公开(公告)号：US08010992B1

公开(公告)日：2011-08-30

申请号：US12892903

申请日：2010-09-28

申请人： Sin-Min Chang ,  William Bartholomay ,  Santanu Das ,  Arun Sengupta

发明人： Sin-Min Chang ,  William Bartholomay ,  Santanu Das ,  Arun Sengupta

IPC分类号： G06F17/00

CPC分类号： H04L67/2819 ,  H04L63/20 ,  H04L67/2838

摘要： Systems, devices, and methods are disclosed for providing increased security when multiplexing one or more services at customer premises. Such systems and devices may include one or more virtual machines that support a service, a service operating system, protocol functions, and protocol security functions including system, devices, and methods for, analyzing protocol data and generating protocol security data. In addition, the system, devices, and methods provide an administration function for each virtual machine that allows monitoring the protocol security data and provides a protocol alerting mechanism that reports protocol security trigger events. Moreover, the system, devices, and methods have a common layer providing a common operating system and common security functions. The protocol security functions and common security function utilize conventional and fuzzy logic rules to generate protocol security data and common security data.

摘要翻译： 公开了系统，设备和方法，用于在客户住宅处复用一个或多个服务时提供增加的安全性。 这样的系统和设备可以包括支持服务的一个或多个虚拟机，服务操作系统，协议功能和协议安全功能，包括用于分析协议数据和生成协议安全数据的系统，设备和方法。 此外，系统，设备和方法为每个虚拟机提供管理功能，允许监视协议安全数据，并提供报告协议安全触发事件的协议报警机制。 此外，系统，设备和方法具有共同的层，提供通用的操作系统和通用的安全功能。 协议安全功能和通用安全功能利用常规和模糊逻辑规则来生成协议安全数据和通用安全数据。

公开(公告)号：US06646983B1

公开(公告)日：2003-11-11

申请号：US09717998

申请日：2000-11-21

申请人： Subhash C. Roy ,  Santanu Das ,  Daniel C. Upp ,  William B. Lipp ,  Jitender K. Vij ,  Michael M. Renault

发明人： Subhash C. Roy ,  Santanu Das ,  Daniel C. Upp ,  William B. Lipp ,  Jitender K. Vij ,  Michael M. Renault

IPC分类号： H04J314

CPC分类号： H04L12/6402 ,  H04L2012/6413

摘要： A network switch includes at least one port processor and at least one switch element. The port processor has an SONET OC-x interface (for TDM traffic), a UTOPIA interface (for ATM and packet traffic), and an interface to the switch element. In one embodiment, the port processor has a total I/O bandwidth equivalent to an OC-48, and the switch element has 12×12 ports for a total bandwidth of 30 Gbps. A typical switch includes multiple port processors and switch elements. A data frame of 9 rows by 1700 slots is used to transport ATM, TDM, and Packet data from a port processor through one or more switch elements to the same or another port processor. Each frame is transmitted in 125 microseconds; each row in 13.89 microseconds. Each slot includes a 4-bit tag plus a 4-byte payload. The slot bandwidth is 2.592 Mbps which is large enough to carry an E-1 signal with overhead. The 4-bit tag is a cross connect pointer which is setup when a TDM connection is provisioned. The last twenty slots of the frame are reserved for link overhead. Thus, the frame is capable of carrying the equivalent of 1,680 E-1 TDM signals. For ATM and packet data, a PDU (protocol data unit) of 16 slots is defined for a 64-byte payload. The PDUs are self-routed through the switch with a 28-bit routing tag which allows routing through seven switch stages using 4-bits per stage. Bandwidth is arbitrated among ATM and Packet connections while maintaining TDM timing.

