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41. 发明申请

WO2007095550A3 STREAMING AND BUFFERING USING VARIABLE FEC OVERHEAD AND PROTECTION PERIODS 审中-公开
标题翻译：使用可变的FEC OVERHEAD和保护期的流水和缓冲
公开(公告)号：WO2007095550A3
公开(公告)日：2008-01-10
申请号：PCT/US2007062086
申请日：2007-02-13
申请人： DIGITAL FOUNTAIN INC , WATSON MARK , LUBY MICHAEL G
发明人： WATSON MARK , LUBY MICHAEL G
IPC分类号： H03M13/00
CPC分类号： H04L1/1607 , H03M13/3761 , H04L1/0009 , H04L1/0041 , H04L1/0083
摘要： Data is streamed from a transmitter to a receiver, wherein streaming is transferring data with an assumption that the receiver will begin using the data before it is all transmitted and received and the streamed data includes forward error correction ("FEC") and the rates of data consumption can vary. The transmitter has an input rate and a transmit rate and the two rates can be different and can change. At the receiver, there is a reception rate (at which the receiver receives data) and a consumption rate (at which the receiver uses up data for its output). The transmitter transmits using a transmit rate higher than the consumption rate and the extra bandwidth is usable for FEC protection and buffering. In some embodiments, the excess rate varies over a transmission period.
摘要翻译：数据从发射机流传输到接收机，其中流传输数据的假设是接收机将在全部发送和接收数据之前开始使用数据，流传输的数据包括前向纠错（“FEC”）和数据消耗可能会有所不同。发射机具有输入速率和传输速率，两种速率可以不同，可以改变。在接收机处，存在接收速率（接收器接收数据的接收速率）和消耗速率（接收机用于其输出的数据）。发射机使用高于消耗速率的传输速率进行传输，并且额外的带宽可用于FEC保护和缓冲。在一些实施例中，超出速率在传输周期内变化。

42. 发明申请

WO2005036361A2 FEC-BASED RELIABILITY CONTROL PROTOCOLS 审中-公开
标题翻译：基于FEC的可靠性控制协议
公开(公告)号：WO2005036361A2
公开(公告)日：2005-04-21
申请号：PCT/US2004033307
申请日：2004-10-08
申请人： DIGITAL FOUNTAIN INC , LUBY MICHAEL , DOUCLEFF MATT , WIGDERSON AVI , LASSEN SOREN
发明人： LUBY MICHAEL , DOUCLEFF MATT , WIGDERSON AVI , LASSEN SOREN
IPC分类号： G06F20060101 , H04L12/28 , H04L29/06 , G06F
CPC分类号： H04L1/1819 , H03M13/3761 , H03M13/6547 , H04L1/1887 , H04L69/16 , H04L69/163
摘要： In a transport system, data is reliably transported from a sender to a receiver by organizing the data to be transported into data blocks, wherein each data block comprises a plurality of encoding units, transmitting encoding units of a first data block from the sender to the receiver, and detecting, at the sender, acknowledgments of receipt of encoding units by the receiver. At the sender, a probability that the receiver received sufficient encoding units of the first data block to recover the first data block at the receiver is detected and the probability is tested against a threshold probability to determine whether a predetermined test is met. Following the step of testing and prior to the sender receiving confirmation of recovery of the first data block at the receiver, when the predetermined test is met, transmitting encoding units of a second data block from the sender. If an indication of failure to recover the first data block is received at the sender, sending further encoding units for the first data block from the sender to the receiver. In some embodiments, the predetermined test is a comparison of the probability against the threshold probability and the predetermined test is met when the probability is greater than the threshold probability.
摘要翻译：在传送系统中，通过将要传送的数据组织成数据块，数据可靠地从发送方传送到接收方，其中每个数据块包括多个编码单元，将第一数据块的编码单元从发送器发送到并且在发送器处检测由接收器接收编码单元的确认。在发送器处，检测到接收器接收到第一数据块的足够的编码单元以恢复接收器处的第一数据块的概率，并且针对阈值概率测试概率以确定是否满足预定的测试。在测试步骤之后，并且在发送方接收到在接收机处恢复第一数据块的确认之前，当满足预定测试时，从发送方发送第二数据块的编码单元。如果在发送方收到恢复第一数据块的指示，则从发送方向接收方发送第一数据块的另外的编码单元。在一些实施例中，预定测试是当概率大于阈值概率时，对阈值概率的概率和满足预定测试的概率的比较。

