OPTICAL DISK DEVICE

OPTICAL DISK DEVICE

PROBLEM TO BE SOLVED: To quickly and surely conduct a pull-in of a tilt servo of an objective lens holding body with respect to an optical disk. SOLUTION: Prior to pull-in a tilt servo, the position of an objective lens holding body is driven by the focus driving means (a driving coil) of a lens act...

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1. Verfasser: MOGI YASUO
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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description PROBLEM TO BE SOLVED: To quickly and surely conduct a pull-in of a tilt servo of an objective lens holding body with respect to an optical disk. SOLUTION: Prior to pull-in a tilt servo, the position of an objective lens holding body is driven by the focus driving means (a driving coil) of a lens actuator 9 so that the body is located at a center position along a focus direction. Thus, the direction of an objective lens holding body 3, which is tilted, becomes approximately horizontal by the mechanical interference between the focus direction and the tilt, and a tilt sensor 10 detects a tilt error. Then, a pull-in of a tilt servo can be conducted to quickly and surely execute a tilt servo.
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SOLUTION: Prior to pull-in a tilt servo, the position of an objective lens holding body is driven by the focus driving means (a driving coil) of a lens actuator 9 so that the body is located at a center position along a focus direction. Thus, the direction of an objective lens holding body 3, which is tilted, becomes approximately horizontal by the mechanical interference between the focus direction and the tilt, and a tilt sensor 10 detects a tilt error. Then, a pull-in of a tilt servo can be conducted to quickly and surely execute a tilt servo.</description><edition>7</edition><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2000</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=20001006&amp;DB=EPODOC&amp;CC=JP&amp;NR=2000276756A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20001006&amp;DB=EPODOC&amp;CC=JP&amp;NR=2000276756A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MOGI YASUO</creatorcontrib><title>OPTICAL DISK DEVICE</title><description>PROBLEM TO BE SOLVED: To quickly and surely conduct a pull-in of a tilt servo of an objective lens holding body with respect to an optical disk. 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Then, a pull-in of a tilt servo can be conducted to quickly and surely execute a tilt servo.</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>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD2DwjxdHb0UXDxDPZWcHEN83R25WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgYGBkbmZuamZo7GRCkCAIUbHps</recordid><startdate>20001006</startdate><enddate>20001006</enddate><creator>MOGI YASUO</creator><scope>EVB</scope></search><sort><creationdate>20001006</creationdate><title>OPTICAL DISK DEVICE</title><author>MOGI YASUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2000276756A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</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>MOGI YASUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MOGI YASUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OPTICAL DISK DEVICE</title><date>2000-10-06</date><risdate>2000</risdate><abstract>PROBLEM TO BE SOLVED: To quickly and surely conduct a pull-in of a tilt servo of an objective lens holding body with respect to an optical disk. SOLUTION: Prior to pull-in a tilt servo, the position of an objective lens holding body is driven by the focus driving means (a driving coil) of a lens actuator 9 so that the body is located at a center position along a focus direction. Thus, the direction of an objective lens holding body 3, which is tilted, becomes approximately horizontal by the mechanical interference between the focus direction and the tilt, and a tilt sensor 10 detects a tilt error. Then, a pull-in of a tilt servo can be conducted to quickly and surely execute a tilt servo.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title OPTICAL DISK DEVICE
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