DISC DRIVE APPARATUS
A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of...
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| creator | CREMERS, FRANCISCUS, L., M HEERTJES, MARCEL, F RUMPF, HORST SPERLING, FRANK, B LEENKNEGT, GEORGE, A., L |
| description | A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals. An other method is described for discriminating two kinds of disturbances originated by a) disc defects, b) schocks.
L'invention concerne un procédé pour commander une unité de disque optique (1) d'un type comprenant: des moyens d'exploration (30) permettant d'explorer une piste d'enregistrement d'un disque optique (2) et de générer un signal de lecture (SR); des moyens formant actionneur (50) permettant de commander le positionnement d'au moins un élément de lecture/écriture (34) desdits moyens d'exploration (30) par rapport au disque (2); un circuit de commande (90) permettant de recevoir ledit signal de lecture (SR) et de générer au moins un signal de commande d'actionneur (SCR) sur la base d'au moins une composante dudit signal de lecture (SR), ce circuit de commande (90) présentant au moins un paramètre de commande variable. Ledit procédé comporte les étapes consistant à: dériver dudit signal de lecture (SR) au moins deux signaux (REn; MIRn) de types mutuellement différents; et modifier le réglage d'au moins un paramètre de commande variable en fonction desdits au moins deux signaux. |
| format | Patent |
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L'invention concerne un procédé pour commander une unité de disque optique (1) d'un type comprenant: des moyens d'exploration (30) permettant d'explorer une piste d'enregistrement d'un disque optique (2) et de générer un signal de lecture (SR); des moyens formant actionneur (50) permettant de commander le positionnement d'au moins un élément de lecture/écriture (34) desdits moyens d'exploration (30) par rapport au disque (2); un circuit de commande (90) permettant de recevoir ledit signal de lecture (SR) et de générer au moins un signal de commande d'actionneur (SCR) sur la base d'au moins une composante dudit signal de lecture (SR), ce circuit de commande (90) présentant au moins un paramètre de commande variable. Ledit procédé comporte les étapes consistant à: dériver dudit signal de lecture (SR) au moins deux signaux (REn; MIRn) de types mutuellement différents; et modifier le réglage d'au moins un paramètre de commande variable en fonction desdits au moins deux signaux.</description><edition>7</edition><language>eng ; fre</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&date=20050825&DB=EPODOC&CC=WO&NR=2005034103A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050825&DB=EPODOC&CC=WO&NR=2005034103A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CREMERS, FRANCISCUS, L., M</creatorcontrib><creatorcontrib>HEERTJES, MARCEL, F</creatorcontrib><creatorcontrib>RUMPF, HORST</creatorcontrib><creatorcontrib>SPERLING, FRANK, B</creatorcontrib><creatorcontrib>LEENKNEGT, GEORGE, A., L</creatorcontrib><title>DISC DRIVE APPARATUS</title><description>A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals. An other method is described for discriminating two kinds of disturbances originated by a) disc defects, b) schocks.
L'invention concerne un procédé pour commander une unité de disque optique (1) d'un type comprenant: des moyens d'exploration (30) permettant d'explorer une piste d'enregistrement d'un disque optique (2) et de générer un signal de lecture (SR); des moyens formant actionneur (50) permettant de commander le positionnement d'au moins un élément de lecture/écriture (34) desdits moyens d'exploration (30) par rapport au disque (2); un circuit de commande (90) permettant de recevoir ledit signal de lecture (SR) et de générer au moins un signal de commande d'actionneur (SCR) sur la base d'au moins une composante dudit signal de lecture (SR), ce circuit de commande (90) présentant au moins un paramètre de commande variable. Ledit procédé comporte les étapes consistant à: dériver dudit signal de lecture (SR) au moins deux signaux (REn; MIRn) de types mutuellement différents; et modifier le réglage d'au moins un paramètre de commande variable en fonction desdits au moins deux signaux.</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>eNrjZBBx8Qx2VnAJ8gxzVXAMCHAMcgwJDeZhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfHh_kYGBqYGxiaGBsaOxsbEqQIA6e4fYQ</recordid><startdate>20050825</startdate><enddate>20050825</enddate><creator>CREMERS, FRANCISCUS, L., M</creator><creator>HEERTJES, MARCEL, F</creator><creator>RUMPF, HORST</creator><creator>SPERLING, FRANK, B</creator><creator>LEENKNEGT, GEORGE, A., L</creator><scope>EVB</scope></search><sort><creationdate>20050825</creationdate><title>DISC DRIVE APPARATUS</title><author>CREMERS, FRANCISCUS, L., M ; HEERTJES, MARCEL, F ; RUMPF, HORST ; SPERLING, FRANK, B ; LEENKNEGT, GEORGE, A., L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2005034103A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</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>CREMERS, FRANCISCUS, L., M</creatorcontrib><creatorcontrib>HEERTJES, MARCEL, F</creatorcontrib><creatorcontrib>RUMPF, HORST</creatorcontrib><creatorcontrib>SPERLING, FRANK, B</creatorcontrib><creatorcontrib>LEENKNEGT, GEORGE, A., L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CREMERS, FRANCISCUS, L., M</au><au>HEERTJES, MARCEL, F</au><au>RUMPF, HORST</au><au>SPERLING, FRANK, B</au><au>LEENKNEGT, GEORGE, A., L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DISC DRIVE APPARATUS</title><date>2005-08-25</date><risdate>2005</risdate><abstract>A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals. An other method is described for discriminating two kinds of disturbances originated by a) disc defects, b) schocks.
L'invention concerne un procédé pour commander une unité de disque optique (1) d'un type comprenant: des moyens d'exploration (30) permettant d'explorer une piste d'enregistrement d'un disque optique (2) et de générer un signal de lecture (SR); des moyens formant actionneur (50) permettant de commander le positionnement d'au moins un élément de lecture/écriture (34) desdits moyens d'exploration (30) par rapport au disque (2); un circuit de commande (90) permettant de recevoir ledit signal de lecture (SR) et de générer au moins un signal de commande d'actionneur (SCR) sur la base d'au moins une composante dudit signal de lecture (SR), ce circuit de commande (90) présentant au moins un paramètre de commande variable. Ledit procédé comporte les étapes consistant à: dériver dudit signal de lecture (SR) au moins deux signaux (REn; MIRn) de types mutuellement différents; et modifier le réglage d'au moins un paramètre de commande variable en fonction desdits au moins deux signaux.</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 | DISC DRIVE APPARATUS |
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