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Sidhartha Maitra
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Saratoga, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Computer implemented communication apparatus and method
Patent number
7,092,406
Issue date
Aug 15, 2006
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Computer-based multi-media communications system and method
Patent number
7,082,106
Issue date
Jul 25, 2006
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Computer implemented voice over data communication apparatus and me...
Patent number
7,082,141
Issue date
Jul 25, 2006
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Voice over video communication system
Patent number
5,790,532
Issue date
Aug 4, 1998
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method and apparatus for a hands-free speaker phone
Patent number
5,764,627
Issue date
Jun 9, 1998
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Noncompressed voice and data communication over modem for a compute...
Patent number
5,754,589
Issue date
May 19, 1998
Multi-Tech Systems, Inc.
Sidhartha Maitra
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Icon for a display screen
Patent number
D394250
Issue date
May 12, 1998
Multi-Tech Systems, Inc.
Sidhartha Maitra
D14 - Recording, communication, or information retrieval equipment
Information
Patent Grant
Modem resistant to cellular dropouts
Patent number
5,673,268
Issue date
Sep 30, 1997
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Computer-based multifunction personal communication system
Patent number
5,673,257
Issue date
Sep 30, 1997
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Digital simultaneous voice and data modem
Patent number
5,600,649
Issue date
Feb 4, 1997
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Voice compression system and method
Patent number
5,592,586
Issue date
Jan 7, 1997
Multi-Tech Systems, Inc.
Sidhartha Maitra
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method of controlling a personal communication system
Patent number
5,577,041
Issue date
Nov 19, 1996
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Echo cancellation system and method
Patent number
5,559,793
Issue date
Sep 24, 1996
Multi-Tech Systems, Inc.
Sidhartha Maitra
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Dynamic selection of compression rate for a voice compression algor...
Patent number
5,546,395
Issue date
Aug 13, 1996
Multi-Tech Systems, Inc.
Raghu N. Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Computer-based multifunction personal communications system
Patent number
5,471,470
Issue date
Nov 28, 1995
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Computer-based multifunction personal communications system
Patent number
5,452,289
Issue date
Sep 19, 1995
Multi-Tech Systems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Computer implemented voice over data communication apparatus and me...
Publication number
20030223407
Publication date
Dec 4, 2003
Multi-Tech Systems, Inc.
Raghu Sharma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Computer implemented communication apparatus and method
Publication number
20030223461
Publication date
Dec 4, 2003
Multi-Tech Systems, Inc.
Raghu Sharma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Computer-based multi-media communications system and method
Publication number
20020075815
Publication date
Jun 20, 2002
Multi-Tech Syatems, Inc.
Raghu Sharma
G10 - MUSICAL INSTRUMENTS ACOUSTICS