公开(公告)号：US20060193326A1

公开(公告)日：2006-08-31

申请号：US11379915

申请日：2006-04-24

申请人： Tomoharu Shimanuki ,  Ken Shiraishi

发明人： Tomoharu Shimanuki ,  Ken Shiraishi

IPC分类号： H04L12/56

CPC分类号： H04L12/2854 ,  H04L12/5601 ,  H04L2012/5618 ,  H04L2012/5654 ,  H04L2012/5665 ,  H04L2012/5674 ,  H04Q11/0478

摘要： Upon receipt of a synchronization request from the CPU, the AAL1 device of the act system causes its cell forming section to extract the allocation position information for the SAR-PDU payload about a particular time slot in the current frame and, via the synchronization information send/receive section, transfers the information to the AAL1 device of the standby system. The AAL1 device of the standby system causes its operation processing section to calculate the allocation position of a particular time slot in the next frame for the SAR-PDU payload based on the above allocation position information. The AAL1 device of the standby system starts allocation of the data of and following a particular time slot of the next frame to the SAR-PDU payload starting from the position indicated by the calculation result.

摘要翻译： 在从CPU接收到同步请求时，动作系统的AAL 1设备使其小区形成部分提取关于当前帧中的特定时隙的SAR-PDU有效载荷的分配位置信息，并且经由同步信息 发送/接收部分，将信息传送到备用系统的AAL 1设备。 备用系统的AAL 1设备使其操作处理部分基于上述分配位置信息计算SAR-PDU有效载荷的下一帧中的特定时隙的分配位置。 备用系统的AAL 1设备开始从计算结果指示的位置开始分配下一帧的特定时隙的数据并将其跟随到SAR-PDU有效载荷。

公开(公告)号：US06947374B2

公开(公告)日：2005-09-20

申请号：US09808091

申请日：2001-03-14

申请人： Taisuke Sasaki ,  Yoshihiro Watanabe ,  Takao Yoshida ,  Yoshihiro Uchida ,  Yuji Tazaki

发明人： Taisuke Sasaki ,  Yoshihiro Watanabe ,  Takao Yoshida ,  Yoshihiro Uchida ,  Yuji Tazaki

IPC分类号： H04L12/56 ,  H04Q11/04 ,  G01R31/08

CPC分类号： H04Q11/0478 ,  H04L2012/562 ,  H04L2012/5627 ,  H04L2012/5654

摘要： In a connection oriented mode communication system, a communication connection is established as an alternative connection substitutive for a currently working communication connection so that the alternative connection connects the couple of node apparatus connected through the currently working communication connection to each other by way of a route physically different from that of the currently working communication connection. According to the above arrangement, it becomes possible to carry out maintenance, moving of facility or the like of a network including the currently working connection without interrupting the service which is provided through the currently working connection.

摘要翻译： 在面向连接的模式通信系统中，建立通信连接作为对当前工作的通信连接的替代连接的替代，使得替代连接通过路由将通过当前工作的通信连接连接的节点设备连接到彼此 与当前工作的通信连接的物理上不同。 根据上述结构，可以进行包括当前正在工作的连接的网络的设备的维护，移动等，而不会中断通过当前工作连接提供的服务。

公开(公告)号：US06836515B1

公开(公告)日：2004-12-28

申请号：US09360209

申请日：1999-07-23

申请人： Stanley E. Kay ,  John E. Corrigan, III ,  Bala Subramaniam ,  Harry M. Johnson ,  Donald S. Arnstein

发明人： Stanley E. Kay ,  John E. Corrigan, III ,  Bala Subramaniam ,  Harry M. Johnson ,  Donald S. Arnstein

IPC分类号： H04L2700

CPC分类号： H04L27/0008 ,  H04B1/406 ,  H04B7/2656 ,  H04J2203/0035 ,  H04J2203/0089 ,  H04L12/5601 ,  H04L12/6418 ,  H04L49/455 ,  H04L49/90 ,  H04L49/9094 ,  H04L2012/5607 ,  H04L2012/5613 ,  H04L2012/5654 ,  H04L2012/5663 ,  H04L2012/5665 ,  H04L2012/5672 ,  H04L2012/5675 ,  H04Q11/0478 ,  H04W88/02

摘要： A radio, and related methods of radio communication, consisting of a multi-modulation modem, wherein the multi-modulation modem that modulates and demodulates signals using a plurality of modulations. The radio also comprises a frequency converter coupled to the multi-modulation modem for converting the signals to a radio frequency and a transceiver unit including an antenna coupled to the frequency converter for transmitting the signals over a radio communications link. The multi-modulation modem includes a modulator that includes a modulation selector unit that selects respective ones of the plurality of modulations to modulate the signals. The multi-modulation modem also includes a demodulator for demodulating the signals having been modulated using the plurality of modulations.

摘要翻译： 一种由多调制调制解调器组成的无线电通信的无线电和相关方法，其中所述多调制调制解调器使用多个调制来调制和解调信号。 无线电还包括耦合到多调制调制解调器的频率转换器，用于将信号转换成无线电频率，收发机单元包括耦合到频率转换器的天线，用于通过无线电通信链路传输信号。 多调制调制解调器包括调制器，其包括调制选择器单元，其选择多个调制中的相应调制来调制信号。 多调制调制解调器还包括用于解调已经使用多个调制调制的信号的解调器。

公开(公告)号：US06747977B1

公开(公告)日：2004-06-08

申请号：US09437063

申请日：1999-11-09

申请人： Roger Smith ,  Simon Daniel Brueckheimer ,  Fai Tsang

发明人： Roger Smith ,  Simon Daniel Brueckheimer ,  Fai Tsang

IPC分类号： H04L1256

CPC分类号： H04L12/5601 ,  H04L2012/5652 ,  H04L2012/5654 ,  H04L2012/5664 ,  H04L2012/5667 ,  H04L2012/5671

摘要： To obviate inefficient use of bandwidth in a packetised system, such as a broadband ATM domain, the use or amount of header information sent in relation to a channel is restricted by one of two principal mechanisms, as exemplified in FIGS. 3 and 4. First, control information incident to a packet interface (20) is interrogated by a processor (21) to determine (50) packet length requirements. A packet length indicator is then generated (52) for inclusion within a header (44) of a packet. Alternatively, a frame (30) is pre-partitioned (60) into several packets (32-42) having different lengths. An addressed subscriber unit (28) is allocated (64) a particular channel, i.e. at least one particular packet within the frame (30), based on data throughput requirements (62), whereby the location of the packet within the frame inherently identifies the length of the packet. Optionally, the data rate used within that packet may also be identified inherently by the location of the packet within the frame (30).

摘要翻译： 为了避免诸如宽带ATM域之类的分组化系统中的带宽的低效使用，相对于信道发送的报头信息的使用或数量被两个主要机制之一限制，如图1和2所示。 首先，由处理器（21）询问入站到分组接口（20）的控制信息，以确定（50）分组长度要求。 然后生成分组长度指示符（52）以包括在分组的报头（44）内。 或者，帧（30）被预分区（60）成具有不同长度的数个分组（32-42）。 基于数据吞吐量要求（62），寻址订户单元（28）被分配（64）特定信道，即帧（30）内的至少一个特定分组（62），由此分组在帧内的位置固有地标识 数据包的长度。 可选地，在该分组内使用的数据速率也可以由分组在帧（30）内的位置固有地识别。

公开(公告)号：US06650649B1

公开(公告)日：2003-11-18

申请号：US09359832

申请日：1999-07-23

申请人： Tariq Muhammad ,  Mike S. Lohman

发明人： Tariq Muhammad ,  Mike S. Lohman

IPC分类号： H04L1256

CPC分类号： H04L27/0008 ,  H04B1/406 ,  H04B7/2656 ,  H04J2203/0035 ,  H04J2203/0089 ,  H04L12/5601 ,  H04L12/6418 ,  H04L49/455 ,  H04L49/90 ,  H04L49/9094 ,  H04L2012/5607 ,  H04L2012/5613 ,  H04L2012/5654 ,  H04L2012/5663 ,  H04L2012/5665 ,  H04L2012/5672 ,  H04L2012/5675 ,  H04Q11/0478 ,  H04W88/02

摘要： An extension system, and related methods, for extending the location of interfaces and expanding the number of interface modules that interface with a communications system. The system includes a communications terminal including a first multi-transport mode bus that carries signals comprising a plurality of transport mode signals, a plurality of interface ports coupled to the first multi-transport mode bus, and a first extension interface mode coupled to one of the plurality of interface ports, wherein the first extension interface module converts the transmission format of the signals to a transmission format of an extension communications link. The system further includes the extension communications link coupled to the first extension interface module, wherein the extension communications link functions as an extension of the first multi-transport mode bus, a second extension interface module coupled to the extension communications link, an extension unit coupled to the second extension interface module containing a second multi-transport mode bus, wherein the second multi-transport mode bus carries the signals, and a plurality of expansion interface ports coupled to the second multi-transport mode bus of the extension unit.

