利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.022 秒)

    Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
    1.
    发明授权
    Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus 失效

    公开(公告)号：US07079771B2

    公开(公告)日：2006-07-18

    申请号：US10272995

    申请日：2002-10-18

    申请人： Kazuo Yamane ,  Takashi Tsuda ,  Yumiko Kawasaki ,  Satoru Okano

    发明人： Kazuo Yamane ,  Takashi Tsuda ,  Yumiko Kawasaki ,  Satoru Okano

    IPC分类号： H04J14/02 ,  H04B10/04 ,  H01S3/00

    CPC分类号： H04J14/02 ,  H04B10/506 ,  H04B10/564 ,  H04B10/572

    摘要： The invention provides a wavelength multiplexing transmission apparatus includes a plurality of optical signal outputting sections for outputting optical signals having different wavelengths from each other, and a wavelength multiplexing section for wavelength multiplexing the optical signals outputted from the optical signal outputting sections and sending out a resulting optical signal. Each of the optical signal outputting sections includes a transmission light source driven by an electric signal for outputting an optical signal of a predetermined wavelength, and a wavelength filter capable of passing therethrough and sending out only an optical signal of the predetermined wavelength to be outputted from the transmission light source to prevent a wavelength drift of the optical signal outputted from the transmission light source. A variation of the wavelength of the transmission light source is detected, and the transmission light source is shut down in order to prevent otherwise possible crosstalk with another channel and prevent a further influence of the same.

    Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
    2.
    发明授权
    Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus 失效
    波长复用发送装置和波长解复用接收装置

    公开(公告)号：US06295147B1

    公开(公告)日：2001-09-25

    申请号：US09115914

    申请日：1998-07-15

    申请人： Kazuo Yamane ,  Takashi Tsuda ,  Yumiko Kawasaki ,  Satoru Okano

    发明人： Kazuo Yamane ,  Takashi Tsuda ,  Yumiko Kawasaki ,  Satoru Okano

    IPC分类号： H04J1402

    CPC分类号： H04J14/02 ,  H04B10/506 ,  H04B10/564 ,  H04B10/572

    摘要： The invention provides a wavelength multiplexing transmission apparatus includes a plurality of optical signal outputting sections for outputting optical signals having different wavelengths from each other, and a wavelength multiplexing section for wavelength multiplexing the optical signals outputted from the optical signal outputting sections and sending out a resulting optical signal. Each of the optical signal outputting sections includes a transmission light source driven by an electric signal for outputting an optical signal of a predetermined wavelength, and a wavelength filter capable of passing therethrough and sending out only an optical signal of the predetermined wavelength to be outputted from the transmission light source to prevent a wavelength drift of the optical signal outputted from the transmission light source. A variation of the wavelength of the transmission light source is detected, and the transmission light source is shut down in order to prevent otherwise possible crosstalk with another channel and prevent a further influence of the same.

    摘要翻译： 本发明提供了一种波长复用传输装置，包括：多个光信号输出部分，用于输出具有不同波长的光信号;以及波长多路复用部分，用于对从光信号输出部分输出的光信号进行波长多路复用， 光信号。 每个光信号输出部分包括由用于输出预定波长的光信号的电信号驱动的透射光源和能够通过其的波长滤光器，并且仅发出预定波长的光信号以从 传输光源，以防止从传输光源输出的光信号的波长漂移。 检测发送光源的波长的变化，并且关闭发送光源，以防止与另一个信道的可能的串扰，并防止其进一步的影响。

    Optical amplifier and optical communication system having the optical amplifier
    3.
    发明授权
    Optical amplifier and optical communication system having the optical amplifier 失效
    具有光放大器的光放大器和光通信系统

    公开(公告)号：US06288836B1

    公开(公告)日：2001-09-11

    申请号：US09040323

    申请日：1998-03-18

    申请人： Yumiko Kawasaki ,  Satoru Okano ,  Kazuo Yamane ,  Hiroshi Nishimoto ,  Takashi Tsuda

