Abstract: A memory controller for improving data integrity and providing data security. The memory controller including a transmit data path to transmit write data to a memory device, the transmit data path comprising a scrambling component, wherein the scrambling component includes a scrambling logic and an exclusive OR logic, wherein the write data is divided into a first portion and a second portion, wherein input of the scrambling logic comprises the first portion of the write data and an address associated with the write data to generate a pseudo-random output, and wherein input of the exclusive OR logic comprises the second portion of the write data, the pseudo-random output and a fixed seed corresponding to the first portion of the write data to generate a scrambled data.

Abstract: Devices, methods, and systems are provided. In one example, a method is described to include measuring a cardinality of actual data flows at a flow-processing resource, determining that the cardinality of the actual data flows triggers a congestion control action, and, in response to determining that the cardinality of the actual data flows triggers the congestion control action, implementing the congestion control action with respect to the flow-processing resource.

Abstract: Methods, non-transitory machine readable media, and computing devices that dynamically throttle non-priority workloads to satisfy minimum throughput service level objectives (SLOs) are disclosed. With this technology, a determination is made when a number of detection intervals with a violation within a detection window exceeds a threshold, when a current one of the detection intervals is outside an observation area. The detection intervals are identified a violated based on an average throughput for priority workloads within the detection intervals exceeding a minimum throughput SLO. A throttle is then set to rate-limit non-priority workloads, when the number of violated detection intervals within the detection window exceeds the threshold.

Abstract: An apparatus, system and method are provided for transmitting data from logical channel queues over a telecommunications link, each of the logical channel queues capable of being associated with quality of service attributes, the method including determining available resources for transmission over the telecommunications link in a frame; selecting one of the logical channel queues based on a first one of the quality of service attributes; packaging data from the selected one of the logical channel queues until one of: a second one of the quality of service attributes for the selected one of the logical channel queues is satisfied, the available resources are used, or the selected one of the logical channel queues is empty; and repeating the selecting step and the packaging step for remaining ones of the logical channel queues.

Abstract: A computer system receives a data stream with a plurality of packets. In response to receiving the data stream with the plurality of packets, the computer system distributes individual packets of the plurality of packets to the inputs of each of a plurality of processing nodes. Each respective processing node has a local queue storing a respective number of packets to be processed by the respective processing node. Distributing a respective packet of the plurality of packets to the inputs of each of the plurality of processing nodes includes delaying sending the respective packet to each of the plurality of processing nodes by a delay time that is a non-linear function of an average number of packets in the local queues of the respective processing nodes.

Abstract: A method and system provide performance computing on a public grid. A computational mesh to solve a received engineering simulation (that has computations/processes) is computed. The mesh divides the CAD model up spatially into elements where conservation equations are formed. Mesh vertices identify nodes where field variables are defined. Each process owns a node/element and is assigned to a mesh partition. A solver application installed on each computer and each computer CPU spawns a thread to each CPU core. A matrix is assembled by each thread that computes numerical operators (that are stored as a coefficient matrix) that represent the conservation equations. The matrix is solved by solving the equations represented by the coefficient matrix. The solving yields field vectors that update the field variables at the nodes. The engineering solution is rendered based on the updated field variables.

Abstract: In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.

Abstract: A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. Currently active CPEs request bandwidth using unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE.

Abstract: A data processing apparatus includes multiple processing means that are connected in a ring shape via corresponding communication means respectively. Each communication means includes a reception means for receiving data from a previous communication means, and a transmission means for transmitting data to a next communication means. Connection information is assigned to each of the reception means and the transmission means. The communication means, when receiving a packet that has same connection information as one assigned to its reception means, causes the corresponding processing means to perform data processing on the packet, sets the connection information assigned to its transmission means to the packet, and transmits the packet to the next communication means, and when receiving a packet that has connection information that is not same as one assigned to its reception means, transmits the packet to the next communication means without changing the connection information of the packet.

Abstract: The process of traversing a K may involve determining a match between a root node and a Result node of a node on the asCase list of a current K node. When learning is off and a match is not found, the procedure may ignore the particle being processed. An alternative solution determines which node on the asCase list is the most likely to be the next node. While the K Engine is traversing and events are being recorded into a K structure, a count field may be added to each K node to contain a record of how many times each K path has been traversed. The count field may be updated according to the processes traversing the K. Typically, the count is incremented only for learning functions. This count field may be used in determining which node may be the most (or least) probable.

Abstract: The invention provides an information polling method, apparatus and system thereof, wherein a message gateway receives an information polling request from an application in an application client, and according to the received information polling request, the message gateway acquires at least one message requested by the application and calculates a reference polling cycle of the application, and sends the acquired message requested by the application and the reference polling cycle to the application. The application determines a polling cycle of a next poll according to a load condition of the application client and the received reference polling cycle. According to the invention, efficiency and quality of the information polling is improved, while the system is ensured to run normally, reducing the cases of message blocking and system breakdown which may occur in the existing situations.

Abstract: A memory subsystem includes a master controller that includes a pseudo random bit sequence (PRBS) generator having a plurality of output taps and an exclusive-OR (XOR) unit. The memory subsystem also includes a memory device that is coupled to the master controller via a plurality of single ended bidirectional data paths. The master controller may scramble a plurality of data bits using the PRBS generator and the XOR unit prior to writing the plurality of data bits to the memory device. In addition, the master controller may perform an XOR between each bit of the plurality of data bits and a respective output tap of the PRBS generator prior to conveyance on a respective path of the plurality of single ended bidirectional data paths.

Abstract: In one embodiment, a method includes monitoring utilization of an access medium relative to one or more access classes, receiving a QoS request. The QoS request identifies an access class. The method further includes computing a first allocation of an access medium for the QoS request and approving the QoS request if the computed first allocation is less than an amount of the access medium available to the access class identified in the QoS request.

Abstract: A transmission path selecting apparatus includes a receiving unit that receives a data transmission request and information that identifies the data transmission request, a holding unit that holds the information in association with a transmission path that was previously assigned to the information, a searching unit that searches the holding unit based on the information received with the data transmission request by the receiving unit, when the receiving unit receives the data transmission request, a transmission path selecting unit that selects a transmission path to be assigned to the data transmission request, from among a plurality of transmission paths other than a transmission path obtained as a result of the search by the searching unit, and an updating unit that updates a content held by the holding unit based on a result of the selection by the transmission path selecting unit.

Abstract: An aggregation switch apparatus for broadband subscribers is disclosed. The apparatus includes: an upstream input buffering unit for buffering packets from more than one subscriber link; a scheduling unit for aggregating the packets to more than one upstream link and scheduling a transfer order; a rate match buffering unit for buffering a transfer rate difference between an output of the upstream input buffering unit and an output of more than one upstream link; a downstream destination identifying unit for identifying a destination of more than one subscriber link of the packets; a broadcasting unit for transferring the packets to terminals of the broadcasting unit; a packet selecting unit for selecting a corresponding packet by identifying a destination port of more than one subscriber link of the packets; and a downstream output buffering unit for buffering the packets outputted from the packet selecting unit to said more than one subscriber link.

Abstract: Various binding information techniques are provided for a telecommunications network (20) having separated call and connection layers. In a first embodiment of the invention, binding information is associated with connection endpoint information for a first connection end point (36A) at a first end node (22A) of the network. In a second embodiment, an ATM end system address (AESA) is associated with a first connection end point at the first end node and is transmitted in the call layer to the second end node, and included in connection layer signaling sent from the call layer to the connection layer. Upon receipt of the connection layer signaling at the first end node, the first end node uses the AESA to through connect the ATM switch in the physical layer to the first connection endpoint. In a third embodiment, a dynamic ATM end system address (AESA) is associated both with a first end node of the network and with a first connection end point at the first end node.

Abstract: An integrated circuit includes a processor and at least one module and provides registers required for the modules as well as access to these registers. By concentrating the required registers according to the invention in a central register bank, which like the processor and the modules is connected to a fast AMBA-AHB bus, several advantages are achieved: for one, faster access is possible to each register. For another, the placement of the registers and the routing for the registers is simplified. This in particular allows chip area to be saved, which leads to cost savings in manufacture and enables higher component density. Furthermore, a slow AMBA-APB bus has now become optional.

Abstract: A method of signalling a message using a terminal address across multiple network entities is provided. At least two contiguous network entities are associated with addressing spaces for which message addresses are not routable by way of the terminal address and are not otherwise routable by way of a single address. The method stores a terminal address of either an originating or terminating network entity. At every network border between any two contiguous network entities wherein an immediately succeeding network entity does not provide an address through which the message is routable, it is determined whether the address is to be stored and replaced with another address. If so, the address is stored so as to permit its subsequent retrieval. Once the address has been stored, the another address is assigned to be the address and the message is routed in the succeeding network using the another address.

Abstract: A telecommunications system having segmented local ring networks is described. VLANs are used to segment the ring, constructing a logical non-ring topology providing each device on the ring with alternative paths for communication. The system provides failover (within 50 ms) and load sharing capabilities using groups of VLANS.

Abstract: An information transmitting apparatus is included in a system for transmitting information through a bus (B), for transmitting the information onto the bus. The information transmitting apparatus is provided with: an initialization detecting device (1) for detecting whether or not the bus is initialized; an obtaining device (6) for obtaining post-initialization information, which is the information transmitted on the bus immediately after an initialization of the bus when the initialization of the bus is detected by the initialization detecting device; and a transmission controlling device (3) for judging whether or not transmission information, which is the information to be transmitted onto the bus, can be transmitted in accordance with the obtained post-initialization information, and then transmitting the transmission information onto the bus if it is judged that the transmission information can be transmitted.

Abstract: Individual data packets are transmitted together with information about the end of a respective data packet, without padding, and then virtual padding is effected for generating redundant packets. At the receiver, the data packets are obtained using the information about the respective end of packet if no packet was lost, and are only expanded by padding if a packet has been lost and can be reconstructed by one or more redundant packets.

Abstract: An information communication system in which a switch constituting section (2) housing a data generating source is connected to a center switch constituting section (1) through a communication channel (3) using an ATM technology as if the function of an ATM switch of distributed arrangement type was realized. This information communication system flexibly handles new kinds of information provided with the progress of times, and, even when a fault occurs, properly copes with the fault.

Abstract: A system and method connects a call in a broadband system using the asynchronous transfer mode protocol for switching. Calls are connected over a SONET ring that has SONET multiplexers coupled by SONET paths. The SONET multiplexers are adapted to add calls to, and drop calls from, the SONET ring. An ATM cross connect system that has ATM cross connect devices is coupled to the SONET ring. The ATM cross connect devices provide provisioned ATM connections over the SONET ring. ATM interworking units are coupled to the ATM cross connect system. The ATM interworking units interwork calls with selected ATM connections in response to control messages. The selected ATM connections are provisioned between the ATM interworking units by the ATM cross connect system over the SONET ring. A signaling processor system receives call signaling for the calls, processes the call signaling to select the ATM connections for the calls, and sends the control messages to the selected ATM interworking units.

Abstract: An ATM transmission system which transmits voice data in an asynchronous transfer mode (ATM). It implements compression of a mute section over a channel by detecting the mute section of a call and by physically suppressing its transmission over the channel as an ATM cell. A transmitting side detects the mute section, generates vocal/mute information, and generates a mute start cell and a mute end cell. A receiving side generates a mute section at a fixed interval when receiving the mute start cell, and returns to a normal receiving mode of a speech spurt cell immediately when receiving the mute end cell. The suppression of the mute section makes it possible to reduce the occupied bandwidth, and to increase the channel efficiency.

Abstract: A distributed telecommunications switching system (100) is disclosed. The system includes a controller (140) that generates and transmits a cell stream with a plurality of reserved cells. A first switching subsystem (104) in communication with the controller (140) receives the cell stream and a first plurality of cells. The first switching subsystem (104) identifies the reserved cells in the cell stream and replaces selected ones of the reserved cells with selected ones of the first plurality of cells to produce a modified cell stream. The modified cell stream is transmitted to a second switching subsystem (102).

Abstract: A communication system capable of reliably recovering its communication functions on its own when a fault occurs, and which can be used to construct a highly flexible network. This communication system is configured so that a plurality of node devices (12) supporting data generating sources are connected via communication paths (13) that use ATM technology to a plurality of center devices (11), just as if it possessed distributed ATM switch functions. When the communication paths (13) between two (2) node devices (12-2 and 12-3) are cut, the center device (11-2) detects the fault point, and autonomously recovers communication functions by transferring the node device (12-2) originally under its control to the control of the center device (11-1). When this happens, the center device 11-2) cannot communicate via the communication paths (13) due to the fault, and must use a local communication means such as a wide area network (16) to communicate with the center device (11-1).

