System and method for providing power over a home phone line network

    公开(公告)号:US06862353B2

    公开(公告)日:2005-03-01

    申请号:US09840297

    申请日:2001-04-24

    IPC分类号: H04M19/08 H04M1/00

    CPC分类号: H04M19/08

    摘要: A system and method is provided for supplying power over a home phone line network in a manner that is interoperable with other voice and data services operating on the same network. The system includes a power source coupled to the home phone line network. The power source includes an AC signal generator that generates an AC signal at a selected frequency. The power source also includes a band pass filter for removing unwanted harmonics from the AC signal, thereby generating a filtered AC signal for powering one or more devices on the home phone line network. One or more devices attached to the home phone line network, such as a telephone adapter or telephone, receives the filtered AC signal. Each device comprises a second band pass filter and an AC/DC converter. The second band pass filter passes the filtered AC signal to the AC/DC converter and prevents the introduction of undesired harmonics onto the home phone line network from the AC/DC converter. The AC/DC converter converts the filtered AC signal to a DC signal used for powering the device.

    System and method for providing power over a home phone line network

    公开(公告)号:US07046796B2

    公开(公告)日:2006-05-16

    申请号:US11034182

    申请日:2005-01-13

    IPC分类号: H04M19/08

    CPC分类号: H04M19/08

    摘要: A system and method is provided for supplying power over a home phone line network in a manner that is interoperable with other voice and data services operating on the same network. The system includes a power source coupled to the home phone line network. The power source includes an AC signal generator that generates an AC signal at a selected frequency. The power source also includes a band pass filter for removing unwanted harmonics from the AC signal, thereby generating a filtered AC signal for powering one or more devices on the home phone line network. One or more devices attached to the home phone line network, such as a telephone adapter or telephone, receives the filtered AC signal. Each device comprises a second band pass filter and an AC/DC converter. The second band pass filter passes the filtered AC signal to the AC/DC converter and prevents the introduction of undesired harmonics onto the home phone line network from the AC/DC converter. The AC/DC converter converts the filtered AC signal to a DC signal used for powering the device.

    Voice gateway with voice synchronization
    6.
    发明授权
    Voice gateway with voice synchronization 有权
    具有语音同步功能的语音网关

    公开(公告)号:US06985492B1

    公开(公告)日:2006-01-10

    申请号:US09706595

    申请日:2000-11-03

    IPC分类号: H04L12/54

    摘要: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译: 网络网关被配置为通过混合光纤同轴网络和电缆调制解调器终端系统来促进多个近端数据与具有远端数据终端设备的电话设备之间的在线和离线双向通信。 所描述的网络网关组合了QAM接收机,发射机,DOCSIS MAC,CPU,语音和音频处理器,以太网MAC和USB控制器,以提供高性能和鲁棒的操作。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。

    Method and system for stereo echo cancellation for VoIP communication systems
    7.
    发明授权
    Method and system for stereo echo cancellation for VoIP communication systems 有权
    用于VoIP通信系统的立体声回波消除的方法和系统

    公开(公告)号:US07747002B1

    公开(公告)日:2010-06-29

    申请号:US09703264

    申请日:2000-10-31

    IPC分类号: H04M9/08

    摘要: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaption is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译: 本发明的示例性实施例涉及一种在存在已知次要音频信号的情况下取消线路回声的方法和系统。 滤波器适应在已知的辅助音频源(例如计算机游戏的声音,音乐信号或其他辅助音频源)的存在下被启用,否则会阻止由于明显的双重通话条件引起的回声消除。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。

    Cable modem system with sample and packet synchronization
    9.
    发明授权
    Cable modem system with sample and packet synchronization 有权
    有线调制解调器系统,带有采样和分组同步

    公开(公告)号:US06763032B1

    公开(公告)日:2004-07-13

    申请号:US09501892

    申请日:2000-02-10

    IPC分类号: H04B7212

    摘要: A method for communicating information is disclosed wherein a time slot is allocated in a time division multiple access system for a transmission from a subscriber to a headend. Synchronization of a clock of the subscriber with respect to a clock of the headend is enhanced using a message transmitted from the headend to the subscriber which is indicative of an error in a subscriber transmission time with respect to the time slot. A feedback loop process is used to determine at least one of fractional symbol timing correction and carrier phase correction of a transmission from the subscriber to the headend. Filter coefficients are generated at the headend from a ranging signal transmitted from the subscriber to the headend and transmitting the filter coefficients from the headend to the subscriber, the filter coefficients being used by the subscriber to compensate for noise in a transmission from the subscriber to the headend.

    摘要翻译: 公开了一种用于传送信息的方法,其中在用于从订户到头端的传输的时分多址系统中分配时隙。 使用从前端发送到用户的消息来增强用户相对于前端的时钟的时钟的同步,该消息指示相对于时隙的用户传输时间中的错误。 反馈回路过程用于确定从订户到头端的传输的分数符号定时校正和载波相位校正中的至少一个。 滤波器系数在头端从从用户发送到头端的测距信号产生,并且将滤波器系数从头端发送到用户,滤波器系数由用户使用以补偿从用户到用户的传输中的噪声 头端

    Gateway with voice
    10.
    发明授权
    Gateway with voice 有权
    网关与声音

    公开(公告)号:US08254404B2

    公开(公告)日:2012-08-28

    申请号:US12580764

    申请日:2009-10-16

    IPC分类号: H04L12/54

    摘要: In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.

    摘要翻译: 在本发明的一个方面,网络网关被配置为经由混合光纤同轴网络和电缆调制解调器来促进多个近端数据与具有远端数据终端设备的电话设备之间的在线和离线双向通信 终止系统。 所描述的网络网关组合了QAM接收机,发射机,DOCSIS MAC,CPU,语音和音频处理器,以太网MAC和USB控制器,以提供高性能和鲁棒的操作。