公开(公告)号：US09237101B2

公开(公告)日：2016-01-12

申请号：US12210024

申请日：2008-09-12

申请人： Steve Chen ,  Michael G. Luby ,  Manu Prasad ,  William Seed ,  Thomas Stockhammer

发明人： Steve Chen ,  Michael G. Luby ,  Manu Prasad ,  William Seed ,  Thomas Stockhammer

IPC分类号： H04J3/24 ,  H04J3/06 ,  G06F3/00 ,  G06F11/00 ,  H04L12/801 ,  H04L1/00 ,  H04L1/18

CPC分类号： H04L47/10 ,  H04L1/004 ,  H04L1/0072 ,  H04L1/1841 ,  H04L47/11 ,  H04L2001/0093

摘要： A method of generating Source Identification information from a source packet stream and reliably transmitting the Source Identification information from a source to a destination over a communications channel is provided. The method operates on a set of source packets, wherein Source Identification information for each source packet to be transmitted is derived and delivered with the Source Identification information of all or most other source packets of an associated source block. The method includes techniques to minimize the network bandwidth required to deliver Source Identification information and techniques to overcome network impairments. When combined with FEC techniques, retransmission techniques, or combinations of FEC techniques and retransmission techniques, the methods described herein allow receivers to recover lost source packets, while simultaneously ensuring that the original source packets are not modified and thereby ensuring backwards compatibility for legacy receivers.

摘要翻译： 提供了从源分组流生成源标识信息并通过通信信道将源标识信息从源传送到目的地的方法。 该方法对一组源数据包进行操作，其中将发送要发送的每个源数据包的源标识信息，并使用相关源块的所有或大多数其他源数据包的源标识信息进行传送。 该方法包括最小化传送源标识信息和技术以克服网络损伤所需的网络带宽的技术。 当结合FEC技术，重传技术或FEC技术和重传技术的组合时，本文描述的方法允许接收机恢复丢失的源分组，同时确保原始分组不被修改，从而确保遗留接收机的向后兼容性。

公开(公告)号：US08938010B2

公开(公告)日：2015-01-20

申请号：US12293345

申请日：2007-03-12

申请人： Thomas Stockhammer

发明人： Thomas Stockhammer

IPC分类号： H04N7/12 ,  H04N19/61 ,  H04N19/176

CPC分类号： H04N19/61 ,  H04L29/06027 ,  H04L65/604 ,  H04N19/12 ,  H04N19/172 ,  H04N19/176 ,  H04N19/43 ,  H04N19/44 ,  H04N19/46 ,  H04N21/23424 ,  H04N21/44016

摘要： In the case of a method for decoding a data stream a first decoding means (DR2) is provided which is configured to decode from a data stream in a first data stream format at least two units of user data, wherein for decoding the second unit of the at least two units at least partial information from the first unit of the at least two units is used. Likewise reference data is provided and subsequently the first decoding means (DR2) is initialized with the information from the reference data. The data stream in the first data stream format is supplied to the first decoding means and decoded into at least one unit of user data using the information from the reference data.

摘要翻译： 在对数据流进行解码的方法的情况下，提供了第一解码装置（DR2），其被配置为从第一数据流格式的数据流格式解码至少两个用户数据单元，其中， 使用来自至少两个单元的第一单元的至少两个单元的至少部分信息。 同样提供参考数据，随后用参考数据的信息初始化第一解码装置（DR2）。 将第一数据流格式的数据流提供给第一解码装置，并使用来自参考数据的信息将其解码为至少一个用户数据单元。

公开(公告)号：US20130254631A1

公开(公告)日：2013-09-26

申请号：US13563590

申请日：2012-07-31

申请人： Michael George LUBY ,  Nikolai Konrad LEUNG ,  Ralph Akram GHOLMIEH ,  Thomas STOCKHAMMER

发明人： Michael George LUBY ,  Nikolai Konrad LEUNG ,  Ralph Akram GHOLMIEH ,  Thomas STOCKHAMMER

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L1/0045 ,  H03M13/356 ,  H03M13/3761 ,  H03M13/6306 ,  H04L1/1819 ,  H04L65/4076 ,  H04L67/02

摘要： Data objects are delivered over a packet-switched network and receivers receive encoded symbols, such as repair symbols, broadcast or multicast, with sufficient information to form requests for additional symbols as needed based on what source symbols or sub-symbols are needed or missing. The requests can be made in a unicast or request fashion. Requesting and broadcasting might be done by different entities. A broadcast server can generate and store repair symbols while a source server can store content in source form. A request can be a unicast HTTP byte-range request, such as a URL, starting position and length. Requests might be aligned with starting positions of files. A receiver can calculate starting and ending byte positions of symbols or sub-symbols in a file and get indications that conventional HTTP servers are usable for file repair. Repair servers can request broadcast of repair data when byte-range requests from multiple receivers overlap.

