Method and apparatus for creating a format identification...

Details Method and apparatus for creating a format identification... Method and apparatus for creating a format identification...

2005-08-30

2005-08-30

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

Reexamination Certificate

active

06937412

ABSTRACT:
A method, apparatus, and computer instructions for writing data to a magnetic media. A first frequency is written on a first track on the magnetic media on a first track width. A second frequency is written on the first track in which a combination of the first frequency and the second frequency encodes a bit of data on the first track. An erase pattern is created on a second track on the magnetic media, the second track being adjacent to the first track in which the bit of data on the first track is readable by a tape drive system having a second track width wider than the track width of the first track.

REFERENCES:
patent: 4646175 (1987-02-01), Sokolik et al.
patent: 6525898 (2003-02-01), Chliwnyj et al.
patent: 6701450 (2004-03-01), Gold et al.

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