Abstract: A method for call parking in a network telephony system is disclosed. A first user agent and a second user agent establish a communication session, and the second user agent enters a call park number to initiate a call park of the communication session. Subsequently, the call park number and the location of the second user agent are sent to a server, which authorizes the second user agent for call parking. The server then registers the call park number, and the communication session between the first and second user agents is parked. When a third user agent wants to pick up the communication session, the third user agent calls the server by entering the call park number. The server then routes the third user agent to the second user agent, which in turn refers the third user agent to the first user agent. The first and third user agents then establish their own communication session, the communication session between the first and second user agents is terminated, and the call park number is deregistered.

Abstract: The advances disclosed herewith delimit an improved method and system for smoothly rating and billing Multimedia Messaging Service (MMS). Implemented as part of a computer program product, the solution seeking the protection of Letters Patent, represents a comprehensive real-time solution for rating incoming and outgoing MMS messages which, with a view towards simplicity and efficacy of purpose, enables wireless/mobile subscribers to maintain a single account for both voice and messaging (MMS) services.

Abstract: Providing enhanced emergency services (E-911) to an IP Telephony-based PBX or similar system, by utilizing aspects of the intelligence of end-user SIP client devices to address challenges and difficulties associated with E-911-like services in LAN-based telephony environments.

Abstract: An integrated network adapter is operable to establish a network interface with a plurality of media types, including at least a power line network and a telephone line network, based on pre-configuration, upon initialization and dynamically during operation. The adapter further is operable to establish network interfaces simultaneously or separately with a plurality of media types and provide that a communications event can occur simultaneously or separately over a plurality of media types.

Abstract: An IP telephone system includes a source IP telephone apparatus, a destination telephone apparatus, a Web server and an ENUM server. The IP telephone apparatuses are connected to an IP network. The Web server stores ring tone information corresponding to a telephone number assigned to the source or destination IP telephone apparatus. The ENUM server stores a NAPTR resource record in which a URI specifies link data related to the ring tone information stored in the Web server. In the IP telephone system, the IP telephone apparatus that has received a call transmits, to the ENUM server, a query for a NAPTR record corresponding to an intended recipient's telephone number.

Abstract: A method and apparatus for enabling subscribers to store telephone numbers and/or URLs embedded in streaming video contents associated with a video session being shown on video display devices into address books hosted in the network. Subscribers can then access these phone numbers to place phone calls using information stored in the network address books by activating a voice session. Similarly, subscribers can also access URLs to browse websites using URLs stored in the network address books by activation a web session.

Abstract: A voice over packet (VoP) system using a plurality of digital signal processors (DSPs) and a speech processing method are provided. A plurality of first-stage DSPs perform encoding voice signal of calls allocated in advance, among calls from a circuit network, and output packets corresponding to the voice signal. A plurality of first memories are disposed corresponding to the plurality of first-stage DSPs, respectively, and store feature data obtained from calls input by the plurality of first-stage DSPs, respectively. A second memory stores feature data of the number of calls exceeding the processing capacity of first-stage DSPs among the calls input from the circuit network. A second-stage DSP performs encoding voice signal stored in the second memory and outputs packets corresponding to voice signal stored in the second memory. A packet network interface collects processing results of the first-stage DSPs and the second-stage DSP and distributes inputs from a packet network to first-stage DSPs.

Abstract: A system for path finding and terrain analysis. The system includes at least one processing unit, a graph processing unit and an artificial intelligence logic unit. A local bus is coupled to the at least one processing unit, the graph processing unit, the artificial intelligence unit and a bus interface unit. A memory bus is coupled to said bus interface unit, the at least one processing unit, a data memory, and a program memory. The graph processing unit further includes a network of interconnected nodes. Each of said nodes have at least one digitally programmable delay unit.

Abstract: The creation of a variety of upgradeable scalable switching networks are set forth including multistage switching networks as well as novel multidirectional architectures. Systems and methods exploiting the properties such as fault tolerance, upgradeability with out service disruption and path redundancy are incorporated into a variety of systems. A wide range of methods for upgrading and reconfiguration the scalable switching networks are presented including manifestations of implementations of said networks and said methods. Methods for designing new upgradeable scalable switching and the novel architectures derived thereof including architectures built from the redundant blocking compenstated cyclic group networks are set forth.

