Ultra Wideband Communication System, Transmission Device Reception Device, and Replay Device Used for the Same
    4.
    发明申请
    Ultra Wideband Communication System, Transmission Device Reception Device, and Replay Device Used for the Same 审中-公开
    超宽带通信系统,传输设备接收设备和用于其的重放设备

    公开(公告)号:US20070212077A1

    公开(公告)日:2007-09-13

    申请号:US11587012

    申请日:2005-06-10

    IPC分类号: H04B10/04 H04B10/12

    摘要: The ultra wideband communication system comprises: a pulse generation section for generating a pulse signal based on a data signal; a first optical phase modulation section for performing optical phase modulation in accordance with the pulse signal, and outputting a resultant signal as an optical pulse signal; an optical transmission path for propagating the optical pulse signal; a template generation section for outputting a template signal; a second optical phase modulation section for performing optical phase modulation on the optical pulse signal in accordance with the template signal, and outputting a resultant signal as an optical phase demodulation signal; an optical phase intensity conversion section for converting information about an optical phase of the optical phase demodulation signal into information about an optical intensity thereof, and outputting a resultant signal as an optical correlation signal; an optical-electrical conversion section for performing optical-electrical conversion on the optical correlation signal, and outputting a resultant signal as a correlation signal; and a signal identification section for identifying the correlation signal outputted from the optical-electrical conversion section, thereby detecting the data signal.

    摘要翻译: 超宽带通信系统包括:脉冲发生部分,用于基于数据信号产生脉冲信号; 第一光相位调制部分,用于根据脉冲信号进行光相位调制,并输出结果信号作为光脉冲信号; 用于传播光脉冲信号的光传输路径; 模板生成部,其输出模板信号; 第二光相位调制部分,用于根据模板信号对光脉冲信号进行光相位调制,并输出合成信号作为光相位解调信号; 光相位强度转换部分,用于将关于光相位解调信号的光相位的信息转换成关于其光强度的信息,并输出所得信号作为光相关信号; 光电转换部,用于对所述光学相关信号进行光电转换,并输出合成信号作为相关信号; 以及信号识别部分,用于识别从光电转换部分输出的相关信号,从而检测数据信号。

    Wavelength division multiplex transmission system
    5.
    发明授权
    Wavelength division multiplex transmission system 失效
    波分复用传输系统

    公开(公告)号:US06891995B2

    公开(公告)日:2005-05-10

    申请号:US10373699

    申请日:2003-02-27

    摘要: A first transmitting section frequency-multiplexes a data signal and a monitor signal, and then converts the resultant signal to an optical signal for output. A first receiving section converts the optical signal transmitted via a first optical transmission path and a wavelength demultiplexer into an electrical signal, and then extracts the monitor signal. A difference detector compares a monitor signal level with a predetermined reference level, and then outputs wavelength information to a second optical transmission path. Based on the wavelength information transmitted via the second optical transmission path, a first wavelength controller adjusts the wavelength of the optical signal for stabilization at a predetermined wavelength. Thus, it is possible to achieve a wavelength division multiplex transmission system capable of controlling the wavelength of the optical signal at low cost.

    摘要翻译: 第一发送部分对数据信号和监视信号进行频率复用,然后将得到的信号转换成光信号进行输出。 第一接收部分将经由第一光传输路径发送的光信号和波分解复用器转换为电信号,然后提取监视信号。 差分检测器将监视信号电平与预定参考电平进行比较,然后将波长信息输出到第二光传输路径。 基于经由第二光传输路径传输的波长信息,第一波长控制器调整光信号的波长以在预定波长下稳定。 因此,可以实现能够以低成本控制光信号的波长的波分复用传输系统。

    Optical switching system
    6.
    发明授权
    Optical switching system 失效
    光交换系统

    公开(公告)号:US06834135B2

    公开(公告)日:2004-12-21

    申请号:US10723636

    申请日:2003-11-26

    IPC分类号: G02B626

    摘要: An optical switching system that switches the output port of an optical signal as indicated by address information (a label) that is contained in optical data packets constituting the optical signal. The optical switching system reads the address information by detecting the electric power level of a label signal that has been subjected to an optical angular modulation, passed through an optical filter and been subjected to an optical detection.

    摘要翻译: 如由包含在构成光信号的光数据分组中的地址信息(标号)所示,切换光信号的输出端口的光切换系统。 光开关系统通过检测经过光角度调制的标签信号的电功率电平,通过滤光器并进行光学检测来读取地址信息。

    Optical transmission system for performing communication using a plurality of communication lines
    7.
    发明授权
    Optical transmission system for performing communication using a plurality of communication lines 失效
    用于使用多条通信线进行通信的光传输系统

    公开(公告)号:US07236701B2

    公开(公告)日:2007-06-26

    申请号:US10648428

    申请日:2003-08-27

    IPC分类号: H04J4/00 H04J14/00

    摘要: The present invention provides a low-cost optical transmission system using a plurality of subscriber lines which is capable of efficiently utilizing an optical transmission path. A communication status observing section 116 in a transmitting device 1 classifies subscribers into a plurality of groups based on a communication status at each subscriber end, and outputs constellation level information and level information which are different for each group. For each constant cycle, a modulation control section 117 and a gain control section 118 respectively set a QAM constellation level and a signal level which are different for each group and used in a basic modulating section 103.

    摘要翻译: 本发明提供一种使用多个用户线路的低成本光传输系统,其能够有效地利用光传输路径。 发送设备1中的通信状态观察部分116基于每个用户端的通信状态将用户分为多个组,并且输出对于每个组不同的星座级别信息和级别信息。 对于每个恒定周期,调制控制部分117和增益控制部分118分别设置在基本调制部分103中用于每个组并且用于基本调制部分103的QAM星座电平和信号电平。

    Optical transmission system, and trasmitter, receiver and signal level adjustment method for use therein
    8.
    发明申请
    Optical transmission system, and trasmitter, receiver and signal level adjustment method for use therein 审中-公开
    光传输系统及其中使用的传输,接收和信号电平调整方法

    公开(公告)号:US20050265730A1

    公开(公告)日:2005-12-01

    申请号:US10524675

    申请日:2004-06-11

    摘要: In a transmitter (11), a peak detection section (104) detects a peak factor of a frequency division multiplexed signal which is output from a frequency division multiplex section (103). A spurious calculation section (105) instructs a gain adjustment section (106) to adjust the signal level of the frequency division multiplexed signal so that the level of spurious components (e.g., adjacent channel leakage power ratio (ACLR)) is equal to or less than a predetermined level, based on the peak factor.

    摘要翻译: 在发送器(11)中,峰值检测部(104)检测从频分复用部(103)输出的频分复用信号的峰值因数。 伪计算部(105)指示增益调整部(106)调整频分复用信号的信号电平,使得杂散分量的电平(例如相邻信道泄漏功率比(ACLR))等于或小于 基于峰值因子而不是预定水平。