专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08654880B2 Data transmission using low density parity check coding and constellation mapping 有权
标题翻译：数据传输采用低密度奇偶校验编码和星座映射
公开(公告)号：US08654880B2
公开(公告)日：2014-02-18
申请号：US13388810
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04B7/02
CPC分类号： H04L27/3488 , H03M13/1171 , H03M13/15 , H03M13/1515 , H03M13/255 , H03M13/2732 , H03M13/2906 , H03M13/356 , H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L27/2626 , H04L27/3405 , H04L27/36
摘要： Modern coding and modulation techniques have greatly improved the transmission of signals. A method is described including receiving a stream of data bits, demultiplexing the stream into a first and second substream, encoding the first and second substream using a low density parity check coding process, and mapping the first substream to a first region of a symbol constellation map and the second substream to a second region. Also, an apparatus is described including a demultiplexer that produces a first and second bitstream, a first encoder that encodes the first substream using a low density parity check coding process at a first encoding rate, a second encoder that encodes the second substream at a second rate, and a symbol mapper that maps bits from the first substream to a first region of a symbol constellation map and maps bits from the second substream to a second region.
摘要翻译：现代编码和调制技术大大提高了信号的传输。描述了一种方法，包括接收数据比特流，将流解复用为第一和第二子流，使用低密度奇偶校验编码过程对第一和第二子流进行编码，以及将第一子流映射到符号星座的第一区域将第二子流映射到第二区域。此外，描述了一种包括产生第一和第二比特流的解复用器的装置，使用第一编码率的低密度奇偶校验编码处理对第一子流进行编码的第一编码器，第二编码器，其在第二编码器中编码第二子流速率，以及符号映射器，其将来自第一子流的比特映射到符号星座图的第一区域，并将来自第二子流的比特映射到第二区域。

2. 发明授权

US08660203B2 Data reception using low density parity check coding and constellation mapping 有权
标题翻译：数据接收使用低密度奇偶校验编码和星座映射
公开(公告)号：US08660203B2
公开(公告)日：2014-02-25
申请号：US13388820
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04B7/02
CPC分类号： H04L27/38 , H03M13/655 , H03M13/6552 , H04L27/2647 , H04L27/3405 , H04L27/3488
摘要： Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要翻译：现代编码和调制技术大大提高了信号的发送和接收。描述了一种方法，包括接收将信号解映射到第一和第二子流中的信号，使用低密度奇偶校验解码过程对第一和第二子流进行解码，以及将第一和第二解码子流合并成单个数据流。描述了一种装置，其包括接收将信号中的调制符号解映射成第一和第二子流的信号的符号解映射器，第一解码器，其在第一解码时使用低密度奇偶校验编码处理对第一子流进行解码速率，以第二编码速率解码第二子流的第二解码器，以及将第一子流和第二子流组合成单个数据流的组合器。

3. 发明申请

US20120134446A1 METHOD AND APPARATUS FOR RECEIVING DATA 有权
标题翻译：接收数据的方法和装置
公开(公告)号：US20120134446A1
公开(公告)日：2012-05-31
申请号：US13388820
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04L27/06 , H03D1/02
CPC分类号： H04L27/38 , H03M13/655 , H03M13/6552 , H04L27/2647 , H04L27/3405 , H04L27/3488
摘要： Modem coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要翻译：调制解调器编码和调制技术大大改善了信号的发送和接收。描述了一种方法，包括接收将信号解映射到第一和第二子流中的信号，使用低密度奇偶校验解码过程对第一和第二子流进行解码，以及将第一和第二解码子流合并成单个数据流。描述了一种装置，其包括接收将信号中的调制符号解映射成第一和第二子流的信号的符号解映射器，第一解码器，其在第一解码时使用低密度奇偶校验编码处理对第一子流进行解码速率，以第二编码速率解码第二子流的第二解码器，以及将第一子流和第二子流组合成单个数据流的组合器。

4. 发明申请

US20120134423A1 DATA TRANSMISSION USING LOW DENSITY PARITY CHECK CODING AND CONSTELLATION MAPPING 有权
标题翻译：数据传输使用低密度奇偶校验编码和协调映射
公开(公告)号：US20120134423A1
公开(公告)日：2012-05-31
申请号：US13388810
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04N7/26 , H04N7/24
CPC分类号： H04L27/3488 , H03M13/1171 , H03M13/15 , H03M13/1515 , H03M13/255 , H03M13/2732 , H03M13/2906 , H03M13/356 , H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L27/2626 , H04L27/3405 , H04L27/36
摘要： Modern coding and modulation techniques have greatly improved the transmission of signals. A method is described including receiving a stream of data bits, demultiplexing the stream into a first and second substream, encoding the first and second substream using a low density parity check coding process, and mapping the first substream to a first region of a symbol constellation map and the second substream to a second region. Also, an apparatus is described including a demultiplexer that produces a first and second bitstream, a first encoder that encodes the first substream using a low density parity check coding process at a first encoding rate, a second encoder that encodes the second substream at a second rate, and a symbol mapper that maps bits from the first substream to a first region of a symbol constellation map and maps bits from the second substream to a second region.
摘要翻译：现代编码和调制技术大大提高了信号的传输。描述了一种方法，包括接收数据比特流，将流解复用为第一和第二子流，使用低密度奇偶校验编码过程对第一和第二子流进行编码，以及将第一子流映射到符号星座的第一区域将第二子流映射到第二区域。此外，描述了一种包括产生第一和第二比特流的多路分解器的装置，使用第一编码率的低密度奇偶校验编码处理对第一子流进行编码的第一编码器，第二编码器，其在第二编码器中编码第二子流速率，以及符号映射器，其将来自第一子流的比特映射到符号星座图的第一区域，并将来自第二子流的比特映射到第二区域。

5. 发明授权

US08542745B2 Method for video decoding supported by graphics processing unit 有权
标题翻译：由图形处理单元支持的视频解码方法
公开(公告)号：US08542745B2
公开(公告)日：2013-09-24
申请号：US12590978
申请日：2009-11-17
申请人： Hui Zhang , Li Hua Zhu , Charles Chuanming Wang
发明人： Hui Zhang , Li Hua Zhu , Charles Chuanming Wang
IPC分类号： H04N11/02
CPC分类号： H04N19/423 , H04N19/436 , H04N19/44
摘要： A method for utilizing a CUDA based GPU to accelerate a complex, sequential task such as video decoding, comprises decoding on a CPU headers and macroblocks of encoded video, performing inverse quantization (on CPU or GPU), transferring the picture data to GPU, where it is stored in a global buffer, and then on the GPU performing inverse waveform transforming of the inverse quantized data, performing motion compensation, buffering the reconstructed picture data in a GPU global buffer, determining if the decoded picture data are used as reference for decoding a further picture, and if so, copying the decoded picture data from the GPU global buffer to a GPU texture buffer. Advantages are that the data communication between CPU and GPU is minimized, the workload of CPU and GPU is balanced and the modules off-loaded to GPU can be efficiently realized since they are data-parallel and compute-intensive.
摘要翻译：一种利用基于CUDA的GPU来加速诸如视频解码的复杂顺序任务的方法包括对编码视频的CPU头部和宏块进行解码，执行逆量化（在CPU或GPU上），将图像数据传送到GPU，其中存储在全局缓冲器中，然后在GPU上执行逆量化数据的逆波形变换，执行运动补偿，在GPU全局缓冲器中缓冲重建的图像数据，确定解码的图像数据是否用作解码的参考如果是，将解码的图像数据从GPU全局缓冲器复制到GPU纹理缓冲器。优点是CPU和GPU之间的数据通信最小化，CPU和GPU的工作负载平衡，并且卸载到GPU的模块可以有效地实现，因为它们是数据并行和计算密集型的。

