利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.035 秒)

    Low-latency random access to compressed video
    2.
    发明授权
    Low-latency random access to compressed video 有权
    低延迟随机访问压缩视频

    公开(公告)号：US08327411B2

    公开(公告)日：2012-12-04

    申请号：US10726306

    申请日：2003-12-01

    申请人： Louis J. Kerofsky

    发明人： Louis J. Kerofsky

    IPC分类号： H04N7/173 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

    CPC分类号： H04N21/4384 ,  H04N5/4401 ,  H04N5/50 ,  H04N21/23439 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/44016 ,  H04N21/8455

    摘要： A method and apparatus for achieving low-latency, and rapidly attained high-resolution, access reception for transmitted and received video data involving the pre-transmission dividing of a source video stream into two downstream-deliverable data streams that differ by, on the one hand, low-latency, low-resolution characteristics for one stream, and on the other hand, higher-latency, higher-resolution characteristics for the other stream. Latency in these streams is determined by the frame spacing created between stream-inserted marker I-frames. The divided streams are multiplexed and transmitted. At the receiving end, monitoring, selecting and video output-signal switching take place under rules whereby the first-encountered marker frame in either stream directs that stream to provide the first content for the video output signal. If the first-encountered marker resides in the higher-resolution stream, the process ends. If it is the lower-resolution stream, a switch to the higher-resolution stream takes place on detection of the next-encountered marker frame in the higher-resolution stream.

    摘要翻译： 一种用于实现低延迟和快速获得的用于发送和接收的视频数据的高分辨率访问接收的方法和装置，该视频数据涉及将源视频流的预传输划分成两个不同的可下载的数据流 一个流的低延迟，低分辨率特性，另一方面，对于其他流，更高延迟，更高分辨率的特性。 这些流中的延迟由流插入标记I帧之间产生的帧间隔确定。 划分的流被复用并传输。 在接收端，监视，选择和视频输出信号切换在规则下进行，由此任一流中的首次遇到的标记帧指示该流提供视频输出信号的第一内容。 如果首次遇到的标记位于较高分辨率的流中，则该过程结束。 如果是较低分辨率的流，则在更高分辨率流中检测到下一次遇到的标记帧时，将切换到较高分辨率的流。

    Multi-symbol/coefficient decode operation for Huffman codes
    9.
    发明授权
    Multi-symbol/coefficient decode operation for Huffman codes 有权
    霍夫曼码的多符号/系数解码操作

    公开(公告)号：US06956511B2

    公开(公告)日：2005-10-18

    申请号：US10961453

    申请日：2004-10-07

    申请人： Renjit T. Thomas ,  Louis J. Kerofsky

    发明人： Renjit T. Thomas ,  Louis J. Kerofsky

    IPC分类号： H03M7/42 ,  H03M7/46 ,  H03M7/40

    CPC分类号： H03M7/46 ,  H03M7/425

    摘要： Method and apparatus for use in Huffman decoding are described. In exemplary systems, a JPEG Huffman decoder is capable of simultaneously decoding multiple coefficients and/or symbols in a single table lookup. Methods for designing, building, and using such a table are included. Other embodiments are described and claimed.

    摘要翻译： 描述了用于霍夫曼解码的方法和装置。 在示例性系统中，JPEG霍夫曼解码器能够在单个表查找中同时解码多个系数和/或符号。 包括设计，建造和使用这种表格的方法。 描述和要求保护其他实施例。