公开(公告)号：US09607132B2

公开(公告)日：2017-03-28

申请号：US14056127

申请日：2013-10-17

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Ray van Brandenburg ,  Mattijs Oskar van Deventer ,  Martin Prins

IPC分类号： G06F21/10 ,  H04L29/06 ,  H04L29/08

CPC分类号： G06F21/10 ,  H04L63/0807 ,  H04L63/0846 ,  H04L65/4084 ,  H04L67/02

摘要： A token-based validation method for delivery of at least part of a segmented content item and a content delivery system configured for executing such method are described. Said segmented content item may be associated with at least one manifest file comprising one or more segment identifiers. The method may comprises the steps of: a content processing device sending a first segment request message comprising a first segment identifier associated with a first segment to said at least one delivery node; generating first validation information for use with a further second segment request message, said first validation information comprising at least a first token and associated first timing information; and, sending a first response message and said first validation information to said content processing device, said first response message comprising at least part of said segment or location information associated with at least one delivery node for delivering said segment.

公开(公告)号：US11461942B2

公开(公告)日：2022-10-04

申请号：US16712736

申请日：2019-12-12

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Hans Maarten Stokking ,  Hendrikus Nathaniël Hindriks ,  Mattijs Oskar van Deventer ,  Johannes Marinus Maria de Nijs ,  Karim Mohammed el Assal

IPC分类号： G06T11/60 ,  G06T7/70 ,  G06T13/80

摘要： Processor systems and computer-implemented methods are provided for rendering a multiuser virtual environment in which different panoramic images are provided as image-based backdrop for different viewing positions in the virtual environment. When a user switches from a first viewing position for which a first panoramic image is rendered to a second viewing position for which a second panoramic image is rendered, a transition may be rendered for the user, for example as a mathematical transformation of the panoramic images. To avoid other users perceiving the representation of the user in the virtual environment from abruptly switching to the second viewing position, transition data may be provided which enables another processor system to render a representation of the transition in the virtual environment, e.g., by moving an avatar of the user along a movement trajectory.

公开(公告)号：US20140310527A1

公开(公告)日：2014-10-16

申请号：US14351678

申请日：2012-10-24

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Peter Joannes Mathias Veugen ,  Mattijs Oskar van Deventer

IPC分类号： H04L9/08

CPC分类号： H04L9/085 ,  H04L9/065 ,  H04L9/0825 ,  H04L9/3013 ,  H04L9/302 ,  H04L2209/603

摘要： Methods and systems are described for enabling secure delivery of a content item from a content source to a content receiving device associated with a decryption module configured for use with a split-key cryptosystem comprising encryption and decryption algorithms E and D, a cipher algorithm for generating encryption and decryption keys e,d on the basis of secret information S and a split-key algorithm for splitting e and/or d into i different split-encryption keys e1, e2, . . . , ei and/or k different split-decryption keys d1, d2, . . . , dk respectively, such that Ddk(Ddk-1( . . . (Dd2(Dd1(Eei(Eei-1( . . . (Ee2(Ee1(X)) . . . ))=Ddk(Ddk-1( . . . (Dd2(Dd1(Xe1, e2, . . . , ei))=X wherein i,k≧1 and i+k>2, wherein the method comprises: provisioning said decryption module with first split-key information comprising at least a first split-key; generating second split-key information comprising at least a second split-key on the basis of said first split-key information, said decryption key d and, optionally, said secret information S; and, provisioning said decryption module with said at least second split-key 1 information for decrypting an encrypted content item Xe on the basis of said first and second split-key information and decryption algorithm D in said decryption module.

