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6711409 |
Node belonging to multiple clusters in an ad hoc wireless network
A communication system has stations arranged in clusters of member stations, each of which communicates with the other member stations. One member station is a head station of the cluster that...
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6707795 |
Alarm correlation method and system
An alarm correlation method for use in a network management device is provided in which alarm correlation is performed between identified root-cause alarms and alarms which have been raised on...
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6704289 |
Method for monitoring service availability and maintaining customer bandwidth in a connectionless (IP) data network
Unavailable customer bandwidth in a connectionless IP network ( 100 ) is determined by first measuring network accessibility and network continuity (in Defects Per Million) via an accessibility...
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6704287 |
Enabling smart logging for webtone networks and services
Methods and apparatus for providing enhanced telecommunications services troubleshooting in multi-carrier telecommunications networks are described. Troubleshooting information gathering is...
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6700873 |
Apparatus for and method of detecting operation administration and maintenance (OAM) cell
In an OAM detecting apparatus and an OAM detecting method, normal lines are not adversary influenced at occurrence of failure and one failed position can be recognized at occurrence of a double...
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6694455 |
Communications network and method performing distributed processing of fault and alarm objects
A distributed method and system of controlling a communications network having spans of interconnected network elements that distribute network topology information to respective span databases;...
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6693876 |
Selecting IPX/IGX nodes in a multi-domain environment
A method is disclosed for connecting a customer representative to a customer switch within a telecommunications network having a plurality of switch domains, each switch domain including a...
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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...
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6687499 |
Method and system for testing the functioning of data communication in a radio apparatus
To test the functioning of downlink data communication a mobile station comprises means ( 301, 302, 303, 304, 326 ) for receiving a signal in the downlink direction and means ( 331, 310, 311, 312,...
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6687749 |
Methods and systems for reporting and resolving support incidents
The present invention manages information about support incidents on a computer. The invention gathers information about a support incident, associates the support incident with a support channel,...
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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,...
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6674719 |
Quotient algorithm in monitoring disturbance processes
The Quotient algorithm is used for controlling the monitoring of disturbances in a physical process and disturbance-counting values acquired in the monitoring are utilized to determine a...
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6674714 |
Retainment of alarm events during wait restore (WTR) cycle of channel restoration and squelch table with reduced memory area
A transmission device which cross connects channels on a synchronous multiplex transmission network which forms a ring, and which performs restoration of communication by looping back signals in a...
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6671723 |
Method and apparatus for scanning a web site in a distributed data processing system for problem determination
A method and apparatus for identifying problems associated with a web site. A scan of a web site is initiated by a plurality of agents, wherein each of the plurality of agents are at a different...
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6665262 |
Distributed fault management architecture
A system and method for distributing the fault management functions throughout a communications network. Each node in the network includes an associated fault agent/configuration agent pair. The...
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6665268 |
Load testing apparatus, computer readable recording medium for recording load test program, fault diagnosis apparatus, and computer readable recording medium for recording fault diagnosis program
In a load testing apparatus, before the load test, three processor elements are combined, without overage or shortage, with a source processor element and a destination processor element as one...
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6657967 |
Dummy bit elimination device and coding apparatus for FEC code word
A dummy bit elimination device in a coding apparatus for use in a submarine cable system. The dummy bit elimination device has a converter for eliminating only dummy bits from FEC (Forward Error...
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6657968 |
Glitcher system and method for interfaced or linked architectures
A serial differential link glitcher system and method which allow for verification of error recovery by an interfaced or linked architecture system. The system and method provide accurate,...
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6654891 |
Trusted network binding using LDAP (lightweight directory access protocol)
A method and apparatus for providing information between a central database and at least one server. A server manager is coupled between the central database and the at least one server. The server...
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6651112 |
Data transmission between connected modules wherein each module separately and directly communication with each other modules
A modular electronic device has a cabinet frame, a plurality of push-in modules with module frames retained in the cabinet frame side-by-side, and printed circuit boards mounted in the module...
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6643296 |
System for controlling frame collision
A system for controlling frame collision, enabling retry of transmission earlier and transmission of a data frame from the base station earlier, in a wireless LAN constituted by a base station...
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6643265 |
Apparatus for and method of releasing stuck virtual circuits in an asynchronous transfer mode network
An apparatus for and a method of locating and releasing stuck virtual circuits in an ATM network device. Memory resources are freed that would otherwise be lost due to the last cell of a frame not...
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6633536 |
Signalling in a digital mobile communications system
A method and a transmitter ( 100 ) and a receiver ( 102 ) for transmitting messages ( 114 ) in a digital telecommunications system. The information ( 104 ) to be sent is encoded in an information...
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6633537 |
HITLESS PATH SWITCHING RING NETWORK, HITLESS PATH SWITCHING TRANSMISSION SYSTEM, NODE DEVICE FOR A HITLESS PATH SWITCHING RING NETWORK, AND FAILURE OCCURRENCE-TIME HITLESS PATH SWITCHING TRANSMISSION METHOD IN A RING NETWORK
A hitless path switching ring network capable of switching from a work transmission line to a protection transmission line without instantaneous hitting of a signal when a failure occurs in the...
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6625152 |
Methods and apparatus for transferring data using a filter index
A server installation, which includes multiple servers, services a client request using a filter index that is different than a destination address associated with the client request. This enables...
