BR7907411A - Aparelho e processo para girar um disco de armazenamento de informacao em relacao a um transdutor e aparelho para registrar informacao sobre um disco de informacao - Google Patents

Aparelho e processo para girar um disco de armazenamento de informacao em relacao a um transdutor e aparelho para registrar informacao sobre um disco de informacao

Info

Publication number
BR7907411A
BR7907411A BR7907411A BR7907411A BR7907411A BR 7907411 A BR7907411 A BR 7907411A BR 7907411 A BR7907411 A BR 7907411A BR 7907411 A BR7907411 A BR 7907411A BR 7907411 A BR7907411 A BR 7907411A
Authority
BR
Brazil
Prior art keywords
information
disc
velocity signal
appliance
radius
Prior art date
Application number
BR7907411A
Other languages
English (en)
Inventor
F Somers
J Winslow
Original Assignee
Mca Disco Vision
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25504381&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR7907411(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mca Disco Vision filed Critical Mca Disco Vision
Publication of BR7907411A publication Critical patent/BR7907411A/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Control Of Electric Motors In General (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
BR7907411A 1978-11-16 1979-11-14 Aparelho e processo para girar um disco de armazenamento de informacao em relacao a um transdutor e aparelho para registrar informacao sobre um disco de informacao BR7907411A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/961,362 US4190860A (en) 1978-11-16 1978-11-16 Digital method and apparatus for rotating an information storage disc

Publications (1)

Publication Number Publication Date
BR7907411A true BR7907411A (pt) 1980-07-22

Family

ID=25504381

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7907411A BR7907411A (pt) 1978-11-16 1979-11-14 Aparelho e processo para girar um disco de armazenamento de informacao em relacao a um transdutor e aparelho para registrar informacao sobre um disco de informacao

Country Status (10)

Country Link
US (1) US4190860A (pt)
EP (1) EP0011493B1 (pt)
JP (1) JPS55135368A (pt)
AT (1) ATE6447T1 (pt)
AU (1) AU532548B2 (pt)
BR (1) BR7907411A (pt)
CA (1) CA1124395A (pt)
DE (1) DE2966730D1 (pt)
HK (1) HK49386A (pt)
MY (1) MY8700024A (pt)

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JPS5625264A (en) * 1979-08-06 1981-03-11 Victor Co Of Japan Ltd Rotation contrl system for driving motor of recorder for equal line speed information recording medium disk
US4296446A (en) * 1979-11-15 1981-10-20 Rca Corporation Motor speed control circuit
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US4388713A (en) * 1979-12-27 1983-06-14 Victor Company Of Japan, Ltd. Rotation control system in a rotary recording medium reproducing apparatus
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EP0096164B1 (en) * 1982-06-15 1987-08-26 Kabushiki Kaisha Toshiba Pulse-width modulation circuit
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JPS5990262A (ja) * 1982-11-15 1984-05-24 Nippon Gakki Seizo Kk デイスクの再生装置
JPS609057U (ja) * 1983-03-31 1985-01-22 横河・ヒユ−レツト・パツカ−ド株式会社 デイスク駆動装置
JPS59185071A (ja) * 1983-04-04 1984-10-20 Hitachi Ltd 情報記録デイスクの再生速度制御装置
JPH0812743B2 (ja) * 1983-06-30 1996-02-07 株式会社東芝 ディスク装置
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JPS60195771A (ja) * 1984-03-16 1985-10-04 Pioneer Electronic Corp 記録ディスク回転駆動制御装置
US4566224A (en) * 1984-10-24 1986-01-28 Rca Corporation Lapping apparatus
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US4691310A (en) * 1985-08-09 1987-09-01 Rca Corporation Compact disk read only memory recording system with speed control
JPS6254868A (ja) * 1985-09-03 1987-03-10 Victor Co Of Japan Ltd 回転記録媒体の回転数制御装置
US4799112A (en) * 1987-02-19 1989-01-17 Magnetic Peripherals Inc. Method and apparatus for recording data
NL8701448A (nl) * 1987-06-22 1989-01-16 Philips Nv Werkwijze en inrichting voor het met een stralingsbundel aftasten van een roterende registratiedrager.
US4839877A (en) * 1987-10-02 1989-06-13 International Business Machines Corporation Rotational position controls for optical disk players using removable disks
BR8807909A (pt) * 1988-06-29 1991-04-02 Larry D Goddard Aparelhagem para armazenagem e recuperacao de imagens
US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
US6141300A (en) * 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5182741A (en) * 1989-08-25 1993-01-26 Sharp Kabushiki Kaisha Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US6069857A (en) * 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
US5729511A (en) * 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
US5537379A (en) * 1991-05-10 1996-07-16 Discovision Associates Optical data storage and retrieval system and method
US5258876A (en) * 1991-09-16 1993-11-02 Seagate Technology, Inc. Zone bit recording with write compensation
JP2583193B2 (ja) 1991-12-23 1997-02-19 ニンブス・コミュニケーションズ・インターナショナル・リミテッド ディスク記録システム、およびそのようなディスク記録システムにおいてターンテーブルの回転を制御する方法
US5894468A (en) * 1994-05-06 1999-04-13 Discovision Associates Data recovery with differentiation and partial integration stages to eliminate noises and DC offset level
US5790495A (en) 1994-05-06 1998-08-04 Discovision Associates Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component
BE1008963A3 (nl) * 1994-11-18 1996-10-01 Philips Electronics Nv Schijfvormige registratiedrager, alsmede opteken- en/of uitleesinrichting voor optekening/uitlezing van informatie op/van de registratiedrager.
US5590102A (en) * 1995-01-12 1996-12-31 Discovision Associates Recording informatioin on an optical disc without using pre-manufactured tracks
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5748578A (en) * 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US5920539A (en) * 1995-01-25 1999-07-06 Discovision Associates Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
US6091684A (en) * 1995-01-25 2000-07-18 Discovision Associates Optical disc system and method for changing the rotational rate of an information storage medium
US5978329A (en) * 1995-06-07 1999-11-02 Discovision Associates Technique for closed loop servo operation in optical disc tracking control
CN1077715C (zh) * 1995-12-06 2002-01-09 迪维安公司 聚焦控制的装置和方法
US5689485A (en) * 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
US5808990A (en) * 1996-12-17 1998-09-15 Cinram, Inc. Method and apparatus for controlling the linear velocity between an optical head and a rotation disk
US8077569B2 (en) * 2008-05-05 2011-12-13 Mediatek Inc. Methods and devices for controlling access to an optical disc
US9025273B1 (en) * 2013-08-28 2015-05-05 Western Digital Technologies, Inc. Disk drive employing digital accumulators to limit velocity and/or acceleration of microactuator
GB2585328B (en) * 2018-12-14 2021-07-21 Darkvision Tech Inc Correcting for eccentricity of acoustic sensors in wells and pipes