摘要翻译： 网络交换机包括至少一个端口处理器和至少一个开关元件。 端口处理器具有SONET OC-x接口（用于TDM流量），UTOPIA接口（用于ATM和数据包流量）以及与交换机元件的接口。 在一个实施例中，端口处理器具有等同于OC-48的总I / O带宽，并且交换单元具有12×12端口，总带宽为30Gbps。 典型的交换机包括多个端口处理器和交换机元件。 使用9行×1700个时隙的数据帧将ATM，TDM和分组数据从端口处理器通过一个或多个交换元件传输到相同或另一个端口处理器。 每帧在125微秒内传输; 每行在13.89微秒。 每个插槽包括一个4位标签加上一个4字节的有效载荷。 时隙带宽为2.592Mbps，足够大以承载具有开销的E-1信号。 4位标签是交叉连接指针，当指定TDM连接时，该指针将被设置。 帧的最后20个时隙被保留用于链路开销。 因此，该帧能够承载1,680个E-1 TDM信号的等效物。 对于ATM和分组数据，为64字节的有效载荷定义了16个时隙的PDU（协议数据单元）。 PDU通过具有28位路由标签的交换机进行自路由，该路由标签允许通过每个阶段使用4位的七个交换阶段进行路由。 在保持TDM定时的同时，在ATM和分组连接之间仲裁带宽。

公开(公告)号：US4789981A

公开(公告)日：1988-12-06

申请号：US122497

申请日：1987-11-16

申请人： John A. Yanosy, Jr. ,  Jitender K. Vij ,  Santanu Das

发明人： John A. Yanosy, Jr. ,  Jitender K. Vij ,  Santanu Das

IPC分类号： H04Q11/04

CPC分类号： H04Q11/0428

摘要： A system for providing data services in an evolutionary fashion as well as providing access to external data communication networks for subscribers to a circuit switched voice exchange includes a data services adjunct connected in series with presently existing voice communication paths.

摘要翻译： 用于以演进方式提供数据服务以及为电路交换语音交换的订户提供对外部数据通信网络的访问的系统包括与当前存在的语音通信路径串联连接的数据服务附件。

公开(公告)号：US4602363A

公开(公告)日：1986-07-22

申请号：US595094

申请日：1984-03-30

申请人： Santanu Das ,  Francisco A. Middleton ,  Nicholas J. R. Carter

发明人： Santanu Das ,  Francisco A. Middleton ,  Nicholas J. R. Carter

IPC分类号： H04Q11/04

CPC分类号： H04Q11/04

摘要： In order to expand or increase the number of lines of a communications system, this disclosure enables connection of one PBX switching system to another by connecting the switching networks to junctors which establish a multichannel transmission link between the first PBX module and a second module of similar format. The junctor is treated internally in each PBX module as a line or trunk port and whenever an extension number which is not contained in the numbering plan of the individual module is dialed, the control unit of the PBX will direct that call to any free junctor. The complete dialed number is transmitted from the originating module via the junctor to a receiving junctor at the other switching system. The dialed number is received at the receiving junctor through the established communications path between junctors for channel associated signalling or through a common signalling channel through which signalling for all other junctors in the link is transmitted, and after synchronization, it is utilized to made a connection between the called terminal and the calling terminal via the control unit located at the second switching system. The unique use of junctors to connect PBX systems allows for the initial installation of a small system at low cost which system can be expanded in the field in a cost effective manner by merely adding on additional systems. The distance between systems and subscribers in a system has little or no effect on its performance.

摘要翻译： 为了扩展或增加通信系统的线路数量，本公开使得能够通过将交换网络连接到在第一PBX模块和第二PBX模块的第二模块之间建立多信道传输链路的小区来连接一个PBX交换系统 格式。 在每个PBX模块中内部处理该线路或中继端口，每当单独的模块的编号方案中不包含分机号码时，集团电话的控制单元将该呼叫指向任何免费的主机。 完整的拨号号码是从起始模块经由连接器发送到另一个交换系统的接收连接器。 拨号号码是通过通道关联信令的通道之间建立的通信路径在接收方接收的，或者通过公共信令信道接收，通过该公共信令信道发送链路中的所有其他接入点的信令，并且在同步之后，利用其进行连接 在被叫终端和主叫终端之间经由位于第二交换系统的控制单元。 联合PBX系统的独特用途允许以低成本初始安装小型系统，该系统可以通过仅添加额外的系统以成本有效的方式在现场扩展。 系统与用户之间的距离对系统的性能几乎没有影响。

