Hgst Netherlands, B.v.

Seagate Technology Incorporated

Richard Michael Brockie

Richard Leo Galbraith

Erhard Theodor Schreck

Barry C Stipe

Petrus Antonius Van Der Heijden

Roger William Wood

Hans Juergen Richter

Hans Jurgen Richter

Gregory John Parker

A method, apparatus and a data storage device are provided for implementing track following and data recovery with readback of shingled data written in overlapping shingled data tracks on a recordable surface of a storage device. Positional information is identified with data readback of shingled data written in overlapping shingled data tracks. The identified positional information is used to selectively modify at least one predefined channel parameter, for example, to provide enhanced track following and enhanced data recovery.

Implementing track following using data characteristics for positional information

A thermally-assisted recording (TAR) disk drive operates by turning on write current prior to the application of heat to the recording layer by the near-field transducer (NFT). In a TAR disk drive that uses thermal fly-height control (TFC), TFC power is at a first power level that keeps the write pole at a predetermined fly-height. The write current is then turned on, either simultaneously with or after a reduction in TFC power. The write pole then reaches its optimal fly-height as a result of the combination of write pole protrusion caused by the write current and retraction of the write pole caused by the reduction in TFC power. After the write pole has reached its optimal fly-height, heat is applied to the recording layer by the NFT. The combination of write current and heat causes writing to occur at the optimal write pole fly-height.

Method for controlling writing in a thermally-assisted recording (TAR) disk drive with thermal fly-height control

Method for energy barrier equalization of magnetic recording media and media obtained thereby

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Los Gatos, CA, United States of America

Richard Michael Brockie