PR4, PR(1,0,-1)

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CPC
G11B20/10175

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B20/00Signal processing not specific to the method of recording or reproducing Circuits therefor

Current Industry

G11B20/10175PR4, PR(1,0,-1)

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Viterbi decoder method and apparatus with RI detector in servo channel
- Patent number 9,037,955
- Issue date May 19, 2015
- Marvell International Ltd.
- Zaihe Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Rendering data write errors detectable
- Patent number 8,996,967
- Issue date Mar 31, 2015
- STMicroelectronics, Inc.
- Mustafa N. Kaynak
- G11 - INFORMATION STORAGE
Information Patent Grant
Gain control with multiple integrators
- Patent number 8,872,573
- Issue date Oct 28, 2014
- International Business Machines Corporation
- Jacob Lee Dahle
- G11 - INFORMATION STORAGE
Information Patent Grant
Detecting data-write errors
- Patent number 8,745,466
- Issue date Jun 3, 2014
- STMicroelectronics, Inc.
- Mustafa N. Kaynak
- G11 - INFORMATION STORAGE
Information Patent Grant
Viterbi decoder method and apparatus with RI detector in servo channel
- Patent number 8,707,147
- Issue date Apr 22, 2014
- Marvell International Ltd.
- Zaihe Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Data-dependent noise-predictive maximum likelihood detection (DD-NP...
- Patent number 8,670,199
- Issue date Mar 11, 2014
- International Business Machines Corporation
- Katherine T. Blinick
- G11 - INFORMATION STORAGE
Information Patent Grant
Coefficient control for filter in magnetic media read channel
- Patent number 8,615,539
- Issue date Dec 24, 2013
- Tandberg Storage ASA
- Steffen Skaug
- G11 - INFORMATION STORAGE
Information Patent Grant
Averaging signals to improve signal interpretation
- Patent number 8,589,774
- Issue date Nov 19, 2013
- Marvell International Ltd.
- Hongxin Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive comprising a dual read element and delay circuitry to im...
- Patent number 8,514,506
- Issue date Aug 20, 2013
- Western Digital (Fremont), LLC
- Shaoping Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Asymmetry correction in read signal
- Patent number 8,477,447
- Issue date Jul 2, 2013
- Marvell International Ltd.
- Ke Han
- G11 - INFORMATION STORAGE
Information Patent Grant
Viterbi decoder method and apparatus with RI detector in servo channel
- Patent number 8,473,830
- Issue date Jun 25, 2013
- Marvell International Ltd.
- Zaihe Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Dynamic phase detector switching
- Patent number 8,437,234
- Issue date May 7, 2013
- Hewlett-Packard Development Company, L.P.
- Rafel Jibry
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method to read information from an information storag...
- Patent number 8,423,692
- Issue date Apr 16, 2013
- International Business Machines Corporation
- James J. Howarth
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit and method for detecting the phase of a servo signal
- Patent number 8,379,340
- Issue date Feb 19, 2013
- STMicroelectronics, Inc.
- Hakan Ozdemir
- G11 - INFORMATION STORAGE
Information Patent Grant
Coefficient memory for least mean square finite impulse response fi...
- Patent number 8,380,774
- Issue date Feb 19, 2013
- Tandberg Storage ASA
- Steffen Skaug
- G11 - INFORMATION STORAGE
Information Patent Grant
Averaging signals to improve signal interpretation
- Patent number 8,359,527
- Issue date Jan 22, 2013
- Marvell International Ltd.
- Hongxin Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Asymmetry correction in read signal
- Patent number 8,331,054
- Issue date Dec 11, 2012
- Marvell International Ltd.
- Ke Han
- G11 - INFORMATION STORAGE
Information Patent Grant
Viterbi decoder method and apparatus with RI detector in servo channel
- Patent number 8,261,172
- Issue date Sep 4, 2012
- Marvell International Ltd.
- Zaihe Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Averaging signals to improve signal interpretation
- Patent number 8,161,361
- Issue date Apr 17, 2012
- Marvell International Ltd.
- Hongxin Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive comprising a dual read element and delay circuitry to im...
- Patent number 8,139,301
- Issue date Mar 20, 2012
- Western Digital (Fremont), LLC
- Shaoping Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Gain control with multiple integrators
- Patent number 8,130,021
- Issue date Mar 6, 2012
- International Business Machines Corporation
- Jacob Lee Dahle
- G11 - INFORMATION STORAGE
Information Patent Grant
Asymmetry correction in read signal
- Patent number 8,120,870
- Issue date Feb 21, 2012
- Marvell International Ltd.
- Ke Han
- G11 - INFORMATION STORAGE
Information Patent Grant
Asymmetry correction in read signal
- Patent number 8,094,400
- Issue date Jan 10, 2012
- Marvell International Ltd.
- Ke Han
- G11 - INFORMATION STORAGE
Information Patent Grant
System, method, and computer program product for characterizing med...
- Patent number 8,094,397
- Issue date Jan 10, 2012
- International Business Machines Corporation
- Evangelos S. Eleftheriou
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method to read information from an information storag...
- Patent number 8,095,712
- Issue date Jan 10, 2012
- International Business Machines Corporation
- James J. Howarth
- G11 - INFORMATION STORAGE
Information Patent Grant
Viterbi decoder method and apparatus with RI detector in servo chan...
- Patent number 8,051,365
- Issue date Nov 1, 2011
- Marvell International Ltd.
- Zaihe Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method to read information from an information storag...
- Patent number 7,953,911
- Issue date May 31, 2011
- International Business Machines Corporation
- James J. Howarth
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive adapting equalizer relative to bit error rate of sequenc...
- Patent number 7,944,639
- Issue date May 17, 2011
- Western Digital Technologies, Inc.
- Alvin J. Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Asymmetry correction in read signal
- Patent number 7,885,031
- Issue date Feb 8, 2011
- Marvell International Ltd.
- Ke Han
- G11 - INFORMATION STORAGE
Information Patent Grant
Windowed level detector for partial response channels
- Patent number 7,852,965
- Issue date Dec 14, 2010
- Quantum Corporation
- Marc Feller
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Method to Read Information from an Information Storag...
- Publication number 20120144228
- Publication date Jun 7, 2012
- International Business Machines Corporation
- JAMES J. HOWARTH
- G11 - INFORMATION STORAGE
Information Patent Application
GAIN CONTROL WITH MULTIPLE INTEGRATORS
- Publication number 20120126876
- Publication date May 24, 2012
- International Business Machines Corporation
- Jacob Lee Dahle
- G11 - INFORMATION STORAGE
Information Patent Application
DETECTING DATA-WRITE ERRORS
- Publication number 20120036395
- Publication date Feb 9, 2012
- STMicroelectronics, Inc.
- Mustafa N. KAYNAK
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RENDERING DATA WRITE ERRORS DETECTABLE
- Publication number 20120036414
- Publication date Feb 9, 2012
- STMicroelectronics, Inc.
- Mustafa N. KAYNAK
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DATA-DEPENDENT NOISE-PREDICTIVE MAXIMUM LIKELIHOOD DETECTION (DD-NP...
- Publication number 20110242692
- Publication date Oct 6, 2011
- International Business Machines Corporation
- Katherine T. Blinick
- G11 - INFORMATION STORAGE
Information Patent Application
MULTI-MODE LOOP ADAPTATION SCHEME FOR HIGH-DENSITY DATA RECORDING C...
- Publication number 20110032630
- Publication date Feb 10, 2011
- Quantum Corporation
- Jaewook Lee
- G11 - INFORMATION STORAGE
Information Patent Application
CIRCUIT AND METHOD FOR DETECTING THE PHASE OF A SERVO SIGNAL
- Publication number 20110002061
- Publication date Jan 6, 2011
- STMicroelectronics, Inc.
- Hakan Ozdemir
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
APPARATUS AND METHOD TO READ INFORMATION FROM AN INFORMATION STORAG...
- Publication number 20100318867
- Publication date Dec 16, 2010
- International Business Machines Corporation
- JAMES J. HOWARTH
- G11 - INFORMATION STORAGE
Information Patent Application
