Abstract: Provided are an implementing method and a communication system for a traditional terminal user accessing an IMS domain. The method allocates an IMS domain user identification including a public identification and a private identification to a traditional terminal user on an AGF entity controlled by an AGCF entity, and establishes a mapping relation between the IMS domain user identification and the line identification of the user. When receiving a command or message for a certain user terminal sent from the AGF entity, the AGCF entity determines the IMS domain user identification of the user according to the mapping relation and sends a corresponding SIP message to the IMS domain.

Abstract: A method for managing packet voice networks using a virtual switch approach and abstract information model approach is disclosed. A virtual switch object represents a virtual switch having a media gateway controller and one or more associated media gateways. User input specifies a configuration operation on the virtual switch and one or more parameter values. One or more configuration instructions are automatically issued to both the media gateway controller and the media gateway, resulting in configuring both the media gateway controller and the media gateway as specified in the user input. As a result, a user can configure or operate on a virtual switch as an atomic entity, for example, in a network management application, without involvement in complicated details of the actual network devices that provide a particular packet voice service.

Abstract: In an electronic circuit data is transmitted between data processing circuits across a network (12). A two-way network interface is provided for both sending transmission messages and receiving reception messages between a pair of processors through the network. The network interface uses transmission messages to transmit both data and information representing respective amounts of unreported buffer space R for receiving data items from reception messages in a buffer storage circuit (27) for the processing circuit (10). The network interface holds up transmission of a transmission message from a particular one of the data processing circuits (10) until a number A of data items, that the particular one of the data processing circuits (10) has made available for transmission in the message and for which buffer space is available across the network (12), exceeds a threshold.

Abstract: The present invention relates to a method for transmitting user data via a dialled connection in a radio communication network, characterized in that the user data are transmitted as dedicated data packets upon controlled release.

Abstract: The present invention provides a system, method and apparatus for initiating and handling an emergency IP request using an IP enabled device having GPS capability. The IP enabled device is monitored for one or more emergency criteria. If the emergency criteria are satisfied, global positioning data is obtained using the GPS capability and the emergency IP request is sent to an address server. The address server receives the emergency IP request, obtains local emergency services data based on the global positioning data, dials a call center station based on the local emergency services data and passes an emergency call from the IP enabled device to the call center station. This invention can be implemented as a computer program embedded in a computer readable medium wherein the steps are performed by one or more code segments.

Abstract: Techniques that may be utilized in a multiprocessor computing system are described. In one embodiment, one or more addresses (such as source and/or destination addresses) of a received packet are encoded to reduce the size of the addresses and the encoded one or more addresses are utilized to classifying the received packet.

Abstract: Method to protect against manipulated charging signaling data in IMS networks In the prior art CDR tickets are exchanged between devices/functionalities of an IMS system. This can result in manipulations. The invention reduces the likelihood of manipulation, in that the BGCF function of the IMS system is enhanced such that it accepts the charging-relevant signaling data as per TS 24.229 from the sender only if this was sent by the correct sender.

Abstract: In a method for enabling facilitation of re-convergence, designation information for a first port of each one of a plurality of bridges in a multi-bridge ring is received and designation information for a second port of each one of a plurality of bridges in a multi-bridge ring is received. The first port of each one of a plurality of bridges is a first direction Ring Rapid Spanning Tree Protocol (RRSTP) port and the second port of each one of a plurality of bridges is a second direction RRSTP port. The first direction around the ring (e.g., a forward direction) is opposite the second direction around said ring (e.g., a backward direction). A first reserved MAC address is associated with the first direction port of each one of the bridges and a second reserved MAC address is associated with the second direction port of each one of the bridges.

Abstract: A synchronous optical network (SONET) framer includes a frame dimension unit and a programming interface. The frame dimension unit can be programmed with a frame dimension through the programming interface. The SONET framer converts a data stream to and/or from a frame format based on the frame dimension programmed into the frame dimension unit. For instance, in various embodiments, a SONET framer can be programmed to support a variety of SONET frame sizes and to provide a number of testing and design advantages.

Abstract: A method and system for sending a multimedia stream in IP multicast networks are provided. IGMP report data is collected by a plurality of routers. The routers report the IGMP report data to a netflow collection server. The netflow collection server collates the IGMP report data. The collated IGMP report data is forwarded to an encoder coordinator. The encoder coordinator adaptively computes an encoding rate of the multimedia stream. The encoded multimedia stream is sent to a plurality of receivers at the encoding rate.

