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US 7,068,464 B2Granted
Double sided magnetic tape
AssigneeStorage Technology Corporation
InventorRichard H. Dee
Life of this patent
Estimating the term…
Abstract
Magnetic tape onto which information may be recorded on either side exhibits the risk of having information recorded on one side affect the opposite side when the two sides are adjacent, such as when the tape is wound in a tape pack. The chance that information recorded onto one surface of a double sided magnetic tape will affect information recorded on the other surface of the magnetic tape is reduced by keeping fields emanating from a recorded region less than about one-half the coercivity of the magnetic medium onto which the information is recorded.
Claims7
A system for recording data comprising:
- a magnetic tape recordable on both a first side and a second side, each of the first side and the second side coated with a material having a set coercivity;
- a first record module for recording data on the first side;
- a second record module for recording data on the second side;
- and
- at least one hub operative to wind the magnetic tape in a tape pack with the first side in contact with the second side;
- wherein data is recorded on the first side and data is recorded on the second side to have a field strength no greater than one half the set coercivity.
3 more elements
Dependencies are inferred from the claim text.