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Class Information
Number: 398/16
Name: Optical communications > Diagnostic testing > Test signal
Description: Subject matter wherein the operational condition of an optical communication network or its component is monitored for testing or evaluating using an external stimulus signal.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8712252 Optical signal output apparatus, electrical signal output apparatus, and test apparatus Apr. 29, 2014
8712236 Power management implementation in an optical link Apr. 29, 2014
8705955 Optical access network, secondary network side termination node of an optical access network, and method for operating a network side termination node Apr. 22, 2014
8693866 Fiber diagnosis system for WDM optical access networks Apr. 8, 2014
8693867 Methods and systems for frequency stabilisation of multiple lasers Apr. 8, 2014
8670662 Evaluating the position of an optical fiber disturbance Mar. 11, 2014
8666243 Optical transmission device, optical transmission method, and recording medium thereof Mar. 4, 2014
8660423 Circuit, system and method for monitoring an optical fiber network Feb. 25, 2014
8660424 Scalable high speed gigabit active bundle link and tester Feb. 25, 2014
8655167 Fiber diagnosis system for point-to-point optical access networks Feb. 18, 2014
8638673 Communication path monitoring method and transmission apparatus Jan. 28, 2014
8639112 Testing of transmitters for communication links by software simulation of reference channel and/or reference receiver Jan. 28, 2014
8606102 Test interface device, test system and optical interface memory device Dec. 10, 2013
8594496 Tunable coherent optical time division reflectometry Nov. 26, 2013
8594497 Multi-interface protocol analysis system Nov. 26, 2013
8588606 Optical network monitor PCB Nov. 19, 2013
8559813 Passband reflectometer Oct. 15, 2013
8554071 Optical transmission apparatus and continuity testing method Oct. 8, 2013
8526824 Correlation systems and methods with error compensation Sep. 3, 2013
8526821 Transceivers for testing networks and adapting to device changes Sep. 3, 2013
8498535 Testing of elements used in communication links Jul. 30, 2013
8494360 In-service optical network testing Jul. 23, 2013
8488959 Method and system for monitoring optical channels Jul. 16, 2013
8483559 System and method for monitoring a branched optical communication system Jul. 9, 2013
8483562 Method and apparatus for integrating automated switching in a passive optical network Jul. 9, 2013
8452174 Measuring differential group delay in an optical fiber May. 28, 2013
8452173 Optical network, monitoring unit and monitoring method May. 28, 2013
8452172 Testing an optical network May. 28, 2013
8442398 Performance monitoring in passive optical networks May. 14, 2013
8435191 Support structure for a sensor strip and sensor strip for mounting on said support structure May. 7, 2013
8437632 Polarization monitoring in polarization division multiplexing in optical communications May. 7, 2013
8433192 Dynamic performance monitoring systems and methods for optical networks Apr. 30, 2013
8417111 Optical network in-band control plane signaling, virtualized channels, and tandem connection monitoring systems and methods Apr. 9, 2013
8417113 Auxiliary network for fiber optic system health management Apr. 9, 2013
8417114 Apparatus, system and method for network monitoring Apr. 9, 2013
8407535 Method and apparatus for generating jitter test patterns on a high performance serial bus Mar. 26, 2013
8406621 Method and apparatus for measuring a factor characterizing a balanced detection device Mar. 26, 2013
8406620 Passive optical network (PON) in-band optical time domain reflectometer (OTDR) Mar. 26, 2013
8396360 Communicating information Mar. 12, 2013
8391707 Maintenance friendly optical fiber switching system Mar. 5, 2013
8368533 System and method for facilitating connection of fiber optic data communication systems Feb. 5, 2013
8346101 Systems and methods for diagnostic monitoring of optical modulation amplitude at an optical receiver using automatic gain control Jan. 1, 2013
8331777 Passive optical test termination Dec. 11, 2012
8326148 Optical network Dec. 4, 2012
8320757 Method and device for starting up an optical transmission link Nov. 27, 2012
8311409 Signal switching module for optical network monitoring and fault locating Nov. 13, 2012
8306417 Bidirectional multi-wavelength optical signal routing and amplification module Nov. 6, 2012
8289858 ONU delay and jitter measurement Oct. 16, 2012
8290361 Transmission line monitoring system Oct. 16, 2012
8290362 Predictive end-to-end management for SONET networks Oct. 16, 2012

1 2 3 4 5

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