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1. 发明申请

US20160156950A1 SYNCHRONIZED DATA PROCESSING BETWEEN RECEIVERS 有权
标题翻译：接收者之间的同步数据处理
公开(公告)号：US20160156950A1
公开(公告)日：2016-06-02
申请号：US14903208
申请日：2014-07-08
申请人： KONINKLIJKE KPN N.V. , NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETENSCHAPPELIJK ONDERZOEK TNO
发明人： Menno Bangma , Ray Van Brandenburg
IPC分类号： H04N21/242 , H04N21/43 , H04N21/426
CPC分类号： H04N21/242 , H04N21/4263 , H04N21/43 , H04N21/4302
摘要： A method, a client device and a synchronization server are described for enabling synchronization of data processing by a first and second receiver wherein the method may comprise: said first receiver processing data units of a first broadcast stream, a play-out delay Δtp defining a time interval between transmission of a data unit to said first receiver and the processing of said data unit by said first receiver; initiating transmission of data units of a second broadcast stream to said second receiver, a common timeline correlating one or more data unit in said first stream with one or more corresponding data unit in said second stream; and, selecting one or more data units from a plurality of stored data units corresponding to said second stream, wherein at least part of said selected data units have corresponding data units of said first stream that have been transmitted to said first receiver but that have not been processed by said first receiver due to said play-out delay.
摘要翻译：描述了一种方法，客户端设备和同步服务器，用于使得能够由第一和第二接收机进行数据处理的同步，其中该方法可以包括：所述第一接收机处理第一广播流的数据单元，播出延迟＆Dgr; tp 定义数据单元与所述第一接收机的传输和所述第一接收机对所述数据单元的处理之间的时间间隔; 启动第二广播流的数据单元向所述第二接收器的传输;将所述第一流中的一个或多个数据单元与所述第二流中的一个或多个相应数据单元相关联的公共时间线; 以及从对应于所述第二流的多个存储的数据单元中选择一个或多个数据单元，其中所述所选择的数据单元的至少一部分具有已被发送到所述第一接收器但是没有的所述第一流的对应数据单元由于所述播放延迟，由所述第一接收机处理。

2. 发明申请

US20160198202A1 Digital Rights Management for Segmented Content 审中-公开
标题翻译：分段内容的数字版权管理
公开(公告)号：US20160198202A1
公开(公告)日：2016-07-07
申请号：US14650841
申请日：2013-12-10
申请人： KONINKLIJKE KPN N.V. , NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETENSCHAPPELIJK ONDERZOEK TNO
发明人： Ray Van Brandenburg , Menno Bangma , Hendrik Van De Vlag
IPC分类号： H04N21/254 , G11B27/10 , H04N21/845 , H04N21/241 , H04N21/6334 , H04N21/2347 , H04N21/854 , H04N21/4627 , H04N21/426
CPC分类号： H04N21/2541 , G11B27/10 , H04N21/2347 , H04N21/241 , H04N21/26258 , H04N21/26613 , H04N21/42623 , H04N21/4405 , H04N21/458 , H04N21/4622 , H04N21/4627 , H04N21/4825 , H04N21/63345 , H04N21/64322 , H04N21/8352 , H04N21/8456 , H04N21/85406
摘要： A method and a system for enabling delivery of at least part of a digital rights management (DRM) protected segmented content item to a content processing device is described wherein segmented content item is associated with a manifest file, comprising at least a first segment identifier associated with a first segment being encrypted on the basis a first key; and, a second segment identifier associated with a different, second, segment being encrypted on the basis of a second key; said manifest file further comprising key information for enabling decryption of at least one of said first and second encrypted segments. Said method may comprise: a secure module, preferably a DRM module, in said content processing device requesting a DRM server access to at least part of said segmented content item; and, providing said secure module access to at least part of said key information, if said content access request is granted by said DRM server.
摘要翻译：描述了一种用于使能够将数字版权管理（DRM）保护的分段内容项目的至少一部分传送到内容处理设备的方法和系统，其中分割的内容项目与清单文件相关联，包括至少第一段标识符相关联其中基于第一密钥对第一段进行加密; 以及与基于第二密钥加密的不同的第二段相关联的第二段标识符; 所述清单文件还包括用于启用所述第一和第二加密段中的至少一个的解密的密钥信息。所述方法可以包括：所述内容处理设备中的安全模块，优选DRM模块，请求DRM服务器访问所述分段内容项目的至少一部分; 以及如果所述内容访问请求被所述DRM服务器授予，则提供所述安全模块访问所述密钥信息的至少一部分。

