Apparatus and method for filtering voiceband and metering tone frequencies of a mixed voice/data signal
    11.
    发明授权
    Apparatus and method for filtering voiceband and metering tone frequencies of a mixed voice/data signal 有权
    用于过滤混合语音/数据信号的语音频带和测量音频的装置和方法

    公开(公告)号:US06728367B1

    公开(公告)日:2004-04-27

    申请号:US09521589

    申请日:2000-03-09

    申请人: Steven M. Swam

    发明人: Steven M. Swam

    IPC分类号: H04M100

    CPC分类号: H04M11/062

    摘要: An apparatus and method provide for filtering of voiceband and specified tone frequencies of a mixed voice/data signal, such as an Asymmetric Digital Subscriber Line (ADSL) signal. A lowpass filter section passes voiceband content of the mixed signal and suppresses mixed signal content having frequencies falling within a databand of the mixed signal. A bandpass filter section is coupled to or integral with the lowpass filter section and passes the specified tone frequency, such as a metering or billing tone frequency. The lowpass and bandpass filter sections exhibit a combined frequency response that provides for a stopband between the voiceband and the metering tone frequency. The bandpass filter section effectively detunes a frequency response of the lowpass filter section to provide for the stopband. The stopband preferably provides for an insertion loss of 3 dB or greater between the voiceband and the metering tone frequency, and suppresses undesirable mixed signal content having frequencies falling within the stopband. The lowpass filter section and the bandpass filter section may each be implemented to include only passive components, such as passive magnetic components.

    摘要翻译: 一种装置和方法提供对诸如非对称数字用户线(ADSL)信号的混合语音/数据信号的语音频带和指定音调频率的滤波。 低通滤波器部分传递混合信号的语音带内容,并抑制频率落在混合信号的数据库内的混合信号内容。 带通滤波器部分耦合到低通滤波器部分或与低通滤波器部分成一体,并且传递指定的音调频率,例如计量或计费音频率。 低通和带通滤波器部分呈现组合的频率响应,其提供语音频带和测光音频率之间的阻带。 带通滤波器部分有效地消除低通滤波器部分的频率响应以提供阻带。 阻带优选地在语音频带和计量乐音频率之间提供3dB或更大的插入损耗,并且抑制具有落在阻带内的频率的不期望的混合信号内容。 低通滤波器部分和带通滤波器部分可以各自被实现为仅包括无源部件,例如无源磁性部件。

    WDM Systems and Methods
    12.
    发明申请
    WDM Systems and Methods 有权
    WDM系统和方法

    公开(公告)号:US20080212967A1

    公开(公告)日:2008-09-04

    申请号:US11930248

    申请日:2007-10-31

    IPC分类号: H04B10/00

    摘要: A WDM optical system including a media converter module including a plurality of converter cards, each converter card being configured to convert a native signal into an optical signal. The system also includes a panel bracket having an opening and a plurality of fingers, and a cable management panel including a drawer having an interior space. The cable management panel includes a splitter/combiner module mounted in the interior space, and the cable management panel is positioned in the opening of the panel bracket so that a space is defined between the cable management panel and the media converter module.

    摘要翻译: 一种WDM光学系统,包括包括多个转换器卡的介质转换器模块,每个转换器卡被配置为将本机信号转换为光信号。 该系统还包括具有开口和多个指状物的面板支架,以及包括具有内部空间的抽屉的电缆管理面板。 电缆管理面板包括安装在内部空间中的分配器/组合器模块,并且电缆管理面板定位在面板支架的开口中,使得在电缆管理面板和介质转换器模块之间定义空间。

    WDM systems and methods
    13.
    发明授权
    WDM systems and methods 有权
    WDM系统和方法

    公开(公告)号:US07302149B2

    公开(公告)日:2007-11-27

    申请号:US10938417

    申请日:2004-09-09

    IPC分类号: G02B6/36

    摘要: A WDM optical system including a media converter module including a plurality of converter cards, each converter card being configured to convert a native signal into an optical signal. The system also includes a panel bracket having an opening and a plurality of fingers, and a cable management panel including a drawer having an interior space. The cable management panel includes a splitter/combiner module mounted in the interior space, and the cable management panel is positioned in the opening of the panel bracket so that a space is defined between the cable management panel and the media converter module.

    摘要翻译: 一种WDM光学系统,包括包括多个转换器卡的介质转换器模块,每个转换器卡被配置为将本机信号转换为光信号。 该系统还包括具有开口和多个指状物的面板支架,以及包括具有内部空间的抽屉的电缆管理面板。 电缆管理面板包括安装在内部空间中的分配器/组合器模块,并且电缆管理面板定位在面板支架的开口中,使得在电缆管理面板和介质转换器模块之间定义空间。