摘要翻译： 扩展系统和相关方法，用于扩展接口的位置，并扩展与通信系统接口的接口模块数量。 该系统包括通信终端，其包括承载包括多个传输模式信号的信号的第一多传输模式总线，耦合到第一多传输模式总线的多个接口端口以及耦合到第一扩展接口模式之一 所述多个接口端口，其中所述第一扩展接口模块将所述信号的传输格式转换为扩展通信链路的传输格式。 该系统还包括耦合到第一扩展接口模块的扩展通信链路，其中扩展通信链路用作第一多传输模式总线的扩展，耦合到扩展通信链路的第二扩展接口模块，耦合到扩展通信链路 到包含第二多传输模式总线的第二扩展接口模块，其中第二多传输模式总线承载信号，以及耦合到扩展单元的第二多传输模式总线的多个扩展接口端口。

公开(公告)号：US06618399B1

公开(公告)日：2003-09-09

申请号：US09428303

申请日：1999-10-27

申请人： Kenneth M. Buckland ,  Barry W. Field

发明人： Kenneth M. Buckland ,  Barry W. Field

IPC分类号： H04J306

CPC分类号： H04L12/5601 ,  H04L2012/5649 ,  H04L2012/5654

摘要： A system and method for transporting telephony signals across an ATM network using AAL1 while eliminating the jitter associated with the AAL1 cells. The present invention uses starve/inspect techniques to dynamically buffer the ATM frames such that jitter associated with the cells can be reduced while avoiding unneeded buffering that would cause excessive delay.

摘要翻译： 一种用于通过AAL1在ATM网络上传送电话信号的系统和方法，同时消除与AAL1小区相关联的抖动。 本发明使用饥饿/检查技术来动态缓冲ATM帧，使得可以减少与小区相关联的抖动，同时避免不必要的缓冲，这将导致过多的延迟。

公开(公告)号：US20020044620A1

公开(公告)日：2002-04-18

申请号：US09735944

申请日：2000-12-14

发明人： Menno Spijker ,  George Jeffery

IPC分类号： H04L007/00 ,  H04L025/00 ,  H04L025/40 ,  H04J003/06 ,  H03L007/06

CPC分类号： H04J3/0697 ,  H03L7/085 ,  H03L7/087 ,  H03L7/0994 ,  H04J3/0632 ,  H04J3/0685 ,  H04L7/033 ,  H04L2012/5616 ,  H04L2012/5627 ,  H04L2012/5654 ,  H04L2012/5674 ,  H04Q11/0478

摘要： A multimode clock recovery circuit for providing constant bit rate services in a cell relay network has an embedded digital phase locked loop including an input circuit capable of generating a phase signal from at least two types of input signal. The phase signal controlling the output of the phase locked loop generates clock signals for the constant bit rate services.

摘要翻译： 用于在小区中继网络中提供恒定比特率服务的多模式时钟恢复电路具有嵌入式数字锁相环，其包括能够从至少两种类型的输入信号产生相位信号的输入电路。 控制锁相环输出的相位信号产生恒定比特率服务的时钟信号。

公开(公告)号：US20010036153A1

公开(公告)日：2001-11-01

申请号：US09808091

申请日：2001-03-14

发明人： Taisuke Sasaki ,  Yoshihiro Watanabe ,  Takao Yoshida ,  Yoshihiro Uchida ,  Yuji Tazaki

IPC分类号： H04J003/14 ,  H04L012/26 ,  H04L012/28 ,  H04L012/56

CPC分类号： H04Q11/0478 ,  H04L2012/562 ,  H04L2012/5627 ,  H04L2012/5654

摘要： In a connection oriented mode communication system, a communication connection is established as an alternative connection substitutive for a currently working communication connection so that the alternative connection connects the couple of node apparatus connected through the currently working communication connection to each other by way of a route physically different from that of the currently working communication connection. According to the above arrangement, it becomes possible to carry out maintenance, moving of facility or the like of a network including the currently working connection without interrupting the service which is provided through the currently working connection.

