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. 发明申请

US20090100188A1 METHOD AND SYSTEM FOR CLUSTER-WIDE PREDICTIVE AND SELECTIVE CACHING IN SCALABLE IPTV SYSTEMS 审中-公开
标题翻译：用于可扩展IPTV系统中的群集预测和选择性高速缓存的方法和系统
公开(公告)号：US20090100188A1
公开(公告)日：2009-04-16
申请号：US11870563
申请日：2007-10-11
申请人： Qiang Li , Naxin Wang , Li-Cheng Tai , Zhen Zeng
发明人： Qiang Li , Naxin Wang , Li-Cheng Tai , Zhen Zeng
IPC分类号： G06F15/16
CPC分类号： H04N21/6125 , H04L65/4076 , H04L67/2852 , H04N21/23106 , H04N21/2393 , H04N21/2405 , H04N21/26283 , H04N21/4331 , H04N21/47202 , H04N21/8456
摘要： A method for caching of stream data is accomplished by assigning for each video segment in the system a likelihood rating of future showing and then determining for each node that contains a copy of the segment a second likelihood value that reflecting a probability that the node will be used to serve streams for the segment. The future cost value of a segment copy is then predicted and preload orders are issued to nodes for segments with the per-copy likelihood above a predefined threshold.
摘要翻译：用于缓存流数据的方法是通过为系统中的每个视频段分配未来显示的可能性等级，然后为包含该段的副本的每个节点确定第二似然值来反映该节点将被用于为细分市场提供流。然后预测片段副本的未来成本值，并且将预加载顺序发布给每个副本可能性高于预定义阈值的段的节点。

2. 发明申请

US20070101012A1 METHOD AND APPARATUS FOR AUTOMATIC SWITCHING OF MULTICAST/UNICAST LIVE TV STREAMING IN A TV-OVER-IP ENVIRONMENT 失效
标题翻译：电视转播环境下多媒体/电视直播电视频道自动切换的方法与装置
公开(公告)号：US20070101012A1
公开(公告)日：2007-05-03
申请号：US11163790
申请日：2005-10-31
申请人： Qiang Li , Naxin Wang , Li-Cheng Tai
发明人： Qiang Li , Naxin Wang , Li-Cheng Tai
IPC分类号： G06F15/16
CPC分类号： H04L29/06027 , H04L65/4092 , H04L65/605 , H04L65/608
摘要： A system for live TV transmission over IP networks incorporates a content encoder receiving live TV broadcast and converting to RTP packets for multicast streaming. A streaming server receives the multicast RTP packets from the content encoder and converts the multicast stream to a unicast stream. The streaming server is also responsive to RTSP commands for trick mode operation. A settop box is connected through an IP network for receiving multicast RTP packets from the content encoder and generating RTSP commands for trick mode operation, the setup box issuing a leave multicast group signal upon issuing a trick mode command and receiving unicast transmission of RTP packets from the streaming server controllable by the trick mode commands.
摘要翻译：用于通过IP网络实时电视传输的系统包括内容编码器，其接收直播电视广播并转换为用于组播流的RTP分组。流服务器从内容编码器接收多播RTP分组，并将多播流转换为单播流。流服务器还响应于RTSP命令进行特技模式操作。机顶盒通过IP网络连接，用于从内容编码器接收多播RTP分组，并产生用于特技模式操作的RTSP命令，该设置框在发出特技模式命令时发出离开组播组信号，并接收来自流服务器可以通过特技模式命令控制。

3. 发明授权

US07472197B2 Method and apparatus for automatic switching of multicast/unicast live TV streaming in a TV-over-IP environment 失效
标题翻译：在IP over TV环境中自动切换多播/单播直播电视流的方法和装置
公开(公告)号：US07472197B2
公开(公告)日：2008-12-30
申请号：US11163790
申请日：2005-10-31
申请人： Qiang Li , Naxin Wang , Li-Cheng Tai
发明人： Qiang Li , Naxin Wang , Li-Cheng Tai
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177
CPC分类号： H04L29/06027 , H04L65/4092 , H04L65/605 , H04L65/608
摘要： A system for live TV transmission over IP networks incorporates a content encoder receiving live TV broadcast and converting to RTP packets for multicast streaming. A streaming server receives the multicast RTP packets from the content encoder and converts the multicast stream to a unicast stream. The streaming server is also responsive to RTSP commands for trick mode operation. A settop box is connected through an IP network for receiving multicast RTP packets from the content encoder and generating RTSP commands for trick mode operation, the setup box issuing a leave multicast group signal upon issuing a trick mode command and receiving unicast transmission of RTP packets from the streaming server controllable by the trick mode commands.
摘要翻译：用于通过IP网络实时电视传输的系统包括内容编码器，其接收直播电视广播并转换为用于组播流的RTP分组。流服务器从内容编码器接收多播RTP分组，并将多播流转换为单播流。流服务器还响应于RTSP命令进行特技模式操作。机顶盒通过IP网络连接，用于从内容编码器接收多播RTP分组，并产生用于特技模式操作的RTSP命令，该设置框在发出特技模式命令时发出离开组播组信号，并接收来自流服务器可以通过特技模式命令控制。