Abstract: Embodiments of System and Method for Admission Control of Multicast Downstream Traffic in a Wireless Network are generally described herein. Other embodiments may be described and claimed. In some embodiments, an access point may be restrained from over-reserving bandwidth for multicast streams.

Abstract: A gateway is used to segment a network, such as a Fault Tolerant Ethernet (FTE) network, into islands. The gateway receives traffic from a first island, forwards part of the traffic to a second island, and blocks another part of the traffic from being forwarded to the second island. The forwarded traffic could include unicast traffic. The blocked traffic could include broadcast or multicast traffic, including diagnostic messages from one or more nodes in the first island.

Abstract: In a broadband communication network, a method (400) for delivering content to a consumer network device. The method includes: managing (402) an original data stream carrying the content, the original data stream having original recurring access units (“RAUs”) usable by the consumer network device to acquire the content; replicating (404) the original data stream to form a replicated data stream having replicated RAUs; offsetting the replicated data stream (and the replicated RAUs) relative to the original data stream by an amount of time; and arranging (408) for communication of the amount of time to the consumer network device. The amount of time is usable (410) by the consumer network device to determine a next available RAU from among at least one of the original RAUs and at least one of the replicated RAUs, and the next available RAU is usable by the consumer network device to acquire the content.

Abstract: A packet data router (300) comprises a central node (200) that is configured and arranged to provide data packet forwarding services but not data packet routing services and a plurality of physically discrete application nodes (301, 302, and 303) that are each operably coupled to the central node wherein each of the application nodes are configured and arranged to provide data packet routing services but not data packet forwarding services.

Abstract: A method for processing network traffic data includes receiving network traffic data, and passing the network traffic data to one of a plurality of worker modules for processing the network traffic data, wherein the step of passing is performed based at least in part on a quantity of the worker modules, and/or a number associated with a first IP address. A system for processing network traffic data includes a first IO module, a second IO module, a first worker module coupled to the first and second IO modules, a second worker module coupled to the first and second IO modules, and a switch module coupled to the first IO module, the second IO module, the first worker module, and the second worker module.

Abstract: An address-transparent device is disclosed that couples between two network interfaces in a semiconductor fab for communicating packets between a host coupled to a first network interface and a tool coupled to a second network interface. Alternatively, the address-transparent device couples between two networks in a semiconductor fab for communicating packets between a host on a first network and a tool on a second network. In a first aspect of the invention, the address-transparent device routes packets between the first network and the second network that is independent of any protocol. The address-transparent device couples to the host through the first network and couples to the tool through the second network where the address-transparent device having a first port with no IP address and a second port with a subnet IP address.

Abstract: A thin client server 32 is adapted for communicating over a network with a thin client 31 configurable for operating with a terminal server 33. The thin client server comprises a database 321 for storing and retrieving thin client MAC addresses, user or group names and associated thin client configuration settings. The thin client server is arranged such that, on booting the thin client, configuration settings storable in the database relating to the said thin client are retrievable over the network by the thin client for use in operation with the terminal server.

Abstract: Network services are routed responsive to receiving a datagram. The datagram requests a certain network-delivered service and includes a virtual address for the service. An apparatus selects a physical address for a certain server from among a number of a physical addresses of respective servers associated by the apparatus with the virtual address. Performance of the respective servers is ranked so that the physical address are selected responsive to the performance ranks. The apparatus forwards the datagram, which includes the selected physical address for directing the datagram to the certain server.

Abstract: A network device for providing statistical sampling of packet at a port. The network device includes an ingress module for randomly selecting a packet at one of a plurality of ports for statistical sampling and an egress module for randomly selecting a packet at one of a plurality of ports for statistical sampling. The network device also includes a processing module for receiving a copy of a selected packet from at least one of the ingress module or egress module and for performing statistical flow processing on the packet.

Abstract: Communicating data packets between a client device and a host system generally includes using a protocol server module, located on the client device, that terminates a communication session that uses a first protocol and that is intended to enable communications between a source and a destination, in which the source is one of a client device operating system protocol stack and the host system and the destination is one of the client device operating system protocol stack and the host system but differs from the source. The protocol server module translates data packets from the source between the first protocol and a second protocol that is different from the first protocol and transports the data packets having the second protocol to the destination. A controller module generally also is included on the client device. The protocol server module may include a PPP server module located on the client device.

Abstract: Narrowband signaling from a transfer node for a call originating at an end office is received at a centralized control and signaling interworking function device in an asynchronous transfer mode switching network. The received narrowband signaling is converted to broadband signaling. The broadband signaling is provided to a plurality of trunk interworking function devices via the asynchronous transfer mode switching network, to establish a connection across the asynchronous transfer mode switching network, when the centralized control and signaling interworking function device and the plurality of trunk interworking function devices are determined to be members of a closed user group.