    发明人： Yumiko Kawasaki ,  Satoru Okano ,  Kazuo Yamane ,  Hiroshi Nishimoto ,  Takashi Tsuda

    IPC分类号： G01J328

    CPC分类号： H04B10/2935 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1301 ,  H04B10/2912 ,  H04B10/2942

    摘要： The present invention relates to an optical amplifier and an optical communication system applied to WDM (wavelength division multiplexing). The optical amplifier includes an optical amplifying medium to which WDM signal light obtained by wavelength division multiplexing a plurality of optical signals having different wavelengths is supplied, a pumping unit for pumping the optical amplifying medium such that the medium gives a gain to the WDM signal light, a feedback loop for controlling the pumping unit so that the gain is maintained constant, and an optical attenuator for giving a variable attenuation to the WDM signal light. Through the structure of the present invention, it becomes possible to provide an optical amplifier which can maintain constant the optical output level per channel of WDM and can maintain the gain characteristic constant.

    摘要翻译： 本发明涉及一种应用于WDM（波分复用）​​的光放大器和光通信系统。 该光放大器包括一个光放大介质，通过波分多路复用多个具有不同波长的光信号获得的WDM信号光，一个泵浦单元，用于泵浦光放大介质，使得介质给予WDM信号光增益 ，用于控制泵送单元以使增益保持恒定的反馈回路，以及用于向WDM信号光提供可变衰减的光衰减器。 通过本发明的结构，可以提供一种能够维持WDM每通道的光输出电平恒定并且可以保持增益特性恒定的光放大器。

    Auxiliary-signal transmission system
    4.
    发明授权
    Auxiliary-signal transmission system 失效
    辅助信号传输系统

    公开(公告)号：US5798857A

    公开(公告)日：1998-08-25

    申请号：US786692

    申请日：1997-01-22

    申请人： Yuji Tamura ,  Hiroyuki Itou ,  Tsukasa Takahashi ,  Michikazu Shima ,  Yumiko Kawasaki ,  Kazuo Yamane

    发明人： Yuji Tamura ,  Hiroyuki Itou ,  Tsukasa Takahashi ,  Michikazu Shima ,  Yumiko Kawasaki ,  Kazuo Yamane

    IPC分类号： H04B10/077 ,  H04B10/29 ,  H04B10/291 ,  H04B10/516 ,  H04B10/61 ,  H04B10/06

    CPC分类号： H04B10/291 ,  H04B10/077 ,  H04B10/2912 ,  H04B10/2931 ,  H04B2210/078

    摘要： Spontaneous emission occurring in association with direct optical amplification using an erbium-doped optical fiber is modulated with an auxiliary signal, such as a supervisory signal, for transmission of the auxiliary signal. In a first aspect of the invention, the output of an optical amplifier is passed through a variable optical band-pass filter whose transmission characteristic is varied in accordance with the auxiliary signal, to modulate the spontaneous emission component contained in the optical amplifier output. In a second aspect of the invention, the output of the optical amplifier is separated by an optical branching device into a main optical signal and part of the spontaneous emission. The separated spontaneous emission component is modulated by being passed through a variable optical band-pass filter whose transmission characteristic is varied in accordance with the auxiliary signal, and then, the modulated spontaneous emission component is wavelength-division multiplexed with the main optical signal.

    摘要翻译： 使用掺铒光纤与直接光放大相关联发生的自发发射用辅助信号（例如监控信号）进行调制，用于传输辅助信号。 在本发明的第一方面中，光放大器的输出通过可变光带通滤波器，其传输特性根据辅助信号而变化，以调制光放大器输出中包含的自发发射分量。 在本发明的第二方面中，光放大器的输出由光分支装置分离为主光信号和部分自发发射。 分离的自发发射分量通过通过可变光带通滤波器进行调制，该可变光带通滤波器的传输特性根据辅助信号而变化，然后调制的自发发射分量与主光信号进行波分复用。

