Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-03-01
2005-03-01
Sniezek, Andrew L. (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
06862155
ABSTRACT:
Position error values are obtained from a transducer head while following a plurality of servo tracks with a servo loop that band-blocks a frequency range that includes F, a nominal rotation frequency. An estimated difference distribution is derived from the position error values, the difference distribution having a first frequency component at a positive frequency ≦2*F. A scalar track squeeze magnitude indicator is derived from the estimated difference distribution so that the indicator to be transmitted depends on the frequency component.
REFERENCES:
patent: 5321570 (1994-06-01), Behr et al.
patent: 5568331 (1996-10-01), Akagi et al.
patent: 5585976 (1996-12-01), Pham
patent: 5602689 (1997-02-01), Kadlec et al.
patent: 5638230 (1997-06-01), Kadlec
patent: 5646797 (1997-07-01), Kadlec et al.
patent: 5677809 (1997-10-01), Kadlec
patent: 5796535 (1998-08-01), Tuttle et al.
patent: 5901010 (1999-05-01), Glover et al.
patent: 5903408 (1999-05-01), Omi
patent: 5914830 (1999-06-01), Kadlec et al.
patent: 5926338 (1999-07-01), Jeon et al.
patent: 5949605 (1999-09-01), Lee et al.
patent: 6025970 (2000-02-01), Cheung
patent: 6069764 (2000-05-01), Morris et al.
patent: 6097565 (2000-08-01), Sri-Jayantha et al.
patent: 20030048569 (2003-03-01), Galloway et al.
Bi Qiang
Lim ChoonKiat
Liu Xiong
Yang Yong Y.
Berger Derek J.
Lucente David K.
Seagate Technology LLC
Slavitt Mitchell
Sniezek Andrew L.
LandOfFree
Squeeze evaluations that account for low frequency... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Squeeze evaluations that account for low frequency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Squeeze evaluations that account for low frequency... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3435390