Abstract: Systems and methods for providing a deterministic process for implementing network traffic prioritization, particularly for implementing bandwidth latency sensitive applications are described herein. In one embodiment, multiple network interfaces are provided within a system. Network communication traffic through the system may be prioritized between different network interfaces based upon the type of traffic that is being handled. Higher priority bandwidth or latency sensitive traffic may be routed to the network interface that best suited for such traffic. In some applications each network interface may operate in a separate band, however, in other applications one or more of the network interfaces may be of the same band type.

Abstract: One embodiment of the disclosures made herein is an Internet Protocol (IP) multicast control system. In accordance with such IP multicast control system, the IP multicast control system includes a first module capable of facilitating IP multicast control connections between a first apparatus and a second apparatus and a second module capable of enabling termination of a control protocol of the first module. The second module is capable of being supported at an Asynchronous Transfer Mode (ATM) layer of the second apparatus.

Abstract: Methods and apparatus for optimizing Mobile VPN communications are disclosed. When a data packet is transmitted between a Mobile Node that is a member of a VPN and a Correspondent Node, the data packet is transmitted between the Mobile Node and a Home Agent via a Mobile IP tunnel without transmitting the data packet via a VPN tunnel. However, the data packet is transmitted between the Home Agent and a VPN headend via a VPN tunnel.

Abstract: A system and method that facilitates client address updating in a communication network is presented. Client address lists are maintained and updated with a single mechanism deployed flexibly across different communication environment boundaries. Network devices update address lists for clients deployed across boundaries of wireless communication environments (e.g., an IEEE 802.11 compliant environment) and wired communication environments (e.g., an IEEE 802.3 compliant environment). Interruptions and delays in information communication due to stale client registration and tracking activities are minimized.

Abstract: A computer network includes first and second Ethernet access domain networks, each of Ethernet access domain networks including a user-facing provider edge (u-PE) device, and a stack group of network-facing provider edge (n-PE) devices coupled with the u-PE device, the n-PE devices running a bidding protocol to select one of the n-PE devices as a primary n-PE device for a single pseudowire connection path between the first and second Ethernet access domain networks. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A threshold mechanism is provided so that a producer and a corresponding consumer, executing on the same resource (e.g., CPU) are able to switch context between them in a manner that reduces the total number of such context switches. The threshold mechanism is associated with a buffer into which the producer stores packets up to a given threshold before the consumer is allowed to remove packets. The buffer has an associated upper limit on the number of packets that can be stored in the buffer. A flush empties the buffer of any remaining packets when no more packets are to be produced. This reduction in the total number of context switches in general leads to better performance at the cost of more latency.

Abstract: The buffer management system (100) is arranged to control in a data communication system an end to end delay (?) of a data unit (150) from input to output. Blocks (104, 106) of data units (150, 152) are written in a buffer (102) with a block write rate (Rw), and data units (154, 156) are read from this buffer (102) with a read rate (Rr). The end to end delay (?) is controlled by adapting the read rate (Rr) from the buffer (102), and hence the buffer filling (F) on the basis of measurements of delays in the buffer management system (100).

Abstract: Method and apparatus to support efficient check-point and role-back operations for flow-controlled queues in network devices. The method and apparatus employ queue descriptors to manage transfer of data from corresponding queues in memory into a switch fabric. In one embodiment, each queue descriptor includes an enqueue pointer identifying a tail cell of a segment of data scheduled to be transferred from the queue, a schedule pointer identifying a head cell of the segment of data, and a commit pointer identifying a most recent cell in the segment of data to be successfully transmitted into the switch fabric. In another embodiment, the queue descriptor further includes a scheduler sequence number; and a committed sequence number that are employed in connection with transfers of data from queues containing multiple segments. The various pointers and sequence numbers are employed to facilitate efficient check-point and roll-back operations relating to unsuccessful transmissions into the switch fabric.

Abstract: A method and system is disclosed for configuring a queue profile based on an input values received from a user. According to an exemplary embodiment, a series of threshold queue sizes are generated based in part on the input values and a corresponding series of drop priority values. A lookup table may be provided to categories the threshold queue sizes within predetermined queue size blocks.

Abstract: Users on a peer-to-peer network, particularly a local subnet or ad hoc wireless network, may publish first contact information to a graph or data store on the network. The first contact information may include a certificate with a public-key and a user identification, such as a peer name. Other users may discover the first contact information and use the first contact information to request additional information from the user. Data in the first contact information may also be “promoted” by adding the information to a trusted contacts database, allowing the user additional privileges. The user publishing the first contact information may be given the opportunity to approve or deny the request for additional information.

Abstract: An apparatus and method for providing a storage medium accessible across a network to a host. The storage medium's operation is generally controlled by a network disk controller. The network disk controller may receive a packet from a remote host, decapsulate the packet, and act on the packet to either transmit data from a storage medium or write data to a storage medium. Generally, the network disk controller does not execute any file system. Rather, the file system for communication between the host and controller is executed by the host. The performance of the network disk controller generally matches that of a local (i.e., non-network) disk controller in terms of data access and writing.

Abstract: In one embodiment, a method comprises receiving a data packet into a multi-layer communication protocol processor. In at least one protocol layer, the data context data associated with a subsequent protocol layer is prefetched while the data packet is processed in accordance with the current protocol layer. A portion of the processed data packet is passed to the subsequent protocol layer.

Abstract: The present invention relates to retransmissions in a communications system. A method and system of reducing uplink retransmission delay of a radio communications system by introducing an uplink MAC ARQ layer of Node B is disclosed. Further, a MAC PDU data indicator for soft combining control in Node B and RLC PDU reordering is introduced.

Abstract: A method and a system for communicating data packets over a data bus is provided. The method includes sending one or more delimiter lines, a delimiter line comprising ‘N’ number of characters, the characters being sent for clock recovery; scrambling the data packets; sending the scrambled data packets after the delimiter line; sending at least one intra-packet within the data packets, the intra-packet being a packet within packets, the intra-packet including ‘control’ information; sending one or more delimiter lines after sending the scrambled data packets; and descrambling them.

Abstract: The present disclosure is generally directed to a method of communicating data between two or more semiconductor devices. Serial interfaces using the method have a reduction in latency compared to conventional serial interfaces. The method enables features needed for a serial interface, such as limited run lengths and recognizable data boundaries to establish alignment. In addition, a method for synchronizing two or more semiconductor devices through serial interfaces has been presented. This is done by passing a marker data pattern through the system.

Abstract: Disclosed is a time synchronization method for selecting a predetermined timing master and according Times of Day of a plurality of nodes with a Time of Day of the predetermined timing master in a Residential Ethernet system, which includes the nodes, the method comprising the steps of receiving, by a predetermined node among the nodes, a time value of the predetermined timing master, and setting a time value of the predetermined node as the received time value, and changing, by the predetermined node, the set time value by taking into consideration a data transmission delay time value between the predetermined node and the predetermined timing master.

Abstract: A fiber Chirped Pulse Amplification (CPA) laser system includes a photonics band gap (PBG) fiber to function as a compressor. The PBG fiber is spliced with a fiber end cap that has an core expander for increasing a mode area of the PBG fiber. With increased mode area, the laser system is enabled to sustain an increased damage threshold energy thus is capable of producing short pulse laser with higher pulse energy.

Abstract: The invention provides a frequency-stabilized laser and frequency-stabilizing method capable of stabilizing an oscillation frequency of laser beam. A photodetector detects an optical output signal obtained when a reference laser beam transmits through an absorption cell. A third-order differential signal detector generates a third-order differential signal of the optical output signal. A first actuator varies the resonator length. A first driver drives the first actuator. A second actuator varies the resonator length. A second driver drives the second actuator. A first controller controls the first driver based on the optical output signal. A second controller controls the resonator length based on the third-order differential signal using the second actuator. The first actuator and the second actuator are used to control the resonator length to stabilize the oscillation frequency.

Abstract: In a wavelength-stabilized pumped laser, the Fabry-Perot cavity of the laser chip is initially tuned so as to fit at least two absorption lines of the pumping medium. A Fabry-Perot cavity of a filter disposed in the cavity selects multiple lines fitting the absorption lines of the pumping medium.

Abstract: An optical element comprising: a surface-emitting type semiconductor laser having an emission surface; and a photodetector element formed above the emission surface of the surface-emitting type semiconductor laser, wherein the photodetector element includes a semiconductor layer having a photoabsorption layer, the semiconductor layer having a film thickness d that satisfies a formula (1) as follows: (2m?1)?/4n?3?/16n<d<(2m?1)?/4n+3?/16n . . . (1), where m is an integer, n is a refractive index of the semiconductor layer, and ? is a designed wavelength of the surface-emitting type semiconductor laser.

