Assignee
TELLABS OPERATIONS INC
US·268 granted patents·52 pending applications·5,687 citations·filing 1995–2018
Top patents by PatentIndex Score
320 records- 0198US9173158B2Method and apparatus for improving LTE enhanced packet core architecture using openflow network controllerTELLABS OPERATIONS INC·Filed 2013·Granted Oct 27, 2015·60 cites·20 claims
- 0298US6795424B1Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systemsTELLABS OPERATIONS INC·Filed 1998·Granted Sep 21, 2004·279 cites·41 claims
- 0398US6522746B1Synchronization of voice boundaries and their use by echo cancellers in a voice processing systemTELLABS OPERATIONS INC·Filed 2000·Granted Feb 18, 2003·204 cites·31 claims
- 0496US7072295B1Allocating network bandwidthTELLABS OPERATIONS INC·Filed 2000·Granted Jul 4, 2006·285 cites·92 claims
- 0595US7889675B2Method and system for multi-layer network routingTELLABS OPERATIONS INC·Filed 2006·Granted Feb 15, 2011·49 cites·22 claims
- 0695US7558481B2Method for optimizing enhanced DWDM networksTELLABS OPERATIONS INC·Filed 2005·Granted Jul 7, 2009·45 cites·22 claims
- 0795US7412125B2Optical dispersion compensationTELLABS OPERATIONS INC·Filed 2005·Granted Aug 12, 2008·29 cites·20 claims
- 0895US6766292B1Relative noise ratio weighting techniques for adaptive noise cancellationTELLABS OPERATIONS INC·Filed 2000·Granted Jul 20, 2004·167 cites·44 claims
- 0995US6526140B1Consolidated voice activity detection and noise estimationTELLABS OPERATIONS INC·Filed 2000·Granted Feb 25, 2003·104 cites·36 claims
- 1094US8737776B2Methods and apparatus for constructing large wavelength selective switches using parallelismTELLABS OPERATIONS INC·Filed 2013·Granted May 27, 2014·9 cites·20 claims
- 1194US6628651B1Communication switching techniques with improved frame formatTELLABS OPERATIONS INC·Filed 2000·Granted Sep 30, 2003·63 cites·34 claims
- 1293US7916502B2Stackable cable trayTELLABS OPERATIONS INC·Filed 2008·Granted Mar 29, 2011·23 cites·33 claims
- 1393US7289428B2Inter-working mesh telecommunications networksTELLABS OPERATIONS INC·Filed 2001·Granted Oct 30, 2007·45 cites·49 claims
- 1493US6966009B1System and method for aligning data in a network environmentTELLABS OPERATIONS INC·Filed 2002·Granted Nov 15, 2005·32 cites·30 claims
- 1593US6591234B1Method and apparatus for adaptively suppressing noiseTELLABS OPERATIONS INC·Filed 2000·Granted Jul 8, 2003·87 cites·25 claims
- 1692US7664349B2Beam steering element with built-in detector and system for use thereofTELLABS OPERATIONS INC·Filed 2009·Granted Feb 16, 2010·10 cites·20 claims
- 1792US7110668B2Optical network connection test apparatus and methodsTELLABS OPERATIONS INC·Filed 2004·Granted Sep 19, 2006·33 cites·16 claims
- 1891US7630634B1Method and apparatus for managing an optical signalTELLABS OPERATIONS INC·Filed 2005·Granted Dec 8, 2009·16 cites·26 claims
- 1991US7613392B21:N protection in an optical terminalTELLABS OPERATIONS INC·Filed 2006·Granted Nov 3, 2009·18 cites·21 claims
- 2091US7315510B1Method and apparatus for detecting MPLS network failuresTELLABS OPERATIONS INC·Filed 2000·Granted Jan 1, 2008·77 cites·24 claims
- 2191US7308198B1Method for allocating protection bandwidth in a telecommunications mesh networkTELLABS OPERATIONS INC·Filed 2002·Granted Dec 11, 2007·105 cites·20 claims
- 2291US6526139B1Consolidated noise injection in a voice processing systemTELLABS OPERATIONS INC·Filed 2000·Granted Feb 25, 2003·70 cites·17 claims
- 2391US6523003B1Spectrally interdependent gain adjustment techniquesTELLABS OPERATIONS INC·Filed 2000·Granted Feb 18, 2003·79 cites·16 claims
- 2490US9113400B2Method and apparatus for offloading packet traffic from LTE network to WLAN using DPITELLABS OPERATIONS INC·Filed 2013·Granted Aug 18, 2015·10 cites·19 claims
- 2590US7139462B1Fiber optic gasket and enclosureTELLABS OPERATIONS INC·Filed 2005·Granted Nov 21, 2006·77 cites·15 claims
- 2690US6801680B2Signal interconnect incorporating multiple modular unitsTELLABS OPERATIONS INC·Filed 2001·Granted Oct 5, 2004·31 cites·19 claims
- 2789US7099578B11:N protection in an optical terminalTELLABS OPERATIONS INC·Filed 1999·Granted Aug 29, 2006·94 cites·87 claims
- 2889US6771590B1Communication system clock synchronization techniquesTELLABS OPERATIONS INC·Filed 2000·Granted Aug 3, 2004·37 cites·102 claims
- 2988US7881184B2Reverse notification tree for data networksTELLABS OPERATIONS INC·Filed 2007·Granted Feb 1, 2011·13 cites·20 claims
- 3088US7804767B1Protection/restoration of MPLS networksTELLABS OPERATIONS INC·Filed 2000·Granted Sep 28, 2010·55 cites·21 claims
- 3188US7613102B2Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications systemTELLABS OPERATIONS INC·Filed 2007·Granted Nov 3, 2009·11 cites·20 claims
- 3288US7430242B2Spectrally constrained impulse shortening filter for a discrete multi-tone receiverTELLABS OPERATIONS INC·Filed 2007·Granted Sep 30, 2008·11 cites·14 claims
- 3388US7298693B1Reverse notification tree for data networksTELLABS OPERATIONS INC·Filed 2000·Granted Nov 20, 2007·50 cites·20 claims
- 3487US10142322B2Methods and apparatus for authenticating identity of web access from a network elementTELLABS OPERATIONS INC·Filed 2013·Granted Nov 27, 2018·13 cites·19 claims
- 3587US7461003B1Methods and apparatus for improving the quality of speech signalsTELLABS OPERATIONS INC·Filed 2003·Granted Dec 2, 2008·56 cites·25 claims
- 3687US7437048B2Equipment bay cable management systemTELLABS OPERATIONS INC·Filed 2005·Granted Oct 14, 2008·72 cites·20 claims
- 3787US6882652B1Private lines traversing a packet network and re-arrangement of channels among packet network connectionsTELLABS OPERATIONS INC·Filed 2000·Granted Apr 19, 2005·63 cites·15 claims
- 3886US7881568B2Signal interconnect incorporating multiple modular unitsTELLABS OPERATIONS INC·Filed 2008·Granted Feb 1, 2011·8 cites·19 claims
- 3986US7236586B2Synchronization of echo cancellers in a voice processing systemTELLABS OPERATIONS INC·Filed 2005·Granted Jun 26, 2007·12 cites·19 claims
- 4086US6785438B2Strictly non-blocking optical switch core having optimized switchingTELLABS OPERATIONS INC·Filed 2003·Granted Aug 31, 2004·20 cites·30 claims
- 4186US6671667B1Speech presence measurement detection techniquesTELLABS OPERATIONS INC·Filed 2000·Granted Dec 30, 2003·51 cites·24 claims
- 4286US6631175B2Spectrally constrained impulse shortening filter for a discrete multi-tone receiverTELLABS OPERATIONS INC·Filed 1998·Granted Oct 7, 2003·112 cites·24 claims
- 4386US6167062ASystem and associated method for the synchronization and control of multiplexed payloads over a telecommunications networkTELLABS OPERATIONS INC·Filed 1998·Granted Dec 26, 2000·65 cites·12 claims
- 4486US5930016AUpgradable modular wavelength division multiplexerTELLABS OPERATIONS INC·Filed 1996·Granted Jul 27, 1999·88 cites·20 claims
- 4585US8050288B2Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systemsTELLABS OPERATIONS INC·Filed 2001·Granted Nov 1, 2011·21 cites·22 claims
- 4685US7821946B2Method and system for multi-layer network routingTELLABS OPERATIONS INC·Filed 2007·Granted Oct 26, 2010·11 cites·20 claims
- 4785US7424424B2Communication system noise cancellation power signal calculation techniquesTELLABS OPERATIONS INC·Filed 2006·Granted Sep 9, 2008·13 cites·18 claims
- 4885US7362811B2Audio enhancement communication techniquesTELLABS OPERATIONS INC·Filed 2006·Granted Apr 22, 2008·16 cites·22 claims
- 4985US7301911B2Method and system for multi-layer network routingTELLABS OPERATIONS INC·Filed 2003·Granted Nov 27, 2007·37 cites·22 claims
- 5085US7095956B2Method and apparatus for validating a path through a switched optical networkTELLABS OPERATIONS INC·Filed 2001·Granted Aug 22, 2006·38 cites·7 claims
Showing the top 50 of 320 patent records by PatentIndex Score.
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