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1. 发明授权

US09762472B2 Method for evaluating an available path bitrate based on an acknowledgement path selection 有权
公开(公告)号：US09762472B2
公开(公告)日：2017-09-12
申请号：US13642344
申请日：2011-04-14
申请人： Guillaume Bichot , Stephane Gouache , Amine Bsila
发明人： Guillaume Bichot , Stephane Gouache , Amine Bsila
IPC分类号： H04L12/26 , H04L29/06 , H04L12/707
CPC分类号： H04L43/50 , H04L45/24 , H04L65/608 , H04L65/80 , H04L69/14
摘要： A method for evaluating an available bitrate over a path among one of at least two paths linking a first endpoint and a second endpoint, the path being called an evaluation path, is disclosed. The first endpoint is configured for sending data packets to the second endpoint, the second endpoint is configured for sending at each data packet reception an acknowledgment message to the first endpoint through one of the at least two path selected at each data packet reception. The method comprises, at the first endpoint, steps of: inserting a flag in a first data packet out of the data packets to be transmitted to the second endpoint through the evaluation path; sending said first data packet through the evaluation path; measuring and recording a sending time of the first data packet from said first endpoint; receiving an acknowledgment message sent by the second endpoint through the evaluation path for acknowledging reception of the first data packet at said second endpoint; measuring and recording an arrival time of said acknowledgment message at said first endpoint; assessing the available bitrate from an interval between the sending time and the arrival time and from the size of said first data packet. A method for sending at a second endpoint an acknowledgement message over a path among one of at least two paths linking a first endpoint and said second endpoint is further disclosed. Associated device for evaluating an available bitrate and device for sending at a second endpoint an acknowledgement message are disclosed.

2. 发明授权

US09258333B2 Method for recovering content streamed into chunk 有权
标题翻译：恢复流入块的内容的方法
公开(公告)号：US09258333B2
公开(公告)日：2016-02-09
申请号：US13635199
申请日：2011-03-31
申请人： Guillaume Bichot , Stephane Gouache
发明人： Guillaume Bichot , Stephane Gouache
IPC分类号： G06F15/16 , H04L29/06 , H04L29/08 , H04N19/30 , H04N19/12 , H04N19/156 , H04N19/164 , H04N19/89
CPC分类号： H04L65/1046 , H04L65/4084 , H04L65/80 , H04L67/2823 , H04N19/12 , H04N19/156 , H04N19/164 , H04N19/30 , H04N19/89
摘要： The present invention concerns an adaptive streaming method, at a client device, for receiving content split into chunks corresponding to a content duration, the chunks being encoded at a server into at least a first and a second formats, the first format corresponding to a better content rendering quality level than the second format, a chunk being received during a chunk reception period. According to the invention, the method comprises the steps of measuring the available bandwidth between the client and the server for the next chunk reception period, requesting the server to send a chunk encoded at a format so that the chunk can be received during the next chunk reception period, and if some bandwidth is available for the next chunk reception period, requesting the server to send a part of a chunk encoded at a second format, the chunk having been received encoded at the first format.
摘要翻译：本发明涉及一种在客户端设备处的自适应流传输方法，用于接收分成对应于内容持续时间的块的内容，所述块在服务器处被编码为至少第一和第二格式，所述第一格式对应于更好的内容呈现质量级别比第二格式，在块接收周期期间接收的块。根据本发明，该方法包括以下步骤：在下一个块接收周期内测量客户端与服务器之间的可用带宽，请求服务器发送以格式编码的块，以便在下一个块期间可以接收该块并且如果一些带宽可用于下一个块接收周期，则请求服务器发送以第二格式编码的块的一部分，已经接收到的以第一格式编码的块。

