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81.发明授权Method and apparatus for dynamically adapting a vector-quantizing coder codebook 失效用于动态调整矢量量化编码器码本的方法和装置
公开(公告)号：US5007092A
公开(公告)日：1991-04-09
申请号：US420966
申请日：1989-10-13
申请人： Claude Galand , Jean Menez , Michele Rosso
发明人： Claude Galand , Jean Menez , Michele Rosso
摘要： A signal vector quantizing coder (CELP) is provided with an adaptive codebook originally loaded with preselected codewords. The codebook is split into a fixed contents portion and a fixed length adaptive contents portion. During coding operations, the codewords dynamically selected for coding the coder input signal are shifted into the fixed length adaptive codebook section for codebook contents updating purposes.
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公开(公告)号：US4782523A
公开(公告)日：1988-11-01
申请号：US43053
申请日：1987-04-27
CPC分类号： H04Q1/457
摘要： The process is made to detect a received tone including at least one single predetermined frequency, within a signal encoded using block coding and Linear Prediction Coding techniques providing auto-correlation coefficients R(i) and direct form coefficients a(i). The process is based upon Fourier Transform computations over the successive blocks of a(i)'s, with table look up tone identification, further confirmed upon R(i)'s stationarity detecting.
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公开(公告)号：US4677671A
公开(公告)日：1987-06-30
申请号：US553266
申请日：1983-11-18
申请人： Claude Galand , Khamphuc Daulasim
发明人： Claude Galand , Khamphuc Daulasim
摘要： A voice signal coding method is provided for processing the residual base-band signal provided by a Voice Excited Predictive (VEPC) Coder. The residual signal is split over several sub-bands and the contents of each sub-band is dually coded by using a process including a simultaneous direct BCPCM and differential APC coding with dynamic assignment of the quantizing bits according to the relative sub-band contents, which simultaneous coding is followed by a dynamic choice of the sub-band coded output providing the lowest coding error.
摘要翻译： 提供语音信号编码方法，用于处理由语音激励预测（VEPC）编码器提供的残余基带信号。 残差信号在几个子带上分离，并且通过使用包括同时直接BCPCM和差分APC编码的处理，根据相对子带内容动态分配量化比特来对每个子带的内容进行双重编码， 其中的同步编码之后是提供最低编码误差的子带编码输出的动态选择。
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84.发明授权Method and system for transmitting digitized voice signals as packets of bits 失效将数字化语音信号作为数据包发送的方法和系统
公开(公告)号：US4630262A
公开(公告)日：1986-12-16
申请号：US736187
申请日：1985-05-20
CPC分类号： H04L12/64
摘要： A method of transmitting digitized voice signals as packets of bits in a digital transmission network to which a plurality of terminals acting as sources of voice signals are attached. The method includes, at the transmitting end and for each source, the steps of: a dividing the signal into successive, digitally-coded segments; performing a so-called source activity detection; and assembling the bits resulting from the coding operation into packets, each packet being provided with a header containing, in particular, a parity bit whose logic value is modified whenever an inactivity or long pause is detected. At the receiving end, detection of a change in the value of said parity bit causes the delivery of a packet of bits to the decoder/synthesizer to be delayed by a given time interval called retention delay.
摘要翻译： 将数字化语音信号作为数字传输网络中的位数据包发送的方法，作为语音信号源的多个终端被附加到数字传输网络中。 该方法在发送端和每个源处包括以下步骤：将信号划分成连续的数字编码段; 执行所谓的源活动检测; 并且将由编码操作产生的比特组合成分组，每个分组被提供有头部，其特别地包含每当检测到不活动或长暂停时其逻辑值被修改的奇偶校验位。 在接收端，检测到所述奇偶校验位的值的变化导致将解码器/合成器的位分组的传递延迟了称为保留延迟的给定时间间隔。
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公开(公告)号：US20120195429A1
公开(公告)日：2012-08-02
申请号：US13360550
申请日：2012-01-27
CPC分类号： H04L63/0209 , H04L63/0272 , H04L63/0435 , H04L63/0464
摘要： Secure network communications via a firewall device are provided between a first device and a second device, where an encryption parameter is shared by the devices. A data packet sent by the first device may then be copied within the firewall device, so that the copy of the data packet can be decrypted within a portion of the firewall device. In particular, the portion of the firewall device in which decryption takes place is defined such that contents of the portion are inaccessible to an operator of the firewall device. Thus, scanning of the decrypted copy of the data packet for compliance with a predetermined criterion may take place within the firewall device, without an operator of the firewall device having access to the contents of the data packet to be transmitted. Thereafter, the original data packet can be forwarded to its originally intended recipient.
摘要翻译： 在第一设备和第二设备之间提供通过防火墙设备的安全网络通信，其中加密参数由设备共享。 然后可以在防火墙设备内复制由第一设备发送的数据分组，使得可以在防火墙设备的一部分内解密数据分组的副本。 特别地，定义防火墙设备中发生解密的部分，使得该部分的内容对于防火墙设备的操作者是不可访问的。 因此，在防火墙设备内可以进行符合预定标准的数据分组的解密副本的扫描，而防火墙设备的操作者可以访问要发送的数据分组的内容。 此后，可以将原始数据分组转发到其原始的接收者。
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86.发明授权Packet header compression system and method based upon a dynamic template creation 有权基于动态模板创建的数据包头压缩系统和方法公开(公告)号：US08065437B2
公开(公告)日：2011-11-22
申请号：US12647492
申请日：2009-12-26
IPC分类号： G06F15/16
CPC分类号： H04L69/04 , H03M7/3066 , H04L29/06 , H04L69/22
摘要： Header compression system for compressing the header of the data packets of a flow transmitted from an ingress node to an egress node through a data transmission network comprising template creating means, in both ingress node and egress node, adapted for creating the same compression template from a predetermined number of uncompressed data packets at the beginning of the flow respectively transmitted by the ingress node and received by the egress node, and header compression means, in the ingress node, adapted for compressing the header of each packet following the predetermined number of uncompressed data packets before transmitting it through the data transmission network, the compression being achieved by using the compression template.
摘要翻译： 标题压缩系统，用于压缩通过数据传输网络从入口节点传送到出口节点的流的数据分组的报头，包括模板创建装置，在入口节点和出口节点中适于从一个 在入口节点分别由入口节点发送并由出口节点接收的流的开始处的预定数量的未压缩数据分组和头部压缩装置，适用于压缩预定数量的未压缩数据之后的每个分组的报头 数据包在通过数据传输网络传输之前，通过使用压缩模板来实现压缩。
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87.发明授权Multipoint server for providing secure, scaleable connections between a plurality of network devices 有权多点服务器，用于在多个网络设备之间提供安全，可扩展的连接公开(公告)号：US07987507B2
公开(公告)日：2011-07-26
申请号：US12489500
申请日：2009-06-23
IPC分类号： G06F15/16
CPC分类号： H04L63/0272 , H04L63/065 , H04L63/08 , H04L63/164
摘要： A method and system for implementing secure communications between a plurality of devices are provided. The method and system generally include the provision of at least one common encryption parameter to each of the plurality of devices, as well as an identification of the plurality of devices to one another. This information can be maintained and shared by interaction of the plurality of devices with a designated server device. In this way, a secure, point-to-point connection between at least two of the plurality of devices can be established.
摘要翻译： 提供了用于实现多个设备之间的安全通信的方法和系统。 该方法和系统通常包括向多个设备中的每一个提供至少一个公共加密参数，以及将多个设备彼此的标识。 可以通过多个设备与指定的服务器设备的交互来维护和共享该信息。 以这种方式，可以建立多个设备中的至少两个之间的安全的点对点连接。
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88.发明授权Method for transmitting high-priority packets in an IP transmission network 有权用于在IP传输网络中传输高优先级分组的方法公开(公告)号：US07558269B2
公开(公告)日：2009-07-07
申请号：US10638898
申请日：2003-08-11
IPC分类号： H04L12/28
CPC分类号： H04L47/2416 , H04L47/10 , H04L47/2408 , H04L47/245
摘要： Method for transmitting high-priority packets in an IP transmission network based upon the Internet Protocol (IP) wherein low-priority packets or fragments of packets are transmitted between a sender and a receiver and at least a high-priority packet can be transmitted from the sender to the receiver by pre-emption of a low-priority packet or a fragment of packet. the method comprises in the sender, the steps of determining whether a low-priority packet or fragment of packet is being transmitted from the sender to the receiver when a high-priority packet has to be transmitted, setting to 1 a reserved bit within the IP header of the high-priority packet used as a pre-emption indicator if a low-priority packet or fragment of packet is currently transmitted, transmitting the high-priority packet with the pre-emption indicator set to 1 from the sender to the receiver, and resuming the transmission of the low-priority packet or fragment of packet at the end of transmission of the high-priority packet.