摘要翻译： 在面向连接的模式通信系统中，建立通信连接作为对当前工作的通信连接的替代连接的替代，使得替代连接通过路由将通过当前工作的通信连接连接的节点设备连接到彼此 与当前工作的通信连接的物理上不同。 根据上述结构，可以进行包括当前正在工作的连接的网络的设备的维护，移动等，而不会中断通过当前工作连接提供的服务。

公开(公告)号：US06198752B1

公开(公告)日：2001-03-06

申请号：US09223397

申请日：1998-12-30

申请人： Hae-Yeong Lee

发明人： Hae-Yeong Lee

IPC分类号： H04J324

CPC分类号： H04N7/148 ,  H04L12/66 ,  H04L2012/5616 ,  H04L2012/5618 ,  H04L2012/5654 ,  H04L2012/5658 ,  H04L2012/5664 ,  H04L2012/5669 ,  H04Q11/0478

摘要： An ATM video telephone terminal interworking with ISDN is provided for circuit switching network emulation on AAL-5 for a video telephone service. The ATM video telephone terminal includes a circuit switching network emulation portion. In the circuit switching network emulation portion, ATM transmission and reception cell buffers are connected to a network interface card by a personal computer peripheral component interconnect (PC PCI) bus and connected to a video telephone media portion, for buffering video telephone data transmitted and received between the network interface card and the video telephone media portion. A half fill detector determines whether the ATM reception cell buffer is half filled by received cell. A counter periodically counts reference clock pulses for cell clock generation up to an externally controllable maximum count value. A cell clock generator generates a cell clock signal upon completion of counting the reference clock pulses up to the maximum count value in the counter, provides the cell clock signal to the ATM transmission and reception cell buffers, and controls the maximum count value of the counter depending on the determination of the half fill detector.

摘要翻译： 提供与ISDN互通的ATM视频电话终端用于视频电话业务的AAL-5上的电路交换网络仿真。 ATM视频电话终端包括电路交换网络仿真部分。 在电路交换网络仿真部分中，ATM发送和接收小区缓冲器通过个人计算机外围组件互连（PC PCI）总线连接到网络接口卡，并连接到视频电话媒体部分，用于缓冲发送和接收的视频电话数据 在网络接口卡和视频电话媒体部分之间。 一半填充检测器确定ATM接收单元缓冲器是否被接收到的单元填充一半。 计数器周期性地计数用于单元时钟生成的参考时钟脉冲，直到外部可控的最大计数值。 单元时钟发生器在完成对计数器中的最大计数值的基准时钟脉冲计数完成时产生单元时钟信号，将单元时钟信号提供给ATM发送和接收单元缓冲器，并且控制计数器的最大计数值 这取决于半填充检测器的确定。

公开(公告)号：US06178184B1

公开(公告)日：2001-01-23

申请号：US09209712

申请日：1998-12-11

申请人： Norman W. Petty

发明人： Norman W. Petty

IPC分类号： H04J306

CPC分类号： H04Q11/0478 ,  H04L2012/5654 ,  H04L2012/5675

摘要： An ATM cell constructor (100) of an ATM transmitter assembles a stream of frames of constant bit-rate traffic received on a listen TDM bus (102) into cell payloads (1104) using ATM adaptation layer 1 (AAL1). Once every eight cells, the AAL1 structured data transfer (SDT) cell constructor layer (112) introduces a one-octet SDT offset pointer (1120) into the payload. This pointer designates traffic-block (TDM frame) boundaries. The payload with an attached ATM header forms an ATM cell, and the constructor transmits a stream of the ATM cells to an ATM cell deconstructor (2100) of an ATM receiver. The deconstructor disassembles the payloads of the received ATM cells and transmits the stream of frames of constant bit-rate traffic on a talk TDM bus (102). In response to each received SDT offset pointer, the deconstructor's time slot interchanger (TSI 2108) resets to the start of frame-processing, thereby aligning frames formed by the TSI with the received frames. The deconstructor (2100:2104) detects occurrence of TDM frames on the talk TDM bus and synchronizes (aligns) transmission of the frames formed by the TSI with the TDM frames on the talk TDM bus. The listen and talk TDM buses are thereby synchronized with each other.

摘要翻译： ATM发送器的ATM信元构造器（100）使用ATM适配层1（AAL1）将在监听TDM总线（102）上接收的恒定比特率流量的帧流组合成小区有效载荷（1104）。 每八个单元一次，AAL1结构化数据传输（SDT）单元构造器层（112）将一个八位位组SDT偏移指针（1120）引入有效载荷。 该指针指定业务块（TDM帧）边界。 具有连接的ATM报头的有效载荷形成ATM信元，并且构造器将ATM信元的数据流发送到ATM接收器的ATM信元解构器（2100）。 解构器拆卸所接收的ATM信元的有效载荷，并在通话TDM总线（102）上发送恒定比特流量的帧流。 响应于每个接收到的SDT偏移指针，解构器的时隙交换器（TSI 2108）复位到帧处理的开始，从而将由TSI形成的帧与接收的帧对准。 解构器（2100：2104）检测通话TDM总线上的TDM帧的发生，并且将由TSI形成的帧与通话TDM总线上的TDM帧进行同步（对齐）传输。 听和说的TDM总线由此彼此同步。