APPARATUS AND METHOD TO READ INFORMATION FROM AN INFORMATION STORAG...
- Publication number 20100318868
- Publication date Dec 16, 2010
- International Business Machines Corporation
- JAMES J. HOWARTH
- G11 - INFORMATION STORAGE
Information Patent Application
GAIN CONTROL WITH MULTIPLE INTEGRATORS
- Publication number 20100176865
- Publication date Jul 15, 2010
- Jacob Lee Dahle
- G11 - INFORMATION STORAGE
Information Patent Application
System, method, and computer program product for characterizing med...
- Publication number 20100172047
- Publication date Jul 8, 2010
- Evangelos S. Eleftheriou
- G11 - INFORMATION STORAGE
Information Patent Application
Windowed Level Detector for Partial Response Channels
- Publication number 20090034646
- Publication date Feb 5, 2009
- Quantum Corporation, a Delaware corporation
- Marc Feller
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
COEFFICIENT CONTROL FOR FILTER IN MAGNETIC MEDIA READ CHANNEL
- Publication number 20090019101
- Publication date Jan 15, 2009
- Steffen Skaug
- G11 - INFORMATION STORAGE
Information Patent Application
COEFFICIENT MEMORY FOR LEAST MEAN SQUARE FINITE IMPULSE RESPONSE FI...
- Publication number 20090019102
- Publication date Jan 15, 2009
- Steffen Skaug
- G11 - INFORMATION STORAGE
Information Patent Application
Servo field preamble detector and methods for use therewith
- Publication number 20070285817
- Publication date Dec 13, 2007
- Broadcom Corporation, a California Corporation
- King Wai Thomas Lau
- G11 - INFORMATION STORAGE
Information Patent Application
Techniques for reducing error propagation using modulation codes ha...
- Publication number 20070157067
- Publication date Jul 5, 2007
- Hitachi Global Technologies Netherlands, B.V.
- Mario Blaum
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Asynchronous read channel shaped toward generalized partial respons...
- Publication number 20070115574
- Publication date May 24, 2007
- Evangelos S. Eleftheriou
- G11 - INFORMATION STORAGE
Information Patent Application
Apparatus, system, and method for adaptive asynchronous equalizatio...
- Publication number 20070098061
- Publication date May 3, 2007
- Evangelos S. Eleftheriou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dibit extraction
- Publication number 20070047120
- Publication date Mar 1, 2007
- Ronald Dane DeGroat
- G11 - INFORMATION STORAGE
Information Patent Application
PRML based magnetic servo position demodulator
- Publication number 20070019316
- Publication date Jan 25, 2007
- David E. Norton
- G11 - INFORMATION STORAGE
Information Patent Application
Phase locking apparatus, phase locking method, data reproducing app...
- Publication number 20060256462
- Publication date Nov 16, 2006
- Toshiyuki Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Coding device and decoding device
- Publication number 20060220931
- Publication date Oct 5, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Terumi Takashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Optical disk apparatus
- Publication number 20050254389
- Publication date Nov 17, 2005
- Hiroyuki Minemura
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic reproducing apparatus and magnetic reproducing method
- Publication number 20040042106
- Publication date Mar 4, 2004
- Yasutaka Kotani
- G11 - INFORMATION STORAGE
Information Patent Application
Phase tolerant servo gray code detector
- Publication number 20030055572
- Publication date Mar 20, 2003
- Ryohei Kuki
- G11 - INFORMATION STORAGE
Information Patent Application
Circuit and method for detecting the phase of a servo signal
- Publication number 20030030929
- Publication date Feb 13, 2003
- STMicroelectronics, Inc.
- Hakan Ozdemir
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for word synchronization with large coding dis...
- Publication number 20020176523
- Publication date Nov 28, 2002
- International Business Machines Corporation
- Roy Daron Cideciyan
- G11 - INFORMATION STORAGE
Information Patent Application
Data detecting apparatus and method thereof
- Publication number 20010040749
- Publication date Nov 15, 2001
- Haruo Ohta
- G11 - INFORMATION STORAGE

