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    Apparatus for Insertion of Local Signals into a CATV Output
    1.
    发明申请
    Apparatus for Insertion of Local Signals into a CATV Output 审中-公开
    将本地信号插入CATV输出的装置

    公开(公告)号：US20120246673A1

    公开(公告)日：2012-09-27

    申请号：US13366695

    申请日：2012-02-06

    Applicant: Sumit Kumar ,  Colin Howlett

    Inventor： Sumit Kumar ,  Colin Howlett

    IPC: H04N21/80

    CPC classification number: H04N7/104 ,  H04N21/44016 ,  H04N21/6118 ,  H04N21/6338

    Abstract: Apparatus for switching and combining based on external signaling is provided wherein a locally generated modulated carrier (or carriers) is inserted into a CATV system between the cable head end and video decoding/rendering device without requiring unused channels or the loss of any incoming services. An RF switch is controlled by a switch control processor based on knowledge of the video decoding/rendering device current tuning requirements to select between the full spectrum coming from the CATV system the locally generated and inserted channel. Current tuning requirements for the attached video decoding/rendering device may be input to the switch control processor from the video decoding/rendering device itself or from a separate device with knowledge of the current service requirements.

    Abstract translation: 提供了用于基于外部信令的切换和组合的装置，其中本地生成的调制载波（或载波）被插入到电缆头端和视频解码/再现装置之间的CATV系统中，而不需要未使用的信道或丢失任何传入的服务。 基于视频解码/渲染设备当前调谐要求的知识，由开关控制处理器控制RF开关，以在来自CATV系统的全频谱之间选择本地生成和插入的频道。 附加视频解码/再现设备的当前调谐要求可以从视频解码/再现设备本身或从当前服务需求知识的单独设备输入到交换机控制处理器。

    Multiple reduced-bandwidth processing paths to achieve a full and continuous output band for multiple channel CATV upconversion
    2.
    发明授权
    Multiple reduced-bandwidth processing paths to achieve a full and continuous output band for multiple channel CATV upconversion 有权
    多个减少带宽的处理路径，实现多通道CATV上变频的全连续输出频带

    公开(公告)号：US08839331B2

    公开(公告)日：2014-09-16

    申请号：US13017078

    申请日：2011-01-31

    Applicant: Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    Inventor： Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    IPC: H04N7/173 ,  H04N7/16 ,  H04N5/40

    CPC classification number: H04N5/40 ,  H04N21/6118

    Abstract: A method of channel processing is provided wherein multiple reduced-bandwidth “processing blocks” may be combined at RF to allow for the continuous and flexible placement of multiple-channels across the full or partial CATV output band. Each reduced-bandwidth processing block is associated with a fixed-frequency upconversion. In order to allow for continuous agile channel placement, the processing blocks overlap one another in frequency at RF. In the case where it is not necessary that the full CATV band be available to the combined output, the number of required processing blocks and upconversion paths is reduced and individual processing blocks and upconversion paths may be used to cover multiple non-contiguous frequency bands.

    Abstract translation: 提供了一种信道处理方法，其中可以在RF处组合多个减少带宽的“处理块”，以允许在全部或部分CATV输出频带上连续且灵活地放置多个信道。 每个缩减带宽处理块与固定频率上变频相关联。 为了允许连续的敏捷通道放置，处理块在RF频率上彼此重叠。 在不需要全部CATV频带对组合输出可用的情况下，减少所需的处理块和上变频路径的数量，并且可以使用各个处理块和上变频路径来覆盖多个不连续的频带。

    Agile distortion and noise cancellation across multiple channels and ports in a CATV upconverter/modulator
    3.
    发明授权
    Agile distortion and noise cancellation across multiple channels and ports in a CATV upconverter/modulator 有权
    CATV上变频器/调制器中多个通道和端口的敏捷失真和噪声消除

    公开(公告)号：US08499328B2

    公开(公告)日：2013-07-30

    申请号：US13016169

    申请日：2011-01-28

    Applicant: Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    Inventor： Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    IPC: H04N7/16

    CPC classification number: H04N7/173 ,  H04N21/6118

    Abstract: A distortion-cancellation method for analog CATV or QAM transmission over cable is provided wherein a single feedback path from the output of a multiple-channel multiple-port upconverter/modulator is down-converted and used to reduce or cancel undesirable noise components including LO leakage, spurious, and modulated noise. The method allows for real-time monitoring, tuning, or control of the CATV/QAM output and of interfering signals and aging effects as compared to a desired performance metric.

    Abstract translation: 提供了通过电缆的模拟CATV或QAM传输的失真消除方法，其中来自多通道多端口上变频器/调制器的输出的单个反馈路径被下变频并用于减少或消除包括LO泄漏的不期望的噪声分量 ，杂散和调制噪声。 与所需性能指标相比，该方法允许CATV / QAM输出的实时监控，调谐或控制以及干扰信号和老化效应。

    MULTIPLE REDUCED-BANDWIDTH PROCESSING CHAINS TO ACHIEVE A FULL AND CONTINUOUS OUTPUT BAND FOR MULTIPLE CHANNEL CATV UPCONVERSION
    5.
    发明申请
    MULTIPLE REDUCED-BANDWIDTH PROCESSING CHAINS TO ACHIEVE A FULL AND CONTINUOUS OUTPUT BAND FOR MULTIPLE CHANNEL CATV UPCONVERSION 有权
    多个减少带宽加工链，以实现用于多通道有线电视转播的完全连续的输出带

    公开(公告)号：US20110187936A1

    公开(公告)日：2011-08-04

    申请号：US13017078

    申请日：2011-01-31

    Applicant: Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    Inventor： Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    IPC: H04N5/40

    CPC classification number: H04N5/40 ,  H04N21/6118

    Abstract: A method of channel processing is provided wherein multiple reduced-bandwidth “processing blocks” may be combined at RF to allow for the continuous and flexible placement of multiple-channels across the full or partial CATV output band. Each reduced-bandwidth processing block is associated with a fixed-frequency upconversion. In order to allow for continuous agile channel placement, the processing blocks overlap one another in frequency at RF. In the case where it is not necessary that the full CATV band be available to the output, the number of required processing blocks and upconversion chains is reduced and individual processing blocks and upconversion chains may be used to cover multiple non-contiguous frequency bands.

    Abstract translation: 提供了一种信道处理方法，其中可以在RF处组合多个减少带宽的“处理块”，以允许在全部或部分CATV输出频带上连续且灵活地放置多个信道。 每个缩减带宽处理块与固定频率上变频相关联。 为了允许连续的敏捷通道放置，处理块在RF频率上彼此重叠。 在不需要全部CATV频带对输出可用的情况下，减少所需的处理块和上变频链的数量，并且可以使用单独的处理块和上变频链来覆盖多个不连续的频带。

    AGILE DISTORTION AND NOISE CANCELLATION ACROSS MULTIPLE CHANNELS AND PORTS IN A CATV UPCONVERTER/MODULATOR
    7.
    发明申请
    AGILE DISTORTION AND NOISE CANCELLATION ACROSS MULTIPLE CHANNELS AND PORTS IN A CATV UPCONVERTER/MODULATOR 有权
    在CATV UPCONVERTER / MODULATOR中的多个通道和端口的AGILE失效和噪声消除

    公开(公告)号：US20110191815A1

    公开(公告)日：2011-08-04

    申请号：US13016169

    申请日：2011-01-28

    Applicant: Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    Inventor： Colin Howlett ,  Gerald Harron ,  Michael Jaspar

    IPC: H04N7/173

    CPC classification number: H04N7/173 ,  H04N21/6118

    Abstract: A distortion-cancellation method for analog CATV or QAM transmission over cable is provided wherein a single feedback path from the output of a multiple-channel multiple-port upconverter/modulator is down-converted and used to reduce or cancel undesirable noise components including LO leakage, spurious, and modulated noise. The method allows for real-time monitoring, tuning, or control of the CATV/QAM output and of interfering signals and aging effects as compared to a desired performance metric.

    Abstract translation: 提供了通过电缆的模拟CATV或QAM传输的失真消除方法，其中来自多通道多端口上变频器/调制器的输出的单个反馈路径被下变频并用于减少或消除包括LO泄漏的不期望的噪声分量 ，杂散和调制噪声。 与所需性能指标相比，该方法允许CATV / QAM输出的实时监控，调谐或控制以及干扰信号和老化效应。

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