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US2113226A (en) * 1935-05-08 1938-04-05 Rca Corp Sound recording and reproducing system
US2901737A (en) * 1955-11-01 1959-08-25 Sperry Rand Corp Disk recording compensating devices
DE1562038B2 (de) * 1968-02-13 1971-05-13 Telefunken Patentverwertungsgesell schaft mbH, 790OUIm System zur aufzeichnung und abtastung von bildsignalen und der bildwechselfrequenz entsprechenden impulsen unter ver wendung eines plattenfoermigen aufzeichnungstraegers
JPS5147528B2 (pt) * 1972-05-20 1976-12-15
DE2257817A1 (de) * 1972-11-25 1974-05-30 Hubertus Wentzell Aufzeichnungs- und wiedergabeverfahren fuer platten-informationstraeger
US3826965A (en) * 1972-11-29 1974-07-30 Ibm Constant tangential velocity motor control for a disc recording system
JPS5841710B2 (ja) * 1973-03-16 1983-09-13 ソニー株式会社 ジヨウホウシンゴウキロクホウホウ
US4118734A (en) * 1974-02-14 1978-10-03 U.S. Philips Corporation Optical videodisc with variable width tracks
DE2521821A1 (de) * 1975-05-16 1976-11-25 Bosch Gmbh Robert Videoplattengeraet
NL7612070A (nl) * 1975-10-31 1977-05-03 Hitachi Ltd Inrichting voor het uitlezen van informatie.
JPS5363002A (en) * 1976-11-18 1978-06-06 Sony Corp Signal recording system and disk type medium for recording signal
DE2811761A1 (de) * 1978-03-17 1979-09-20 Wilhelm Dr Ing Lepper Verfahren zur aufnahme und wiedergabe von schallaufzeichnungen fuer schallplatten und einrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
JPH0152826B2 (pt) 1989-11-10
EP0011493A1 (en) 1980-05-28
EP0011493B1 (en) 1984-02-29
AU5284679A (en) 1980-05-22
CA1124395A (en) 1982-05-25
MY8700024A (en) 1987-12-31
US4190860A (en) 1980-02-26
DE2966730D1 (en) 1984-04-05
ATE6447T1 (de) 1984-03-15
AU532548B2 (en) 1983-10-06
JPS55135368A (en) 1980-10-22
HK49386A (en) 1986-07-11

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19941114