Data defect detection using soft decision result

Details Data defect detection using soft decision result Data defect detection using soft decision result

2007-04-12

2009-08-11

Battaglia, Michael V (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S059220, C714S794000

Reexamination Certificate

active

07573794

ABSTRACT:
A defect detection device, apparatus, and method for detecting a defect of data recorded on a recording medium. The defect detection device includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium based on soft decision results obtained in a process of reproducing the data in accordance with a maximum likelihood decoding algorithm corresponding to a partial response. The defect detection device includes a defect determination part determining the defect of the recorded data based on the information generated in the waveform state detection part.

REFERENCES:
patent: 4750058 (1988-06-01), Hirt et al.
patent: 5748593 (1998-05-01), Tanaka et al.
patent: 6185175 (2001-02-01), Zook
patent: 6269124 (2001-07-01), Nagayasu et al.
patent: 6289059 (2001-09-01), Yamaguchi et al.
patent: 6452985 (2002-09-01), Hatakeyama et al.
patent: 6581182 (2003-06-01), Lee
patent: 6625179 (2003-09-01), Doetsch et al.
patent: 6694477 (2004-02-01), Lee
patent: 6708308 (2004-03-01), De Souza et al.
patent: 7257066 (2007-08-01), Fujiwara et al.
patent: 6-325504 (1994-11-01), None
patent: 10-055628 (1998-02-01), None
patent: 10-308066 (1998-11-01), None
patent: 10-312640 (1998-11-01), None
patent: 2000-331429 (2000-11-01), None
Office Action mailed Jul. 19, 2005 issued with respect to Japanese Patent Application No. 2001-165590.

Affiliated with

Also associated with

Rating

Data defect detection using soft decision result does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data defect detection using soft decision result, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data defect detection using soft decision result will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4074621