Back to results
US 10,366,711 B1Granted
Applying a pre-erase or pre-condition field to a hard disk before writing data to the hard disk
AssigneeSeagate Technology LLC
InventorsYanzhang Liu, Javier Ignacio Guzman, Zuxuan Lin, Kirill Aleksandrovich Rivkin
Life of this patent
Estimating the term…
Abstract
A pattern is pre-written using a pre-erase or pre-conditioning magnetic field applied within at least part of a target track of a hard disk via a first write transducer prior to the target track being written. Subsequent to the pre-writing, target user data is written to the part of the target track.
Claims21
A method, comprising:
- detecting an event during field operation of a hard drive that causes at least part of a track of the hard drive to be selected for pre-erase or preconditioning;
- in response to the event, pre-writing a pattern using a pre-erase or pre-conditioning magnetic field applied within at least part of the selected track via a first write transducer prior to the selected track being written;
- and
- subsequent to the pre-writing, writing target user data over the pattern pre-written to the part of the selected track.
1 more element
A method comprising:
- receiving a write command to write target user data to a target track of a hard disk;
- pre-writing a pattern using a pre-erase or pre-conditioning magnetic field applied to an adjacent track proximate the target track via a first write transducer prior to the target track being written;
- and
- subsequent to the pre-writing, writing the target user data to the part of the target track.
1 more element
An apparatus comprising:
- interface circuitry operable to communicate with a first write transducer of the apparatus that applies a magnetic field to a hard disk of the apparatus;
- and
- a controller coupled to the interface circuitry and operable to:
- detect an event during field operation of the apparatus that causes at least part of a track of the hard drive to be selected for pre-erase or preconditioning;
- in response to the event, pre-write a pattern using a pre-erase or pre-conditioning magnetic field applied within at least part of the selected track of the hard disk via the first write transducer prior to the selected track being written;
- and
- subsequent to the pre-writing, write target user data to the part of the selected track.
4 more elements
Dependencies are inferred from the claim text.