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    • 1. 发明申请
    • Ultra Wideband Communication System, Transmission Device Reception Device, and Replay Device Used for the Same
    • 超宽带通信系统,传输设备接收设备和用于其的重放设备
    • US20070212077A1
    • 2007-09-13
    • US11587012
    • 2005-06-10
    • Toshihiko YasueToru ShiozakiMasaru Fuse
    • Toshihiko YasueToru ShiozakiMasaru Fuse
    • H04B10/04H04B10/12
    • H04B10/5561H04B1/7163H04B10/505H04B10/508H04B10/60H04J14/02
    • 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.
    • 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。
    • 2. 发明授权
    • Wavelength division multiplex transmission system
    • 波分复用传输系统
    • US06891995B2
    • 2005-05-10
    • US10373699
    • 2003-02-27
    • Tsuyoshi IkushimaMasaru FuseToshihiko Yasue
    • Tsuyoshi IkushimaMasaru FuseToshihiko Yasue
    • H04B10/02H04B10/08H04J14/02G02B6/28H04J14/00
    • H04B10/00H04B2210/078H04J14/0221
    • 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.
    • 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。