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William C. Yip
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Scottsdale, AZ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Automatic gain control for an adaptive finite impulse response and...
Patent number
7,142,665
Issue date
Nov 28, 2006
FREESCALE SEMICONDUCTOR, INC.
David L. Barron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Controlling attenuation during echo suppression
Patent number
7,065,207
Issue date
Jun 20, 2006
FREESCALE SEMICONDUCTOR, INC.
David L. Barron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speech recognition using polynomial expansion and hidden markov models
Patent number
6,928,409
Issue date
Aug 9, 2005
FREESCALE SEMICONDUCTOR, INC.
David L. Barron
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Full-duplex hands-free transparency circuit and method therefor
Patent number
6,799,062
Issue date
Sep 28, 2004
Motorola Inc.
James B. Piket
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for setting a step size for an adaptive filter...
Patent number
6,707,912
Issue date
Mar 16, 2004
Motorola, Inc.
James Allen Stephens
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Voice decoder and method for detecting channel errors using spectra...
Patent number
6,658,112
Issue date
Dec 2, 2003
General Dynamics Decision Systems, Inc.
David L. Barron
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Echo canceler and double-talk detector for use in a communications...
Patent number
6,415,029
Issue date
Jul 2, 2002
Motorola, Inc.
James Brian Piket
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for data transmission using a lossy compression s...
Patent number
6,327,303
Issue date
Dec 4, 2001
Motorola, Inc.
Craig Robert Balogh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Simultaneous transfer of voice and data information using multi-rat...
Patent number
6,104,726
Issue date
Aug 15, 2000
Motorola, Inc.
William Chunhung Yip
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telecommunication device and method of authenticating a user...
Patent number
6,084,967
Issue date
Jul 4, 2000
Motorola, Inc.
Paul Roy Kennedy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for programming a cellular phone
Patent number
5,926,756
Issue date
Jul 20, 1999
Motorola, Inc.
Gerald Vincent Piosenka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modem training apparatus and method
Patent number
5,903,603
Issue date
May 11, 1999
Motorola, Inc.
Paul Roy Kennedy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-channel echo canceler and method using convolution of two tra...
Patent number
5,896,452
Issue date
Apr 20, 1999
Motorola, Inc.
William Chunhung Yip
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-channel echo cancellation method and apparatus
Patent number
5,856,970
Issue date
Jan 5, 1999
Motorola, Inc.
Donald Fong Gee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Balance differential receiver
Patent number
5,815,020
Issue date
Sep 29, 1998
Motorola, Inc.
Steven Peter Allen
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Balanced differential radio receiver and method of operation
Patent number
5,812,942
Issue date
Sep 22, 1998
Motorola, Inc.
Steven Pater Allen
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Simultaneous transfer of voice and data information using multi-rat...
Patent number
5,751,718
Issue date
May 12, 1998
Motorola, Inc.
William Chunhung Yip
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Partitioned echo canceler utilizing decimation echo location
Patent number
5,721,782
Issue date
Feb 24, 1998
Motorola, Inc.
James Brian Piket
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system apparatus for transmitting and receiving data...
Patent number
5,504,802
Issue date
Apr 2, 1996
Motorola, Inc.
Paul R. Kennedy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for volume switched gain control
Patent number
5,357,567
Issue date
Oct 18, 1994
Motorola, Inc.
David L. Barron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CELP vocoder with efficient adaptive codebook search
Patent number
5,265,190
Issue date
Nov 23, 1993
Motorola, Inc.
William C. Yip
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Efficient codebook search for CELP vocoders
Patent number
5,187,745
Issue date
Feb 16, 1993
Motorola, Inc.
William C. Yip
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Efficient calculation of autocorrelation coefficients for CELP voco...
Patent number
5,179,594
Issue date
Jan 12, 1993
Motorola, Inc.
William C. Yip
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Reduced codebook search arrangement for CELP vocoders
Patent number
5,173,941
Issue date
Dec 22, 1992
Motorola, Inc.
William C. Yip
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Automatic gain control for an adaptive finite impulse response and...
Publication number
20060013383
Publication date
Jan 19, 2006
David L. Barron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Controlling attenuation during echo suppression
Publication number
20050058277
Publication date
Mar 17, 2005
David L. Barron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speech recognition using polynomial expansion and hidden markov models
Publication number
20020184025
Publication date
Dec 5, 2002
MOTOROLA, INC.
David L. Barron
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
METHOD AND APPARATUS FOR SETTING A STEP SIZE FOR AN ADAPTIVE FILTER...
Publication number
20020090079
Publication date
Jul 11, 2002
JAMES ALLEN STEPHENS
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ECHO CANCELER AND DOUBLE-TALK DETECTOR FOR USE IN A COMMUNICATIONS...
Publication number
20020057791
Publication date
May 16, 2002
JAMES BRIAN PIKET
H04 - ELECTRIC COMMUNICATION TECHNIQUE