DATA SECURITY FOR NETWORKS COMBINING ENCRYPTION WITH ERROR CORRECTION

DATA TRANSMISSION METHOD AND APPARATUS, NETWORK DEVICE, AND STORAGE MEDIUM

METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTIFRAME, DEVICE, SYSTEM, AND STORAGE MEDIUM

Method and apparatus for sending service, method and apparatus for receiving service, and network system

Optical supervisory channel processing method and apparatus in optical network

Circuit emulation maintaining transport overhead integrity

Method and apparatus for sending and receiving multiframe, and storage medium

Flexible Ethernet switching systems and methods

Switching data signals of at least two types for transmission over a transport network providing both backhaul and fronthaul (Xhaul) connectivity

Method and apparatus for sending service, method and apparatus for receiving service, and network system

Semiconductor device

Switching data signals of at least two types for transmission over a transport network providing both backhaul and fronthaul (Xhaul)connectivity

Data processing method, communications device, and communications system

Flexible ethernet switching systems and methods

Optical module with a dual layer PCBA structure

Flexible ethernet switching systems and methods

Path computation method, path computation element, node device, and network system

Procedure, apparatus, and computer program for reducing a probability of fragmentation when supporting virtual concatenation (VCAT) services

Input-controllable dynamic cross-connect

Defect propagation of multiple signals of various rates when mapped into a combined signal

Control method, transmission apparatus, and recording medium comparing versions of circuit data and copying to match circuit data of first and second interfaces

Methods and systems of preserving client overhead bytes in optical transport network tunneling applications

Method and apparatus for administrative unit-3 circuit emulation

Transmission apparatus and processing method thereof

Compressing and decompressing signal data

Compressing and decompressing signal data

System and method for performing concatenation of diversely routed channels

Method and system for reducing the resource utilization of switch fabric in a SONET/SDH multiplexer by switching data on a TU level

Context-sensitive overhead processor

Unidirectional asymmetric traffic pattern systems and methods in switch matrices

Fast convergence on child link failures and weighted load balancing of aggregate ethernet/sonet bundles

Optical network system and WDM apparatus

Traffic driven variable bandwidth optical transmission

Method of dynamically adjusting transmission capacity of a data transmission connection

Method and system for multi-layer network routing

Optical network in-band control plane signaling, virtualized channels, and tandem connection monitoring systems and methods

Method and system for arranging link resource fragments

Bandwidth defragmentation systems and methods in optical networks

Optical signal multiplexer card having front panel access to electrical and optical connectors for use in compact enclosure for optical signal multiplexer cards

Transmission device with function of packetizing and transmitting

Path computation method, path computation element, node device, and network system

Method to transmit multiple data-streams of varying capacity data using virtual concatenation

Method and apparatus for transmitting packet in optical transport network

Pseudo-noise insertion on unacceptable input data sequence in optical networks

Method and apparatus for regulating service of optical synchronous digital hierarchy network

ERROR DETECTION FOR DATA FRAMES

Context-sensitive overhead processor

Fast convergence on child link failures and weighted load balancing of aggregate ethernet/SONET bundles

Data transmission in an SDH network

Method, device, and system for multiplexing and mapping optical signals and demultiplexing and demapping optical signals

Method and apparatus for transceiving multiple services data simultaneously over SONET/SDH

INTERFACE CIRCUIT

Method and apparatus for signal formation with guaranteed consistent overhead insertion

Technique for accommodating electronic components on a multilayer signal routing device

SONET/SDH transmission apparatus

SWITCHING UNIT AND METHOD FOR A TELECOMMUNICATION NETWORK

Multi-service ethernet-over-sonet silicon platform

Method and apparatus for signal splitting and combining

System and method for performing concatenation of diversely routed channels

Method and system for multi-layer network routing

Multirate communication apparatus and method of controlling line-configuration of multirate communication apparatus

Method for transmitting data, and network element for a data network

Framer/mapper/multiplexor device with 1+1 and equipment protection

Multi-component compatible data architecture

Multi-component compatible data architecture

Transmission apparatus

Transmission device

Cross-connect method and cross-connect apparatus

Digital framer architecture with a framing marker

Method and system for network bandwidth allocation

Transmission of a tributary in synchronous mode at the level of a link of a data network

METHOD AND SYSTEM FOR MANAGING OFF-NET VIRTUAL CONNECTIONS

Dual asynchronous mapping of client signals of arbitrary rate

Synchronising serial data signals

Gateway for use in an electronic communications recording system

Optical communication system

Method for isolating layer 1 problems for digital signal circuits embedded in SONET

Multi-service channelized sonet mapper framer

System and method for second order multi-layer traffic grooming for optical network optimization

Service management channel for managing an optical networking service

Multi-rate, multi-protocol, multi-port line interface for a multiservice switching platform

METHOD AND APPARATUS FOR DATA PROCESSING

SONET multiplexer card having front panel access to electrical and optical connectors for use in compact enclosure for SONET multiplexer cards

METHOD, SYSTEM AND APPARATUS FOR TIME SYNCHRONIZATION

Context-sensitive overhead processor

OPTICAL TRANSPONDER INTERFACING MULTIPROTOCOL SIGNAL AND METHOD OF INTERFACING MULTIPROTOCOL SIGNAL

Device and method for selecting time slots based on resource use state

Transparent sub-wavelength network

Method and apparatus for transporting client signals over transport networks using virtual concatenation

Method and system for implementing network connection service

Ring transmission apparatus and signal processing method

Adaptive coding and modulation for synchronous connections

Automatic Connectivity Adaptation of Packet Traffic in a Transport Network

Method And Device For Realizing Primary-Backup Protective Of Low Order Cross Apparatus

Interface board and optical transmission equipment

Transponder unit, transponder unit control apparatus, transponder unit control method and recording medium recording transponder unit control program

Transponder, transmission system, transmission method and transmission program

MULTIPLEXED OPTICAL SIGNAL TRANSMISSION APPARATUS

Systems and methods for providing framing mapping, muxing and data processing

Digital cross-connect

Method for processing overheads of optical communication system and signal processing device

Method for transmitting LCAS protocol via an optical communication line

Method and apparatus for monitoring virtual concatenation group performance

Method for processing overhead of optical network and device thereof

Data byte load based network byte-timeslot allocation

Method and apparatus for converting interface between high speed data having various capacities

TRANSCEIVER SYSTEM AND METHOD SUPPORTING VARIABLE RATES AND MULTIPLE PROTOCOLS

METHOD AND APPARATUS FOR REMOVING MEMBER OF LCAS FROM SINK AND STATE MACHINE AT SINK

Method and device for signal transporting

Method and apparatus for transmitting overhead information

Mapping six (6) eight (8) mbit/s signals to a SONET frame

T-CARRIER MULTIPLEXER AND DEMULTIPLEXER WITH ADD/DROP CAPABILITY

Sampled accumulation system and method for jitter attenuation

Multi-component compatible data architecture

Multiplexed data stream timeslot map

Method and system for multi-layer network routing

Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same

Method and device of transmitting SDH services in passive optical network

Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same

Device for synchronizing between an active unit and a standby unit

Transmission apparatus

Module for Network Interface Card

Method and device for synchronizing and multiplexing asynchronous signals

MULTIPLEX TRANSMISSION APPARATUS, MULTIPLEX TRANSMISSION SYSTEM, AND MULTIPLEX TRANSMISSION METHOD

Transmission apparatus

System and method for synchronous payload envelope mapping without pointer adjustments

Method and node apparatus for traffic protection in optical transport network

Node detection and ring configuration for physical star connected networks

Optical network design method

Uniform Switching System and Method for Synchronous Optical Network and Optical Transport Network

Method and device for transmitting low rate signals over an optical transport network

Transmission system

Multi-functional line card for metro optical applications

Optical transmission device, optical transmission method, and computer product

SONET management and control channel improvement

Frame transmitting/receiving method and device

Method for supporting data framing protocols by an MSTP device and an apparatus thereof

Momentary-disconnection-free switching device

Method and circuit for obtaining asynchronous demapping clock

Route selection with bandwidth sharing optimization over rings

Wavelength-division multiplexed optical transmission system

Method for reducing capacity of virtual concatenation group and communication network thereof

System and method for retransmission of data

Transmitter

Utilizing available SONET overhead bytes for additional signaling channels

Method and device for demapping a tributary recovering lower order synchronism

Data packaging and transport method and apparatus

Communication systems

Synchronous digital hierarchy (sdh) tributary module and sdh equipment node

RECONFIGURABLE MULTIPLE PORT TRANSPONDER

Method and apparatus for using stuffing bytes over a G.709 signal to carry multiple streams

Method and circuit for processing data in communication networks

Signal multiplexing apparatus and stuff controlling method therein

Telecommunications transport methods and systems for the transparent mapping/demapping of client data signals

Reconfigurable multiple port transponder

Combined hardware and software implementation of link capacity adjustment scheme (LCAS) in SONET (synchronous optical network) virtual concatenation (VCAT)

Methods and apparatus for deskewing VCAT/LCAS members

Multi-stage SONET overhead processing

Transmission device, network management method, and computer product

Bus interface for transfer of multiple SONET/SDH rates over a serial backplane

Method, apparatus and system for optical communications

Switching network

Data transmission in an SDH network

Programmable SONET framing

STM-1 to STM-64 SDH/SONET framer with data multiplexing from a series of configurable I/O ports

Method and system for automatically providing and adjusting optical channel concatenation

Method and apparatus for synchronous switching of optical transport network signals

Managing data in a subtended switch

RPR ring network system

Method and apparatus for automatically assigning virtual concatenation group members to virtual concatenation groups

Transmission device and upgrade method thereof

Data transmission apparatus for transmitting data using virtual concatenation

Compact enclosure for SONET multiplexer cards and SONET multiplexer card having front panel access to electrical and optical connectors

Algorithm to automatically configure a SONET/SDH demultiplexer by pushing a button, and displaying a result and status thereof

Method and apparatus for partitioning allocation and management of jitter buffer memory for tdm circuit emulation applications

System and method for performing concatentation of diversely routed channels

Method and apparatus for performing link defragmentation subject to an interface rate constraint

Method and system for discovering circuits in a network

SONET data byte switch

Method for transmitting data signals by means of virtually linked partial signals via synchronous data networks

Techniques for processing traffic transmitted over advanced switching compatible switch fabrics

Reduction of the transport capacity of a virtual concatenation group

Cascaded connection matrices in a distributed cross-connection system

Method for determining a master ring for an optical communications network

Mapping arbitrary signals into SONET

Communication multistage switching techniques

Method and apparatus for forward delay compensation for virtual concatenation

Overhead processing and generation techniques

Method and apparatus for extraction and insertion of plesiochronous overhead data

Optical transport system

Method for dynamic lossless adjustment of bandwidth of an embedded resilient packet ring network

Method and device for digitally measuring the phase of a signal

Unique numbering for SONET/SDH timeslots in network management system applications

Time multiplexed SONET line processing

Digital modulating and demodulating device which is compatible with both PDH and SDH signals by dividing input signal in multiple directions and combining input signals from multiple directions with matrix switching unit

System and method for mapping SONET management data to the payload of a SONET STS-1 frame

Network-based data transport architecture

Data context switching in a semantic processor

SDH transmission apparatus and signal transmission method

MULTI-RATE, MULTI-PROTOCOL, MULTI-PORT LINE INTERFACE FOR A MULTISERVICE SWITCHING PLATFORM

System and method for second order multi-layer traffic grooming for optical network optimization

Network element with multistage lower order switching matrix

Method of transporting data streams through an sdh switched network

Programmable SONET framing

Time division multiplexed link connections between a switching matrix and a port in a network element

Method and device for providing clock and synchronization in a telecommunication network element

Hardware functional partitioning in a system platform of a telecommunication network element

Node apparatus and maintenance and operation supporting device

Field reconfigurable line cards for an optical transport system

Communication apparatus and communication system

Transmission network system

Distributed switch architecture including a growth input/output bus structure

Concatenation of containers in synchronous digital hierarchy network

Methods and apparatus for controlling the flow of multiple signal sources over a single full duplex ethernet link

System and method for retransmission of data

Communications system

Transparent transmission method for administrative information of optical synchronous digital hierarchy devices of multi-vendors

Packet transmission system and a terminal apparatus

Utilizing the protecting bandwidth in a SONET network

Semi-transparent time division multiplexer/demultiplexer

Common LAN architecture and flow control relay

Procedure for sorting flows in a transport network carrying circuit data flows

Transmission apparatus having a function of changing path setting

Optical transponder which can be reconfigured in accordance with various types of client networks

Techniques to map and de-map signals

Method and system for replacing lost or delayed data in sonet/sdh emulation protocols

Method and apparatus for carrying out connection and related input/output processing functions in a synchronous digital hierarchy transport node

Virtual concatenation receiver processing with memory addressing scheme to avoid delays at address scatter points

Method and system for improved sonet data communications channel

Method and frame for "in-band" path failure detection and localization within an SDH/SONET network domain

Transparent sub-wavelength network

System and associated method for the synchronization and control of multiplexed payloads over a telecommunications network

Apparatus for processing OTN frames utilizing an efficient forward error correction

Efficient provisioning of a VT/TU cross-connect

Virtual private network (VPN) with channelized ethernet over sonet (EoS) interface and method

Shared network ring protection

Network span protection using span identifiers

Multiplexers in a synchronous optical network

System and method of tributary time-space switching

Input-controllable dynamic cross-connect