3. 发明申请

US20120320752A1 CONTROL OF PACKET TRANSFER THROUGH A MULTIPATH SESSION COMPRISING A SINGLE CONGESTION WINDOW 有权
标题翻译：通过包含单个约束窗口的多个会话节目进行分组传输的控制
公开(公告)号：US20120320752A1
公开(公告)日：2012-12-20
申请号：US13579008
申请日：2011-02-17
申请人： Stephane Gouache , Amine Bsila , Guillaume Bichot
发明人： Stephane Gouache , Amine Bsila , Guillaume Bichot
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L45/24 , H04L47/11 , H04L47/125
摘要： A method for controlling a packet transfer through a multipath session is disclosed. The method comprises a number of n paths linking a first endpoint to a second endpoint, n being an integer greater or equal to 2, i being an integer and 1≦i≦n; each path Pi being defined by a couple of addresses of a communication interface of the first and second endpoint; the first endpoint being configured for sending the packet to the second endpoint through anyone of the paths; the second endpoint being configured for sending an acknowledgment message through anyone of the paths when the second endpoint received a packet. According to the invention, the method involves, at the first endpoint and at a time t, steps of: assessing a load distribution L through the path Pi based on evaluations of a round-trip-time RTT over the path Pi for every i between 1 and n; evaluating a current available load distribution R from the data load distribution L , from an aggregated size of packets D currently assigned to be transmitted on the path Pi for every i between 1 and N, and from the aggregated size of packets D currently assigned to be transmitted on any of the paths; selecting a path Pi among the from the current available load distribution R ; sending the packet on the selected path such that the aggregated size of packets D to transmit through the selected path Pi is lower than a congestion window cwnd whose value is evaluated globally by the first endpoint for the multipath session A device for controlling a transfer of a packet through a multipath session implementing the method is further disclosed.
摘要翻译：公开了一种用于控制通过多径会话的分组传送的方法。该方法包括将第一端点链接到第二端点的n个路径，n是大于或等于2的整数，i是整数，1＆nlE; i＆nlE; n; 每个路径Pi由第一和第二端点的通信接口的几个地址定义; 第一端点被配置为通过任何路径将分组发送到第二端点; 第二端点被配置为当第二端点接收到分组时通过任何路径发送确认消息。根据本发明，该方法在第一端点和在时间t包括以下步骤：基于往返时间RTT 的聚合大小，从数据负载分布L i，t>中估计当前可用负载分布R i，t> 和N，并且从当前分配给要在任何路径上发送的分组D 中选择路径Pi; 在所选择的路径上发送分组，使得通过所选择的路径Pi发送的分组D i，t>的聚合大小低于其值由多径会话的第一端点全局评估的拥塞窗口cwnd。进一步公开了通过实现该方法的多路径会话来控制分组的传送。

4. 发明申请

US20120311174A1 MULTIPATH DELIVERY FOR ADAPTIVE STREAMING 审中-公开
标题翻译：多路自适应流量传输
公开(公告)号：US20120311174A1
公开(公告)日：2012-12-06
申请号：US13577954
申请日：2011-02-16
申请人： Guillaume Bichot , Stephane Gouache
发明人： Guillaume Bichot , Stephane Gouache
IPC分类号： G06F15/16
CPC分类号： H04N21/44209 , H04L65/4084 , H04L65/4092 , H04L65/607 , H04L65/80 , H04L69/14 , H04N21/4621 , H04N21/4622 , H04N21/631
摘要： A method for delivering content via adaptive streaming technique over multiple communication paths and a device implementing the method are disclosed.The method for providing a content to be rendered at a client device comprises at least a first past being identified by the address of a first interface and the address of a first server interface, and a second path being identified by the address of a second interface and and the address of a second server interface, the content being available under at least two versions having an encoding quality corresponding to a supported bit rate constraint, each of the at least two versions being temporally split into chunks corresponding to an identical rendered duration of the content, a chunk being identified by a time index i and by one of the supported bit rate.According to the invention the method comprises the steps of: measuring a first available bit rate on the first path and a second available bit rate on the second path; determining a requested bit rate among the supported bit rate from the measured first available bit rate and from the measured second available bit rate; sending a first request via the first path for receiving a first part of the chunk identified by the time index i and by the requested bit rate and a second request via the second path for receiving a second part of said chunk, said of the chunk being complementary; and each of said parts of the chunk having a size being computed from the determined available bit rate; receiving the requested first part via the first path and the requested second part via the second path.
摘要翻译：公开了一种通过自适应流技术在多个通信路径上传送内容的方法和实现该方法的设备。用于提供要在客户端设备呈现的内容的方法包括至少第一过去被第一接口的地址和第一服务器接口的地址标识，以及由第二接口的地址标识的第二路径以及第二服务器接口的地址，所述内容在具有对应于所支持的比特率约束的编码质量的至少两个版本下可用，所述至少两个版本中的每一个在时间上被分割成对应于相同渲染持续时间的块内容，由时间索引i识别的块和所支持的比特率之一。根据本发明，该方法包括以下步骤：测量第一路径上的第一可用比特率和第二路径上的第二可用比特率; 从所测量的第一可用比特率和所测量的第二可用比特率确定所支持比特率中的请求比特率; 经由所述第一路径发送第一请求，用于接收由时间索引i识别的块的第一部分和所请求的比特率，以及经由用于接收所述块的第二部分的第二路径的第二请求，所述块为补充; 并且所述块的每个所述部分具有根据所确定的可用比特率计算的大小; 经由第一路径和所请求的第二部分经由第二路径接收所请求的第一部分。