43. 发明申请

WO2004034589A2 SYSTEMATIC ENCODING AND DECODING OF CHAIN REACTION CODES 审中-公开
标题翻译：链反应代码的系统编码和解码
公开(公告)号：WO2004034589A2
公开(公告)日：2004-04-22
申请号：PCT/US0331108
申请日：2003-10-01
申请人： DIGITAL FOUNTAIN INC , SHOKROLLAHI M AMIN , LUBY MICHAEL G
发明人： SHOKROLLAHI M AMIN , LUBY MICHAEL G
IPC分类号： H03M13/11 , H04L1/00 , H03M13/00
CPC分类号： H03M13/1102 , H03M7/30 , H03M13/3761 , H04L1/00
摘要： A method of encoding data into a chain reaction code includes generating a set of input symbols from input data. Subsequently, one or more non-systematic output symbols is generated from the set of input symbols, each of the one or more nonsystematic output symbols being selected from an alphabet of non-systematic output symbols, and each non-systematic output symbol generated as a function of one or more of the input symbols. As a result of this encoding process, any subset of the set of input symbols is recoverable from (i) a predetermined number of non-systematic output symbols, or (ii) a combination of (a) input symbols which are not included in the subset of input symbols that are to be recovered, and (b) one or more of the non-systematic output symbols.
摘要翻译：将数据编码为链式反应代码的方法包括从输入数据生成一组输入符号。随后，从该组输入符号生成一个或多个非系统输出符号，一个或多个非系统输出符号中的每一个从非系统输出符号的字母表中选择，并且每个非系统输出符号被生成为一个或多个输入符号的功能。作为该编码处理的结果，可从（i）预定数量的非系统输出符号中恢复该组输入符号的任何子集，或（ii）不包括在该系统输出符号中的（a）输入符号的组合要恢复的输入符号的子集，以及（b）一个或多个非系统输出符号。

44. 发明申请

WO2003071440A1 SYSTEM AND METHOD FOR RELIABLY COMMUNICATING THE CONTENT OF A LIVE DATA STREAM 审中-公开
标题翻译：用于可靠地传播实时数据流的内容的系统和方法
公开(公告)号：WO2003071440A1
公开(公告)日：2003-08-28
申请号：PCT/US2003/004463
申请日：2003-02-14
申请人： DIGITAL FOUNTAIN, INC. , RASMUSSEN, Jens , LASSEN, Soren , LUBY, Michael , HORN, Gavin , SHOKROLLAHI, Amin , GOYAL, Vivek , DOBYNS, Barry
发明人： RASMUSSEN, Jens , LASSEN, Soren , LUBY, Michael , HORN, Gavin , SHOKROLLAHI, Amin , GOYAL, Vivek , DOBYNS, Barry
IPC分类号： G06F15/16
CPC分类号： H04N21/4382 , H04L1/004 , H04L1/0041 , H04L1/0083 , H04L2001/0093 , H04L2001/0096 , H04N21/234327 , H04N21/2383 , H04N21/2385 , H04N21/2389 , H04N21/2662 , H04N21/4385 , H04N21/631 , H04N21/64792 , H04N21/8456
摘要： A method and system for communicating the content of a live data stream to a receiver using a plurality of channels comprising two encoder channels used to encode the live data content prior to transmission. Initially a plurality of data segments (108) of a live data stream are received. A forward error correction algorithm is applied to each segment's data, thereby producing FEC-encoded segment data and generating a plurality of FEC-encoded block. Each FEC-encoded blocks is copied to a sub-channel (706a, 706b) on both first and second encoder channels. The first and second encoder channels differ in the number of sub-channels they contain (interleaving depth), and accordingly the arrangement of the FEC-encoded blocks in the first and second encoder channels are different. A first cross-section of the FEC-encoded segment data contained within the FEC-encoded blocks resident in the first encoder channel is added to a first transmit block T0. Similarly, a first cross-section of the FEC-encoded segment data contained within the FEC-encoded blocks resident in the second encoder channel is added to a second transmit block T1. The first and second transmit blocks are then communicated to the receiver.
摘要翻译：一种用于使用包括用于在传输之前对实时数据内容进行编码的两个编码器通道的多个信道将实时数据流的内容传送到接收机的方法和系统。最初接收实时数据流的多个数据段（108）。向每个段的数据应用前向纠错算法，从而产生FEC编码的段数据并生成多个FEC编码块。每个FEC编码的块被复制到第一和第二编码器信道上的子信道（706a，706b）。第一和第二编码器通道在它们包含的子通道数量（交错深度）上不同，因此第一和第二编码器通道中的FEC编码块的排列是不同的。包含在驻留在第一编码器信道中的FEC编码块中的FEC编码段数据的第一横截面被添加到第一发送块T0。类似地，包含在驻留在第二编码器信道中的FEC编码块中的FEC编码段数据的第一横截面被添加到第二发射块T1。然后将第一和第二发送块传送到接收器。

45. 发明申请

WO2009137705A3 FAST CHANNEL ZAPPING AND HIGH QUALITY STREAMING PROTECTION OVER A BROADCAST CHANNEL 审中-公开
标题翻译：广播频道快速通道和高品质流水线保护
公开(公告)号：WO2009137705A3
公开(公告)日：2010-02-11
申请号：PCT/US2009043184
申请日：2009-05-07
申请人： DIGITAL FOUNTAIN INC , LUBY MICHAEL G , STOCKHAMMER THOMAS , SHOKROLLAHI AMIN
发明人： LUBY MICHAEL G , STOCKHAMMER THOMAS , SHOKROLLAHI AMIN
IPC分类号： H04N7/015 , H04N19/89
CPC分类号： H04N21/2381 , H04N21/2383 , H04N21/4382 , H04N21/4384
摘要： Signaling the sending of source blocks within multiple physical layer blocks is done for both streaming and object delivery applications, using minimal additional overhead, and in some cases no overhead, to signal interleaved source blocks within a physical layer block, signaling how symbols are related to the source blocks from which they are generated, and signaled sending and indications of prioritized data for source blocks. Organizing and sending streams over one more channels can be done to improve the quality of delivered streams, while minimizing or improving the needed amount of channel resources and receiver power resources needed.
摘要翻译：在多个物理层块中发送源块的信号是通过使用最少的额外开销，并且在某些情况下没有开销用于在物理层块内信号交织的源块来实现流传输和对象递送应用的信令，表示符号如何与生成它们的源块，并用信号发送和指示源块的优先数据。可以通过多个渠道组织和发送流，以提高传输流的质量，同时最小化或改善所需的信道资源和接收机功率资源的数量。

46. 发明申请

WO2009137705A2 FAST CHANNEL ZAPPING AND HIGH QUALITY STREAMING PROTECTION OVER A BROADCAST CHANNEL 审中-公开
标题翻译：广播频道快速通道切割和高品质流水线保护
公开(公告)号：WO2009137705A2
公开(公告)日：2009-11-12
申请号：PCT/US2009/043184
申请日：2009-05-07
申请人： DIGITAL FOUNTAIN, INC. , LUBY, Michael, G. , STOCKHAMMER, Thomas , SHOKROLLAHI, Amin
发明人： LUBY, Michael, G. , STOCKHAMMER, Thomas , SHOKROLLAHI, Amin
IPC分类号： H04N7/015 , H04N7/64
CPC分类号： H04N21/2381 , H04N21/2383 , H04N21/4382 , H04N21/4384
摘要： Signaling the sending of source blocks within multiple physical layer blocks is done for both streaming and object delivery applications, using minimal additional overhead, and in some cases no overhead, to signal interleaved source blocks within a physical layer block, signaling how symbols are related to the source blocks from which they are generated, and signaled sending and indications of prioritized data for source blocks. Organizing and sending streams over one more channels can be done to improve the quality of delivered streams, while minimizing or improving the needed amount of channel resources and receiver power resources needed.
摘要翻译：在多个物理层块中发送源块的发送是为流媒体和对象传递应用程序进行的，使用最少的额外开销，并且在某些情况下，没有开销用于对物理层块内的交织源块进行信号，表明符号如何与生成它们的源块，并发出信号发送和指示源块的优先数据。可以通过多个渠道组织和发送流，以提高传输流的质量，同时最小化或改善所需的信道资源和接收机功率资源的数量。

47. 发明申请

WO2008130936A1 APPARATUS AND METHOD FOR LOW BANDWIDTH PLAY POSITION PREVIEWING OF VIDEO CONTENT 审中-公开
标题翻译：用于低带宽播放位置的装置和方法预览视频内容
公开(公告)号：WO2008130936A1
公开(公告)日：2008-10-30
申请号：PCT/US2008/060363
申请日：2008-04-15
申请人： DIGITAL FOUNTAIN, INC. , OPPENHEIMER, Charles
发明人： OPPENHEIMER, Charles
IPC分类号： G06F3/033 , G09G5/08
CPC分类号： G06F3/0485 , G06F3/0484 , G06F3/04847 , G06F17/30852 , G11B27/326 , G11B27/34 , H04N21/21 , H04N21/23 , H04N21/234327 , H04N21/2387 , H04N21/47202 , H04N21/4728 , H04N21/6587 , H04N21/8153
摘要： A computer readable storage medium includes executable instructions to display video content. A cursor associated with the relative position of the video content is provided. A new cursor position associated with a request for a new relative position of the video content is received. A thumbnail image of the video content corresponding to the new relative position is displayed. The thumbnail image is then transitioned to a full display image.
摘要翻译：计算机可读存储介质包括用于显示视频内容的可执行指令。提供与视频内容的相对位置相关联的光标。接收与视频内容的新的相对位置的请求相关联的新的光标位置。显示与新的相对位置对应的视频内容的缩略图。然后将缩略图图像转换为完整的显示图像。

