Abstract: A system for mapping a location of an electronic equipment in a defined area. The system comprises of a server which is typically a data processing system. An activation signal is sent to the electronic equipment. In response to the activation signal, the electronic equipment emits a pre-defined signal containing a unique signature of the electronic equipment. The signal is captured by a device connected to the server with a known location in the defined area. The server utilizes the known location of the device along with the unique signature of the electronic equipment to identify/determine the location of the electronic equipment.

Abstract: A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of exchanging voice signals between a switched circuit network and a packet based network. The signal processing system also includes a data exchange capable of exchanging data signals modulated by a voiceband carrier on the switched circuit network with unmodulated data signal packets on the packet based network. The data exchange is performed by demodulating data signals from the switched circuit network for transmission on the packet based network, and modulating data signal packets from the packet based network for transmission on the switched circuit network. The call discriminator is used to selectively enable the voice exchange and data exchange.

Abstract: An improved method for identifying a bus topology, even when the bus contains one or more loops between nodes. The invention allows the tree identification process to be resolved within a known maximum amount of time. The method uses a superset of a globally unique ID as part of the tree identification process. After a bus reset, nodes repeat a highest priority number constructed from the GUID. At the end of a fixed time, all nodes become stable and their ports are sending either their own priority number which is the highest priority number on the bus, repeating such number, or sending a submission marker. The submission marker is a signal condition or a packet of information that indicates that a port is a child with respect to a sending port. A node becomes a root node if it is sending a priority number that matches its own priority number. Nodes with ports that neither send nor receive a submission marker, mark such ports as “loop branches” and disable them from the bus topology.

Abstract: A transport protocol that meets the requirements and performance for multimedia data transfer in a wireless link includes a transmitting/sending station and a receiving station. The inventive protocol is referred to as the Burst-oriented Transport with Time-bounded Retransmission (BTTR). This scheme uses a large transmission window for sending/receiving a burst of time-sensitive data and, within this window, several smaller observation windows are used for dynamic error retransmission. There is a time limitation on each retransmission such that the burst of data can be received in a timely manner, and thus trading some packet losses (still in an acceptable range) for delay and throughput performance. Specifically, the wireless network includes a wireless station for transmitting data over a wireless link. The sending station transmits a plurality of sequential data packets to the receiving station, wherein each plurality of sequential data packets form a respective Group-of-Packet (GOP).

Abstract: An originating switch (110) in a packet-based telecommunications network (100) routes calls to a terminating switch using the combination of Success-to-the Top (STT) and Class-of-Service criterion. In routing a call to the terminating switch, the originating switch 110 checks for available bandwidth for the class of service of the call on the direct path (116) between switches. If the path has available bandwidth, the originating switch routes on the direct path. Otherwise, the originating switch searches for the most recently successful one of a plurality the via switches (1181-118n) linking the originating and terminating switches to determine whether that via switch can successfully route the call to the terminating switch. If the most recently successful one of the via switches possesses available bandwidth to route the call in accordance with its class of service, the originating switch 110 selects that via switch to route the call.

Abstract: A reshaper is provided in a DLC (Data Link Control) layer of a WLAN (Wireless Local Area Network) system. The system can be configured to support various link and network protocols such as ATM (Asnynchronous Transfer Mode), Ethernet and IP (Internet Protocol). The DLC reshaper overcomes time distortion of a stream of packets or cells that is introduced as the stream passes through the WATM, by restoring or maintaining proper time intervals between packets or cells in a stream. Thus, an output stream of packets or cells from the DLC reshaper is not slipped or shifted in phase, and does not include jitters. The DLC reshaper uses ARQ (Automatic Repeat Request) sequence numbers of the packets or cells to detect when one or more packets are discarded or lost. The DLC reshaper can determine time intervals for packets or cells in a stream based on a PCR (Peak Cell Rate) for the connection that is being supported, and ARQ sequence numbers of the packets or cells.

Abstract: The present invention provides a system and method for reliably transferring Dual Tone Multiple Frequency (DTMF) signals originating at a MS through an IP based GSM network. In general, when a MS sends a DTMF request, it is processed in the IP network by a logical application module in a MSC, which, based on the disclosed processing, activates another logical application module in an appropriate gateway (for independent, remote, tone generation), and then the logical application module in the gateway directs the production of the DTMF signal towards the interworking or destination network.

Abstract: An SDH transmission unit which processes various classes of digital bitstreams regardless of their levels of the SDH multiplexing hierarchy, harmonizing the signal formats handled in its integral cross-connect facilities. High-order group transmission units are installed in their dedicated high-order group slots on a mounting rack, and through the wiring on a backplane, they are connected to high-order group ports of a cross-connect unit installed in the same rack. Similarly, low-order group transmission units are installed in dedicated low-order group slots on the mounting rack, and connected to low-order group ports of the cross-connect unit through the backplane. Both high-order and low-order group transmission units are designed to send and receive multiplexed signals at a predetermined level of the SDH multiplexing hierarchy.

Abstract: To provide an information repeater system capable of selecting a desired broadcasting program with a simple construction, in the information repeater system for receiving a broadcasting wave formed by multiplexing plural broadcastings and distributing it to the corresponding channel of a specified broadcasting system. Data streams D25A, D25B, . . . D25N relayed by specified transponders are extracted from the broadcasting wave S1. Arbitrary packets D32A, D32B, . . . D32N are specified and extracted from the above data streams. Thus extracted packets are transmitted to the specified channel of the specified broadcasting system. Thereby, the desired channel can be transmitted to the desired channel of the specified broadcasting system from among the plural broadcastings multiplexed in the broadcasting wave.

Abstract: The present invention provides a management system and method for a telecommunications system, the telecommunications system having a plurality of objects representing elements of the telecommunications system and/or operations that may be applied to those elements. The management system comprises a management controller connectable to an item of telecommunications equipment of the telecommunications system for passing messages over a communications link between the management controller and a management element of the telecommunications system to invoke management operations. Further, the management system comprises means for defining a number of messages which may be generated by the management controller or the management element for passing over the communications link, each message being arranged to include one or more information elements.

Abstract: A system is presented for transmitting document references or tokens to users of integrated wireless and wire-based communication services. The system includes workstations, files servers, printers and other devices coupled to a wire-based network. Mobile computing devices are coupled to the wire-based network through either IR (infrared) or RF (radio) transceiver gateways. Each mobile computing device appears to hold a uses personal collection of documents: the device is programmed to receive, transmit, and store document tokens. A document services request available to users of the mobile computing devices is an email-to-token service. Using this service, document tokens are emailed to recipients with an email account. The transmission protocol for performing the email-to-token service includes the step of transmitting a token-to-email service request from the mobile computing device over the wireless communication service to a token-enabled server located on the wire-based network.

Abstract: An apparatus for maintaining copy information pertaining to data frames received by a multiport switch that forwards received data frames to plural output ports includes a random access storage area and a control logic, both of which are located on the switch. The random access storage area stores a copy number that indicates the number of output ports that have not yet transmitted their copy of a designated data frame. The control logic addresses specific fixed locations within the random access storage area using frame pointers that identify where the received data frames are stored in an external memory. The information maintained in the random access storage area is accessible to all components of the multiport switch.

Abstract: A method and apparatus for routing cells having different formats among service modules of a switch platform are provided. The cells are routed among service modules of a switch by a cell bus controller (CBC) using a first memory to convert an address having a first format into an address having a second format. The address having the first format is received in a header of a cell, and the address format comprises a 17-bit cell bus logical connection number of a destination port. The address having the second format is a 16-bit UDF used by a switch of the switch platform. The address having the first format is used to form a third address that is used to access the first memory. The data located at the third address of the first memory is a 16-bit UDF used to address the switch. A second memory is used to convert an address having the second format into an address having the first format. The address having the second format is used as a fourth address to access the second memory.

Abstract: A novel multi-port network transceiver having an LED interface supporting parallel and serial LED modes. The LED interface has a pair of LED pins for each port. In the parallel LED mode, one pin of this pair represents status of a 10 Mb/s communication, whereas another pin represents status of a 100 Mb/s communication. In the serial LED mode, status information for all ports is transferred using 3 pins supplying a serial data stream, a frame signal and a clock signal. The serial data stream is composed of frames, each of which represents various events for the multiple ports. The frame signal is used to identify the boundary between the frames. The transfer of the serial data stream is synchronous to the clock signal.

Abstract: A base station architecture splits modem functionality into modulator and demodulator entities, each configured to handle multiple telephone calls. A high-speed digital bus with associated routing elements connects multiple-channel (i.e., multiuser) modulator and demodulator elements. The modulator and demodulator elements may be physically separated, residing on different cards, and even different shelves, within the base station. On each modulator card, the outputs of multiple modulators may be combined by digitally upconverting the output of each modulator by a different amount and summing the results.

Abstract: The invention concerns a method and system for interactive communication between at least two users each provided with a telephone set of the switched telephone network, via the Internet. Each telephone set is directly locally connected to an associated interface device. The first user, who initiates the communication, dials on his set the telephone number of the second user indicating to his interface device that he wishes to communicate via the Internet. The interface device of the first user the connects with the interface device of the second user via the Internet, the two telephone sets being rung off. Once the connection has been established via the Internet, each interface device indicates to its associated telephone set, then each of the users picks up his set and communicates interactively with his correspondent via the Internet.

Abstract: In an orthogonal frequency division multiplexing (OFDM) based spread spectrum multiple access system the entire bandwidth is divided into orthogonal tones, and all of the orthogonal tones are reused in each cell. To reduce peak-to-average ratio at the mobile transmitter, each voice user is allocated preferably a single one, but no more than a very small number, of the orthogonal tones for use in communicating with the base station. Data users are similarly allocated tones for data communication, however, the number of tones assigned for each particular data user is a function of the data rate for that user. The tone assignment for a given user is not always the same within the available band, but instead the tones assigned to each user are hopped over time. More specifically, in the downlink, the tones assigned to each user are change relatively rapidly, e.g., from symbol to symbol, i.e., the user fast “hops” from one tone to another.

Abstract: A fiber channel interface controller incorporating a cost-efficient hardware implementation of the fiber channel arbitrated loop initialization protocol. Cost efficiency is achieved by determining the minimal buffer size required for storing information extracted from fiber channel arbitrated loop initialization frames and including in the fiber channel interface controller a memory buffer having this calculated minimum size. The inherent buffering capacity within all FC ports of the arbitrated loop and the ability to generate, on the fly, large portions of fiber channel arbitrated loop initialization frames, rather than storing and forwarding entire fiber channel arbitrated loop initialization frames, both combine to decrease the memory buffer size requirements for the fiber channel interface controller and to decrease the time required to carry out fiber channel arbitrated loop initialization.

Abstract: A method of configuring a network management network (10) including a computer network (20), a network management system (30), and a data link (40) for coupling the computer network to the network management system includes determining at least one network management parameter for the network management network (10), including the number of network devices (22) on the computer network (20). The method also includes calculating a data link (40) capacity in response to determining the at least one network management parameter and the number of network devices (22) and configuring (160) the network management network (10) in response to determining the at least one network management parameter and calculating the data link (40) capacity.

Abstract: A pilot adaptive vector correlator for estimating channel-impulse response and for obtaining a reference value of received multipath signals in a spread-spectrum system. A code generator generates a plurality of replicas of a pilot-spreading-code signal, with each replica of the pilot-spreading-code signal having a different phase from other replicas in a plurality of replicas of pilot-spreading-code signals. Each correlator in a plurality of correlators uses a replica of the pilot-spreading-code signal with a different phase from the other correlators in the plurality of correlators. The plurality of correlators correlates the spread-spectrum signal with the plurality of replicas of the pilot-spreading-code signals.