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1. 发明申请

US20130250975A1 METHOD AND DEVICE FOR PACKETIZING A VIDEO STREAM 审中-公开
标题翻译：用于封装视频流的方法和装置
公开(公告)号：US20130250975A1
公开(公告)日：2013-09-26
申请号：US13990903
申请日：2011-01-24
申请人： Sang Woo Ahn , Yong Ju Cho
发明人： Sang Woo Ahn , Yong Ju Cho
IPC分类号： H04L29/06
CPC分类号： H04L69/04 , H04N21/23605 , H04N21/816 , H04N21/8453 , H04N21/8547
摘要： A digital broadcasting system provides a method and device for packetizing a video stream. The packetizing device includes: a video frame check block for classifying an encoded video stream according to the frame type; a header setting block for setting a packet header for each of the classified frames; and a packetizing block for packetizing a video frame on the basis of the set packet header. The frame type may be one of an intra-coded (I) frame, a predicted (P) frame, and a bi-predictive (B) frame. Since a digital broadcasting stream is efficiently packetized, overhead due to a typical synchronization packet may be reduced, and accordingly, bandwidth may be efficiently used.
摘要翻译：数字广播系统提供了一种用于打包视频流的方法和设备。打包装置包括：视频帧检查块，用于根据帧类型对编码的视频流进行分类; 标题设置块，用于为每个分类帧设置分组报头; 以及分组化块，用于基于所设置的分组报头对视频帧进行分组。帧类型可以是帧内编码（I）帧，预测（P）帧和双预测（B）帧之一。由于数字广播流被高效地分组化，所以可以减少由于典型的同步分组引起的开销，因此可以有效地使用带宽。

2. 发明申请

US20140007175A1 METHOD AND APPARATUS FOR ESTIMATING WIRELESS CHANNEL STATUS USING ADDITIONAL INFORMATION, AND METHOD FOR ADJUSTING CODING RATE IN WIRELESS NETWORK USING METHOD AND APPARATUS 审中-公开
标题翻译：使用附加信息估计无线信道状态的方法和装置，以及使用方法和装置在无线网络中调整编码率的方法
公开(公告)号：US20140007175A1
公开(公告)日：2014-01-02
申请号：US14005297
申请日：2012-03-16
申请人： Yong Ju Cho , Ji Hun Cha
发明人： Yong Ju Cho , Ji Hun Cha
IPC分类号： H04N21/6379
CPC分类号： H04N21/6379 , H04N21/2662 , H04N21/43637 , H04N21/44209 , H04N21/6131 , H04N21/6377
摘要： The invention relates to method for estimating wireless channel status in wireless network, which is to be performed by client device connected to server for transmitting a video packet stream through a wired/wireless network, comprising: a step of estimating a bit error rate using additional information on a received video packet; and a step of estimating the channel capacity of the wireless network using the estimated bit error rate. The server receives, from the client device, feedback on the estimated channel capacity information or channel condition information of the wireless network, and adjusts the optimal video coding rate or the optimal source coding rate in a wireless network. Accordingly, the deterioration in the video quality of the video stream being received in the client device in real-time may be prevented to thereby improve the quality of service (QoS) of the video being received through a wireless network.
摘要翻译：本发明涉及用于估计无线网络中的无线信道状态的方法，该无线网络将由连接到服务器的客户端设备通过有线/无线网络发送视频分组流来执行，该方法包括：使用附加的估计误码率的步骤关于接收到的视频分组的信息; 以及使用估计的误码率来估计无线网络的信道容量的步骤。服务器从客户端装置接收对无线网络的估计信道容量信息或信道状况信息的反馈，并且调整无线网络中的最佳视频编码率或最佳源编码率。因此，可以防止在客户端设备中实时接收的视频流的视频质量的恶化，从而提高通过无线网络接收的视频的服务质量（QoS）。