3. 发明授权

US09832518B2 Synchronization of processing media streams by one or more media processing devices 有权
公开(公告)号：US09832518B2
公开(公告)日：2017-11-28
申请号：US15035943
申请日：2014-11-17
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
发明人： Menno Bangma , Ray Van Brandenburg
IPC分类号： H04N21/43 , H04N21/242 , H04N21/231 , H04N21/41
CPC分类号： H04N21/4307 , H04N21/23106 , H04N21/242 , H04N21/4126
摘要： Methods, media processing devices and cache nodes for enabling instant synchronization of processing of data units of a primary media stream and of one or more secondary streams by at least one media processing device are described. The method may comprise the steps of: selecting a primary media stream that is broadcasted by a broadcast source, said primary media stream being associated with at least one secondary stream; receiving data units of said primary media stream and data units of said at least one secondary media streams; providing cache timing information associated with a time delay between the availability by said at least one media processing device to data units of said primary stream and to corresponding data units of said secondary stream; and, requesting one or more cache data units from at least one cache server on the basis of said cache timing information, wherein at least part of said cache data units correspond to data units of said primary media stream that, at the time the primary media stream was selected by said media processing device, were already broadcasted by said broadcast source.

4. 发明授权

US11290423B2 QOS in data stream delivery 有权
公开(公告)号：US11290423B2
公开(公告)日：2022-03-29
申请号：US15329146
申请日：2015-07-28
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
发明人： Menno Bangma , Hans Maarten Stokking , Frank Den Hartog
IPC分类号： H04L29/12 , H04L61/2567 , H04L47/10 , H04L12/66 , H04L47/24 , H04L67/55
摘要： A system for managing a data stream between first and second networks is described in which a node entity transmits a data stream addressed to a destination device in the second network and a gateway entity receives the data stream from the first network. The gateway entity identifies at least one characteristic of the destination device and transmits it to the node entity in the first network in such a way that the characteristic is relatable to the data stream. The node entity receives the characteristic of the destination device from the gateway entity and relates it to the data stream and performs Quality of Service management on the data stream based on the at least one characteristic. A gateway device and a method of managing a data stream are also described. The system, gateway, node and method extend the application of QoS performance and management.

5. 发明授权

US09800908B2 Synchronized data processing of broadcast streams between receivers, including synchronized data processing between a receiver that is in the process of processing a stream and a receiver that wants to join the stream 有权
公开(公告)号：US09800908B2
公开(公告)日：2017-10-24
申请号：US14903208
申请日：2014-07-08
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
发明人： Menno Bangma , Ray Van Brandenburg
IPC分类号： H04N21/242 , H04N21/426 , H04N21/43
CPC分类号： H04N21/242 , H04N21/4263 , H04N21/43 , H04N21/4302
摘要： In an embodiment, synchronization of data processing by a first and second receiver is enabled by the first receiver processing data units of a first broadcast stream, with a play-out delay Δtp defining a time interval between transmission of a data unit to the first receiver and the processing of the data unit by the first receiver. Transmission of data units of a second broadcast stream is initiated to the second receiver, a common timeline correlating one or more data unit in the first stream with one or more corresponding data unit in the second stream. One or more data units is selected from stored data units corresponding to the second stream. At least part of the selected data units have corresponding data units of the first stream that have been transmitted to the first receiver but that have not been processed by the first receiver due to the play-out delay.

6. 发明授权

US10171528B2 Streaming of segmented content 有权
公开(公告)号：US10171528B2
公开(公告)日：2019-01-01
申请号：US14899534
申请日：2014-07-02
申请人： KONINKLIJKE KPN N.V.
发明人： Bastiaan Wissingh , Menno Bangma , Ray Van Brandenburg , Mattijs Oskar Van Deventer
IPC分类号： H04L29/06 , H04N21/262 , H04N21/442 , H04N21/458 , H04N21/466 , H04N21/845
摘要： Methods and systems for enabling streaming of segmented content from a content delivery network to an adaptive streaming client on the basis of a manifest file are described wherein the said manifest file may comprise one or more segment identifiers. The method may comprise: selecting at least one segment identifier from said manifest file, said identifier identifying a segment that has not been requested by said client; and, sending pre-announce information to said content delivery network for announcing in advance that said segment may be requested by said client, said pre-announce information comprising said at least one segment identifier, said pre-announce information being further arranged for triggering said content delivery network to ensure availability of said segment upon receiving said request.

7. 发明申请

US20170222973A1 Improved QOS in Data Stream Delivery 审中-公开
公开(公告)号：US20170222973A1
公开(公告)日：2017-08-03
申请号：US15329146
申请日：2015-07-28
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie voor Toegepast-Natuutwetenschappelijk Onderzoek TNO
发明人： Menno Bangma , Hans Maarten Stokking , Frank Den Hartog
IPC分类号： H04L29/12 , H04L29/08 , H04L12/851 , H04L12/66
CPC分类号： H04L61/2567 , H04L12/66 , H04L47/10 , H04L47/24 , H04L67/26
摘要： A system for managing a data stream between first and second networks is described in which a node entity transmits a data stream addressed to a destination device in the second network and a gateway entity receives the data stream from the first network. The gateway entity identifies at least one characteristic of the destination device and transmits it to the node entity in the first network in such a way that the characteristic is relatable to the data stream. The node entity receives the characteristic of the destination device from the gateway entity and relates it to the data stream and performs Quality of Service management on the data stream based on the at least one characteristic. A gateway device and a method of managing a data stream are also described. The system, gateway, node and method extend the application of QoS performance and management.

