Assignee
CIENA CORP
US1,574 patents
Top patents by PatentIndex Score
US7899340B1Mar 1, 2011
Laser control in a coherent optical receiver
CIENA CORP72 citations99
US6049413AApr 11, 2000
Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages
CIENA CORP210 citations99
US5778118AJul 7, 1998
Optical add-drop multiplexers for WDM optical communication systems
CIENA CORP190 citations99
US5742416AApr 21, 1998
Bidirectional WDM optical communication systems with bidirectional optical amplifiers
CIENA CORP194 citations99
US5712932AJan 27, 1998
Dynamically reconfigurable WDM optical communication systems with optical routing systems
CIENA CORP178 citations99
US5659351AAug 19, 1997
Switch and insertion networks in optical cable TV system
CIENA CORP137 citations99
US5579143ANov 26, 1996
Optical system with tunable in-fiber gratings
CIENA CORP145 citations99
US5557442ASep 17, 1996
Optical amplifiers with flattened gain curves
CIENA CORP122 citations99
US5532864AJul 2, 1996
Optical monitoring channel for wavelength division multiplexed optical communication system
CIENA CORP143 citations99
US8009985B1Aug 30, 2011
Traffic driven variable bandwidth optical transmission
CIENA CORP62 citations98
US7936999B1May 3, 2011
Automatic gain control in a coherent optical receiver
CIENA CORP84 citations98
US7860205B1Dec 28, 2010
Clock synchronization using a weighted least squares error filtering technique
CIENA CORP66 citations98
US7756421B2Jul 13, 2010
Electrical domain compensation of non-linear effects in an optical communications system
CIENA CORP111 citations98
US7310688B1Dec 18, 2007
Relative addressing for network elements
CIENA CORP81 citations98
US7280529B1Oct 9, 2007
Providing network management access through user profiles
CIENA CORP127 citations98
US7266595B1Sep 4, 2007
Accessing network device data through user profiles
CIENA CORP284 citations98
US7240364B1Jul 3, 2007
Network device identity authentication
CIENA CORP602 citations98
US7222147B1May 22, 2007
Processing network management data in accordance with metadata files
CIENA CORP381 citations98
US7143153B1Nov 28, 2006
Internal network device dynamic health monitoring
CIENA CORP476 citations98
US7020696B1Mar 28, 2006
Distributed user management information in telecommunications networks
CIENA CORP400 citations98
US6983362B1Jan 3, 2006
Configurable fault recovery policy for a computer system
CIENA CORP146 citations98
US6934749B1Aug 23, 2005
Tracking distributed data retrieval in a network device
CIENA CORP258 citations98
US6904462B1Jun 7, 2005
Method and system for allocating protection path resources
CIENA CORP70 citations98
US6178038B1Jan 23, 2001
Optical amplifier having an improved noise figure
CIENA CORP87 citations98
US6069719AMay 30, 2000
Dynamically reconfigurable optical add-drop multiplexers for WDM optical communication systems
CIENA CORP89 citations98
US5963361AOct 5, 1999
Optical amplifier having a variable attenuator controlled based on detected ASE
CIENA CORP92 citations98
US5938309AAug 17, 1999
Bit-rate transparent WDM optical communication system with remodulators
CIENA CORP119 citations98
US5812306ASep 22, 1998
Bidirectional WDM optical communication systems with bidirectional optical amplifiers
CIENA CORP108 citations98
US5778132AJul 7, 1998
Modular optical amplifier and cassette system
CIENA CORP239 citations98
US5748349AMay 5, 1998
Gratings-based optical add-drop multiplexers for WDM optical communication system
CIENA CORP95 citations98
US5726784AMar 10, 1998
WDM optical communication system with remodulators and diverse optical transmitters
CIENA CORP164 citations98
US5696615ADec 9, 1997
Wavelength division multiplexed optical communication systems employing uniform gain optical amplifiers
CIENA CORP103 citations98
US5673129ASep 30, 1997
WDM optical communication systems with wavelength stabilized optical selectors
CIENA CORP153 citations98
US5557439ASep 17, 1996
Expandable wavelength division multiplexed optical communications systems
CIENA CORP143 citations98
US5504609AApr 2, 1996
WDM optical communication system with remodulators
CIENA CORP183 citations98
US10171161B1Jan 1, 2019
Machine learning for link parameter identification in an optical communications system
CIENA CORP57 citations97
US8005368B2Aug 23, 2011
Signal equalizer in a coherent optical receiver
CIENA CORP43 citations97
US7733787B1Jun 8, 2010
Dependability measurement schema for communication networks
CIENA CORP102 citations97
US7693976B2Apr 6, 2010
Granular management of network resources
CIENA CORP137 citations97
US7349960B1Mar 25, 2008
Throttling distributed statistical data retrieval in a network device
CIENA CORP228 citations97
US7263597B2Aug 28, 2007
Network device including dedicated resources control plane
CIENA CORP171 citations97
US7225240B1May 29, 2007
Decoupling processes from hardware with logical identifiers
CIENA CORP104 citations97
US7062642B1Jun 13, 2006
Policy based provisioning of network device resources
CIENA CORP196 citations97
US7035540B2Apr 25, 2006
Optical fiber ring communication system
CIENA CORP93 citations97
US6980783B2Dec 27, 2005
Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system
CIENA CORP187 citations97
US6952529B1Oct 4, 2005
System and method for monitoring OSNR in an optical network
CIENA CORP70 citations97
US6816461B1Nov 9, 2004
Method of controlling a network element to aggregate alarms and faults of a communications network
CIENA CORP171 citations97
US6742154B1May 25, 2004
Forward error correction codes for digital optical network optimization
CIENA CORP100 citations97
US6414595B1Jul 2, 2002
Method and system for processing alarm objects in a communications network
CIENA CORP158 citations97
US6337737B1Jan 8, 2002
Fiber-Bragg-grating-based strain measuring apparatus, system and method
CIENA CORP86 citations97
Showing the top 50 of 1,574 patents by PatentIndex Score.