Servo control method and servo control circuit, and optical disk device having the same servo control circuit

Servo control method and servo control circuit, and optical disk device having the same servo control circuit

The present invention discloses a servo control method and servo control circuit, and optical disc device having the same servo control circuit. A servo error signal and a defect detection signal are generated from an output signal of a pickup unit, and a servo control signal and a hold signal are g...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HAYASHIDA, KAZUHISHA, INOUE, YUKIO, KURIYAMA, HIROMI, YAMAGUCHI, KAZUYUKI, UDO, YUICHI, ANDO, RYO, KUSANO, TAIZOU, FUJIMOTO, YUKO, OOISHI, TAKASHI, KANEO, YASUHIRO
Format: Patent
Sprache:chi ; 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 HAYASHIDA, KAZUHISHA
INOUE, YUKIO
KURIYAMA, HIROMI
YAMAGUCHI, KAZUYUKI
UDO, YUICHI
ANDO, RYO
KUSANO, TAIZOU
FUJIMOTO, YUKO
OOISHI, TAKASHI
KANEO, YASUHIRO
description The present invention discloses a servo control method and servo control circuit, and optical disc device having the same servo control circuit. A servo error signal and a defect detection signal are generated from an output signal of a pickup unit, and a servo control signal and a hold signal are generated from the servo error signal. When changing to either a servo control signal or a hold signal based on the defect detection signal generated in a defect detection signal generation circuit, so as to perform servo control of the pickup unit, a servo error signal in a predetermined time before a timing changing from the servo control signal to the hold signal is used as the servo error signal for generating the hold signal. The defect detection signal generation circuit has a peak holding circuit having different tracking capabilities.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_TW200511268A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>TW200511268A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_TW200511268A3</originalsourceid><addsrcrecordid>eNqNizEKAjEQANNYiPqHtVe4O1FsRRR7DyyPsFkvwSQbkjXvF8RGsLCaYmamKlwpVwbkKJk9BBLLBnQ0UL4EuoxPJ6u34iQOtQfjygMMVYcEVlcXRxBLUHSg3_tcTe7aF1p8OFPL86k_XtaUeKCSNFIkGfpb1zTbtu12-8Pmn-YFbsRCTg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Servo control method and servo control circuit, and optical disk device having the same servo control circuit</title><source>esp@cenet</source><creator>HAYASHIDA, KAZUHISHA ; INOUE, YUKIO ; KURIYAMA, HIROMI ; YAMAGUCHI, KAZUYUKI ; UDO, YUICHI ; ANDO, RYO ; KUSANO, TAIZOU ; FUJIMOTO, YUKO ; OOISHI, TAKASHI ; KANEO, YASUHIRO</creator><creatorcontrib>HAYASHIDA, KAZUHISHA ; INOUE, YUKIO ; KURIYAMA, HIROMI ; YAMAGUCHI, KAZUYUKI ; UDO, YUICHI ; ANDO, RYO ; KUSANO, TAIZOU ; FUJIMOTO, YUKO ; OOISHI, TAKASHI ; KANEO, YASUHIRO</creatorcontrib><description>The present invention discloses a servo control method and servo control circuit, and optical disc device having the same servo control circuit. A servo error signal and a defect detection signal are generated from an output signal of a pickup unit, and a servo control signal and a hold signal are generated from the servo error signal. When changing to either a servo control signal or a hold signal based on the defect detection signal generated in a defect detection signal generation circuit, so as to perform servo control of the pickup unit, a servo error signal in a predetermined time before a timing changing from the servo control signal to the hold signal is used as the servo error signal for generating the hold signal. The defect detection signal generation circuit has a peak holding circuit having different tracking capabilities.</description><language>chi ; eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2005</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=20050316&amp;DB=EPODOC&amp;CC=TW&amp;NR=200511268A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20050316&amp;DB=EPODOC&amp;CC=TW&amp;NR=200511268A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HAYASHIDA, KAZUHISHA</creatorcontrib><creatorcontrib>INOUE, YUKIO</creatorcontrib><creatorcontrib>KURIYAMA, HIROMI</creatorcontrib><creatorcontrib>YAMAGUCHI, KAZUYUKI</creatorcontrib><creatorcontrib>UDO, YUICHI</creatorcontrib><creatorcontrib>ANDO, RYO</creatorcontrib><creatorcontrib>KUSANO, TAIZOU</creatorcontrib><creatorcontrib>FUJIMOTO, YUKO</creatorcontrib><creatorcontrib>OOISHI, TAKASHI</creatorcontrib><creatorcontrib>KANEO, YASUHIRO</creatorcontrib><title>Servo control method and servo control circuit, and optical disk device having the same servo control circuit</title><description>The present invention discloses a servo control method and servo control circuit, and optical disc device having the same servo control circuit. A servo error signal and a defect detection signal are generated from an output signal of a pickup unit, and a servo control signal and a hold signal are generated from the servo error signal. When changing to either a servo control signal or a hold signal based on the defect detection signal generated in a defect detection signal generation circuit, so as to perform servo control of the pickup unit, a servo error signal in a predetermined time before a timing changing from the servo control signal to the hold signal is used as the servo error signal for generating the hold signal. The defect detection signal generation circuit has a peak holding circuit having different tracking capabilities.</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>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNizEKAjEQANNYiPqHtVe4O1FsRRR7DyyPsFkvwSQbkjXvF8RGsLCaYmamKlwpVwbkKJk9BBLLBnQ0UL4EuoxPJ6u34iQOtQfjygMMVYcEVlcXRxBLUHSg3_tcTe7aF1p8OFPL86k_XtaUeKCSNFIkGfpb1zTbtu12-8Pmn-YFbsRCTg</recordid><startdate>20050316</startdate><enddate>20050316</enddate><creator>HAYASHIDA, KAZUHISHA</creator><creator>INOUE, YUKIO</creator><creator>KURIYAMA, HIROMI</creator><creator>YAMAGUCHI, KAZUYUKI</creator><creator>UDO, YUICHI</creator><creator>ANDO, RYO</creator><creator>KUSANO, TAIZOU</creator><creator>FUJIMOTO, YUKO</creator><creator>OOISHI, TAKASHI</creator><creator>KANEO, YASUHIRO</creator><scope>EVB</scope></search><sort><creationdate>20050316</creationdate><title>Servo control method and servo control circuit, and optical disk device having the same servo control circuit</title><author>HAYASHIDA, KAZUHISHA ; INOUE, YUKIO ; KURIYAMA, HIROMI ; YAMAGUCHI, KAZUYUKI ; UDO, YUICHI ; ANDO, RYO ; KUSANO, TAIZOU ; FUJIMOTO, YUKO ; OOISHI, TAKASHI ; KANEO, YASUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_TW200511268A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2005</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>HAYASHIDA, KAZUHISHA</creatorcontrib><creatorcontrib>INOUE, YUKIO</creatorcontrib><creatorcontrib>KURIYAMA, HIROMI</creatorcontrib><creatorcontrib>YAMAGUCHI, KAZUYUKI</creatorcontrib><creatorcontrib>UDO, YUICHI</creatorcontrib><creatorcontrib>ANDO, RYO</creatorcontrib><creatorcontrib>KUSANO, TAIZOU</creatorcontrib><creatorcontrib>FUJIMOTO, YUKO</creatorcontrib><creatorcontrib>OOISHI, TAKASHI</creatorcontrib><creatorcontrib>KANEO, YASUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HAYASHIDA, KAZUHISHA</au><au>INOUE, YUKIO</au><au>KURIYAMA, HIROMI</au><au>YAMAGUCHI, KAZUYUKI</au><au>UDO, YUICHI</au><au>ANDO, RYO</au><au>KUSANO, TAIZOU</au><au>FUJIMOTO, YUKO</au><au>OOISHI, TAKASHI</au><au>KANEO, YASUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Servo control method and servo control circuit, and optical disk device having the same servo control circuit</title><date>2005-03-16</date><risdate>2005</risdate><abstract>The present invention discloses a servo control method and servo control circuit, and optical disc device having the same servo control circuit. A servo error signal and a defect detection signal are generated from an output signal of a pickup unit, and a servo control signal and a hold signal are generated from the servo error signal. When changing to either a servo control signal or a hold signal based on the defect detection signal generated in a defect detection signal generation circuit, so as to perform servo control of the pickup unit, a servo error signal in a predetermined time before a timing changing from the servo control signal to the hold signal is used as the servo error signal for generating the hold signal. The defect detection signal generation circuit has a peak holding circuit having different tracking capabilities.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_TW200511268A
source esp@cenet
subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Servo control method and servo control circuit, and optical disk device having the same servo control circuit
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T16%3A56%3A03IST&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=HAYASHIDA,%20KAZUHISHA&rft.date=2005-03-16&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ETW200511268A%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