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2017

19591658Radio apparatus
29571335Computer network method and device using link aggregation
39566966Method for carrying out a safety function of a vehicle and system for carrying out the method
49565054Fate sharing segment protection
59565013Controlling the state of duplexing of coupling facility structures
69564994Fault tolerant chip-to-chip communication with advanced voltage
79559989Link problem handling
89559943Network communication redundancy method
99553760Method, device, and system for dual-uplink tangent ring convergence

2016

109532268Methods and apparatus for synchronizing a user equipment with an HFN offset
119515845Utility communication method and system
129509456Power supply line data transmission
139503377System and method for a TCP mapper
149503179Apparatus and method for protection in a data center
159479355VPLS N-PE redundancy with STP isolation
169467363Network system and method of managing topology
179450856Expanding member ports of a link aggregation group between clusters
189432251Enhanced acknowledgement and retransmission mechanism
199432250Redundant network implementation method
209413494FEC-based reliable transport control protocols for multipath streaming
219401786Wireless station, data transmission method, and wireless communication system
229398495Completely redundant connection and handover in cellular industrial radio networks
239391854Method and router for packet processing during server failure
249389955String dataflow error detection
259379883Digital to analog converter cell for signed operation
269374315Spare resource election in a computing system
279357481Control method for adaptive modulation circuit and wireless transmission device provided with adaptive modulation circuit
289356742Method and system for transmitting data in a motor vehicle
299356731Method and apparatus for low complexity compression of signals employing differential operation for transient segment detection
309351106System for providing information and associated devices
319337892Method and system for switching main board and standby board
329300335Device and method for communication correction
339270506Methods for bypassing faulty connections
349258736Broadcasting of data files and file repair procedure with regards to the broadcasted data files
359253052Integration network device and service integration method thereof
369253046Controlling the state of duplexing of coupling facility structures
379252926System and method for retransmissions in a wireless communications system
389252922System and method for improved error response in data mirroring
399246748Optical channel data unit switch with distributed control
409240935Communication system

2015

419219511High-integrity data transmission system
429209928Transmission device and transmission method
439185142System and method for providing alternate routing in a network
449184884System and method for cloud-based live media ingestion and transcoding
459178757Serial link fault detection system and method
469172507Signal protection
479148901Receiving apparatus, transmitting apparatus and line connection switching method
489141465Reception circuit, information processing apparatus, and control method
499137151Redundant architecture for failover of transcoder instances
509136980Method and apparatus for low complexity compression of signals
519130661Method and master clock for generating fail-silent synchronization messages
529112878System and method for hand-off maintenance
539112697Systems and methods of transmitter protection for wireless communications
549104741Method and apparatus for seamless management for disaster recovery
559098468Method for switching node main-standby controllers based on content delivery network (CDN) and CDN thereof
569088413Rate matching for a wireless communications system
579078018Audio/video and data signal redistribution system
589071549Communication device using plurality of communication paths
599060298Distributed protection switching architecture for point-to-point microwave radio systems
609059900Methods and systems for automatically rerouting logical circuit data
619030929Redundant control device and network system

2014

628879464System and method for providing a replacement packet
638873377Method and apparatus for hitless failover in networking systems using single database
648811155System and method for compensating for a satellite gateway failure
658811151Preserving stable calls during failover
668798079Method and apparatus for fast passing through services for synchronous digital hierarchy device
678780928Method and system for determination of routes in LEO satellite networks with bandwidth and priority awareness and adaptive rerouting
688773978System and method for protecting ingress and egress of a point-to-multipoint label switched path
698693314Systems and methods for protecting bonding groups
708660269Method and system for securing data utilizing redundant secure key storage

2013

718477619Method and system for distributed virtual traffic management
728438445Methods and systems for error detection of data transmission
738411690Preventing data traffic connectivity between endpoints of a network segment
748400910Associated tunnels terminating on different packet switches and relaying packets via different tunnel combinations

