公开(公告)号：EP4437732A1

公开(公告)日：2024-10-02

申请号：EP22812754.4

申请日：2022-11-21

申请人： V-Nova International Limited

发明人： SPARANO, Daniele

IPC分类号： H04N21/2343 ,  H04N21/236 ,  H04N21/44 ,  H04N21/845

CPC分类号： H04N21/234327 ,  H04N21/23605 ,  H04N21/44 ,  H04N21/8451

公开(公告)号：EP4383729A1

公开(公告)日：2024-06-12

申请号：EP22212005.7

申请日：2022-12-07

申请人： Axis AB

发明人： Edpalm, Viktor ,  Cremon, Jonas

IPC分类号： H04N21/24 ,  H04N21/2662 ,  H04N21/60 ,  H04N21/647 ,  H04N21/2343 ,  H04L69/40 ,  H04L45/28 ,  H04N7/18

CPC分类号： H04N21/24 ,  H04N21/2662 ,  H04N21/2402 ,  H04N21/234381 ,  H04N21/64792 ,  H04N21/234327 ,  H04L69/40 ,  H04L41/0663 ,  H04N7/183 ,  H04N21/60 ,  H04L43/0876 ,  H04L65/752 ,  H04L65/80 ,  H04L65/1059

摘要： The present invention generally relates to a method of failover recording of video streams in a camera (100) connectable to a receiver device (116, 118) over a communication network (114), the method comprising: detecting (S102) that a bandwidth of a connection over the communication network is insufficient for transmitting a video stream at a predetermined bitrate, generating (S104) multiple parallel encoded video streams with different bitrates, storing (S106) the multiple parallel encoded video streams on a memory storage accessible to the camera, detecting (S108) that the memory storage usage of the memory storage exceeds a storage threshold, discontinuing (S110) the storing of one of the multiple encoded video streams being the encoded video stream that provides the highest bitrate among the multiple encoded video streams, and discarding (S112) the one of the multiple encoded video streams from the memory storage.

公开(公告)号：EP3417632A1

公开(公告)日：2018-12-26

申请号：EP16718438.1

申请日：2016-03-08

申请人： V-NOVA INTERNATIONAL LTD

发明人： MITTAL, Gaurav

IPC分类号： H04N21/44 ,  H04N21/845 ,  H04N21/2343

CPC分类号： H04N21/44004 ,  H04N21/234327 ,  H04N21/8456

摘要： A method of buffering segments of encoded data at a decoder or client device where the segments of data have been encoded using a scalable video coding (SVC) scheme comprising base layer segments and one or more enhancement layer segments. The base layer segments are decodable to a base level of reproduction quality and the enhancement layer segments, together with the base layer segments, are decodable to an enhanced level of reproduction quality. The client device/decoder initially sets a prescribed time period, P, which can be related to a playback time of each data segment or the amount of data in each segment. It then proceeds to buffer a base layer segment, 310-0, together with as much of the enhancement layer segment as possible, 310-1, 310-2, within the set prescribed time period. The buffered base layer segment and what is received of the enhancement layer segment is then decoded and output.

公开(公告)号：EP2137974B1

公开(公告)日：2018-12-12

申请号：EP08737971.5

申请日：2008-04-23

申请人： Nokia Technologies Oy

发明人： WANG, Ye-Kui ,  HANNUKSELA, Miska

IPC分类号： H04N19/172

CPC分类号： H04N19/174 ,  H04N19/127 ,  H04N19/136 ,  H04N19/172 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N21/234327 ,  H04N21/234381 ,  H04N21/4382 ,  H04N21/4621 ,  H04N21/64707 ,  H04N21/8455 ,  H04N21/8547

摘要： The exemplary embodiments of this invention provide in one aspect thereof an ability to signal multiple decoding times for each sample in a file format level in order to allow, for example, different decoding times for each sample (or sample subset) between decoding an entire stream and decoding a subset of the stream. An alternate decoding time box is specified to allow for the signaling of multiple decoding times for each sample. Such a box can contain a compact version of a table that allows indexing from an alternate decoding time to a sample number, where an alternate decoding time is a decoding time to be used with a sample when only a subset of an elementary stream stored in a track is to be decoded. Furthermore, each entry in the table provides the number of consecutive samples with the same time delta, and the delta between those consecutive samples. By adding the deltas a complete time-to-sample map can be constructed.