5. 发明授权

US10034048B2 Multipath delivery for adaptive streaming 有权
公开(公告)号：US10034048B2
公开(公告)日：2018-07-24
申请号：US13577954
申请日：2011-02-16
申请人： Guillaume Bichot , Stephane Gouache
发明人： Guillaume Bichot , Stephane Gouache
IPC分类号： G06F15/16 , H04N21/442 , H04N21/462 , H04N21/63 , H04L29/06
摘要： A method and apparatus for delivering content via adaptive streaming technique over multiple communication paths between a client and a server are described. The method includes measuring a first, and respectively a second, available bit rate on the first, and respectively second, path, determining a requested bit rate from the measured first and second available bit rates, sending a first request via the first path for receiving a first part of the chunk of content identified by the time index i and by the requested bit rate and a second request via the second path for receiving a second part of the chunk of content, the first and second chunks of content being complementary, the size of each of the chunks being computed from the available bit rate and receiving the requested first, and respectively second, part via the first, and respectively second, path.

6. 发明授权

US09660912B2 Control of packet transfer through a multipath session comprising a single congestion window 有权
公开(公告)号：US09660912B2
公开(公告)日：2017-05-23
申请号：US13579008
申请日：2011-02-17
申请人： Stephane Gouache , Amine Bsila , Guillaume Bichot
发明人： Stephane Gouache , Amine Bsila , Guillaume Bichot
IPC分类号： H04L12/841 , H04L12/801 , H04L12/707 , H04L12/803
CPC分类号： H04L47/10 , H04L45/24 , H04L47/11 , H04L47/125
摘要： A method for controlling a packet transfer through a multipath session is disclosed. The method comprises a number of n paths linking a first endpoint to a second endpoint, n being an integer greater or equal to 2, i being an integer and 1≦i≦n; each path Pi being defined by a couple of addresses of a communication interface of the first and second endpoint; the first endpoint being configured for sending the packet to the second endpoint through anyone of the paths; the second endpoint being configured for sending an acknowledgment message through anyone of the paths when the second endpoint received a packet. According to the invention, the method involves, at the first endpoint and at a time t, steps of: assessing a load distribution L through the path Pi based on evaluations of a round-trip-time RTT over the path Pi for every i between 1 and n; evaluating a current available load distribution R from the data load distribution L , from an aggregated size of packets D currently assigned to be transmitted on the path Pi for every i between 1 and N, and from the aggregated size of packets D currently assigned to be transmitted on any of the paths; selecting a path Pi among the from the current available load distribution R ; sending the packet on the selected path such that the aggregated size of packets D to transmit through the selected path Pi is lower than a congestion window cwnd whose value is evaluated globally by the first endpoint for the multipath session. A device for controlling a transfer of a packet through a multipath session implementing the method is further disclosed.

