Interleaved servo pattern

Details Interleaved servo pattern Interleaved servo pattern

2007-02-20

2009-02-24

Nguyen, Hoa T (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077120

Reexamination Certificate

active

07495859

ABSTRACT:
In general, the invention is directed to servo techniques that utilize servo patterns to facilitate head positioning relative to the data tracks. For example, the servo techniques may include a first series of servo patterns configured to allow calculation of a position error signal that substantially mitigates error resulting from a variation in velocity of the data storage tape during detection of the at least one of the servo patterns in the first series. The servo techniques may also include a second series of servo patterns interleaved within the first series of servo patterns in order to encode data. The encoded data may include linear position information. Embodiments may allow a data storage tape meeting a currently accepted data storage tape specification, e.g., an LTO Ultrium specification, to record data in a higher density than currently implemented with the specification.

REFERENCES:
patent: 3665118 (1972-05-01), Cooper, Jr.
patent: 3686649 (1972-08-01), Behr
patent: 3869711 (1975-03-01), Bernard et al.
patent: 4007493 (1977-02-01), Behr et al.
patent: 4149198 (1979-04-01), Behr et al.
patent: 4321634 (1982-03-01), Lehureau
patent: 4347534 (1982-08-01), Kimura
patent: 4454549 (1984-06-01), Pennington
patent: 4472750 (1984-09-01), Klumpp et al.
patent: 4498129 (1985-02-01), Velazquez
patent: 4549232 (1985-10-01), Axmear et al.
patent: 4586094 (1986-04-01), Chambors et al.
patent: 4587579 (1986-05-01), Cocke et al.
patent: 4595327 (1986-06-01), Woodley
patent: 4598327 (1986-07-01), Jen et al.
patent: 5003412 (1991-03-01), Bizjak et al.
patent: 5055951 (1991-10-01), Behr
patent: 5119248 (1992-06-01), Bizjak et al.
patent: 5132861 (1992-07-01), Behr et al.
patent: 5210660 (1993-05-01), Hetzler
patent: 5223994 (1993-06-01), Behr et al.
patent: 5293281 (1994-03-01), Behr et al.
patent: 5689384 (1997-11-01), Albrecht et al.
patent: 5923272 (1999-07-01), Albrecht et al.
patent: 5930065 (1999-07-01), Albrecht et al.
patent: 5995315 (1999-11-01), Fasen
patent: 6021013 (2000-02-01), Albrecht et al.
patent: 6111719 (2000-08-01), Fasen
patent: 6154330 (2000-11-01), Nakagawa
patent: 6169640 (2001-01-01), Fasen
patent: 6532128 (2003-03-01), Bui et al.
patent: 6542325 (2003-04-01), Molstad et al.
patent: 6574066 (2003-06-01), Stubbs et al.
patent: 6580581 (2003-06-01), Bui et al.
patent: 6700729 (2004-03-01), Beck et al.
patent: 6781778 (2004-08-01), Molstad et al.
patent: 6842305 (2005-01-01), Molstad et al.
patent: 6879457 (2005-04-01), Eaton et al.
patent: 6943979 (2005-09-01), Goker et al.
patent: 7079343 (2006-07-01), Molstad et al.
patent: 7289289 (2007-10-01), Hoerger et al.
patent: 7333291 (2008-02-01), Fasen
patent: 2004/0105188 (2004-06-01), Dugas
patent: 2008/0174897 (2008-07-01), Bates et al.
patent: 0 690 442 (1996-01-01), None
R. C. Barrett et al., “Timing-Based Track-Following Servo for Linear Tape Systems,”IEEE Transactions on Magnetics, 34:4 1872-1877 (1998).
R. C. Barrett et al., “Timing-Based Track-Following Servo for Magnetic Tape,” p. EC-06 of1996 Digests of INTERMAG '96, IEEE International Magnetics Conference, Apr. 9-12, 1966, Seattle, Washington.
E.G. Gruss et al., “Servo System for Magnetic Recording Based on Time Comparison,”IBMTechnical Disclosure Bulletin, 23:2, 787-789 (1980).

Affiliated with

Also associated with

Rating

Interleaved servo pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4068184