Abstract: A compact multi-stage switching network (100), and a router (510) incorporating such multi-stage switching network, adapted for simultaneously routing a plurality of data packets from a first plurality of input ports (110) to selected ones of a second plurality of output ports (190) comprising: a first stack (140) of IC switching layers (113) that are stacked in physical contact with one another, each IC switching layer containing at least one switching element circuit (142); a second stack (160) of IC switching layers (113) that are stacked in physical contact with one another, each IC switching layer (113) containing at least one switching element circuit (162); and interconnecting circuitry (150) that connects the first stack (140) of IC layers to the second stack (160) of IC layers to form the compact multi-stage switching network. The stacks (140, 160) are preferably mated to one another in a transverse fashion in order to achieve a natural full-mesh connection.

Abstract: A multi-service platform system, includes a backplane (104), a switched fabric (106) on the backplane, and at least one of a VMEbus network and a PCI network coincident with the switched fabric on the backplane. A payload module (102) has one of a 3U form factor, a 6U form factor and a 9U form factor, where the payload module is communicatively coupled with the backplane using the switched fabric and at least one of the VMEbus network and the PCI network. At least one multi-gigabit connector (118) is coupled to a rear edge (119) of the payload module, where the at least one multi-gigabit connector is coupled to communicatively interface the payload module to the backplane, and where the switched fabric and at least one of the VMEbus network and the PCI network are communicatively coupled with the payload module through the at least one multi-gigabit connector.

Abstract: A routing system operably links a mobile platform to the Internet. The system includes a ground based communications link manager linkable to the mobile platform. At least one ground based prefix server can communicate with the communications link manager. An initial Internet address is assigned to the mobile platform. A prefix server program communicates the initial destination address of the mobile platform to the communications link manager and to the Internet. During a travel segment of the mobile platform a new destination address can be communicated to the Internet using the prefix server to maintain communication between the mobile platform and the Internet.

Abstract: A node device for providing secure communication services over a data network, such as the Internet or another public or private packet switched network, to multiple computers that are coupled through the node device and multiple other node devices. The node device includes a network communication interface for coupling the node device to the data network. The node device includes a data storage containing cryptographic information including information that is unique to the node device. The node device also includes a tunneling communication service coupled to the network interface configured to maintaining an encrypted communication tunnel with each of multiple other node devices using the cryptographic information. For example, the encrypted communication tunnels are implemented using the IPsec or PPTP protocols. The node device includes a routing database for holding routing data and a router coupled to the tunneling communication service and to the routing database.

Abstract: Determining availability of a destination for computer network communications that include providing on a caching device a destination availability cache comprising at least one cache entry representing availability of a destination and providing, from the caching device to a source, through computer network communications, information indicating the availability of the destination. In typical embodiments, the cache entry comprises a network address of a destination device and a time limitation for the cache entry.

Abstract: A packet reshuffler and a method of implementing the same is described. In one example, a digital logic circuit in a transmitter for sending packets stored in a set of buffers includes circular shift register logic, encoder logic, selection logic, and combinatorial logic. The circular shift register logic includes a plurality of registers configured to respectively store a plurality of pointers. Each of the plurality of pointers includes an address of one of the buffers, a priority value, and a type value. The encoder logic is configured to produce a plurality of sets of bits respectively associated with the plurality of pointers. The selection logic is configured to process the plurality of sets of bits to generate a shuffle entry signal associated with a selected one of said plurality of pointers. The combinatorial logic is configured to control the circular shift register logic in response to the shuffle entry signal.

Abstract: A calling network capable of accepting voice and data information includes a voice distribution server, wherein the voice distribution server is communicably coupled to an integrated access device, wherein the voice distribution server is associated with a computer readable medium, and wherein the computer readable medium includes a customer profile; and wherein the customer profile includes at least one registered access number associated with the integrated access device, and at least two quasi-registered access numbers associated with the integrated access device.

