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1. 发明授权

US08473997B2 Channel changing method, apparatus, and system 有权
标题翻译：频道切换方法，装置和系统
公开(公告)号：US08473997B2
公开(公告)日：2013-06-25
申请号：US13566647
申请日：2012-08-03
申请人： Zhigang Qiu , Kai Guo , Wenle Yang , Xia Qin , Hewen Zheng
发明人： Zhigang Qiu , Kai Guo , Wenle Yang , Xia Qin , Hewen Zheng
IPC分类号： H04N7/173
CPC分类号： H04N21/4384 , H04L65/4084 , H04L65/607 , H04L65/80 , H04N21/222 , H04N21/23614 , H04N21/2408 , H04N21/26616 , H04N21/4622
摘要： Embodiments of the present disclosure provide a channel changing method, apparatus, and system. A network side device records in real time a timestamp of a media packet of a multicast media stream which enters a buffer, and a key frame which enters the buffer; when a terminal's channel changing request has been detected, obtains a first timestamp of a media packet which enters the buffer at a channel changing request moment, and a second timestamp of a media packet in which a key frame which is of the target channel and is the last to enter the buffer is located in the media packet; determines a timestamp difference between the first timestamp and the second timestamp; and transmits the timestamp difference and a burst media stream of the target channel to the terminal. In the embodiments of the present disclosure, a delay in playing the multicast media stream by the terminal is reduced.
摘要翻译：本公开的实施例提供了一种信道改变方法，装置和系统。网络侧设备实时记录进入缓冲器的多播媒体流的媒体分组的时间戳和进入缓冲器的关键帧; 当已经检测到终端的信道改变请求时，获取在信道改变请求时刻进入缓冲区的媒体分组的第一时间戳，以及其中存在目标信道的关键帧并且是目标信道的媒体分组的第二时间戳最后进入缓冲区位于媒体包中; 确定所述第一时间戳和所述第二时间戳之间的时间戳差; 并将目标信道的时间戳差和突发媒体流发送到终端。在本公开的实施例中，减少了由终端播放组播媒体流的延迟。

2. 发明申请

US20120304236A1 CHANNEL CHANGING METHOD, APPARATUS, AND SYSTEM 有权
标题翻译： CHANNEL CHANGING方法，设备和系统
公开(公告)号：US20120304236A1
公开(公告)日：2012-11-29
申请号：US13566647
申请日：2012-08-03
申请人： Zhigang Qiu , Kai Guo , Wenle Yang , Xia Qin , Hewen Zheng
发明人： Zhigang Qiu , Kai Guo , Wenle Yang , Xia Qin , Hewen Zheng
IPC分类号： H04N21/63
CPC分类号： H04N21/4384 , H04L65/4084 , H04L65/607 , H04L65/80 , H04N21/222 , H04N21/23614 , H04N21/2408 , H04N21/26616 , H04N21/4622
摘要： Embodiments of the present disclosure provide a channel changing method, apparatus, and system. A network side device records in real time a timestamp of a media packet of a multicast media stream which enters a buffer, and a key frame which enters the buffer; when a terminal's channel changing request has been detected, obtains a first timestamp of a media packet which enters the buffer at a channel changing request moment, and a second timestamp of a media packet in which a key frame which is of the target channel and is the last to enter the buffer is located in the media packet; determines a timestamp difference between the first timestamp and the second timestamp; and transmits the timestamp difference and a burst media stream of the target channel to the terminal. In the embodiments of the present disclosure, a delay in playing the multicast media stream by the terminal is reduced.
摘要翻译：本公开的实施例提供了一种信道改变方法，装置和系统。网络侧设备实时记录进入缓冲器的多播媒体流的媒体分组的时间戳和进入缓冲器的关键帧; 当已经检测到终端的信道改变请求时，获取在信道改变请求时刻进入缓冲区的媒体分组的第一时间戳，以及其中存在目标信道的关键帧并且是目标信道的媒体分组的第二时间戳最后进入缓冲区位于媒体包中; 确定所述第一时间戳和所述第二时间戳之间的时间戳差; 并将目标信道的时间戳差和突发媒体流发送到终端。在本公开的实施例中，减少了由终端播放组播媒体流的延迟。

