NL8700818A - Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen. - Google Patents

Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen. Download PDF

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Publication number
NL8700818A
NL8700818A NL8700818A NL8700818A NL8700818A NL 8700818 A NL8700818 A NL 8700818A NL 8700818 A NL8700818 A NL 8700818A NL 8700818 A NL8700818 A NL 8700818A NL 8700818 A NL8700818 A NL 8700818A
Authority
NL
Netherlands
Prior art keywords
signal
circuit
frequency
motor
phase
Prior art date
Application number
NL8700818A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL8700818A priority Critical patent/NL8700818A/nl
Priority to US07/094,575 priority patent/US4819221A/en
Priority to EP88200633A priority patent/EP0286179B1/en
Priority to JP63082374A priority patent/JPS63257957A/ja
Priority to DE8888200633T priority patent/DE3872914T2/de
Priority to AT88200633T priority patent/ATE78626T1/de
Priority to KR1019880003866A priority patent/KR880013148A/ko
Publication of NL8700818A publication Critical patent/NL8700818A/nl

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/20Driving; Starting; Stopping; Control thereof
    • G11B19/28Speed controlling, regulating, or indicating
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/20Driving; Starting; Stopping; Control thereof

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Control Of Electric Motors In General (AREA)
  • Optical Recording Or Reproduction (AREA)
NL8700818A 1987-04-08 1987-04-08 Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen. NL8700818A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL8700818A NL8700818A (nl) 1987-04-08 1987-04-08 Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen.
US07/094,575 US4819221A (en) 1987-04-08 1987-09-09 Apparatus for reading record carriers having substantially concentric or spiral tracks
EP88200633A EP0286179B1 (en) 1987-04-08 1988-04-05 Apparatus for reading record carriers having substantially concentric or spiral tracks
JP63082374A JPS63257957A (ja) 1987-04-08 1988-04-05 記録担体読取装置
DE8888200633T DE3872914T2 (de) 1987-04-08 1988-04-05 Geraet zur ablesung von aufzeichnungstraegern mit im wesentlichen konzentrischen oder spiralen spuren.
AT88200633T ATE78626T1 (de) 1987-04-08 1988-04-05 Geraet zur ablesung von aufzeichnungstraegern mit im wesentlichen konzentrischen oder spiralen spuren.
KR1019880003866A KR880013148A (ko) 1987-04-08 1988-04-07 기록 캐리어 판독장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700818 1987-04-08
NL8700818A NL8700818A (nl) 1987-04-08 1987-04-08 Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen.

Publications (1)

Publication Number Publication Date
NL8700818A true NL8700818A (nl) 1988-11-01

Family

ID=19849823

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8700818A NL8700818A (nl) 1987-04-08 1987-04-08 Inrichting voor het uitlezen van registratiedragers met in hoofdzaak koncentrische of spiraalvormige sporen.

Country Status (7)

Country Link
US (1) US4819221A (ko)
EP (1) EP0286179B1 (ko)
JP (1) JPS63257957A (ko)
KR (1) KR880013148A (ko)
AT (1) ATE78626T1 (ko)
DE (1) DE3872914T2 (ko)
NL (1) NL8700818A (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07106549B2 (ja) * 1988-10-12 1995-11-15 不二空機株式会社 インパクトレンチの締付制御装置
JP2737216B2 (ja) * 1989-03-15 1998-04-08 ソニー株式会社 ビデオディスクプレーヤ
JPH0369061A (ja) * 1989-08-07 1991-03-25 Pioneer Electron Corp 光ディスク記録再生装置のスピンドル制御装置
JPH0369062A (ja) * 1989-08-07 1991-03-25 Pioneer Electron Corp 光ディスク記録再生装置のスピンドル制御装置
JP2526113Y2 (ja) * 1992-07-24 1997-02-19 ミツミ電機株式会社 ディスク再生装置
US5633570A (en) * 1996-02-12 1997-05-27 Seagate Technology, Inc. Position feedback control of brushless DC motors from standstill
KR100416593B1 (ko) * 2001-03-30 2004-02-05 삼성전자주식회사 편심에러를 보상하는 광디스크 재생장치.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521821A1 (de) * 1975-05-16 1976-11-25 Bosch Gmbh Robert Videoplattengeraet
JPS6031428Y2 (ja) * 1975-08-28 1985-09-19 パイオニア株式会社 モ−タサ−ボ回路
GB1572346A (en) * 1976-03-19 1980-07-30 Rca Corp Velocity and phase control for a disc recording and reproducing apparatus
US4313191A (en) * 1978-06-30 1982-01-26 Discovision Associates Recording medium having a pilot signal with an aligned phase angle in adjacent tracks
JPS5764371A (en) * 1980-09-30 1982-04-19 Toshiba Corp Rotation control system of disk recording medium
US4481615A (en) * 1981-02-02 1984-11-06 Sanyo Electric Co., Ltd. Motor controlling circuit of reproducing apparatus and method of controlling
US4710825A (en) * 1983-05-26 1987-12-01 Nippon Kogaku K.K. Disc recording system with speed control
JPS60113680A (ja) * 1983-11-22 1985-06-20 Victor Co Of Japan Ltd モ−タの回転制御装置
JPS60195772A (ja) * 1984-03-16 1985-10-04 Pioneer Electronic Corp 記録ディスク回転駆動制御装置

Also Published As

Publication number Publication date
DE3872914D1 (de) 1992-08-27
ATE78626T1 (de) 1992-08-15
EP0286179B1 (en) 1992-07-22
KR880013148A (ko) 1988-11-30
US4819221A (en) 1989-04-04
EP0286179A1 (en) 1988-10-12
DE3872914T2 (de) 1993-02-25
JPS63257957A (ja) 1988-10-25

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed