公开(公告)号：US06683887B1

公开(公告)日：2004-01-27

申请号：US09465352

申请日：1999-12-16

申请人： Tony Huang ,  Prakash Appanna ,  Jensheng Lee ,  Hamid Baradaran ,  Hans Christian Mogensen ,  James Lotz ,  Tom Kwang-Tsai Koai ,  Osama Bahgat

发明人： Tony Huang ,  Prakash Appanna ,  Jensheng Lee ,  Hamid Baradaran ,  Hans Christian Mogensen ,  James Lotz ,  Tom Kwang-Tsai Koai ,  Osama Bahgat

IPC分类号： H04J316

CPC分类号： H04M11/062

摘要： An asymmetrical digital subscriber line (ADSL) downstream high speed cell bus interface protocol allows ADSL cell packets to be transmitted downstream from an ADSL bank control unit (ABCU) to a plurality of ADSL line units at a high rate of downstream throughput with flexible and efficient allocation of bandwidths and reduced error probability. The frame boundaries of an ADSL frame are derived from a conventional subscriber bus interface (SBI) frame for carrying conventional narrowband plain old telephone service (POTS) traffic, thereby allowing the ABCU and the ADSL line units to be implemented in existing channel banks with standard channel bank backplane traces.

摘要翻译： 不对称的数字用户线（ADSL）下行高速信元总线接口协议允许ADSL信元分组从ADSL组控制单元（ABCU）向下游传输到多个ADSL线路单元，并具有高速率的下行吞吐量，灵活高效 带宽分配和误差概率降低。 ADSL帧的帧边界是从传统的用户总线接口（SBI）帧导出的，用于承载传统的窄带普通老式电话服务（POTS）业务，从而允许ABCU和ADSL线路单元在标准的现有信道组中实现 通道库背板走线。

公开(公告)号：US06501766B1

公开(公告)日：2002-12-31

申请号：US09050246

申请日：1998-03-30

申请人： Melhem I. Chaar ,  George F. Irwin ,  James L. Watchorn ,  David A. Fisher ,  Michael F. Kemp ,  Osama Bahgat

发明人： Melhem I. Chaar ,  George F. Irwin ,  James L. Watchorn ,  David A. Fisher ,  Michael F. Kemp ,  Osama Bahgat

IPC分类号： H04L1240

CPC分类号： G06F13/387

摘要： A communication system consisting of a number of modules that communicate with one another through a shared communications bus which accommodates different protocols. The system includes a bus clock for defining a frame having a plurality of time slots for communicating signals on the bus; and a bus management algorithm for specifying a receive assignment definition and a transmit assignment definition. The receive assignment definition defines a receive channel for each of the modules representing a set of the time slots, where the modules receive signals from the bus during the set of time slots prescribed by the receive channel. The transmit assignment definition defines a transmit channel for each of the modules representing a set of the time slots, where the modules transmit signals to the bus during the set of time slots prescribed by the transmit channel.

摘要翻译： 由多个通过共享通信总线相互通信的模块组成的通信系统，该通信总线适应不同的协议。 该系统包括用于定义具有用于在总线上传送信号的多个时隙的帧的总线时钟; 以及用于指定接收分配定义和发送分配定义的总线管理算法。 接收分配定义定义了代表一组时隙的每个模块的接收信道，其中模块在由接收信道规定的时隙集合期间从总线接收信号。 发射分配定义定义了代表一组时隙的每个模块的发射信道，其中模块在发射信道规定的时隙集合期间向总线发送信号。

公开(公告)号：US06262985B1

公开(公告)日：2001-07-17

申请号：US09050129

申请日：1998-03-30

申请人： Tony Huang ,  John Edward Vincent ,  James Leslie Watchorn ,  Paul Fong-Yan Hung ,  Osama Bahgat ,  Gary Depelteau ,  James McLaughlin

发明人： Tony Huang ,  John Edward Vincent ,  James Leslie Watchorn ,  Paul Fong-Yan Hung ,  Osama Bahgat ,  Gary Depelteau ,  James McLaughlin

IPC分类号： H04L1250

CPC分类号： H04L49/309 ,  H04L45/742 ,  H04Q11/0478

摘要： Methods and apparatus are described for translating identifiers that are used by computers to reference various entities such as data structures, external objects, or connections in a telecommunications network, from a bulkier less manageable format to a smaller more manageable format. Such translations are carried out to reduce the needless processing and memory demands that are made of a localized set of components when the large identifiers the set receives from other components include fields that none of the members of the set need to access. The invention is centerd around a two-stage look-up method wherein an inputted external identifier is divided into two parts. The first part of the inputted external identifier is used as an address into a first look-up table that contains base-addresses of a second look-up table. The second part of the inputted external identifier is used as an offset-address into the second look-up table. The offset-address and the base-address are combined to access the second look-up table, which contains all the internal identifiers. The invention can be easily scaled to handle a larger range of external identifiers, and a larger number of internal identifiers. The invention operates at a fast and predictable speed. Use of the invention also leads to a significant savings in memory costs.

摘要翻译： 描述了用于翻译计算机使用的标识符的方法和装置，以引用各种实体，例如电信网络中的数据结构，外部对象或连接，从庞大的较不易管理的格式到更小的更易于管理的格式。 执行这样的翻译以减少当集合从其他组件接收到的大标识符包括集合中的任何成员都不需要访问的字段时，由本地化的组件集合形成的不必要的处理和存储器需求。 本发明围绕两阶段查找方法，其中输入的外部标识符被分成两部分。 输入的外部标识符的第一部分用作包含第二查找表的基地址的第一查找表中的地址。 输入的外部标识符的第二部分用作第二查找表中的偏移地址。 偏移地址和基地址被组合以访问包含所有内部标识符的第二查找表。 本发明可以容易地缩放以处理更大范围的外部标识符和更大数量的内部标识符。 本发明以快速且可预测的速度运行。 使用本发明还可显着节省存储器成本。