Back to results
US 10,475,473 B2Granted
Recording head with multiple magnetic writers simultaneously writing to adjacent tracks
AssigneeSeagate Technology LLC
InventorMehmet Fatih Erden
Life of this patent
Estimating the term…
Abstract
A recording head has a first magnetic writer and a second magnetic writer offset from the first magnetic writer in a downtrack and crosstrack direction. The recording head has leads configured to deliver respective first and second write and/or laser currents to the first and second writers. The first and second write and/or laser currents enable the first and second writers to simultaneously write to adjacent tracks of a magnetic disk.
Claims18
A head-gimbal assembly comprising:
- a first magnetic writer;
- a second magnetic writer offset from the first magnetic writer in at least a downtrack direction;
- and
- leads configured to deliver respective first and second write currents to the first and second writers, the first and second write currents enabling the first and second writers to simultaneously write two adjacent two-dimensional magnetic recording tracks to a magnetic disk;
- wherein the first magnetic writer is located ahead of the second magnetic writer when writing, a write width of the first magnetic writer being varied depending on a skew angle of the arm over the magnetic disk.
2 more elements
A system comprising:
- an arm configured to rotate radially across a magnetic disk;
- a head-gimbal assembly located at an end of the arm, the head-gimbal assembly comprising:
- a first magnetic writer;
- a second magnetic writer offset from the first magnetic writer in at least a downtrack direction;
- and
- leads configured to deliver respective first and second write currents to the first and second writers, the first and second write currents enabling the first and second writers to simultaneously write two adjacent tracks of the magnetic disk;
- wherein the first magnetic writer is located ahead of the second magnetic writer when writing, a write width of the first magnetic writer being varied depending on a skew angle of the arm over the magnetic disk.
4 more elements
A method, comprising:
- delivering a first write current to a first magnetic writer of a recording head;
- and
- delivering a second current to a second magnetic writer commonly located on the recording head, the second magnetic writer offset from the first magnetic writer in at least a downtrack direction, the first and second write currents enabling the first and second writers to simultaneously write two adjacent two-dimensional magnetic recording tracks to a magnetic disk;
- wherein the first magnetic writer is located ahead of the second magnetic writer when writing, the method further comprising varying a write width of the first magnetic writer depending on a skew angle of the recording head over the magnetic disk.
1 more element
Dependencies are inferred from the claim text.