摘要翻译： 描述了用于使内容项从内容源安全传递到与被配置为与包括加密和解密算法E和D的分裂密钥加密系统一起使用的解密模块相关联的内容接收设备的方法和系统，用于生成 基于秘密信息S的加密和解密密钥e，d和用于将e和/或d分割成i个不同分裂加密密钥e1，e2的分裂密钥算法。 。 。 ，ei和/或k个不同的解密密钥d1，d2。 。 。 ，dk分别使得Ddk（Ddk-1（...）（Dd2（Dd1（Eei（Eei-1（...（Ee2（Ee1（X））...）= Ddk（Ddk-1 （Dd2（Dd1（Xe1，e2，...，ei））= X其中i，k≥1和i + k> 2，其中所述方法包括：为第一分组密钥信息提供所述解密模块， 至少一个第一分组密钥;基于所述第一分组密钥信息，所述解密密钥d和可选地生成所述秘密信息S，产生包括至少第二分裂密钥的第二分组密钥信息;以及提供所述解密 模块，其具有用于在所述解密模块中基于所述第一和第二分组密钥信息和解密算法D解密加密内容项目Xe的所述至少第二分组密钥1信息。

公开(公告)号：US20170099515A1

公开(公告)日：2017-04-06

申请号：US15379397

申请日：2016-12-14

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Hans Maarten Stokking ,  Ray van Brandenburg ,  Mattijs Oskar van Deventer

IPC分类号： H04N21/43 ,  H04N21/44 ,  H04N21/6437 ,  H04N21/439

CPC分类号： H04N21/4307 ,  H04L29/06517 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/6437

摘要： Methods and systems for inter-destination synchronization in first and second receivers for content parts associated with a play-out timeline are disclosed. First timing information comprising first content part identifiers and associated first clock times may be determined, where the first receiver may receive a first content part identifier comprising first fingerprints for identifying a first content part in a first media stream. Second timing information comprising second content part identifiers and associated second clock times may be determined, where the second receiver may receive a second content part identifier identifying a second content part in a second media stream based on the first and second timing information. A timing difference in processing a content part in the first and second media streams may be calculated. Based on the timing difference, synchronization information for inter destination synchronization between said first and second streams may be generated.

公开(公告)号：US20170063684A1

公开(公告)日：2017-03-02

申请号：US15245980

申请日：2016-08-24

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO

发明人： Hans Maarten Stokking ,  Adrianus Cornelis Gerardus Holtzer ,  Mattijs Oskar van Deventer

IPC分类号： H04L12/741 ,  H04L5/00 ,  H04L29/06

CPC分类号： H04L45/74 ,  H04L5/0055 ,  H04L65/4076 ,  H04L65/605 ,  H04L65/80 ,  H04L67/02 ,  H04L69/16

摘要： A system and method are provided for transmitting data via a network. Upon receiving a request for unicast transmission of the data, the system and method respond to the request by i) formatting the data in accordance with a transport protocol to obtain formatted data and ii) providing the formatted data to the network, the formatted data comprising a destination address field. The network is a programmable network comprising one or more forwarding nodes that are remotely controllable. In order to effect a multicasting of the formatted data, the one or more forwarding nodes are controlled to i) replicating the formatted data to obtain replicated formatted data, and ii) setting the destination address field of the replicated formatted data to an address originating from a further request for the unicast transmission of the data. An advantage of the system and method is that multicasting may be provided for ‘off-the-shelf’ unicast receivers.

摘要翻译： 提供了一种用于经由网络发送数据的系统和方法。 在接收到数据的单播传输的请求之后，系统和方法通过i）根据传输协议来格式化数据来响应该请求，以获得格式化的数据，以及ii）将格式化的数据提供给网络，格式化的数据包括 目的地址字段。 网络是包括可远程控制的一个或多个转发节点的可编程网络。 为了实现格式化数据的多播，控制一个或多个转发节点以i）复制格式化数据以获得复制的格式化数据，以及ii）将复制的格式化数据的目的地地址字段设置为源自 进一步请求数据的单播传输。 该系统和方法的优点是可以为“现成”单播接收机提供多播。

公开(公告)号：US09553756B2

公开(公告)日：2017-01-24

申请号：US13905133

申请日：2013-05-30

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Hans Maarten Stokking ,  Ray van Brandenburg ,  Mattijs Oskar van Deventer

IPC分类号： H04L29/06 ,  H04N21/43 ,  H04N21/439 ,  H04N21/44 ,  H04N21/6437

CPC分类号： H04N21/4307 ,  H04L29/06517 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/6437

摘要： Methods and systems for inter-destination synchronization in first and second receivers for content parts associated with a play-out timeline are disclosed. First timing information comprising first content part identifiers and associated first clock times may be determined, where the first receiver may receive a first content part identifier comprising first fingerprints for identifying a first content part in a first media stream. Second timing information comprising second content part identifiers and associated second clock times may be determined, where the second receiver may receive a second content part identifier identifying a second content part in a second media stream based on the first and second timing information. A timing difference in processing a content part in the first and second media streams may be calculated. Based on the timing difference, synchronization information for inter destination synchronization between said first and second streams may be generated.

摘要翻译： 公开了用于与播出时间线相关联的内容部分的用于第一和第二接收器中的目的地间同步的方法和系统。 可以确定包括第一内容部分标识符和相关联的第一时钟时间的第一定时信息，其中第一接收机可以接收包括用于识别第一媒体流中的第一内容部分的第一指纹的第一内容部分标识符。 可以确定包括第二内容部分标识符和相关联的第二时钟时间的第二定时信息，其中第二接收机可以基于第一和第二定时信息接收识别第二媒体流中的第二内容部分的第二内容部分标识符。 可以计算处理第一和第二媒体流中的内容部分的定时差。 基于定时差，可以产生用于所述第一和第二流之间的目的地间同步的同步信息。

公开(公告)号：US20160365973A1

公开(公告)日：2016-12-15

申请号：US14060867

申请日：2013-10-23

申请人： Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO ,  Koninklijke KPN N.V.

发明人： Mattijs Oskar van Deventer ,  Peter Joannes Mathias Veugen

IPC分类号： H04L9/06 ,  H04L9/14 ,  H04L9/08 ,  H04L9/30 ,  H04L29/06 ,  H04L9/00

CPC分类号： H04L9/0625 ,  H04L9/008 ,  H04L9/0656 ,  H04L9/085 ,  H04L9/0869 ,  H04L9/14 ,  H04L9/30 ,  H04L9/3247 ,  H04L63/062 ,  H04L2209/608

摘要： Methods and systems are described for enabling secure delivery and watermarking of at least part of a content item X using a split-key cryptosystem comprising encryption and decryption algorithms E and D, a key generating algorithm for generating encryption and decryption keys e, d, a split-key algorithm for splitting e into i different split-encryption keys e1, e2, . . . , ei and/or for splitting d into k different split-decryption keys d1, d2, . . . , dk respectively wherein i, k≧1 and i+k>2; wherein executing i consecutive encryption operations and k consecutive decryption operations on content item X using said split-encryption and split-decryption keys respectively, generates a fully decrypted content item X (Ddk(Ddk-1( . . . (Dd2(Dd1(Eei(Eei-1( . . . (Ee2(Ee1(X)) . . . ))=X).

摘要翻译： 描述了使用包括加密和解密算法E和D的分组密码系统来实现至少部分内容项目X的安全传递和水印的方法和系统，用于生成加密和解密密钥e，d，a的密钥生成算法 用于将e分解成不同分裂加密密钥e1，e2，...的分裂算法。 。 。 ，ei和/或用于将d分解成k个不同的分解解密密钥d1，d2，...。 。 。 ，dk，其中i，k≥1和i + k> 2; 其中分别使用所述分解加密和分解解密密钥对内容项目X执行i个连续的加密操作和k个连续的解密操作，生成完全解密的内容项目X（Ddk-1（...）（Dd2（Dd1 （Eei-1（...（Ee2（Ee1（X））...））= X）。

公开(公告)号：US20130326082A1

公开(公告)日：2013-12-05

申请号：US13905133

申请日：2013-05-30

申请人： Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO ,  Koninklijke KPN N.V.

发明人： Hans Maarten Stokking ,  Ray van Brandenburg ,  Mattijs Oskar van Deventer

IPC分类号： H04L29/06

CPC分类号： H04N21/4307 ,  H04L29/06517 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/6437

摘要： Methods and systems for inter-destination synchronization in first and second receivers for content parts associated with a play-out timeline are disclosed. First timing information comprising first content part identifiers and associated first clock times may be determined, where the first receiver may receive a first content part identifier comprising first fingerprints for identifying a first content part in a first media stream. Second timing information comprising second content part identifiers and associated second clock times may be determined, where the second receiver may receive a second content part identifier identifying a second content part in a second media stream based on the first and second timing information. A timing difference in processing a content part in the first and second media streams may be calculated. Based on the timing difference, synchronization information for inter destination synchronization between said first and second streams may be generated.