6. 发明申请

US20100265864A1 Method and apparatus for power management in communication system 审中-公开
标题翻译：通信系统电源管理方法与装置
公开(公告)号：US20100265864A1
公开(公告)日：2010-10-21
申请号：US12802432
申请日：2010-06-07
申请人： Yong He , Xiao Jin Ma , Huan Qiang Zhang , Jun Ll , Charles Chuanming Wang
发明人： Yong He , Xiao Jin Ma , Huan Qiang Zhang , Jun Ll , Charles Chuanming Wang
IPC分类号： H04W52/02
CPC分类号： H04W68/025 , H04L12/189 , H04W4/06
摘要： A method and apparatus for power management in the communication system, wherein the method for transmitting data from an access point to communication units comprising: assigning, by the access point, a first and a second association identifier in a message, to each of the communication units, to indicate the presence of respective buffered multicast data and unicast data respectively; setting, by the access point, the first association identifier to indicate the corresponding communication unit to receive the buffered multicast data, the second association identifier to indicate the corresponding communication unit to receive the buffered unicast data; and transmitting, by the access point, the message to awake the communication unit corresponding to the set first and/or second association identifier so as to transmit the buffered data thereto.
摘要翻译：一种用于在通信系统中进行功率管理的方法和装置，其中用于从接入点向通信单元发送数据的方法包括：由接入点将消息中的第一和第二关联标识符分配给每个通信单元，分别指示各个缓冲的组播数据和单播数据的存在; 由所述接入点设置所述第一关联标识符以指示相应的通信单元以接收缓冲的多播数据，所述第二关联标识符用于指示相应的通信单元以接收所缓存的单播数据; 以及由所述接入点发送所述消息以唤醒与所设置的第一和/或第二关联标识符对应的所述通信单元，以将所缓存的数据发送到所述第一和/或第二关联标识符。

7. 发明授权

US07675901B2 Method and an apparatus for mapping an MPEG transport stream into IP packets for WLAN broadcast 失效
标题翻译：用于将MPEG传输流映射到用于WLAN广播的IP分组中的方法和装置
公开(公告)号：US07675901B2
公开(公告)日：2010-03-09
申请号：US10541930
申请日：2004-01-09
申请人： Charles Chuanming Wang , Kumar Ramaswamy , Guillaume Bichot , Junbiao Zhang
发明人： Charles Chuanming Wang , Kumar Ramaswamy , Guillaume Bichot , Junbiao Zhang
IPC分类号： H04L12/66
CPC分类号： H04N21/64707 , H04L12/1836 , H04L12/189 , H04L29/06027 , H04L65/1026 , H04L65/1036 , H04L65/604 , H04L65/607 , H04L65/608 , H04W4/06 , H04W4/18 , H04W8/26 , H04W28/06 , H04W28/065 , H04W52/0229 , H04W72/1273 , H04W84/12 , Y02D70/142
摘要： A method for mapping from an MPEG-2 transport stream to an IP-based RTP/UDP/IP stack for broadcasting service in a WLAN. All the mapping functions may be performed in a receiver transcoder (FIG. 2). Mobile devices such as laptop computers, cell phones and PDAs have limited battery power, CPU processing and memory resources. To reduce CPU processing power and consumption battery power in these devices certain data processing functions are achieved in the communicating systems, such as the de-multiplexer function that typically prepares an MPEG-2 for retransmission at the local level. When a transcoder, capable of de-multiplexing and MPEG-2 transport stream receives a program it de-multiplexes the stream based on PIDs assigned to each transport packet. This de-multiplexing function extracts several components from a transport stream: video and audio PES/ES associated with programs and PSI (PAT and PMTs).
摘要翻译：一种从MPEG-2传输流映射到用于WLAN中的广播服务的基于IP的RTP / UDP / IP堆栈的方法。所有映射功能可以在接收机代码转换器（图2）中执行。诸如膝上型计算机，蜂窝电话和PDA的移动设备具有有限的电池电量，CPU处理和存储器资源。为了降低这些设备中的CPU处理能力和消耗电池功率，在通信系统中实现了某些数据处理功能，例如通常在本地级准备用于重传的MPEG-2的去多路复用器功能。当能够解复用和MPEG-2传输流的代码转换器接收到一个程序时，它根据分配给每个传输数据包的PID对数据流进行解复用。该解复用功能从传输流中提取多个组件：与程序和PSI（PAT和PMT）相关联的视频和音频PES / ES。

