Closed loop sub-carrier synchronization system
    7.
    发明授权
    Closed loop sub-carrier synchronization system 失效
    闭环子载波同步系统

    公开(公告)号:US07529330B2

    公开(公告)日:2009-05-05

    申请号:US12118124

    申请日:2008-05-09

    IPC分类号: H04L7/00

    CPC分类号: H04N9/78 H04N9/44

    摘要: A system and method for synchronizing sub-carriers in a signal processing system. Various aspects of the present invention may comprise method steps and structure that receive a sampled signal. Various aspects may produce a synchronization signal based on the sampled signal. Various aspects may generate and store a cropped version of the received sampled signal. Various aspects may read a cropped sampled signal from memory that corresponds to the received sampled signal. Various aspects may generate a restored sampled signal by adding samples to the cropped sampled signal read from memory. Various aspects may, based on the synchronization signal, output the restored sampled signal coarsely synchronized to the received sampled signal. Various aspects may determine a phase difference between the output restored sampled signal and the output received sub-carrier. Various aspects may adjust the phase of the restored sampled signal in response to the determined phase difference.

    摘要翻译: 一种用于在信号处理系统中同步子载波的系统和方法。 本发明的各个方面可以包括接收采样信号的方法步骤和结构。 各个方面可以基于采样信号产生同步信号。 各方面可以生成并存储所接收的采样信号的裁剪版本。 各个方面可以从对应于接收到的采样信号的存储器读取经裁剪的采样信号。 各个方面可以通过将样本添加到从存储器读取的经裁剪的采样信号来产生恢复的采样信号。 各个方面可以基于同步信号,将恢复的采样信号粗略地与接收的采样信号同步。 各个方面可以确定输出恢复的采样信号和输出接收的子载波之间的相位差。 响应于确定的相位差,各个方面可以调整恢复的采样信号的相位。

    Closed loop sub-carrier synchronization system
    8.
    发明授权
    Closed loop sub-carrier synchronization system 有权
    闭环子载波同步系统

    公开(公告)号:US07372929B2

    公开(公告)日:2008-05-13

    申请号:US10794601

    申请日:2004-03-05

    IPC分类号: H04L7/00

    CPC分类号: H04N9/78 H04N9/44

    摘要: A system and method for synchronizing sub-carriers in a signal processing system. Various aspects of the present invention may comprise method steps and structure that receive a sampled signal. Various aspects may produce a synchronization signal based on the sampled signal. Various aspects may generate and store a cropped version of the received sampled signal. Various aspects may read a cropped sampled signal from memory that corresponds to the received sampled signal. Various aspects may generate a restored sampled signal by adding samples to the cropped sampled signal read from memory. Various aspects may, based on the synchronization signal, output the restored sampled signal coarsely synchronized to the received sampled signal. Various aspects may determine a phase difference between the output restored sampled signal and the output received sub-carrier. Various aspects may adjust the phase of the restored sampled signal in response to the determined phase difference.

    摘要翻译: 一种用于在信号处理系统中同步子载波的系统和方法。 本发明的各个方面可以包括接收采样信号的方法步骤和结构。 各个方面可以基于采样信号产生同步信号。 各方面可以生成并存储所接收的采样信号的裁剪版本。 各个方面可以从对应于接收到的采样信号的存储器读取经裁剪的采样信号。 各个方面可以通过将样本添加到从存储器读取的经裁剪的采样信号来产生恢复的采样信号。 各个方面可以基于同步信号,将恢复的采样信号粗略地与接收的采样信号同步。 各个方面可以确定输出恢复的采样信号和输出接收的子载波之间的相位差。 响应于确定的相位差,各个方面可以调整恢复的采样信号的相位。

    Method and system for data compression for storage of 3D comb filter data
    9.
    发明申请
    Method and system for data compression for storage of 3D comb filter data 有权
    用于存储3D梳状滤波器数据的数据压缩方法和系统

    公开(公告)号:US20050174492A1

    公开(公告)日:2005-08-11

    申请号:US10869395

    申请日:2004-06-16

    IPC分类号: H04N9/64 H04N9/78

    CPC分类号: H04N9/78

    摘要: Methods and systems for data compression for storage of 3D comb filter data are disclosed. An incoming video signal may be band-limited during combing, where the incoming video signal may comprise a plurality of active and inactive video samples disposed within a plurality of video lines. The active video samples disposed within at least a portion of the plurality of video lines may be stored. The incoming video signal may be band-limited to 6.75 MHz, for example. Video samples utilized for eliminating edge effects may be stored. The number of video samples utilized for eliminating edge effects may be associated with an upsampling filter tap count. The active video samples may be combed. At least a portion of the plurality of video lines may be stored. The portion of the plurality of video lines may comprise active video lines.

    摘要翻译: 公开了用于存储3D梳状滤波器数据的数据压缩的方法和系统。 输入视频信号可以在梳理期间被带限制,其中输入视频信号可以包括设置在多个视频行内的多个有效和非活动视频样本。 可以存储设置在多个视频行的至少一部分内的活动视频样本。 输入的视频信号例如可以被限制到6.75MHz。 可以存储用于消除边缘效应的视频样本。 用于消除边缘效应的视频样本的数量可能与上采样滤波器抽头数相关。 活动的视频样本可以被梳理。 多个视频行的至少一部分可以被存储。 多个视频行的部分可以包括有效的视频行。

    Method and system for data compression for storage of 3D comb filter data
    10.
    发明授权
    Method and system for data compression for storage of 3D comb filter data 有权
    用于存储3D梳状滤波器数据的数据压缩方法和系统

    公开(公告)号:US07492415B2

    公开(公告)日:2009-02-17

    申请号:US10869395

    申请日:2004-06-16

    IPC分类号: H04N9/77 H04N9/78

    CPC分类号: H04N9/78

    摘要: Methods and systems for data compression for storage of 3D comb filter data are disclosed. An incoming video signal may be band-limited during combing, where the incoming video signal may comprise a plurality of active and inactive video samples disposed within a plurality of video lines. The active video samples disposed within at least a portion of the plurality of video lines may be stored. The incoming video signal may be band-limited to 6.75 MHz, for example. Video samples utilized for eliminating edge effects may be stored. The number of video samples utilized for eliminating edge effects may be associated with an upsampling filter tap count. The active video samples may be combed. At least a portion of the plurality of video lines may be stored. The portion of the plurality of video lines may comprise active video lines.

    摘要翻译: 公开了用于存储3D梳状滤波器数据的数据压缩的方法和系统。 输入视频信号可以在梳理期间被带限制,其中输入视频信号可以包括设置在多个视频行内的多个有效和非活动视频样本。 可以存储设置在多个视频行的至少一部分内的活动视频样本。 输入的视频信号例如可以被限制到6.75MHz。 可以存储用于消除边缘效应的视频样本。 用于消除边缘效应的视频样本的数量可能与上采样滤波器抽头数相关。 活动的视频样本可以被梳理。 多个视频行的至少一部分可以被存储。 多个视频行的部分可以包括有效的视频行。