| Patent application number | Description | Published |
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| 20110058271 | SYSTEMS AND METHODS FOR REDUCING CROSSTALK BETWEEN ADJACENT WRITERS - In one general embodiment, a recording system controller includes a controller controlling a timing of flux switching of adjacent pairs of writers such that the writers in a given pair do not switch substantially concurrently, and reducing a current of one of the writers in the pair while the adjacent writer is writing a transition. In another general embodiment, a recording system controller includes a controller controlling a timing of pulse writing of adjacent pairs of writers such that the writers in a given pair do not pulse substantially concurrently. In yet another general embodiment, a method includes controlling a timing of pulse writing or flux switching of adjacent pairs of writers such that the writers in a given pair do not pulse or switch substantially concurrently. | 03-10-2011 |
| 20110059336 | MAGNETIC HEAD WITH TEXTURED SURFACES - A method according to one embodiment includes contacting an oxidant with an AlTiC portion of a magnetic head for recessing TiC grains of the AlTiC portion. A method according to another embodiment includes contacting a peroxide with an AlTiC portion of a magnetic head for recessing TiC grains of the AlTiC portion from a media bearing surface of the AlTiC portion. A magnetic head according to yet another embodiment includes an AlTiC portion having a media bearing surface; and a thin film portion coupled to the AlTiC portion, wherein TiC grains of the AlTiC portion are recessed from the media bearing surface. | 03-10-2011 |
| 20110085265 | MAGNETICALLY SHIELDED WRITE TRANSDUCERS - A magnetic head according to one embodiment includes at least two write transducers for writing to a magnetic medium; and a shield structure having at least two magnetically connected shields which at least partially cover two opposite sides of the writer. A magnetic head according to another embodiment includes at least two write transducers for writing to a magnetic medium, the at least two write transducers being positioned adjacent each other and aligned along a line; and a shield structure having shields adjacent at least three sides of each of the at least two write transducers, the shields being formed of a magnetically permeable material. Additional devices, systems, and methods are also presented. | 04-14-2011 |
| 20110102116 | MAGNETIC WRITER HAVING MULTIPLE GAPS WITH MORE UNIFORM MAGNETIC FIELDS ACROSS THE GAPS - A magnetic device according to one embodiment includes a source of flux; a magnetic pole coupled to the source of flux, the magnetic pole having two or more gaps; and a low reluctance path positioned towards at least one of the gaps and not positioned towards at least one other of the gaps for affecting a magnetic field formed at the at least one of the gaps when the source of flux is generating flux. Other disclosed embodiments include devices having coil turns with a non-uniform placement in the magnetic yoke for altering a magnetic field formed at the at least one of the gaps during writing. In further embodiments, a geometry of the magnetic pole near or at one of the gaps is different than a geometry of the magnetic pole near or at another of the gaps to help equalize fields formed at the gaps when the source of flux is generating flux. | 05-05-2011 |
| 20110109988 | SYSTEMS AND METHODS FOR COMPENSATING FOR CROSSTALK BETWEEN NEARBY WRITERS - A recording system controller according to one embodiment includes a controller capable of selecting a level of a current or voltage applied to a first writer during the creation of a magnetic transition based on a current in at least one nearby writer. A recording system controller according to another embodiment includes a controller capable of selecting a timing of a current change applied to a first writer based on a current in at least one nearby writer for compensating for an effect of crosstalk from the at least one nearby writer. A method according to yet another embodiment includes selecting a level of a current or voltage applied to a first writer or selecting a timing of a current change applied to the first writer based on a current in at least one nearby writer for compensating for an effect of crosstalk from the at least one nearby writer. | 05-12-2011 |