3. 发明申请

US20110219414A1 METHOD, APPARATUS, AND SYSTEM FOR SWITCHING CHANNELS 审中-公开
标题翻译：用于切换通道的方法，装置和系统
公开(公告)号：US20110219414A1
公开(公告)日：2011-09-08
申请号：US13109153
申请日：2011-05-17
申请人： Kai GUO , Xia Qin , Hewen Zheng
发明人： Kai GUO , Xia Qin , Hewen Zheng
IPC分类号： H04N7/173
CPC分类号： H04L65/1069 , H04L12/1881 , H04L65/1006 , H04L65/4076 , H04N21/23106 , H04N21/2393 , H04N21/26616 , H04N21/2668 , H04N21/4383 , H04N21/6125 , H04N21/6405 , H04N21/6408
摘要： A method, an apparatus and a system for switching channels are disclosed. The method includes: buffering a multicast Internet Protocol (IP) packet of a live channel; receiving a channel switching request sent by a client for switching to the live channel, and pushing the buffered multicast IP packet to the client; and judging whether the pushed multicast IP packet is synchronous to a real-time multicast IP packet of the live channel; and stopping pushing the buffered multicast IP packet to the client and sending the real-time multicast IP packet to the client if the pushed multicast IP packet is synchronous to the real-time multicast IP packet. The embodiments of the present invention involve no modification of the user terminal and improve the universal applicability and extensibility of the channel switching solution.
摘要翻译：公开了用于切换信道的方法，装置和系统。该方法包括：缓存直播频道的组播互联网协议（IP）数据包; 接收由客户端发送的用于切换到直播信道的信道切换请求，并将缓存的多播IP分组推送到客户端; 判断推送的组播IP分组是否与实况频道的实时组播IP分组同步; 如果推送的组播IP分组与实时组播IP分组同步，则停止将缓冲的组播IP分组推送到客户端并将实时多播IP分组发送到客户端。本发明的实施例不涉及用户终端的修改，并且提高了信道切换解决方案的通用适用性和可扩展性。

4. 发明申请

US20120036545A1 METHOD AND APPARATUS FOR OBTAINING ADDRESS OF VIDEO TRANSMISSION MANAGEMENT SERVER 审中-公开
标题翻译：用于获取视频传输管理服务器地址的方法和装置
公开(公告)号：US20120036545A1
公开(公告)日：2012-02-09
申请号：US13248957
申请日：2011-09-29
申请人： Youyuan Cai , Haizhou Xiang , Hewen Zheng , Zhigang Qiu
发明人： Youyuan Cai , Haizhou Xiang , Hewen Zheng , Zhigang Qiu
IPC分类号： H04N7/173
CPC分类号： H04N21/64322 , H04N21/2265 , H04N21/643
摘要： A method, a system and an apparatus for obtaining an address of a video transmission management server are disclosed. The method includes: sending a request for obtaining location information of the video transmission management server to a host parameter configuration server, where the video transmission management server is an ARQ server, a FCC server or a FEC server, or any combination thereof, and the host parameter configuration server is a DHCP server or a PPP server; and receiving a response returned by the host parameter configuration server, and obtaining the location information of the video transmission management server. In this way, the interaction procedure is simplified and the user experience is improved.
摘要翻译：公开了一种用于获得视频传输管理服务器的地址的方法，系统和装置。该方法包括：向主机参数配置服务器发送获取视频传输管理服务器的位置信息的请求，其中视频传输管理服务器是ARQ服务器，FCC服务器或FEC服务器，或其任何组合，主机参数配置服务器是DHCP服务器或PPP服务器; 以及接收由主机参数配置服务器返回的响应，并获得视频传输管理服务器的位置信息。以这种方式，简化了交互过程，提高了用户体验。

5. 发明授权

US08730800B2 Method, apparatus, and system for transporting video streams 有权
标题翻译：用于传输视频流的方法，装置和系统
公开(公告)号：US08730800B2
公开(公告)日：2014-05-20
申请号：US13109715
申请日：2011-05-17
申请人： Yongsheng Xun , Hewen Zheng , Xia Qin
发明人： Yongsheng Xun , Hewen Zheng , Xia Qin
IPC分类号： H04J1/16
CPC分类号： H04L47/10 , H04L47/2416 , H04L47/32 , H04N21/2381 , H04N21/6125 , H04N21/6437 , H04N21/64738 , H04N21/64792
摘要： A method, an apparatus, and a system for transporting video streams are disclosed herein to handle video streams of different coding mechanisms and different encapsulation mechanisms intelligently according to visual sensitivity. The method includes: assessing a video data packet to gain visual sensitivity identifier information of the video data packet; adding the visual sensitivity identifier information into the video data packet; and handling the video data packet according to the visual sensitivity identifier information while transporting the video data packet. The embodiments of the present invention are applicable to transporting of network video streams.
摘要翻译：本文公开了用于传输视频流的方法，装置和系统，以根据视觉灵敏度来智能地处理不同编码机制的视频流和不同的封装机制。该方法包括：评估视频数据包以获得视频数据包的视觉灵敏度标识符信息; 将视觉灵敏度标识符信息添加到视频数据包中; 以及在传送视频数据包的同时根据视觉灵敏度标识符信息处理视频数据包。本发明的实施例可应用于网络视频流的传输。

