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101. 发明授权

US6049550A Integrated digital loop carrier system with virtual tributary mapper circuit 失效
标题翻译：具有虚拟支路映射器电路的集成数字环路载波系统
公开(公告)号：US6049550A
公开(公告)日：2000-04-11
申请号：US28750
申请日：1998-02-24
申请人： Ertugrul Baydar , J. Bradley Boudreaux , Nicholas Carter , Chung Chen , Steven Klonsky , Michael Moran , Peter Renucci , Jeffrey Timbs , Thomas Tucker , Waleed Wardak
发明人： Ertugrul Baydar , J. Bradley Boudreaux , Nicholas Carter , Chung Chen , Steven Klonsky , Michael Moran , Peter Renucci , Jeffrey Timbs , Thomas Tucker , Waleed Wardak
IPC分类号： H04J3/16 , H04L12/24 , H04Q3/00 , H04Q11/04 , H04J3/02
CPC分类号： H04L41/0213 , H04J3/1611 , H04L41/0226 , H04L41/046 , H04Q11/0407 , H04Q3/0095 , H04J2203/0028 , H04J2203/0041 , H04J2203/0046 , H04J2203/0048 , H04J2203/006 , H04Q2213/13003 , H04Q2213/1301 , H04Q2213/13106 , H04Q2213/13176 , H04Q2213/13209 , H04Q2213/13292 , H04Q2213/1332 , H04Q2213/13367 , H04Q2213/13381
摘要： An integrated digital loop carrier (IDLC) system includes digital line feeders and signal processors to interface with the feeders and to ultimately provide data to subscriber instruments. The system can be employed as a central office terminal (COT) or remote digital terminal (RDT) with analog, T1 or SONET feeders and any conventional link medium. Data are put in DS1 format and multiplexed onto token ring optical loops for delivery to banks of channel units wherein the optical signals are translated to electrical signals for delivery to the CUs and subscribers. A method and apparatus is provided for mapping and demapping signals between virtual tributaries (VT) and digital signal formats in the RDT of an integrated digital loop carrier. An application-specific circuit provides such mapping and demapping functions as Floating Byte Synchronous VT to Locked Byte Synchronous VT, Floating Asynchronous VT to Locked Byte Synchronous VT, Floating Asynchronous VT to Floating Asynchronous VT, DS1 to Locked Byte Synchronous VT, DS1 to Floating Asynchronous VT, and DS1 to Floating Byte Synchronous VT.
摘要翻译：集成数字环路载波（IDLC）系统包括数字线路馈线和信号处理器，与馈线接口并最终向用户设备提供数据。该系统可以用作具有模拟，T1或SONET馈线和任何常规链路介质的中心局终端（COT）或远程数字终端（RDT）。数据采用DS1格式并复用到令牌环光环路上，用于传送到信道单元组，其中光信号被转换为电信号以传送到CU和用户。提供了一种用于在集成数字环路载波的RDT中的虚拟支路（VT）和数字信号格式之间映射和解映射信号的方法和装置。应用专用电路提供浮动字节同步VT到锁定字节同步VT，浮动异步VT到锁定字节同步VT，浮动异步VT到浮动异步VT，DS1到锁定字节同步VT，DS1到浮动异步的映射和解映射功能 VT和DS1到浮点字节同步VT。

102. 发明授权

US5519863A Notification forwarding discriminator 失效
标题翻译：通知转发鉴别器
公开(公告)号：US5519863A
公开(公告)日：1996-05-21
申请号：US309835
申请日：1994-09-21
申请人： Wade C. Allen , Mark C. Zelek
发明人： Wade C. Allen , Mark C. Zelek
IPC分类号： G06F9/46 , H04Q3/00
CPC分类号： G06F9/542 , H04Q3/0095
摘要： Problems with prior OSI (Open Systems Interconnected) event forwarding discriminators (EFD) are solved in accordance with this invention by creating a new type of EFD, called a notification forwarding discriminator (NFD). An NFD works just like an EFD in that it receives notifications emitted by managed objects and determines what types of notifications should be forwarded. However, the forwarding mechanism in an NFD is completely different. An NFD has two operations that a management application can use to control subscription to notifications, "start" and "stop". An NFD forwards notifications via responses to a solicited "start" operation without signaling the end of the "start" operation. Hence, a "start" operation will always be pending completion. The manager and agent track this pending status of operations between a manager and an NFD. Both the manager and agent maintain a pending completion list for each link between a manager and agent. There is a one-to-one correspondence between each manager and the link over which requests go to a given NFD through an agent. Multiple applications using the manager may send multiple start operation requests through the manager, through the agent and to the NFD.
摘要翻译：根据本发明，通过创建称为通知转发鉴别器（NFD）的新型EFD来解决先前的OSI（开放系统互连）事件转发鉴别器（EFD）的问题。 NFD的作用就像一个EFD，它接收到被管理对象发出的通知，并确定应该转发什么类型的通知。然而，NFD中的转发机制是完全不同的。 NFD有两个操作，管理应用程序可以用来控制订阅通知，“开始”和“停止”。 NFD通过响应转发通知，提示“开始”操作，而不会发出“开始”操作的结束。因此，“开始”操作将始终处于待完成状态。经理和代理人跟踪经理和NFD之间的待处理状态。管理者和代理人都会为管理员和代理之间的每个链接维护待处理的完成列表。每个经理和通过代理向特定NFD发出请求的链接之间有一对一的对应关系。使用管理员的多个应用程序可以通过管理员，通过代理和NFD发送多个启动操作请求。

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