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1. 发明授权

US09210302B1 System, method and apparatus for multipoint video transmission 有权
标题翻译：用于多点视频传输的系统，方法和装置
公开(公告)号：US09210302B1
公开(公告)日：2015-12-08
申请号：US13206791
申请日：2011-08-10
申请人： Stefan Holmer , Henrik Fahlberg Lundin , Patrik Westin
发明人： Stefan Holmer , Henrik Fahlberg Lundin , Patrik Westin
IPC分类号： H04N7/50 , H04N5/14 , H04N19/10 , H04N19/102 , H04N19/103 , H04N19/30 , H04N19/37 , H04N19/63
CPC分类号： H04N5/147 , H04N19/10 , H04N19/102 , H04N19/103 , H04N19/115 , H04N19/12 , H04N19/124 , H04N19/146 , H04N19/154 , H04N19/187 , H04N19/30 , H04N19/37 , H04N19/63
摘要： Disclosed herein is a method of transmitting a video bitstream to a first and at least a second endpoint with varying bandwidth capacities including identifying bandwidth capacities of the first and second endpoints, the second endpoint having less bandwidth capacity than the first endpoint, encoding at least a portion of the video bitstream to generate at least one version of a first data partition and a plurality of versions of at least a second data partition, the plurality of versions of the second data partition including at least one high quality version and at least one low quality version of the second data partition, transmitting the at least one version of the first partition and the at least one high quality version of the second partition to the first endpoint and transmitting the at least one low quality version of the second partition to the second endpoint.
摘要翻译：本文公开了一种将视频比特流发送到具有变化带宽容量的第一和至少第二端点的方法，包括识别第一和第二端点的带宽容量，第二端点具有比第一端点更小的带宽容量，至少编码视频比特流的一部分以产生至少一个版本的第一数据分区和至少第二数据分区的多个版本，所述第二数据分区的多个版本包括至少一个高质量版本和至少一个低将所述第二数据分区的质量版本传送到所述第一分区的所述第一分区的所述至少一个版本和所述至少一个高质量版本，并将所述第二分区的所述至少一个低质量版本发送到所述第二分区端点。

2. 发明授权

US09106787B1 Apparatus and method for media transmission bandwidth control using bandwidth estimation 有权
标题翻译：使用带宽估计的媒体传输带宽控制的装置和方法
公开(公告)号：US09106787B1
公开(公告)日：2015-08-11
申请号：US13103181
申请日：2011-05-09
申请人： Stefan Holmer , Henrik Fahlberg Lundin
发明人： Stefan Holmer , Henrik Fahlberg Lundin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04L12/26 , H04N19/172 , H04N19/61 , H04N19/115 , H04N21/2662 , H04N19/70 , H04N19/80 , H04L12/801 , H04L12/807 , H04L12/853 , H04L12/861 , H04L1/00 , H04L29/06
CPC分类号： H04N7/12 , H04L1/005 , H04L43/087 , H04L43/0888 , H04L43/106 , H04L47/10 , H04L47/2416 , H04L47/25 , H04L47/27 , H04L47/28 , H04L49/90 , H04L69/16 , H04N19/115 , H04N19/172 , H04N19/61 , H04N19/70 , H04N19/80 , H04N21/2662
摘要： A system, apparatus, and method for estimating available bandwidth for transmitting a media stream over a network, the media stream having a plurality of frames. One method includes receiving some of the plurality of frames, each frame of the plurality of frames having a inter-frame size differential and an inter-arrival time differential, detecting whether at least some of the inter-arrival time differentials are outside of a steady-state range using at least some of the inter-frame size differentials, and estimating an available bandwidth based on the detected change and using a processor.
摘要翻译：一种用于估计可用带宽以用于通过网络发送媒体流的系统，装置和方法，所述媒体流具有多个帧。一种方法包括：接收多个帧中的一些帧，多个帧中的每一帧具有帧间尺寸差分和到达之间时间差，检测到达到达间时间差中的至少一些是否在稳定之外 - 使用至少一些帧间尺寸差异的状态范围，以及基于检测到的改变来估计可用带宽并使用处理器。

3. 发明授权

US08665745B2 Method and device for determining a jitter buffer level 有权
标题翻译：用于确定抖动缓冲器电平的方法和设备
公开(公告)号：US08665745B2
公开(公告)日：2014-03-04
申请号：US13497625
申请日：2010-09-20
申请人： Henrik Fahlberg Lundin , Stefan Holmer
发明人： Henrik Fahlberg Lundin , Stefan Holmer
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L43/087 , H04L43/0852 , H04L43/106 , H04L49/90 , H04L49/9005
摘要： It is disclosed a method for determining a buffer level of a jitter data buffer (203) comprised in a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets. Each frame may comprise timestamp information and payload size information. The buffer level is determined on the basis of a first part of frame arrival delay related to payload size variation between frames and a second part related to the amount of crosstraffic in the communications network (202). It is further disclosed a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets, the receiver (200) comprising a data jitter buffer (203) and being adapted to perform the method.
摘要翻译：公开了一种用于确定包括在接收器（200）中的抖动数据缓冲器（203）的缓冲器电平的方法，该接收机适于顺序地从通信网络（202）接收数据分组，其中帧被编码到数据分组中。每个帧可以包括时间戳信息和有效载荷大小信息。基于与帧之间的有效负载大小变化相关的帧到达延迟的第一部分和与通信网络（202）中的交叉量相关的第二部分，确定缓冲器电平。还公开了一种适于从通信网络（202）顺序地接收数据分组的接收机（200），其中帧被编码为数据分组，所述接收机（200）包括数据抖动缓冲器（203）并且适于执行方法。

4. 发明申请

US20120281572A1 Method And Device For Determining A Jitter Buffer Level 有权
标题翻译：用于确定抖动缓冲区级别的方法和设备
公开(公告)号：US20120281572A1
公开(公告)日：2012-11-08
申请号：US13497625
申请日：2010-09-20
申请人： Henrik Fahlberg Lundin , Stefan Holmer
发明人： Henrik Fahlberg Lundin , Stefan Holmer
IPC分类号： H04L12/26
CPC分类号： H04L43/087 , H04L43/0852 , H04L43/106 , H04L49/90 , H04L49/9005
摘要： It is disclosed a method for determining a buffer level of a jitter data buffer (203) comprised in a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets. Each frame may comprise timestamp information and payload size information. The buffer level is determined on the basis of a first part of frame arrival delay related to payload size variation between frames and a second part related to the amount of crosstraffic in the communications network (202). It is further disclosed a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets, the receiver (200) comprising a data jitter buffer (203) and being adapted to perform the method.
摘要翻译：公开了一种用于确定包括在接收器（200）中的抖动数据缓冲器（203）的缓冲器电平的方法，该接收机适于顺序地从通信网络（202）接收数据分组，其中帧被编码到数据分组中。每个帧可以包括时间戳信息和有效载荷大小信息。基于与帧之间的有效负载大小变化相关的帧到达延迟的第一部分和与通信网络（202）中的交叉量相关的第二部分，确定缓冲器电平。还公开了一种适于从通信网络（202）顺序地接收数据分组的接收机（200），其中帧被编码为数据分组，所述接收机（200）包括数据抖动缓冲器（203）并且适于执行方法。

