信号块序列处理装置

    公开(公告)号：US09054894B2

    公开(公告)日：2015-06-09

    申请号：US12667680

    申请日：2008-07-04

    申请人： Shoukei Kobayashi ,  Mitsuhiro Teshima ,  Takehito Yamamoto ,  Osamu Ishida ,  Yoshiaki Kisaka

    发明人： Shoukei Kobayashi ,  Mitsuhiro Teshima ,  Takehito Yamamoto ,  Osamu Ishida ,  Yoshiaki Kisaka

    IPC分类号： H04L29/06 ,  H04L12/46 ,  H04L1/00 ,  H04J3/16 ,  H04L25/49

    CPC分类号： H04L12/4625 ,  H04J3/1658 ,  H04J2203/0085 ,  H04L1/0083 ,  H04L12/4633 ,  H04L25/4917 ,  H04L69/22

    摘要： The present invention provides a signal block sequence processing method. According to the method, signal block headers (Bch, Bdh) are deleted from each sequence of signal blocks (B) each composed of the signal block header indicating whether a signal block payload is a control block payload (Bc′) containing a control code is contained or a data block payload (Bd′) containing data is contained. The resultant signal blocks are formed into one group (G). Each control block payload in the group is provided with position determination information indicating the position of the control block payload in the group. The signal block payloads are rearranged in accordance with a signal block payload rearrangement rule. The rearranged signal block payloads are contained in a super-block payload (Sc), to which a super-block header (Shc) indicative of containment of control block payloads is added. The resultant super-block (S) is output.

    摘要翻译： 本发明提供一种信号块序列处理方法。 根据该方法，信号块标题（Bch，Bdh）从信号块（B）的每个序列中删除，每个信号块（B）由信号块标题组成，指示信号块有效载荷是否包含控制码 或包含数据的数据块有效载荷（Bd'）。 所得信号块形成为一组（G）。 组中的每个控制块有效载荷被提供有指示组中控制块有效载荷的位置的位置确定信息。 信号块有效载荷根据信号块有效载荷重排规则重新排列。 重新排列的信号块有效载荷被包含在超块有效载荷（Sc）中，其中添加了指示控制块有效载荷的控制块的超块头（Shc）。 输出所得到的超块（S）。