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Class Information
Number: 398/12
Name: Optical communications > Diagnostic testing > Fault location > Switch
Description: Subject matter wherein the component comprises an optical switch.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8712235 Transmission apparatus and network protection method Apr. 29, 2014
8665867 Method and device for processing switching control command Mar. 4, 2014
8634290 Apparatus and method for protection switching for mesh topolgy Jan. 21, 2014
8611740 System and method for protecting an extended passive optical network Dec. 17, 2013
8554071 Optical transmission apparatus and continuity testing method Oct. 8, 2013
8509624 Transceiver module sleep mode Aug. 13, 2013
8396361 Method for the protection of a passive optical transmission network as well as a passive optical transmission network with a corresponding protection mechanism Mar. 12, 2013
8374500 SONET/SDH transmission apparatus Feb. 12, 2013
8358929 Network protection switching mechanisms and methods of network protection Jan. 22, 2013
8355630 Polarity inversion detection for an optical circuit switch Jan. 15, 2013
8351782 Polarity inversion detection for an optical circuit switch Jan. 8, 2013
8335428 Method and system for protection switching Dec. 18, 2012
8331744 Optical switch Dec. 11, 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
8290362 Predictive end-to-end management for SONET networks Oct. 16, 2012
8247756 Bi-directional data and signal channels in optical interconnects Aug. 21, 2012
8244125 Passive optical network protection switching Aug. 14, 2012
8233791 Methods, systems, and computer readable media for providing virtual 1:N automatic protection switching (APS) and dynamic, in service configuration change for optical network interface equipmen Jul. 31, 2012
8233792 Switchable fiber termination Jul. 31, 2012
8224180 Method and system for protection switching Jul. 17, 2012
8155515 Method and apparatus for sharing common capacity and using different schemes for restoring telecommunications networks Apr. 10, 2012
8116623 Multi-ring network operating method and system Feb. 14, 2012
7965938 Method for mesh optical network service restoration Jun. 21, 2011
7936990 Method and node apparatus for traffic protection in optical transport network May. 3, 2011
7925155 Transmitting broadcast signals in a communication network Apr. 12, 2011
7912329 Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching Mar. 22, 2011
7903968 Optical network transmission channel failover switching device Mar. 8, 2011
RE42095 Method for transferring utility optical signals and optical-line network Feb. 1, 2011
7848646 Optical, network, node apparatus and method for recovery path fault Dec. 7, 2010
7805075 Methods of restoration in an ultra-long haul optical network Sep. 28, 2010
7787764 Optical network transmission channel failover switching device Aug. 31, 2010
7725025 Switchable fiber termination May. 25, 2010
7715709 Optical switch and network system including the same May. 11, 2010
7672585 Optical switch system Mar. 2, 2010
7630597 Master/slave multiple path optical switching device Dec. 8, 2009
7627244 Optical transmission apparatus, continuity testing method therein, and optical transmission system Dec. 1, 2009
7596290 Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching Sep. 29, 2009
7577355 Optical path cross-connect and optical wavelength multiplexing diversity communication system using the same Aug. 18, 2009
7561799 Optical path switching device Jul. 14, 2009
7542672 Optical switching apparatus with optical reflection monitor and reflection monitoring system Jun. 2, 2009
7526198 Methods of restoration in an ultra-long haul optical network Apr. 28, 2009
7483629 Optical transmission systems including optical protection systems, apparatuses and methods Jan. 27, 2009
7460783 Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures Dec. 2, 2008
7450519 Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor Nov. 11, 2008
7426347 Shared optical performance monitoring Sep. 16, 2008
7409154 System and method for a protected optical access ring network Aug. 5, 2008
7366413 Modular cross connect system with 3D-MEMS for optical telecommunication networks Apr. 29, 2008
7340163 Signaling protocol and architecture for protection rings Mar. 4, 2008
7312918 Optical transmission system having function of correcting noise light due to Raman amplification Dec. 25, 2007

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