Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2007-12-13
2010-06-08
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07733596
ABSTRACT:
A system and method for identifying signal degradation in a tape drive is disclosed in which a data signal read from the tape drive and the signal characteristics of the undecoded portion of the data stream are compared with a set of known values. The undecoded portion of the data may comprise the preamble portion of the signal and the comparison set of known values may be saved to local storage on the tape drive. If the comparison of the signal characteristics of the undecoded portion of the data stream and the known set of signal values indicates that data signal is degraded, a notification is generated that indicates that the signal at the tape drive is degraded.
REFERENCES:
patent: 4549295 (1985-10-01), Purvis
patent: 4630283 (1986-12-01), Schiff
patent: 4815068 (1989-03-01), Dolby et al.
patent: 5185806 (1993-02-01), Dolby et al.
patent: 5416607 (1995-05-01), Tezuka et al.
patent: 6125343 (2000-09-01), Schuster
patent: 6385314 (2002-05-01), Furuya
patent: 6480556 (2002-11-01), Guey
patent: 6687305 (2004-02-01), Nakamura et al.
patent: 6754274 (2004-06-01), Park
patent: 6947874 (2005-09-01), Chen
patent: 7088764 (2006-08-01), Kaewell, Jr.
patent: 2001/0048486 (2001-12-01), Akama et al.
patent: 2002/0051498 (2002-05-01), Thomas et al.
patent: 2005/0075098 (2005-04-01), Lee et al.
patent: 2005/0123267 (2005-06-01), Tsumagari et al.
patent: 2007/0116055 (2007-05-01), Atsumi et al.
patent: 2007/0274407 (2007-11-01), Thomson et al.
patent: 2009/0150412 (2009-06-01), Idicula et al.
Gage Donald B.
Guthan Donald C.
Theobald William
Zumwalt Randall H.
Baker & Botts L.L.P.
Dell Products L.P.
Tzeng Fred
LandOfFree
System and method for identifying the signal integrity of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for identifying the signal integrity of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for identifying the signal integrity of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4249632