Matches 1 - 50 out of 104 1 2 3 >


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US20140099099 FAULT DETECTOR FOR OPTICAL NETWORK COMMUNICATION SYSTEM  
A fault detection method includes collecting operational parameters of the optical network, collecting information about the structure of the optical network, providing diagnosis outputs by a...
US20120328283 Predictive End-To-End Management For Sonet Networks  
A system and method is disclosed that allows for the monitoring, analyzing and reporting on performance, availability and quality of optical network paths. The correlation of PM parameter metrics...
US20130322867 OPTICAL TRANSPORT NETWORK GENERIC NON-CLIENT SPECIFIC PROTECTION SYSTEMS AND METHODS  
Systems and methods for generic non-client specific 1+1 protection are described supporting a uni-directional protection scheme for client interfaces on Optical Transport Network (OTN) networking...
US20090041455 PASSIVE OPTICAL NETWORK SYSTEMS WITH LOOP DETECTION CAPABILITY AND METHODS FOR THE LOOP DETECTION  
A passive optical network (PON) system with loop detection capability is disclosed. The PON system may include an optical line terminal (OLT) and an optical network unit (ONU). The PON system may...
US20140233941 Method for Identifying the Optical Network Unit Power Off Reason  
A passive optical network (PON) component comprising a power switch, a detector configured to monitor the power switch, and a processor configured to receive an interrupt from the detector and...
US20120163803 INFORMATION PROCESSING METHOD IN OPTICAL NETWORK, OPTICAL COMMUNICATION APPARATUS AND SYSTEM  
An information processing method is disclosed according to the embodiments of the present invention. The method includes: A node receives a first message from overhead of a first dimension; the...
US20130039644 OPTICAL NETWORK APPARATUS  
There is provided an optical network apparatus included in an optical network in which alarm information including a type and a position of a generated failure is transferred, the optical network...
US20130279902 DIGITAL PROTECTION RELAY  
A digital protection relay is provided. An amplification factor is differently applied such that loss of a quantity of light with respect to an input signal is compensated for according to a...
US20140147108 METHOD AND APPARATUS FOR PROCESSING ALARM UNDER POWER-SAVING MODE IN PASSIVE OPTICAL NETWORK (PON) SYSTEM  
Disclosed in the present invention are an alarm processing method and device for a PON system in power-saving mode, for solving the technical problem that the PON system cannot process the alarm...
US20090196601 Alarm surveillance for cascaded optical access  
A system and method is disclosed that allows real-time processing of child OPOI and rider service alarms from a parent OPOI which determines if one or more STS alarms are associated with a rider...
US20080019689 Method For Remote Access Of An Optical Network Device In A Passive Optical Network  
The claimed invention provides a method of a remotely accessing a decentralized device in a conventional fiber to the premises network via a centralized display device operatively connected to an...
US20110008040 Method to Diagnose an Optical Communication Network  
A method for diagnosing an optical communication network having a control system, an optical hub, and multiple optical network terminators. The hub communicates with all the network terminators...
US20150037026 Impairment Aware Path Computation Element Method and System  
The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request...
US20080050113 ELECTRICAL OVERSTRESS EVENT INDICATOR ON ELECTRONIC CIRCUITRY  
Detecting electrical overstress events in electronic circuitry such as optical emitters. In one example embodiment, a laser includes an active area and a contact region in electrical communication...
US20140314402 PREVENTING INVALID DEFECT DETECTION DURING OTN OUT-OF-FRAME STATES  
Methods and systems can suppress invalid defect detection when Out-Of-Frame (OOF) conditions occur within an Optical Transport Network. One method for processing a report of a defect during an OOF...
US20080253761 DETECTING ABNORMALITY IN AN OPTICAL RECEIVER  
An optical apparatus comprising: a branching unit branching an input light modulated by DQSPK format and thereby outputting a first branched light and a second branched light; a first branch and a...
US20110122766 Smart Mechanism for Multi-Client Bidirectional Optical Channel Protection Scheme  
Methods and apparatus for efficiently allowing protection switch information to be communicated on bidirectional lines are disclosed. According to one aspect of the present invention, a method for...