4. 发明申请

US20080005349A1 DISTRIBUTED MULTIMEDIA STREAMING SYSTEM 审中-公开
标题翻译：分布式多媒体流媒体系统
公开(公告)号：US20080005349A1
公开(公告)日：2008-01-03
申请号：US11744924
申请日：2007-05-07
申请人： Qiang Li , Jifei Song , Zhen Zeng , Naxin Wang
发明人： Qiang Li , Jifei Song , Zhen Zeng , Naxin Wang
IPC分类号： G06F15/16
CPC分类号： H04L65/4076 , H04L12/1859 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/1023
摘要： A media content distribution system for distributed multimedia streaming communicates over a network and incorporates multiple independent media stations, each having a media director for control and a number of media engines for storage, retrieval and streaming of media content. A content request from a media console connected to the network is redirected by the media director to a selected one of the media engines storing content corresponding to the request for streaming. Statistical indicators are defined for measuring effectiveness of the content distribution network. Push and pull indicators with additional differentiation for remote and local access to pulled content provide means for efficiency determination of data distribution and storage. A middleware Application Programming Interface (API) structure is provided for flexible interfacing between media consoles and content distribution system components.
摘要翻译：用于分布式多媒体流的媒体内容分发系统通过网络进行通信，并且包括多个独立媒体站，每个独立媒体站具有用于控制的媒体导向器和用于媒体内容的存储，检索和流媒体的多个媒体引擎。来自连接到网络的媒体控制台的内容请求被媒体主管重定向到存储与流请求请求相对应的内容的所选媒体引擎之一。统计指标用于衡量内容分发网络的有效性。推拉指标，具有远程和本地访问拉动内容的其他差异，为数据分配和存储的效率确定提供了手段。提供了中间件应用编程接口（API）结构，用于媒体控制台和内容分发系统组件之间的灵活接口。

5. 发明申请

US20090019493A1 CACHE AFFILIATION IN IPTV EPG SERVER CLUSTERING 审中-公开
标题翻译： IPTV EPG服务器群集中的高速缓存处理
公开(公告)号：US20090019493A1
公开(公告)日：2009-01-15
申请号：US11776947
申请日：2007-07-12
申请人： Qiang Li , Chen Ma , Huiyou Zhu , Naxin Wang
发明人： Qiang Li , Chen Ma , Huiyou Zhu , Naxin Wang
IPC分类号： H04N5/445
CPC分类号： H04N7/17336 , H04N21/23116 , H04N21/2393 , H04N21/84
摘要： An EPG service architecture incorporates multiple EPG servers connected in a cluster. An active dispatcher is associated with at least one EPG server and multiple standby dispatchers are associated with the cluster. A plurality of STBs interfaced with the EPG server cluster issue requests for EPG service for which the active dispatcher employs an affiliation table as a portion of the cache for redirecting each request to a specific one of the EPG servers affiliated with the STB issuing the request. The active dispatcher multicasts the affiliation table to the multiple standby dispatchers for synchronization.
摘要翻译： EPG服务架构集成了多个连接在集群中的EPG服务器。主动调度器与至少一个EPG服务器相关联，并且多个备用调度器与集群相关联。与EPG服务器集群接口的多个STB发出对EPG服务的请求，活动调度员使用附属表作为缓存的一部分，将每个请求重定向到与发出请求的STB相关联的EPG服务器的特定一个。活动分派器将附属表组播到多个备用分派器进行同步。

6. 发明申请

US20080319840A1 METHOD AND APPARATUS FOR REAL-TIME TV ADVERTISEMENT AUCTION IN A TV-OVER-IP ENVIRONMENT 审中-公开
标题翻译：电视机IP环境中实时电视广告拍卖的方法与设备
公开(公告)号：US20080319840A1
公开(公告)日：2008-12-25
申请号：US11765959
申请日：2007-06-20
申请人： Qiang Li , William X. Huang , Naxin Wang
发明人： Qiang Li , William X. Huang , Naxin Wang
IPC分类号： G06Q30/00 , G06Q40/00
CPC分类号： G06Q30/02 , G06Q30/0248 , G06Q30/0254 , G06Q30/0258 , G06Q30/0264 , G06Q30/0269 , G06Q30/0275 , G06Q40/04 , H04L65/605 , H04L67/306 , H04N21/2547 , H04N21/25883 , H04N21/26225 , H04N21/64322 , H04N21/812
摘要： A system for real time auctioning of advertising timeslots for live TV transmission over IP networks incorates settop boxes interconnected to a searver to provide real time viewing statistics to an advertising management system which also receives subscriber information from a subscriber management system which also management system determines demographics responsive to the subscriber information and viewing statistics and publishes advertising timeslot information and the determined demongraphics. A management terminal is employed for creating user accounts, providing access information to users, inspecting and approving advertisements responsive to input the advertisements from the users. Bid parameters are defined using the management terminal and the publication by the system to the users is responsive to the bid parameters. User terminals are provided for uploading advertisements to the advertising management system and the advertising management system further assigns unique identification to the uploaded advertisements. The user terminals upload advertising parameters, receive the published time slots and demographics and submit bids to the advertising management system. The advertising management system receives the bids and inserts predefined advertisements responsive to a winning bid.
摘要翻译：用于通过IP网络实时电视传输的广告时隙的实时拍卖系统包括与搜索者互连的机顶盒，以向广告管理系统提供实时观看统计信息，广告管理系统还从订户管理系统接收订户信息，管理系统还管理系统确定人口统计响应于用户信息和查看统计信息，并发布广告时隙信息和确定的人口统计。管理终端用于创建用户帐户，向用户提供访问信息，响应于输入来自用户的广告来检查和批准广告。出价参数是使用管理终端定义的，系统对用户的出版是对出价参数的反应。用户终端被提供用于将广告上传到广告管理系统，并且广告管理系统进一步向上传的广告分配唯一标识。用户终端上传广告参数，接收发布的时段和人口统计，并向广告管理系统提交投标。广告管理系统接收出价，并根据中标进行插入预定义的广告。

7. 发明申请

US20090019161A1 HYBRID EPG SERVER WITH SERVICE DISPATCHER TO BUILD A DISPATCHER REDUNDANCY CHAIN IN CLUSTERED IPTV EPG SERVICE 审中-公开
标题翻译：混合EPG服务器与服务分配器构建集中式IPTV EPG服务中的分配器冗余链
公开(公告)号：US20090019161A1
公开(公告)日：2009-01-15
申请号：US11776766
申请日：2007-07-12
申请人： Qiang Li , Huiyou Zhu , Chen Ma , Naxin Wang
发明人： Qiang Li , Huiyou Zhu , Chen Ma , Naxin Wang
IPC分类号： G06F15/173
CPC分类号： H04N7/17318 , H04N21/26283 , H04N21/2665 , H04N21/64322 , H04N21/6581
摘要： An EPG service architecture incorporates multiple EPG servers connected in a cluster with each EPG server having an EPG service module and a dispatcher. Each dispatcher has the capability for state determination as an active or standby dispatcher. A plurality of STBs interface with the EPG server cluster and issue requests for EPG service which are routed by the active dispatcher. The routing is accomplished by redirection of the request to an EPG service module selected from the multiple EPG servers in the cluster. Each EPG service module includes the capability for service connection to the STB upon receiving the redirection from the active dispatcher. Upon a determination that the current active dispatcher is not operating, the standby dispatchers vote for a replacement which then assumes the active dispatcher role.
摘要翻译： EPG服务架构包含多个连接在集群中的EPG服务器，每个EPG服务器具有EPG服务模块和调度程序。每个调度员具有状态确定的能力作为主动或备用分派器。多个STB与EPG服务器集群接口，并发出由主动分派器路由的EPG业务请求。路由是通过将请求重定向到从群集中的多个EPG服务器中选择的EPG服务模块来实现的。每个EPG服务模块包括在从主动调度器接收到重定向时与STB的业务连接的能力。在确定当前活动分派器未运行时，备用分配器投票替换，然后替换该替换，该计算机将采用主动分派器角色。

