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    • 3. 发明申请
    • BITRATE CONTROL ALGORITHM FOR VIDEO TRANSCODING SYSTEMS
    • 用于视频转换系统的双向控制算法
    • US20110002381A1
    • 2011-01-06
    • US12497110
    • 2009-07-02
    • Kyeong H. YangRan DingRamachandran Ramani
    • Kyeong H. YangRan DingRamachandran Ramani
    • H04N7/26
    • H04N19/40H04N19/124H04N19/132H04N19/149H04N19/172H04N19/587
    • A video transcoding system and method employing an improved rate control algorithm. A plurality of frames in an input video bitstream are received by the system, in which each frame is in a first coding format. Each frame in the input bitstream is decoded, and complexity information indicating the complexity of the frame after decoding is obtained. An estimated number of bits to allocate for the respective frame is calculated. Using a rate estimation model that employs the complexity information for the respective frame, a picture cost for the frame is calculated based on the estimated number of bits allocated to encode the frame, and a parameter of the rate estimation model. A target cost for the respective frame is calculated based at least in part on the picture cost 10 and the complexity information for the frame. A quantization parameter (QP) is calculated that, when used to encode the respective frame in a second coding format, would generate an encoded frame having an actual cost approximately equal to the target cost. The respective frame is encoded using the calculated QP, and the frames encoded in the second coding format are provided in an output video bitstream.
    • 一种使用改进的速率控制算法的视频转码系统和方法。 输入视频比特流中的多个帧由系统接收,其中每个帧处于第一编码格式。 对输入比特流中的每一帧进行解码,得到解码后的帧复杂度的复杂度信息。 计算用于相应帧的分配的估计位数。 使用采用相应帧的复杂度信息的速率估计模型,基于分配用于编码帧的估计位数和速率估计模型的参数来计算帧的图像成本。 至少部分地基于图像成本10和帧的复杂度信息来计算相应帧的目标成本。 计算量化参数(QP),当用于以第二编码格式编码各个帧时,将产生具有大致等于目标成本的实际成本的编码帧。 使用所计算的QP编码各个帧,并且以输出视频比特流提供以第二编码格式编码的帧。
    • 5. 发明授权
    • Circuit control system and method for dynamically adjusting voltage and frequency
    • 用于动态调节电压和频率的电路控制系统和方法
    • US09317048B2
    • 2016-04-19
    • US14238465
    • 2011-09-06
    • Shuangge KuangRan Ding
    • Shuangge KuangRan Ding
    • G05F1/10G05F1/12G06F1/32
    • G05F1/12G06F1/3206G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • Provided are a circuit control system and method for dynamically adjusting voltage and frequency. The circuit control system herein includes: a lookup table module configured to store a combined table of voltage-frequency corresponding relation curves of a target circuit under one or more working conditions; a converting module configured to make conversion between a working voltage and a working frequency of the target circuit according to the lookup table module; and a combined adjusting module configured to combinedly adjust the working frequency and the working voltage of the target circuit. With a high degree of automation, the circuit control system herein is safe and reliable for adjusting the working voltage and the working frequency of the target circuit, thereby achieving the effects of adjustment and optimization.
    • 提供了用于动态调整电压和频率的电路控制系统和方法。 这里的电路控制系统包括:查找表模块,被配置为在一个或多个工作条件下存储目标电路的电压 - 频率对应关系曲线的组合表; 转换模块,被配置为根据查找表模块在目标电路的工作电压和工作频率之间进行转换; 以及组合调整模块,被配置为组合地调整目标电路的工作频率和工作电压。 在这种自动化程度高的情况下,电路控制系统可以安全可靠地调整目标电路的工作电压和工作频率,从而达到调整和优化的效果。
    • 8. 发明申请
    • CIRCUIT CONTROL SYSTEM AND METHOD FOR DYNAMICALLY ADJUSTING VOLTAGE AND FREQUENCY
    • 用于动态调整电压和频率的电路控制系统和方法
    • US20140191734A1
    • 2014-07-10
    • US14238465
    • 2011-09-06
    • Shuangge KuangRan Ding
    • Shuangge KuangRan Ding
    • G05F1/12
    • G05F1/12G06F1/3206G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • Provided are a circuit control system and method for dynamically adjusting voltage and frequency. The circuit control system herein includes: a lookup table module configured to store a combined table of voltage-frequency corresponding relation curves of a target circuit under one or more working conditions; a converting module configured to make conversion between a working voltage and a working frequency of the target circuit according to the lookup table module; and a combined adjusting module configured to combinedly adjust the working frequency and the working voltage of the target circuit. With a high degree of automation, the circuit control system herein is safe and reliable for adjusting the working voltage and the working frequency of the target circuit, thereby achieving the effects of adjustment and optimization.
    • 提供了用于动态调整电压和频率的电路控制系统和方法。 这里的电路控制系统包括:查找表模块,被配置为在一个或多个工作条件下存储目标电路的电压 - 频率对应关系曲线的组合表; 转换模块,被配置为根据查找表模块在目标电路的工作电压和工作频率之间进行转换; 以及组合调整模块,被配置为组合地调整目标电路的工作频率和工作电压。 在这种自动化程度高的情况下,电路控制系统可以安全可靠地调整目标电路的工作电压和工作频率,从而达到调整和优化的效果。
    • 9. 发明授权
    • Audio video offset detector
    • 音频视频偏移检测器
    • US08717499B2
    • 2014-05-06
    • US13224744
    • 2011-09-02
    • Jeffrey A. BloomDekun ZouRan Ding
    • Jeffrey A. BloomDekun ZouRan Ding
    • H04N9/475H04N5/04
    • H04N5/04H04N21/233H04N21/23418H04N21/4307H04N21/4394H04N21/44008
    • Systems and methods of measuring a temporal offset between audio content and video content that employ audio fingerprints from an audio signal in the audio content, and video fingerprints from video frames in the video content. The systems obtain reference audio and video fingerprints prior to transmission of video over a media channel, and obtain target audio and video fingerprints subsequent to transmission of the video over the media channel. Each fingerprint has an associated time stamp. Using the reference and target audio fingerprints and their associated time stamps, the systems determine an audio time stamp offset. Using the reference and target video fingerprints and their associated time stamps, the systems determine a video time stamp offset. Using the audio and video time stamp offsets, the systems determine a temporal offset between the video content and the audio content introduced by the media channel.
    • 测量在音频内容中使用音频指纹的音频内容和视频内容之间的时间偏移的系统和方法,以及来自视频内容中视频帧的视频指纹。 在通过媒体信道传输视频之前,系统获得参考音频和视频指纹,并且在通过媒体信道传输视频之后获得目标音频和视频指纹。 每个指纹都有相关的时间戳。 使用参考和目标音频指纹及其相关的时间戳,系统确定音频时间戳偏移量。 使用参考和目标视频指纹及其相关的时间戳,系统确定视频时间戳偏移量。 使用音频和视频时间戳偏移,系统确定视频内容和由媒体频道引入的音频内容之间的时间偏移。