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Austin, TX, US
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last 30 patents
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Patent Grant
Signal processing system for performing real-time pitch shifting an...
Patent number
5,644,677
Issue date
Jul 1, 1997
Motorola, Inc.
Sangil Park
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Speech processing system and method for enhancing a speech signal i...
Patent number
5,590,241
Issue date
Dec 31, 1996
Motorola Inc.
Sangil Park
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method and apparatus for estimating echo cancellation time
Patent number
5,502,717
Issue date
Mar 26, 1996
Motorola Inc.
Sangil Park
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit die having improved substrate noise isolation
Patent number
5,475,255
Issue date
Dec 12, 1995
Motorola Inc.
Kuntal Joardar
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Parallel infinite impulse response (IIR) filter with low quantizati...
Patent number
5,432,723
Issue date
Jul 11, 1995
Motorola, Inc.
Wei Chen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for noise reduction for a full-duplex speakerp...
Patent number
5,410,595
Issue date
Apr 25, 1995
Motorola, Inc.
Sangil Park
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
DTMF detection having sample rate decimation and adaptive tone dete...
Patent number
5,392,348
Issue date
Feb 21, 1995
Motorola, Inc.
Sangil Park
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiver with digital tuning and method therefor
Patent number
5,387,913
Issue date
Feb 7, 1995
Motorola, Inc.
Sangil Park
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Echo cancellation in a full-duplex speakerphone
Patent number
5,323,458
Issue date
Jun 21, 1994
Motorola Inc.
Sangil Park
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for asynchronous timing recovery using interpo...
Patent number
5,309,484
Issue date
May 3, 1994
Motorola, Inc.
Peter J. McLane
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Symmetrically balanced phase and amplitude base band processor for...
Patent number
5,291,525
Issue date
Mar 1, 1994
Motorola, Inc.
Dion M. Funderburk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit and method for phase error correction in a digital receiver
Patent number
5,249,204
Issue date
Sep 28, 1993
Motorola, Inc.
Dion M. Funderburk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency translating coherent analog to digital conversion system...
Patent number
5,113,189
Issue date
May 12, 1992
Motorola, Inc.
Dion D. Messer
H03 - BASIC ELECTRONIC CIRCUITRY