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公开(公告)号：WO2010028591A1
公开(公告)日：2010-03-18
申请号：PCT/CN2009/073821
申请日：2009-09-09
IPC: H04N5/76
CPC classification number: H04N5/782 , H04N21/4334 , H04N21/43615 , H04N21/47214
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公开(公告)号：WO2008037215A1
公开(公告)日：2008-04-03
申请号：PCT/CN2007/070768
申请日：2007-09-25
CPC classification number: H04N7/17318 , H04L65/1016 , H04L65/4076 , H04L69/08 , H04N21/4334 , H04N21/472 , H04N21/47202 , H04N21/6405 , H04N21/64322
Abstract: A system and method of supporting IMS terminals to share IPTV service, also to share VoD and LTV of the IPTV service. The system adds a service gateway which is used between the IMS network and IPTV. The gateway includes the function of controlling and load-carrying surface.
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公开(公告)号：WO2009065339A1
公开(公告)日：2009-05-28
申请号：PCT/CN2008/072922
申请日：2008-11-04
IPC: H04L29/06
CPC classification number: H04L65/1006 , H04L63/10 , H04L63/168
Abstract: A method and device for identifying and obtaining the authority information in the SDP protocol are provided. The method for identifying the authority information includes: identifying the authority attribute of the multicast service in the attribute portion of the attribute row, and identifying the authority information of the multicast service corresponding to the authority attribute in the attribute value portion of the attribute row. The method for obtaining the authority information includes: analyzing the session description protocol SDP message to obtain an attribute row or a group of attribute rows in the SDP message; and obtaining the authority information from the attribute row or the group of attribute rows.
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公开(公告)号：WO2009152706A1
公开(公告)日：2009-12-23
申请号：PCT/CN2009/071336
申请日：2009-04-17
IPC: H04L29/06
CPC classification number: H04L65/4076 , H04L67/306 , H04N21/25891 , H04N21/2668 , H04N21/812 , H04N21/84
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Patent Agency Ranking
公开(公告)号：WO2008110094A1
公开(公告)日：2008-09-18
申请号：PCT/CN2008/070422
申请日：2008-03-06
CPC classification number: H04N7/17318 , H04L65/4084 , H04L65/4092 , H04N21/4384 , H04N21/6125 , H04N21/6175
Abstract: A method and system for switching IPTV service are provided. By introducing switch controlling function entity and/or media anchoring function entity into IPTV system, and by building the media connection of switch receiving entity at first, and then cutting off the media connection of switch initiating entity, it is realized that the switch of IPTV service from switch initiating entity to switch receiving entity, and the continuity of IPTV service during switching is ensured,.
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公开(公告)号：WO2009074056A1
公开(公告)日：2009-06-18
申请号：PCT/CN2008/073170
申请日：2008-11-24
IPC: H04L29/06
CPC classification number: H04L65/1006 , H04L47/10
Abstract: A medium resource reservation method, and a service package information obtaining method and apparatus are provided, which are used to decrease resource waste of resource reservation. The resource reservation method includes the following steps: a service message which includes session description protocol SDP information is received, the SDP information includes a service package information; the service package information is parsed from the SDP information; the service package information is used to reserve resource. The method can identify the service package, so the service package processing efficiency can be improved, the resource waste of resource reservation can be decreased effectively.
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公开(公告)号：WO2008134955A1
公开(公告)日：2008-11-13
申请号：PCT/CN2008/070764
申请日：2008-04-22
IPC: H04L12/66
CPC classification number: H04L65/4076 , H04L65/1016 , H04N21/25825 , H04N21/25833 , H04N21/25858 , H04N21/2662 , H04N21/4436 , H04N21/6377 , H04N21/64322 , H04N21/658 , H04N21/6582
Abstract: A system, apparatus and method for applying terminal capability information in IPTV service. The system includes user devices, a Core IP Multimedia Subsystem Core IMS, a Device Profile Function DPF and an application server, wherein, the user devices are used to transmit terminal capability information and receive IPTV services; the Core IMS is used to transit the terminal capability information received from the user devices to DPF; DPF is used to transmit the terminal capability information to the application server; the application server is used to provide IPTV to the user devices according to the terminal capability information. The method includes that the terminal capability information is received from the user devices via the Core IMS; IPTV is provided to the user devices according to the acquired terminal capability information.
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公开(公告)号：WO2009056036A1
公开(公告)日：2009-05-07
申请号：PCT/CN2008/072775
申请日：2008-10-21
IPC: H04L29/06
CPC classification number: H04L69/24 , H04L65/1016 , H04L65/1069
Abstract: A method, system and equipment for implementing media control are provided. The method includes the steps of: obtaining the relation information of the media control channel and the media delivery channel; performing media control according to the relation information and the media description information. By describing the relation information of the media control channel and the media delivery channel in SDP and combining with the media description information, the invention implements media control.
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公开(公告)号：WO2008128475A1
公开(公告)日：2008-10-30
申请号：PCT/CN2008/070754
申请日：2008-04-18
IPC: H04N7/173
CPC classification number: H04N7/1675 , H04N21/835
Abstract: A content protect serving function entity, an IMS based IPTV system including the content protect serving function entity and a method for distributing keys or copyright objects in the IMS based IPTV system are disclosed. The content protect serving function entity includes a keys managing function unit for sending the keys to a media function entity or user equipment in the IPTV system. The content protect serving function entity may further include a copyright object distributing function unit and a content protect function unit. With the invention, it is possible to realize the management and control of the keys or the copyright objects in the IMS based IPTV system such that the safety of the media content access could be ensured.
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