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11. 发明申请

US20110126248A1 MANAGED MULTIPLEXING OF VIDEO IN AN ADAPTIVE BIT RATE ENVIRONMENT 有权
标题翻译：在自适应位速率环境中管理视频多路复用
公开(公告)号：US20110126248A1
公开(公告)日：2011-05-26
申请号：US12949957
申请日：2010-11-19
申请人： Yuval Fisher , Adam S. Tom
发明人： Yuval Fisher , Adam S. Tom
IPC分类号： H04N7/173
CPC分类号： H04N21/47202 , H04N7/17318 , H04N21/2365 , H04N21/26216 , H04N21/2662 , H04N21/4347
摘要： Methods and apparatus for delivering video programs are provided. A plurality of video programs are provided in a fragmented, adaptive bit rate format. A request for a respective video program from the plurality of video programs is received from each of a plurality of clients. The requested video programs are multiplexed for delivery to the clients in a multiplex over a shared, fixed-bit-rate transmission channel. The requests may be for the same or different video programs. The requests for the video programs may occur at the same or at different times. In the fragmented, adaptive bit rate format, the fragment delivered to the client may not be the same as the requested fragment and is dependent on multiple criteria, including the bitrate and quality of the requested and delivered fragments, the total available delivery bandwidth, and other fragment requests made on the channel. The resulting multiplex may be either a constant bit rate multiplex or a variable bit rate multiplex.
摘要翻译：提供了提供视频节目的方法和装置。以分段的自适应比特率格式提供多个视频节目。从多个客户端中的每一个接收来自多个视频节目的相应视频节目的请求。所请求的视频节目被多路复用以通过共享的固定比特率传输信道以多路传送方式传送给客户端。请求可能是相同或不同的视频节目。视频节目的请求可以在相同或不同的时间发生。在分段的自适应比特率格式中，递送到客户端的片段可能与所请求的片段不一致，并且取决于多个标准，包括所请求和传递片段的比特率和质量，总可用传送带宽和在频道上发出的其他片段请求。所得到的多路复用可以是恒定比特率复用或可变比特率复用。

12. 发明授权

US10003851B2 Managed multiplexing of video in an adaptive bit rate environment 有权
公开(公告)号：US10003851B2
公开(公告)日：2018-06-19
申请号：US12949957
申请日：2010-11-19
申请人： Yuval Fisher , Adam S. Tom
发明人： Yuval Fisher , Adam S. Tom
IPC分类号： H04N21/262 , H04N21/2662 , H04N21/434 , H04N21/2365 , H04N21/472 , H04N7/173
CPC分类号： H04N21/47202 , H04N7/17318 , H04N21/2365 , H04N21/26216 , H04N21/2662 , H04N21/4347
摘要： Methods and apparatus for delivering video programs are provided. A plurality of video programs are provided in a fragmented, adaptive bit rate format. A request for a respective video program from the plurality of video programs is received from each of a plurality of clients. The requested video programs are multiplexed for delivery to the clients in a multiplex over a shared, fixed-bit-rate transmission channel. The requests may be for the same or different video programs. The requests for the video programs may occur at the same or at different times. In the fragmented, adaptive bit rate format, the fragment delivered to the client may not be the same as the requested fragment and is dependent on multiple criteria, including the bitrate and quality of the requested and delivered fragments, the total available delivery bandwidth, and other fragment requests made on the channel. The resulting multiplex may be either a constant bit rate multiplex or a variable bit rate multiplex.

13. 发明授权

US5311546A Carrier phase recovery for an adaptive equalizer 失效
标题翻译：自适应均衡器的载波相位恢复
公开(公告)号：US5311546A
公开(公告)日：1994-05-10
申请号：US53962
申请日：1993-04-27
申请人： Woo H. Paik , Scott A. Lery , Adam S. Tom
发明人： Woo H. Paik , Scott A. Lery , Adam S. Tom
IPC分类号： H04B3/06 , H04L25/03 , H04L27/38 , H04B3/04 , H04L27/06
CPC分类号： H04L25/0314 , H04L27/3827
摘要： A method and apparatus are provided for adaptively equalizing data signals in a communications receiver. An unequalized data signal is demodulated. The demodulated data signal is filtered in an adaptive equalizer that initially updates adaptive filter coefficients using error signals derived from a first algorithm. A carrier lock signal is generated when a phase error of a filtered signal output from the adaptive equalizer reaches a threshold value. The adaptive filter coefficients are updated using error signals derived from a second algorithm instead of the first algorithm in response to the carrier lock signal. The first algorithm is a self-recovering equalization algorithm such as the Constant Modulus Algorithm. The second algorithm can be a decision directed algorithm. Carrier phase is recovered without the use of a phase rotator or phase de-rotator, by locating the adaptive equalizer inside of the carrier recovery loop. The invention is particularly adapted for use in the recovery of multilevel amplitude modulated data, such as QAM data.
摘要翻译：提供了一种用于在通信接收机中自适应地均衡数据信号的方法和装置。解调不平等的数据信号。解调数据信号在自适应均衡器中被滤波，自适应均衡器最初使用从第一算法得到的误差信号来更新自适应滤波器系数。当从自适应均衡器输出的滤波信号的相位误差达到阈值时，产生载波锁定信号。响应于载波锁定信号，使用从第二算法而不是第一算法导出的误差信号来更新自适应滤波器系数。第一种算法是自恢复均衡算法，如恒模算法。第二种算法可以是决策指导算法。通过将自适应均衡器定位在载波恢复环路内部，不使用相位旋转器或相位去旋转器来恢复载波相位。本发明特别适用于恢复诸如QAM数据的多电平幅度调制数据。

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