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    • 101. 发明授权
    • Method and system for adaptive rate video compression and transmission
    • 自适应速率视频压缩和传输的方法和系统
    • US09083986B2
    • 2015-07-14
    • US12769458
    • 2010-04-28
    • Alexander G. MacInnis
    • Alexander G. MacInnis
    • H04N7/12H04N19/59H04N19/172H04N19/61H04N19/132H04N19/146H04N19/174H04N19/184H04N19/587H04N19/85
    • H04N19/59H04N19/132H04N19/146H04N19/172H04N19/174H04N19/184H04N19/587H04N19/61H04N19/85
    • For a portion of video data, a video processing device generates a plurality of compressed video bit streams comprising different bit rates, and selects one stream per portion of video data to transmit to a display device. The streams may be generated concurrently. Bit rates are determined based on operating conditions and link performance. The selections are determined dynamically in response to received information. The streams may be compressed utilizing different compression schemes, for example, DPCM and/or transform compression. The bit rates may be dynamically adjusted by adjusting compression scheme, compression parameters, frame size, frame rate, color space and/or chroma sampling. The portion of video data may comprise contiguous horizontal rows or portions of rows of pixels, a full frame and/or a scaled frame. Information is communicated to the display device for control of decompression operations. The display device receives, decompresses, reconstructs and displays the selected bit stream.
    • 对于视频数据的一部分,视频处理设备生成包括不同比特率的多个压缩视频比特流,并且每部分视频数据选择一个流以传输到显示设备。 流可以同时生成。 比特率根据操作条件和链路性能来确定。 响应于接收到的信息来动态地确定选择。 可以使用不同的压缩方案来压缩流,例如DPCM和/或变换压缩。 可以通过调整压缩方案,压缩参数,帧大小,帧速率,颜色空间和/或色度采样来动态调整比特率。 视频数据的部分可以包括连续的水平行或像素行的一部分,全帧和/或缩放的帧。 信息被传送到显示装置以控制减压操作。 显示装置接收,解压缩,重建和显示所选择的比特流。
    • 102. 发明授权
    • SIMD supporting filtering in a video decoding system
    • SIMD支持在视频解码系统中进行滤波
    • US08516026B2
    • 2013-08-20
    • US10786195
    • 2004-02-25
    • Alexander G. MacInnisVivian Hsiun
    • Alexander G. MacInnisVivian Hsiun
    • G06F17/10
    • H04N19/42H03H17/02H04N19/80
    • A filter engine that performs filtering operations on an input data stream comprising blocks of data. The filter engine includes a first memory element, a second memory element, a first shift register, a second shift register and a processor. The first and second memory elements store blocks of data to be processed. The first shift register receives and stores blocks of data from the first memory element. The second shift register receives and stores blocks of data from the second memory element. The first and second shift registers are adapted to selectively shift their contents by a predetermined number of bits corresponding to the size of a data element, such as a pixel. The processor receives blocks of data from the first and second shift registers and simultaneously performs filtering operations on blocks of data from the first and second shift registers.
    • 对包括数据块的输入数据流执行滤波操作的滤波器引擎。 滤波器引擎包括第一存储器元件,第二存储器元件,第一移位寄存器,第二移位寄存器和处理器。 第一和第二存储器元件存储要处理的数据块。 第一移位寄存器接收并存储来自第一存储器元件的数据块。 第二移位寄存器接收并存储来自第二存储元件的数据块。 第一和第二移位寄存器适于选择性地将它们的内容移位与数据元素(诸如像素)的大小相对应的预定数量的位。 处理器从第一移位寄存器和第二移位寄存器接收数据块,同时对来自第一移位寄存器和第二移位寄存器的数据块执行滤波操作。
    • 109. 发明申请
    • SYSTEM AND METHOD OF PERFORMING DIGITAL MULTI-CHANNEL AUDIO SIGNAL DECODING
    • 数字多通道音频信号解码的系统和方法
    • US20110211658A1
    • 2011-09-01
    • US13069090
    • 2011-03-22
    • David Chaohua WuHoang NhuRuss LambertAlexander G. MacInnisRonald Crochiere
    • David Chaohua WuHoang NhuRuss LambertAlexander G. MacInnisRonald Crochiere
    • H04L27/06
    • H04N7/06H04H20/48H04N5/602H04N5/607H04N21/8106H04N21/85406H04R5/04
    • A system and method are disclosed for performing digital multi-channel decoding of a BTSC composite audio signal. Each subsequent stage of the digital multi-channel decoding process is performed at the lowest sampling rate that yields acceptable performance for that stage. Analog-to-digital conversion of the composite audio signal is performed first to generate a composite digital audio signal. After analog-to-digital conversion, all signal processing may be performed in the digital domain. The composite digital audio signal is digitally filtered to frequency compensate for variations caused by previous stages of processing, including IF demodulation. Digital channel demodulation and filtering are performed to isolate single channels of the composite digital audio signal such as SAP, L−R, and L+R channels. SAP and L−R channels are DBX decoded resulting in corresponding decoded signals using a unique combination of digital filters that are an efficient translation of a corresponding combination of analog filters. The decoded L−R channel and the L+R channel are re-matrixed to form left and right stereo signals. Any of the SAP signal, left and right stereo signals, and L+R channel signal may be sample rate converted and output at a standard audio output rate.
    • 公开了一种用于对BTSC复合音频信号执行数字多声道解码的系统和方法。 数字多通道解码过程的每个后续阶段以最低的采样率执行,该阶段产生可接受的性能。 首先执行复合音频信号的模数转换以产生复合数字音频信号。 在模数转换之后,可以在数字域中执行所有的信号处理。 复合数字音频信号被数字滤波,以对由先前的处理阶段(包括IF解调)引起的变化进行频率补偿。 执行数字信道解调和滤波以隔离诸如SAP,L-R和L + R信道的复合数字音频信号的单个信道。 SAP和L-R通道被DBX解码,从而产生相应的解码信号,其使用数字滤波器的独特组合,其是模拟滤波器的相应组合的有效转换。 解码的L-R信道和L + R信道被重新矩阵化以形成左和右立体声信号。 SAP信号,左立体声信号和右立体声信号以及L + R信道信号中的任何一个可以采样率转换并以标准音频输出速率输出。