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Class Information
Number: 398/1
Name: Optical communications > Fault recovery
Description: Subject matter wherein a corrective action is taken to return an inoperative or disfunctioning optical communication system or its component to a satisfactory operating condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7428354 |
System for detecting fault in optical-transmission path |
Sep. 23, 2008 |
| 7424224 |
Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence |
Sep. 9, 2008 |
| 7415205 |
Wavelength division multiplexed self-healing passive optical network using wavelength injection method |
Aug. 19, 2008 |
| 7412175 |
Interferometric polarization control |
Aug. 12, 2008 |
| 7406260 |
Method and system for network wide fault isolation in an optical network |
Jul. 29, 2008 |
| 7400829 |
Transmission apparatus and path selection method of a transmission apparatus |
Jul. 15, 2008 |
| 7391720 |
Local span mesh restoration (LSMR) |
Jun. 24, 2008 |
| 7369769 |
Ethernet passive optical network ring and its method of authorization and collision detection |
May. 6, 2008 |
| 7366413 |
Modular cross connect system with 3D-MEMS for optical telecommunication networks |
Apr. 29, 2008 |
| 7352966 |
Method and apparatus for capacity-efficient restoration in an optical communication system |
Apr. 1, 2008 |
| 7349479 |
Communications system of two-wire line enhancing fail-safe performance |
Mar. 25, 2008 |
| 7346277 |
Joint-layer restoration in packet-over-optical networks |
Mar. 18, 2008 |
| 7324750 |
Protection scheme for a communication network |
Jan. 29, 2008 |
| 7302190 |
Optical communication system including replaceable electro-optic and opto-electric converters |
Nov. 27, 2007 |
| 7289728 |
Use of variable ratio couplers for network protection and recovery |
Oct. 30, 2007 |
| 7283740 |
Optical ring network with optical subnets and method |
Oct. 16, 2007 |
| 7280470 |
Ring network for sharing protection resource by working communication paths |
Oct. 9, 2007 |
| 7277631 |
Method and apparatus for processing protection switching mechanism in optical channel shared protection rings |
Oct. 2, 2007 |
| 7260325 |
Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology |
Aug. 21, 2007 |
| 7212739 |
Protection switching arrangement for an optical switching system |
May. 1, 2007 |
| 7174096 |
Method and system for providing protection in an optical communication network |
Feb. 6, 2007 |
| 7158721 |
Performance monitoring of multiple channels in an automatic protection switched network |
Jan. 2, 2007 |
| 7155120 |
Link level network protection path calculation mechanism for use in optical networks |
Dec. 26, 2006 |
| 7151884 |
Method and system for re-establishing communication link in a network by using viral communication |
Dec. 19, 2006 |
| 7120359 |
Broadcast and select all optical network |
Oct. 10, 2006 |
| 7113706 |
Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence |
Sep. 26, 2006 |
| 7054264 |
Interconnect and gateway protection in bidirectional ring networks |
May. 30, 2006 |
| 7046929 |
Fault detection and isolation in an optical network |
May. 16, 2006 |
| 7043662 |
Communication device that performs automatic failure recovery and automatic failure recovery method |
May. 9, 2006 |
| 7020393 |
Method of synchronizing parallel optical links between communications components |
Mar. 28, 2006 |
| 6999677 |
Protection switching arrangement for an optical switching system |
Feb. 14, 2006 |
| 6999686 |
Wavelength management in an optical network |
Feb. 14, 2006 |
| 6868234 |
Optical telecommunications network |
Mar. 15, 2005 |
| 6850704 |
Low-overhead fault-tolerance techniques for optical and other cross-connect systems |
Feb. 1, 2005 |
| 6816680 |
Optical communications network and nodes for forming such a network |
Nov. 9, 2004 |
| 6810008 |
Immediate rerouting in data networks |
Oct. 26, 2004 |
| 6806590 |
Data bus for a plurality of nodes |
Oct. 19, 2004 |
| 6788839 |
Time slot tunable all-optical packet data routing switch |
Sep. 7, 2004 |
| 6775477 |
Optical communication network and protection methods |
Aug. 10, 2004 |
| 6771845 |
Open air optical channel |
Aug. 3, 2004 |
| 6763190 |
Network auto-provisioning and distributed restoration |
Jul. 13, 2004 |
| 6735392 |
System and method for transmitting and restoring an optical signal |
May. 11, 2004 |
| 6708000 |
Photonic node, photonic nodes for transmission and reception, and method of restoring traffic upon occurrence of link failure in optical path network |
Mar. 16, 2004 |
| 6567194 |
Optical communication network and protection methods |
May. 20, 2003 |
| 6563979 |
Automatically switched redundant switch configurations |
May. 13, 2003 |
| 6563615 |
Technique for detecting noise on a data channel |
May. 13, 2003 |
| 6483616 |
Safe repair of malfunction in optical communication system |
Nov. 19, 2002 |
| 6323978 |
Robust variable-bit-rate optical channel overhead |
Nov. 27, 2001 |
| 6304347 |
Optical power management in an optical network |
Oct. 16, 2001 |
| 6167171 |
Cascading optical multiplexing device |
Dec. 26, 2000 |
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