8. 发明授权

US11153580B2 Partial video decoding method, device and system 有权
公开(公告)号：US11153580B2
公开(公告)日：2021-10-19
申请号：US16329604
申请日：2017-09-08
申请人： Koninklijke KPN N.V.
发明人： Menno Bangma , Ray Van Brandenburg , Arjen Veenhuizen
IPC分类号： H04N19/169 , H04N19/174 , H04N19/88 , H04N19/167 , H04N21/2343 , H04N21/4728 , H04N19/40 , H04N19/119 , H04N19/46
摘要： Encoded video data representing partial video images is decoded from a first video stream such as a HEVC bitstream. The first video stream comprises video images divided into a spatial array of independently decodable slices. The first video stream comprises network abstraction layer units that each contain video content data for a respective one of the slices preceded by a header that comprises parameters relating to the respective one of the slices in relation to the first video stream. Previously prepared information such as meta data about positions of parameters in the network abstraction layer units or a plurality of different versions of the network abstraction layer units for different partial image sizes (different picture sizes) is used. The meta data may be used for partially rewriting the network abstraction layer units for a subarray of slices, the network abstraction layer units being rewritten at a location selected on the basis of meta data, to make the network abstraction layer units consistent with a second video stream of encoded video data only for the sub-array of slices. Versions of the network abstraction layer units may be selected for the sub-array of slices, from the plurality of different versions. Subsequently, the partial video images are generated by decoding the encoded video data from the rewritten network abstraction layer units.

9. 发明申请

US20220007036A1 Partial Video Decoding Method, Device and System 有权
公开(公告)号：US20220007036A1
公开(公告)日：2022-01-06
申请号：US17477337
申请日：2021-09-16
申请人： Koninklijke KPN N.V.
发明人： Menno Bangma , Ray Van Brandenburg , Arjen Veenhuizen
IPC分类号： H04N19/169 , H04N19/174 , H04N19/88 , H04N19/167 , H04N21/2343 , H04N21/4728 , H04N19/40 , H04N19/119 , H04N19/46
摘要： Encoded video data representing partial video images is decoded from a first video stream such as a HEVC bitstream. The first video stream comprises video images divided into a spatial array of independently decodable slices. The first video stream comprises network abstraction layer units that each contain video content data for a respective one of the slices preceded by a header that comprises parameters relating to the respective one of the slices in relation to the first video stream. Previously prepared information such as meta data about positions of parameters in the network abstraction layer units or a plurality of different versions of the network abstraction layer units for different partial image sizes (different picture sizes) is used. The meta data may be used for partially rewriting the network abstraction layer units for a sub-array of slices, the network abstraction layer units being rewritten at a location selected on the basis of meta data, to make the network abstraction layer units consistent with a second video stream of encoded video data only for the sub-array of slices. Versions of the network abstraction layer units may be selected for the sub-array of slices, from the plurality of different versions. Subsequently, the partial video images are generated by decoding the encoded video data from the rewritten network abstraction layer units.

10. 发明申请

US20190200029A1 Partial Video Decoding Method, Device and System 审中-公开
公开(公告)号：US20190200029A1
公开(公告)日：2019-06-27
申请号：US16329604
申请日：2017-09-08
申请人： Koninklijke KPN N.V.
发明人： Menno Bangma , Ray Van Brandenburg , Arjen Veenhuizen
IPC分类号： H04N19/40 , H04N19/46 , H04N19/119 , H04N19/174 , H04N19/169
CPC分类号： H04N19/40 , H04N19/119 , H04N19/167 , H04N19/174 , H04N19/188 , H04N19/46 , H04N19/88 , H04N21/2343 , H04N21/4728
摘要： Encoded video data representing partial video images is decoded from a first video stream such as a HEVC bitstream. The first video stream comprises video images divided into a spatial array of independently decodable slices. The first video stream comprises network abstraction layer units that each contain video content data for a respective one of the slices preceded by a header that comprises parameters relating to the respective one of the slices in relation to the first video stream. Previously prepared information such as meta data about positions of parameters in the network abstraction layer units or a plurality of different versions of the network abstraction layer units for different partial image sizes (different picture sizes) is used. The meta data may be used for partially rewriting the network abstraction layer units for a subarray of slices, the network abstraction layer units being rewritten at a location selected on the basis of meta data, to make the network abstraction layer units consistent with a second video stream of encoded video data only for the sub-array of slices. Versions of the network abstraction layer units may be selected for the sub-array of slices, from the plurality of different versions. Subsequently, the partial video images are generated by decoding the encoded video data from the rewritten network abstraction layer units.

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