公开(公告)号：EP3100458B1

公开(公告)日：2018-08-15

申请号：EP14704511.6

申请日：2014-01-31

Applicant: Thomson Licensing

Inventor： STEWART, John Sidney

IPC: H04N21/422 ,  H04N21/222 ,  H04N21/233 ,  H04N21/242 ,  H04N21/41 ,  H04N21/6336 ,  H04N21/647

CPC classification number: H04N21/242 ,  H04N21/2223 ,  H04N21/233 ,  H04N21/4122 ,  H04N21/4126 ,  H04N21/42203 ,  H04N21/42222 ,  H04N21/4302 ,  H04N21/4307 ,  H04N21/4394 ,  H04N21/6336 ,  H04N21/64707 ,  H04N21/64723

Abstract: A method for synchronizing playback of a program including a video and associated first audio at a first electronic device with playback of a second audio associated with the program at a second electronic device that also receives the first audio, the method comprising: decoding, by a first audio decoder in the second electronic device, the first audio, and outputting the decoded first audio; decoding, by a second audio decoder in the second electronic device, the second audio and outputting the decoded second audio for playing back by the second electronic device; receiving a user command to synchronize the playback of the video at the first electronic device and playback of the second audio at the second electronic device; responsive to the user command, the method further comprising capturing, by a capturing device in the second electronic device, the playback of the first audio at the first electronic device; determining, by the second electronic device, an offset between the outputted decoded first audio and the captured first audio; and adjusting outputting of the decoded second audio according to the offset, so that the playback of the first audio at the first electronic device is synchronized with the playback of the second audio at the second electronic device.

公开(公告)号：EP3133785A4

公开(公告)日：2018-01-24

申请号：EP15779293

申请日：2015-04-16

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： PARK WOOMYOUNG ,  KIM SANGMIN ,  LIM CHIWOO

IPC: H04L12/851 ,  H03M13/00 ,  H04L12/26

CPC classification number: H04N21/2343 ,  H03M13/005 ,  H03M13/6306 ,  H03M13/6362 ,  H04N21/2401 ,  H04N21/2402 ,  H04N21/2404 ,  H04N21/44209 ,  H04N21/44213 ,  H04N21/44222 ,  H04N21/4425 ,  H04N21/6373 ,  H04N21/64723 ,  H04N21/6473 ,  H04N21/64738 ,  H04N21/6582

Abstract: Disclosed are a method and an apparatus for generating a codeword, and a method and an apparatus for recovering a codeword. An encoder calculates the number of punctured symbol nodes among symbol nodes included in a codeword, punctures symbol nodes located at even or odd number positions among the symbol nodes included in the codeword, calculates the number of symbol nodes which need to be additionally punctured on the basis of the calculated number of the symbol nodes to be punctured, classifies the symbol nodes, which need to be additionally punctured, into one or more punctured node groups on the basis of the calculated number of symbol nodes which need to be punctured, determines the locations on the codeword where the one or more punctured node groups are to be arranged, and punctures the symbol nodes included in the codeword which belong to the punctured node groups according to the determined locations. A transmission unit transmits the codeword.

公开(公告)号：EP3133785A1

公开(公告)日：2017-02-22

申请号：EP15779293.8

申请日：2015-04-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： PARK, Woomyoung ,  KIM, Sangmin ,  LIM, Chiwoo

IPC: H04L12/851 ,  H04L12/26

CPC classification number: H04N21/2343 ,  H03M13/005 ,  H03M13/6306 ,  H03M13/6362 ,  H04N21/2401 ,  H04N21/2402 ,  H04N21/2404 ,  H04N21/44209 ,  H04N21/44213 ,  H04N21/44222 ,  H04N21/4425 ,  H04N21/6373 ,  H04N21/64723 ,  H04N21/6473 ,  H04N21/64738 ,  H04N21/6582

Abstract: Disclosed are a method and an apparatus for generating a codeword, and a method and an apparatus for recovering a codeword. An encoder calculates the number of punctured symbol nodes among symbol nodes included in a codeword, punctures symbol nodes located at even or odd number positions among the symbol nodes included in the codeword, calculates the number of symbol nodes which need to be additionally punctured on the basis of the calculated number of the symbol nodes to be punctured, classifies the symbol nodes, which need to be additionally punctured, into one or more punctured node groups on the basis of the calculated number of symbol nodes which need to be punctured, determines the locations on the codeword where the one or more punctured node groups are to be arranged, and punctures the symbol nodes included in the codeword which belong to the punctured node groups according to the determined locations. A transmission unit transmits the codeword.

Abstract translation: 公开了一种方法和一种用于产生码字的装置，和用于回收到的码字的方法和设备。 编码器计算包括在码字码元节点中打孔符号的节点的数量，刺穿位于符号节点之间的偶数或奇数数目的位置符号的节点包含在码字，计算哪些需要在被附加打孔符号节点的数量 符号节点的计算的数目的基础上被刺穿，分类上述符号的节点，需要被附加地刺破，到一个或多个穿孔的节点组需要被刺破，确定性的地雷符号节点的计算的数目的基础上 对码字，其中所述一个或多个穿孔的节点组是位置被布置，并穿刺包括在属于被删余节点组雅丁到确定性开采地点代码字符号的节点。 发送单元发送的代码字。

公开(公告)号：EP2959716B1

公开(公告)日：2016-10-05

申请号：EP13706501.7

申请日：2013-02-22

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： SKOG, Robert ,  ERIKSSON, Ann-Christine ,  LOHMAR, Thorsten ,  MATUTE ARRIBAS, Victoria ,  SINTORN, Mathias

IPC: H04W28/02 ,  H04L29/06 ,  H04W52/02 ,  H04L12/825 ,  H04W4/20

CPC classification number: H04N21/64738 ,  H04L47/263 ,  H04L65/4084 ,  H04L65/605 ,  H04L65/80 ,  H04N21/23805 ,  H04N21/2381 ,  H04N21/64723 ,  H04W4/20 ,  H04W28/0247 ,  H04W52/0206 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262

Abstract: A technique for operating a media distribution network is presented. In the media distribution network media data are transmitted via an access network in media bursts to a media client. Each media burst is followed by an idle period in which no media data are transmitted. A method aspect of this technique comprises receiving, from an access network node, a control message and adjusting, responsive to the control message, at least one of a media data volume of a media burst and a duration of an idle period following the media burst. The control message may be indicative of a load status of the access network, and the adjustment may be performed taking into account that load status.

Abstract translation: 介绍了一种操作媒体分发网络的技术。 在媒体分发网络中，媒体数据通过媒体脉冲串中的接入网络发送到媒体客户端。 每个媒体突发之后是没有媒体数据传输的空闲时段。 该技术的方法方面包括从接入网络节点接收控制消息，并响应于控制消息，调整媒体突发的媒体数据量和媒体突发之后的空闲时段的持续时间中的至少一个 。 控制消息可以指示接入网络的负载状态，并且可以考虑该负载状态来执行调整。

公开(公告)号：EP2474160A4

公开(公告)日：2013-08-21

申请号：EP09848847

申请日：2009-08-31

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： TAN WAI-TIAN ,  PATTI ANDREW J

IPC: H04N21/238 ,  H04L29/06 ,  H04N21/6437 ,  H04N21/647

CPC classification number: H04N21/23805 ,  H04L65/1083 ,  H04L65/608 ,  H04L65/80 ,  H04N21/6437 ,  H04N21/64723 ,  H04N21/64761

公开(公告)号：EP2277312A1

公开(公告)日：2011-01-26

申请号：EP09716517.9

申请日：2009-03-05

Applicant: Alcatel Lucent

Inventor： ASBUN, Eduardo ,  WALLACE, Robert

IPC: H04N7/24 ,  H04H60/32 ,  G06F11/20 ,  H04L1/22 ,  H04L29/06

CPC classification number: H04N21/6405 ,  G06F11/2007 ,  G06F11/2035 ,  G06F11/2041 ,  H04H60/32 ,  H04L1/22 ,  H04L49/102 ,  H04L49/206 ,  H04L49/557 ,  H04L65/4076 ,  H04L65/80 ,  H04L69/40 ,  H04N21/26208 ,  H04N21/4126 ,  H04N21/4345 ,  H04N21/442 ,  H04N21/6375 ,  H04N21/64723 ,  H04N21/6473

Abstract: In a digital video system, high availability distribution is provided using spare modules such as an integrated receiver decoder, multimedia transcoder and streaming module in support of the primary modules. The primary modules multicast status messages which are monitored by the spare modules. When failure of a primary module is detected, the spare module takes over the role of the failed module, for example by joining the same multicast groups as the failed module and taking over processing of the streams of the failed module. Multiple redundancy schemes are described.

公开(公告)号：EP2103127A1

公开(公告)日：2009-09-23

申请号：EP06835954.6

申请日：2006-12-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： MAS IVARS, Ignacio ,  HALÉN, Joacim ,  KONGALATH, George Philip

IPC: H04N7/173 ,  H04N5/00 ,  H04L12/24 ,  H04L29/06 ,  H04N5/50

CPC classification number: H04N21/2662 ,  H04N21/4384 ,  H04N21/6125 ,  H04N21/6371 ,  H04N21/64723 ,  H04N21/64784

Abstract: The present invention relates to a method and a node in an IETV network. The node according to the present invention is configured to use the knowledge of the user channel switching behaviour in order to predict user channel switching and to make the channels predicted to be used available close to the STB of the user in advance of the anticipated channel switch.

公开(公告)号：EP2057766A2

公开(公告)日：2009-05-13

申请号：EP07836574.9

申请日：2007-08-07

Applicant: Cisco Technology, Inc.

Inventor： FIRESTONE, Scott ,  KADIYALA, Madhavi ,  BAIRD, Randall B. ,  BANGALORE, Manjunath S. ,  SARKAR, Shantanu

IPC: H04J3/06

CPC classification number: H04N21/4347 ,  H04N5/04 ,  H04N5/4401 ,  H04N21/23406 ,  H04N21/23412 ,  H04N21/2365 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/4341 ,  H04N21/44004 ,  H04N21/44012 ,  H04N21/64723 ,  H04N21/8547

Abstract: In one embodiment, a system includes a video mixer coupled with an audio mixer for exchange of information that includes a first set of delay values respecting input audio streams received by the audio mixer from a plurality of source endpoints, and output audio streams sent from the audio mixer to a plurality of destination endpoints. The information further including a second set of delay values respecting the corresponding input video streams. The audio mixer calculates end-to-end video delays, and the video mixer calculates end-to-end audio delays. The audio mixer delays the output audio streams to equalize the end-to-end audio and video delays in the event that the end-to-eπd audio delays are less than the end-to-end video delays, and the video mixer delays the output video streams to equalize the end-to-eπd audio and video delays in the event that the end-to-end video delays are less than the end-to-end audio delays.

公开(公告)号：EP0916223A4

公开(公告)日：2000-01-12

申请号：EP97935244

申请日：1997-07-31

Applicant: TRILITHIC INC

Inventor： HARRIS JAMES E

IPC: H04H20/78 ,  H04N5/21 ,  H04N7/16 ,  H04N7/173 ,  H04N17/00 ,  H04N21/442 ,  H04N21/61 ,  H04N21/647

CPC classification number: H04H20/12 ,  H04H20/78 ,  H04N5/21 ,  H04N7/16 ,  H04N7/17309 ,  H04N17/00 ,  H04N21/44209 ,  H04N21/6118 ,  H04N21/64723

Abstract: A method and apparatus for locating the source of noise ingress into a CATV system return path (16) by coupling a filter (18, 18') having a passband in the noise frequency bandwidth to the nodes between adjacent return path amplifiers (22l, 22m, 22n). The filter (18, 18') is sequentially coupled to the nodes, working away from the CATV system headend (30). A signal level meter (50) or the like monitors the effect on the noise of coupling the filter (18, 18') to the nodes. When a node is reached at which coupling of the filter (18, 18') to the node no longer has any effect on the signal level in the node, the source of the noise is isolated in the node immediately preceding the node under test.

公开(公告)号：EP3264712A1

公开(公告)日：2018-01-03

申请号：EP16305786.2

申请日：2016-06-28

Applicant: Thomson Licensing

Inventor： FONTAINE, Patrick ,  VIGOUROUX, Jean-Ronan ,  LE MERRER, Erwan

IPC: H04L29/06 ,  H04W12/08 ,  H04W12/02 ,  H04W4/00 ,  H04W56/00 ,  H04W84/12 ,  H04W84/20

CPC classification number: H04W48/04 ,  H04L43/0852 ,  H04L43/16 ,  H04L63/0428 ,  H04L63/104 ,  H04L63/107 ,  H04L65/4076 ,  H04N21/00 ,  H04N21/64723 ,  H04N21/64776 ,  H04W4/06 ,  H04W4/80 ,  H04W8/005 ,  H04W12/02 ,  H04W12/08 ,  H04W56/001 ,  H04W76/14 ,  H04W84/12 ,  H04W84/20

Abstract: A device and a method for authorizing access to a service on a first device (101) upon detection of a second device (100) located in near proximity, while preferably using broadcast transmission. The second device (100) broadcasts on a second broadcast network a message comprising at least a group identifier (701) common to the set of devices that can access the service and a time reference value (703) corresponding to the emission time of the message, according to a common time reference received by all devices from a first broadcast network. The first device (101) authorizes access (470) to the service only if the group identifier received from the message is the same (430) as the group identifier of the device and if the delay between the measured arrival of the message and its emission time is lower (440) than a threshold.