7. 发明申请

US20130201846A1 METHOD FOR EVALUATING AN AVAILABLE PATH BITRATE BASED ON AN ACKNOWLEDGEMENT PATH SELECTION 有权
标题翻译：基于确认路径选择评估可用路径双向的方法
公开(公告)号：US20130201846A1
公开(公告)日：2013-08-08
申请号：US13642344
申请日：2011-04-14
申请人： Guillaume Bichot , Stephane Gouache , Amine Bsila
发明人： Guillaume Bichot , Stephane Gouache , Amine Bsila
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L45/24 , H04L65/608 , H04L65/80 , H04L69/14
摘要： A method for evaluating an available bitrate over a path among one of at least two paths linking a first endpoint and a second endpoint, the path being called an evaluation path, is disclosed. The first endpoint is configured for sending data packets to the second endpoint, the second endpoint is being configured for sending at each data packet reception an acknowledgment message to the first endpoint through one of the at least two path selected at each data packet reception. The method comprises, at the first endpoint, steps of: inserting a flag in a first data packet out of the data packets to be transmitted to the second endpoint through the evaluation path; sending said first data packet through the evaluation path; measuring and recording a sending time of the first data packet from said first endpoint; receiving an acknowledgment message sent by the second endpoint through the evaluation path for acknowledging reception of the first data packet at said second endpoint; measuring and recording an arrival time of said acknowledgment message at said first endpoint; assessing the available bitrate from an interval between the sending time and the arrival time and from the size of said first data packet. A method for sending at a second endpoint an acknowledgement message over a path among one of at least two paths linking a first endpoint and said second endpoint is further disclosed. Associated device for evaluating an available bitrate and device for sending at a second endpoint an acknowledgement message are disclosed.
摘要翻译：公开了一种用于评估在连接第一端点和第二端点的至少两个路径中的至少两个路径中的路径之间的可用比特率的方法，所述路径被称为评估路径。第一端点被配置为将数据分组发送到第二端点，第二端点被配置为通过在每个数据分组接收处选择的至少两条路径之一通过接收到每个数据分组的确认消息来向第一端点发送确认消息。该方法在第一端点包括以下步骤：通过评估路径将要发送到第二端点的数据分组中的第一数据分组中的标志插入; 通过评估路径发送所述第一数据分组; 从所述第一端点测量和记录所述第一数据分组的发送时间; 通过所述评估路径接收由所述第二端点发送的确认消息，用于确认所述第二端点处的所述第一数据分组的接收; 在所述第一端点处测量和记录所述确认消息的到达时间; 从发送时间和到达时间之间的间隔以及从所述第一数据包的大小来评估可用比特率。进一步公开了一种在第二端点处通过连接第一端点和所述第二端点的至少两个路径之一上的路径上的确认消息进行发送的方法。用于评估可用比特率的相关设备和用于在第二端点发送确认消息的设备被公开。