公开(公告)号：US20120042089A1

公开(公告)日：2012-02-16

申请号：US13205565

申请日：2011-08-08

申请人： Ying Chen ,  Thomas Stockhammer ,  Mark Watson

发明人： Ying Chen ,  Thomas Stockhammer ,  Mark Watson

IPC分类号： G06F15/16

CPC分类号： H04L65/604 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/607 ,  H04L65/80

摘要： In one example, a device for retrieving multimedia data, the device comprising one or more processors configured to analyze information of a manifest file for multimedia content, wherein the information of the manifest file indicates that at least one representation of the multimedia content includes a temporal sub-sequence, determine one or more locations of data for the temporal sub-sequence, and submit one or more requests for the data for the temporal sub-sequence.

摘要翻译： 在一个示例中，用于检索多媒体数据的设备，所述设备包括被配置为分析用于多媒体内容的清单文件的信息的一个或多个处理器，其中所述清单文件的信息指示所述多媒体内容的至少一个表示包括时间 子序列，确定时间子序列的数据的一个或多个位置，并且提交用于时间子序列的数据的一个或多个请求。

公开(公告)号：US20110231519A1

公开(公告)日：2011-09-22

申请号：US12887492

申请日：2010-09-21

申请人： Michael G. Luby ,  Mark Watson ,  Lorenzo Vicisano ,  Payam Pakzad ,  Bin Wang ,  Thomas Stockhammer

发明人： Michael G. Luby ,  Mark Watson ,  Lorenzo Vicisano ,  Payam Pakzad ,  Bin Wang ,  Thomas Stockhammer

IPC分类号： G06F15/16

CPC分类号： H04L65/604 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/607 ,  H04L65/80 ,  H04N21/23106 ,  H04N21/23406 ,  H04N21/234327 ,  H04N21/235 ,  H04N21/2401 ,  H04N21/25808 ,  H04N21/2662 ,  H04N21/435 ,  H04N21/44004 ,  H04N21/440227 ,  H04N21/44209 ,  H04N21/84 ,  H04N21/8456

摘要： A block-request streaming system provides for improvements in the user experience and bandwidth efficiency of such systems, typically using an ingestion system that generates data in a form to be served by a conventional file server (HTTP, FTP, or the like), wherein the ingestion system intakes content and prepares it as files or data elements to be served by the file server, which might include a cache. A client device can be adapted to take advantage of the ingestion process as well as improvements that make for a better presentation independent of the ingestion process. The client devices and ingestion system can be coordinated to have a predefined mapping and template for making block requests to HTTP file names that a conventional file server can accept through the use of URL construction rules. Segment size might be specified in an approximate manner for more efficient organization.

摘要翻译： 块请求流系统提供了这样的系统的用户体验和带宽效率的改进，通常使用以传统文件服务器（HTTP，FTP等）服务的形式生成数据的摄取系统，其中 摄取系统进入内容并将其准备为要由文件服务器（可能包括缓存）提供的文件或数据元素。 客户端设备可以适应于摄取过程的优点以及独立于摄取过程的改进。 可以协调客户端设备和摄取系统以具有预定义的映射和模板，以便通过使用URL构造规则对常规文件服务器可以接受的HTTP文件名进行块请求。 可以以近似的方式指定细分大小以提高组织效率。

公开(公告)号：US20090067551A1

公开(公告)日：2009-03-12

申请号：US12210024

申请日：2008-09-12

申请人： Steve Chen ,  Michael G. Luby ,  Manu Prasad ,  William Seed ,  Thomas Stockhammer

发明人： Steve Chen ,  Michael G. Luby ,  Manu Prasad ,  William Seed ,  Thomas Stockhammer

