DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL

DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL

A data storage device is disclosed comprising a head actuated over a disk. A test pattern is read from a first part of the disk to generate a first read signal that is sampled to generate a first sequence of signal samples. The test pattern is read from a second part of the disk to generate a second...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Eaton, Robert E, Nichols, Mark A
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator Eaton, Robert E
Nichols, Mark A
description A data storage device is disclosed comprising a head actuated over a disk. A test pattern is read from a first part of the disk to generate a first read signal that is sampled to generate a first sequence of signal samples. The test pattern is read from a second part of the disk to generate a second read signal that is sampled to generate a second sequence of signal samples. A third sequence of signal samples is generated by at least one of amplitude-inverting the second sequence of signal samples, time-inverting the second sequence of signal samples, and amplitude-inverting and time-inverting the second sequence of signal samples. A quality metric is generated based on the first sequence of signal samples and the third sequence of signal samples, and a data density of the disk is configured based on the quality metric.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2019371362A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2019371362A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2019371362A13</originalsourceid><addsrcrecordid>eNqNirEKwjAQQLs4iPoPB84F04DieE3OeNCmklwLTqVInEQL9f8RxcHR6cF7b54li4IQpQnoCCx1bAgMVlwGFPYOPt2SjyxnKDGShcYD1qeKpbWUs-8oyNsGEK5_RCC0ENl5rJbZ7DrcprT6cpGtDyTmmKfx0adpHC7pnp59G4uN2uud0tsClf7vegEeiTVk</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL</title><source>esp@cenet</source><creator>Eaton, Robert E ; Nichols, Mark A</creator><creatorcontrib>Eaton, Robert E ; Nichols, Mark A</creatorcontrib><description>A data storage device is disclosed comprising a head actuated over a disk. A test pattern is read from a first part of the disk to generate a first read signal that is sampled to generate a first sequence of signal samples. The test pattern is read from a second part of the disk to generate a second read signal that is sampled to generate a second sequence of signal samples. A third sequence of signal samples is generated by at least one of amplitude-inverting the second sequence of signal samples, time-inverting the second sequence of signal samples, and amplitude-inverting and time-inverting the second sequence of signal samples. A quality metric is generated based on the first sequence of signal samples and the third sequence of signal samples, and a data density of the disk is configured based on the quality metric.</description><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191205&amp;DB=EPODOC&amp;CC=US&amp;NR=2019371362A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191205&amp;DB=EPODOC&amp;CC=US&amp;NR=2019371362A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Eaton, Robert E</creatorcontrib><creatorcontrib>Nichols, Mark A</creatorcontrib><title>DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL</title><description>A data storage device is disclosed comprising a head actuated over a disk. A test pattern is read from a first part of the disk to generate a first read signal that is sampled to generate a first sequence of signal samples. The test pattern is read from a second part of the disk to generate a second read signal that is sampled to generate a second sequence of signal samples. A third sequence of signal samples is generated by at least one of amplitude-inverting the second sequence of signal samples, time-inverting the second sequence of signal samples, and amplitude-inverting and time-inverting the second sequence of signal samples. A quality metric is generated based on the first sequence of signal samples and the third sequence of signal samples, and a data density of the disk is configured based on the quality metric.</description><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNirEKwjAQQLs4iPoPB84F04DieE3OeNCmklwLTqVInEQL9f8RxcHR6cF7b54li4IQpQnoCCx1bAgMVlwGFPYOPt2SjyxnKDGShcYD1qeKpbWUs-8oyNsGEK5_RCC0ENl5rJbZ7DrcprT6cpGtDyTmmKfx0adpHC7pnp59G4uN2uud0tsClf7vegEeiTVk</recordid><startdate>20191205</startdate><enddate>20191205</enddate><creator>Eaton, Robert E</creator><creator>Nichols, Mark A</creator><scope>EVB</scope></search><sort><creationdate>20191205</creationdate><title>DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL</title><author>Eaton, Robert E ; Nichols, Mark A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2019371362A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2019</creationdate><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>Eaton, Robert E</creatorcontrib><creatorcontrib>Nichols, Mark A</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Eaton, Robert E</au><au>Nichols, Mark A</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL</title><date>2019-12-05</date><risdate>2019</risdate><abstract>A data storage device is disclosed comprising a head actuated over a disk. A test pattern is read from a first part of the disk to generate a first read signal that is sampled to generate a first sequence of signal samples. The test pattern is read from a second part of the disk to generate a second read signal that is sampled to generate a second sequence of signal samples. A third sequence of signal samples is generated by at least one of amplitude-inverting the second sequence of signal samples, time-inverting the second sequence of signal samples, and amplitude-inverting and time-inverting the second sequence of signal samples. A quality metric is generated based on the first sequence of signal samples and the third sequence of signal samples, and a data density of the disk is configured based on the quality metric.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US2019371362A1
source esp@cenet
subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title DATA STORAGE DEVICE CALIBRATING DATA DENSITY BASED ON AMPLITUDE-INVERTED OR TIME-INVERTED READ SIGNAL
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-21T08%3A40%3A44IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=Eaton,%20Robert%20E&rft.date=2019-12-05&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS2019371362A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true