2012

758295161Network apparatus that determines whether data is written into buffer based on detection of a memory error
768261145Apparatus and method for transmitting/receiving signal in communication system
778228787Method, apparatus, and system for disaster recovery of IMS
788174964Detecting unavailable network connections

2011

797924706Method and apparatus for controlling the operation of a flexible cross-connect system
807903546Detecting unavailable network connections

2010

817680034Redundant control systems and methods
827643408Restoration time in networks

2009

837577090Method and system for providing availability and reliability for a telecommunication network entity
847552354Method of protecting a microcomputer system against manipulation of data stored in a memory arrangement
857523178Tolerating failure of traffic management systems
867518998IP packet communication apparatus
877489643Increased availability on routers through detection of data path failures and subsequent recovery

2008

887403893Method and apparatus for reconstructing voice information
897395463Electronic apparatus and wireless network system
907394759Method of negotiating an active or a passive role assignment to a control means of a network element, a control means, a program module and a network element therefor
917389420Content authentication and recovery using digital watermarks
927388874Protection switching methods and systems for electronic devices
937370239Input/output device with configuration, fault isolation and redundant fault assist functionality
947353306Storage controller redundancy using bi-directional reflective memory channel

2007

957263455Apparatus and methods for ferroelectric ram fatigue testing
967233567Apparatus and method for supporting multiple traffic redundancy mechanisms
977191326Method and apparatus for making and using test verbs

2006

987126907Label switched communication network, a method of conditioning the network and a method of data transmission
997099271System for providing fabric activity switch control in a communications system
1007065039Fiber optic control network and related method
1017046622Multi-tier, hierarchical fiber optic control network
1027046621Redundant multi-fiber optical ring network
1037042839Scaleable line-based protection for connection oriented communications protocols
1047042206Integrated circuit and method for operating the integrated circuit
1057020076Fault-tolerant communication channel structures
1067013267Method and apparatus for reconstructing voice information
1077002905Method and apparatus for performing the rebooting of a network node with minimal loss of network traffic

