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G11B20/025
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PHYSICS
G11
Information storage
G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B20/00
Signal processing not specific to the method of recording or reproducing Circuits therefor
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G11B20/025
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Patents Grants
last 30 patents
Information
Patent Grant
Data storage device with notch filter calibration based on multi-ra...
Patent number
11,915,731
Issue date
Feb 27, 2024
Western Digital Technologies, Inc.
Shinsuke Nakagawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Adaptive correction of symmetrical and asymmetrical saturation in m...
Patent number
9,305,591
Issue date
Apr 5, 2016
Quantum Corporation
Marc Feller
G11 - INFORMATION STORAGE
Information
Patent Grant
Variable stopwrite threshold using kurtosis
Patent number
9,042,046
Issue date
May 26, 2015
International Business Machines Corporation
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Grant
Variable stopwrite threshold using kurtosis
Patent number
8,810,939
Issue date
Aug 19, 2014
International Business Machines Corporation
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Grant
Variable stopwrite threshold using kurtosis
Patent number
8,804,257
Issue date
Aug 12, 2014
International Business Machines Corporation
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Grant
Adaptive correction of symmetrical and asymmetrical saturation in m...
Patent number
8,760,789
Issue date
Jun 24, 2014
Quantum Corporation
Marc Feller
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc with wobbled tracks and apparatus using this optical disc
Patent number
7,411,889
Issue date
Aug 12, 2008
Kabushiki Kaisha Toshiba
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc with wobbled tracks and apparatus using this optical disc
Patent number
7,408,871
Issue date
Aug 5, 2008
Kabushiki Kaisha Toshiba
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc with wobbled tracks and apparatus using this optical disc
Patent number
7,400,569
Issue date
Jul 15, 2008
Kabushiki Kaisha Toshiba
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc with wobbled tracks and apparatus using this optical disc
Patent number
7,292,522
Issue date
Nov 6, 2007
Kabushiki Kaisha Toshiba
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for demodulating digital FM signal in an optical disc device
Patent number
6,081,493
Issue date
Jun 27, 2000
Sony Corporation
Yoshiro Joichi
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for demodulating a digital FM signal which normally has s...
Patent number
5,907,528
Issue date
May 25, 1999
Sony Corporation
Yoshiro Joichi
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for demodulating digital FM signal in an optical disc device
Patent number
5,838,649
Issue date
Nov 17, 1998
Sony Corporation
Yoshiro Joichi
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for reducing the pre-echoes or post-echoes affecting audio...
Patent number
5,717,768
Issue date
Feb 10, 1998
France Telecom
Jean Laroche
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording medium and video signal recording/reproducing method usin...
Patent number
5,258,852
Issue date
Nov 2, 1993
Pioneer Electronic Corporation
Yoshihiro Kamijima
G11 - INFORMATION STORAGE
Information
Patent Grant
Reproduction of sound track signals by varying the detector thresho...
Patent number
5,237,559
Issue date
Aug 17, 1993
Dolby Laboratories Licensing Corporation
James B. Murphy
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of evaluating a storage medium by recirculating a test sampl...
Patent number
5,126,990
Issue date
Jun 30, 1992
Discovision Associates
Edward Efron
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
FM demodulator arrangement including hold, delay and switching circ...
Patent number
5,121,073
Issue date
Jun 9, 1992
U.S. Philips Corporation
Josephus A. Pijnenburg
G11 - INFORMATION STORAGE
Information
Patent Grant
Drop-out detection circuit
Patent number
5,117,193
Issue date
May 26, 1992
Teac Corporation
Hirohisa Yamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for directly copying frequency modulated video signals from...
Patent number
5,103,349
Issue date
Apr 7, 1992
BTS Broadcast Television Systems GmbH
Josef Sochor
G11 - INFORMATION STORAGE
Information
Patent Grant
Technique for certifying disk recording surface
Patent number
5,047,874
Issue date
Sep 10, 1991
Unisys Corp.
Ruben Yomtoubian
G11 - INFORMATION STORAGE
Information
Patent Grant
Signal evaluation by accumulation at one rate and releasing and tes...
