Dynamic magnetic information storage or retrieval – Modulating or demodulating – Frequency
Reexamination Certificate
2008-09-19
2010-11-02
Olson, Jason C (Department: 2627)
Dynamic magnetic information storage or retrieval
Modulating or demodulating
Frequency
C360S046000, C360S324000
Reexamination Certificate
active
07826160
ABSTRACT:
A magnetic head, includes a magnetic oscillation element, the oscillation frequency of which is modulated by a medium magnetic field, and a reproducing device configured to detect a phase difference between the adjacent oscillation signals derived from the magnetic oscillation element and output a phase difference signal as a reproduced signal.
REFERENCES:
patent: 4247866 (1981-01-01), Wilber et al.
patent: 4481546 (1984-11-01), Ito et al.
patent: 6798623 (2004-09-01), Seigler et al.
patent: 7471491 (2008-12-01), Sato et al.
patent: 7602588 (2009-10-01), Sato et al.
patent: 7633699 (2009-12-01), Kaka et al.
patent: 2005/0023938 (2005-02-01), Sato et al.
patent: 2006/0222835 (2006-10-01), Kudo et al.
patent: 2006-28609 (2006-02-01), None
patent: 2006-286093 (2006-10-01), None
Korean Office Action dated Feb. 22, 2010 from corresponding Korean Patent Application No. 10-2008-87743.
Mizushima Koichi
Sato Rie
Kabushiki Kaisha Toshiba
Ohlandt Greeley Ruggiero & Perle LLP
Olson Jason C
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