Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2011-03-01
2011-03-01
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07898763
ABSTRACT:
A sequential data storage medium, such as for example and without limitation a magnetic tape, comprising a plurality of servo patterns encoded in a non-data region, wherein each of said servo patterns comprises a first subframe comprising 10 pulses, a second subframe comprising 8 pulses, and a third subframe comprising (N) pulses, wherein (N) is greater than or equal to 0. The first subframe and the second subframe do not encode any linear position (“LPOS”) data. The third subframe encodes up to (N) LPOS bits.
REFERENCES:
patent: 4337398 (1982-06-01), Ohnishi et al.
patent: 5432652 (1995-07-01), Comeaux et al.
patent: 6141638 (2000-10-01), Peng et al.
patent: 6169640 (2001-01-01), Fasen
patent: 6320719 (2001-11-01), Albrecht et al.
patent: 6470313 (2002-10-01), Ojala
patent: 6493959 (2002-12-01), deLassus
patent: 6522490 (2003-02-01), Cates et al.
patent: 6556966 (2003-04-01), Gao
patent: 6739067 (2004-05-01), Muller
patent: 6937413 (2005-08-01), Bui et al.
patent: 6989950 (2006-01-01), Ohtsu
patent: 7095583 (2006-08-01), Johnson et al.
patent: 7126109 (2006-10-01), Goldman et al.
patent: 7170702 (2007-01-01), Ohtsu
patent: 7355805 (2008-04-01), Nakao et al.
patent: 7363218 (2008-04-01), Jabri et al.
patent: 7363219 (2008-04-01), Stachurski
patent: 7477474 (2009-01-01), Goker et al.
patent: 7605995 (2009-10-01), Ohtsu
patent: 7684143 (2010-03-01), Jaquette
patent: 2004/0093368 (2004-05-01), Lee et al.
patent: 2005/0219734 (2005-10-01), Rothermel et al.
patent: 2005/0231845 (2005-10-01), Shirouzu
patent: 2005/0286159 (2005-12-01), Bui et al.
patent: 2005/0286160 (2005-12-01), Bui et al.
patent: 2006/0291090 (2006-12-01), Dugas et al.
patent: 2009/0161249 (2009-06-01), Takayama et al.
patent: 2009/0303635 (2009-12-01), Kabelac
patent: 2010/0153100 (2010-06-01), Kyung Jin et al.
IBM TDB, “Skewed Servo Write Head,” IP.com, Inc., 1976, IP.com No. IPCOM00086191D.
International Business Machines - Corporation
Quarles & Brady LLP
Regelman Dale F.
Tzeng Fred
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