Optical disk device
An optical disk device, characterised in that said optical disk device comprises: a digital demodulation circuit (3026) for receiving a signal which is obtained as a result of reproducing from an optical disk and converting into a two-level signal, on which optical disk a digital modulated signal wa...
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| creator | OKADA, ISAO HIRABUKI, TSUYOSHI |
| description | An optical disk device, characterised in that said optical disk device comprises: a digital demodulation circuit (3026) for receiving a signal which is obtained as a result of reproducing from an optical disk and converting into a two-level signal, on which optical disk a digital modulated signal was previously recorded, said digital demodulation circuit performing digital demodulation on the received signal; a digital phase-locked loop circuit (3030) for generating a clock signal which is in phase synchronization with a demodulated signal output by said digital demodulation circuit; and a digital servo circuit (3034) for performing rotation control of said optical disk so as to correct a frequency error and a phase error between said clock signal and a reference clock signal. |
| format | Patent |
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a digital phase-locked loop circuit (3030) for generating a clock signal which is in phase synchronization with a demodulated signal output by said digital demodulation circuit; and a digital servo circuit (3034) for performing rotation control of said optical disk so as to correct a frequency error and a phase error between said clock signal and a reference clock signal.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2002</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&date=20020327&DB=EPODOC&CC=EP&NR=1191530A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020327&DB=EPODOC&CC=EP&NR=1191530A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKADA, ISAO</creatorcontrib><creatorcontrib>HIRABUKI, TSUYOSHI</creatorcontrib><title>Optical disk device</title><description>An optical disk device, characterised in that said optical disk device comprises: a digital demodulation circuit (3026) for receiving a signal which is obtained as a result of reproducing from an optical disk and converting into a two-level signal, on which optical disk a digital modulated signal was previously recorded, said digital demodulation circuit performing digital demodulation on the received signal; a digital phase-locked loop circuit (3030) for generating a clock signal which is in phase synchronization with a demodulated signal output by said digital demodulation circuit; and a digital servo circuit (3034) for performing rotation control of said optical disk so as to correct a frequency error and a phase error between said clock signal and a reference clock signal.</description><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><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>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD2LyjJTE7MUUjJLM5WSEkty0xO5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BhoaWhqbGBo5GxkQoAQDO7R-z</recordid><startdate>20020327</startdate><enddate>20020327</enddate><creator>OKADA, ISAO</creator><creator>HIRABUKI, TSUYOSHI</creator><scope>EVB</scope></search><sort><creationdate>20020327</creationdate><title>Optical disk device</title><author>OKADA, ISAO ; HIRABUKI, TSUYOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1191530A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2002</creationdate><topic>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>OKADA, ISAO</creatorcontrib><creatorcontrib>HIRABUKI, TSUYOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OKADA, ISAO</au><au>HIRABUKI, TSUYOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optical disk device</title><date>2002-03-27</date><risdate>2002</risdate><abstract>An optical disk device, characterised in that said optical disk device comprises: a digital demodulation circuit (3026) for receiving a signal which is obtained as a result of reproducing from an optical disk and converting into a two-level signal, on which optical disk a digital modulated signal was previously recorded, said digital demodulation circuit performing digital demodulation on the received signal; a digital phase-locked loop circuit (3030) for generating a clock signal which is in phase synchronization with a demodulated signal output by said digital demodulation circuit; and a digital servo circuit (3034) for performing rotation control of said optical disk so as to correct a frequency error and a phase error between said clock signal and a reference clock signal.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP1191530A2 |
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| subjects | AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
| title | Optical disk device |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-10T12%3A51%3A29IST&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=OKADA,%20ISAO&rft.date=2002-03-27&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP1191530A2%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 |