Systems and methods for generation of time-dependent control signals for video signals
    21.
    发明授权
    Systems and methods for generation of time-dependent control signals for video signals 有权
    用于产生视频信号的时间依赖控制信号的系统和方法

    公开(公告)号:US07555125B2

    公开(公告)日:2009-06-30

    申请号:US10640627

    申请日:2003-08-14

    IPC分类号: H04N7/167

    摘要: Systems and methods for generation of time-dependent control signals for video signals are provided. A system is provided that includes a set of microsequencers, a programmable combinational logic (PCL) module, shared memory, an arbiter for sharing of memory by the microsequencers, stacks containing registers for microsequencer control, and a control interface. The system can efficiently provide control signals for video signals, implement the MACROVISION copy protection process, and provide other value added features. The method includes accessing programs from shared memory, such that a set of microsequencers can generate flags. These flags are then processed to generate one or more control signals used to support the outputting of video signals including those requiring MACROVISION copy protection.

    摘要翻译: 提供了用于产生用于视频信号的时间相关控制信号的系统和方法。 提供了一种系统,其包括一组微排序器,可编程组合逻辑(PCL)模块,共享存储器,用于由微排序器共享存储器的仲裁器,包含用于微定序器控制的寄存器的堆栈和控制接口。 该系统可以有效地为视频信号提供控制信号,实现MACROVISION复制保护过程,并提供其他增值功能。 该方法包括从共享存储器访问程序,使得一组微排序器可以产生标志。 然后处理这些标志以产生用于支持输出视频信号的一个或多个控制信号,包括需要MACROVISION复制保护的视频信号。

    Automatic color-sync polarity control
    22.
    发明授权
    Automatic color-sync polarity control 失效
    自动色同步极性控制

    公开(公告)号:US07489338B2

    公开(公告)日:2009-02-10

    申请号:US11205600

    申请日:2005-08-17

    CPC分类号: H04N9/465

    摘要: A system and method for automatically controlling color synchronization polarity during video decoding. Various aspects of the present invention may comprise at least one module that is adapted to monitor color synchronization polarity at a plurality of instances over a period of time. The at least one module may also, for example, be adapted to generate a sequence of signals indicative of the color synchronization polarity correctness at the plurality of instances. The at least one module may additionally, for example, be adapted to statistically analyze the sequence of signals. The at least one module may further, for example, be adapted to determine, based at least in part on the statistical analysis of the sequence of signals, whether color synchronization polarity is correct. The at least one module may still further, for example, be adapted to control color synchronization polarity based, at least in part, on the polarity correctness determination.

    摘要翻译: 一种用于在视频解码期间自动控制颜色同步极性的系统和方法。 本发明的各个方面可以包括至少一个模块,其适于在一段时间内监视多个实例处的颜色同步极性。 所述至少一个模块也可以例如适于产生指示多个实例处的颜色同步极性正确性的信号序列。 例如,至少一个模块可以另外适于统计分析信号序列。 至少一个模块可以进一步例如适于至少部分地基于信号序列的统计分析来确定颜色同步极性是否正确。 至少一个模块还可以进一步例如适于至少部分地基于极性正确性确定来控制颜色同步极性。

    System and method for determining video subcarrier phase
    23.
    发明授权
    System and method for determining video subcarrier phase 失效
    用于确定视频副载波相位的系统和方法

    公开(公告)号:US07425991B2

    公开(公告)日:2008-09-16

    申请号:US11200343

    申请日:2005-08-08

    IPC分类号: H04N9/45 H04N17/02

    CPC分类号: H04N9/66 H04N5/12 H04N9/45

    摘要: A system and method for determining phase of a subcarrier (e.g., a jittering video subcarrier). Various aspects of the present invention may comprise determining at least one weighting factor based, at least in part, on a subcarrier synchronization signal (e.g., a video synchronization signal). A first subcarrier phase sample and at least a second subcarrier phase sample may then be obtained. Subcarrier phase may then be determined by interpolating between the first subcarrier phase sample and the second subcarrier phase sample, where such interpolation (e.g., linear interpolation) may be based, at least in part, on the determined weighting factor(s).

    摘要翻译: 一种用于确定副载波相位(例如抖动视频副载波)的系统和方法。 本发明的各个方面可以包括至少部分地基于子载波同步信号(例如,视频同步信号)来确定至少一个加权因子。 然后可以获得第一副载波相位采样和至少第二副载波相位采样。 然后可以通过在第一子载波相位采样和第二子载波相位采样之间进行内插来确定副载波相位,其中这种内插(例如,线性内插)可以至少部分地基于所确定的加权因子。

    AUTOMATIC FORMAT IDENTIFICATION OF ANALOG VIDEO INPUT SIGNALS
    24.
    发明申请
    AUTOMATIC FORMAT IDENTIFICATION OF ANALOG VIDEO INPUT SIGNALS 有权
    模拟视频输入信号的自动格式识别

    公开(公告)号:US20080100742A1

    公开(公告)日:2008-05-01

    申请号:US11862876

    申请日:2007-09-27

    IPC分类号: H04N7/01

    摘要: In a method of automatically identifying a format of a video signal, where the video signal includes HSync pulses, VSync pulses, and video display data, the video signal is received, information about timing and width characteristics of the HSync pulses and the VSync pulses is extracted from the video signal, and the format of the video signal is determined based on the extracted information.

    摘要翻译: 在自动识别视频信号的格式的方法中,其中视频信号包括HSync脉冲,VSync脉冲和视频显示数据,接收视频信号,关于HSync脉冲和VSync脉冲的定时和宽度特性的信息是 从视频信号提取,并且基于所提取的信息来确定视频信号的格式。

    Method and system for processing in a non-line locked system
    25.
    发明授权
    Method and system for processing in a non-line locked system 失效
    非线路锁定系统中处理的方法和系统

    公开(公告)号:US07298418B2

    公开(公告)日:2007-11-20

    申请号:US10875439

    申请日:2004-06-24

    IPC分类号: H04N9/475 H04N17/00

    CPC分类号: H04N9/78 H04N9/44

    摘要: Certain embodiments of the invention disclose a method and system for processing in a non-line locked system. The phase relationship between the sub-carrier signal on consecutive video lines in a video comb filter is determined by synchronizing the two video lines. The synchronization is achieved by aligning the color bursts signals in each of the two video lines. The phase error between the two video lines is determined through the use of a correlation operation. The phase error between consecutive video lines is used to automatically adjust the delay lines used by the video comb filter. The line delay adjustment is provided by changing the values of a variable integer delay and a fractional integer delay. Line delay adjustments reduce the artifacts that occur in the separation of luma and chroma components of a composite video signal.

    摘要翻译: 本发明的某些实施例公开了一种用于在非线路锁定系统中进行处理的方法和系统。 视频梳状滤波器中的连续视频行上的子载波信号之间的相位关系是通过同步两条视频线来确定的。 通过对准两条视频行中的每一条中的色同步信号来实现同步。 通过使用相关运算来确定两条视频线之间的相位误差。 连续视频线之间的相位误差用于自动调整视频梳状滤波器使用的延迟线。 通过改变可变整数延迟和分数整数延迟的值来提供线延迟调整。 线延迟调整减少了在复合视频信号的亮度和色度分量分离中发生的伪像。

    System and method for determining video subcarrier phase
    26.
    发明申请
    System and method for determining video subcarrier phase 失效
    用于确定视频副载波相位的系统和方法

    公开(公告)号:US20070030352A1

    公开(公告)日:2007-02-08

    申请号:US11200343

    申请日:2005-08-08

    IPC分类号: H04N17/02 H04N9/45

    CPC分类号: H04N9/66 H04N5/12 H04N9/45

    摘要: A system and method for determining phase of a subcarrier (e.g., a jittering video subcarrier). Various aspects of the present invention may comprise determining at least one weighting factor based, at least in part, on a subcarrier synchronization signal (e.g., a video synchronization signal). A first subcarrier phase sample and at least a second subcarrier phase sample may then be obtained. Subcarrier phase may then be determined by interpolating between the first subcarrier phase sample and the second subcarrier phase sample, where such interpolation (e.g., linear interpolation) may be based, at least in part, on the determined weighting factor(s).

    摘要翻译: 一种用于确定副载波相位(例如抖动视频副载波)的系统和方法。 本发明的各个方面可以包括至少部分地基于子载波同步信号(例如,视频同步信号)来确定至少一个加权因子。 然后可以获得第一副载波相位采样和至少第二副载波相位采样。 然后可以通过在第一子载波相位采样和第二子载波相位采样之间进行内插来确定副载波相位,其中这种内插(例如,线性内插)可以至少部分地基于所确定的加权因子。

    Method and apparatus for video signal processing
    27.
    发明授权
    Method and apparatus for video signal processing 有权
    视频信号处理方法和装置

    公开(公告)号:US08295367B2

    公开(公告)日:2012-10-23

    申请号:US12351237

    申请日:2009-01-09

    IPC分类号: H04N7/12

    摘要: Systems and methods of processing a video signal are provided. A potential block boundary can be detected between a first block and a second block of a frame of the video signal, wherein the frame, the first block, and the second block each include a plurality of pixels. An offset parameter can be determined for at least one pixel of at least one of the first block and the second block. Based on the offset parameter, a boundary verification value of at least one of the first block and the second block can also be determined. Based on the boundary verification value, it can further be determined if the potential block boundary includes a block boundary.

    摘要翻译: 提供了处理视频信号的系统和方法。 可以在视频信号的帧的第一块和第二块之间检测潜在的块边界,其中帧,第一块和第二块各自包括多个像素。 可以为第一块和第二块中的至少一个的至少一个像素确定偏移参数。 基于偏移参数,还可以确定第一块和第二块中的至少一个的边界验证值。 基于边界验证值,还可以确定潜在的块边界是否包括块边界。

    CLOSED LOOP SUB-CARRIER SYNCHRONIZATION SYSTEM
    30.
    发明申请
    CLOSED LOOP SUB-CARRIER SYNCHRONIZATION SYSTEM 失效
    关闭环路子载波同步系统

    公开(公告)号:US20080205566A1

    公开(公告)日:2008-08-28

    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 subcarrier. 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采样信号和输出接收副载波之间的相位差。 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。