Optical transmission system
    1.
    发明申请
    Optical transmission system 审中-公开
    光传输系统

    公开(公告)号:US20070172239A1

    公开(公告)日:2007-07-26

    申请号:US11526604

    申请日:2006-09-26

    IPC分类号: H04J14/00

    摘要: It is configured to have a first optical line terminal for transmitting a video signal of a first wavelength; a second optical line terminal for transmitting a downstream data signal of a second wavelength and receiving an upstream data signal of a third wavelength; and a wavelength division multiplexer for wavelength division multiplexing the video signal and the upstream data signal and the descend data signal, where an attenuator is provided between the second optical line terminal and the wavelength division multiplexer, the attenuator having a characteristic that an attenuation amount given to the second wavelength is larger than an attenuation amount given to the third wavelength.

    摘要翻译: 它被配置为具有用于发送第一波长的视频信号的第一光线路终端; 第二光线路终端,用于发送第二波长的下行数据信号并接收第三波长的上行数据信号; 以及波分多路复用器,用于对视频信号和上行数据信号以及下降数据信号进行波分复用,其中衰减器设置在第二光线路终端与波分复用器之间,衰减器具有给定的衰减量的特性 到第二波长大于给予第三波长的衰减量。

    Information-processing apparatus and information-processing method

    公开(公告)号:US07050190B2

    公开(公告)日:2006-05-23

    申请号:US09862656

    申请日:2001-05-21

    IPC分类号: G06F3/12 G06F15/00 G06K1/00

    摘要: Disclosed is an information-processing apparatus comprising: storage means for storing application programs and data files; calculating means for activating an application program stored in the storage means to carry out predetermined processing; media drive means for recording and playing back information into and from an external recording medium; and control means which controls the media-drive means and the storage means when the external recording medium for recording an application program is mounted on the media drive means so that: when the storage means includes a remaining free storage area with a size large enough for accommodating the application program recorded in the external recording medium, the application program recorded in the external recording medium is installed in the storage means; but when the storage means includes a remaining free storage area with a size not large enough for accommodating the application program recorded in the external recording medium, on the other hand, an application program or a data file stored in the storage means is saved to the external recording medium in order to allocate a free storage area in the storage means and then the application program recorded in the external recording medium is installed in the storage means.