Guangzhi Li

Person

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for restoration in a multimedia IP network
- Patent number 10,931,567
- Issue date Feb 23, 2021
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadcast services platform and methods for use therewith
- Patent number 10,601,731
- Issue date Mar 24, 2020
- AT&T Intellectual Property I, L.P.
- Rakesh Sinha
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadcast services platform and methods for use therewith
- Patent number 10,447,616
- Issue date Oct 15, 2019
- AT&T Intellectual Property I, L.P.
- Rakesh Sinha
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Efficient network utilization using optically switched superchannels
- Patent number 10,250,351
- Issue date Apr 2, 2019
- FutureWei Technologies, Inc.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for restoration in a multimedia IP network
- Patent number 9,979,634
- Issue date May 22, 2018
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for efficient network utilization using superc...
- Patent number 9,941,992
- Issue date Apr 10, 2018
- FutureWei Technologies, Inc.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for restoration in a multimedia IP network
- Patent number 9,503,315
- Issue date Nov 22, 2016
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing a route recommendation
- Patent number 9,264,344
- Issue date Feb 16, 2016
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing a route recommendation
- Patent number 8,989,018
- Issue date Mar 24, 2015
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reachability matrices spanning multiple domains in an optical network
- Patent number 8,897,641
- Issue date Nov 25, 2014
- AT&T Intellectual Property I, L.P.
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing a control plane across multiple...
- Patent number 8,824,461
- Issue date Sep 2, 2014
- AT&T Intellectual Property II, L.P.
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth management for MPLS fast rerouting
- Patent number 8,780,697
- Issue date Jul 15, 2014
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Metropolitan IP aggregation network design tool
- Patent number 8,750,161
- Issue date Jun 10, 2014
- AT&T Intellectual Property I, L.P.
- David Matthews
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Standby restoration signaling for optical networks
- Patent number 8,687,956
- Issue date Apr 1, 2014
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for restoration in a multimedia IP network
- Patent number 8,665,698
- Issue date Mar 4, 2014
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Physically-diverse routing in heterogeneous optical networks
- Patent number 8,515,280
- Issue date Aug 20, 2013
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing a control plane across multiple...
- Patent number 8,467,382
- Issue date Jun 18, 2013
- AT&T Intellectual Property II, L.P.
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reachability matrices spanning multiple domains in an optical network
- Patent number 8,452,176
- Issue date May 28, 2013
- AT&T Intellectual Property I, L.P.
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth management for MPLS fast rerouting
- Patent number 8,374,077
- Issue date Feb 12, 2013
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Standby restoration signaling for optical networks
- Patent number 8,260,133
- Issue date Sep 4, 2012
- AT&T Intellectual Property I, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth management for MPLS fast rerouting
- Patent number 8,208,371
- Issue date Jun 26, 2012
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Shared mesh restoration with pre-configured standby lightpaths
- Patent number 8,150,257
- Issue date Apr 3, 2012
- AT&T Intellectual Property II, L.P.
- Gagan L. Choudhury
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for restoration and normalization in a mesh network
- Patent number 7,974,183
- Issue date Jul 5, 2011
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for generating a set of aggregates
- Patent number 7,904,571
- Issue date Mar 8, 2011
- AT&T Intellectual Property II, L.P.
- Charles R. Kalmanek, Jr.
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Two-phase fast reroute with optimized traffic engineering
- Patent number 7,859,993
- Issue date Dec 28, 2010
- AT&T Intellectual Property II, L.P.
- Gagan L. Choudhury
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for restoration in a multimedia IP network
- Patent number 7,830,785
- Issue date Nov 9, 2010
- AT&T Labs, Inc.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for unidirectional and bidirectional label switched path set...
- Patent number 7,782,772
- Issue date Aug 24, 2010
- AT&T Intellectual Property II, L.P.
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for reducing multiplexing and demultiplexing cost in ul...
- Patent number 7,769,296
- Issue date Aug 3, 2010
- AT&T Intellectual Property II, L.P.
- Angela Lan Chiu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for selecting a restoration path in a mesh network
- Patent number 7,688,720
- Issue date Mar 30, 2010
- AT&T Intellectual Property II, L.P.
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for restoration and normalization in a mesh network
- Patent number 7,652,983
- Issue date Jan 26, 2010
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK
- Publication number 20180270147
- Publication date Sep 20, 2018
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Guangzhi LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EFFICIENT NETWORK UTILIZATION USING OPTICALLY SWITCHED SUPERCHANNELS
- Publication number 20180102865
- Publication date Apr 12, 2018
- FutureWei Technologies, Inc.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR EFFICIENT NETWORK UTILIZATION USING SUPERC...
- Publication number 20180076920
- Publication date Mar 15, 2018
- FutureWei Technologies, Inc.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and Method for Restoration in a Multimedia IP Network
- Publication number 20170070422
- Publication date Mar 9, 2017
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Guangzhi LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BROADCAST SERVICES PLATFORM AND METHODS FOR USE THEREWITH
- Publication number 20160315876
- Publication date Oct 27, 2016
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Rakesh Sinha
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING A ROUTE RECOMMENDATION
- Publication number 20150195186
- Publication date Jul 9, 2015
- AT&T INTELLECTUAL PROPERTY I, L.P.
- GUANGZHI LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING A CONTROL PLANE ACROSS MULTIPLE...
- Publication number 20130279899
- Publication date Oct 24, 2013
- ROBERT DOVERSPIKE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reachability Matrices Spanning Multiple Domains in an Optical Network
- Publication number 20130236176
- Publication date Sep 12, 2013
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bandwidth management for MPLS fast rerouting
- Publication number 20130155840
- Publication date Jun 20, 2013
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Standby Restoration Signaling For Optical Networks
- Publication number 20120308224
- Publication date Dec 6, 2012
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bandwidth management for MPLS fast rerouting
- Publication number 20120243407
- Publication date Sep 27, 2012
- AT&T Intellectual Property II, L.P.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reachability Matrices Spanning Multiple Domains in an Optical Network
- Publication number 20120213520
- Publication date Aug 23, 2012
- AT&T INTELLECTUAL PROPERTY I LP
- Robert Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING A ROUTE RECOMMENDATION
- Publication number 20120087665
- Publication date Apr 12, 2012
- GUANGZHI LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK
- Publication number 20110038251
- Publication date Feb 17, 2011
- AT&T Labs
- Guangzhi LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for Restoration and Normalization in a Mesh Network
- Publication number 20100091647
- Publication date Apr 15, 2010
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Standby restoration signaling for optical networks
- Publication number 20100067899
- Publication date Mar 18, 2010
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD OF DISTRIBUTING MEDIA CONTENT
- Publication number 20090252033
- Publication date Oct 8, 2009
- AT&T KNOWLEDGE VENTURES, L.P.
- Kadangode Ramakrishnan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK
- Publication number 20090190478
- Publication date Jul 30, 2009
- AT&T Labs
- Guangzhi LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bandwidth Management for MPLS Fast Rerouting
- Publication number 20080253281
- Publication date Oct 16, 2008
- AT&T Corporation
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR ROUTING PACKET TRAFFIC
- Publication number 20080089335
- Publication date Apr 17, 2008
- AT&T KNOWLEDGE VENTURES, L.P.
- GUANGZHI LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR UNIDIRECTIONAL AND BIDIRECTIONAL LABEL SWITCHED PATH SET...
- Publication number 20080043740
- Publication date Feb 21, 2008
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bandwidth management for MPLS fast rerouting
- Publication number 20060146696
- Publication date Jul 6, 2006
- AT&T Corp.
- Guangzhi Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for selecting a restoration path in a mesh network
- Publication number 20050232144
- Publication date Oct 20, 2005
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR NETWORK LAYER RESTORATION USING SPARE INTERFACES CONNECT...
- Publication number 20040107382
- Publication date Jun 3, 2004
- ATT CORP.
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for selecting a restoration path in a mesh network
- Publication number 20020097671
- Publication date Jul 25, 2002
- AT&T Corp.
- Robert Duncan Doverspike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Guangzhi Li

Person

Patents Grantslast 30 patents

System and method for restoration in a multimedia IP network

Broadcast services platform and methods for use therewith

Broadcast services platform and methods for use therewith

Efficient network utilization using optically switched superchannels

System and method for restoration in a multimedia IP network

Method and apparatus for efficient network utilization using superc...

System and method for restoration in a multimedia IP network

Method and apparatus for providing a route recommendation

Method and apparatus for providing a route recommendation

Reachability matrices spanning multiple domains in an optical network

Method and apparatus for providing a control plane across multiple...

Bandwidth management for MPLS fast rerouting

Metropolitan IP aggregation network design tool

Standby restoration signaling for optical networks

System and method for restoration in a multimedia IP network

Physically-diverse routing in heterogeneous optical networks

Method and apparatus for providing a control plane across multiple...

Reachability matrices spanning multiple domains in an optical network

Bandwidth management for MPLS fast rerouting

Standby restoration signaling for optical networks

Bandwidth management for MPLS fast rerouting

Shared mesh restoration with pre-configured standby lightpaths

Method for restoration and normalization in a mesh network

Method and apparatus for generating a set of aggregates

Two-phase fast reroute with optimized traffic engineering

System and method for restoration in a multimedia IP network

Method for unidirectional and bidirectional label switched path set...

Arrangement for reducing multiplexing and demultiplexing cost in ul...

Method for selecting a restoration path in a mesh network

Method for restoration and normalization in a mesh network

Patents Applicationslast 30 patents

SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK

EFFICIENT NETWORK UTILIZATION USING OPTICALLY SWITCHED SUPERCHANNELS

METHOD AND APPARATUS FOR EFFICIENT NETWORK UTILIZATION USING SUPERC...

System and Method for Restoration in a Multimedia IP Network

BROADCAST SERVICES PLATFORM AND METHODS FOR USE THEREWITH

METHOD AND APPARATUS FOR PROVIDING A ROUTE RECOMMENDATION

METHOD AND APPARATUS FOR PROVIDING A CONTROL PLANE ACROSS MULTIPLE...

Reachability Matrices Spanning Multiple Domains in an Optical Network

Bandwidth management for MPLS fast rerouting

Standby Restoration Signaling For Optical Networks

Bandwidth management for MPLS fast rerouting

Reachability Matrices Spanning Multiple Domains in an Optical Network

METHOD AND APPARATUS FOR PROVIDING A ROUTE RECOMMENDATION

SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK

Method for Restoration and Normalization in a Mesh Network

Standby restoration signaling for optical networks

SYSTEM AND METHOD OF DISTRIBUTING MEDIA CONTENT

SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK

Bandwidth Management for MPLS Fast Rerouting

SYSTEM AND METHOD FOR ROUTING PACKET TRAFFIC

METHOD FOR UNIDIRECTIONAL AND BIDIRECTIONAL LABEL SWITCHED PATH SET...

Bandwidth management for MPLS fast rerouting

Method for selecting a restoration path in a mesh network

METHOD FOR NETWORK LAYER RESTORATION USING SPARE INTERFACES CONNECT...

Method for selecting a restoration path in a mesh network