公开(公告)号：EP2640073B1

公开(公告)日：2018-09-19

申请号：EP11839222.4

申请日：2011-11-10

申请人： Electronics and Telecommunications Research Institute ,  Kookmin University Industry Academy Cooperation Foundation

发明人： KIM, Sung Hoon ,  CHO, Suk Hee ,  MOON, Kyung Ae ,  CHOI, Jin Soo ,  KIM, Jin Woong ,  KANG, Dong Wook ,  JUNG, Kyeong Hoon

IPC分类号： H04N13/161 ,  H04N13/194 ,  H04N21/2343 ,  H04N21/2365 ,  H04N21/43

CPC分类号： H04N13/106 ,  H04N13/161 ,  H04N13/194 ,  H04N19/00 ,  H04N19/132 ,  H04N19/136 ,  H04N19/172 ,  H04N19/587 ,  H04N19/597 ,  H04N21/234327 ,  H04N21/2365 ,  H04N21/4307 ,  H04N21/4347

摘要： A method and apparatus for determining an image compression format of a 3-dimensional television (3DTV). The method may include encoding a high-quality image and transmitting the encoded high-quality image through a first channel, determining an image compression format in which a resolution of the encoded low-quality image is higher than or equal to a reference value in comparison to the high-quality image, and encoding the low-quality image according to the determined image compression format and transmitting the encoded low-quality image through a second channel.

公开(公告)号：EP2382756B1

公开(公告)日：2018-08-22

申请号：EP09807448.7

申请日：2009-12-31

申请人： Lewiner, Jacques ,  Libault, David

发明人： LIBAULT, David ,  GONZALEZ, Jérôme

IPC分类号： H04M1/725 ,  H04N7/173 ,  H04N19/30 ,  H04N19/51 ,  H04N19/61 ,  H04N19/85 ,  H04N21/2343 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/431 ,  H04N21/434 ,  H04N21/44 ,  H04N21/422 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L67/08 ,  H04L67/04 ,  H04L67/38 ,  H04M1/7253 ,  H04N7/17318 ,  H04N19/30 ,  H04N19/51 ,  H04N19/61 ,  H04N19/85 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/42202 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/4347 ,  H04N21/44012

公开(公告)号：EP2919408B1

公开(公告)日：2018-06-20

申请号：EP15160670.4

申请日：2011-02-01

申请人： LG Electronics Inc.

发明人： Ko, Woo Suk ,  Moon, Sang Chul

IPC分类号： H04L1/00 ,  H04L27/26 ,  H04B7/04 ,  H04H20/33

CPC分类号： H04L1/0071 ,  H03M13/09 ,  H03M13/27 ,  H04H20/33 ,  H04H20/72 ,  H04L1/0047 ,  H04L1/0668 ,  H04L27/2623 ,  H04L27/2628 ,  H04L27/2647 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/4383 ,  H04N21/6112

摘要： According to one embodiment of the present invention, a broadcast signal receiver comprises a first OFDM demodulator and a second OFDM demodulator which perform OFDM demodulation on a first M*M-QAM-type broadcast signal and on a second M*M-QAM-type broadcast signal, respectively; a first frequency deinterleaver and a second frequency deinterleaver which deinterleave the first OFDM-demodulated broadcast signal and the second OFDM-demodulated broadcast signal, respectively, in a frequency domain; a first frame parser and a second frame parser which parse frame structures of the first deinterleaved broadcast signal and the second deinterleaved broadcast signal, respectively; a first time deinterleaver and a second time deinterleaver which deinterleave the first frame-parsed broadcast signal and the second frame-parsed broadcast signal, respectively, in a time domain; a MIMO decoder which performs MIMO decoding on the first time-deinterleaved broadcast signal and on the second time-deinterleaved broadcast signal to output a first M-QAM-type signal and a second M-QAM-type signal; and a merger which merges the first M-QAM-type signal and the second M-QAM-type signal.

公开(公告)号：EP2498486B1

公开(公告)日：2018-03-21

申请号：EP10826254.4

申请日：2010-07-13

申请人： Sony Interactive Entertainment Inc.

