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Frank A. Hagen
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Palos Verdes Estates, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multi-platform wireless communication system for a variety of diffe...
Patent number
8,223,733
Issue date
Jul 17, 2012
The DIRECTV Group, Inc.
Kar W. Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stratospheric-based communication system for mobile users using add...
Patent number
7,890,052
Issue date
Feb 15, 2011
The DIRECTV Group, Inc.
Donald C Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stratospheric-based communication system for mobile users using add...
Patent number
7,317,916
Issue date
Jan 8, 2008
The DIRECTV Group, Inc.
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Resource allocation method for multi-platform communication system
Patent number
7,215,954
Issue date
May 8, 2007
The DIRECTV Group, Inc.
Kar W. Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-node wireless communication system with multiple transponding...
Patent number
7,089,000
Issue date
Aug 8, 2006
The DIRECTV Group, Inc.
Ming U. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent phase synchronous code division multiple access communicat...
Patent number
7,046,718
Issue date
May 16, 2006
The DIRECTV Group, Inc.
Kar Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-node point-to-point satellite communication system employing...
Patent number
6,990,314
Issue date
Jan 24, 2006
The DIRECTV Group, Inc.
Frank A. Hagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent synchronization of code division multiple access signals
Patent number
6,963,548
Issue date
Nov 8, 2005
The DIRECTV Group, Inc.
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
User positioning technique for multi-platform communication system
Patent number
6,920,309
Issue date
Jul 19, 2005
The DIRECTV Group, Inc.
Kar Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Micro cell architecture for mobile user tracking communication system
Patent number
6,914,557
Issue date
Jul 5, 2005
The DIRECTV Group, Inc.
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-platform wireless communication system for a variety of diffe...
Patent number
6,909,875
Issue date
Jun 21, 2005
The DIRECTV Group, Inc.
Kar W. Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Integrating coverage areas of multiple transponder platforms
Patent number
6,868,269
Issue date
Mar 15, 2005
The DIRECTV Group, Inc.
Frank A. Hagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Position location of multiple transponding platforms and users usin...
Patent number
6,785,553
Issue date
Aug 31, 2004
The DIRECTV Group, Inc.
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavefront-projection beamformer
Patent number
6,762,718
Issue date
Jul 13, 2004
The DirectTV Group, Inc.
Donald C. D. Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Resource assignment system and method for determining the same
Patent number
6,763,242
Issue date
Jul 13, 2004
The DIRECTV Group, Inc.
Ying Feria
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Synchronization method and apparatus for multi-platform communicati...
Patent number
6,757,546
Issue date
Jun 29, 2004
The DIRECTV Group, Inc.
Frank A. Hagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stratospheric platforms based mobile communications architecture
Patent number
6,756,937
Issue date
Jun 29, 2004
The DIRECTV Group, Inc.
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ground-based, wavefront-projection beamformer for a stratospheric c...
Patent number
6,507,314
Issue date
Jan 14, 2003
Hughes Electronics Corporation
Donald C. D. Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Micro cell architecture for mobile user tracking communication system
Patent number
6,388,615
Issue date
May 14, 2002
Hughes Electronics Corporation
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ground-based, wavefront-projection beamformer for a stratospheric c...
Patent number
6,380,893
Issue date
Apr 30, 2002
Hughes Electronics Corporation
Donald C. D. Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multiple satellite mobile communications method and apparatus for h...
Patent number
6,337,980
Issue date
Jan 8, 2002
Hughes Electronics Corporation
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiple satellite mobile communications method and apparatus for h...
Patent number
6,295,440
Issue date
Sep 25, 2001
Hughes Electronics Corporation
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Passive microwave near-field tomographic imaging system and method
Patent number
5,142,291
Issue date
Aug 25, 1992
Hughes Aircraft Company
Donald C. D. Chang
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
STRATOSPHERIC-BASED COMMUNICATION SYSTEM FOR MOBILE USERS USING ADD...
Publication number
20080233884
Publication date
Sep 25, 2008
Donald C. D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-platform wireless communication system for a variety of diffe...
Publication number
20050153655
Publication date
Jul 14, 2005
Hughes Electronics Corporation
Kar W. Yung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Position location of multiple transponding platforms and users usin...
Publication number
20030208317
Publication date
Nov 6, 2003
Hughes Electronics Corporation
Donald C.D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavefront-projection beamformer
Publication number
20030076258
Publication date
Apr 24, 2003
Hughes Electronics Corporation
Donald C.D. Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ground-based, wavefront-projection beamformer for a stratospheric c...
Publication number
20020140602
Publication date
Oct 3, 2002
Hughes Electronics Corporation
Donald C.D. Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Micro cell architecture for mobile user tracking communication system
Publication number
20020126042
Publication date
Sep 12, 2002
Hughes Electronics Corporation
Donald C.D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multiple satellite mobile communications method and apparatus for h...
Publication number
20010000167
Publication date
Apr 5, 2001
Hughes Electronics Corporation
Donald C.D. Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE