专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06980594B2 Generation of MPEG slow motion playout 有权
标题翻译：生成MPEG慢动作播放
公开(公告)号：US06980594B2
公开(公告)日：2005-12-27
申请号：US09951853
申请日：2001-09-11
申请人： Jie Wang , Michel Noury , Daniel Gardere , Sebastien Keller , Sorin Faibish
发明人： Jie Wang , Michel Noury , Daniel Gardere , Sebastien Keller , Sorin Faibish
IPC分类号： G06T9/00 , G11B27/031 , G11B27/032 , G11B27/034 , H04N5/262 , H04N5/783 , H04N7/26 , H04N7/46 , H04N7/50 , H04N9/804 , H04N7/12
CPC分类号： H04N5/783 , G11B27/031 , G11B27/032 , G11B27/034 , G11B2220/20 , G11B2220/90 , H04N5/262 , H04N9/8042 , H04N19/114 , H04N19/177 , H04N19/40 , H04N19/577 , H04N19/61
摘要： MPEG coded video data includes groups of pictures (GOPs). Each group of pictures includes one or more I-frames and a plurality of B- or P-frames. To produce an MPEG slow-forward coded video stream, the coding type of each frame in the MPEG coded video data is identified, and freeze frames are inserted as a predefined function of the identified coding type and as a predefined function of a desired slow down factor. In a preferred implementation, for a slow-down factor of n, for each original I- or P-frame, (n−1) backward-predicted freeze frames are inserted, and for each original B-frame, (n−1) copies of the original B-frames are added, and a selected amount of padding is added to each copy of each original B-frame in order to obtain a normal play bit rate and avoid video buffer overflow or underflow.
摘要翻译： MPEG编码的视频数据包括图像组（GOP）。每组图像包括一个或多个I帧和多个B帧或P帧。为了产生MPEG慢速编码视频流，识别MPEG编码视频数据中的每一帧的编码类型，并且将冻结帧作为所识别的编码类型的预定函数插入，并作为期望的减速的预定义函数因子。在优选的实施方案中，对于每个原始I或P帧的减速因子n，插入（n-1）个反向预测的冻结帧，并且对于每个原始B帧，（n-1）添加原始B帧的副本，并且为每个原始B帧的每个副本添加所选择的填充量，以便获得正常的播放比特率并避免视频缓冲器溢出或下溢。

2. 发明授权

US07023924B1 Method of pausing an MPEG coded video stream 有权
标题翻译：暂停MPEG编码视频流的方法
公开(公告)号：US07023924B1
公开(公告)日：2006-04-04
申请号：US09750554
申请日：2000-12-28
申请人： Sebastian Keller , Daniel Gardere , Jie Wang , Michel Noury , Sorin Faibish
发明人： Sebastian Keller , Daniel Gardere , Jie Wang , Michel Noury , Sorin Faibish
IPC分类号： H04N7/12
CPC分类号： H04N21/44016 , H04N21/23424 , H04N21/2368 , H04N21/4341
摘要： To produce a paused MPEG coded video stream from an original MPEG coded video stream, an I frame is extracted from the original stream, and a Group of Pictures for a “pause” (a pause GOP) is constructed containing the extracted I frame, some “frozen” frames, and padding. Each “frozen” frame is a P frame that repeats the I frame. When a pause is requested in the original stream, a seamless transition is made from the I frame to the pause GOP, and the pause GOP is played in a loop until a resume is requested. To resume, the pause GOP is completed and a seamless transition is made to continue in the original stream from the I frame where the pause had begun.
摘要翻译：为了从原始MPEG编码视频流产生暂停的MPEG编码视频流，从原始流中提取I帧，并且构造一组用于“暂停”（暂停GOP）的图像，其包含提取的I帧，一些 “冻结”帧和填充。每个“冻结”帧是重复I帧的P帧。当在原始流中请求暂停时，从I帧到暂停GOP进行无缝转换，并且循环播放暂停GOP直到请求恢复。要恢复，暂停GOP完成，并且从暂停开始的I帧继续原始流中的无缝转换。

