SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER

In a recording and/or reproducing apparatus having a rotated record carrier, for example, in the form of a disc, adapted to have video or other signals optically recorded in successive turns of a spiral track on a surface of the record disc, a recording and/or reproducing transducer or head assembly...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MASAHIRO KIKUCHI, HITOSHI OKADA, TAKEO KAJI, TAKAO HASHIMOTO
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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	MASAHIRO KIKUCHI HITOSHI OKADA TAKEO KAJI TAKAO HASHIMOTO
description	In a recording and/or reproducing apparatus having a rotated record carrier, for example, in the form of a disc, adapted to have video or other signals optically recorded in successive turns of a spiral track on a surface of the record disc, a recording and/or reproducing transducer or head assembly with an optical system including a movable lens for focusing a light beam at the disc surface and/or a movable mirror for deflecting the light beam so as to cause the latter to scan the track, and a servo system for detecting deviations from the proper focused and/or scanned conditions, for example, due to fluctuations of the rotated record disc in directions normal to, or in the plane of rotation thereof, and for correspondingly displacing the lens and/or mirror, respectively, so as to maintain the proper focused and scanned conditions; such servo system is provided with a gain-frequency characteristic having peaks at a fundamental frequency corresponding to the rotational speed of the record disc and at least at one harmonic of such fundamental frequency so as to improve the accuracy with which the servo system responds to fluctuations of the record disc for maintaining the proper focused and/or scanned condition.
format	Patent
fullrecord	<record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_AU2358877A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>AU2358877A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_AU2358877A3</originalsourceid><addsrcrecordid>eNrjZIgNdg0K8_d1dfZw9PMM9lVw8w9SCHJ19g9y8fRzV3D0c9EHCwQE-buEOoOFAgIcgxxDQoMVQoPBfIUg_xDHEEcnH1ckjc6OQUGerkE8DKxpiTnFqbxQmptB3s01xNlDN7UgPz61uCAxOTUvtSTeMdTI2NTCwtzc0ZiwCgBJ5zIi</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER</title><source>esp@cenet</source><creator>MASAHIRO KIKUCHI ; HITOSHI OKADA ; TAKEO KAJI ; TAKAO HASHIMOTO</creator><creatorcontrib>MASAHIRO KIKUCHI ; HITOSHI OKADA ; TAKEO KAJI ; TAKAO HASHIMOTO</creatorcontrib><description>In a recording and/or reproducing apparatus having a rotated record carrier, for example, in the form of a disc, adapted to have video or other signals optically recorded in successive turns of a spiral track on a surface of the record disc, a recording and/or reproducing transducer or head assembly with an optical system including a movable lens for focusing a light beam at the disc surface and/or a movable mirror for deflecting the light beam so as to cause the latter to scan the track, and a servo system for detecting deviations from the proper focused and/or scanned conditions, for example, due to fluctuations of the rotated record disc in directions normal to, or in the plane of rotation thereof, and for correspondingly displacing the lens and/or mirror, respectively, so as to maintain the proper focused and scanned conditions; such servo system is provided with a gain-frequency characteristic having peaks at a fundamental frequency corresponding to the rotational speed of the record disc and at least at one harmonic of such fundamental frequency so as to improve the accuracy with which the servo system responds to fluctuations of the record disc for maintaining the proper focused and/or scanned condition.</description><language>eng</language><subject>CONTROLLING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; REGULATING ; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</subject><creationdate>1978</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=19780928&DB=EPODOC&CC=AU&NR=2358877A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19780928&DB=EPODOC&CC=AU&NR=2358877A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MASAHIRO KIKUCHI</creatorcontrib><creatorcontrib>HITOSHI OKADA</creatorcontrib><creatorcontrib>TAKEO KAJI</creatorcontrib><creatorcontrib>TAKAO HASHIMOTO</creatorcontrib><title>SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER</title><description>In a recording and/or reproducing apparatus having a rotated record carrier, for example, in the form of a disc, adapted to have video or other signals optically recorded in successive turns of a spiral track on a surface of the record disc, a recording and/or reproducing transducer or head assembly with an optical system including a movable lens for focusing a light beam at the disc surface and/or a movable mirror for deflecting the light beam so as to cause the latter to scan the track, and a servo system for detecting deviations from the proper focused and/or scanned conditions, for example, due to fluctuations of the rotated record disc in directions normal to, or in the plane of rotation thereof, and for correspondingly displacing the lens and/or mirror, respectively, so as to maintain the proper focused and scanned conditions; such servo system is provided with a gain-frequency characteristic having peaks at a fundamental frequency corresponding to the rotational speed of the record disc and at least at one harmonic of such fundamental frequency so as to improve the accuracy with which the servo system responds to fluctuations of the record disc for maintaining the proper focused and/or scanned condition.</description><subject>CONTROLLING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>REGULATING</subject><subject>SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1978</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIgNdg0K8_d1dfZw9PMM9lVw8w9SCHJ19g9y8fRzV3D0c9EHCwQE-buEOoOFAgIcgxxDQoMVQoPBfIUg_xDHEEcnH1ckjc6OQUGerkE8DKxpiTnFqbxQmptB3s01xNlDN7UgPz61uCAxOTUvtSTeMdTI2NTCwtzc0ZiwCgBJ5zIi</recordid><startdate>19780928</startdate><enddate>19780928</enddate><creator>MASAHIRO KIKUCHI</creator><creator>HITOSHI OKADA</creator><creator>TAKEO KAJI</creator><creator>TAKAO HASHIMOTO</creator><scope>EVB</scope></search><sort><creationdate>19780928</creationdate><title>SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER</title><author>MASAHIRO KIKUCHI ; HITOSHI OKADA ; TAKEO KAJI ; TAKAO HASHIMOTO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU2358877A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1978</creationdate><topic>CONTROLLING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>REGULATING</topic><topic>SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</topic><toplevel>online_resources</toplevel><creatorcontrib>MASAHIRO KIKUCHI</creatorcontrib><creatorcontrib>HITOSHI OKADA</creatorcontrib><creatorcontrib>TAKEO KAJI</creatorcontrib><creatorcontrib>TAKAO HASHIMOTO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MASAHIRO KIKUCHI</au><au>HITOSHI OKADA</au><au>TAKEO KAJI</au><au>TAKAO HASHIMOTO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER</title><date>1978-09-28</date><risdate>1978</risdate><abstract>In a recording and/or reproducing apparatus having a rotated record carrier, for example, in the form of a disc, adapted to have video or other signals optically recorded in successive turns of a spiral track on a surface of the record disc, a recording and/or reproducing transducer or head assembly with an optical system including a movable lens for focusing a light beam at the disc surface and/or a movable mirror for deflecting the light beam so as to cause the latter to scan the track, and a servo system for detecting deviations from the proper focused and/or scanned conditions, for example, due to fluctuations of the rotated record disc in directions normal to, or in the plane of rotation thereof, and for correspondingly displacing the lens and/or mirror, respectively, so as to maintain the proper focused and scanned conditions; such servo system is provided with a gain-frequency characteristic having peaks at a fundamental frequency corresponding to the rotational speed of the record disc and at least at one harmonic of such fundamental frequency so as to improve the accuracy with which the servo system responds to fluctuations of the record disc for maintaining the proper focused and/or scanned condition.</abstract><oa>free_for_read</oa></addata></record>
fulltext	fulltext_linktorsrc
identifier
ispartof
issn
language	eng
recordid	cdi_epo_espacenet_AU2358877A
source	esp@cenet
subjects	CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
title	SERVOMECHANISM FOR RECORDING AND/OR REPRODUCING APPARATUS USING A ROTATABLE RECORDING CARRIER
url	https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-03T08%3A09%3A50IST&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=MASAHIRO%20KIKUCHI&rft.date=1978-09-28&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EAU2358877A%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