Abstract: The present invention relates to a terminal-to-terminal communication connection control method using an IP network characterized in that: in order for a mobile telephone set to have a telephone communication with a fixed telephone set by way of a mobile communication network and an IP network, the mobile communication network carries out a line connection control based on the common channel signaling system; the IP network establishing a communication path by carrying out a line connection control applying a common channel signaling system to the IP network thereby effecting a telephone communication.

Abstract: In order to perform cache processing for the received packets, a network apparatus is provided with a network-processor accelerator for caching the process result of a network processor. Accordingly, the network apparatus of the present invention ensuring higher packet-processing throughput can be realized by improving the packet-processing throughput without increase in the chip area, increase in the power consumption, and shortage in an external connected memory bandwidth.

Abstract: A system and method for determining route quality in a network in which multiple routes exist between a transmitting end-point and a receiving end-point. Initially, a routing sequence number is associated with each transmission sent on a route in the network, such that consecutive transmissions sent on one of the routes have consecutive routing sequence numbers. The routing sequence number for a first one of the routes is included in transmissions sent on a second one of the routes. The routing sequence number of the first route, received on the second route, is used as an indicator of the route quality of the first route, and this indicator is compared to an expected routing sequence number for the first route to determine a likelihood of whether the transmissions sent via the first route are either lost or delayed. The expected routing sequence number is normally incremented each time a transmission is received on the second route.

Abstract: In a method of detecting whether a given node supports a given protocol version, a source node sends a request message to the destination mode based on a first protocol version. The source node receives an indication message in reply to the request, and may detect that the destination node does not support the first protocol version based on the indication message. Accordingly communications may be established between a user of the wireless network and an external network via the source and destination nodes.

Abstract: A routing table search circuit comprising a forwarding table containing forwarding table entries, each forwarding table entry comprising a destination address, and a content addressable memory (CAM) comprising a CAM lookup table, the CAM receiving a search key and outputting a CAM search result corresponding to the search key from the CAM lookup table. The search key comprises at least: i) a packet type field associated with the first received address and ii) an address field containing a most significant bits portion of the first received address. The routing table search circuit also comprises M pipelined memory stages for storing a trie table that translates the first received address into the first destination address. The M pipelined memory stages are searched using the CAM search result and a remaining bits portion of the first received address. Each of the M pipelined memory stages outputs a stage search result.

Abstract: In some embodiments, a method includes generating a prefix trie for a set of patterns, generating a suffix trie for the set of patterns, and establishing respective links between nodes of the prefix trie and respective corresponding nodes of the suffix trie. In some embodiments, a method includes adding a suffix to a suffix tree, so that the suffix (which is at least a portion of a pattern) is represented in the tree by a path that begins at a first node and ends at a second node, and associating with at least the first node and the second node a pattern identifier that identifies the pattern.

Abstract: Mediation devices in an asynchronous network of low power consumption communication devices are leveraged through the use of new protocols (2500) that analyze relevant QoS parameters (2520) in order to provide a better than best effort service in the network. These protocols invoke adaptive quality of service (QoS) mechanisms to capitalize on the strength and flexibility provided to the network by the presence of one or more MDs, as described above. Expanded functionality of the MD includes control information messaging and service differentiation for the purpose of improving QoS of the network.

Abstract: An ARPA-Internet Network Access/Service Provider device includes a fax gateway having a storage device for storing an e-mail message received from a sender through a data communication network. The stored e-mail message is converted to a fax document for transmission thereof to a fax recipient having access to a fax device. At least one fax modem device is used for transmitting the fax document to the fax recipient through a public telephone network, wherein the ARPA-Internet Network Access/Service Provider device allows a fax recipient to receive e-mail messages by the use of a fax device without requiring computer equipment.

Abstract: The present invention concerns a server control plane connections recovery method and a system for a server-gateway architecture based telecommunication network. Predetermined control data is buffered per traffic flow in the server and the buffered control data of a traffic flow is transmitted to the gateway associated with said traffic flow if there is change in said data. The transmitted control data is stored in said gateway. The server is restarted if it malfunctions and an indication about the server restart is transmitted to one or more gateways. The stored control data is transmitted back to the server from one or more gateways in response to a received server restart indication. The server control plane connections are restored to state before restart by utilizing the control data received from the gateways.

Abstract: A communication connecting apparatus that is able to execute a function of a security protocol for home devices that lack the ability to process a security protocol. The communication connecting apparatus, according to the present invention, comprises a protocol detector for detecting a key exchange protocol in a packet received from an external device, a list storage unit for storing a list of devices for executing a certification procedure, and an agent unit for executing a certification procedure by transmitting a certification signal to the external device when a device corresponding to the key exchange unit exists in a device list. By this method, security can be assured not only outside but also inside of the home network in transceiving data between a device connected to the home network and the remote client.

Abstract: Nodes on a wide area network (“WAN”) such as the Internet may communicate with multiple Internet Protocol Version 6 (“IPv6”) nodes on a private network despite the lack of domain name service (“DNS”) server support. The nodes on the private network may obtain router advertisements and utilize this information to generate IPv6 addresses (6-to-4 addresses). A detection process may detect these IPv6 addresses and create web pages including these addresses. When the nodes on the WAN attempt to reach the private nodes using an address of the gateway separating the WAN from the private network, the nodes may instead reach the web pages created by the detection process. These web pages may redirect the nodes to communicate with each of the private nodes using their respective IPv6 addresses.

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: Method and apparatus for communicating global link control words (LCW) between chips. A queue stores LCWs and has in input for receiving an LCW from a previous chip, and an output for outputting a stored LCW to a subsequent chip. A management circuit compares an incoming LCW with a previously stored LCW, and a combiner circuit combines the incoming LCW with a previously stored LCW and stores the combined LCW in the queue when the management circuit determines that the incoming LCW can be combined with the previously stored LCW.

Abstract: A multiprocessor switching device substantially implemented on a single CMOS integrated circuit is described in connection with a descriptor write back timer mechanism for use in efficiently writing descriptors back to memory after transmitting data under control of the descriptors to inform the processor(s) about system-related functions for a plurality of channels. A timing interval pulse is provided for prompting descriptor write back operations that are otherwise subject to a minimum descriptor count requirement.

Abstract: A system for multicasting in a high-speed switching environment includes multiple input ports and multiple output ports. Each output port is, according to a vector, allowed to forward multicast packets received by only a particular one or by particular ones of the input ports and can identify a multicast packet that has been received by one of the input ports, using the vector, determine whether the output port is allowed to forward the identified multicast packet, and, if the output port is allowed to forward the identified multicast packet, forward the identified multicast packet.

Abstract: A system, method and computer program product are provided for translating between Internet Protocols (IP's). Initially, data is received over the Internet utilizing a first IP. Such data is adapted for being processed by an application program. Next, it is determined whether the application program can process data received over the Internet utilizing the first IP. If it is determined that the application program can not process data received over the Internet utilizing the first IP, the data is converted from the first IP to a second IP that the application program is capable of processing.

Abstract: Methods and systems for providing a WLAN-BTS gateway are disclosed. A handset registers with a WLAN-BTS gateway. The handset then initiates a call by initiating layer 3 air interface signaling with a BTS. The gateway forwards the layer 3 air interface signaling between the gateway and the handset. The gateway learns the control channel and traffic channel allocated to the call, either directly from the layer 3 signaling or from a separate message received from the handset. Once the call is connected, the gateway listens on the traffic channel and forwards voice packets between the handset and the BTS. Communications with the BTS occur over the allocated traffic channel. Communications with the handset occur over a WLAN.

Abstract: A packet processing terminal and method for compressing a header of a packet. When it is determined an IP header is to be compressed in order that a terminal removes overhead of a generated packet, an IP header compression option is added to a socket option of a socket generated in order to exchange the packet between an application module and an OS module. And, when the application module sets the IP header compression option, the IP header of the packet is compressed by the OS module using a compression method corresponding to option information of the set IP header compression option.

Abstract: The present invention is directed to the synchronization of clock frequencies across packet data networks. In particular, one or more communication endpoints may produce a clock signal that is synchronized to a master clock source. Synchronization is performed by providing timing packets containing information regarding a number of clock cycles counted on the master clock source to a controlled clock source. The controlled clock source uses the provided count to increment a counter value. At the same time, the counter value on the controlled clock source is decremented by the controlled clock source clock. The resulting counter value is used to address a correction table. A correction value from the correction table is applied to the frequency control input of the controlled clock source clock.

Abstract: A first demultiplexer and a second demultiplexer receive and demultiplex STM-64 data to generate parallel data. A FEC frame generating encoder carries out error correction encoding operation in a column direction of the parallel data that constitutes a matrix, adds a resulting error correcting code to the parallel data, carries out error correction encoding operation in a row direction of the parallel data, and further adds a resulting error-correcting code to the parallel data. A first multiplexer and a second multiplexer multiplex the error-correction-encoded parallel data, and output the data as a FEC frame.

Abstract: A method and apparatus for providing a technique to transfer two digital video signals synchronously across a bus sharing the same pixel clock and data bus.

Abstract: Two laser media are disposed at equal intervals between a first flat mirror, which is a resonator mirror comprising a resonator, and a second flat mirror for separating laser light that transmits second-harmonic laser light and reflects fundamental laser light toward a laser light incident plane; and a dielectric multilayer film is formed on the second flat mirror for separating the laser light. A third flat mirror, which is a resonator mirror, is disposed so as to face a direction 90° to the incident direction of the fundamental laser light in the second flat mirror. A first lens, a nonlinear optical crystal for converting fundamental laser light into a second-harmonic laser light, and a second lens are disposed in sequence in a single row at intervals that are equal to the focal distances f of the first and second lenses between the second and third flat mirrors.

Abstract: Provided are a small-sized, low-cost, and easy-to-use laser optical path length difference detecting device, a laser optical path length difference detecting device, and a coherent optical coupling device. The laser optical path length difference detecting device detects an optical path length difference between propagation paths of a first laser beam (1) and a second laser beam (2), which are mutually coherent when the beams are propagated through two arbitrary optical paths of a plurality of laser beam optical paths.

Abstract: A Magneto-Optoelectronic Device MOD (10) includes a magnetic sensing device (12), such as a magnetoresistive device or a magnetic tunnel junction device, that is combined with a semiconductor light emitter (14), such as a LED or a laser diode, to create a compact integrated device where changes in an ambient magnetic field are expressed as changes in an optical beam intensity emanating from the MOD. Using the MOD (10) the magnetic field related information can be transmitted by a light wave over very large distances through some medium (34), for example, through free space and/or through an optical fiber.

Abstract: A method is described to improve and produce purer Cr4+-doped laser materials and lasers with reduced co-incorporation of chromium in any other valence states, such as Cr3+, Cr2+, Cr5+, and Cr6+. The method includes: 1) certain crystals of olivine structure with large cation (Ca) in octahedral sites such as Cr4+:Ca2GeO4, Cr4+:Ca2SiO4, Cr4+:Ca2GexSi1-xO4 (where 0<x<1), and/or 2) high-temperature solution growth techniques that enable the growth of the crystals below the temperature of polymorphic transitions by using low melting point solvent based on oxide, fluoride and/or chloride compounds. Purer Cr4+-doped laser materials are characterized by a relatively high concentration of Cr4+-lasing ion in crystalline host that makes these materials suitable for compact high power (thin disk/wedge) NIR laser applications.

Abstract: A surface-emitting type semiconductor laser includes: an upper mirror and a lower mirror each composed of alternately formed first semiconductor layers and second semiconductor layers; an active layer disposed between the upper mirror and the lower mirror, wherein the surface-emitting laser emits laser light in a direction in which the first semiconductor layers and the second semiconductor layers are formed; a thick film layer formed with one of the first semiconductor layers composing the lower mirror, the thick film layer being thicker than other of the first semiconductor layers; and a third semiconductor layer provided between the thick film layer and one of the second semiconductor layers on the thick film layer, the third semiconductor layer having a refractive index between a refractive index of the first conductive layer and a refractive index of the second semiconductor layer.

Abstract: A nitride semiconductor laser element, comprises a substrate, a nitride semiconductor layer laminated over said substrate and having a ridge on its surface, and an electrode, wherein a first protective film is formed so that an air gap is located on at least part of the region extending from the side of the ridge to the surface of the nitride semiconductor layer on both sides of said ridge.

Abstract: The invention provides a cascaded injection resonator for coherent beam combining of laser arrays. The resonator comprises a plurality of laser emitters arranged along at least one plane and a beam sampler for reflecting at least a portion of each laser beam that impinges on the beam sampler, the portion of each laser beam from one of the laser emitters being reflected back to another one of the laser emitters to cause a beam to be generated from the other one of the laser emitters to the beam reflector. The beam sampler also transmits a portion of each laser beam to produce a laser output beam such that a plurality of laser output beams of the same frequency are produced. An injection laser beam is directed to a first laser emitter to begin a process of generating and reflecting a laser beam from one laser emitter to another laser emitter in the plurality. A method of practicing the invention is also disclosed.

Abstract: A frequency hopping system such as a Bluetooth system (300) can reduce the number of RF channels it hops during a normal hopping sequence cycle providing for a Reduced Hopping Sequence (RHS). A communication unit operating in the system such as the Bluetooth master unit (302) determines if any of the RF channels has interference. If any of the channels has interference, the Bluetooth master sends a message to one or more slave units (304, 306) informing them of which channels will be removed from the hopping sequence due to potential interference problems. The units will then use the new RHS for their transmissions, thus avoiding the interference problems (e.g., both avoiding interference in the system's receivers and avoiding creating interference on frequencies that are already occupied by other neighboring systems).

Abstract: A base station transmission apparatus for transmitting MAC (Medium Access Control) ID (Identification) information indicating a terminal to receive transmission packet data and length information of the transmission packet data in a mobile communication system for high-speed packet transmission, having an encoder for encoding a bit stream indicating the MAC ID information and generating coded symbols; a Walsh cover section for Walsh-covering the coded symbols from the encoder with a Walsh code based on the length information; and a Walsh spreader for spreading the Walsh-covered symbols from the Walsh cover section with a predetermined Walsh code.

Abstract: A spread spectrum noise shaper uses a modulation technique to achieve a greater signal-to-noise or signal-to-interference ratio (SNR or SIR). The technique doubles the system SIR, in principle. This doubling yields a doubling in system capacity. SNR is increased by receiving the spread spectrum signal in the presence of less noise near the edge of the spread spectrum bandwidth. The technique requires only small additions to a conventional spread spectrum system, in the form of an extra modulator at the transmitter, and an extra demodulator and filter at the receiver.

Abstract: Method for transmitting a word representative of transmission parameters respectively allocated to the mobile stations in communication with a base station of a mobile telecommunication system, wherein it includes the step of: including, in each transmission burst a midamble resulting from the sum of selected midambles among all the available midambles, said selection being done by said base station in relation with a word so that the selected midamble corresponds to a binary element of said word equal to a first value and a non-selected midamble corresponds to a binary element of said word equal to a second value, and considering a word the elements of which are in one-to-one relationship with the temporal positions of the estimations respectively corresponding to said available midambles.

Abstract: Communication and broadcast system for Time Division Multiple Access (TDMA), spread spectrum, filtered signal and cross-correlated in-phase and quadrature-phase baseband signals for Radio Frequency (RF) tunable or RF agile transmitters. A selector and connection device provides selection and connection of one or more of the TDMA, spread spectrum, filtered or cross-correlated baseband signals and or modulated signals to a transmitter. A first baseband and or modulation circuit provides spread spectrum signal, a second baseband and or modulation circuit provides TDMA signal, a third circuit provides filtered and or cross-correlated baseband and or modulation signals to a selector for selecting either one or more modulated signals and providing the selected signals to the transmitter.

Abstract: A spread spectrum signal is processed by correlating the spread spectrum signal with a spreading sequence at a first plurality of correlation times to produce a first plurality of time-offset correlations. The first plurality of time-offset correlations is processed to produce a first symbol representation for a symbol. A first quality is determined for the first symbol representation. Responsive to the determined first quality, it is determined whether to further process the first symbol representation or to process a second symbol representation for the symbol generated from the spread spectrum signal. The first quality may be determined, for example, by decoding the first symbol representations to generate a decoding metric or error check indicator, such as a CRC result. The symbol representations may be generated and/or evaluated for quality in a serial fashion or a parallel fashion.