公开(公告)号：US4602362A

公开(公告)日：1986-07-22

申请号：US667527

申请日：1984-11-02

申请人： Franklin Hargrave ,  Francisco A. Middleton ,  Santanu Das

发明人： Franklin Hargrave ,  Francisco A. Middleton ,  Santanu Das

IPC分类号： H04M11/00 ,  H04M11/06 ,  H04Q11/04 ,  H04Q11/00 ,  G08C15/08 ,  G08C15/12

CPC分类号： H04M11/002 ,  H04M11/068 ,  H04Q11/04

摘要： A system for transporting data between equipment connected to a subscriber telephone line and a provider of services connects with subscriber telephone lines at a central office of a telephone company. The system includes a set of first multiplexers which are coupled to individual ones of the subscriber lines at a point between the cross-switching of the central office and the subscriber premises. Output signals of the first multiplexers fan into a second multiplexer. Bidirectional communication is provided between each of the multiplexers and the subscriber equipment, and also between the second multiplexer and the service provider via a line scanner which generates command signals for the operation of the first and second multiplexers. The first multiplexers, the second multiplexer, the line scanner and a host computer of the service provider can be located at a distance from each other and may be coupled together by communication links which permit the bidirectional flow of data.

摘要翻译： 用于在连接到用户电话线的设备和服务提供商之间传输数据的系统与电话公司的中心局的用户电话线连接。 该系统包括一组第一多路复用器，其在中心局与用户驻地的交叉切换之间的点处耦合到各个用户线路。 第一多路复用器的输出信号风扇进入第二多路复用器。 在每个多路复用器和订户设备之间以及在第二多路复用器和服务提供商之间经由生成用于第一和第二多路复用器的操作的命令信号的行扫描器提供双向通信。 第一多路复用器，第二多路复用器，线扫描器和服务提供商的主计算机可以位于彼此一定距离处，并且可以通过允许数据的双向流动的通信链路耦合在一起。

公开(公告)号：US4093985A

公开(公告)日：1978-06-06

申请号：US739356

申请日：1976-11-05

申请人： Santanu Das

发明人： Santanu Das

IPC分类号： G11C29/00 ,  G06F11/00 ,  G06F13/00

CPC分类号： G11C29/78

摘要： A digital data processing arrangement for providing automatic substitution of a spare memory module for a malfunctioning portion of the system memory is disclosed. The substitution takes place in a manner transparent to the software programs being run in the processing system. The system memory is organized as a plurality of memory modules, each having an identical number of individually addressable words. A particular module is enabled on receipt of an appropriate signal via a dedicated lead from the system processor unit, while a particular word within that module is specified by an address received via an address bus running to address decoder units at all modules. When the error detection and identification routines of the system processor determine that a particular module is malfunctioning, a hardware register and accompanying comparison logic are arranged such that a spare module is accessed whenever the particular malfunctioning module is subsequently addressed. The approach does not diminish the available system memory address range after spare module substitution. Additionally, no memory reconfiguration is required after spare module substitution except for loading of the spare module itself whenever program memory substitution is involved.

摘要翻译： 公开了一种数字数据处理装置，用于为系统存储器的故障部分提供备用存储器模块的自动替换。 替代以对处理系统中运行的软件程序透明的方式进行。 系统存储器被组织为多个存储器模块，每个存储器模块具有相同数量的可单独寻址的字。 在通过来自系统处理器单元的专用引线接收到适当信号时，特定模块被启用，而该模块内的特定字由通过地址总线接收的地址来指定，所述地址总线运行到所有模块处的解码器单元。 当系统处理器的错误检测和识别例程确定特定模块发生故障时，硬件寄存器和伴随的比较逻辑被布置成使得每当随后寻址特定故障模块时访问备用模块。 该方法在备用模块替换后不会减少可用的系统内存地址范围。 另外，在备用模块替换之后不需要内存重新配置，除了在涉及程序存储器替换时加载备用模块本身。