8. 发明授权

US08423855B2 Adaptive and scalable packer error correction apparatus and method 有权
标题翻译：自适应和可扩展的封隔器纠错装置和方法
公开(公告)号：US08423855B2
公开(公告)日：2013-04-16
申请号：US12449913
申请日：2007-03-06
申请人： Xiao Jun Ma , Huan Qiang Zhang , Ren Lei Chen , Guang Hua Zhou , Jun Li , Charles Chuanming Wang
发明人： Xiao Jun Ma , Huan Qiang Zhang , Ren Lei Chen , Guang Hua Zhou , Jun Li , Charles Chuanming Wang
IPC分类号： G06F11/00
CPC分类号： H04L1/1819 , H04L1/1671 , H04L1/1848 , H04L1/1854 , H04L2001/0093
摘要： An adaptive and scalable packet error correction apparatus and method in a wireless multicast network is provided. Each retransmission request from a receiver contains a round number and the number of repairs sent in that round. At each receiver, there are two counters for counting the rounds sent out on the network and the number of repairs that have been required. A receiver on the wireless multicast network listens to the ARQ requests sent by other receivers to update the two counters and determines whether its request should be suppressed or be sent out.
摘要翻译：提供了一种无线组播网络中的自适应和可扩展的分组纠错装置和方法。来自接收机的每个重发请求包含轮次和在该轮中发送的维修次数。在每个接收机上，有两个计数器用于计算网络上发送的轮次和所需的维修次数。无线组播网络上的接收者收听由其他接收者发送的ARQ请求，以更新两个计数器，并确定其请求是否被抑制或被发送出去。

9. 发明授权

US07675881B2 Interfacing a WLAN with a mobile communications system 有权
标题翻译：将WLAN与移动通信系统接口
公开(公告)号：US07675881B2
公开(公告)日：2010-03-09
申请号：US10517466
申请日：2003-05-28
申请人： Shaily Verma , Charles Chuanming Wang
发明人： Shaily Verma , Charles Chuanming Wang
IPC分类号： H04W4/00 , H04W24/00
CPC分类号： H04W92/02 , H04W80/00 , H04W84/042 , H04W84/12
摘要： An interface for connecting networks includes an interworking function provided between a wireless local area network (WLAN) and a public mobile land network (PLMN) to provide communication interactions between the PLMN and the WLAN. The interworking function includes a dual-protocol stack, which interfaces the WLAN protocols and PLMN protocols to provide seamless communications between the WLAN and the PLMN such that an increase in available service bandwidth provided for users of the PLMN is maintained.
摘要翻译：用于连接网络的接口包括在无线局域网（WLAN）和公共移动陆地网络（PLMN）之间提供的互通功能，以提供PLMN和WLAN之间的通信交互。互通功能包括双协议栈，其将WLAN协议和PLMN协议接口以提供WLAN和PLMN之间的无缝通信，从而维持为PLMN的用户提供的可用业务带宽的增加。

10. 发明申请

US20070165635A1 Method for the exchange of data packets in a network of distributed stations, device for compression of data packets and device for decompression of data packets 审中-公开
标题翻译：用于在分布式站的网络中交换数据分组的方法，用于压缩数据分组的设备和用于解压缩数据分组的设备
公开(公告)号：US20070165635A1
公开(公告)日：2007-07-19
申请号：US11652755
申请日：2007-01-12
申请人： Zhi Gang Zhang , Huan Qiang Zhang , Charles Chuanming Wang
发明人： Zhi Gang Zhang , Huan Qiang Zhang , Charles Chuanming Wang
IPC分类号： H04L12/56
CPC分类号： H04L69/04 , H04L69/22 , H04W28/06
摘要： The invention is related with network communication, in particular wireless networking. In order to improve bandwidth utilization, a header compression protocol is implemented in most wireless network systems, such as robust header compression ROHC for WLAN systems. When using multicast groups for data communication problems with ROHC are related with relative late initiation of stations that newly enter the multicast group. The invention proposes an improved state machine for the compressor in order to overcome this drawback. It is also proposed an improvement for the decompressors which omit sending positive acknowledgements in order to further improve compression efficiency. The invention also concerns an accordingly improved method for the exchange of data packets in a network of distributed stations.
摘要翻译：本发明涉及网络通信，特别是无线网络。为了提高带宽利用率，在大多数无线网络系统中实现了头部压缩协议，例如用于WLAN系统的鲁棒报头压缩ROHC。当使用组播组与ROHC的数据通信问题与新进入组播组的站的相对较晚的启动有关。本发明提出了一种用于压缩机的改进的状态机，以克服这个缺点。还提出了为了进一步提高压缩效率而省略发送肯定确认的解压缩器的改进。本发明还涉及用于在分布式站的网络中交换数据分组的相应改进的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式