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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 6879577 | Method and apparatus for determining frame quality in mobile communication system A method and apparatus for determining frame quality in a mobile communication system determines frame quality by estimating a received SIR without using a CRC under a control hold state in which PCBs are only transmitted while no data transmission actually occurs. ... | 04/12/2005 |
| 6862453 | System and method for distributed call processing using a distributed trunk idle list A controller that monitors usage status of trunk lines associated with a switch that operates to handle call connections between calling devices and called devices on trunk lines associated therewith. An exemplary controller comprises N call application nodes capabl... | 03/01/2005 |
| 6856600 | Method and apparatus for isolating faults in a switching matrix A signal router is described. The signal router includes a switching matrix, an error detector and a controller. The switching matrix includes a first number of inputs and a second number of outputs, and is configured to receive an information stream. The error dete... | 02/15/2005 |
| 6850704 | Low-overhead fault-tolerance techniques for optical and other cross-connect systems Fault tolerance is provided in a cross-connect system having only duplicated switch fabrics, instead of the triplicated switch fabrics of the prior art. In addition to the two information switch fabrics, the cross-connect system has a relatively small code switch fa... | 02/01/2005 |
| 6850487 | Method and apparatus for guaranteeing a failure-recovery time in a wavelength-division multiplexing network One embodiment of the present invention provides a system that guarantees a stated failure-recovery time in an optical wavelength-division multiplexing (WDM) network. The system operates by first receiving a request at an ingress node of the WDM network to establish... | 02/01/2005 |
| 6847608 | Path management and test method for switching system The present invention relates to a switching system, and in particular to a path management method for a switching system which is capable of periodically checking a path state of each hardware board in a switching system of a dual active structure, managing the che... | 01/25/2005 |
| 6834041 | Apparatus and method for monitoring the switching paths of a time/space coupling network An apparatus and a method are provided for monitoring the switching paths of a time/space coupling network in a coupling network (SN), having an originating address generator (UAG) for generating an originating address (UA) to be switched, a target value address gen... | 12/21/2004 |
| 6829478 | Information management network for automated delivery of alarm notifications and other information A remote Information Management Network routing system located either at an independent hosting facility or at a central station monitoring facility that receives event and alert information from a security or premise monitoring system and sequentially transmits int... | 12/07/2004 |
| 6826155 | Apparatus and method for facilitating standardized testing of signal lines The present invention provides for an apparatus and a method for testing and evaluating a transmission line. A set of command and data signals is received through an input/output interface. The command and data signals from the input/output interface are processed f... | 11/30/2004 |
| 6822941 | Method and network element for relaying event messages An explanation is given of a method for operating a telecommunications network in which a network element at a network node of a telecommunications network is controlled by a switching computer. Event messages containing details about events occurring during the ope... | 11/23/2004 |
| 6816461 | Method of controlling a network element to aggregate alarms and faults of a communications network A distributed method and system of controlling a communications network having a plurality of spans of interconnected network elements some of which include a network element processor distributes network topology information to respective span databases; stores ori... | 11/09/2004 |
| 6816550 | Image signal coding apparatus with bit stream buffer of reduced storage capacity The number of stuff bytes to be inserted is calculated using a stuff code inserter in a difference detection circuit, inserted as a stuff code into a bit stream of coded data and stored into a bit stream buffer. The stuff code is detected in a multiplexed bit stream... | 11/09/2004 |
| 6807153 | Method for testing the availability of the signalling points of a switching network Method for testing the availability of signaling points which switches through messages in digital form, the MRVT (Message Transfer Part, Route Verification Test) protocol method standardized in the Recommendations Q751.1, Q753 and Q754 of the ITU-T is inventively d... | 10/19/2004 |
| 6798740 | Method and apparatus for switch core health monitoring and redundancy A method and apparatus selecting between primary switching fabric in an asynchronous transfer mode (ATM) network includes a Tap Mux controller that monitors the signals being transmitted to each of four fabric access devices. As each of the fabric access devices rec... | 09/28/2004 |
| 6795393 | Method and apparatus for errorless path protection and rearrangement An apparatus and a method for cross connect matrices includes originating, center and terminating stages in both a main portion and a back-up portion that allows center stages to be switched without causing a framing error. The signal from the main portion is transm... | 09/21/2004 |
| 6788934 | Test system for remotely testing switches within a telecommunications network A system for centrally and remotely testing switches of cellular and conventional telecommunications network wherein a controller located at a remote location provides instructions to Remote Call Processor (RCP) to thereby prompt the RCPs to establish a communicatio... | 09/07/2004 |
| 6789130 | Automatic rate adaptation system in a local area network Automatic speed adaptation system in a Local Area Network (LAN) between a hub (10) including a hub adapter (20, 24, 28) and at least a workstation (12, 14, 16) including a workstation adapter (18, 22, 26) for exchanging data over a link c... | 09/07/2004 |
| 6785225 | Communication apparatus and communication system A communication system including two layers, each having a switching function. The two layers includes lower-layer apparatuses which are connected with communication lines of a lower layer and communication lines of an upper layer and upper-layer apparatuses which a... | 08/31/2004 |
| 6778823 | Method for testing the quality of mobile radio networks The invention relates to a method of testing the quality of mobile wireless networks which rules out subjective influences as much as possible in the evaluation of quality. According to this invention, a number of test subscribers are equipped with mobile wir... | 08/17/2004 |
| 6775229 | Method and system for providing a protection path for connection-oriented signals in a telecommunications network A system is provided for providing a protection path for connection-oriented signals in a telecommunications network comprising a plurality of nodes. The system includes a source node, a destination node and a penultimate node. The source node is operable to transmi... | 08/10/2004 |