摘要翻译： 基于互联网协议（IP）在IP传输网络中发送高优先级分组的方法，其中低优先级分组或分组在发送方和接收方之间传送，并且至少高优先级分组可以从 发送方通过优先级低优先级的数据包或数据包的片段来发送给接收方。 所述方法包括在发送方中，当高优先级分组必须被发送时，确定低优先级分组或分组是否正在从发送方发送到接收方，将该IP优先级设置为1 如果当前正在发送低优先级分组或分组片段，则用作优先级指示符的高优先级分组的报头，将优先级分组以从发送方设置为1的优先级分组发送到接收方， 并且在高优先级分组的传输结束时恢复低优先级分组或分组分段的传输。
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公开(公告)号：US20080192930A1
公开(公告)日：2008-08-14
申请号：US12105756
申请日：2008-04-18
IPC分类号： H04L9/14
CPC分类号： H04L63/0209 , H04L63/0272 , H04L63/0435 , H04L63/0464
摘要： A method and system for implementing secure network communications between a first device and a second device, at least one of the devices communicating with the other device via a firewall device, are provided. The method and system may include obtaining an encryption parameter that is shared by the first device, second device and firewall device. A data packet sent by the first device may then be copied within the firewall device, so that decryption of the copy of the data packet within a portion of the firewall device may take place. In particular, the portion of the firewall device in which decryption takes place is defined such that contents of the portion are inaccessible to an operator of the firewall device. Thus. scanning of the decrypted copy of the data packet for compliance with a predetermined criterion may take place within the firewall device, without an operator of the firewall device having access to the contents of the data packet to be transmitted. Thereafter, the original data packet can be forwarded to its originally intended recipient.
摘要翻译： 提供了一种用于在第一设备和第二设备之间实现安全网络通信的方法和系统，至少一个设备经由防火墙设备与另一设备通信。 该方法和系统可以包括获得由第一设备，第二设备和防火墙设备共享的加密参数。 然后可以在防火墙设备内复制由第一设备发送的数据分组，从而可以在防火墙设备的一部分内对数据分组的副本进行解密。 特别地，定义防火墙设备中发生解密的部分，使得该部分的内容对于防火墙设备的操作者是不可访问的。 从而。 扫描数据包的解密副本以符合预定标准可以在防火墙设备内进行，而防火墙设备的操作者可以访问要发送的数据包的内容。 此后，可以将原始数据分组转发到其原始的接收者。
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公开(公告)号：US06950424B2
公开(公告)日：2005-09-27
申请号：US09901441
申请日：2001-07-09
IPC分类号： H04L12/715 , H04L12/751 , H04L12/28
摘要： Data communication system of the type wherein a plurality of contiguous transmission networks constitute an Autonomous System (AS) using the Open Shortest Path First (OSPF) protocol for the exchange of information. The system is divided into several areas including an area 0 or backbone responsible for distributing routing information between the other areas. The backbone is divided into two sub-areas and comprises at least a pair of adjacent splitting routers. The first splitting router is included in one sub-area and the second splitting router is included in the other sub-area. The topological data base of each splitting router is configured to define a high metric for the link between the splitting routers in order to prevent any type of data traffic other than link-state messages (LSA) from being transmitted between the splitting routers.
摘要翻译： 数据通信系统，其中多个连续的传输网络使用开放最短路径优先（OSPF）协议构成自治系统（AS）来进行信息交换。 该系统分为几个区域，包括负责在其他区域之间分配路由信息的区域0或骨干网。 主干被分成两个子区域，并且包括至少一对相邻的分离路由器。 第一分裂路由器被包括在一个子区域中，并且第二分裂路由器被包括在另一个子区域中。 每个分裂路由器的拓扑数据库被配置为为分裂路由器之间的链路定义高度量，以便防止在分离路由器之间传输除链路状态消息（LSA）之外的任何类型的数据流量。
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