Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein

Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein

An apparatus and method of adaptively controlling a flying height of a magnetic head above a disk in accordance with a change in a user environment of a disk drive apparatus includes determining if a parameter reset condition related to the flying height of the magnetic head has been set; measuring...

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1. Verfasser: Park, Jong-lak
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creator Park, Jong-lak
description An apparatus and method of adaptively controlling a flying height of a magnetic head above a disk in accordance with a change in a user environment of a disk drive apparatus includes determining if a parameter reset condition related to the flying height of the magnetic head has been set; measuring a temperature of a disk drive if the parameter reset condition has been set, obtaining a flying height profile representing a variation of spacing between the magnetic head and a disk in accordance with a variation of power supplied to a heater controlling the flying height of the magnetic head at the measured temperature, based on a reference flying height profile stored in the disk drive, and determining the power that is to be supplied to the heater of the magnetic head, the power corresponding to a target flying height of the magnetic head from the obtained flying height profile.
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measuring a temperature of a disk drive if the parameter reset condition has been set, obtaining a flying height profile representing a variation of spacing between the magnetic head and a disk in accordance with a variation of power supplied to a heater controlling the flying height of the magnetic head at the measured temperature, based on a reference flying height profile stored in the disk drive, and determining the power that is to be supplied to the heater of the magnetic head, the power corresponding to a target flying height of the magnetic head from the obtained flying height profile.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNqNyksKwjAQgOFuXIh6h7mAUB8orn3gAdzr0EySwXQSkqnQ29uAB3D1wc8_b14XLm8wmT8EmBJm1KEAioGe1EcD0QIaTDoNYYQuiuYYAosDG8aKJ3Ze69ejE1LupoQG1FMmlmUzsxgKrX4uGrhdH-f7eigJlUTL02WstMfTYbPftrs_li-BaD5M</recordid><startdate>20110614</startdate><enddate>20110614</enddate><creator>Park, Jong-lak</creator><scope>EFH</scope></search><sort><creationdate>20110614</creationdate><title>Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein</title><author>Park, Jong-lak</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_079614203</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Park, Jong-lak</creatorcontrib><creatorcontrib>Samsung Electronics Co., Ltd</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Park, Jong-lak</au><aucorp>Samsung Electronics Co., Ltd</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein</title><date>2011-06-14</date><risdate>2011</risdate><abstract>An apparatus and method of adaptively controlling a flying height of a magnetic head above a disk in accordance with a change in a user environment of a disk drive apparatus includes determining if a parameter reset condition related to the flying height of the magnetic head has been set; measuring a temperature of a disk drive if the parameter reset condition has been set, obtaining a flying height profile representing a variation of spacing between the magnetic head and a disk in accordance with a variation of power supplied to a heater controlling the flying height of the magnetic head at the measured temperature, based on a reference flying height profile stored in the disk drive, and determining the power that is to be supplied to the heater of the magnetic head, the power corresponding to a target flying height of the magnetic head from the obtained flying height profile.</abstract><oa>free_for_read</oa></addata></record>
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title Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein
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