8. 发明申请

US20140208374A1 METHOD AND APPARATUS FOR ADAPTIVE TRANSCODING OF MULTIMEDIA STREAM 审中-公开
标题翻译：多媒体流的自适应扫描的方法和装置
公开(公告)号：US20140208374A1
公开(公告)日：2014-07-24
申请号：US14241446
申请日：2012-08-24
申请人： Christophe Delaunay , Remi Houdaille , Stephane Gouache , Habib Bel Hadj Ali
发明人： Christophe Delaunay , Remi Houdaille , Stephane Gouache , Habib Bel Hadj Ali
IPC分类号： H04N21/442 , H04L29/06 , H04N21/845 , H04N21/2343 , H04N21/6379
CPC分类号： H04L65/60 , H04L65/4076 , H04L65/4084 , H04L65/4092 , H04L65/605 , H04L65/80 , H04N21/23106 , H04N21/2343 , H04N21/234354 , H04N21/234363 , H04N21/234381 , H04N21/23439 , H04N21/44209 , H04N21/6379 , H04N21/6581 , H04N21/845
摘要： A method of streaming an output content stream adaptively transcoded from a corresponding input content stream includes offering, to a client device, a number of alternative versions of the output content stream, for selection by the client device, and dividing the input content stream into two or more segments. Prior to the offering step at least a first segment of the input content stream is transcoded into at least one corresponding segment of an output content stream corresponding to at least one version from the number of alternative versions offered to the client device. Upon receiving a request from the client device for a selected version of the output content stream, streaming is begun with using a first one of the at least one corresponding segments of an output content stream corresponding to at least one version from the number of alternative versions offered to the client device that had been transcoded and stored prior to offering. Transcoding parameters are extracted from the request, for controlling the transcoding of a subsequent segment of the input content stream into the version selected by the client device, and the subsequent segment transcoded into the requested version is streamed to the client.
摘要翻译：流式传输从对应的输入内容流自适应地转码的输出内容流的方法包括向客户端设备提供输出内容流的多个备选版本，供客户端设备选择，并将输入内容流分成两部分或更多细分。在提供步骤之前，输入内容流的至少第一段被转码为与提供给客户端设备的替代版本的数量相对应的至少一个版本的输出内容流的至少一个对应段。在从客户端设备接收到输出内容流的所选版本的请求之后，使用与替代版本的数量相对应的至少一个版本的输出内容流的至少一个对应段中的第一个来开始流式传输提供给在提供之前转码并存储的客户端设备。从请求中提取转码参数，用于控制输入内容流的后续片段的转码为由客户端设备选择的版本，并将转码为所请求的版本的后续片段流传送到客户端。

9. 发明授权

US10333858B2 Method for controlling bandwidth and corresponding device 有权
公开(公告)号：US10333858B2
公开(公告)日：2019-06-25
申请号：US14346719
申请日：2012-08-30
申请人： Stephane Gouache , Remi Houdaille
发明人： Stephane Gouache , Remi Houdaille
IPC分类号： G06F15/173 , H04L12/911 , H04L29/06
摘要： The present invention concerns a device and a method at the device, the device comprising a first interface to a first network comprising an adaptive streaming server, a second interface to a second network comprising at least one adaptive streaming client device, a stream identifier for detecting at least one streaming content requested by the at least one adaptive streaming client device, the at least one streaming content being available at more than one data rate, a bandwidth manager for selecting a data rate among the more than one data rate, a scheduler for transmitting at the second interface the at least one streaming content to the at least one client device at a data rate above said selected data rate but below any higher data rate available for said streaming content.

10. 发明授权

US10015225B2 Method for dynamic adaptation of the reception bitrate and associated receiver 有权
公开(公告)号：US10015225B2
公开(公告)日：2018-07-03
申请号：US14117973
申请日：2012-05-04
申请人： Stephane Gouache , Yvon Legallais , Philippe Gilberton
发明人： Stephane Gouache , Yvon Legallais , Philippe Gilberton
IPC分类号： H04N21/236 , H04L29/06 , H04L12/24 , H04L12/725 , H04L12/927 , H04N21/2343 , H04N21/442 , H04N21/472 , H04N21/6373 , H04N21/6379
CPC分类号： H04L65/608 , H04L41/5019 , H04L41/5051 , H04L45/3065 , H04L47/801 , H04L65/4084 , H04L65/4092 , H04L65/607 , H04L65/80 , H04N21/23439 , H04N21/44209 , H04N21/47202 , H04N21/6373 , H04N21/6379
摘要： The invention discloses a method for reception of an audio-visual program transmitted via portions over a network, the method using a real-time transport protocol and a real-time control protocol between a server and a receiver, the audio-visual program being available on the server in a plurality of versions corresponding to the program coded in different resolutions and enabling its transmission at different bitrates according to requests of the receiver. The method comprising a regular measurement of the bandwidth of the network by the receiver in order to adjust the transmission bitrate according to the state of the network.

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