公开(公告)号：US20100232380A1

公开(公告)日：2010-09-16

申请号：US12720031

申请日：2010-03-09

申请人： Young-June Choi ,  Dragos Niculescu ,  Ashwini Kumar

发明人： Young-June Choi ,  Dragos Niculescu ,  Ashwini Kumar

IPC分类号： H04W4/00

CPC分类号： H04W72/082 ,  H04W16/14 ,  H04W74/0808

摘要： A system and method for enabling primary and secondary user coexistence for a wireless system includes performing spectrum sensing in a channel to determine primary user usage in a first mode of operation. It is determined whether the primary user usage includes a pattern of usage. If a pattern of usage is detected, a second mode of operation is engaged which includes at least reducing spectrum sensing by a secondary user to permit secondary user usage of the channel.

摘要翻译： 用于使得无线系统的主用户和次用户共存的系统和方法包括在信道中执行频谱感测以确定在第一操作模式中的主要用户使用。 确定主用户使用是否包括使用模式。 如果检测到使用模式，则采用第二操作模式，其包括至少减少次级用户的频谱感测以允许次要用户使用该频道。

公开(公告)号：US20140376632A1

公开(公告)日：2014-12-25

申请号：US14307860

申请日：2014-06-18

申请人： Kyeong Ho Yang ,  Myo Tun ,  Ashwini Kumar

发明人： Kyeong Ho Yang ,  Myo Tun ,  Ashwini Kumar

IPC分类号： H04N19/89 ,  H04N19/51

CPC分类号： H04N19/521 ,  H04N19/895

摘要： Systems and methods that employ an application-assisted approach to adaptive spatio-temporal error concealment in video decoders. The systems and methods employ a video receiver that can receive real-time video frames from a video transmitter over a wired and/or wireless network. The video receiver includes an end system configurable as an application for consuming the content of the real-time video frames. The end system application can determine whether each received real-time video frame is complete or incomplete, whether each received slice is complete or incomplete, and provide such information to the video decoder for use in avoiding errors while decoding the respective real-time video frames. The video decoder can determine whether any pixel blocks included in real-time video packets are properly decoded or missing, generate statistics regarding the coding mode of the respective pixel blocks, and use such further information while performing adaptive spatio-temporal error concealment on the respective pixel blocks.

摘要翻译： 采用应用辅助方法对视频解码器中的自适应时空错误隐藏的系统和方法。 系统和方法采用可以通过有线和/或无线网络从视频发射机接收实时视频帧的视频接收机。 视频接收器包括可配置为消费实时视频帧的内容的应用的终端系统。 终端系统应用程序可以确定每个接收到的实时视频帧是完整还是不完整，无论每个接收到的片是完整还是不完整的，并且将这些信息提供给视频解码器以用于在解码相应的实时视频帧期间避免错误 。 视频解码器可以确定实时视频分组中包括的任何像素块是否被正确解码或丢失，生成关于各个像素块的编码模式的统计信息，并且在对相应的像素块执行自适应时空误差隐藏的同时使用这样的信息 像素块。

公开(公告)号：US20230138959A1

公开(公告)日：2023-05-04

申请号：US17976514

申请日：2022-10-28

申请人： Pedamalli SAIKRISHNA ,  Ankur Goyal ,  Ashok Kumar Reddy Chavva ,  Ashwini Kumar ,  Suhwook Kim ,  Sangho Lee

发明人： Pedamalli SAIKRISHNA ,  Ankur Goyal ,  Ashok Kumar Reddy Chavva ,  Ashwini Kumar ,  Suhwook Kim ,  Sangho Lee

IPC分类号： H03F3/26 ,  G06K9/62 ,  G06N3/04

摘要： Embodiments herein disclose a method for controlling a non-linear effect of a power amplifier by an apparatus. The method includes acquiring an input data of the power amplifier of the apparatus and an output data of the power amplifier. Further, the method includes determining an inverse function using a neural network. The inverse function maps normalized output data of the PA to the input data of the PA, where the neural network comprises at least one sub-network for at least one memory tap from a plurality of memory taps in the neural network. Further, the method includes modifying the input data based on the determined inverse function value by dynamically changing a usage of the at least one memory tap from the plurality of memory taps. Further, the method includes compensating the non-linear effect in the output data of the power amplifier.

公开(公告)号：US08428118B2

公开(公告)日：2013-04-23

申请号：US11465129

申请日：2006-08-17

申请人： Sriram Sethuraman ,  Arvind Raman ,  Ashwini Kumar ,  Malavika Bhaskaranand ,  Omkiran Sharma

发明人： Sriram Sethuraman ,  Arvind Raman ,  Ashwini Kumar ,  Malavika Bhaskaranand ,  Omkiran Sharma

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： G10L19/173 ,  H04N19/40 ,  H04N19/61

摘要： A method/system of transcoding an MPEG 2/4 bit stream into an H.264 format, handles an input MPEG 2/4 bit stream in a decoder, and identifies certain data in the input bit stream for reuse in the H.264 format; and, reuses the identified data in a re-encoder with assistance from a mapping module in transcoding by converting the input bit stream into an output H.264 format. The identified data includes information at a macrolevel and information at a picture level. The information at the macrolevel might comprise additional stages incorporated in the re-encoder module including a Mapping Process stage, a Sub Pixel Refinement stage, a Mode Selection stage to choose from Intra, Inter or Skip modes, followed by the standard H.264 encoding loop and the Entropy Coding Block. The information at the picture level might include; a) average quantizer of frame, and, b) total bits per frame.

摘要翻译： 将MPEG 2/4比特流转码为H.264格式的方法/系统处理解码器中的输入MPEG 2/4比特流，并且识别输入比特流中的某些数据以在H.264格式中重用 ; 并且通过将输入的比特流转换成输出的H.264格式，通过代码转换中的映射模块的帮助，将识别的数据重新编码在重新编码器中。 所识别的数据包括宏观级的信息和图像级的信息。 宏级别的信息可能包括并入重编码器模块中的附加阶段，包括映射处理阶段，子像素精化阶段，从Intra，Inter或Skip模式中选择的模式选择阶段，随后是标准H.264编码 循环和熵编码块。 图片级别的信息可能包括： a）帧的平均量化器，以及b）每帧的总比特数。

公开(公告)号：US20080043831A1

公开(公告)日：2008-02-21

申请号：US11465129

申请日：2006-08-17

申请人： Sriram Sethuraman ,  Arvind Raman ,  Ashwini Kumar ,  Malavika Bhaskaranand ,  Omkiran Sharma

发明人： Sriram Sethuraman ,  Arvind Raman ,  Ashwini Kumar ,  Malavika Bhaskaranand ,  Omkiran Sharma

IPC分类号： H04B1/66

CPC分类号： G10L19/173 ,  H04N19/40 ,  H04N19/61

摘要： A method/system of transcoding an MPEG 2/4 bit stream into an H.264 format, handles an input MPEG 2/4 bit stream in a decoder, and identifies certain data in the input bit stream for reuse in the H.264 format; and, reuses the identified data in a re-encoder with assistance from a mapping module in transcoding by converting the input bit stream into an output H.264 format. The identified data includes information at a macrolevel and information at a picture level. The information at the macrolevel might comprise additional stages incorporated in the re-encoder module including a Mapping Process stage, a Sub Pixel Refinement stage, a Mode Selection stage to choose from Intra, Inter or Skip modes, followed by the standard H.264 encoding loop and the Entropy Coding Block. The information at the picture level might include; a) average quantizer of frame, and, b) total bits per frame.

摘要翻译： 将MPEG 2/4比特流转码为H.264格式的方法/系统处理解码器中的输入MPEG 2/4比特流，并且识别输入比特流中的某些数据以在H.264格式中重用 ; 并且通过将输入的比特流转换成输出的H.264格式，通过代码转换中的映射模块的帮助，将识别的数据重新编码在重新编码器中。 所识别的数据包括宏观级的信息和图像级的信息。 宏级别的信息可能包括并入重编码器模块中的附加阶段，包括映射处理阶段，子像素精化阶段，从Intra，Inter或Skip模式中选择的模式选择阶段，随后是标准H.264编码 循环和熵编码块。 图片级别的信息可能包括： a）帧的平均量化器，以及b）每帧的总比特数。

公开(公告)号：US09756356B2

公开(公告)日：2017-09-05

申请号：US14307860

申请日：2014-06-18

申请人： Kyeong Ho Yang ,  Myo Tun ,  Ashwini Kumar

发明人： Kyeong Ho Yang ,  Myo Tun ,  Ashwini Kumar

IPC分类号： H04N19/513 ,  H04N19/895

CPC分类号： H04N19/521 ,  H04N19/895

摘要： Systems and methods that employ an application-assisted approach to adaptive spatio-temporal error concealment in video decoders. The systems and methods employ a video receiver that can receive real-time video frames from a video transmitter over a wired and/or wireless network. The video receiver includes an end system configurable as an application for consuming the content of the real-time video frames. The end system application can determine whether each received real-time video frame is complete or incomplete, whether each received slice is complete or incomplete, and provide such information to the video decoder for use in avoiding errors while decoding the respective real-time video frames. The video decoder can determine whether any pixel blocks included in real-time video packets are properly decoded or missing, generate statistics regarding the coding mode of the respective pixel blocks, and use such further information while performing adaptive spatio-temporal error concealment on the respective pixel blocks.