3. 发明授权

US08654834B2 Method for tuning coding rate and applying unequal error protection for adaptive video transmission, and video transmission/reception apparatus using the method 有权
标题翻译：用于调整编码率并对自适应视频传输应用不相等错误保护的方法，以及使用该方法的视频发送/接收装置
公开(公告)号：US08654834B2
公开(公告)日：2014-02-18
申请号：US12652123
申请日：2010-01-05
申请人： Yong Ju Cho , Jin Woo Hong , Han Kyu Lee
发明人： Yong Ju Cho , Jin Woo Hong , Han Kyu Lee
IPC分类号： H04B1/66 , H04N7/12
CPC分类号： H04N19/67
摘要： Provided are a method of tuning a coding rate and applying an unequal error protection for an adaptive video transmission, and a video transmission/reception apparatus using the method. The video transmission apparatus may include: a coding rate tuner to predict, as a channel capacity of a subsequent channel interval, an estimated channel capacity value fed back from the video reception apparatus, and to tune video and channel coding rates within the predicted channel capacity; a video encoder to perform video encoding of video frames at the tuned video coding rate, and to generate a video packet; and a forward error correction (FEC) encoder to apply the unequal error protection based on a length of the video packet and a type of the video frames included in the video packet, and to perform channel encoding of the video packet at the tuned channel coding rate to generate a bitstream.
摘要翻译：提供了一种调整编码率并对自适应视频传输应用不相等的错误保护的方法，以及使用该方法的视频发送/接收装置。视频发送装置可以包括：编码率调谐器，用于预测作为后续信道间隔的信道容量的从视频接收装置反馈的估计信道容量值，以及调整预测信道容量内的视频和信道编码率 ; 视频编码器，用于以调谐的视频编码速率执行视频帧的视频编码，并产生视频分组; 以及前向纠错（FEC）编码器，用于基于视频分组的长度和包括在视频分组中的视频帧的类型来应用不相等的错误保护，并且以调谐的信道编码执行视频分组的信道编码以产生比特流。

4. 发明授权

US08010566B2 Extended multimedia file structure and multimedia file producting method and multimedia file executing method 失效
标题翻译：扩展多媒体文件结构和多媒体文件制作方法及多媒体文件执行方式
公开(公告)号：US08010566B2
公开(公告)日：2011-08-30
申请号：US11576485
申请日：2005-10-13
申请人： Yong Ju Cho , Jae Gon Kim , Jin Woo Hong , Young Kwon Lim , Moon Sup Song , Hyoung Joong Kim
发明人： Yong Ju Cho , Jae Gon Kim , Jin Woo Hong , Young Kwon Lim , Moon Sup Song , Hyoung Joong Kim
IPC分类号： G06F17/30
CPC分类号： H04N21/8586 , G11B27/002 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/3027 , H04N21/235 , H04N21/435 , H04N21/84 , H04N21/8455 , H04N21/85406
摘要： Provided are an extended multimedia file structure, a multimedia file producing method, and a multimedia file executing method. The extended multimedia file structure includes: a metadata section including a media initial object descriptor (IOD) field and at least one track pointer; and a media data section including at least one media block indicated by the track pointer, wherein the at least one track pointer indicates a detail media resource contained in an embedded multimedia file or an external multimedia file.
摘要翻译：提供了扩展多媒体文件结构，多媒体文件制作方法和多媒体文件执行方法。扩展多媒体文件结构包括：包括媒体初始对象描述符（IOD）字段和至少一个轨道指针的元数据部分; 以及媒体数据部分，包括由轨道指针指示的至少一个媒体块，其中所述至少一个轨道指针指示包含在嵌入式多媒体文件或外部多媒体文件中的详细媒体资源。

5. 发明申请

US20090024644A1 Extended Multimedia File Structure and Multimedia File Producting Method and Multimedia File Executing Method 失效
标题翻译：扩展多媒体文件结构和多媒体文件制作方法及多媒体文件执行方法
公开(公告)号：US20090024644A1
公开(公告)日：2009-01-22
申请号：US11576485
申请日：2005-10-13
申请人： Yong Ju Cho , Jae Gon Kim , Jin Woo Hong , Young Kwon Lim , Moon Sup Song , Hyoung Joong Kim
发明人： Yong Ju Cho , Jae Gon Kim , Jin Woo Hong , Young Kwon Lim , Moon Sup Song , Hyoung Joong Kim
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： H04N21/8586 , G11B27/002 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/3027 , H04N21/235 , H04N21/435 , H04N21/84 , H04N21/8455 , H04N21/85406
摘要： Provided are an extended multimedia file structure, a multimedia file producing method, and a multimedia file executing method. The extended multimedia file structure includes: a metadata section including a media initial object descriptor (IOD) field and at least one track pointer; and a media data section including at least one media block indicated by the track pointer, wherein the at least one track pointer indicates a detail media resource contained in an embedded multimedia file or an external multimedia file.
摘要翻译：提供了扩展多媒体文件结构，多媒体文件制作方法和多媒体文件执行方法。扩展多媒体文件结构包括：包括媒体初始对象描述符（IOD）字段和至少一个轨道指针的元数据部分; 以及媒体数据部分，其包括由轨道指针指示的至少一个媒体块，其中所述至少一个轨道指针指示包含在嵌入式多媒体文件或外部多媒体文件中的详细媒体资源。

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