IPC分类号： H04L27/06

CPC分类号： H04L47/10 ,  H04L1/004 ,  H04L1/0072 ,  H04L1/1841 ,  H04L47/11 ,  H04L2001/0093

摘要： A method of generating Source Identification information from a source packet stream and reliably transmitting the Source Identification information from a source to a destination over a communications channel is provided. The method operates on a set of source packets, wherein Source Identification information for each source packet to be transmitted is derived and delivered with the Source Identification information of all or most other source packets of an associated source block. The method includes techniques to minimize the network bandwidth required to deliver Source Identification information and techniques to overcome network impairments. When combined with FEC techniques, retransmission techniques, or combinations of FEC techniques and retransmission techniques, the methods described herein allow receivers to recover lost source packets, while simultaneously ensuring that the original source packets are not modified and thereby ensuring backwards compatibility for legacy receivers.

摘要翻译： 提供了从源分组流生成源标识信息并通过通信信道将源标识信息从源传送到目的地的方法。 该方法对一组源数据包进行操作，其中将发送要发送的每个源数据包的源标识信息，并使用相关源块的所有或大多数其他源数据包的源标识信息进行传送。 该方法包括最小化传送源标识信息和技术以克服网络损伤所需的网络带宽的技术。 当结合FEC技术，重传技术或FEC技术和重传技术的组合时，本文描述的方法允许接收机恢复丢失的源分组，同时确保原始分组不被修改，从而确保遗留接收机的向后兼容性。

公开(公告)号：US06851083B1

公开(公告)日：2005-02-01

申请号：US09869461

申请日：1999-12-29

申请人： Joachim Hagenauer ,  Thomas Stockhammer ,  Christian Weiss ,  Wolfgang Denk

发明人： Joachim Hagenauer ,  Thomas Stockhammer ,  Christian Weiss ,  Wolfgang Denk

IPC分类号： G06F11/10 ,  H03M7/30 ,  H03M7/40 ,  H03M13/00 ,  H03M13/35 ,  H04B14/04 ,  H04L1/00 ,  H04L1/16 ,  H04L1/24 ,  H04L12/56

CPC分类号： H03M13/6312 ,  H03M13/23 ,  H03M13/356 ,  H03M13/3746 ,  H03M13/3977 ,  H03M13/6375 ,  H04N19/36 ,  H04N19/60 ,  H04N19/67

摘要： A method of transmitting encoded digital signals and decoding the digital signals at a receiver. During source encoding, the signals are divided into a plurality of subunits. Each subunit is assigned one of a plurality of differing levels of significance. The subunits are hierarchically ordered in a data frame according to their levels of significance. The subunits are then channel encoded utilizing a variable rate code. The rate increases for increasing levels of significance. At the receiver decoder, a subset of the subunits are correctly decoded to produce a correct portion of decoded data. The correct portion is defined by a position of a first error in the data frame. The position of the first error in the data frame is dependent upon at least one of the encoding rate, channel quality, and decoding complexity. The digital signals are then reconstructed using only the correct portion of decoded data.

摘要翻译： 一种发射编码数字信号并在接收机解码数字信号的方法。 在源编码期间，信号被分成多个子单元。 每个子单元被分配为多个不同的重要程度中的一个。 子单元根据其重要程度在数据帧中进行分层排序。 然后使用可变速率码对子单元进行信道编码。 增长水平显着增加。 在接收器解码器处，子单元的子集被正确解码以产生解码数据的正确部分。 正确的部分由数据帧中第一个错误的位置定义。 数据帧中第一个错误的位置取决于编码速率，信道质量和解码复杂度中的至少一个。 然后仅使用解码数据的正确部分重建数字信号。

公开(公告)号：US09456015B2

公开(公告)日：2016-09-27

申请号：US13205559

申请日：2011-08-08

申请人： Ying Chen ,  Thomas Stockhammer ,  Mark Watson

发明人： Ying Chen ,  Thomas Stockhammer ,  Mark Watson

IPC分类号： H04L29/06

CPC分类号： H04L65/604 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/607 ,  H04L65/80

摘要： In one example, a device for receiving information for multimedia data, the device comprising one or more processors configured to analyze at least a portion of a manifest file for multimedia content, wherein the portion of the manifest file includes information indicative of sets of representations of the multimedia content and information indicative of common characteristics for each of the sets of representations, select one of the sets of representations based on the common characteristics for the one of the sets of representations, select one of the representations of the selected one of the sets of representations based on one or more coding characteristics of the one of the representations of the one of the sets, and generate a request for data of the one of the representations based on the selection.

摘要翻译： 在一个示例中，用于接收多媒体数据的信息的设备，该设备包括被配置为分析用于多媒体内容的清单文件的至少一部分的一个或多个处理器，其中清单文件的该部分包括指示多个 多媒体内容和指示每个表示集合的共同特征的信息，基于表示集合中的一组的共同特征来选择表示集合中的一个，选择所选择的一个集合的表示中的一个 基于一个集合的一个表示的一个或多个编码特征的表示，并且基于该选择生成对该表示中的一个的数据的请求。

公开(公告)号：US08904020B2

公开(公告)日：2014-12-02

申请号：US12300315

申请日：2007-05-09

申请人： Wissam Abdel Samad ,  Andreas Arnold ,  Hrvoje Jenkac ,  Thomas Stockhammer ,  Wen Xu

发明人： Wissam Abdel Samad ,  Andreas Arnold ,  Hrvoje Jenkac ,  Thomas Stockhammer ,  Wen Xu

IPC分类号： G06F15/16 ,  H04N21/44 ,  H04N21/4402 ,  H04N21/43 ,  H04L29/06

CPC分类号： H04N21/4402 ,  H04L65/4007 ,  H04L65/4084 ,  H04L67/06 ,  H04L67/325 ,  H04L69/14 ,  H04N21/4302 ,  H04N21/44004

摘要： A file (FI) is transmitted via a first channel (CH1). In addition, a second channel (CH2) is used to transmit play parameters (D1, D2, R1, R2) which comprise at least one set (Di, Ri) of information about a play rate (R1, R2) and a delay time (D1, D2) for the file (FI) which is to be transmitted by the first channel (CH1). On the basis of the play parameters (D1, D2, R1, R2), it is possible to determine a time for starting to process the file (FI) which is to be transmitted.

摘要翻译： 通过第一通道（CH1）传送文件（FI）。 另外，第二通道（CH2）用于发送播放参数（D1，D2，R1，R2），其包括关于播放速率（R1，R2）和延迟时间的信息的至少一组（Di，Ri） （D1，D2），用于由第一通道（CH1）发送的文件（FI）。 根据播放参数（D1，D2，R1，R2），可以确定开始处理要发送的文件（FI）的时间。

公开(公告)号：US08379530B2

公开(公告)日：2013-02-19

申请号：US12064238

申请日：2006-08-17

申请人： Sergio Parolari ,  Leonardo Provvedi ,  Thomas Stockhammer

发明人： Sergio Parolari ,  Leonardo Provvedi ,  Thomas Stockhammer

IPC分类号： G01R31/08

CPC分类号： H04L1/0083 ,  H04L1/004

摘要： An application encoder generates independently accessible symbols and these symbols are aggregated by symbol aggregation means into a packet payload. The aggregated symbols in the packet payload are transported in a defined packet structure. These packets are transported over a channel by a packet transmitter that segments the packets into different segments by segmentation means. A segment receiver included in a first entity has the ability to detect whether a certain segment is lost and also knows the length of the lost segment. The segments are aggregated in the first entity to form at least one packet conforming to the packet stream. A symbol parser entity recovers the symbols and passes the individual symbols to an application decoder. The symbol parser in the second entity recovers, from the recovered non-lost information of each received packet, individual symbols.

摘要翻译： 应用编码器生成独立可访问的符号，并且这些符号由符号聚合装置聚合成分组有效载荷。 分组有效载荷中的聚合符号以定义的分组结构传送。 这些分组通过分组传送器在信道上传输，分组发送器通过分段方式将分组分段成不同的分段。 包括在第一实体中的段接收器具有检测某个段是否丢失并且还知道丢失段的长度的能力。 这些段被聚合在第一实体中以形成符合分组流的至少一个分组。 符号解析器实体恢复符号并将各个符号传递给应用解码器。 第二实体中的符号解析器从恢复的每个接收到的分组的非丢失信息中恢复各个符号。