KR910008697A - 상회전기의 서보회로 - Google Patents

상회전기의 서보회로 Download PDF

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Publication number
KR910008697A
KR910008697A KR1019900016002A KR900016002A KR910008697A KR 910008697 A KR910008697 A KR 910008697A KR 1019900016002 A KR1019900016002 A KR 1019900016002A KR 900016002 A KR900016002 A KR 900016002A KR 910008697 A KR910008697 A KR 910008697A
Authority
KR
South Korea
Prior art keywords
rotor
phase
servo circuit
phase rotor
generator
Prior art date
Application number
KR1019900016002A
Other languages
English (en)
Other versions
KR100187907B1 (ko
Inventor
다쯔야 나라하라
요시떼루 가마따니
다까시 나까오
히로시 미요시
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR910008697A publication Critical patent/KR910008697A/ko
Application granted granted Critical
Publication of KR100187907B1 publication Critical patent/KR100187907B1/ko

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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G11B7/0031—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent using a rotating head, e.g. helicoidal recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Control Of Electric Motors In General (AREA)
  • Optical Head (AREA)

Abstract

내용 없음

Description

상회전기의 서보회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 상회전 서보회로의 계통도.
제2도는 본 발명의 상회전기 및 회전드럼의 개략도.
제3a 내지 3e도는 본 발명의 파형 설명도.

Claims (2)

  1. 회전체의 각 속도에 대해서 소정의 각속도로 회전하는 상회전기의 서보회로에 있어서, 상기 상회전기 및 회전체에 그 일부가 직선적으로 크기가 변화하는 아나로그 신호가 얻어지는 각도 검출수단을 설치하고, 이 각도 검출수단에서 얻어지는 아나로그 신호의 어느한편을 2치화한 2치신호로 다른 편의 아나로그 신호를 샘플링 한 샘플링치에 의거하여 상기 회전기를 서보하여 형성되는 것을 특징으로 하는 상회전기의 서보회로.
  2. 회전체의 각 속도에 대해서, 소정의 각속도로 회전하는 상회전기의 서보회로에 있어서, 상기 상회전기 및 회전체에 각각 펄스 발생기 및 주파수 발생기를 설치하여, 처음에 상기 상회전기를 상기 상회전기와 회전체의 펄스 발생기의 위상체에 의거해서 서보제어하여, 룩크 후에 상기 상회전기와 회전체와의 주파수 발생기의 위상차에 의거해서 서보 제어하여 형성이 되는 것을 특징으로 하는 상회전기의 서보회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900016002A 1989-10-16 1990-10-10 이미지 로테이터의 서보회로 KR100187907B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP268843 1989-10-16
JP1268843A JP2811816B2 (ja) 1989-10-16 1989-10-16 イメージローテータのサーボ回路

Publications (2)

Publication Number Publication Date
KR910008697A true KR910008697A (ko) 1991-05-31
KR100187907B1 KR100187907B1 (ko) 1999-06-01

Family

ID=17464041

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900016002A KR100187907B1 (ko) 1989-10-16 1990-10-10 이미지 로테이터의 서보회로

Country Status (5)

Country Link
US (1) US5155720A (ko)
EP (1) EP0424250B1 (ko)
JP (1) JP2811816B2 (ko)
KR (1) KR100187907B1 (ko)
DE (1) DE69024170T2 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194390B2 (ja) * 1991-08-09 2001-07-30 ソニー株式会社 光走査位置合わせ方法、光の集光装置、光記録方法および光記録装置
JPH05109092A (ja) * 1991-10-14 1993-04-30 Sony Corp 光テープ記録再生装置
US5524105A (en) * 1992-12-29 1996-06-04 Eastman Kodak Company Helical optical tape read/write system using at least one laser array
WO2007092785A2 (en) * 2006-02-02 2007-08-16 Otsi Holdings Llc Optical tape media, marking, systems, and apparatus and process for producing thereof
JP2011151154A (ja) 2010-01-20 2011-08-04 Fujitsu Ltd 逆流防止装置、電子装置および逆流防止装置の製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503058A (en) * 1967-03-06 1970-03-24 Bell Telephone Labor Inc Multiple memory synchronizing arrangement
US4163600A (en) * 1974-10-21 1979-08-07 Eli S. Jacobs Light beam scanner
US4495609A (en) * 1975-03-10 1985-01-22 Digital Recording Corporation Recording and playback system
US4669070A (en) * 1979-09-18 1987-05-26 Rca Corporation Signal format for optical tape record/playback system
US4661941A (en) * 1979-09-18 1987-04-28 Rca Corporation Optical video or data tape record and playback apparatus
US4633455A (en) * 1985-03-25 1986-12-30 Rca Corporation Headwheel for a multiple beam optical tape playback system
WO1987002499A1 (en) * 1985-10-10 1987-04-23 Opticon Technology Incorporated Apparatus for recording and reading optical data marks on an optical medium
US4815067A (en) * 1986-10-06 1989-03-21 Thorn Emi Plc. Optical rotary headwheel tape recording system
US4970707A (en) * 1987-09-04 1990-11-13 Hitachi, Ltd. Optical tape apparatus with a tracking control mechanism and/or a focusing control mechanism
JP2595599B2 (ja) * 1987-12-29 1997-04-02 ソニー株式会社 情報記録装置
US4939715A (en) * 1987-12-29 1990-07-03 Minnesota Mining And Manufacturing Company Tape scanning apparatus

Also Published As

Publication number Publication date
JP2811816B2 (ja) 1998-10-15
EP0424250A2 (en) 1991-04-24
EP0424250A3 (en) 1992-01-15
DE69024170T2 (de) 1996-05-02
US5155720A (en) 1992-10-13
DE69024170D1 (de) 1996-01-25
JPH03130935A (ja) 1991-06-04
KR100187907B1 (ko) 1999-06-01
EP0424250B1 (en) 1995-12-13

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