Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of equalizing
Reexamination Certificate
2011-07-19
2011-07-19
Olson, Jason C (Department: 2627)
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of equalizing
C375S232000
Reexamination Certificate
active
07982997
ABSTRACT:
Provided is a method for receiving a DSS sequence and a DSS readback sequence, which is a function of a channel processing of the DSS sequence by a read channel. A coefficient cyclic equalizer vector is generated as a function of the DSS sequence and the DSS readback sequence. An error signal is generated as a function of a comparison of the DSS sequence and an equalization of the DSS readback sequence based on the coefficient cyclic equalizer vector. An unacceptable error signal indicates a need to adjust the coefficient cyclic equalizer vector to yield an acceptable comparison of the DSS sequence and an equalization of the DSS readback sequence based on the coefficient cyclic equalizer vector.
REFERENCES:
patent: 5892632 (1999-04-01), Behrens et al.
patent: 5949820 (1999-09-01), Shih et al.
patent: 6031672 (2000-02-01), Bergquist et al.
patent: 6154017 (2000-11-01), Contreras
patent: 6424686 (2002-07-01), Hutchins et al.
patent: 6546063 (2003-04-01), Lee et al.
patent: 6614841 (2003-09-01), Ohta
patent: 6771699 (2004-08-01), Karaoquz et al.
patent: 6934233 (2005-08-01), Miyashita et al.
patent: 6970311 (2005-11-01), Jaquette
patent: 7102839 (2006-09-01), Berman et al.
patent: 7116736 (2006-10-01), Blaum et al.
patent: 7119974 (2006-10-01), Jaquette
patent: 7256954 (2007-08-01), Serizawa
patent: 7271971 (2007-09-01), Hutchins et al.
patent: 7428116 (2008-09-01), Hutchins et al.
patent: 10106162 (1998-04-01), None
patent: 10208395 (1998-08-01), None
patent: 2005063444 (2005-03-01), None
First Office Action dated Apr. 4, 2008 for U.S. Appl. No. 11/136,872, filed May 25, 2005 for inventor R.A. Hutchins.
Amendment dated Apr. 24, 2008 to First Office Action dated Apr. 4, 2008 for U.S. Appl. No. 11/136,872, filed May 25, 2005 for inventor R.A. Hutchins.
Notice of Allowance dated Jul. 21, 2008 for U.S. Appl. No. 11/136,872, filed May 25, 2005 for inventor R.A. Hutchins.
“Information Materials for IDS”—art cited in JPO Office Action, IBM Corporation, Date of JP Office Action Mar. 8, 2011.
Eleftheriou Evangelos S.
Hutchins Robert A.
Oelcer Sedat
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Olson Jason C
Victor David W.
LandOfFree
Method for an equalizer computation in a media system using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for an equalizer computation in a media system using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for an equalizer computation in a media system using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2686060