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438 条记录 (耗时 0.041 秒)

    Color gamut mapper for dynamic range conversion and methods for use therewith
    1.
    发明授权
    Color gamut mapper for dynamic range conversion and methods for use therewith 有权

    公开(公告)号：US10257483B2

    公开(公告)日：2019-04-09

    申请号：US15858096

    申请日：2017-12-29

    申请人： ViXS Systems, Inc.

    发明人： Ying Liu ,  Xinghai Li ,  Jie Feng

    IPC分类号： H04N9/68 ,  H04N5/20 ,  H04N9/67 ,  G06T5/00

    摘要： In various embodiments, a color gamut mapper includes a gamut map selection generator configured to analyze color space signals and generate a gamut map selection signal in response thereto. A color gamut transformer is configured to process the color space signals via a selected one of a plurality of gamut maps to generate gamut mapped color space signals, wherein the selected one of the plurality of gamut maps is selected in response to the gamut map selection signal. Other embodiments are disclosed.

    Dynamic transmitter calibration
    3.
    发明授权
    Dynamic transmitter calibration 有权

    公开(公告)号：US09655069B2

    公开(公告)日：2017-05-16

    申请号：US13228547

    申请日：2011-09-09

    申请人： James Robert Kelton ,  Michael David Cave

    发明人： James Robert Kelton ,  Michael David Cave

    IPC分类号： H04W52/52 ,  H04W52/24 ,  H04W52/36

    CPC分类号： H04W52/52 ,  H04W52/241 ,  H04W52/243 ,  H04W52/367

    摘要： A method includes generating an indicator of interference introduced by a transmitter into a spectrum of an output transmit signal outside a target channel of the transmitter. The indicator is generated based on the output transmit signal. The method includes adjusting a power level of the output transmit signal based on the indicator and a predetermined interference indicator level. The indicator may indicate a carrier-to-interference (C/I) ratio of the output transmit signal, and the adjusting comprises setting the power level of the output transmit signal to a maximum power level that maintains the C/I ratio of the output transmit signal above the predetermined interference indicator level. The output transmit signal may be based on a radio-frequency output of a power amplifier of the transmitter prior to transmission over a channel and the generating comprises generating a baseband version of the output transmit signal.

    Dynamic range converter with logarithmic conversion and methods for use therewith
    4.
    发明授权
    Dynamic range converter with logarithmic conversion and methods for use therewith 有权

    公开(公告)号：US09654755B2

    公开(公告)日：2017-05-16

    申请号：US14867234

    申请日：2015-09-28

    申请人： ViXS Systems, Inc.

    发明人： Bradley Arthur Wallace

    IPC分类号： H04N9/68 ,  H04N9/67 ,  H04N5/20 ,  G06T5/00

    CPC分类号： H04N9/68 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67

    摘要： In various embodiments, a dynamic range converter includes at least one circuit including a logarithm base 2 (log 2) domain circuit that uses piecewise linear interpolation to perform as at least a portion of one of: a linearizer configured to convert nonlinear color space signals to linearized color space signals; a delinearizer configured to convert linear color space signals to nonlinearized color space signals; a chrominance tone mapper for scaling gamut shaped components in accordance with dynamic color transform metadata to generate chrominance mapped components; or a luminance tone mapper for scaling color remapped components in accordance with the dynamic color transform metadata to generate luminance mapped components. Other embodiments are disclosed.

    Bonded OFDM communication system
    5.
    发明授权
    Bonded OFDM communication system 有权

    公开(公告)号：US09634874B2

    公开(公告)日：2017-04-25

    申请号：US15000912

    申请日：2016-01-19

    申请人： ViXS Systems Inc.

    发明人： Cimarron Mittelsteadt ,  Amit Ranjan Dubey ,  Michael Cave

    IPC分类号： H04L27/00 ,  H04L27/26 ,  H04L29/08

    CPC分类号： H04L27/26 ,  H04L27/2626 ,  H04L27/2647 ,  H04L69/323

    摘要： An orthogonal frequency division multiplexing (OFDM) communication system includes a first interface having a first cable coupler to couple to a first end of a coaxial cable, and a first plurality of signal pathways coupled to the first cable coupler. Each signal pathway of the first plurality includes a physical (PHY) layer component and a radio frequency (RF) front end coupled to the PHY layer component. The system further includes a second interface having a second cable coupler to couple to a second end of a coaxial cable, and a second plurality of signal pathways coupled to the second cable coupler. Each signal pathway of the second plurality corresponds to a signal pathway of the first plurality and includes a PHY layer component and an RF front end coupled to the PHY layer component.

    Video processor with random access to compressed frame buffer and methods for use therewith
    7.
    发明授权
    Video processor with random access to compressed frame buffer and methods for use therewith 有权
    具有随机访问压缩帧缓冲器的视频处理器及其使用方法

    公开(公告)号：US09503744B2

    公开(公告)日：2016-11-22

    申请号：US13933302

    申请日：2013-07-02

    申请人： ViXS Systems, Inc.