    METHOD FOR PRODUCING ALCOHOL-FREE BEER-TASTE SPARKLING BEVERAGE HAVING FRUITY AROMA IMPARTED THERETO WITH REDUCED OFF FLAVOR
    5.
    发明申请
    METHOD FOR PRODUCING ALCOHOL-FREE BEER-TASTE SPARKLING BEVERAGE HAVING FRUITY AROMA IMPARTED THERETO WITH REDUCED OFF FLAVOR 审中-公开
    生产无酒精啤酒泡沫饮料的方法，其具有减少挥发油的透明度的AROMA

    公开(公告)号：US20140220222A1

    公开(公告)日：2014-08-07

    申请号：US14239490

    申请日：2012-08-13

    申请人： Atsushi Murakami ,  Yoshimi Oku ,  Yukimasa Owa ,  Yumiko Kawasaki

    发明人： Atsushi Murakami ,  Yoshimi Oku ,  Yukimasa Owa ,  Yumiko Kawasaki

    IPC分类号： A23L2/56 ,  A23L2/38

    CPC分类号： A23L2/56 ,  A23L2/38 ,  A23L2/54 ,  C12C3/04 ,  C12C12/04

    摘要： An object of the present invention is to provide a method for producing an alcohol-free beer-taste sparkling beverage imparted with a fruity aroma and a reduced off-flavor; and an alcohol-free beer-taste sparkling beverage imparted with a fruity aroma and a reduced off-flavor produced by the aforesaid production method. “The method for producing an alcohol-free beer-taste sparkling beverage imparted with a fruity aroma and a reduced off-flavor” in the present invention is characterized by use of a hop or a hop component stored and aged in the state of being in contact with air as a hop or a hop component used during a raw material liquid-boiling step, or adjustment of the contents of myrcene, linalool, and nerol in the beer-taste sparkling beverage so as to satisfy five particular numerical ranges by boiling the hop or the hop component in a raw material liquid.

    摘要翻译： 本发明的目的是提供一种赋予水果香味和减少异味的无酒精啤酒味发泡饮料的方法; 以及赋予水果香味的无酒精啤酒味的起泡饮料和通过上述生产方法产生的减少的异味。 本发明中“生产具有果香香味和减少异味的无酒精啤酒味的起泡饮料的方法”的特征在于使用储存和老化的啤酒花或啤酒花组分处于 在原料液体沸腾步骤中使用的啤酒花或啤酒花组分与空气接触，或调节啤酒味发泡饮料中的月桂烯，芳樟醇和橙花醇的含量，以便通过煮沸来满足五个特定的数值范围 啤酒花或啤酒花组分。

    Optical transmission system and dispersion compensator
    6.
    发明授权
    Optical transmission system and dispersion compensator 失效
    光传输系统和色散补偿器

    公开(公告)号：US07376361B2

    公开(公告)日：2008-05-20

    申请号：US11523064

    申请日：2006-09-19

    申请人： Akira Miyauchi ,  Kazuo Yamane ,  Yumiko Kawasaki ,  Satoru Okano

    发明人： Akira Miyauchi ,  Kazuo Yamane ,  Yumiko Kawasaki ,  Satoru Okano

    IPC分类号： H04B10/18

    CPC分类号： H04B10/25137 ,  H04B10/25133 ,  H04B2210/252

    摘要： In an optical transmission system comprising a transmitter, a receiver, and a transmission line that connects the transmitter and the receiver, a dispersion compensator is disposed in the receiver. The transmitter comprises an E/O (electro-optical signal converter) and a post-amplifier. An optical signal that has been RZ-coded is supplied to the E/O. The transmitter pre-chirps the optical signal. The pre-chirp is performed by red-chirp of which the value of the chirping parameter α is positive. When the pre-chirp is performed, the non-linear effect of the optical signal on the transmission line can be canceled. In addition, with the RZ coded signal, the inter-symbol interference can be alleviated. Thus, the total dispersion amount of the dispersion compensator can be suppressed. In addition, the power of the optical output can be increased.

