Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Reexamination Certificate
2007-01-02
2008-10-07
Nguyen, Hoa T. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
C360S074100
Reexamination Certificate
active
07433146
ABSTRACT:
Disclosed is a method for reducing occurrences of tape stick conditions in magnetic tape, the method including stopping functional rotation of each of two bi-directionally rotatable reels of a reel-to-reel tape drive that includes a length of magnetic tape at least partially wound around each reel, a portion of the length of tape extending between the two moveable reels and contacting a head positioned between the two reels; wherein the stopping creates a stop condition in the tape drive, actuating a fractional rotation at least one of the two bi-directionally movable reels a fraction of a reel turn in a first direction during the stop condition, causing the portion of the length of tape to at least temporarily break contact with the head via the fractional rotation, and re-starting functional rotation of each of the reels, ending the stop condition via the re-starting.
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“Unsticking a Magnetic Tape from a Magnetic Head,” May 1972, IBM TDB vol. 14, No. 12, p. 3674.
Bayang Josephine F.
Gale Ernest S.
Ogura Eiji
Cantor & Colburn LLP
Goudy Kurt
Habermehl James L
International Business Machines - Corporation
Nguyen Hoa T.
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