| 6775236 | Method and system for determining and suppressing sympathetic faults of a communications network A distributed method and system of controlling a communications network having a plurality of spans of interconnected network elements some of which include a network element processor distributes network topology information to respective span databases; stores ori... | 08/10/2004 |
| 6775237 | Methods and apparatus for burst tolerant excessive bit error rate alarm detection and clearing The excessive bit error rate detection algorithm operates in two modes: BURST mode and non-BURST mode. In non-BURST mode, an alarm state is entered if an error count exceeds a threshold within a set number of frames and exits the alarm state when the error count sta... | 08/10/2004 |
| 6765874 | ATM service disruption measurement A data analyzer system measures the duration of a service disruption event in an asynchronous transfer mode (ATM) data transmission channel carrying an ATM stream of identifiable data cells in a defined order. The data analyzer system determines whether or not any o... | 07/20/2004 |
| 6763021 | Monitoring switching method and apparatus for redundant part of transmission apparatus Different signal patterns are inserted in different time slots within a vacant slot for signals passing through redundantly configured units. A selector, which selects one of the units as a working unit, is controlled to select the inserted signal patterns in sequen... | 07/13/2004 |
| 6762998 | Access network system In an access network system for performing a maintenance management of an access line, a processor stores an allocation status of a bearer channel to be managed, and a system manager determines an availability status of the access line based on the allocation status... | 07/13/2004 |
| 6757254 | ATM switching apparatus applicable to short cell An ATM switching apparatus applicable to a short cell including an ATM-SW outputting a cell from an output path corresponding to a cell identifier, an interface unit, a demultiplexer, and a multiplexer. The interface unit sets, when a cell storing a plurality of sho... | 06/29/2004 |
| 6757242 | System and multi-thread method to manage a fault tolerant computer switching cluster using a spanning tree A system, method and computer program to detect and recover from a communications failure in a computer network. The computer network has several nodes which include processor-based systems, input/output controllers and network controllers. Each node has a cluster a... | 06/29/2004 |
| 6754730 | Intelligent apparatus for sharing a user I/O interface among all intelligent modules thereof An intelligent apparatus comprises a master module and a plurality of slave modules each having a CPU, a control circuit and an associated software, wherein each of the slave modules is in communication with the master module, and the CPU of the master module may co... | 06/22/2004 |
| 6751188 | Method and apparatus for a graceful controller switchover A method and apparatus for switching from a primary network controller to a secondary network controller. A switchover request is received. Messages accepted by the node from the peer nodes are limited. An active link is maintained between the node and peer nodes. F... | 06/15/2004 |
| 6748467 | High speed data transfer between mainframe storage systems A local disk system in a local mainframe computer includes one or more local disk units. Data in at least one of the local disk units are backed-up to a designated remote disk unit in a remote disk system. Data transfer between the local disk system and the remote d... | 06/08/2004 |
| 6738355 | Synchronization method for multi-probe communications network monitoring A method of synchronizing the operation of a plurality of measurement probes enables multi-point measurements of a communications network. The method comprises the step of collecting data packets from a data stream of the communications network using the plurality o... | 05/18/2004 |
| 6732182 | Method for generating packet loss report by a data coordinator in a multicast data transmission network utilizing a group shortest path tree A method and apparatus to measure multicast performance over a network is described. A data coordinator coordinated a multicast protocol test between a data sender and a plurality of data receivers. A first shortest path tree is created from an intermediate device t... | 05/04/2004 |
| 6721269 | Apparatus and method for internet protocol flow ring protection switching A router in accordance with the principles of the present invention employs explicit routing protocols to establish a plurality of explicitly routed label switched paths between source and sink routers. The sink router selects one of these explicitly routed paths as... | 04/13/2004 |
| 6714549 | High resiliency network infrastructure The invention provides a highly resilient network infrastructure that provides connectivity between a main network such as the Internet and a subnetwork such as a server-based (e.g., web server) local area network. In accordance with the invention, a network interfa... | 03/30/2004 |
| 6697327 | ATM switching system An ATM (Asynchronous Transfer Mode) switching system which enables processing of system switching to be implemented in short time while maintaining prescribed service quality on the occasion of system switching. There is provided a delay priority selector... | 02/24/2004 |
| 6693875 | Communication network system A communication network system has a plurality of communication terminals, each having a first transmitting unit and a first receiving unit. Information is transmitted and received among the communication terminals through the first transmitting unit and ... | 02/17/2004 |
| 6691167 | Method and apparatus for network problem segment isolation Method and Apparatus for Network Problem Segment Isolation. The present invention provides a method for characterizing network segment quality for a segment transmitting messages from a first endpoint to a second endpoint on a network. The method includes... | 02/10/2004 |
| 6687231 | System and method for ensuring operations of redundant signal paths in a communication system A system and method for enhancing reliability in a communication system. In the system and method, redundant signal paths are continuously tested to determine if any faults are present while the operating signal paths are in use. If any faults are present... | 02/03/2004 |
| 6683890 | Method and circuit for improving the pointer processing in synchronous digital hierarchy (SDH) transmission frames A method and circuit are described for improving the pointer processing in the case of synchronous digital hierarchy (SDH) or synchronous optical network (SONET) transmission frames with VC4_4c, VC4_16c and VC4_64c concatenated payloads. The technique pro... | 01/27/2004 |
| 6683855 | Forward error correction for high speed optical transmission systems Memory requirements and processing delays associated with the application of forward error correction in high speed optical transmissions are substantially reduced by mapping a forward error correction code on a row-by-row basis into unused overhead bytes... | 01/27/2004 |