6. 发明申请

US20110274121A1 METHOD, APPARATUS, AND SYSTEM FOR TRANSPORTING VIDEO STREAMS 有权
标题翻译：用于传输视频流的方法，装置和系统
公开(公告)号：US20110274121A1
公开(公告)日：2011-11-10
申请号：US13109715
申请日：2011-05-17
申请人： Yongsheng Xun , Hewen Zheng , Xia Qin
发明人： Yongsheng Xun , Hewen Zheng , Xia Qin
IPC分类号： H04N7/24
CPC分类号： H04L47/10 , H04L47/2416 , H04L47/32 , H04N21/2381 , H04N21/6125 , H04N21/6437 , H04N21/64738 , H04N21/64792
摘要： A method, an apparatus, and a system for transporting video streams are disclosed herein to handle video streams of different coding mechanisms and different encapsulation mechanisms intelligently according to visual sensitivity. The method includes: assessing a video data packet to gain visual sensitivity identifier information of the video data packet; adding the visual sensitivity identifier information into the video data packet; and handling the video data packet according to the visual sensitivity identifier information while transporting the video data packet. The embodiments of the present invention are applicable to transporting of network video streams.
摘要翻译：本文公开了用于传输视频流的方法，装置和系统，以根据视觉灵敏度来智能地处理不同编码机制的视频流和不同的封装机制。该方法包括：评估视频数据包以获得视频数据包的视觉灵敏度标识符信息; 将视觉灵敏度标识符信息添加到视频数据包中; 以及在传送视频数据包的同时根据视觉灵敏度标识符信息处理视频数据包。本发明的实施例可应用于网络视频流的传输。

7. 发明授权

US08861372B2 Method and device for fast pushing unicast stream in fast channel change 有权
标题翻译：在快速通道改变中快速推送单播流的方法和设备
公开(公告)号：US08861372B2
公开(公告)日：2014-10-14
申请号：US13331579
申请日：2011-12-20
申请人： Xingfen Wu , Tianchang Yu , Zhiping Huang , Hewen Zheng
发明人： Xingfen Wu , Tianchang Yu , Zhiping Huang , Hewen Zheng
IPC分类号： H04N21/236 , H04L29/06 , H04N21/438 , H04N21/6405
CPC分类号： H04N21/4384 , H04L65/4076 , H04L65/4084 , H04L65/608 , H04L65/80 , H04N21/6405
摘要： The present invention discloses a method and a device for fast pushing a unicast stream in a Fast Channel Change (FCC), and relates to the field of Internet Protocol Television (IPTV). A server obtains a multicast join delay of a terminal, determines a minimum value of a data amount between a starting position of a fast unicast stream and a latest packet position according to the multicast join delay of the terminal, a decoding rate, a unicast push rate, and a lowest buffer data amount required for decoding, judges whether a latest I frame completely arrives according to a packet buffer state; and fast pushes the unicast stream starting from the latest I frame if the latest I frame completely arrives, and an arrived data amount starting from the latest I frame is greater than or equal to the minimum value.
摘要翻译：本发明公开了一种在快速通道改变（FCC）中快速推送单播流的方法和装置，涉及互联网协议电视（IPTV）领域。服务器获取终端的组播加入延迟，根据终端的组播加入延迟，解码速率，单播推送确定快速单播流的起始位置与最新分组位置之间的数据量的最小值速率和解码所需的最低缓冲器数据量，根据分组缓冲器状态来判断最新的I帧是否完全到达; 并且如果最新的I帧完全到达，则从最新的I帧开始快速推送单播流，并且从最新的I帧开始的到达数据量大于或等于最小值。