Abstract: A multiple processing system, comprises at least a pair of processor units communicatively connected to a number of peripheral devices through a network that includes routing devices interconnected to route information in the form of message packets sent between the processor units and peripheral devices. Data describing the topographical interconnections of the system elements is maintained with the system. A service processor accesses the data, determines therefrom the topographical interconnections forming the network, assigns addresses/identifications to the system elements, and configures the router devices to establish the most direct routes between system elements for message packets sent on the network.

Abstract: In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots.

Abstract: The IP addresses of network elements are generated based on the ID numbers of nodes within a network having a predetermined configuration. After producing the configuration information including an interconnection relationship among the network elements, the respective IP addresses are determined such that the ID number of each node is used to determine an IP address of each network element according to the interconnection relationship between the node and the network element. A node IP address is determined based on the ID number of the node, and another IP address of each of the network elements other than the nodes is determined based on the sum of the total number of nodes and the ID number of the node.

Abstract: Apparatus is provided for transferring user defined data from a parallel storage medium to a serial link driver in an I/O channel subsystem of a processor or I/O device controller. The serial link driver transmits a frame of user defined data over a serial data transfer medium. A data buffer receives and stores user defined data from the parallel storage medium. A control data facility that is distinct from the data buffer forms and transmits control data from the sender of the frame to the recipient of the frame via a path that does not include the data buffer. The control data facility includes respectively different dedicated logic for asynchronously generating each of the following: special character sequences, frame delimiters, headers, and cyclic redundancy checksums. A switching facility receives the user defined data from the data buffer. The switching facility also receives control data from the control data facility.

Abstract: A subscriber input/output device of a high-speed packet switching system with a parallel common bus type is disclosed. The subscriber input/output device uses a coaxial cable to establish a star network of a radius of hundreds of meters, and the star network is arbitrated by a polling method to be used as a near communication network or an internal link network of a large scale communication system. The high-speed performance of 320 Mbps-class with a relatively simple medium access protocol for transmitting data through a common parallel bus is obtained, and broadcasting and multicasting are supported.

Abstract: An ATM communication system including a plurality of communication nodes connected in a loop form by buses, buffers disposed in each communication node, a synchronizing pulse generation circuit for conducting cell demultiplexing of all communication nodes at the same timing, storage devices disposed in each communication node to store mounting position information of the communication node and slot generator position information, and a circuit used by each communication node to automatically transmit and receive cells on the basis of position information described above.

Abstract: A Scalable Multimedia Network providing integrated networking of data, voice, video and image services over a variety of access facilities including metallic loops, fiber/coax or digital fiber is disclosed herein.The SMN establishes customer initiated switched virtual circuits for all traffic types and directs them to the appropriate backbone network. The SMN is based on a distributed switching platform that enables carriers to economically provide service to a small number of customers and add capacity incrementally as the customer base increases. The platform has a protocol adaptation capability which permits communications between customer premises equipment and potentially incompatible backbone networks or network servers.

Abstract: A high capacity data communication network based on a parallel architecture, linking the nodes of the network itself, having a plurality of logic communication media, wherein for each communication medium a different node of the network is primarily either advantaged or at a disadvantage. As a result, the fairness of the traffic handling is assured independently of the type of protocol used.

Abstract: An ATM communication system including a plurality of communication nodes connected in a loop form by buses, buffers disposed in each communication node, a synchronizing pulse generation circuit for conducting cell demultiplexing of all communication nodes at the same timing, storage devices disposed in each communication node to store mounting position information of the communication node and slot generator position information, and a circuit used by each communication node to automatically transmit and receive cells on the basis of position information described above.

Abstract: A congestion relieving system in a communication system includes a local switch (62a) and a customer station including a network terminator (64a) connected to the local switch (62a) and plural data receiving/transmitting units (65) connected to the network terminator (64a) through buses (67D and 67U) conformable to a DQDB protocol. The local switch (62a) includes a congestion relieving signal generating unit for generating a congestion relieving signal when congestion is detected. The congestion relieving signal is inserted, as a request bit, into a request bit area in the cell having a format conformable to the DQDB protocol. The cell is then transmitted from the local switch (62a) through the network terminator (64a) to the data receiving/transmitting units (65), and each data receiving/transmitting unit (65), is restricted, under the DQDB protocol, to transmit data, when the data receiving/transmitting unit (65) receives the request bit.