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1. 发明申请

US20120087231A1 Packet Loss Recovery Method and Device for Voice Over Internet Protocol 审中-公开
公开(公告)号：US20120087231A1
公开(公告)日：2012-04-12
申请号：US12086372
申请日：2006-12-01
申请人： Huan Qiang Zhang , Zhi Gang Zhang
发明人： Huan Qiang Zhang , Zhi Gang Zhang
IPC分类号： H04L12/26
CPC分类号： G10L19/005
摘要： A method and device for method of doing packet loss recovery in VoIP system is disclosed. By employing the information in LPC parameters of CELP codec, the speech packets/frames which belong to the beginning segment of each speech phoneme are located, and packet repetition is adopted to protect these packets before they are transmitted in the network.
摘要翻译：公开了一种在VoIP系统中进行丢包恢复的方法和装置。通过采用CELP编解码器的LPC参数中的信息，定位属于每个语音音素的开始段的语音分组/帧，并且在网络中发送之前采用分组重复来保护这些分组。

2. 发明授权

US08005086B2 Providing an independent compression server within a network, as well as a method, network station and DHCP server 有权
标题翻译：在网络中提供独立的压缩服务器，以及方法，网络站和DHCP服务器
公开(公告)号：US08005086B2
公开(公告)日：2011-08-23
申请号：US12086652
申请日：2006-12-01
申请人： Huan Qiang Zhang , Zhi Gang Zhang , Chuanming Wang , Lin Xiang Cheng
发明人： Huan Qiang Zhang , Zhi Gang Zhang , Chuanming Wang , Lin Xiang Cheng
IPC分类号： H04L12/28
CPC分类号： H04L67/2861 , H04L29/12018 , H04L29/12226 , H04L61/10 , H04L61/2015 , H04L69/04 , H04L69/161 , H04L69/22
摘要： The invention is related with the problem of utilizing data compression in a network of distributed stations. Often header compression is used to improve the bandwidth usage in networks, in particular wireless networks. Header compression could be implemented in access points or routers, but both implementations have serious problems, e.g. due to limited CPU power, lack of scalability, or handover latency. To resolve the problems the invention proposes to use a dedicated data compression server in the network and a new protocol to transparently deploy data compression in the network.
摘要翻译：本发明涉及在分布式站的网络中利用数据压缩的问题。通常，报头压缩用于改善网络中的带宽使用，特别是无线网络。报头压缩可以在接入点或路由器中实现，但是两个实现都具有严重的问题，例如，由于CPU功耗有限，缺乏可扩展性或切换延迟。为了解决本发明提出的在网络中使用专用数据压缩服务器的问题，以及用于在网络中透明地部署数据压缩的新协议。

3. 发明授权

US08761015B2 Method and system for frame classification 有权
标题翻译：框架分类方法和系统
公开(公告)号：US08761015B2
公开(公告)日：2014-06-24
申请号：US12312012
申请日：2006-10-25
申请人： Zhi Gang Zhang , Chuanming Wang , Xiao Jun Ma , Huan Qiang Zhang
发明人： Zhi Gang Zhang , Chuanming Wang , Xiao Jun Ma , Huan Qiang Zhang
IPC分类号： G01R31/08
CPC分类号： H04L47/10 , H04L47/2408 , H04L47/2433 , H04L47/2441 , H04W72/1242
摘要： The present invention provides a method and a device for classifying data frames. The method is typically carried out by a communication device in a wireless network with quality of service capability. It comprises the step of comparing data in a frame to data in a plurality of classifier entries, wherein the order of comparison of the classifier entries with a frame is a function of a quality of service priority level, and the step of classifying a frame for which a match is found as a function of a parameter associated with the matching classifier entry.
摘要翻译：本发明提供了一种用于对数据帧进行分类的方法和装置。该方法通常由具有服务质量能力的无线网络中的通信设备来执行。它包括将帧中的数据与多个分类器条目中的数据进行比较的步骤，其中，分类器条目与帧的比较顺序是服务质量优先级的函数，以及对帧的分类步骤作为与匹配分类器条目相关联的参数的函数发现匹配。

4. 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。

5. 发明授权

US08520677B2 Method of data rate adaptation for multicast communication 有权
标题翻译：组播通信数据速率调整方法
公开(公告)号：US08520677B2
公开(公告)日：2013-08-27
申请号：US12998565
申请日：2009-11-02
申请人： Yan Feng Zhang , Xiao-Jin Ma , Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
发明人： Yan Feng Zhang , Xiao-Jin Ma , Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
IPC分类号： H04L12/28 , H04H20/71
CPC分类号： H04L1/0002 , H04L1/18 , Y02D50/10
摘要： A method to implement an adaptive multicast data rate transmission selection includes determining the lowest signal strength station in a multicast group, using signal strength as an indicator to increase data rate, and determining if the increase in data rate is viable for multicast transmission by determining frame or packet loss using the increased data rate.
摘要翻译：实现自适应多播数据速率传输选择的方法包括：使用信号强度作为指标来确定多播组中的最低信号强度站，以增加数据速率，以及通过确定帧来确定数据速率的增加对于多播传输是否可行或使用增加的数据速率的分组丢失。

6. 发明授权

US09137039B2 Accessing a communication media using both a contention period and a polling period 有权
标题翻译：使用争用期和轮询周期访问通信媒体
公开(公告)号：US09137039B2
公开(公告)日：2015-09-15
申请号：US12455547
申请日：2009-06-03
申请人： Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
发明人： Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
IPC分类号： H04L12/403 , H04L12/64 , H04L12/413
CPC分类号： H04L12/4035 , H04L12/4135 , H04L12/6418
摘要： The present invention provides an access point device, a communication unit and a method for access to a communication media in a communication network. The access point comprises a communication interface for exchanging data with a plurality of communication units in the communication network via the communication media; and a processor for receiving a media access request message in a contention mode from at least one communication unit of the plurality of communication units via the communication interface; and polling the at least one communication unit by assigning a media access duration to each of the at least one communication unit according to a corresponding duration information for media access in the received media access request message.
摘要翻译：本发明提供一种接入点设备，通信单元和用于接入通信网络中的通信介质的方法。接入点包括通信接口，用于经由通信介质与通信网络中的多个通信单元交换数据; 以及处理器，用于经由所述通信接口从所述多个通信单元中的至少一个通信单元以争用模式接收媒体接入请求消息; 以及通过根据所接收到的媒体访问请求消息中的媒体访问的对应的持续时间信息，向所述至少一个通信单元中的每一个分配媒体访问持续时间来轮询所述至少一个通信单元。

7. 发明授权

US08195775B2 Enhanced method and apparatus for reducing congestion in DHCP network system 有权
标题翻译：用于减少DHCP网络系统拥塞的增强方法和装置
公开(公告)号：US08195775B2
公开(公告)日：2012-06-05
申请号：US12450684
申请日：2007-04-06
申请人： Zhi Gang Zhang , Kui Gao , Jian Song Li
发明人： Zhi Gang Zhang , Kui Gao , Jian Song Li
IPC分类号： G06F15/16
CPC分类号： H04L47/10 , H04L29/12283 , H04L47/125 , H04L61/2015 , H04L61/2061
摘要： An enhanced method and apparatus for reducing congestion in dynamic host configuration protocol network system are provided. The congestion reduction method comprises steps of receiving a DHCP request from a DHCP client; and stopping responding to a certain number of DHCPDISCOVER message. And the dynamic host configuration protocol server comprises at least one distributed server, at which the contents of the network service provider server are backed up.
摘要翻译：提供了一种用于减少动态主机配置协议网络系统拥塞的增强方法和装置。所述拥塞减少方法包括从DHCP客户端接收DHCP请求的步骤; 并停止响应一定数量的DHCPDISCOVER消息。并且动态主机配置协议服务器包括至少一个分布式服务器，在该服务器上备份网络服务提供商服务器的内容。

8. 发明申请

US20100034214A1 Access point device, communication device and method for access to communication media 有权
标题翻译：接入点设备，通信设备和访问通信媒体的方法
公开(公告)号：US20100034214A1
公开(公告)日：2010-02-11
申请号：US12455547
申请日：2009-06-03
申请人： Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
发明人： Zhi Gang Zhang , Lin Xiang Cheng , Xian Lei Wang
IPC分类号： H04L12/413
CPC分类号： H04L12/4035 , H04L12/4135 , H04L12/6418
摘要： The present invention provides an access point device, a communication unit and a method for access to a communication media in a communication network. The access point comprises a communication interface for exchanging data with a plurality of communication units in the communication network via the communication media; and a processor for receiving a media access request message in a contention mode from at least one communication unit of the plurality of communication units via the communication interface; and polling the at least one communication unit by assigning a media access duration to each of the at least one communication unit according to a corresponding duration information for media access in the received media access request message.
摘要翻译：本发明提供一种接入点设备，通信单元和用于接入通信网络中的通信介质的方法。接入点包括通信接口，用于经由通信介质与通信网络中的多个通信单元交换数据; 以及处理器，用于经由所述通信接口从所述多个通信单元中的至少一个通信单元以争用模式接收媒体接入请求消息; 以及通过根据所接收到的媒体访问请求消息中的媒体访问的对应的持续时间信息，向所述至少一个通信单元中的每一个分配媒体访问持续时间来轮询所述至少一个通信单元。

9. 发明申请

US20100031303A1 Headend apparatus for data transmission over cable access network 审中-公开
标题翻译：通过电缆接入网络进行数据传输的前端设备
公开(公告)号：US20100031303A1
公开(公告)日：2010-02-04
申请号：US12311373
申请日：2007-09-29
申请人： Jin Fei Yu , Junbiao Zhang , Zhi Gang Zhang
发明人： Jin Fei Yu , Junbiao Zhang , Zhi Gang Zhang
IPC分类号： H04N7/173
CPC分类号： H04L12/2801 , H04N21/6118
摘要： The present invention relates to a server used to transmit Ethernet data signals from an Ethernet network to multiple cable TV network clients or receive Ethernet data signals from the multiple cable TV network clients, the server comprising multiple APs (access points), wherein the APs synchronously start a downlink transmission or an uplink transmission, and wherein during the downlink transmission the APs convert the Ethernet data signals into encoded and modulated RF signals and transmit the encoded and modulated RF signals to the multiple cable TV network clients, and during the uplink transmission the encoded and modulated RF signals from the cable TV network clients and convert the encoded and modulated RF signals into the Ethernet data signals.
摘要翻译：本发明涉及用于将以太网数据信号从以太网传输到多个有线电视网络客户端的服务器或从多个有线电视网络客户端接收以太网数据信号的服务器，该服务器包括多个AP（接入点），其中AP同步开始下行链路传输或上行链路传输，并且其中在下行链路传输期间，AP将以太网数据信号转换成编码和调制的RF信号，并将编码和调制的RF信号发送到多个有线电视网络客户端，并且在上行链路传输期间编码和调制的RF信号，并将编码和调制的RF信号转换成以太网数据信号。

10. 发明授权

US09026878B2 Apparatus and method for fast retransmission in a power line communication network 有权
标题翻译：电力线通信网络中快速重传的装置和方法
公开(公告)号：US09026878B2
公开(公告)日：2015-05-05
申请号：US12734591
申请日：2008-11-11
申请人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
发明人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
IPC分类号： G06F11/00 , H04L1/18 , H04L1/00
CPC分类号： H04L1/1867 , H04L2001/0097
摘要： A fast retransmission method by introducing the internal node under better channel condition to join the work of retransmission after the destination node sends out the packet loss indication for unicast services. Extended to serve multicast services, a system comprising a plurality of nodes utilizes the farthest node in each branch from the source to transmit an acknowledge signal when packet loss occurs. The system then enables the closest node to the acknowledging node to retransmit the requested packet, thereby improving the target packet hit rate and data integrity with less retransmission steps.
摘要翻译：一种快速重传方法，在目的节点发出单播服务的丢包指示后，通过在更好的信道条件下引入内部节点加入重传工作。扩展以服务多播服务，包括多个节点的系统利用来自源的每个分支中的最远节点在发生分组丢失时发送确认信号。然后，系统使得到确认节点的最靠近的节点重传所请求的分组，从而以更少的重传步骤来提高目标分组命中率和数据完整性。

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