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Zachary Keirn
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Loveland, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and system for radial and tangential tilt calibration of opt...
Patent number
8,995,242
Issue date
Mar 31, 2015
Marvell International Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Limit equalizer output based timing loop
Patent number
8,957,793
Issue date
Feb 17, 2015
Marvell International Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for zero offset and gain start
Patent number
8,830,808
Issue date
Sep 9, 2014
Marvell International Ltd.
Bin Ni
G11 - INFORMATION STORAGE
Information
Patent Grant
Collimator for optical pick-up units
Patent number
8,755,260
Issue date
Jun 17, 2014
Marvell World Trade Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for radial and tangential tilt calibration of opt...
Patent number
8,553,510
Issue date
Oct 8, 2013
Marvell International Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for calibrating optical recording system
Patent number
8,385,165
Issue date
Feb 26, 2013
Marvell International Ltd.
Jingfeng Liu
Information
Patent Grant
Limit equalizer output based timing loop
Patent number
8,274,413
Issue date
Sep 25, 2012
Marvell International Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for radial and tangential tilt calibration of opt...
Patent number
8,243,569
Issue date
Aug 14, 2012
Marvell International Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for calibrating optical recording system
Patent number
8,107,328
Issue date
Jan 31, 2012
Marvell International Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for evaluating performance of a read channel
Patent number
8,046,669
Issue date
Oct 25, 2011
Agere Systems Inc.
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System and method of decoupling asymmetry from baseline compensation
Patent number
7,969,848
Issue date
Jun 28, 2011
Marvell International Ltd.
Jin Xie
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for recording
Patent number
7,965,597
Issue date
Jun 21, 2011
Marvell International, Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Timing loop based on analog to digital converter output and method...
Patent number
7,961,124
Issue date
Jun 14, 2011
Marvell International Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for evaluating performance of a read channel
Patent number
7,941,732
Issue date
May 10, 2011
Agere Systems Inc.
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system for radial and tangential tilt calibration of opt...
Patent number
7,933,181
Issue date
Apr 26, 2011
Marvell International Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Limit equalizer output based timing loop
Patent number
7,825,836
Issue date
Nov 2, 2010
Marvell International, Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus to correct wobble phase slip in optical recorders
Patent number
7,817,512
Issue date
Oct 19, 2010
Marvell International, Ltd.
Mats Oberg
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for evaluating performance of a read channel
Patent number
7,730,384
Issue date
Jun 1, 2010
Agere Systems Inc.
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for encoding and decoding data using a pseudo-...
Patent number
7,526,707
Issue date
Apr 28, 2009
Agere Systems Inc.
Peter Stroud
G11 - INFORMATION STORAGE
Information
Patent Grant
Timing loop based on analog to digital converter output and method...
Patent number
7,525,460
Issue date
Apr 28, 2009
Marvell International Ltd.
Jingfeng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Reduced recovery time for perpendicular recording systems
Patent number
7,119,977
Issue date
Oct 10, 2006
Agere Systems Inc.
Daniel J. Dolan, Jr.
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for programmable codeword encoding and decodin...
Patent number
7,102,549
Issue date
Sep 5, 2006
Agere Systems Inc.
Zachary Keirn
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Channel quality monitor (CQM) for digital peak detection (DPD)
Patent number
6,501,607
Issue date
Dec 31, 2002
Texas Instruments Incorporated
Zachary A. Keirn
G11 - INFORMATION STORAGE
Information
Patent Grant
Read channel for increasing density in removable disk storage devices
Patent number
6,236,692
Issue date
May 22, 2001
Texas Instruments Incorporated
Zachary A. Keirn
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
COLLIMATOR FOR OPTICAL PICK-UP UNITS
Publication number
20130021890
Publication date
Jan 24, 2013
Mats OBERG
G11 - INFORMATION STORAGE
Information
Patent Application
Method and Apparatus for Evaluating Performance of a Read Channel
Publication number
20110119566
Publication date
May 19, 2011
Agere Systems Inc.
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and Apparatus for Evaluating Performance of a Read Channel
Publication number
20100185924
Publication date
Jul 22, 2010
Agere Systems Inc.
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and apparatus for evaluating performance of a read channel
Publication number
20060195772
Publication date
Aug 31, 2006
Nils Graef
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and apparatus for encoding and decoding data using a pseudo-...
Publication number
20060174184
Publication date
Aug 3, 2006
Agere Systems Inc.
Peter Stroud
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Reduced recovery time for perpendicular recording systems
Publication number
20050232018
Publication date
Oct 20, 2005
Agere Systems Inc.
Daniel J. Dolan
G11 - INFORMATION STORAGE
Information
Patent Application
Channel quality monitor (CQM) for digital peak detection (DPD)
Publication number
20020089770
Publication date
Jul 11, 2002
Zachary A. Keirn
G11 - INFORMATION STORAGE