3. 发明授权

US06871006B1 Processing of MPEG encoded video for trick mode operation 有权
标题翻译：用于特技模式操作的MPEG编码视频的处理
公开(公告)号：US06871006B1
公开(公告)日：2005-03-22
申请号：US09608919
申请日：2000-06-30
申请人： Seyfullah H. Oguz , Sorin Faibish , Daniel Gardere , Michel Noury , Wayne W. Duso , Peter Bixby , John Forecast
发明人： Seyfullah H. Oguz , Sorin Faibish , Daniel Gardere , Michel Noury , Wayne W. Duso , Peter Bixby , John Forecast
IPC分类号： G11B27/031 , G11B27/034 , H04N5/783 , H04N7/173 , H04N7/24 , H04N7/26 , H04N7/46 , H04N9/804 , H04N9/82 , H04N5/76
CPC分类号： H04N21/6587 , G11B27/031 , G11B27/034 , H04N5/783 , H04N7/17336 , H04N9/8042 , H04N9/8227 , H04N19/132 , H04N19/18 , H04N19/59 , H04N19/70 , H04N19/93 , H04N21/23424 , H04N21/234363 , H04N21/234381 , H04N21/23439 , H04N21/2662 , H04N21/44016
摘要： Original-quality MPEG coded video is processed to produce reduced-quality MPEG coded video for trick mode operation by removing non-zero AC DCT coefficients from the 8×8 blocks of I-frames of the MPEG coded video to produce I-frames of reduced-quality MPEG coded video, and inserting freeze frames in the reduced-quality MPEG coded video. Preferably, the coded video is stored in a main file, a fast-forward file and a fast-reverse file. The fast forward file and the fast reverse files contain reduced-quality I frames corresponding to original-quality I frames in the main file. A reading of the main file produces an MPEG transport stream for an audio-visual presentation at a normal rate, a reading of the fast-forward file produces an MPEG transport stream of the audio-visual presentation in a forward direction at a fast rate, and a reading of the fast-reverse file produces an MPEG transport stream of the audio-visual presentation in a reverse direction at a fast rate. Preferably, the files share a volume that includes at least one GOP index associating the corresponding I frames of the files.
摘要翻译：处理原始质量的MPEG编码视频，以通过从MPEG编码视频的I帧的8×8块中去除非零AC DCT系数来产生用于特技模式操作的低质量MPEG编码视频，以产生低质量的I帧 MPEG编码视频，并且在缩减质量的MPEG编码视频中插入冻结帧。优选地，编码视频被存储在主文件，快进文件和快速反转文件中。快进文件和快速反转文件包含与主文件中的原始质量I帧相对应的低质量I帧。主文件的读取以正常速率产生用于视听呈现的MPEG传输流，快进文件的读取以快速的速率产生前向方向的视听呈现的MPEG传输流，并且快速反转文件的读取以快速的速率产生相反方向的视听呈现的MPEG传输流。优选地，文件共享包含关联文件的相应I帧的至少一个GOP索引的卷。

4. 发明授权

US06678332B1 Seamless splicing of encoded MPEG video and audio 有权
标题翻译：编码MPEG视频和音频的无缝拼接
公开(公告)号：US06678332B1
公开(公告)日：2004-01-13
申请号：US09540347
申请日：2000-03-31
申请人： Daniel Gardere , John Forecast , Peter Bixby , Sorin Faibish , Wayne W. Duso , Seyfullah H. Oguz , Sebastian Keller , Michel Noury , Jean Louis Rochette
发明人： Daniel Gardere , John Forecast , Peter Bixby , Sorin Faibish , Wayne W. Duso , Seyfullah H. Oguz , Sebastian Keller , Michel Noury , Jean Louis Rochette
IPC分类号： H04B166
CPC分类号： H04N21/23424 , H04N21/23608 , H04N21/41407 , H04N21/44016
摘要： Predictive analysis is performed upon encoded digital motion video (such as an MPEG Transport Stream) to facilitate real-time splicing. The predictive analysis includes estimation of upper and lower bounds of the data levels in a decoder's video and audio buffers for splicing in such a way as to prevent buffer overflow and underflow. This enables buffer management techniques including padding or stuffing, micro-restamping, freeze or repeat of frames, skip or drop of frames, alignment of audio with video. The predictive analysis also includes analysis of the structure of the encoded audio including audio access units (AAUs) and compression windows (AFs), prediction in the compressed domain of initial conditions of the decoder buffer levels for every single Elementary Stream (ES) component of a Transport Stream (TS), and identification of valid splicing In Points and Out Points based on the predicted buffer levels without any special encoder. This permits splicing of different compressed audio types without consideration of the details of the compression mechanism. The predictive analysis may also include recommendations or marking. The analysis is performed on ingest of the data as a pre-processing in preparation for splicing of a new file on early queuing in a data storage system before streaming.
摘要翻译：在编码的数字运动视频（例如MPEG传输流）上执行预测分析以便于实时拼接。预测分析包括在解码器的视频和音频缓冲器中估计数据电平的上限和下限以进行拼接，以防止缓冲器溢出和下溢。这使得能够实现缓冲器管理技术，包括填充或填充，微型停止，帧的冻结或重复，帧的跳过或掉落，音频与视频的对齐。预测分析还包括对包括音频访问单元（AAU）和压缩窗口（AF）的编码音频的结构的分析，在压缩域中对每个单个基本流（ES）分量的解码器缓冲器级别的初始条件的预测传输流（TS），以及基于没有任何特殊编码器的预测缓冲器级别来识别有效拼接点和点。这允许不考虑压缩机构的细节来剪接不同的压缩音频类型。预测分析还可能包括建议或标记。对数据进行分析，作为预处理，准备在流媒体之前在数据存储系统的早期排队中拼接新文件。

5. 发明授权

US06907081B2 MPEG encoder control protocol for on-line encoding and MPEG data storage 有权
标题翻译：用于在线编码和MPEG数据存储的MPEG编码器控制协议
公开(公告)号：US06907081B2
公开(公告)日：2005-06-14
申请号：US09823024
申请日：2001-03-30
申请人： Raymond Mantchala , John Forecast , Peter Bixby , Sorin Faibish , Michel Noury , Wayne W. Duso
发明人： Raymond Mantchala , John Forecast , Peter Bixby , Sorin Faibish , Michel Noury , Wayne W. Duso
IPC分类号： G06T9/00 , H04N7/26 , H04N21/234 , H04N21/44 , H04N21/845 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/46 , H04N19/87 , H04N21/23412 , H04N21/23424 , H04N21/44016 , H04N21/8455
摘要： Coded video from an on-line MPEG video encoder is stored as a clip in a video server or is otherwise received in the video server and prepared or used for splicing. In order to reduce apparent frame inaccuracy that may result from the splicing process, the on-line MPEG video encoder and the server are coordinated so that the group-of-picture (GOP) structure in the encoder provides specified In-points and Out-points that are valid and desirable for splicing. An encoder control protocol is also provided for remote control of the on-line MPEG video encoder in order to coordinate the on-line MPEG video encoder with the video server.
摘要翻译：来自在线MPEG视频编码器的编码视频作为剪辑存储在视频服务器中，否则被接收在视频服务器中并且准备或用于拼接。为了减少拼接过程可能导致的视差帧错误，在线MPEG视频编码器和服务器被协调，使得编码器中的图像组（GOP）结构提供指定的In点和Out- 拼接有效和可取的点。还提供编码器控制协议用于远程控制在线MPEG视频编码器，以便在线MPEG视频编码器与视频服务器协调。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式