8. 发明申请

US20070097955A1 METHOD AND APPARATUS FOR IP MULTICAST RELAY OF LIVE TV STREAMING TRAFFIC IN A TV-OVER-IP ENVIRONMENT 审中-公开
标题翻译：电视机IP环境下实时电视流媒体IP多媒体中继方法与装置
公开(公告)号：US20070097955A1
公开(公告)日：2007-05-03
申请号：US11163764
申请日：2005-10-28
申请人： Qiang Li , Naxin Wang , Jiffei Song
发明人： Qiang Li , Naxin Wang , Jiffei Song
IPC分类号： H04L12/66
CPC分类号： H04L29/06027 , H04L12/4633 , H04L65/4076
摘要： A system for live TV transmission over IP networks incorporates a head end real-time encoding/transcoding server for converting live TV encoded data streams with root multicast relay servers receiving multicast data streams from the encoding/transcoding server. The multicast stream output is provided to a first set of relay servers through multicast capable routers and the root multicast servers provide unicast stream output to a second set of relay servers through unicast limited routers. The first and second sets of relay servers provide unicast and multicast stream output for child servers or local access networks.
摘要翻译：用于通过IP网络实时电视传输的系统包括用于从编码/代码转换服务器接收组播数据流的根多播中继服务器转换直播TV编码数据流的头端实时编码/转码服务器。组播流输出通过支持多播的路由器提供给第一组中继服务器，根组播服务器通过单播有限路由器向第二组中继服务器提供单播流输出。第一组和第二组中继服务器为子服务器或本地接入网提供单播和组播流输出。

9. 发明申请

US20070180136A1 DISTRIBUTED MULTIMEDIA STREAMING SYSTEM 审中-公开
标题翻译：分布式多媒体流媒体系统
公开(公告)号：US20070180136A1
公开(公告)日：2007-08-02
申请号：US11626430
申请日：2007-01-24
申请人： Qiang Li , Zhen Zeng , Jifei Song
发明人： Qiang Li , Zhen Zeng , Jifei Song
IPC分类号： G06F15/16
CPC分类号： H04L29/06027 , H04L65/4084 , H04L65/605 , H04L67/1095
摘要： A media content distribution system for distributed multimedia streaming communicates over a network and incorporates multiple independent media stations, each having a media director for control and a number of media engines for storage, retrieval and streaming of media content. A content request from a media console connected to the network is redirected by the media director to a selected one of the media engines storing content corresponding to the request for streaming. Statistical indicators are defined for measuring effectiveness of the content distribution network. Push and pull indicators with additional differentiation for remote and local access to pulled content provide means for efficiency determination of data distribution and storage. A middleware Application Programming Interface (API) structure is provided for flexible interfacing between media consoles and content distribution system components.
摘要翻译：用于分布式多媒体流的媒体内容分发系统通过网络进行通信，并且包括多个独立媒体站，每个独立媒体站具有用于控制的媒体导向器和用于媒体内容的存储，检索和流媒体的多个媒体引擎。来自连接到网络的媒体控制台的内容请求被媒体主管重定向到存储与流请求请求相对应的内容的所选媒体引擎之一。统计指标用于衡量内容分发网络的有效性。推拉指标，具有远程和本地访问拉动内容的其他差异，为数据分配和存储的效率确定提供了手段。提供了中间件应用编程接口（API）结构，用于媒体控制台和内容分发系统组件之间的灵活接口。

10. 发明授权

US10075083B2 Multi-step simplified optimal trajectory control (SOTC) based on only Vo and I load 有权
公开(公告)号：US10075083B2
公开(公告)日：2018-09-11
申请号：US15089109
申请日：2016-04-01
申请人： Chao Fei , Fred C. Lee , Weiyi Feng , Qiang Li
发明人： Chao Fei , Fred C. Lee , Weiyi Feng , Qiang Li
IPC分类号： H02M3/335 , H02M1/36 , H02M3/337 , H02M1/00
CPC分类号： H02M3/33546 , H02M1/36 , H02M3/33515 , H02M3/33592 , H02M3/3376 , H02M2001/0035 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491 , Y02B70/16
摘要： A resonant power converter is disclosed with a driving circuit generating a switching signal connecting power to a resonant tank circuit, with a voltage monitoring circuit measuring a voltage output and a load current. A micro-controller is operable with a control circuit for multiple step sampling with the switching signal at a switching frequency to settle the resonant circuit determined from the voltage output and load current. A fast load transient response at a high frequency with the resonant circuit provides the multiple step sampling to ensure enough time for micro-controller to calculate. Optimal trajectory control facilitates a burst mode of high frequency with the resonant circuit using adaptive multiple step sampling for an on-time to extend the burst operation range. A soft start-up process uses the micro-controller processing in multiple stages.

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