2005

1086968477System and method for system surveillance using firmware progress code
1096965845Method and apparatus for system management using codebook correlation with symptom exclusion
1106965558Method and system for protecting a network interface
1116963995Network restoration using refreshed switch state tables
1126963994Managing connections to coupling facility structures
1136963942High availability system and method for improved intialization
1146961876Automatic handling of link failures
1156957368Hazard mitigation in medical device
1166957361Method, system, and program for error handling in a dual adaptor system
1176956820Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using network-aware media gateway
1186952795Method and apparatus for verifying the integrity of control module operation
1196952793Computer system and methods for acquiring dump information and system recovery
1206952792Failover system for storage area network
1216950969Cascadable dual fan controller
1226950966Data transmission from raid services
1236950024System for recovering lost jewelry and diamonds
1246948093Data processing arrangement and method
1256948091High integrity recovery from multi-bit data failures
1266946846Circuit for measuring on-chip power supply integrity
1276944789Method and apparatus for data backup and recovery
1286944788System and method for enabling failover for an application server cluster
1296944787System-managed duplexing of coupling facility structures
1306941490Dual channel restoration of data between primary and backup servers
1316941486Method and device for optimizing the transmission safety and the defect tolerance in high-bit-rate data networks
1326941396Storage controller redundancy using bi-directional reflective memory channel
1336938183Fault tolerant processing architecture
1346934904Data integrity error handling in a redundant storage array
1356934888Method and apparatus for enhancing input/output error analysis in hardware sub-systems
1366934879Method and apparatus for backing up and restoring data from nonvolatile memory
1376934873Automatic BIOS recovery in a multi-node computer system
1386934247Recovery following process or system failure
1396934204Semiconductor device with reduced terminal input capacitance
1406933729Method and apparatus for measuring on-chip power supply integrity
1416931575Method and system for testing hardware and software configurations in a computer system
1426931568Fail-over control in a computer system having redundant service processors
1436931564Failure isolation in a distributed processing system employing relative location information
1446928576Backup gateway apparatus and home network system
1456928376Apparatus and methods for ferroelectric ram fatigue testing
1466925582Forwarding of diagnostic messages in a group
1476925578Fault-tolerant switch architecture
1486922792Fault tolerance for computer programs that operate over a communication network
1496922761Method and system for migrating data
1506920603Path error monitoring method and apparatus thereof
1516920584System design verification using selected states of a processor-based system to reveal deficiencies
1526918124Query trees including or nodes for event filtering
1536918063System and method for fault tolerance in multi-node system
1546918056Internet-based service system and method for remotely restoring damaged data and files
1556918052Managing operations of a computer system having a plurality of partitions
1566917583Information transmission network system and its traffic control method and node equipment
1576915448Storage disk failover and replacement system
1586912674System and method for diagnosing printer problems and notarizing prints by evaluating embedded data
1596912668Methods and systems for implementing shared disk array management functions
1606910160System, method, and computer program product for preserving trace data after partition crash in logically partitioned systems
1616910149Multi-device link aggregation
1626909922Apparatus, method and computer system for reducing power consumption of a processor or processors upon occurrence of a failure condition affecting the processor or processors
1636907443Magnitude comparator
1646907303Switching circuit for board duplication apparatus
1656904547Method and apparatus for facilitating validation of data retrieved from disk
1666904542System for group-based distributed protection switching
1676901531Automatic system control failover
1686898737Automatic classification of event data
1696898736Dynamic sizing logic for dump list generation
1706898688Data management appliance
1716895530Method and apparatus for controlling a data processing system during debug
1726895528Method and apparatus for imparting fault tolerance in a switch or the like
1736894971Redundant structure control device for exchange
1746892331Method and system for error detection in a managed application environment
1756892329Selective protection for ring topologies
1766892311SYSTEM AND METHOD FOR SHUTTING DOWN A HOST AND STORAGE ENCLOSURE IF THE STATUS OF THE STORAGE ENCLOSURE IS IN A FIRST CONDITION AND IS DETERMINED THAT THE STORAGE ENCLOSURE INCLUDES A CRITICAL STORAGE VOLUME
1776892157On-die automatic selection of manipulated clock pulse
1786889338Electing a master server using election periodic timer in fault-tolerant distributed dynamic network systems
1796886107Method and system for selecting a master controller in a redundant control plane having plural controllers
1806883116Method and apparatus for verifying hardware implementation of a processor architecture in a logically partitioned data processing system
1816883114Block device driver enabling a ruggedized file system
1826880051Method, system, and program for maintaining backup copies of files in a backup storage device
1836877111Method and apparatus for managing replicated and migration capable session state for a Java platform
1846877109Method for the acceleration and simplification of file system logging techniques using storage device snapshots
1856874103Adapter-based recovery server option
1866871285Method, system and program for detecting communication code information
1876868509Method and apparatus for network fault correction via adaptive fault router
1886862691Redundant component system and method for facilitating endsystem functionality
1896859904Apparatus and method to facilitate self-correcting memory
1906859866Synchronizing processing of commands invoked against duplexed coupling facility structures
1916857086Hierarchy of fault isolation timers
1926856594ATM switching system and method for switchover between working channel and protection channel in an ATM network
1936856592Method of providing restoration routes in a mesh network
1946851075Race detection for parallel software
1956850704Low-overhead fault-tolerance techniques for optical and other cross-connect systems
1966850487Method and apparatus for guaranteeing a failure-recovery time in a wavelength-division multiplexing network
1976848063System and method for scrubbing errors in very large memories
1986845466Managing disk drive replacements on mulitidisk headless appliances
1996845465Method and system for leveraging spares in a data storage system including a plurality of disk drives
2006839834Microprocessor protected against parasitic interrupt signals

2004

2016829729Method and system for fault isolation methodology for I/O unrecoverable, uncorrectable error
2026826655Apparatus for imprecisely tracking cache line inclusivity of a higher level cache
2036823470Method and apparatus for correcting data
2046820211System and method for servicing requests to a storage array
2056820180Apparatus and method of cascading backup logical volume mirrors
2066820044Method and apparatus for a common-cause failure module for probabilistic risk assessment tools
2076813726Restarting a coupling facility command using a token from another coupling facility command
2086810011Protection switching within an OP-n layer
2096807149Method and system for LEC resiliency with fast failover
2106804801Integrated circuit fault insertion system
2116799288Detecting and mitigating memory device latchup in a data processor
2126795941Method for diagnosing a network
2136795933Network interface with fail-over mechanism
2146792558Backup system for operation system in communications system
2156789217System and method for allocating logic analyzer hardware resources
2166782518System and method for facilitating coverage feedback testcase generation reproducibility
2176782495Method for analyzing printer faults
2186775794Use of activity bins to increase the performance of disk arrays
2196772363Fast failover database tier in a multi-tier transaction processing system
2206772135Systems and methods for monitoring an application processor
2216771261Error metric for mesh simplification processing
2226766472Systems and methods for replicating virtual memory on a host computer and debugging using the replicated memory
2236766317Range check cell and a method for the use thereof
2246765863Network system
2256763482Printer diagnostics method
2266763441System and method for using ancillary processors and storage to speed time critical data capture
2276763074Adaptive configurable demodulation system with multiple operating modes
2286762993DCME system with circuit switching capability
2296760869Reporting hard disk drive failure
2306760302Automatic protection switching system in a network
2316757849System and method for developing customized integration tests and network peripheral device evaluations
2326754173Trunk arrangement in a computer network with intra trunk switch connections
2336748551Communication control system
2346742136Redundant devices in a process control system
2356738937Method for nondisruptive testing of device and host attachment to storage subsystems
2366738933Root cause analysis of server system performance degradations
2376738345Method for failover management in a synchronous optical network using standard protocols
2386735718Protection switch to support redundant application of converter units
2396735634Method for real time protocol media recording
2406735171SDH transmission system, SDH transmission equipment and line switching control method in SDH transmission system
2416728907System and method for self-diagnosing system crashes
2426728717Storage system with online manual
2436724762System and method for implementing multi-pathing data transfers in a system area network
2446718481Multiple hierarichal/peer domain file server with domain based, cross domain cooperative fault handling mechanisms
2456715099High-availability architecture using high-speed pipes
2466711713Method and apparatus for detection, transmission and processing of safety-related signals
2476708285Redundant controller data storage system having system and method for handling controller resets
2486691181Programmatic time-gap defect detection apparatus and method
2496690643Method of rerouting connection in multipoint connection
2506687218Configurable communication output redundancy
2516684343Managing operations of a computer system having a plurality of partitions
2526680905Transfer path control system
2536675323Incremental fault dictionary

2003

2546671822Method and system for absorbing defects in high performance microprocessor with a large n-way set associative cache
2556668336Ruggedized block device driver
2566665778System and method for storage of device performance data
2576651183Technique for referencing failure information representative of multiple related failures in a distributed computing environment
2586650749Method and system for protecting equipment and switching functionality in a telecommunication system
2596650449Method and device for network protection
2606650268Method and apparatus for a pulse decoding communication system using multiple receivers
2616647516Fault tolerant data storage systems and methods of operating a fault tolerant data storage system
2626647515Determination of the degree of common usage for elements of a data processing system
2636642733Apparatus for indentifying defects in electronic assemblies
2646639894Communications interconnect with make-before-break signal routing
2656639893Communication network system including ring network that performs communication through multiple switching devices
2666636982Apparatus and method for detecting the reset of a node in a cluster computer system
2676636478Configurable scalable communications equipment protection method system
2686625117Method and apparatus for switching messages from a primary message channel to a secondary message channel in a message queuing system
2696625115Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
2706618825Hierarchy of fault isolation timers
2716615374First and next error identification for integrated circuit devices
2726615373Method, system and program products for resolving potential deadlocks
2736611942Transmitter, receiver, method and system for safe telecommunication of cells
2746611923System and method for backing up data stored in multiple mirrors on a mass storage subsystem under control of a backup server
2756608812Trunk arrangement in a computer network with intra trunk switch connections
2766603409Decoding apparatus and decoding method of repeated data for rate matching
2776601206Error concealment or correction of speech, image and video signals
2786597657Unit and method for duplex call control for SVC connection
2796587974Method for fault detection and fast protection switching in transmission systems
2806587957Disk drive controller for controlling data flow therethrough by switching to secondary bus to receive clock pulses when a failure on master bus is detected
2816574749Reliable distributed shared memory
2826574745Loosely coupled mass storage computer cluster
2836574744Method of determining a uniform global view of the system status of a distributed computer network
2846570378Amplitude decay of magnetic storage medium
2856567926Loosely coupled mass storage computer cluster
2866557114Loosely coupled mass storage computer cluster
2876552998Two-way communication system, and delay and transmission level methods
2886546503Synchronous semiconductor memory device capable of reducing test cost and method of testing the same
2896545981System and method for implementing error detection and recovery in a system area network
2906545976Measurement of network protection switch time
2916543007Process and system for configuring repair codes for diagnostics of machine malfunctions
2926539492System and method for maintaining synchronization in a computer storage system
2936523134Selective undo
2946516441Device and method for transmitting subframe in mobile communication system
2956516436Error control coding for transmission equipment protection
29665130921:N protection switching architecture for common processing units
2976510134Non-break change-over device for redundancy system in information transmission systems
2986507243Controller-based radio frequency amplifier module and method

2002

2996502203Method and apparatus for cluster system operation
3006499115Burn rack dynamic virtual local area network
3016498578Method and apparatus for generating pulses using dynamic transfer function characteristics
3026496475System and method for selective recovery of a failed overhead channel in a wireless network
3036493343System and method for implementing multi-pathing data transfers in a system area network
3046487591Method for switching between active and standby units using IP swapping in a telecommunication network
3056470397Systems and methods for network and I/O device drivers
3066467055Test system for use with a communications network, and apparatus and method for testing digital data transfer within a communications network
3076460147System and method for automated testing of software systems utilizing statistical models
3086457144System and method for collecting trace data in main storage
3096457050System and method for dynamically restoring communications within a network
3106456221Method and apparatus for signal detection in ultra wide-band communications
3116452530Method and apparatus for a pulse decoding communication system using multiple receivers
3126449730Loosely coupled mass storage computer cluster
3136449249Spare circuit switching
3146438626System implementing a state transition having an interface storing a new next state of a self block and exchanging the state information with other block
3156438126Arrangement and method relating to communications systems
3166424628Analyzing signals
3176420935Controller-based radio frequency amplifier module and method
3186418540State transfer with throw-away thread
3196414937Self-healing method of ABR and ATM cell switch device therefor
3206411599Fault tolerant switching architecture
3216400718Cell switching device capable of effecting hit-less switching between an active system and a standby system
3226400694Duplex communication path switching system
3236389553Redundant link delay maintenance circuit and method
3246377645Method and apparatus for controlling bit slippage in high-speed communications systems
3256370658Device for testing digital signal processor in digital video disc reproducing apparatus
3266370232Procedure and system for ensuring emergency communication
3276360331Method and system for transparently failing over application configuration information in a server cluster
3286360330System and method for backing up data stored in multiple mirrors on a mass storage subsystem under control of a backup server
3296341356System for I/O path load balancing and failure which can be ported to a plurality of operating environments

2001

3306323974Optical protection system for liquid crystal switches
3316320843Wireless communications systems with standard and robust services and methods of operation thereof
3326301352Method and system for providing an alternative common channel signaling path
3336298046Adjustable balancing circuit for an adaptive hybrid and method of adjusting the same
3346295146System and method for sharing a spare channel among two or more optical ring networks
3356289022Methods and systems for fault-tolerant data transmission
3366275526Serial data communication between integrated circuits
3376275510Telecommunications multiplexer
3386275468Automatic timing adjustment for diverse routing of HFC systems
3396266168Optical protection switch employing an interference filter
3406263371Method and apparatus for seaming of streaming content
3416256360Method for reducing transients in a clock signal generating system
3426252846Automatic switching system
3436240533Method and apparatus for providing uninterrupted communication over a network link
3446240139Apparatus and method for repeating simultaneously transmitted signals on a single transmission path
3456230284Initiating corrective action after the occurrence of a program error
3466229787Mechanism to achieve very fast failover in ATM backbone networks using multi-homed circuits
3476226762System and method for providing delayed start-up of an activity monitor in a distributed I/O system
3486219336Terminal multiplexer and method of constructing the terminal multiplexer
3496216189Error master detector
3506194939Time-walking prevention in a digital switching implementation for clock selection
3516192437Transmission apparatus with control circuit/relay within each card providing connection to related card output depending on related slot ID/ redundancy/non-redundancy, working/protection signals
3526173230Data link system between an aircraft and the ground and procedure for recovering from a failure

2000

3536167099Multi-channel digital transceiver and method
3546163834Two level address translation and memory registration system and method
3556163526Transmission system for switching connection from a working channel line to a protection channel line while avoiding instantaneous cutoff upon failure
3566151686Managing an information retrieval problem
3576148414Methods and systems for implementing shared disk array management functions
3586144633Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
3596128347Signal transmission circuit with protection line driven with signal having same phase as transmission signal
3606128277Reliable array of distributed computing nodes
3616122753Fault recovery system and transmission path autonomic switching system
3626108796Fault tolerant multi-drop communications system
3636108301Circuit, architecture and method for redundant data communications links
3646101167Path switching system
3656088141Self-healing network
3666084952System and method for communicating electronic messages over a telephone network using acoustical coupling
3676078222Controller-based radio frequency amplifier module and method
3686049525Terminal multiplexer and method of constructing the terminal multiplexer
3696049523System and method for achieving efficient coordination of protection switching
3706038210Device for switching over double module
3716023779Electronic, acoustical tone generating communications system and method
3726023452Network failure restoration method with different recovery performances for different signal groups
3736021111Unit switching apparatus with failure detection

1999

3746006351Electronic communications system and method
3756005841Redundancy arrangement for telecommunications system
3765995807Method of switching a channel from a first propagation path to a second propagation path
3775991312Telecommunications multiplexer
3785987098Method and system for sparing echo cancellers
3795978354Optical transmission system and transmission line switching control method
3805959970Circuit pack sparing arrangement
3815956384Apparatus and method for automatically detecting defective lines in a cable and for automatically switching from the defective line to an extra line
3825936938System and method for providing switching between paths in a telecommunications system
3835933424Transmitter capable of preventing interruption on occurrence of a fault
3845926547Method and apparatus for providing program/component redundancy in headend
3855926102Method for controlling bidirectional line protection switching by using a remote defect indication signal
3865912927Multi-channel transmitter having an adaptive antenna array
3875903620System switching circuit based on phase matching
3885896370Signal protection and monitoring system
3895886427Low signal loss type hot stand-by switching unit
3905878025ATM switch and method for switching path by ATM switch
3915872827Method for producing a result and device for the implementation thereof
3925872823Reliable switching between data sources in a synchronous communication system
3935870382Automatic protection switching system for ATM exchange network
3945862311Inter-equipment data link system

1998

3955838698Alignment of parity bits to eliminate errors in switching from an active to a standby processing circuit
3965835483Information transmission system utilizing at least two channels in the redundancy mode
3975831970Transmission apparatus
3985818883Multi-channel digital transceiver and method
3995793983Input/output channel interface which automatically deallocates failed subchannel and re-segments data block for transmitting over a reassigned subchannel
4005793746Fault-tolerant multichannel multiplexer ring configuration
4015787070One for N redundancy in a communication system
4025781530Redundant local area network
4035771225System for adjusting characteristic of protection unit when switching from plural working units having various characteristics to protection unit
4045764651Bit error rate detection system
4055757416System and method for transmitting a plurality of digital services including imaging services
4065754597Method and apparatus for routing a digitized RF signal to a plurality of paths
4075754527Line switching apparatus
4085748683Multi-channel transceiver having an adaptive antenna array and method
4095737311Failure detection method in a communication channel with several routes
4105736933Method and apparatus for providing redundancy in a communication network
4115724363Optical analog signal transmission system
4125712847Line switching system for duplexed fiber interface shelf between different modes
4135706277Method for changing-over to standby for a transmission device for the bidirectional transmission of digital signals and arrangement for carrying out the method

1997

4145701410Method and system for detecting fault conditions on multiplexed networks
4155696513Signal transmitting apparatus
4165691998Data transmission protection circuit with error correction
4175680389Data transmission system
4185671215Method and circuit arrangement for transmitting message cells via redundant, virtual path pairs of an ATM communication network
4195668836Split frequency band signal digitizer and method
4205663949Line protection switching system in duplexed fiber interface shelf
4215661719Method for activating a backup network management station in a network management system
4225659546Wideband frequency signal digitizer and method
4235655068Point-to-multipoint performance monitoring and failure isolation system
4245636205Bidirectional line switched ring network control system
4255631933Phase-locked digital synthesizers
4265631927Shifting circuit for a transmission system with multiple links
4275631923Two-wire full-duplex modem
4285631896Hitless path switching apparatus and method
4295627837Apparatus and method for suppressing protection switching in a digital communication system in the event of an error burst
4305627822Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route
4315612651Modulating array QAM transmitter
4325602874Method and apparatus for reducing quantization noise

1996

4335583562System and method for transmitting a plurality of digital services including imaging services
4345581688Tele- and data communication system
4355579341Multi-channel digital transceiver and method
4365574718Signal protection and monitoring system
4375570345Protection switching system with single line control
4385570344Synchronous digital hierarchy transmission device and method for exchanging synchronous digital hierarchy transmission device units
4395561661Method for synchronizing redundantly transmitted message cell streams
4405557636Method and system of operating redundant transmission line
4415550805Failure restoration method in a mesh network
4425548710Method and apparatus for an ISDN communication system using active and stand-by ISDN communication adaptors to maintain operation when trouble occurs
4435544197Cutover apparatus and methods for switching a signal between two transmission media
4445535191Method and apparatus for switching between redundant hardware in a wireless data communication system
4455528599Method and apparatus of combining signals in a digital pipelined signal adder
4465526362Control of receiver station timing for time-stamped data
4475519830Point-to-multipoint performance monitoring and failure isolation system
4485519385Circuit for switching signal processing circuits
4495517489Synchronous digital hierarchy 2-fiber ring having a selective protection function
4505515380Reducing errors in digital communication
4515513378Maintaining communications after control breaks in a trunked communication system
4525506833PCA transmission apparatus and PCA transmission method
4535504779Redundancy modem
4545502499Synchronizing waveform generator
4555491696Synchronous/asynchronous system having function of switching path upon fault
4565483519Method and apparatus for line switching

1995

4575479396Redundant system having signal path operation function
4585471332Hitless switching apparatus and method for optical network
4595469427Transmission line control system and interface unit therefor
4605457678Method and circuit arrangement for the transmission of message packets according to the asynchronous transfer mode in a communication network
4615457555Optical transmission system
4625455921Redundant MIL-STD-1153B modem
4635453737Control and communications apparatus
4645452286Digital transmission apparatus for subscribers having switching function from active transmission line to protection transmission line
4655448573Automatic circuit switching device restorable without a hit and its method
4665446725Method of changing over path switch in optical transmission device
4675440538Communication system with redundant links and data bit time multiplexing
4685436915Bit error reduction by using checksums in a switching network implemented as triplets
4695435000Central processing unit using dual basic processing units and combined result bus
4705425019Call accommodation system containing emergent calls and normal calls
4715408462Protection switching apparatus and method
4725398236Asynchronous transfer mode link recovery mechanism
4735396503Method and system for communicating data
4745390163Data exchange capable of minimizing loss of a data block
4755386424Apparatus and method for transmitting information between dual redundant components utilizing four signal paths
4765379278Method of automatic communications recovery

1994

4775367562Method and device for returning to a normal communication link after using a standby link
4785365510Communications system with a single protection loop
4795347539High speed two wire modem
4805345438Transmission device capable of readily controlling active and backup sections
4815343464Switching system between working transmission lines and protection transmission line
4825329521Method and apparatus for redundant local area network systems
4835313456Data link protecting system
4845311551Digital signal hardware protection switching

1993

4855271001Synchronous terminal station system
4865237318Dynamic switching arrangement for error masking in a system for doubling the digital channel
4875235599Self-healing network with distributed failure restoration capabilities
4885214637High speed two wire modem
4895200949Link changeover control system for local area network of broadcasting arrangement
4905187704Monitoring method for stand-by circuits suitable for a multiplexing/demultiplexing apparatus

1992

4915161186System for secure and private communication in a triple-connected network
4925155483Channel switching system
4935153874Redundancy data transmission device
4945081619Digital signal multiplex communication system having signal path monitoring function

1991

4955065399Telecommunication network trouble recovery system
4965034966Redundant and fault tolerant communication link
4975026702Morpholines and morpholine-N-oxides and pharmaceutical compositions containing these compounds
4985021683Circuit arrangement comprising two parallel branches for transmitting a binary signal
4995003531Survivable network using reverse protection ring
5004985904High speed switching system in a radio-communication system including a plurality of main communication systems and a plurality of stand-by communication systems
5014984252Channel switching system

1990

5024967406Subsignal transmitting system
5034961190(1+N) Hitless channel switching system
5044947451Multiple accessing satellite communication system having standby central station
5054947394Spare channel monitor circuit
5064939736Protection against loss or corruption of data upon switchover of a replicated system
5074894827Redundancy and buffering circuits

1989

5084882738Clock control system
5094882730TDMA communication system having common time slots for system maintenance
5104878228Microwave relay station having a common standby channel for signals of different types of modulation
5114864568Communication control system
5124862457Radio transmission system having simplified error coding circuitry and fast channel switching
5134827490Method of synchronizing two binary trains
5144821227Plesiochronous matching apparatus
5154819225Redundant and fault tolerant communication link
5164811359Protection channel monitoring system using a check signal comprising two different N-bit code patterns sequentially arranged at random
5174797903Channel switching system without instantaneous signal loss
5184797625Device for detecting bit phase difference

1988

5194792950Multiplex wiring system
5204782512Interfacing data units to a telephone line
5214774703Switching system for digital transmission network

1987

5224686675Channel switching system
5234680750Universal high-speed span line switch
5244641126Multiple-mode electrical power and communications interface

1986

5254633473Fault tolerant communications interface
5264627045Alternating communication channel switchover system
5274625314Method for the recognition of the outage of one or more transmission channels in a redundantly designed optical transmission system
5284607256Plant management system
5294600896Circuit for limiting jitter transients during switching of phase control signals to an oscillator
5304583224Fault tolerable redundancy control

1985

5314511859Apparatus for generating a common output signal as a function of any of a plurality of diverse input signals

1984

5324477895Synchronized protection switching arrangement
5334475049Redundant serial communication circuit
5344456997Facility for fail-safe data transmission between trackside equipment of a guideway and vehicles moving therealong
5354442521Switching device for detecting interruptions in transmission lines
5364442518Channel switching system for use in a digital communication system
5374435704Loop transmission system

1983

5384385392Modem fault detector and corrector system
5394375681Protected muldem with interchangeable circuits of different data rates

1982

5404347605Multiplexed telecommunication systems
5414347603System for exchanging encoded messages between stations
5424328577Muldem automatically adjusting to system expansion and contraction

1981

5434301533Technique for increasing the rain margin of a TDMA satellite communication system
5444245342One-for-n modem control apparatus

1980

5454234956Digital relay systems

1979

5464164629Time base for synchronous generation of frame and clock pulses

1978

5474076961Automatic switching unit for data communications network
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017