    摘要翻译： 在包括发射机，接收机和连接发射机和接收机的传输线的光传输系统中，在接收机中设置色散补偿器。 发射机包括E / O（电光信号转换器）和后置放大器。 经RZ编码的光信号被提供给E / O。 发射机预啁啾光信号。 前线啁啾由啁啾声执行，啁啾参数α的值为正。 当进行前啁啾时，可以消除光信号在传输线上的非线性效应。 另外，利用RZ编码信号，可以减轻符号间干扰。 因此，可以抑制色散补偿器的总色散量。 另外，可以提高光输出的功率。

    Optical transmission system using in-line amplifiers
    7.
    发明申请
    Optical transmission system using in-line amplifiers 有权

    公开(公告)号：US20060285856A1

    公开(公告)日：2006-12-21

    申请号：US11508949

    申请日：2006-08-24

    申请人： Akira Miyauchi ,  Kazuo Yamane ,  Yumiko Kawasaki ,  Satoru Okano

    发明人： Akira Miyauchi ,  Kazuo Yamane ,  Yumiko Kawasaki ,  Satoru Okano

    IPC分类号： H04B10/12

    CPC分类号： H04B10/25137 ,  H01L31/14 ,  H04B10/2543 ,  H04B2210/252 ,  H04B2210/256

    摘要： In a system connecting a transmitter and a receiver using transmission paths and repeaters (in-line amplifiers), red chirping whose α parameter is performed for an optical signal on a transmitting side. Each of the repeaters includes a dispersion-compensator for compensating the amount of dispersion on a preceding transmission path. The amount of dispersion compensation of the dispersion-compensator included in the transmitter is made constant. The dispersion-compensator included in the receiver is arranged in order to compensate the amount of dispersion on a preceding transmission path. A spread of a pulse width on a transmission path can be efficiently compensated by using the compensation capability of the dispersion-compensators and the red chirping on the transmitting side.

    Method for optical fiber communication, and device and system for use in carrying out the method
    8.
    发明授权
    Method for optical fiber communication, and device and system for use in carrying out the method 失效
    光纤通信方法，以及用于实施该方法的设备和系统

    公开(公告)号：US07006769B1

    公开(公告)日：2006-02-28

    申请号：US09256079

    申请日：1999-02-24

    申请人： Yumiko Kawasaki ,  Kazuo Yamane ,  Takashi Tsuda ,  Satoru Okano

    发明人： Yumiko Kawasaki ,  Kazuo Yamane ,  Takashi Tsuda ,  Satoru Okano

    IPC分类号： H04B10/00 ,  H04B10/12

    CPC分类号： H04B10/2525 ,  G02F1/0121 ,  G02F1/0123 ,  G02F2203/25 ,  H04B10/0775 ,  H04B10/07953 ,  H04B10/0799 ,  H04B2210/077 ,  H04B2210/252 ,  H04B2210/254

    摘要： The invention, relates to a method for optical fiber communication. An optical signal having chirping determined by a chirp parameter is output to an optical fiber transmission line. The optical signal transmitted by the optical fiber transmission line is converted into an electrical signal. A bit error of the electrical signal is detected. Then, the chirp parameter is controlled so that the bit error detected above is reduced. According to this method, the chirp parameter is controlled so that the bit error detected is reduced. Accordingly, a chirping occurring in the optical fiber transmission line can be suppressed by the chirping of the optical signal to be output to the optical fiber transmission line, thereby compensating for chromatic dispersion and nonlinearity.

    摘要翻译： 本发明涉及一种光纤通信方法。 将具有由啁啾参数确定的啁啾的光信号输出到光纤传输线。 由光纤传输线传输的光信号被转换为电信号。 检测到电信号的位错误。 然后，控制啁啾参数，使得上面检测到的位错误减少。 根据该方法，控制啁啾参数，使得检测到的位错误减少。 因此，可以通过对输出到光纤传输线的光信号的线性调频来抑制在光纤传输线中发生的线性调频，从而补偿色散和非线性。