8. 发明授权

US08381013B2 Method and apparatus for detecting and handling peer faults in peer-to-peer network 有权
标题翻译：在对等网络中检测和处理对等故障的方法和装置
公开(公告)号：US08381013B2
公开(公告)日：2013-02-19
申请号：US12765628
申请日：2010-04-22
申请人： Hewen Zheng
发明人： Hewen Zheng
IPC分类号： G06F11/00
CPC分类号： H04L41/0677 , H04L67/104 , H04L67/1048 , H04L69/40
摘要： A method and apparatus for detecting and handling peer faults in a Peer-to-Peer network are disclosed. A peer in the P2P network receives a diagnosis request message; then detects whether a peer is faulty according to a preset fault detection method; and sends a diagnosis response message to a source peer that constructs the diagnosis request message or a peer specified by the diagnosis request message, where the diagnosis response message carries a detection result, and the detection result carries information about the faulty peer if the peer is detected as faulty. Through the technical solution under the present invention, the faults of the peers on the forwarding path in the P2P network can be detected.
摘要翻译：公开了一种用于检测和处理对等网络中的对等故障的方法和装置。 P2P网络中的对等体接收到诊断请求消息; 然后根据预设的故障检测方法检测对等体是否有故障; 并向构建诊断请求消息的源对等体发送诊断响应消息或由诊断请求消息指定的对等体，诊断响应消息携带检测结果，如果对等体为对等体，则检测结果携带有关对等体的信息检测到错误。通过本发明的技术方案，可以检测P2P网络中转发路径上的对等体的故障。

9. 发明授权

US08693333B2 Method, network node and system for suppressing lost packet retransmission 有权
标题翻译：用于抑制丢包重传的方法，网络节点和系统
公开(公告)号：US08693333B2
公开(公告)日：2014-04-08
申请号：US13097382
申请日：2011-04-29
申请人： Hewen Zheng , Yinliang Hu , Peilin Yang
发明人： Hewen Zheng , Yinliang Hu , Peilin Yang
IPC分类号： H04L12/26
CPC分类号： H04L1/1877 , H04L1/1685 , H04L1/1887
摘要： A method, a network node, and a system for suppressing lost packet retransmission are provided. The method includes: generating retransmission suppression information, in which the retransmission suppression information includes identification information of data packets requiring retransmission suppression; and transmitting the retransmission suppression information to a receiving node, in which the retransmission suppression information is used to enable the receiving node not to request retransmission when data packets corresponding to the identification information in the retransmission suppression information are lost after the receiving node receives the retransmission suppression information. The network node includes a generating module and a transmitting module. The system includes an intermediate node and a receiving node.
摘要翻译：提供了一种方法，网络节点和用于抑制丢失分组重传的系统。该方法包括：生成重传抑制信息，其中重传抑制信息包括需要重传抑制的数据分组的识别信息; 并且在所述接收节点接收到所述重传之后丢失所述重传抑制信息的发送抑制信息被发送到接收节点，所述接收节点使用所述重传抑制信息来使得所述接收节点不重发次数，抑制信息。网络节点包括生成模块和发送模块。该系统包括中间节点和接收节点。

10. 发明申请

US20120063462A1 METHOD, APPARATUS AND SYSTEM FOR FORWARDING VIDEO DATA 审中-公开
标题翻译：用于转发视频数据的方法，装置和系统
公开(公告)号：US20120063462A1
公开(公告)日：2012-03-15
申请号：US13300214
申请日：2011-11-18
申请人： Yinliang Hu , Hewen Zheng , Xiaojun Yan , Wenxiao Yu
发明人： Yinliang Hu , Hewen Zheng , Xiaojun Yan , Wenxiao Yu
IPC分类号： H04L12/56
CPC分类号： H04N21/64784 , H04N21/23608 , H04N21/4384 , H04N21/6408 , H04N21/64753
摘要： The present disclosure relates to the field of video transmission, and discloses a method, an apparatus, and a system for forwarding video data. A network device receives and buffers a media stream, resolves the buffered media stream, obtains Transport Stream (TS) packets in the media stream, and evaluates and identifies a visual sensitivity priority of each TS packet; discards a TS packet of low visual sensitivity, and re-capsulates a TS packet of high visual sensitivity into a new media stream; and sends the re-encapsulated new media stream to a user equipment. The network device is enabled to discard the TS packet of low visual sensitivity in the media stream, which reduces duration of a fast channel change.
摘要翻译：本公开涉及视频传输领域，并且公开了一种用于转发视频数据的方法，装置和系统。网络设备接收和缓冲媒体流，解析缓冲的媒体流，获取媒体流中的传输流（TS）数据包，并评估和识别每个TS数据包的视觉灵敏度优先级; 丢弃具有低视觉灵敏度的TS包，并将高视觉灵敏度的TS包重新封装成新的媒体流; 并将重新封装的新媒体流发送到用户设备。网络设备能够丢弃媒体流中低视觉灵敏度的TS数据包，从而减少快速信道改变的持续时间。

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