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6625114 |
System and method for connecting equipment that supports only permanent virtual circuits to a switched virtual circuit network
A virtual circuit (PVC) to switched virtual circuit (SVC) conversion system and method are used for communication across SVC in parallel with VCs or in place of VCs set up to other sites on a...
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6621851 |
Priority messaging method for a discrete multitone spread spectrum communications system
A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked,...
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6618358 |
Method and apparatus for switching a clock source from among multiple T1/E1 lines with user defined priority
A clock selection controller is shown which allows a user to assign a priority scheme to recovered clock signals obtained from communication facilities. The clock selection controller also receives...
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6618359 |
Error recovery in a mixed protocol networks
A method, translating apparatus, apparatus comprising a computer readable medium, and system for error recovery in a mixed protocol communication network includes a translation function that...
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6608843 |
Pilot signal transmission technique and digital communication system using same
In a digital communication system such as a mobile radio system, fading distortion is compensated with a raised precision. In a transmitter, pilot signals are regularly inserted in the information...
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6594236 |
Alarm suppressing method for optical transmission apparatus
An alarm suppressing method for an optical transmission apparatus includes the steps of checking whether a detected alarm is a root alarm, suppressing a first propagation alarm generated by the...
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6590861 |
Combining virtual local area networks and load balancing with fault tolerance in a high performance protocol
A method to send and receive data packets over a network of computer systems (e.g., a plurality of virtual local area networks [VLANs] compliant with the IEEE 802.1Q standard) using a server...
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6590868 |
Method and apparatus for restart communication between network elements
A method and apparatus for the restart communication between network elements are described. In one embodiment, a method for restarting communication between a first network element and a second...
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6587686 |
Method and apparatus for detecting base station transceivers malfunctions
The present invention is directed to method and apparatus for detecting base station (BS) transceivers malfunctions in a cellular telecommunications system. A Transceiver Malfunction Detector (TMD)...
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6580693 |
Methods and apparatus for detecting leaks in ATM networks
A method for detecting leaks in an ATM network, the method including the steps of a) creating an entity interconnection map including mappings of port interconnections among a plurality of network...
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6574197 |
Network monitoring device
A network monitoring device disposed at a node connected to a network includes a determination unit for sending a monitoring packet to a neighboring node upstream or downstream, and for determining...
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6571358 |
Integrated multiple services switch testing system
A system for integrated testing of one or more multi-service communications switches including a script execution environment for executing a test script. The script execution environment includes...
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6570976 |
Multimedia private branch exchanger and private branch exchange system
The router unit is built in the main key telephone apparatus, the office line interface function and the independent power supplying function are deleted in the router unit, and the office line...
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6567381 |
Method and apparatus for automatic call test in a CDMA system
A method automatically measures parameter data relating to wireless network environment in a code division multiple access(CDMA) system. First, if a server's telephone number is detected from...
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6560201 |
Method of re-synchronizing a group of B channels in an ISDN network
Method and apparatus are provided for re-synchronizing a group of B channels in an ISDN network using the BONDING Mode 1 specification. Re-synchronization is achieved without the need to first...
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6549598 |
Clock signal extraction circuit
A clock signal extraction circuit extracts clock information from the received data and reproducing the clock signal. The clock signal extraction circuit includes an input terminal for receiving...
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6549520 |
Method and apparatus for varying power levels in a multicarrier modem
A modem for use in Digital Subscriber Line communications transmits and receives data over the local subscriber loop in common with voice information over the loop, while avoiding the need for...
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6545976 |
Measurement of network protection switch time
This invention precisely and automatically measures the protection switch time of modern communication networks such as the SONET or SDH standard. An automated precision measurement device is...
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6545981 |
System and method for implementing error detection and recovery in a system area network
A system and method for facilitating both in-order and out-of-order packet reception in a SAN includes requestor and responder nodes, coupled by a plurality of paths, that maintain the good and bad...
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6545980 |
Synchronous transmission system with fault location function and monitoring device therefor
A synchronous transmission system is disclosed in which the transmission paths (leased lines) extend over several individual transmission systems (Sx). Monitoring devices (NIM) with access to at...
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6542470 |
Packet expansion with preservation of original cyclic redundancy code check indication
A system for appending data to a packet whereby the original CRC calculated by the transmitting station is not modified and is retained in order to determine the occurrence of transmission errors...
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6532215 |
Device and method for network communications and diagnostics
A device and method for network communications and diagnostics are provided. One embodiment of the device includes a processor for generating a time-domain reflectometry testing stimulus signal...
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6512774 |
Fail over with multiple network interface cards
A method and system for detecting a non-functioning network interface card (NIC) in a server computer system adapted to have a plurality of network interface cards coupled thereto and...
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6511280 |
Adaptive Reed-Solomon decoder and methods thereof
An adaptive Reed-Solomon(RS) decoder ( 207 ) and analogous methods arranged and constructed to decode a RS(n,k) encoded symbol stream, including; a code register ( 211 ), coupled to the symbol...
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6510140 |
ATM line evaluation apparatus capable of synthetic evaluation
In order to easily understand a synthetic quality degree, a ratio of each of parameters in the entirety, etc. in an ATM line to be evaluated, cell data is received from the ATM line and abnormal...
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