US20080279549 OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT CAPABLE OF ALARM TRANSMISSION SCHEME FOR PASSIVE OPTICAL NETWORK SYSTEM  
A station-side apparatus adapted for use in a passive optical network (PON) system is disclosed, which remotely collects inside information of optical network terminals (ONTs) even before...
US20090263124 METHODS OF PROTECTION SHARING FOR MULTI-PROTECTED OPTICAL DEMANDS IN LARGE-SCALE WDM MESH NETWORKS  
A method and system for identifying and, optionally, managing protection resource sharing opportunities, such as within a large-scale wavelength-division multiplexing (WDM) mesh network.
US20090238559 Monitoring method for a passive optical network  
The invention relates to a method for monitoring a passive optical network (1), PON, having a tree-like structure with a main line (3) and a plurality of branches (6.1 to 6.3), the method...
US20100046940 Reliable Power Source for Fiber to Home Network Termination and Other Critical Applications  
A system and apparatus are provided for supplying network line power (NLP). In one embodiment a network line power termination (NLPT) provides NLP to a network termination. The NLPT includes input...
US20080019688 Method and Apparatus of Routing Convergence in Control Plane of an Intelligent Optical Network  
The embodiments of the invention provide a method of routing convergence in a control plane of an intelligent optical network, which includes: a function unit perceiving a service link state...
US20080166119 Optical network unit for error detection and recovery of optic module and control method thereof  
An optical network unit for error detection and recovery of an optical module, and a control method thereof are provided. The optical network unit includes a passive optical network medium access...
US20090148156 OPTICAL TRANSMITTING AND RECEIVING APPARATUS AND METHOD FOR ANALYZING ABNORMALITY OR FAILURE OF THE OPTICAL TRANSMITTING AND RECEIVING APPARATUS  
An optical transmitting and receiving apparatus 1 has a transmitting circuit unit 20 including a light emitting element 2 and a driving circuit 3 which drives the light emitting element 2, a...
US20130202289 METHOD AND DEVICE FOR PROVIDING ON-BOARD FAILURE LOGGING FOR PLUGGABLE OPTICAL MODULES  
A method of capturing a failure log for an optical module may be provided. The optical module may have an optical monitoring circuit and a buffer memory. The method may include measuring...
US20090180774 METHOD FOR ALLOCATING AND CONFIGURING TANDEM CONNECTION MONITORING (TCM)  
A method for allocating and configuring TCM in an embodiment of the present invention includes: configuring the domain that needs TCM in a network and the scope of the domain; determining the ODU...
US20090154920 ETHERNET SERVICE CONFIGURATION DEVICE, METHOD, AND SYSTEM IN PASSIVE OPTICAL NETWORK  
An Ethernet service configuration device, method, and system in a passive optical network (PON) are provided. The device includes a PON protocol processing module, an Ethernet module, and at least...
US20080267620 EYE SAFETY AND INTEROPERABILITY OF ACTIVE CABLE DEVICES  
An integrated cable configured to communicate over much of its length using one or more optical fibers includes an electrical connector at least one end. The electrical connector at a first end of...
US20090097845 NETWORK TERMINATION APPARATUS  
Apparatus for connecting telecommunications equipment of premises to a telecommunications network, the apparatus comprising a first module associated with the telecommunications equipment, a...
US20100272433 Method for Identifying the Optical Network Unit Power Off Reason  
A passive optical network (PON) component comprising a power switch, a detector configured to monitor the power switch, and a processor configured to receive an interrupt from the detector and...
US20090052889 OPTICAL NETWORK TERMINAL BACKUP BATTERY CENTRALIZED MONITORING AND VOLTAGE ALERT  
An optical network terminal (ONT) battery backup unit (BBU) battery voltage alert system (BVAS). This alert is provided as a supplement to an audio alarm which sounds when the backup battery is...
US20100014855 Fault location system and method for OC-N facility degradation  
A system and method is disclosed that detects the onset of failing optical subnetwork network elements and minimizes the volume of Performance Monitoring (PM) parameter data that must be acquired...
US20130121686 SYSTEMS AND METHODS FOR DISCOVERING NETWORK TOPOLOGY  
A method for determining network topology of a provider network includes selecting a first network element, selecting a first port on the first network element, and iteratively performing...
US20080240713 METHOD AND APPARATUS FOR AUTOMATIC RESTORATION DETECTION AND AUTOMATIC RESTORATION OF OPTICAL COMMUNICATION SYSTEM  
Methods and apparatuses for automatic restoration detection and automatic restoration of optical communication system are disclosed. In the methods, a first station sends an automatic restoration...
US20080002971 Optical telecommunications network terminal, an installation including the terminal, and a method of detecting a break in optical transmission means  
An optical telecommunications network terminal (12) includes a device (22) for generating downlink optical signals and a device (48) for receiving uplink optical signals, the optical signals being...
US20130121685 OPTICAL LAYER STATUS EXCHANGE OVER OSC - OAM METHOD FOR ROADM NETWORKS  
A method for receiving, by circuitry of an optical node adapted for wavelength multiplexing and wavelength switching, a signal over OSC comprising overhead information indicative of status of at...
US20080159738 IDENTIFIABLE FIBERS OPTICS  
The present invention provides for an optical cable and methods for interconnecting modular components with optical fibers. Each optical fiber is electronically labeled with a unique serial number...
US20130177307 VITAL DIGITAL INPUT  
A digital input interface is provided which can be checked for its reliability. The configuration of the circuit on the input side allows a high impedance for a DC input signal and a low impedance...
US20130051791 FAULT DETECTION METHOD AND DEVICE FOR OPTICAL DISTRIBUTION NETWORK, AND OPTICAL NETWORK SYSTEM  
The present invention provides a fault detection method and device of an optical distribution network, and an optical network system. At least one optical identifier equipment is disposed on a...
US20090196598 OPTICAL SOURCE LINK TRANSMISSION DEVICE AND METHOD  
An optical source link transmission device includes a sending end module and a receiving end module. A master optical source link, a backup optical source link, a master data channel, and a backup...
US20090123148 All-Optical CSMA/CD Apparatus In Base A Ethernet And The Method Therefor  
The invention relates to an Ethernet-based all-optical carrier sense multiple access/collision detection apparatus and method, and more particularly, to an apparatus and method capable of checking...
US20120230674 Triggers to Fault Information Insertion in Optical Transport Network  
Systems and methods for triggering fault information insertion in an optical network are disclosed. In accordance with certain embodiments of the present disclosure, a method may include...
US20110069951 APPARATUS AND METHOD FOR SUPPORTING MOBILITY OF A MOBILE TERMINAL THAT PERFORMS VISIBLE LIGHT COMMUNICATION  
A method and apparatus for supporting mobility of a mobile terminal in a Visible Light Communication (VLC) system. The method includes activating only necessary light sources for VLC considering...
US20100215358 POWER LINE DIAGNOSTIC SYSTEM  
An apparatus comprising a monitoring unit, a number of sensor units, a number of cables, and a number of thermoelectric generators. The number of sensor units is capable of making measurements at...
US20100111522 APPARATUS AND METHOD FOR MANAGING A NETWORK  
A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to monitor first and second access devices of a communications network for an...
US20120251097 PASSIVE ARCHITECTURAL OPTICAL DISTRIBUTION NETWORK  
Passive optical networks can experience faults that are unrecoverable. An embodiments of the present invention is a hybrid passive optical network configured to protect a primary optical path...
US20080019690 METHOD, SYSTEM AND APPARATUS FOR DETECTING FAILURE OF AN OPTICAL NETWORK TERMINAL OF A PASSIVE OPTICAL NETWORK  
A method for detecting a failure network terminal in a Passive Optical Network includes: changing timeslots assigned to potential failure network terminals one by one; and determining the failure...
US20090285576 Method and apparatus for feedback/configuration of optical network terminal (ONT) anomalies to/from a central location  
A method and system for collecting and analyzing diagnostic data relating to an Optical Network Terminal (ONT) anomaly or failure is disclosed. Example embodiments of the method and system employ...
US20080095532 Techique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices  
In a point-to-multipoint network of an optical line terminal (OLT) and multiple optical network units (ONUS) wherein each ONU is enabled to send a signal only within a time period enabled for the...
US20070237520 Methods and apparatus for identifying a passive optical network failure  
A method and corresponding apparatus is disclosed for determining a particular Optical Network Terminal (ONT) in a Passive Optical Network (PON) is malfunctioning by sending a continuous stream of...

Matches 1 - 50 out of 104 1 2 3 >