公开(公告)号：EP2151075A2

公开(公告)日：2010-02-10

申请号：EP08776420.5

申请日：2008-05-30

申请人： Nokia Corporation

发明人： HANNUKSELA, Miska ,  VADAKITAL, Vinod Kumar Malamal ,  BOUAZIZI, Imed

IPC分类号： H04H20/26 ,  H04N7/24 ,  H04H20/42

CPC分类号： H04H20/426 ,  H04H20/22 ,  H04N7/24 ,  H04N21/238 ,  H04N21/41407 ,  H04N21/4384 ,  H04N21/64315

摘要： A system and method for providing faster tuning into a chosen program in a time- sliced multicast and/or broadcast transmission environment. Multimedia data of the same source material but of different transmission and presentation characteristics are coded and compressed. According to various embodiments, simulcast streams of a program are time-sliced, placed maximally apart from each other in terms of transmission time, and sent over the channel.

摘要翻译： 一种用于在时间分片多播和/或广播传输环境中提供更快调谐到所选节目中的系统和方法。 对相同源素材但具有不同传输和呈现特性的多媒体数据进行编码和压缩。 根据各种实施例，节目的联播流被时间分片，在传输时间方面彼此最大地分开并且在信道上发送。

公开(公告)号：EP2147558A2

公开(公告)日：2010-01-27

申请号：EP08737871.7

申请日：2008-04-15

申请人： Nokia Corporation

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

IPC分类号： H04N7/66

CPC分类号： H04L1/0061 ,  H04L1/1671 ,  H04N19/30 ,  H04N19/34 ,  H04N19/61 ,  H04N19/70

摘要： A system and method provides a first integrity check code that can be calculated at an encoder and then sent to a decoder as a supplemental enhancement information message. The decoder can then calculate a second integrity check code over the actual received network abstraction layer units. This second integrity check code can be compared with the encoder-generated first integrity check code sent via the supplemental enhancement information message to indicate if in fact all of the transmitted NAL units from which the integrity check code was generated have been received without changes in their content. In addition, an error tracking algorithm is provided that can be run at either the encoder or the decoder in order to determine if the network abstraction layer units are correct in content at the decoder level. Therefore, pictures that are sent as just intra coded frames and pictures that are sent as just inter coded frames can both be checked for errors. Hence, error checking can be provided in those situations where the decoder fails to provide adequate information to the encoder as to what has actually been decoded.

公开(公告)号：EP2137972A2

公开(公告)日：2009-12-30

申请号：EP08737922.8

申请日：2008-04-18

申请人： Nokia Corporation

发明人： HANNUKSELA, Miska

IPC分类号： H04N7/24 ,  H04N7/26 ,  H04N5/00 ,  H04N7/54

CPC分类号： H04N21/6437 ,  H04N19/107 ,  H04N19/172 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N21/4384 ,  H04N21/64315

摘要： A system and method by which instantaneous decoding refresh (IDR)/intra pictures that enable one to tune in or randomly access a media stream are included within a 'normal' bitstream as redundant coded pictures. In various embodiments, each intra picture for tune-in is provided as a redundant coded picture, in addition to the corresponding primary inter-coded picture.

公开(公告)号：EP2119187A2

公开(公告)日：2009-11-18

申请号：EP08719449.4

申请日：2008-02-22

申请人： Nokia Corporation

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

IPC分类号： H04L29/06 ,  H04N7/26 ,  H04N7/24

CPC分类号： H04L65/607 ,  H04L65/608 ,  H04N19/597 ,  H04N19/61

摘要： A system and method for conveying information that is helpful for a network middlebox or a media player to decided which coded data units to forward or process within an RTP payload or a file format data unit in an easy-to-access manner. This mechanism can be used to provide indications of items such as redundant coded pictures, temporal level switching points, gradual decoding refresh access points, view identifiers, and view random access points. A middlebox and/or receiver can then use this information to determine whether certain coded data units need to be processed and/or transmitted.

摘要翻译： 一种用于传送有助于网络中间盒或媒体播放器的信息的系统和方法，用于决定哪些编码数据单元以易于访问的方式转发或处理RTP有效载荷或文件格式数据单元。 该机制可以用于提供冗余编码图像，时间级别切换点，逐渐解码刷新接入点，视图标识符和查看随机接入点等项目的指示。 然后，中间箱和/或接收器可以使用该信息来确定是否需要处理和/或发送某些编码数据单元。

公开(公告)号：EP2100459A1

公开(公告)日：2009-09-16

申请号：EP08700204.4

申请日：2008-01-05

申请人： Nokia Corporation

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

IPC分类号： H04N7/50

CPC分类号： H04N21/222 ,  H04N19/30 ,  H04N19/40 ,  H04N19/46 ,  H04N19/70 ,  H04N21/234309 ,  H04N21/23439 ,  H04N21/2353 ,  H04N21/24 ,  H04N21/25833 ,  H04N21/2662

摘要： A system and method for identifying when an indicated or predetermined media transcoding process results in a media stream that is compliant with an indicated interoperability point. Various embodiments allow for the encoding, storage, transcoding, and transmission of a media stream, for which a transcoding process is identified and the resulting media stream of the transcoding process is associated with at least one property. The signaling of the property or properties, and an identification of the transcoding process in one embodiment, may be included in the media bitstream, in a file format container containing the media bitstream, or in a transmission or control protocol for transmission or control of the media bitstream.