摘要翻译： 公开了用于与播出时间线相关联的内容部分的用于第一和第二接收器中的目的地间同步的方法和系统。 可以确定包括第一内容部分标识符和相关联的第一时钟时间的第一定时信息，其中第一接收机可以接收包括用于识别第一媒体流中的第一内容部分的第一指纹的第一内容部分标识符。 可以确定包括第二内容部分标识符和相关联的第二时钟时间的第二定时信息，其中第二接收机可以基于第一和第二定时信息接收识别第二媒体流中的第二内容部分的第二内容部分标识符。 可以计算处理第一和第二媒体流中的内容部分的定时差。 基于定时差，可以产生用于所述第一和第二流之间的目的地间同步的同步信息。

公开(公告)号：US20180098173A1

公开(公告)日：2018-04-05

申请号：US15717541

申请日：2017-09-27

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Ray van Brandenburg ,  Arjen Timotheus Veenhuizen ,  Mattijs Oskar van Deventer ,  Lucia D'Acunto ,  Emmanuel Didier Rémi Thomas

IPC分类号： H04S7/00 ,  G10L19/008

CPC分类号： H04S7/303 ,  G10L19/008 ,  H04S2400/11

摘要： Method for processing audio objects by an audio client apparatus is described wherein the method comprises:receiving or determining spatial listener information, the spatial listener information defining including one or more listener positions, orientations and/or foci of one or more listeners in the audio space; the audio client apparatus selecting one or more audio object identifiers from a set of audio object identifiers defined in a manifest file stored in a memory of the audio client apparatus, an audio object identifier defining an audio object being associated with audio object position information for defining one or more positions of the audio object in the audio space; the selecting of the one or more audio object identifiers by said audio client apparatus being based on the spatial listener information and the audio object position information of audio object identifiers in said manifest file; and, the audio client apparatus using said one or more selected audio object identifiers to request transmission of audio data and audio object metadata associated with the one or more audio objects defined by the selected audio object identifiers to said audio client apparatus.

公开(公告)号：US20140115724A1

公开(公告)日：2014-04-24

申请号：US14056127

申请日：2013-10-17

申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor Toegepast- Natuurwetenschappelijk Onderzoek TNO

发明人： Ray van Brandenburg ,  Mattijs Oskar van Deventer ,  Martin Prins

IPC分类号： G06F21/10

CPC分类号： G06F21/10 ,  H04L63/0807 ,  H04L63/0846 ,  H04L65/4084 ,  H04L67/02

摘要： A token-based validation method for delivery of at least part of a segmented content item and a content delivery system configured for executing such method are described. Said segmented content item may be associated with at least one manifest file comprising one or more segment identifiers. The method may comprises the steps of: a content processing device sending a first segment request message comprising a first segment identifier associated with a first segment to said at least one delivery node; generating first validation information for use with a further second segment request message, said first validation information comprising at least a first token and associated first timing information; and, sending a first response message and said first validation information to said content processing device, said first response message comprising at least part of said segment or location information associated with at least one delivery node for delivering said segment.

摘要翻译： 描述了用于递送至少部分分段内容项目和配置用于执行该方法的内容递送系统的基于令牌的验证方法。 所述分段内容项目可以与包括一个或多个分段标识符的至少一个清单文件相关联。 该方法可以包括以下步骤：内容处理设备向所述至少一个递送节点发送包括与第一段相关联的第一段标识符的第一段请求消息; 生成用于另外的第二段请求消息的第一验证信息，所述第一验证信息至少包括第一令牌和相关联的第一定时信息; 并且向所述内容处理设备发送第一响应消息和所述第一确认信息，所述第一响应消息包括与用于递送所述段的至少一个递送节点相关联的所述段或位置信息的至少一部分。