公开(公告)号：EP4037291A1

公开(公告)日：2022-08-03

申请号：EP22157699.4

申请日：2015-07-28

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

发明人： BANGMA, Menno ,  STOKKING, Hans Maarten ,  DEN HARTOG, Frank

IPC分类号： H04L47/10 ,  H04L47/80

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.

公开(公告)号：EP3017605A1

公开(公告)日：2016-05-11

申请号：EP14734176.2

申请日：2014-07-02

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

发明人： WISSINGH, Bastiaan ,  BANGMA, Menno ,  VAN BRANDENBURG, Ray ,  VAN DEVENTER, Mattijs Oskar

IPC分类号： H04N21/262 ,  H04N21/458 ,  H04N21/442 ,  H04N21/466 ,  H04N21/845

CPC分类号： H04L65/4069 ,  H04L65/601 ,  H04N21/26258 ,  H04N21/44209 ,  H04N21/44222 ,  H04N21/458 ,  H04N21/4667 ,  H04N21/8456

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.

公开(公告)号：EP2929695A1

公开(公告)日：2015-10-14

申请号：EP13807964.5

申请日：2013-12-10

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

发明人： VAN BRANDENBURG, Ray ,  BANGMA, Menno ,  VAN DER VLAG, Hendrik

IPC分类号： H04N21/845 ,  H04N21/643 ,  H04N21/8352 ,  H04N21/462 ,  H04N21/4627 ,  H04N21/4405 ,  H04N21/262 ,  H04N21/482 ,  H04N21/266 ,  H04N21/458

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.

公开(公告)号：EP3179669B1

公开(公告)日：2018-09-19

申请号：EP16203128.0

申请日：2016-12-09

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

发明人： BANGMA, Menno ,  VEUGEN, Peter

IPC分类号： H04L9/00 ,  H04L9/08

CPC分类号： H04L9/008 ,  H04L9/0836 ,  H04L2209/603

摘要： A method, suitable for content delivery, is described of communicating a value originating at a first node which forms a part of a first entity, to a third node, which first and second node are separated by a second node which is arranged to generate a key distribution scheme. The third node is arranged to receive keys distributed via the key distribution scheme. The method comprises encrypting the value at the first node using a number N generated by the first entity, and a random number r i generated by the third entity, and where r i and N do not have a common divisor, N has large prime factors p and q, and the second entity is in receipt of N but is not in receipt of p and q. The encrypted value is transmitted from the first node through the second node to the third node.

公开(公告)号：EP3069522A1

公开(公告)日：2016-09-21

申请号：EP14799757.1

申请日：2014-11-17

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

发明人： BANGMA, Menno ,  VAN BRANDENBURG, Ray

IPC分类号： H04N21/43 ,  H04N21/41 ,  H04N21/231

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.

公开(公告)号：EP3020204A1

公开(公告)日：2016-05-18

申请号：EP14736817.9

申请日：2014-07-08

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

发明人： BANGMA, Menno ,  VAN BRANDENBURG, Ray

IPC分类号： H04N21/242 ,  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.

公开(公告)号：EP3179669A1

公开(公告)日：2017-06-14

申请号：EP16203128.0

申请日：2016-12-09

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

发明人： BANGMA, Menno ,  VEUGEN, Peter

IPC分类号： H04L9/00 ,  H04L9/08

CPC分类号： H04L9/008 ,  H04L9/0836 ,  H04L2209/603

摘要： A method, suitable for content delivery, is described of communicating a value originating at a first node which forms a part of a first entity, to a third node, which first and second node are separated by a second node which is arranged to generate a key distribution scheme. The third node is arranged to receive keys distributed via the key distribution scheme. The method comprises encrypting the value at the first node using a number N generated by the first entity, and a random number r i generated by the third entity, and where r i and N do not have a common divisor, N has large prime factors p and q, and the second entity is in receipt of N but is not in receipt of p and q. The encrypted value is transmitted from the first node through the second node to the third node.

摘要翻译： 描述了一种适用于内容传递的方法，用于将源自构成第一实体的一部分的第一节点的值传递给第三节点，该第三节点由第二节点分隔，该第二节点被布置成生成 密钥分配方案。 第三节点被安排成接收通过密钥分配方案分配的密钥。 该方法包括使用由第一实体产生的数目N和由第三实体产生的随机数ri对第一节点处的值进行加密，并且其中ri和N不具有公约数，N具有较大的素数因子p和 q，而第二个实体收到N但没有收到p和q。 加密值从第一节点通过第二节点传输到第三节点。

公开(公告)号：EP3175580A1

公开(公告)日：2017-06-07

申请号：EP15750265.9

申请日：2015-07-28

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

发明人： BANGMA, Menno ,  STOKKING, Hans Maarten ,  DEN HARTOG, Frank

IPC分类号： H04L12/18 ,  H04L12/801

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.

摘要翻译： 描述了用于管理第一和第二网络之间的数据流的系统，其中节点实体传送寻址到第二网络中的目的地设备的数据流，并且网关实体从第一网络接收数据流。 网关实体识别目的地设备的至少一个特性，并以特性与数据流相关的方式将其发送到第一网络中的节点实体。 节点实体从网关实体接收目的设备的特性，并将其与数据流相关联，并基于至少一个特性对数据流执行服务质量管理。 还描述了一种网关设备和一种管理数据流的方法。 该系统，网关，节点和方法扩展了QoS性能和管理的应用。

公开(公告)号：EP3510786A2

公开(公告)日：2019-07-17

申请号：EP17764408.5

申请日：2017-09-08

申请人： Koninklijke KPN N.V.

发明人： BANGMA, Menno ,  VAN BRANDENBURG, Ray ,  VEENHUIZEN, Arjen

IPC分类号： H04N21/4728 ,  H04N21/2343 ,  H04N19/167 ,  H04N19/174 ,  H04N19/40 ,  H04N19/88

公开(公告)号：EP2143104A2

公开(公告)日：2010-01-13

申请号：EP08734847.0

申请日：2008-03-28

申请人： Koninklijke KPN N.V. ,  Nederlandse Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek TNO

发明人： BEERENDS, John, Gerard ,  VAN VUGT, Jeroen, Martijn ,  BANGMA, Menno ,  NIAMUT, Omar, Aziz ,  BUSZ, Bartosz

IPC分类号： G10L19/00

CPC分类号： G10L25/69 ,  H04M3/2236

摘要： Method and processing system for establishing the impact of time response distortion of an input signal which is applied to an audio transmission system (10) having an input and an output. A processor (11) is connected to the audio transmission system (10) for receiving the input signal (X(t)) and the output signal (Y(t)), and the processor (11) is arranged for outputting a time response degradation impact quality score. The processor (11) executes preprocessing of the input signal (X(t)) and output signal (Y(t)) to obtain pitch power densities (PPX(f)n, PPY(f)n) comprising pitch power density values for cells in the frequency (f) and time (n) domain, calculating a pitch power ratio function (PPR(f)n) of the pitch power densities for each cell, and determining a time response distortion quality score (MOSTD) indicative of the transmission quality of the system (10) from the pitch power ratio function (PPR(f)n).