Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1997-07-09
2000-10-10
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 64, 360 7304, 360 76, G11B 509
Patent
active
061307920
ABSTRACT:
To control operations of an arcuate scanning head assembly, servo signals are written in one or more designated servo regions along a recording tape, for example along one or both edges of the recording area on the tape. To minimize the space occupied by the servo signals, the servo signals are always written with an azimuth that is substantially parallel to the longitudinal axis of the tape. In the preferred embodiment, servo signals aligned with adjacent tracks are written at two different positions within a servo region. As a read head passes over a track and the servo region, the head should overlap the servo signal aligned with that track and a portion of the servo signal aligned with the adjacent track. A control system samples the signal from the read head in a first time window corresponding to passage of the head across a burst aligned with the track and in a second time window corresponding to passage of the head across a burst aligned with the adjacent track. The system controls one or more parameters relating to the scanning operation as a function of a relationship of the two sampled amplitudes.
REFERENCES:
patent: 2750449 (1956-06-01), Thompson et al.
patent: 2772328 (1956-11-01), Lyon
patent: 2900444 (1959-08-01), Camras
patent: 2924668 (1960-02-01), Hoshino et al.
patent: 3320371 (1967-05-01), Bach
patent: 3351718 (1967-11-01), Banning, Jr. et al.
patent: 3790755 (1974-02-01), Silverman
patent: 4112472 (1978-09-01), Hauke et al.
patent: 4139871 (1979-02-01), Yoshida et al.
patent: 4525754 (1985-06-01), Handley
patent: 4636886 (1987-01-01), Schwarz
patent: 4647993 (1987-03-01), Schwarz et al.
patent: 4731681 (1988-03-01), Ogata
patent: 5060104 (1991-10-01), Kitaori et al.
patent: 5339207 (1994-08-01), Moon et al.
patent: 5345345 (1994-09-01), Yamashita et al.
patent: 5371638 (1994-12-01), Saliba
patent: 5381277 (1995-01-01), Jaffard et al.
patent: 5396376 (1995-03-01), Chambors et al.
patent: 5412517 (1995-05-01), Fujimori
patent: 5446601 (1995-08-01), Fukuta
patent: 5448430 (1995-09-01), Bailey et al.
patent: 5453887 (1995-09-01), Negishi et al.
patent: 5488525 (1996-01-01), Adams
Lissner, R.W., "Movable Head/Movable Track Accessory Arrangement", IBM Tech Disclosure Bulletin, Mar. 1977.
Seagate Technology Inc.
Sniezek Andrew L.
LandOfFree
Flat servo bursts for arcuate track scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flat servo bursts for arcuate track scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat servo bursts for arcuate track scanner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2261329