Abstract: A technique of allocating data cells by a segmentation and reassembly (SAR) controller for transmission on a network connection such as an asynchronous transfer mode (ATM) network connection provides a scaleable sustainable cell rate (SCR) when the sum of the SCRs of virtual circuit exceeds the connection bandwidth. In addition, bandwidth can be shifted from a VC which is using less than its allocated SCR to a VC that is exceeding its SCR. In addition, the method enables a VC to exceed it peak cell rate (PCR) to some extent. The method and system of the disclosed embodiment can also be employed to dynamically adjust SCRs and PCRs in a variable bandwidth channel and is programmable and thus more flexible and less expensive than possible hardware solutions.

Abstract: A networking method for a wireless point base station to a plurality of users where the users are stationary and which utilizes time-division multiplexing in the downstream direction of the base station to the user, including downstream frame timing, comprising providing time-division multiple access in the upstream direction of the user to the base station. Medium access is achieved by actively controlling assigning frame time slots in the upstream direction to accommodate varying demands for bandwidth by multiple users. The upstream frame time slots are synchronized to the downstream frame timing, the time slots carrying individual ATM cells, the first time slot of the downstream frame carries a frame start ATM cell. Upstream time slot synchronization is maintained to within ±2 modulation symbols through timing control from the base station to the user.

Abstract: A bus connection controller in a voice processing is for managing the connection of a timeslot on a time-division multiplex (TDM) bus to a port on an adapter. The voice processing system includes basic time-division multiplex (TDM) connection management to enable the coordination of connections between resources such as channels on line cards (SPacks or VPacks), and channels on digital signal processor (DSPs) cards that provide, amongst others things, voice recognition, text-to-speech, fax capabilities and so on. Problems are encountered when a telephone call in a voice processing system ends suddenly because one of the callers hangs up. If the telephony channel has connections with other channels or resources via a TDM bus, callers may hear spurious data. To address this problem each call is associated with its corresponding connection on the TDM bus and each connection is associated with its connection details including the adapters and ports involved in connecting the calls.

Abstract: A Computer and/or Peripheral Networking Device, requiring Shielded Twisted Pair cabling and using a standard Buffer Insertion-based implementation, that allows Buffer Insertion-based devices to utilize the most commonly installed Unshielded Twisted Pair cabling, and to provide, when needed, a bypass mechanism that ensures that a node connected in a string of standard Buffer Insertion-based devices will not isolate, or otherwise disable other nodes if it goes off-line for any reason.

Abstract: Described herein is a system and method of disabling D bits in a CT2 MUX signaling channel. When the bit count equals the bit location of where the D bits are typically located in the signaling channel of a CT2 MUX, circuitry of the present invention disables a D bit enable signal from being processed. The D bit enable signal would typically allow a transmitter and receiver to, respectively, send a bit as a D bit, or process a received bit as a D bit. The suffix of the CT2 MUX, consisting of D bits, is unaffected by the present invention.

Abstract: The present application concerns a server system for delivering signals. Particularly, the application concerns a server system capable of efficiently delivering continuous signals. In the present invention a plurality of reproducing devices are used and connection thereof with a plurality of channels is successively altered so that plural reproducing devices are not connected to one channel simultaneously. This alteration is always carried out or this alteration is carried out according to a pattern preliminarily set so that plural reproducing devices are not connected to one channel simultaneously, whereby upon start of delivery to a certain channel, the delivery can be started without consideration on the delivery conditions of signals to the other channels at that time.

Abstract: A system is provided for recalculating multicast trees by identifying a network change associated with a network area. In response to the network change, forwarding entries in the network area are recalculated. Additionally, the system recalculates forwarding entries affected by the changed summary information in other areas resulting from the identified change. Forwarding entries associated with a group may be recalculated in response to receiving a new group membership link state advertisement (LSA). The system determines whether the originator of the LSA is reachable from a calculating router. If the LSA is reachable from the calculating router, then the forwarding entries associated with the group are recalculated. If the LSA is not reachable from the calculating router, then the forwarding entries associated with the group are not recalculated.

Abstract: A data structure, such as a telecommunications connection map, comprises at least one list of data elements which are stored in a predetermined sequence of locations of a memory device. The structure is updated by moving a portion of the list through the sequence of memory locations so as to insert a new element into, or delete or change an existing element at, a particular position in the structure while maintaining the order of the list. Elements of the structure are accessed in the sequence in which they are stored and the structure is updated during the accessing of the structure by moving elements through the sequence of memory locations. A particular application of this invention is in maintaining a connection map for a telecommunications switch, the map storing connection instructions defining into which ATM cell payload received narrowband call data is assembled.

Abstract: Method and apparatus for synchronizing to a reference signal the timing of a received composite, code phase SATPS signal, such as a GPS or GLONASS signal, that consists of a preferred, interference-free signal distorted by at least one interfering signal, to determine an undistorted timing point, such as the preferred signal time of arrival. A first autocorrelation function ACI(&tgr;) is generated between the preferred, interference-free signal and a reference signal that replicates the preferred signal, as a function of the time shift &tgr; between the two signals. A second autocorrelation signal ACM(&tgr;) is measured between the reference signal and the incoming signal.

Abstract: A packet switching fabric includes a data ring, a control ring, a plurality of network links each coupled to at least one network node, and a plurality of switching devices coupled together by the data ring and the control ring so that the network links can be selectively communicatively coupled.

Abstract: Methods for managing multiple queues of ATM cells in shared RAM while efficiently supporting multicasting include providing a common memory for storing ATM cells and for storing at least one pointer to each ATM cell stored, providing a management memory for storing an index to the pointers stored in common memory, a table for each multicast session, and an index to the free space in common memory. According to the presently preferred method, cells entering the switch are examined, placed in shared RAM, and a pointer to the RAM location is written in another location in the shared RAM. Table entries in management RAM are updated each time a cell is added to a queue. When a multicast session is begun, a multicast table is created with all of the addresses in the multicast session. When a multicast cell is received, the multicast session table is consulted and pointers to the cell are copied to queues for each address in the table.

Abstract: A telephone network provided with an Internet connection and a call routing and control data base connected to the Internet is further provided with multiple geographically separated voice messaging systems connected to the Internet. Calls through the telephone network may be directed to such voice messaging systems or may be forwarded to such systems. Messages may be deposited in mailboxes in such voice messaging systems and then retrieved from telephone stations located sufficiently near the voice messaging systems as to entail no long distance or time toll charges. Return call service may be provided in a manner to avoid long distance or time telephone tolls through use of the Internet connected data base which routes calls which would incur a toll charge through the Internet.

Abstract: A mobile terminal and method of controlling the same, each that can integrally move between an infrastructure network and an ad hoc network. The mobile terminal can interconnect to an infrastructure network and an ad hoc network while moving. In an address management process, a connection network identification process, and a destination address capture process which are needed to establish communications with the terminal connected to a network, an infrastructure network connection procedure is integrated with an ad hoc network connection procedure. The integrated configuration consists of an ad hoc/ infrastructure network address management means, an ad hoc/ infrastructure integration move management means, an ad hoc/ infrastructure network integration destination address capture means. In each process, it is identified whether or not the mobile terminal is connected to an ad hoc network or infrastructure network, so that the procedure corresponding to the connected network is used.

Abstract: A statistical time division multiplexer facilitates distribution of data from various sources through a wireless transmission system to a plurality of subscriber stations within a cell reception area. Controlled logical token passing governs a variable token interval for data transmission from each buffer, associated in a base station with a respective receiving subscriber station, in turn to form a common data stream. Each subscriber may be assigned a minimum transmission time interval during which data, if present in the associated buffer, will be transferred. Data may be fed from the buffers in successive time intervals at bit rates that can vary from interval to interval. Variations of data transmission rate and token interval for each subscriber can be separately controlled on the basis of both presubscribed levels and current quality of service levels of the radio link. Channel quality and/or bit error rate for each channel may be fed back dynamically from the user for each token interval.

Abstract: The invention provides for conversion of latitude and longitude to an addressing scheme that supports current TCP/IP (Ipv4) and future addressing (Ipv6/Ipng) requirements. More specifically, it allows a decentralization of the unicast point to a device on the hosted network. Geographical Internet Protocol (geoIP) addressing will facilitate anycast routing schemes where in which the nearest node has a statically assigned geoIP. geo routing, and network management become a function of the geoIP address.

Abstract: A selective call device (106) for monitoring at least two communication systems. The selective call device (106) has a receiver (204) for receiving information from a first communication system (110), a processor (206) for referencing a time slot assignment on the first communication system (110) to a common time base. The processor (206) calculates timing information relating a common time base and a transmitter (222) transmits the timing information to the second communication system (120) informing the second communication system (120) when to transmit information to the selective call device (106) with reference to the common time base.

Abstract: An advanced intelligent network gateway that allows communication between telecommunications network component that use different protocols. In one embodiment, the advanced intelligent network gateway is used to communicate between a manual operator console that are processing a customer's telephone call and a service data point which is a database containing information needed to process the customer's telephone call. However, the advanced intelligent network gateway may also be used to receive and transmit messages between other telecommunications components. In addition, methods for protocol conversion are described. One method for protocol conversion is for the conversion of a transaction capabilities application part message from a user datagram protocol/internet protocol implementation to a transmission control protocol/internet protocol implementation or vice versa. Methods for receiving and transmitting transaction capabilities application part messages are also described.

Abstract: In a first UPC, a PCR is set as a monitor rate for each connection. If a transfer rate of a cell exceeds the PCR set for the connection, the cell is discarded. In a second UPC, an ACR is set as a monitor rate for each connection. If the transfer rate of the cell exceeds the ACR set for the connection, a lower priority is assigned to that cell. Additionally, with a configuration where one UPC monitors a varying rate, a parameter change process is controlled by obtaining a time between a passage time of a detected B-RM cell and an arrival of a user cell and comparing the obtained time with maximum and minimum delay standard values. A parameter table including some parameters is provided. A header of an arrived cell in a forward direction is extracted, and it is determined whether or not the arrived cell is a violation cell using the leaky bucket algorithm, etc. If the arrived cell is a violation cell, it is discarded.

Abstract: An ATM cell converting apparatus and method provided with a tone and DTMF generating function generates tone and DTMF which are necessary to a switching system and outputs to a TDM network channel data of an ATM cell type which are read from a cell buffer of a memory unit or tone and DTMF which are read from a tone and DTMF register in accordance with a function type of a data converting unit.

Abstract: A method and an apparatus for locating a fault within a token ring network are described. The apparatus comprises a number of detectors, each of which is positioned at a location between a pair of neighboring network stations. Each detector maintains an indication of whether beaconing data is detected at the monitored location. After a period of time, a fault identifier, in the form of a Network Management Module (NMM), can identify the location of a network fault by locating successive indications, maintained by successive detectors, which differ from each other.