发明人： OHBA, Akio ,  SEGAWA, Hiroyuki ,  INADA, Tetsugo

IPC分类号： H04N5/225 ,  G06T3/40 ,  G06T3/00

CPC分类号： H04N7/163 ,  G06T3/0025 ,  G06T3/40 ,  H04N7/14 ,  H04N21/234327 ,  H04N21/4122 ,  H04N21/4223 ,  H04N21/440263

摘要： A camera (100) outputs to a host terminal(20) a video for displaying on a display. An image acquisition unit (102) acquires unprocessed images captured using an imaging element. A simple demosaicing unit (106) demosaics the unprocessed images. A pyramid filter unit (170) converts the unprocessed images in stages to multiple reduced images having different resolutions. An image transmission unit (150) is provided with a selection unit which selects a part of unprocessed images as a specified area, and selects one of the multiple reduced images as a designated reduced image. The selected designated reduced image and the data of the selected specific area of the unprocessed images are sent to the host terminal by means of a communication unit (108) to undergo further image processing.

公开(公告)号：EP3288229A1

公开(公告)日：2018-02-28

申请号：EP16783324.3

申请日：2016-03-08

申请人： Electronics and Telecommunications Research Institute

发明人： LEE, Jae-Young ,  PARK, Sung-Ik ,  KWON, Sun-Hyoung ,  KIM, Heung-Mook

IPC分类号： H04L27/26 ,  H04L1/00 ,  H04N21/2343 ,  H04N21/236 ,  H04N19/187

CPC分类号： H04N7/081 ,  H04H20/42 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L27/26 ,  H04L27/2601 ,  H04N3/28 ,  H04N5/445 ,  H04N19/187 ,  H04N21/2343 ,  H04N21/234327 ,  H04N21/236 ,  H04N21/2383 ,  Y02D70/168

摘要： An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling, size information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.

摘要翻译： 公开了一种使用分层分割复用的广播信号帧的设备和方法。 根据本发明实施例的用于生成广播信号帧的设备包括：组合器，被配置为通过组合不同功率级的核心层信号和增强层信号来生成复用信号; 功率规范器，被配置为将所述多路复用信号的功率降低到与所述核心层信号相对应的功率电平; 时间交织器，被配置为通过执行交织来生成时间交织信号，所述交织被应用于所述核心层信号和所述增强层信号; 以及帧生成器，被配置为生成广播信号帧，所述广播信号帧包括用于信令的前导码，由所述核心层信号和所述增强层信号共享的物理层管道（PLP）的大小信息和时间交织器信息。

公开(公告)号：EP3273698A1

公开(公告)日：2018-01-24

申请号：EP17191173.8

申请日：2012-06-25

申请人： Google Technology Holdings LLC

发明人： RAMAMURTHY, Shailesh ,  GONDI, Santosh

IPC分类号： H04N21/433 ,  H04N21/2343 ,  H04N21/44 ,  H04N21/6587 ,  H04L29/06 ,  H04N21/24 ,  H04N21/472 ,  H04N21/61 ,  H04N21/643

CPC分类号： H04N21/2408 ,  H04L65/4084 ,  H04L65/601 ,  H04L65/607 ,  H04L65/80 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/4331 ,  H04N21/44004 ,  H04N21/472 ,  H04N21/6175 ,  H04N21/64322 ,  H04N21/6587

摘要： A method comprises receiving a multimedia content stream comprising a series of segments, each segment corresponding to a respective predicted seek position of a plurality of predicted seek positions in the multimedia content stream, determining a likelihood of receiving a seek request from a user to move from a current playout position in the multimedia content stream to one of the predicted seek positions in the multimedia content stream, and determining, by a processor, a size of a buffer for each segment in the multimedia content stream based on the likelihood of receiving the seek request. A system and a non-transitory machine-readable storage medium are also disclosed and claimed.

摘要翻译： 一种方法包括接收包括一系列片段的多媒体内容流，每个片段对应于多媒体内容流中的多个预测的搜索位置中的相应的预测搜索位置，确定接收来自用户的搜索请求的可能性以从 将所述多媒体内容流中的当前播放位置提供给所述多媒体内容流中的所述预测搜索位置中的一个;以及由处理器基于接收所述搜索的可能性来确定所述多媒体内容流中的每个片段的缓冲器的大小 请求。 系统和非暂时性机器可读存储介质也被公开和要求保护。