Trigger pattern detection method and apparatus

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360 31, 369 47, G11B 509

Patent

active

061010553

ABSTRACT:
Improvements in placement of timing patterns in self-servowriting include detecting and correcting for media defects. A detector is used to detect whether a trigger pattern is within an expected location on the storage medium. If the trigger pattern is not detected, then a physical defect may be present. Thus, in one example, a false trigger pattern is generated. Additionally, a determination is made as to whether a trigger pattern is within an expected trigger pattern region. When the trigger pattern is not within the expected range, then a valid interval window may be modified to adjust the expected trigger pattern region.

REFERENCES:
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4603411 (1986-07-01), Sugiyama et al.
patent: 4620300 (1986-10-01), Ogawa
patent: 4663752 (1987-05-01), Kakuse et al.
patent: 4879608 (1989-11-01), Sano
patent: 4912576 (1990-03-01), Janz
patent: 5050013 (1991-09-01), Holsinger
patent: 5229901 (1993-07-01), Mallary
patent: 5416652 (1995-05-01), Lewis
patent: 5444685 (1995-08-01), Masood et al.
patent: 5485322 (1996-01-01), Chainer et al.
patent: 5523990 (1996-06-01), Chiba
patent: 5581420 (1996-12-01), Chainer et al.
patent: 5612833 (1997-03-01), Yarmchuk et al.
patent: 5615058 (1997-03-01), Chainer et al.
"Regenerative Clock Technique For Servo Track Writers," IBM Technical Disclosure Bulletin, vol. 33 No. 5, pp. 310-311 (Oct. 1990).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Trigger pattern detection method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trigger pattern detection method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trigger pattern detection method and apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1156100

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.