FLEXIBLE DISC DRIVING DEVICE

FLEXIBLE DISC DRIVING DEVICE

PURPOSE:To rotate automatically a spindle motor for attachment and detachment of a disc, and to attach and detach the disc quickly, by rotating a DC motor, where the rise speed is made high only when a door mechanism in case of opening and closing a disc attaching and detaching aperture is opened an...

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Hauptverfasser: NAKAMURA KUNIO, KITAZAWA KEIJI
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator NAKAMURA KUNIO
KITAZAWA KEIJI
description PURPOSE:To rotate automatically a spindle motor for attachment and detachment of a disc, and to attach and detach the disc quickly, by rotating a DC motor, where the rise speed is made high only when a door mechanism in case of opening and closing a disc attaching and detaching aperture is opened and a motor on signal is outputted from a disc controller. CONSTITUTION:The motor on signal is generated by a retriggerrable one shot circuit 18 as a motor controlling circuit, At the access time, the one shot circuit 18 is triggerred retriggerrably by the trigger signal from a disc controller 12 to generate the motor on signal, and OR between this signal and the output signal of a switch 9 is operated by an OR gate 17 to control turning-on/off of a transistor 15. That is, a DC motor 14 is rotated when the motor on signal or an output signal related to opening of a door mechanism 8 from the switch 9 is obtained in the side of a disc device 13.
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CONSTITUTION:The motor on signal is generated by a retriggerrable one shot circuit 18 as a motor controlling circuit, At the access time, the one shot circuit 18 is triggerred retriggerrably by the trigger signal from a disc controller 12 to generate the motor on signal, and OR between this signal and the output signal of a switch 9 is operated by an OR gate 17 to control turning-on/off of a transistor 15. That is, a DC motor 14 is rotated when the motor on signal or an output signal related to opening of a door mechanism 8 from the switch 9 is obtained in the side of a disc device 13.</description><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>1983</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=19830822&amp;DB=EPODOC&amp;CC=JP&amp;NR=S58141470A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19830822&amp;DB=EPODOC&amp;CC=JP&amp;NR=S58141470A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAMURA KUNIO</creatorcontrib><creatorcontrib>KITAZAWA KEIJI</creatorcontrib><title>FLEXIBLE DISC DRIVING DEVICE</title><description>PURPOSE:To rotate automatically a spindle motor for attachment and detachment of a disc, and to attach and detach the disc quickly, by rotating a DC motor, where the rise speed is made high only when a door mechanism in case of opening and closing a disc attaching and detaching aperture is opened and a motor on signal is outputted from a disc controller. CONSTITUTION:The motor on signal is generated by a retriggerrable one shot circuit 18 as a motor controlling circuit, At the access time, the one shot circuit 18 is triggerred retriggerrably by the trigger signal from a disc controller 12 to generate the motor on signal, and OR between this signal and the output signal of a switch 9 is operated by an OR gate 17 to control turning-on/off of a transistor 15. 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CONSTITUTION:The motor on signal is generated by a retriggerrable one shot circuit 18 as a motor controlling circuit, At the access time, the one shot circuit 18 is triggerred retriggerrably by the trigger signal from a disc controller 12 to generate the motor on signal, and OR between this signal and the output signal of a switch 9 is operated by an OR gate 17 to control turning-on/off of a transistor 15. That is, a DC motor 14 is rotated when the motor on signal or an output signal related to opening of a door mechanism 8 from the switch 9 is obtained in the side of a disc device 13.</abstract><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 FLEXIBLE DISC DRIVING DEVICE
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