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13 条记录 (耗时 0.023 秒)

    Signal communications system and method for noisy links
    1.
    发明授权
    Signal communications system and method for noisy links 有权
    信号通信系统和噪声链路的方法

    公开(公告)号：US07505531B1

    公开(公告)日：2009-03-17

    申请号：US09528111

    申请日：2000-03-17

    申请人： Eliezer Pasternak ,  Ladd El Wardani

    发明人： Eliezer Pasternak ,  Ladd El Wardani

    IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

    CPC分类号： H04L1/0065 ,  H04L1/0041 ,  H04L1/0054

    摘要： A system and method for communicating signals over a noisy channel is provided wherein an input signal may be sampled and modulated to make the signal more noise insensitive. In accordance with one embodiment, of the invention, an signal code modulation (SCM) scheme may be used wherein digital and analog signals representing the original signal are generated. In another embodiment, an original modulated signal may be demodulated and then remodulated using a more robust modulation scheme. The system may be used to a variety of applications including wireless internet access.

    摘要翻译： 提供了一种用于在噪声通道上传送信号的系统和方法，其中可以对输入信号进行采样和调制以使信号更加不敏感。 根据本发明的一个实施例，可以使用信号编码调制（SCM）方案，其中产生表示原始信号的数字和模拟信号。 在另一个实施例中，可以解调原始调制信号，然后使用更鲁棒的调制方案进行再调制。 该系统可用于各种应用，包括无线互联网接入。

    Signal selector and combiner for broadband content distribution
    5.
    发明授权
    Signal selector and combiner for broadband content distribution 有权

    公开(公告)号：US07130576B1

    公开(公告)日：2006-10-31

    申请号：US10289011

    申请日：2002-11-06

    申请人： Itzhak Gurantz ,  Ladd El Wardani ,  Michael Landry

    发明人： Itzhak Gurantz ,  Ladd El Wardani ,  Michael Landry

    IPC分类号： H04H1/00

    CPC分类号： H04H40/90

    摘要： In a satellite receiving system, program channels are selected from one or more broadband signals and combined with other selected channels and transmitted from a first unit, for example an outdoor unit, to a second unit, for example a gateway, server, or set-top box, using a single cable. Channels can be selected by digitizing the broadband signal then digitally filtering to isolate the desired channels. The outputs of several LNBs can be selected and combined into one signal. Multiple set-top boxes can receive independent signals over a single cable from the outdoor unit.

    Broadband network for coaxial cable using multi-carrier modulation
    6.
    发明授权
    Broadband network for coaxial cable using multi-carrier modulation 有权
    宽带网同轴电缆采用多载波调制

    公开(公告)号：US07573822B1

    公开(公告)日：2009-08-11

    申请号：US11938770

    申请日：2007-11-12

    申请人： Anton Monk ,  Brett Bernath ,  Itzhak Gurantz ,  Ladd El Wardani ,  Ron Porat

    发明人： Anton Monk ,  Brett Bernath ,  Itzhak Gurantz ,  Ladd El Wardani ,  Ron Porat

    IPC分类号： G06F11/00 ,  H04J11/00 ,  H04L27/28

    CPC分类号： H04L5/0046 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1438 ,  H04L25/0226 ,  H04L27/0006 ,  H04N7/104

    摘要： A broadband local area data network uses coaxial cable wiring for interconnection of terminal devices. Orthogonal frequency division multiplexing (OFDM) with bit loading is used to overcome channel impairments and provide a path for terminal devices to transmit to and receive from other terminal devices. Probe messages are sent between devices to characterize the communication channel and determine optimum bit loading. The data network shares the cable spectrum with other services and uses frequency bands not used by other services. Adaptive power control can be used to maintain signal to noise ratio in a communication between terminal devices. Frequency coordination can be used to avoid interference between the LAN communications and other services transmitted on the cable.

    摘要翻译： 宽带局域网数据网络使用同轴电缆布线来连接终端设备。 使用具有比特加载的正交频分复用（OFDM）来克服信道损伤，并为终端设备发送和接收其他终端设备提供路径。 在设备之间发送探测消息以表征通信信道，并确定最佳位加载。 数据网络与其他业务共享电缆频谱，并使用其他业务未使用的频段。 自适应功率控制可用于在终端设备之间的通信中保持信噪比。 可以使用频率协调来避免LAN通信与电缆上传输的其他业务之间的干扰。

    Signal selector and combiner system for broadband content distribution
    7.
    发明授权
    Signal selector and combiner system for broadband content distribution 有权
    信号选择器和组合器系统，用于宽带内容分发

    公开(公告)号：US07522875B1

    公开(公告)日：2009-04-21

    申请号：US11027999

    申请日：2004-12-31

    申请人： Itzhak Gurantz ,  Ladd El Wardani ,  Michael Landry

    发明人： Itzhak Gurantz ,  Ladd El Wardani ,  Michael Landry

    IPC分类号： H04H1/00

    CPC分类号： H04H40/90

    摘要： In a satellite receiving system, program channels are selected from one or more broadband signals and combined with other selected channels and transmitted from a first unit, for example an outdoor unit, to a second unit, for example a gateway, server, or set-top box, using a single cable. Channels can be selected by digitizing the broadband signal then digitally filtering to isolate the desired channels. The outputs of several LNBs can be selected and combined into one signal. Multiple set-top boxes can receive independent signals over a single cable from the outdoor unit.

    摘要翻译： 在卫星接收系统中，从一个或多个宽带信号中选择节目频道，并与其它所选择的频道组合，并从第一单元（例如室外单元）发送到第二单元，例如网关，服务器或机顶盒， 顶盒，使用单根电缆。 可以通过数字化宽带信号然后进行数字滤波来选择信道以隔离所需的信道。 可以选择多个LNB的输出并将其组合成一个信号。 多台机顶盒可以通过室外机的单根电缆接收独立的信号。

    Broadband network for coaxial cable using multi-carrier modulation
    9.
    发明授权
    Broadband network for coaxial cable using multi-carrier modulation 有权
    宽带网同轴电缆采用多载波调制

    公开(公告)号：US07295518B1

    公开(公告)日：2007-11-13

    申请号：US10322834

    申请日：2002-12-18

    申请人： Anton Monk ,  Brett Bernath ,  Itzhak Gurantz ,  Ladd El Wardani ,  Ron Porat

    发明人： Anton Monk ,  Brett Bernath ,  Itzhak Gurantz ,  Ladd El Wardani ,  Ron Porat

    IPC分类号： H04L12/26 ,  H04N7/173

    CPC分类号： H04L5/0046 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1438 ,  H04L25/0226 ,  H04L27/0006 ,  H04N7/104

    摘要： A broadband local area data network uses coaxial cable wiring for interconnection of terminal devices. Orthogonal frequency division multiplexing (OFDM) with bit loading is used to overcome channel impairments and provide a path for terminal devices to transmit to and receive from other terminal devices. Probe messages are sent between devices to characterize the communication channel and determine optimum bit loading. The data network shares the cable spectrum with other services and uses frequency bands not used by other services. Adaptive power control can be used to maintain signal to noise ratio in a communication between terminal devices. Frequency coordination can be used to avoid interference between the LAN communications and other services transmitted on the cable.

    摘要翻译： 宽带局域网数据网络使用同轴电缆布线来连接终端设备。 使用具有比特加载的正交频分复用（OFDM）来克服信道损伤，并为终端设备发送和从其他终端设备接收路径。 在设备之间发送探测消息以表征通信信道，并确定最佳位加载。 数据网络与其他业务共享电缆频谱，并使用其他业务未使用的频段。 自适应功率控制可用于在终端设备之间的通信中保持信噪比。 可以使用频率协调来避免LAN通信与电缆上传输的其他业务之间的干扰。