DE3501811C2 - - Google Patents

Info

Publication number
DE3501811C2
DE3501811C2 DE19853501811 DE3501811A DE3501811C2 DE 3501811 C2 DE3501811 C2 DE 3501811C2 DE 19853501811 DE19853501811 DE 19853501811 DE 3501811 A DE3501811 A DE 3501811A DE 3501811 C2 DE3501811 C2 DE 3501811C2
Authority
DE
Germany
Prior art keywords
signal
servo control
detector
circuit
control device
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
Application number
DE19853501811
Other languages
German (de)
English (en)
Other versions
DE3501811A1 (de
Inventor
Keiichi Tokorozawa Saitama Jp Matsumoto
Yoshio Kawagoe Saitama Jp Aoyagi
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of DE3501811A1 publication Critical patent/DE3501811A1/de
Application granted granted Critical
Publication of DE3501811C2 publication Critical patent/DE3501811C2/de
Granted legal-status Critical Current

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
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
DE19853501811 1984-01-20 1985-01-21 Informationswiedergabevorrichtung Granted DE3501811A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP909884A JPS60154358A (ja) 1984-01-20 1984-01-20 記録情報再生装置

Publications (2)

Publication Number Publication Date
DE3501811A1 DE3501811A1 (de) 1985-08-08
DE3501811C2 true DE3501811C2 (ja) 1988-07-28

Family

ID=11711141

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853501811 Granted DE3501811A1 (de) 1984-01-20 1985-01-21 Informationswiedergabevorrichtung

Country Status (3)

Country Link
JP (1) JPS60154358A (ja)
DE (1) DE3501811A1 (ja)
GB (1) GB2154030B (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619258A1 (de) * 1986-06-07 1987-12-10 Blaupunkt Werke Gmbh Compact disc (cd)-spieler
JPH0821214B2 (ja) * 1987-02-27 1996-03-04 パイオニア株式会社 デイスク再生方式
DE3732899A1 (de) * 1987-09-30 1989-04-20 Thomson Brandt Gmbh Spurregelkreis fuer eine optische abtastvorrichtung
JP2687452B2 (ja) * 1988-06-27 1997-12-08 富士通株式会社 ディスク装置
GB2310297B (en) * 1996-02-15 1998-12-16 Matsushita Electric Ind Co Ltd Motor control system
CN1240602C (zh) * 2001-08-28 2006-02-08 三菱电机株式会社 电梯操作装置和具有该装置的电梯乘口装置以及电梯厢
JP4951867B2 (ja) * 2005-03-16 2012-06-13 フジテック株式会社 エレベータのかご操作盤
JP4834436B2 (ja) * 2006-03-29 2011-12-14 株式会社日立製作所 エレベータかご内操作盤用スイッチボックス

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
JPS57191874A (en) * 1981-05-19 1982-11-25 Teac Co Reproducing device
DE3337474A1 (de) * 1982-10-15 1984-04-19 Pioneer Electronic Corp., Tokyo Plattenantriebssteuervorrichtung

Also Published As

Publication number Publication date
GB8501465D0 (en) 1985-02-20
GB2154030B (en) 1987-03-11
JPH0330942B2 (ja) 1991-05-01
JPS60154358A (ja) 1985-08-14
GB2154030A (en) 1985-08-29
DE3501811A1 (de) 1985-08-08

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8120 Willingness to grant licenses paragraph 23
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee