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Charles Mao
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Plano, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Reconfigurable service ring and method for operation in optical net...
Patent number
6,970,617
Issue date
Nov 29, 2005
Charles Mao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node including three-stage optical amplifier with automatic...
Patent number
6,621,625
Issue date
Sep 16, 2003
Avanex Corporation
Lintao Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control methods for a metro optical amplifier
Patent number
6,614,587
Issue date
Sep 2, 2003
Avanex Corporation
Jun Yu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fault isolation of an optical link by correlating PMD events with o...
Patent number
6,570,682
Issue date
May 27, 2003
WorldCom, Inc.
Niall Robinson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for channel monitoring in a hybrid distributed...
Patent number
6,441,952
Issue date
Aug 27, 2002
Avanex Corporation
Xiaodong Duan
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Reconfigurable automatic gain control and method for optical amplifier
Patent number
6,417,964
Issue date
Jul 9, 2002
Avamex Corporation
Lintao Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fault isolation of an optical link by correlating PMD events with o...
Patent number
6,404,520
Issue date
Jun 11, 2002
MCI WorldCom, Inc.
Niall Robinson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Reconfigurable service ring and method for operation in optical net...
Publication number
20040131308
Publication date
Jul 8, 2004
Charles Mao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Fault isolation of an optical link by correlating PMD events with o...
Publication number
20020122220
Publication date
Sep 5, 2002
WorldCom, INC.
Niall Robinson
H04 - ELECTRIC COMMUNICATION TECHNIQUE