Patent number
5,001,568
Issue date
Mar 19, 1991
Discovision Associates
Edward Efron
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Dropout detecting circuit with one-half wavelength delay
Patent number
4,977,461
Issue date
Dec 11, 1990
Sony Corporation
Isao Ichimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optic recording/reproducing apparatus
Patent number
4,951,154
Issue date
Aug 21, 1990
NEC Corporation
Toru Sekiguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Circuit for detecting signal loss, or drop-out, in a digital signal...
Patent number
4,864,426
Issue date
Sep 5, 1989
Pioneer Electronic Corporation
Toshio Gotoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording apparatus
Patent number
4,829,388
Issue date
May 9, 1989
Fuji Photo Film Co., Ltd.
Yoshiaki Nakayama
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of time axis control in an information recording system for...
Patent number
4,763,205
Issue date
Aug 9, 1988
Pioneer Electronic Corporation
Takashi Okano
G11 - INFORMATION STORAGE
Information
Patent Grant
Triggering for waveform recording
Patent number
4,755,887
Issue date
Jul 5, 1988
Hewlett-Packard Company
Phillip E. Deaver
G11 - INFORMATION STORAGE
Information
Patent Grant
Audio evaluation of information stored on a record medium under con...
Patent number
4,755,884
Issue date
Jul 5, 1988
Discovision Associates
Edward Efron
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Recording characteristic evaluation of a recording medium with a ti...
Patent number
4,746,991
Issue date
May 24, 1988
Discovision Associates
Edward Efron
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
DATA STORAGE DEVICE WITH NOTCH FILTER CALIBRATION BASED ON MULTI-RA...
Publication number
20240071415
Publication date
Feb 29, 2024
Western Digital Technologies, Inc.
Shinsuke Nakagawa
G11 - INFORMATION STORAGE
Information
Patent Application
MEDIA AND DRIVE VALIDATION IN TAPE LIBRARIES
Publication number
20150117174
Publication date
Apr 30, 2015
Oracle International Corporation
CHAD ALBER
G11 - INFORMATION STORAGE
Information
Patent Application
ADAPTIVE CORRECTION OF SYMMETRICAL AND ASYMMETRICAL SATURATION IN M...
Publication number
20140300986
Publication date
Oct 9, 2014
Quantum Corporation
Marc Feller
G11 - INFORMATION STORAGE
Information
Patent Application
VARIABLE STOPWRITE THRESHOLD USING KURTOSIS
Publication number
20140293470
Publication date
Oct 2, 2014
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Application
VARIABLE STOPWRITE THRESHOLD USING KURTOSIS
Publication number
20140063633
Publication date
Mar 6, 2014
International Business Machines Corporation
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Application
VARIABLE STOPWRITE THRESHOLD USING KURTOSIS
Publication number
20140063635
Publication date
Mar 6, 2014
International Business Machines Corporation
Randy C. Inch
G11 - INFORMATION STORAGE
Information
Patent Application
Adaptive Correction of Symmetrical and Asymmetrical Saturation in M...
Publication number
20130077187
Publication date
Mar 28, 2013
Quantum Corporation
Marc Feller
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISK WITH WOBBLED TRACKS AND APPARATUS USING THIS OPTICAL DISC
Publication number
20070183300
Publication date
Aug 9, 2007
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISK WITH WOBBLED TRACKS AND APPARATUS USING THIS OPTICAL DISC
Publication number
20070159955
Publication date
Jul 12, 2007
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISK WITH WOBBLED TRACKS AND APPARATUS USING THIS OPTICAL DISC
Publication number
20070159956
Publication date
Jul 12, 2007
Yuji Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISK WITH WOBBLED TRACKS AND APPARATUS USING THIS OPTICAL DISC
Publication number
20070153670
Publication date
Jul 5, 2007
Yuji NAGAI
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc with wobbled tracks and apparatus using this optical disc
Publication number
20060133228
Publication date
Jun 22, 2006
Yuji Nagai
G11 - INFORMATION STORAGE