48. 发明申请

WO2007134196A3 CODE GENERATOR AND DECODER USING HYBRID CODES 审中-公开
标题翻译：使用混合编码的代码生成器和解码器
公开(公告)号：WO2007134196A3
公开(公告)日：2008-03-06
申请号：PCT/US2007068713
申请日：2007-05-10
申请人： DIGITAL FOUNTAIN INC , WATSON MARK , LUBY MICHAEL G
发明人： WATSON MARK , LUBY MICHAEL G
IPC分类号： H03M13/09
CPC分类号： H03M13/03 , H04L1/0052 , H04L1/0064
摘要： A method of encoding data for transmissions from a source to a destination over a communications channel is provided. The method operates on an ordered set of source symbols and may generate zero or more redundant symbols from the source symbols, wherein data is encoded in a first step according to a simple FEC code and in a second step, data is encoded according to a second FEC code, more complex than the first FEC code. The first FEC code and/or the second FEC code might comprise coding known in the art. These steps result in two groups of encoded data in such a way that a low complexity receiver may make use of one of the groups of encoded data while higher complexity receivers may make use of both groups of encoded data.
摘要翻译：提供了一种通过通信信道对从源到目的地的传输的数据进行编码的方法。该方法对有序的一组源符号进行操作，并且可以从源符号生成零个或多个冗余符号，其中根据简单FEC码在第一步骤中对数据进行编码，并且在第二步骤中，根据第二步对数据进行编码 FEC码，比第一个FEC码更复杂。第一FEC码和/或第二FEC码可以包括本领域已知的编码。这些步骤产生两组编码数据，使得低复杂度的接收机可以利用编码数据组之一，而较高复杂度的接收机可以利用两组编码数据。

49. 发明申请

WO2007095551A3 FEC STREAMING WITH AGGREGATION OF CONCURRENT STREAMS FOR FEC COMPUTATION 审中-公开
公开(公告)号：WO2007095551A3
公开(公告)日：2007-08-23
申请号：PCT/US2007/062087
申请日：2007-02-13
申请人： DIGITAL FOUNTAIN, INC. , WATSON, Mark , LUBY, Michael, G.
发明人： WATSON, Mark , LUBY, Michael, G.
IPC分类号： H04L27/00
摘要： Transmitters and receivers deal with streams of data, wherein the receiver is expected to begin using received data before receiving all of the data. Concurrent streams are sent and FEC coding is used with the streams and done as an aggregate. The transmitter performs FEC operations over the plurality of streams, wherein source blocks from at least two streams logically associated into a jumbo source block and FEC processing is performed to generate one or more jumbo repair block from the jumbo source block. Each of the source blocks comprises one or more source symbols from their respective stream. The jumbo source symbols can be of constant size and are suitably aligned along size boundaries that make processing efficient. Each source symbol need not be the same size, and the number of source symbols from each stream in a jumbo source block need not be the same value across streams.

50. 发明申请

WO2007095551A2 FEC STREAMING WITH AGGREGATION OF CONCURRENT STREAMS FOR FEC COMPUTATION 审中-公开
标题翻译： FEC流混合用于FEC计算的并流
公开(公告)号：WO2007095551A2
公开(公告)日：2007-08-23
申请号：PCT/US2007062087
申请日：2007-02-13
申请人： DIGITAL FOUNTAIN INC , WATSON MARK , LUBY MICHAEL G
发明人： WATSON MARK , LUBY MICHAEL G
CPC分类号： H04L1/0041 , H03M13/373 , H03M13/3761 , H04B1/66 , H04L1/0057 , H04L1/0078 , H04N19/89
摘要： Transmitters and receivers deal with streams of data, wherein the receiver is expected to begin using received data before receiving all of the data. Concurrent streams are sent and FEC coding is used with the streams and done as an aggregate. The transmitter performs FEC operations over the plurality of streams, wherein source blocks from at least two streams logically associated into a jumbo source block and FEC processing is performed to generate one or more jumbo repair block from the jumbo source block. Each of the source blocks comprises one or more source symbols from their respective stream. The jumbo source symbols can be of constant size and are suitably aligned along size boundaries that make processing efficient. Each source symbol need not be the same size, and the number of source symbols from each stream in a jumbo source block need not be the same value across streams.
摘要翻译：发射机和接收机处理数据流，其中接收机预期在接收所有数据之前开始使用接收的数据。并发流被发送，FEC编码与流一起使用，并作为聚合完成。发射机对多个流执行FEC操作，其中执行逻辑上关联到巨型源块和FEC处理中的至少两个流的源块，以从巨型源块生成一个或多个巨型维修块。每个源块包括来自它们各自的流的一个或多个源符号。巨型源符号可以具有恒定的大小，并且可以沿着使处理有效的大小边界适当地对齐。每个源符号不需要相同的大小，并且来自巨型源块中的每个流的源符号的数量不必在每个流之间具有相同的值。

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