5. 发明授权

US08780984B2 Loss-robust video transmission using plural decoders 有权
标题翻译：使用多个解码器的丢失鲁棒的视频传输
公开(公告)号：US08780984B2
公开(公告)日：2014-07-15
申请号：US13174862
申请日：2011-07-01
申请人： Henrik Fahlberg Lundin
发明人： Henrik Fahlberg Lundin
IPC分类号： H04N7/26 , H04N7/68
CPC分类号： H04N19/895
摘要： Disclosed herein is a method of decoding a sequence of prediction-coded video frames using a primary and a secondary state-dependent decoder. The method includes receiving an incomplete frame at the primary decoder, copying a state of the primary decoder into the secondary decoder, decoding and outputting the incomplete frame and subsequent frames at the primary decoder, receiving data restoring the incomplete frame, decoding the restored incomplete frame and subsequent frames at the secondary decoder until the secondary decoder has caught up with the primary decoder; and copying the state of the secondary decoder into the primary decoder; wherein the secondary decoder has access to the subsequent frames received after the incomplete frame.
摘要翻译：本文公开了一种使用主要和次要状态相关解码器对预测编码的视频帧序列进行解码的方法。该方法包括在主解码器处接收不完整的帧，将主解码器的状态复制到辅助解码器中，在主解码器处解码并输出不完整帧和后续帧，接收恢复不完整帧的数据，解码恢复的不完整帧以及次级解码器的后续帧，直到辅助解码器已经赶上主解码器; 以及将所述辅助解码器的状态复制到所述主解码器中; 其中所述辅助解码器具有访问在所述不完整帧之后接收的后续帧。

6. 发明申请

US20120008681A1 LOSS-ROBUST VIDEO TRANSMISSION USING TWO DECODERS 有权
标题翻译：使用两个解码器的损失可靠的视频传输
公开(公告)号：US20120008681A1
公开(公告)日：2012-01-12
申请号：US13174862
申请日：2011-07-01
申请人： Henrik Fahlberg Lundin
发明人： Henrik Fahlberg Lundin
IPC分类号： H04N7/26
CPC分类号： H04N19/895
摘要： Disclosed herein is a method of decoding a sequence of prediction-coded video frames using a primary and a secondary state-dependent decoder. The method includes receiving an incomplete frame at the primary decoder, copying a state of the primary decoder into the secondary decoder, decoding and outputting the incomplete frame and subsequent frames at the primary decoder, receiving data restoring the incomplete frame, decoding the restored incomplete frame and subsequent frames at the secondary decoder until the secondary decoder has caught up with the primary decoder; and copying the state of the secondary decoder into the primary decoder; wherein the secondary decoder has access to the subsequent frames received after the incomplete frame.
摘要翻译：本文公开了一种使用主要和次要状态相关解码器对预测编码的视频帧序列进行解码的方法。该方法包括在主解码器处接收不完整的帧，将主解码器的状态复制到辅解码器中，在主解码器解码并输出不完整帧和后续帧，接收恢复不完整帧的数据，解码恢复的不完整帧以及次级解码器的后续帧，直到辅助解码器已经赶上主解码器; 以及将所述辅助解码器的状态复制到所述主解码器中; 其中所述辅助解码器具有访问在所述不完整帧之后接收的后续帧。

7. 发明授权

US07733893B2 Method and receiver for determining a jitter buffer level 有权
标题翻译：用于确定抖动缓冲器电平的方法和接收器
公开(公告)号：US07733893B2
公开(公告)日：2010-06-08
申请号：US11822025
申请日：2007-06-29
申请人： Henrik Fahlberg Lundin
发明人： Henrik Fahlberg Lundin
IPC分类号： H04L12/28
CPC分类号： H04L12/64 , H04J3/0632 , H04L12/6418 , H04L65/80
摘要： The invention relates to a method and a receiver having control logic means for determining a target packet level of a jitter buffer adapted to receive packets with digitized signal samples, which packets are subject to delay jitter, from a packet data network. According to the invention, the jitter buffer is made adaptive to current network conditions, i.e., the nature and magnitude of the jitter observed by the receiver, by collecting statistical measures that describe these conditions. The target buffer level is determined with regard to the effect of packet losses in terms of duration of the discontinued playback of the true signal. This effect is derived from statistical measures of the network conditions as perceived by the receiving side and as reflected by a probability mass function which is continuously updated with packet inter-arrival times. The target buffer level is the result of minimization of a cost function which weights the internal buffer delay and an expected length of buffer underflow.
摘要翻译：本发明涉及一种具有控制逻辑装置的控制逻辑装置，该方法和接收机具有用于确定抖动缓冲器的目标分组级别，该抖动缓冲器适用于从分组数据网络接收具有数字化信号样本（哪个分组遭受延迟抖动）的分组。根据本发明，通过收集描述这些条件的统计测量，使抖动缓冲器适应于当前网络条件，即接收机观察到的抖动的性质和幅度。关于分组丢失对真实信号的停止重放的持续时间的影响来确定目标缓冲器电平。这种效应来源于接收侧所感知的网络条件的统计测量，并且由具有分组到达时间的连续更新的概率质量函数反映出来。目标缓冲器电平是对内部缓冲器延迟和缓冲器下溢的预期长度进行加权的成本函数最小化的结果。

8. 发明授权

US08687654B1 Method to packetize an encoded video frame 有权
标题翻译：打包编码视频帧的方法
公开(公告)号：US08687654B1
公开(公告)日：2014-04-01
申请号：US13344173
申请日：2012-01-05
申请人： Henrik Fahlberg Lundin
发明人： Henrik Fahlberg Lundin
IPC分类号： H04J3/24
CPC分类号： H04N21/845 , H04N21/23605
摘要： A system, method and apparatus for transmitting a packetized video stream over a network comprising receiving a frame of a video stream having a plurality of partitions of varying sizes, the plurality of partitions having an ordered sequence, identifying one or more of the plurality of partitions having a size that is less than a predetermined maximum, and allocating the identified one or more of the plurality of partitions into a plurality of packets in a manner that: (a) results in each packet having a size that is less than the predetermined maximum; (b) minimizes a cost value that is based at least in part on the difference between the size of the smallest packet and the size of the largest packet; and (c) maintains the allocated partitions in the ordered sequence. After allocation, the packets are transmitted over the network.
摘要翻译：一种用于通过网络发送分组化视频流的系统，方法和装置，包括接收具有不同大小的多个分区的视频流的帧，所述多个分区具有有序序列，识别所述多个分区中的一个或多个具有小于预定最大值的大小，并且以下列方式将所识别的多个分区中的一个或多个划分成多个分组：（a）导致每个分组具有小于预定最大值的大小 ; （b）最小化至少部分地基于最小分组的大小与最大分组的大小之间的差异的成本值; 和（c）以有序的顺序维护所分配的分区。分配后，数据包通过网络传输。

9. 发明申请

US20090003369A1 Method and receiver for determining a jitter buffer level 有权
标题翻译：用于确定抖动缓冲器电平的方法和接收器
公开(公告)号：US20090003369A1
公开(公告)日：2009-01-01
申请号：US11822025
申请日：2007-06-29
申请人： Henrik Fahlberg Lundin
发明人： Henrik Fahlberg Lundin
IPC分类号： H04L12/56
CPC分类号： H04L12/64 , H04J3/0632 , H04L12/6418 , H04L65/80
摘要： The invention relates to a method and a receiver having control logic means for determining a target packet level of a jitter buffer adapted to receive packets with digitized signal samples, which packets are subject to delay jitter, from a packet data network. According to the invention, the jitter buffer is made adaptive to current network conditions, i.e., the nature and magnitude of the jitter observed by the receiver, by collecting statistical measures that describe these conditions. The target buffer level is determined with regard to the effect of packet losses in terms of duration of the discontinued playback of the true signal. This effect is derived from statistical measures of the network conditions as perceived by the receiving side and as reflected by a probability mass function which is continuously updated with packet inter-arrival times. The target buffer level is the result of minimization of a cost function which weights the internal buffer delay and an expected length of buffer underflow.
摘要翻译：本发明涉及一种具有控制逻辑装置的控制逻辑装置，该方法和接收机具有用于确定抖动缓冲器的目标分组级别，该抖动缓冲器适用于从分组数据网络接收具有数字化信号样本（哪个分组遭受延迟抖动）的分组。根据本发明，通过收集描述这些条件的统计测量，使抖动缓冲器适应于当前网络条件，即接收机观察到的抖动的性质和幅度。关于分组丢失对真实信号的停止重放的持续时间的影响来确定目标缓冲器电平。这种效应来源于接收侧所感知的网络条件的统计测量，并且由具有分组到达时间的连续更新的概率质量函数反映出来。目标缓冲器电平是对内部缓冲器延迟和缓冲器下溢的预期长度进行加权的成本函数最小化的结果。

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