Template pattern for improving printed media self-servo writing

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C360S075000

Reexamination Certificate

active

07092183

ABSTRACT:
Template patterns in accordance with the present invention can be applied to improve printed media self-servo writing by reducing PES noise and SAM error-rate at an outer diameter of a reference surface of a disk. In one such template pattern, zig-bursts within a servo wedge describing radial positioning are replaced with pulses at an inner diameter of the reference surface such that head skew at the inner diameter is a limiting factor for pattern frequency at the inner diameter. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

REFERENCES:
patent: 4354208 (1982-10-01), Maury
patent: 5862005 (1999-01-01), Leis
patent: 6069764 (2000-05-01), Morris
patent: 6304407 (2001-10-01), Baker
patent: 6519107 (2003-02-01), Ehrlich et al.
patent: 6704156 (2004-03-01), Baker et al.
patent: 6738205 (2004-05-01), Moran et al.
patent: 6751042 (2004-06-01), Bi et al.
patent: 6771443 (2004-08-01), Szita et al.
patent: 6785084 (2004-08-01), Szita
patent: 2001/0043428 (2001-11-01), Morris et al.
Saito et al., “Optimization of a Magnetic Printing Process by Computer Simulation,” inIEEE Transactions on Magnetics, vol. 37, No. 4, Jul. 2001, pp. 1389-1392.
Ishida et al., “Demodulation of Servo Tracking Signals Printed with a Lithographically Patterned Master Disk,” inIEEE Transactions on Magnetics, vol. 37, No. 4, Jul. 2001, pp. 1412-1415.
Ishida et al., “Printed Media Technology for an Effective and Inexpensive Servo Track Writing of HDDs,” inIEEE Transactions on Magnetics, vol. 37, No. 4, Jul. 2001, pp. 1875-1877.

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

Template pattern for improving printed media self-servo writing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Template pattern for improving printed media self-servo writing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Template pattern for improving printed media self-servo writing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3631019

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