DE3784295D1 - Digitales servo-system fuer den antriebsmotor eines videorecorders. - Google Patents

Digitales servo-system fuer den antriebsmotor eines videorecorders.

Info

Publication number
DE3784295D1
DE3784295D1 DE8787308668T DE3784295T DE3784295D1 DE 3784295 D1 DE3784295 D1 DE 3784295D1 DE 8787308668 T DE8787308668 T DE 8787308668T DE 3784295 T DE3784295 T DE 3784295T DE 3784295 D1 DE3784295 D1 DE 3784295D1
Authority
DE
Germany
Prior art keywords
drive motor
video recorder
servo system
digital servo
digital
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8787308668T
Other languages
English (en)
Other versions
DE3784295T2 (de
Inventor
Kenji Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE3784295D1 publication Critical patent/DE3784295D1/de
Publication of DE3784295T2 publication Critical patent/DE3784295T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/4673—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/903—Protective, e.g. voltage or current limit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/912—Pulse or frequency counter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/915—Sawtooth or ramp waveform generator
DE8787308668T 1986-09-30 1987-09-30 Digitales servo-system fuer den antriebsmotor eines videorecorders. Expired - Fee Related DE3784295T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61231719A JPS6385910A (ja) 1986-09-30 1986-09-30 デジタルサ−ボ装置

Publications (2)

Publication Number Publication Date
DE3784295D1 true DE3784295D1 (de) 1993-04-01
DE3784295T2 DE3784295T2 (de) 1993-06-09

Family

ID=16927947

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787308668T Expired - Fee Related DE3784295T2 (de) 1986-09-30 1987-09-30 Digitales servo-system fuer den antriebsmotor eines videorecorders.

Country Status (6)

Country Link
US (1) US4827201A (de)
EP (1) EP0262952B1 (de)
JP (1) JPS6385910A (de)
KR (1) KR920001360B1 (de)
CN (1) CN1006257B (de)
DE (1) DE3784295T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0167891B1 (ko) * 1992-04-06 1999-03-20 강진구 디스크 시스템의 조기 브레이크 구동방법
KR0141724B1 (ko) * 1995-01-07 1998-07-15 이헌조 브이씨알의 서보 제어장치
KR0177995B1 (ko) * 1995-12-26 1999-05-15 김광호 브러쉬리스 모터의 기동회로 및 방법
EP2190162B1 (de) * 2007-09-03 2020-02-12 ZTE Corporation Verfahren und einrichtung zur decodierung durch verwendung von wlsb bei der robusten header-komprimierung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433983A (en) * 1977-08-22 1979-03-13 Toshiba Corp Digital servo device
JPS5447610A (en) * 1977-09-21 1979-04-14 Toshiba Corp Digital servo apparatus
JPS5762426A (en) * 1980-10-01 1982-04-15 Matsushita Electric Ind Co Ltd Speed controller
JPH0642731B2 (ja) * 1984-12-27 1994-06-01 株式会社東芝 ビデオテ−プレコ−ダの高速再生装置
CA1270946A (en) * 1985-07-23 1990-06-26 Mitsugu Yoshihiro Capstan servo circuit

Also Published As

Publication number Publication date
CN1006257B (zh) 1989-12-27
KR920001360B1 (ko) 1992-02-11
DE3784295T2 (de) 1993-06-09
EP0262952A3 (en) 1990-05-16
CN87107593A (zh) 1988-07-13
EP0262952A2 (de) 1988-04-06
JPS6385910A (ja) 1988-04-16
US4827201A (en) 1989-05-02
KR880004454A (ko) 1988-06-04
EP0262952B1 (de) 1993-02-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee