AUTOMATIC TRACKING DEVICE

PURPOSE:To avoid deterioration of picture quality and instability of pattern by forming an optimum jumping drive signal from each envelope output at a nearly 1/2 period of a ringing frequency component and a prescribed point of time near said point. CONSTITUTION:The envelope of a ringing frequency c...

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1. Verfasser:	OKAFUJI TAKAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator	OKAFUJI TAKAYUKI
description	PURPOSE:To avoid deterioration of picture quality and instability of pattern by forming an optimum jumping drive signal from each envelope output at a nearly 1/2 period of a ringing frequency component and a prescribed point of time near said point. CONSTITUTION:The envelope of a ringing frequency component obtained just after the end of jump reflects nearly accurately on a deviation of a head H to a reproducing track. Thus, a voltage control circuit 30 is provided to a rectangular wave generator 23, the quantity of each envelope output at a point (a) at nearly 1/2 period of the ringing frequency component and at prescribed point of times (b, c) before and after the point (a) is compared and a prescribed voltage control signal is generated from the voltage gate circuit 30 based on the output. Thus, deterioration of picture quality and instability of pattern are avoided entirely.
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CONSTITUTION:The envelope of a ringing frequency component obtained just after the end of jump reflects nearly accurately on a deviation of a head H to a reproducing track. Thus, a voltage control circuit 30 is provided to a rectangular wave generator 23, the quantity of each envelope output at a point (a) at nearly 1/2 period of the ringing frequency component and at prescribed point of times (b, c) before and after the point (a) is compared and a prescribed voltage control signal is generated from the voltage gate circuit 30 based on the output. Thus, deterioration of picture quality and instability of pattern are avoided entirely.</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>1986</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=19860617&DB=EPODOC&CC=JP&NR=S61129723A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860617&DB=EPODOC&CC=JP&NR=S61129723A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKAFUJI TAKAYUKI</creatorcontrib><title>AUTOMATIC TRACKING DEVICE</title><description>PURPOSE:To avoid deterioration of picture quality and instability of pattern by forming an optimum jumping drive signal from each envelope output at a nearly 1/2 period of a ringing frequency component and a prescribed point of time near said point. CONSTITUTION:The envelope of a ringing frequency component obtained just after the end of jump reflects nearly accurately on a deviation of a head H to a reproducing track. Thus, a voltage control circuit 30 is provided to a rectangular wave generator 23, the quantity of each envelope output at a point (a) at nearly 1/2 period of the ringing frequency component and at prescribed point of times (b, c) before and after the point (a) is compared and a prescribed voltage control signal is generated from the voltage gate circuit 30 based on the output. Thus, deterioration of picture quality and instability of pattern are avoided entirely.</description><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><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB0DA3x93UM8XRWCAlydPb29HNXcHEN83R25WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BwWaGhkaW5kbGjsbEqAEAGMUgQA</recordid><startdate>19860617</startdate><enddate>19860617</enddate><creator>OKAFUJI TAKAYUKI</creator><scope>EVB</scope></search><sort><creationdate>19860617</creationdate><title>AUTOMATIC TRACKING DEVICE</title><author>OKAFUJI TAKAYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS61129723A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1986</creationdate><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><toplevel>online_resources</toplevel><creatorcontrib>OKAFUJI TAKAYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OKAFUJI TAKAYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AUTOMATIC TRACKING DEVICE</title><date>1986-06-17</date><risdate>1986</risdate><abstract>PURPOSE:To avoid deterioration of picture quality and instability of pattern by forming an optimum jumping drive signal from each envelope output at a nearly 1/2 period of a ringing frequency component and a prescribed point of time near said point. CONSTITUTION:The envelope of a ringing frequency component obtained just after the end of jump reflects nearly accurately on a deviation of a head H to a reproducing track. Thus, a voltage control circuit 30 is provided to a rectangular wave generator 23, the quantity of each envelope output at a point (a) at nearly 1/2 period of the ringing frequency component and at prescribed point of times (b, c) before and after the point (a) is compared and a prescribed voltage control signal is generated from the voltage gate circuit 30 based on the output. Thus, deterioration of picture quality and instability of pattern are avoided entirely.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
title	AUTOMATIC TRACKING DEVICE
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