公开(公告)号：EP2080379A2

公开(公告)日：2009-07-22

申请号：EP07849071.1

申请日：2007-10-15

申请人： Nokia Corporation

发明人： UGUR, Kemal ,  LAINEMA, Jani ,  HANNUKSELA, Miska

IPC分类号： H04N7/26 ,  H04N13/00

CPC分类号： H04N19/59 ,  H04N19/105 ,  H04N19/117 ,  H04N19/129 ,  H04N19/176 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/517 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

摘要： A system and method for enabling parallel decoder implementation for different views, even when there are existing dependencies between views. In various embodiments of the present invention, information is signaled to a decoder that slices are coded using certain constraints, so that parallel decoding of slices is possible. This signaling can be performed at a sequence parameter set level, or it could be performed at picture parameter set level, slice header level or macroblock header level. Additionally, the delay between various views is also signaled to the decoder, at the same location as the constraint information in various embodiments. Various algorithms can also be used to improve the coding efficiency of the system.

公开(公告)号：EP1969855A1

公开(公告)日：2008-09-17

申请号：EP06820840.4

申请日：2006-11-02

申请人： Nokia Corporation

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

IPC分类号： H04N7/66 ,  H04N7/50

CPC分类号： H04N21/6336 ,  G06F11/1004 ,  H04L1/242 ,  H04N19/164 ,  H04N19/42 ,  H04N19/46 ,  H04N19/89 ,  H04N21/6379

摘要： The present invention provides a method and a system for verifying a match between states of a first video processor and a second video processor, wherein one of said first and second video processors is a video encoder utilizing predictive video encoding and the other one of said first and second video processors is a video decoder capable of reproducing a decoded bit stream from an encoded bit stream generated by said video encoder.

公开(公告)号：EP1932315A1

公开(公告)日：2008-06-18

申请号：EP06795398.4

申请日：2006-09-01

申请人： Nokia Corporation

发明人： SETLUR, Vidya ,  CHITURI, Suresh ,  CAPIN, Tolga ,  INGRASSIA, Michael ,  ZHONG, Daidi ,  HANNUKSELA, Miska

IPC分类号： H04L29/06

CPC分类号： G06F17/2247 ,  H04L29/06027 ,  H04L65/4076 ,  H04L65/607 ,  H04N19/20

摘要： A method of embedding vector graphics content such as SVG into the 3GPP ISO Base Media File Format for progressive downloading or streaming of live rich media content over MMS/PSS/MBMS services. The method of the present invention allows the file format to be used for the packaging of rich media content including graphics, video, text and images; enables streaming servers to generate RTP packets; and enables clients to realize, play, or render rich media content.

公开(公告)号：EP1867079A1

公开(公告)日：2007-12-19

申请号：EP06725903.6

申请日：2006-04-05

申请人： Nokia Corporation

发明人： HANNUKSELA, Miska

IPC分类号： H04H1/00 ,  H04L29/06 ,  H04N7/24 ,  H04N7/26 ,  H04N7/64 ,  H04H1/10

CPC分类号： H04N21/64322 ,  H04H60/06 ,  H04L1/0041 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/30 ,  H04L47/50 ,  H04L47/56 ,  H04L49/90 ,  H04L49/9094 ,  H04L65/607 ,  H04L65/608 ,  H04N21/23406 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/44004 ,  H04N21/64315 ,  H04N21/64738

摘要： Buffering packets of a media stream for transmission from a transmitting device to a receiving device. Media packets are formed from at least one kind of media information in a stream generator; at least one transmission frame is generated on the basis of media packets to be transmitted; packets to be transmitted are formed from the at least one transmission frame ; and a transmission schedule is generated for packets to be transmitted. In addition, a first step and a second step of hypothetical decoding are also performed. The first step of hypothetical decoding is performed according to the transmission schedule and comprises buffering the packets to be transmitted according to the transmission schedule to a first hypothetical decoding buffer; and outputting packets from the first hypothetical decoding buffer on a transmission frame basis. The second step of hypothetical decoding comprises controlling the buffer occupancy level of the first hypothetical decoding buffer and the second hypothetical decoding buffer by controlling at least one of the following: the operation of the stream generator; the generation of at least one transmission frame; the transmission schedule.

摘要翻译： 缓冲媒体流的分组，用于从发送设备传输到接收设备。 媒体分组由流发生器中的至少一种媒体信息形成; 基于要发送的媒体分组生成至少一个传输帧; 要发送的分组由至少一个传输帧形成; 并且为要发送的分组生成传输调度。 此外，还执行假设解码的第一步骤和第二步骤。 假设解码的第一步骤根据传输调度进行，并且包括根据传输调度将要发送的分组缓存到第一假设解码缓冲器; 以及基于传输帧从第一假设解码缓冲器输出分组。 假设解码的第二步包括通过控制以下至少一个来控​​制第一假设解码缓冲器和第二假想解码缓冲器的缓冲器占用水平：流发生器的操作; 生成至少一个传输帧; 传输时间表。

公开(公告)号：EP1813115A1

公开(公告)日：2007-08-01

申请号：EP05813004.8

申请日：2005-11-16

申请人： Nokia Corporation

发明人： HANNUKSELA, Miska

IPC分类号： H04N7/24 ,  H04L12/56

CPC分类号： H04N21/6437 ,  H04L1/0042 ,  H04L47/2416 ,  H04L47/50 ,  H04N21/23406 ,  H04N21/23805 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/262 ,  H04N21/4382 ,  H04N21/44004

摘要： Buffering packets of a media stream for transmission from a device for transmitting to a device for receiving. Media packets are formed from at least one kind of media information in a stream generator; forward error correction data is formed on the basis of the media packets; one or more repair packets are formed on the basis of the forward error correction data; and a transmission schedule is generated for packets to be transmitted. In addition, hypothetical decoding is also performed according to the transmission schedule. The hypothetical decoding comprises buffering the packets to be transmitted according to the transmission schedule to a hypothetical decoding buffer; and controlling the buffer occupancy level of the hypothetical decoding buffer by controlling the operation of the stream generator.