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6215763 |
Multi-phase process for distributed precomputation of network signal paths
Distributed precomputation techniques for determining primary and/or restoration paths in an optical or electrical network. The invention provides a number of partially and fully asynchronous...
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6215764 |
Method and apparatus for detecting the network link status of computer systems
A method and apparatus for detecting the link status of a network device in a computer system. An automatic link status detection mechanism allows a system to operate intelligently in a normal...
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6212191 |
Method and system for providing security to asynchronous transfer mode emulated local-area networks
A method for providing a security mechanism to an Asynchronous Transfer Mode (ATM) emulated local-area network (LAN) is disclosed. The ATM emulated LAN is served by a LAN Emulation Server (LES), a...
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6212206 |
Methods and computer executable instructions for improving communications in a packet switching network
Software and methods are provided for improving contemporary communications between two or more terminal locations of a packet switched network. In a packet switched network incoming packets are...
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6208616 |
System for detecting errors in a network
A system is described for providing fault tolerance within a computer system. The system provides a method for allowing multiple network interface cards to reside within the same computer system....
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6208617 |
Channel tracking in a mobile receiver
An effective receiver is achieved for situations where the receiver is mobile, and may be traveling at relatively high speed, and where the receiver's internal demodulation oscillator causes a...
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6205137 |
Multimedia processing system with controller exclusively operating on extracted control signals
In a multimedia processing system, a switch receives, from a network, a request containing a control signal and a program signal when write mode is requested or a control signal only when read mode...
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6195329 |
Trouble releasing system and method for ATM logic IP subnetwork
The present invention provides a trouble releasing system wherein, in operation of an ATM logic IP subnetwork, interruption of communication by a stop of an address solution server is prevented....
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6189127 |
Method and apparatus for pat 2 bus decoding
A system for testing a bus is described. The system utilizes a tester which includes decompression circuitry to decompress digitized ADPCM signals transferred over a bus, data in the decompressed...
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6189122 |
Method and apparatus for controlling data retransmission
A method and apparatus for controlling a retransmission in a telecommunications system. A pointer, V(P), that points to the upper bound of retransmitted data frames in a receiver buffer is...
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H001940 |
System and method for dynamically mapping components within a telecommunications switching platform
In a telecommunications system, components which fail and have backup resources are dynamically remapped to insert the backup resource in place of the failed component. A configuration database...
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6178327 |
Method and apparatus for providing fault tolerance in frequency reuse wireless communication systems
A base station (106) is connected to several communication servers (114, 116, 118) by a corresponding number of communication links (128). Should one or more of the connections fail, the base...
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6175552 |
Disaster recovery in a telecommunications network
A synchronous telecommunications network comprises a number of rings each incorporating a plurality of multiplexers and each coupled to a switch via a respective master multiplexer. A disaster...
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6169725 |
Apparatus and method for restoration of internal connections in a home audio/video system
An apparatus and method for the restoration of internal connections of consumer electronic devices in a home audio/video network. The present invention automatically maintains and manages the...
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6169724 |
Egress network service monitor
A method of recognizing a call failure related problem occurring at an egress network of a telephone system wherein information relating to call failures occurring at the egress network is provided...
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6167025 |
Methods and apparatus for restoring connections in an ATM network
Methods and apparatus for detecting faults and restoring connections in networks including, e.g., ATM networks are described. The restoration methods of the present invention can be applied on an...
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6163678 |
Satellite packet terminal and method for transmitting packet data from the same
To carry out smooth data communication even when a radio communication channel with a satellite is in a fault state, it is judged whether the radio communication channel is in a fault state or not,...
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6154296 |
Telecommunications network having shared protect capacity architecture
An optical communications network configured in a shared protect capacity architecture. The network includes a plurality of shared and unshared nodes; a plurality of working lines connecting the...
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6154448 |
Next hop loopback
In a telecommunications network, broken connections can be detected and located through a next hop loopback technique. The next hop loopback technique involves the generation, transmission, and...
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6137774 |
System and method for dispatching commands to switching elements within a communications network
A system and method for dispatching commands to switching elements within a network in response to an outage comprising a control computer and a plurality of instructions resident on a memory...
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6137776 |
Switching station
A switching station for high or medium voltage offers a simple and practicable configuration for information transmission with a high security against failure. Panel devices are connected through a...
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6137775 |
Spare capacity planning tool
A spare capacity planning tool for planning spare capacity in a transport network during a multiple-span failure following a single failure event. The spare capacity planning tool simulates...
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6134671 |
System and method for dynamically generating restoration routes within a communications network
A system and method is disclosed for dynamically restoring communications within a network following an outage comprising a database containing the configuration of switching elements within the...
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6130619 |
Monitoring circuit for a communication device
A watch-dog type monitoring circuit for a communication device has a counter and a timer. The communication device outputs a communication signal including plural groups of pulse-string signals....
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6128277 |
Reliable array of distributed computing nodes
A system which uses redundant storage and redundant communication to provide a robust distributed server system.
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6125104 |
Network node for switching quality detector to incoming signal specified by request message from adjacent node
A network node comprises a cross-connect switch and a single signal quality monitor connected to one of the output ports of the cross-connect switch. The switch is controlled by a processor to...
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6122248 |
Data transmission system with bus failure recovery
A data transmission system capable of ensuring proper operation even when any nodes-to-bus connection, which is not allowed by restrictions, is made. The system implements data transmission among a...
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6122753 |
Fault recovery system and transmission path autonomic switching system
Setting of a bypass path upon occurrence of transmission failure, is applicable for large scale network. A system includes signaling means which makes judgment whether bypassing process is...
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6104695 |
Repair TTL computation and correction mechanism to perform localized repairs in a multicast data distribution setup/framework
Determination of a Time To Live ("TTL") hop count for repair data units transmitted from a repair head to a standard destination device in a communications network is facilitated for multicast...
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6097696 |
Optical layer quasi-centralized restoration
A wavelength-switching, mesh-based restoration method among a network of optical cross-connects (OXCs) is disclosed. The method is defined as "quasi-centralized" in that the network is first...
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6094145 |
Telecommunication management system
A telecommunication management system including management centers provides management services which communicate via management messages in both directions with telecommunication network elements...
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6088328 |
System and method for restoring failed communication services
A system and method for restoring telephone and data communication services provided by a primary computing resource when such primary computing resource fails, by providing a backup computing...
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6087958 |
Multi-stage routing switchers with sequential and non-repetitive distributive circuit interconnections
Large scale, multi-stage switching networks for selectively routing electrical signals from a plurality of inputs to one or more of a plurality of outputs. In one embodiment, the network is...
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6076181 |
Method and apparatus for controlling a retransmission/abort timer in a telecommunications system
A method and apparatus for controlling a retransmission/abort timer in a telecommunications system. A pointer, V(P), that points to the upper bound of retransmitted data frames in a receiver buffer...
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6072771 |
Detection of errors in table data
Method and apparatus for processing a datastream. The datastream contains systems data, which is in tables, other systems data, and payload data. The systems data is used, for example, to control...
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6061328 |
Integrated multi-fabric digital cross-connect integrated office links
An integrated multiple cross-connect system (10) having remotely located components interconnected by integrated office links is provided. The system (10) includes a broadband matrix (20), at least...
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6044064 |
Method and system therefor of confining path verification signals within a distributed restoration network
In a restoration network including a distributed restoration algorithm (DRA) enabled network of a telecommunications network, path verification messages are embedded onto traffic bearing signals...
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6041037 |
ATM virtual path switching node
In an ATM virtual path switching node, upon being notified of a current virtual path by a virtual path monitoring unit, a link fault determination unit compares the number of faulty current virtual...
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6038211 |
Terminal for a bidirectional synchronous digital hierarchy link with automatic protection switching conveying multiplexed data
A terminal for a bidirectional synchronous digital hierarchy link with automatic protection switching conveying multiplexed data includes two send devices. Each send device includes a device for...
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6038212 |
Method and system for optimizing the connection set up time in high speed communication networks for recovering from network failure
This method enables optimizing the time required for reestablishing connections between end users attached to a data communication network, which connections were disrupted due to a network...
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6038210 |
Device for switching over double module
A switchover device switches over a double module between first and second modules manually or automatically, in which the control signals and switchover signals are generated with of the logic...
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6031818 |
Error correction system for packet switching networks
A system for correcting errors in the transmission of data packets between a source and a receiver. The source sends data packets to the client unit and server unit. The system uses the client unit...
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6031817 |
System and method for providing notification of malfunctions in a digital data network
A network comprises a plurality of switching nodes interconnected by communication links. The nodes transfer message packets thereamong over the communication links over paths defined through the...
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6026073 |
Route finding in communications networks
A method of determining a restoration route (or an additional route) in a fully or partially meshed communications network of nodes, in which the step of sending a route-finder signature from a...
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6006090 |
Providing roaming capability for mobile computers in a standard network
Roaming capability is provided to mobile computers within a standard network such as a Novell network. In a computer network running under a network operating system that provides for...
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5995485 |
Method and apparatus for isolating network failures by correlating paths issuing alarms with failure spans
A method and apparatus for analyzing a telecommunications network and isolating failures within the network first analyzes the network to identify all non-terminating paths between two digital...
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5978352 |
Multiplex transmission system
A multiplex transmission system is made up of a master load control unit which is connected to a multiplex transmission network and is capable of executing a multiplexing operation based on control...
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5968130 |
Bridge unit, frame transfer method of the bridge unit and computer program for frame transfer
A location information management table 14 stores information on the location of the host both at present and prior to the movement. The host is movable based on the transmission address contained...
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5959986 |
Lightwave transmission telecommunications system employing a stacked matrix architecture
A lightwave telecommunications matrix configuration for use in a fiber-optic telecommunications network includes a first set of interface circuits for interfacing with a first external fiber-optic...
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5959969 |
Method for initiating a distributed restoration process
A method and system for initiating distributed restoration of a communications network following the failure of one or more network components. Restoration is conducted in a distributed fashion by...
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