Patent ID: 11929104
Assignee: SEAGATE TECHNOLOGY LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A data storage device, comprising:
a magnetic disk;
a recording head comprising:
a magnetic write transducer having a first crosstrack width; and
a magnetic erase transducer physically and electrically separate from the magnetic write transducer, the magnetic erase transducer comprising two or more crosstrack segments that can be individually activated, the two or more crosstrack segments having different crosstrack widths, at least one of the different crosstrack widths corresponding to a second crosstrack width at least two times larger than the first crosstrack width; and
a controller coupled to the recording head and operable to:
send a write signal to cause the magnetic write transducer to write single tracks of encoded user data at a time to the magnetic disk; and
send an erase signal to cause the magnetic erase transducer to simultaneously erase multiple tracks of the encoded user data from the magnetic disk.