    发明人： Qi Yang ,  Xin Guo ,  Indra Laksono ,  Xu Gang Zhao

    IPC分类号： H04N19/12 ,  H04N19/44 ,  H04N19/17 ,  H04N19/20

    CPC分类号： H04N19/44 ,  H04N19/12 ,  H04N19/17 ,  H04N19/20

    摘要： A video processing device includes a video processing unit that decodes a video input signal into a decoded video signal in accordance with a video compression protocol, based on uncompressed video frame data. A data object compression/decompression module generates compressed video frame data by compressing a plurality of video data objects into a plurality of compressed video data objects, storing the plurality of compressed video data objects in a compressed frame buffer. The data object compression/decompression module retrieves a selected portion of video frame data from the compressed video frame buffer by identifying selected ones of plurality of compressed video data objects that correspond to the selected portion of video frame data, retrieving the selected ones of the plurality of compressed video data objects and generating the uncompressed video frame data by decompressing the selected ones of the plurality of compressed video data objects.

    摘要翻译： 视频处理装置包括视频处理单元，其基于未压缩的视频帧数据，根据视频压缩协议将视频输入信号解码为解码视频信号。 数据对象压缩/解压缩模块通过将多个视频数据对象压缩成多个压缩视频数据对象来生成压缩视频帧数据，将多个压缩视频数据对象存储在压缩帧缓冲器中。 数据对象压缩/解压缩模块通过识别与所选择的视频帧数据部分相对应的多个压缩视频数据对象中的选择的一个，从压缩视频帧缓冲器检索视频帧数据的选定部分，检索多个 的压缩视频数据对象，并且通过对所述多个压缩视频数据对象中的所选压缩视频数据对象进行解压缩来生成未压缩的视频帧数据。

    VIDEO CAMERA SYSTEM WITH DISTRIBUTED CONTROL AND METHODS FOR USE THEREWITH
    8.
    发明申请
    VIDEO CAMERA SYSTEM WITH DISTRIBUTED CONTROL AND METHODS FOR USE THEREWITH 有权
    具有分布式控制的视频摄像机系统及其使用方法

    公开(公告)号：US20160295246A1

    公开(公告)日：2016-10-06

    申请号：US14677024

    申请日：2015-04-02

    申请人： ViXS Systems, Inc.

    发明人： Indra Laksono ,  Sally Jean Daub ,  John Pomeroy ,  Xu Gang Zhao

    IPC分类号： H04N21/218 ,  H04N21/472 ,  H04N21/258 ,  H04N21/2187 ,  H04N21/254

    CPC分类号： H04N21/21805 ,  G05D1/00 ,  G05D1/104 ,  H04N5/247 ,  H04N5/268 ,  H04N21/2187 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/47202

    摘要： Aspects of the subject disclosure may include, for example, a video camera system that includes a first subset of video cameras that are configured to generate at least one broadcast video signal of an event, and a second subset of video cameras that are each individually controllable in response to subscriber control data from a corresponding one of a plurality of video player systems to generate a plurality of processed video signals of the event. A video access server receives the subscriber control data from the video player systems corresponding to a plurality of subscribers for control of the second subset of video cameras, and for routing the processed video signals of the event such that each of the plurality of processed video signals of the event is routed to the corresponding one of the plurality of video player systems. Other embodiments are disclosed.

    摘要翻译： 主题公开的方面可以包括例如包括被配置为生成事件的至少一个广播视频信号的视频摄像机的第一子集的摄像机系统和每个可独立控制的摄像机的第二子集 响应于来自多个视频播放器系统中相应的一个视频播放器系统的用户控制数据，以产生事件的多个被处理的视频信号。 视频接入服务器从对应于多个用户的视频播放器系统接收用户控制数据，用于控制第二摄像机子集，并且用于路由处理的视频信号，使得多个处理后的视频信号 的事件被路由到多个视频播放器系统中的相应的一个。 公开了其他实施例。

    Scaled motion search section with parallel processing and method for use therewith
    10.
    发明授权
    Scaled motion search section with parallel processing and method for use therewith 有权
    具有并行处理的缩放运动搜索部分和与其一起使用的方法

    公开(公告)号：US09420308B2

    公开(公告)日：2016-08-16

    申请号：US12642482

    申请日：2009-12-18

    申请人： Eric Young

    发明人： Eric Young

    IPC分类号： H04N19/53 ,  H04N19/533 ,  H04N19/56 ,  H04N19/59

    CPC分类号： H04N19/59 ,  H04N19/53 ,  H04N19/533 ,  H04N19/56

    摘要： A scaled motion search section can be used in a video processing device that processes a video input signal that includes a plurality of pictures. The scaled motion search section includes a downscaling module that downscales the plurality of pictures to generate a plurality of downscaled pictures. A reduced-scale motion search module generates a plurality of motion vector candidates at a downscaled resolution, based on the plurality of downscaled pictures. The reduced-scale motion search module includes a column buffer that stores a column of reference data and generates the plurality of motion vector candidates based on a parallel processing of the column of reference data for a group of adjacent macroblock pairs.

    摘要翻译： 缩放运动搜索部分可以用于处理包括多个图像的视频输入信号的视频处理装置。 缩放运动搜索部分包括缩小模块，其缩小多个图片以生成多个缩小的图片。 缩小运动搜索模块基于多个缩小的图片以缩小的分辨率生成多个运动矢量候选。 缩小尺度运动搜索模块包括列缓冲器，其存储参考数据列，并且基于对于一组相邻宏块对的参考数据列的并行处理来生成多个运动矢量候选。