Abstract: According to the present invention, plural Group III nitride based compound layers with different compositions are placed between an active layer and a hole supply layer for smoothly moving holes to the active layer by using Coulomb forces from polarization charges caused by the difference in composition among the Group III nitride based compound layers.

Abstract: Interband cascade lasers having high-refractive index semiconductor spacer layers within the active regions are disclosed. Together with spacer layers which may be provided outside the active regions, broadened waveguides are formed which increase brightness and decrease divergence of the lasers. In one embodiment, current may be supplied laterally through the high-refractive index spacer layers. Carriers may be injected vertically through the active region from these contact layers, allowing selective functionality of some or all of the active region cascaded stages.

Abstract: A semiconductor laser device comprising: a first cladding layer of a first conductivity type; an active layer provided on the first cladding layer and having a quantum well structure; an overflow blocking layer of a second conductivity type provided on the overflow blocking layer. The active layer includes a region having an impurity concentration is 3×1017 cm?3 or more and having a thickness of 30 nm or less between the overflow blocking layer and a well layer in the active layer closet to the overflow blocking layer.

Abstract: A semiconductor laser device includes: on an n-GaAs substrate, an n-type cladding layer of n-(Al0.3Ga0.7)0.5In1.5P, an n-side guide layer of i-In0.49Ga0.51P lattice-matched to GaAs, an active layer having a larger refractive index than the n-side guide layer, and including an In0.07Ga0.93As quantum well layer, a p-side guide layer of i-In0.49Ga0.51P, and a p-type cladding layer of p-(Al0.3Ga0.7)0.5In0.5P. Therefore, the anti-COD level increased, and internal loss minimized.

Abstract: An optical system that improves and equalizes the beam quality of a semiconductor laser array. The semiconductor lasers are arranged along a first axis, and the second axis has a higher beam quality than the first axis. The system includes a high-efficiency optical device that transforms light beams emitted from the lasers into any desired re-arranged shapes, such as a column along a second axis, or a circular arrangement.

Abstract: An optically pumped semiconductor laser and an optical pumping method are disclosed. The optically pumped semiconductor laser includes an output mirror and a reflective mirror for forming a resonant region therebetween, a gain medium disposed between the output mirror and the reflective mirror and a light source for applying a source light in a direction between the output mirror and the gain medium to activate the gain medium, whereby the optical axes of the light from the source light and the light generated from the gain medium are substantially perpendicular to each other and the optical axes of a second harmonic generated from a nonlinear crystal is substantially equal to the optical axis of the light generated from the gain medium.

Abstract: An improved singlet delta oxygen generator (SOG) and method of its use are disclosed. The improved SOG is compact and scalable, capable of operating in a zero-gravity or low gravity environment, requires no gaseous diluent or buffer gas, and is capable of operating at pressures as high as one atmosphere. The improved SOG also efficiently utilizes the reactants and produces a O2(1?) stream that is largely free of chlorine and water vapor contamination and therefore does not require a BHP regeneration system or a water vapor trap. When used as part of a COIL system, the SOG may be part of a plenum that directly feeds the laser's nozzle. The close proximity of the SOG to the laser cavity allows operation of the SOG at higher pressures without significant depletion of available O2(1?) through collisional deactivation.

Abstract: An induction furnace includes an induction coil, an electrically non-conductive crucible having an inner diameter disposed within the induction coil, and an electrically conductive member disposed below the crucible and having an outer diameter which is further from the induction coil than is the inner diameter of the crucible. Due to the non-conductive nature of material disposed within the crucible at lower temperatures, the induction coil initially inductively heats the conductive member, which transfers heat to the material to melt a portion of the material. Once the material is susceptible to inductive heating (usually upon melting) the susceptible material is inductively heated by the induction coil. During the process, inductive heating of the material greatly increases as inductive heating of the conductive member greatly decreases due to low resistivity of the molten material and due to the molten material being closer to the coil than is the conductive member.

Abstract: A temperature sensor, which comprises a temperature-dependent element, a comparator unit, first/second capacitors and first/second switching capacitors, is provided. The temperature-dependent element has an input terminal selectively coupled to one of a first current source and a second current source, and has an output terminal. The comparator unit comprises a comparator and first/second feedback capacitors. One end of the first switching capacitor is coupled to the first comparator input terminal, and another end of the first switching capacitor is selectively coupled to one of two different voltages. One end of the second switching capacitor is coupled to the second comparator input terminal, and another end of the second switching capacitor is selectively coupled to one of two different voltages.