PR4, PR(1,0,-1)

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Viterbi decoder method and apparatus with RI detector in servo channel

Rendering data write errors detectable

Gain control with multiple integrators

Detecting data-write errors

Viterbi decoder method and apparatus with RI detector in servo channel

Data-dependent noise-predictive maximum likelihood detection (DD-NP...

Coefficient control for filter in magnetic media read channel

Averaging signals to improve signal interpretation

Disk drive comprising a dual read element and delay circuitry to im...

Asymmetry correction in read signal

Viterbi decoder method and apparatus with RI detector in servo channel

Dynamic phase detector switching

Apparatus and method to read information from an information storag...

Circuit and method for detecting the phase of a servo signal

Coefficient memory for least mean square finite impulse response fi...

Averaging signals to improve signal interpretation

Asymmetry correction in read signal

Viterbi decoder method and apparatus with RI detector in servo channel

Averaging signals to improve signal interpretation

Disk drive comprising a dual read element and delay circuitry to im...

Gain control with multiple integrators

Asymmetry correction in read signal

Asymmetry correction in read signal

System, method, and computer program product for characterizing med...

Apparatus and method to read information from an information storag...

Viterbi decoder method and apparatus with RI detector in servo chan...

Apparatus and method to read information from an information storag...

Disk drive adapting equalizer relative to bit error rate of sequenc...

Asymmetry correction in read signal

Windowed level detector for partial response channels

Patents Applicationslast 30 patents

Apparatus and Method to Read Information from an Information Storag...

GAIN CONTROL WITH MULTIPLE INTEGRATORS

DETECTING DATA-WRITE ERRORS

RENDERING DATA WRITE ERRORS DETECTABLE

DATA-DEPENDENT NOISE-PREDICTIVE MAXIMUM LIKELIHOOD DETECTION (DD-NP...

MULTI-MODE LOOP ADAPTATION SCHEME FOR HIGH-DENSITY DATA RECORDING C...

CIRCUIT AND METHOD FOR DETECTING THE PHASE OF A SERVO SIGNAL

APPARATUS AND METHOD TO READ INFORMATION FROM AN INFORMATION STORAG...

APPARATUS AND METHOD TO READ INFORMATION FROM AN INFORMATION STORAG...

GAIN CONTROL WITH MULTIPLE INTEGRATORS

System, method, and computer program product for characterizing med...

Windowed Level Detector for Partial Response Channels

COEFFICIENT CONTROL FOR FILTER IN MAGNETIC MEDIA READ CHANNEL

COEFFICIENT MEMORY FOR LEAST MEAN SQUARE FINITE IMPULSE RESPONSE FI...

Servo field preamble detector and methods for use therewith

Techniques for reducing error propagation using modulation codes ha...

Asynchronous read channel shaped toward generalized partial respons...

Apparatus, system, and method for adaptive asynchronous equalizatio...

Dibit extraction

PRML based magnetic servo position demodulator

Phase locking apparatus, phase locking method, data reproducing app...

Coding device and decoding device

Optical disk apparatus

Magnetic reproducing apparatus and magnetic reproducing method

Phase tolerant servo gray code detector

Circuit and method for detecting the phase of a servo signal

Method and apparatus for word synchronization with large coding dis...

Data detecting apparatus and method thereof