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25 条记录 (耗时 0.03 秒)

    System and method for detecting a non-video source in video signals
    11.
    发明授权
    System and method for detecting a non-video source in video signals 有权
    用于检测视频信号中非视频源的系统和方法

    公开(公告)号：US07800692B2

    公开(公告)日：2010-09-21

    申请号：US11537505

    申请日：2006-09-29

    申请人： G. Finn Wredenhagen ,  Gary Cheng ,  Kevin Ng

    发明人： G. Finn Wredenhagen ,  Gary Cheng ,  Kevin Ng

    IPC分类号： H04N7/01 ,  H04N5/46 ,  H04N9/64

    CPC分类号： H04N7/0112 ,  H04N7/012

    摘要： A video sequence may include a modality corresponding with an embedded pattern. At least one state machine detects the modality in accordance with difference signals. A signal generator generates the difference signals responsive to decision windows that define regions of interest in the video sequence. The modality may correspond with an embedded film source or other pattern types in the video sequence. Where the state machine detects more than one pattern, a single pattern is selected according to a predetermined priority. The video sequence may contain both static patterns and embedded film source patterns. The state machine discerns the presence of the embedded film source patterns notwithstanding the presence of the static patterns.

    摘要翻译： 视频序列可以包括与嵌入图案相对应的模态。 至少一个状态机根据差分信号检测模态。 信号发生器响应于决定视频序列中的感兴趣区域的决策窗口产生差分信号。 该模式可以对应于视频序列中的嵌入式电影源或其他模式类型。 在状态机检测到多于一个模式的情况下，根据预定的优先级选择单个模式。 视频序列可以包含静态图案和嵌入的电影源图案。 尽管存在静态图案，状态机也辨识出了嵌入式电影源图案的存在。

    Pre and post filter automatic gain control with bounded pre-filter gain control
    13.
    发明授权
    Pre and post filter automatic gain control with bounded pre-filter gain control 有权
    前置和后置滤波器自动增益控制与有限预滤波器增益控制

    公开(公告)号：US08106709B2

    公开(公告)日：2012-01-31

    申请号：US12630272

    申请日：2009-12-03

    申请人： Steve Selby ,  Fung Ling Chiu ,  Gary Cheng

    发明人： Steve Selby ,  Fung Ling Chiu ,  Gary Cheng

    IPC分类号： H03G3/20

    CPC分类号： H03G5/005 ,  H03G3/3089 ,  H03G5/22 ,  H03G9/00 ,  H03G9/005

    摘要： An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.

    摘要翻译： 电子电路包括：第一可变增益放大器，用于放大输入端的信号以提供第一放大信号; 接收第一放大信号以提供滤波信号的滤波器; 第二可变增益放大器，用于接收和放大经滤波的信号; 第二增益控制块，用于提供从滤波信号导出的至少一个增益控制信号，所述至少一个增益控制信号中的一个控制第二可变增益放大器的增益; 以及用于从所述第二增益控制块接收所述至少一个增益控制信号中的一个的边界块，并且用于从其生成有界增益控制信号以控制第一可变增益放大器的增益。

    PRE AND POST FILTER AUTOMATIC GAIN CONTROL WITH BOUNDED PRE-FILTER GAIN CONTROL
    15.
    发明申请
    PRE AND POST FILTER AUTOMATIC GAIN CONTROL WITH BOUNDED PRE-FILTER GAIN CONTROL 有权
    预过滤和自动过滤器自动增益控制，带有前置滤波器增益控制

    公开(公告)号：US20110133840A1

    公开(公告)日：2011-06-09

    申请号：US12630272

    申请日：2009-12-03

    申请人： Steve Selby ,  Fung Ling Chiu ,  Gary Cheng

    发明人： Steve Selby ,  Fung Ling Chiu ,  Gary Cheng

    IPC分类号： H03G3/00

    CPC分类号： H03G5/005 ,  H03G3/3089 ,  H03G5/22 ,  H03G9/00 ,  H03G9/005

    摘要： An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.

    摘要翻译： 电子电路包括：第一可变增益放大器，用于放大输入端的信号以提供第一放大信号; 接收第一放大信号以提供滤波信号的滤波器; 第二可变增益放大器，用于接收和放大经滤波的信号; 第二增益控制块，用于提供从滤波信号导出的至少一个增益控制信号，所述至少一个增益控制信号中的一个控制第二可变增益放大器的增益; 以及用于从所述第二增益控制块接收所述至少一个增益控制信号中的一个的边界块，并且用于从其生成有界增益控制信号以控制第一可变增益放大器的增益。

    DIGITAL SIGNAL PROCESSOR WITH ADJUSTABLE DATA RATE AND METHODS THEREOF
    19.
    发明申请
    DIGITAL SIGNAL PROCESSOR WITH ADJUSTABLE DATA RATE AND METHODS THEREOF 有权
    具有可调整数据速率的数字信号处理器及其方法

    公开(公告)号：US20130223572A1

    公开(公告)日：2013-08-29

    申请号：US13408011

    申请日：2012-02-29

    申请人： Gary Cheng ,  Vyacheslav Shyshkin ,  Steve Selby

    发明人： Gary Cheng ,  Vyacheslav Shyshkin ,  Steve Selby

    IPC分类号： H04B1/10 ,  H03M1/12

    CPC分类号： H04B1/0007

    摘要： As a digitized representation of an intermediate frequency television signal moves through a demodulator it undergoes a number of processes, including conversion from an analog signal to a digitized data, digital signal processing of the digitized data, and the like. The rate at which the digitized data moves through the digital signal processor of the demodulator for processing is referred to as the data rate of the DSP. The demodulator can vary the data rate based on a selected television channel, thereby reducing the level of interference at the demodulator resulting from noise.

    摘要翻译： 由于中频电视信号的数字化表示通过解调器移动，它经历多个处理，包括从模拟信号到数字化数据的转换，数字化数据的数字信号处理等。 数字化数据移动通过用于处理的解调器的数字信号处理器的速率被称为DSP的数据速率。 解调器可以基于所选择的电视频道改变数据速率，从而降低由噪声引起的解调器处的干扰水平。