GB2154030B - Speed and tracking control - Google Patents

Speed and tracking control

Info

Publication number
GB2154030B
GB2154030B GB08501465A GB8501465A GB2154030B GB 2154030 B GB2154030 B GB 2154030B GB 08501465 A GB08501465 A GB 08501465A GB 8501465 A GB8501465 A GB 8501465A GB 2154030 B GB2154030 B GB 2154030B
Authority
GB
United Kingdom
Prior art keywords
speed
tracking control
tracking
control
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
GB08501465A
Other languages
English (en)
Other versions
GB2154030A (en
GB8501465D0 (en
Inventor
Keiichi Matsumoto
Yoshio 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 GB8501465D0 publication Critical patent/GB8501465D0/en
Publication of GB2154030A publication Critical patent/GB2154030A/en
Application granted granted Critical
Publication of GB2154030B publication Critical patent/GB2154030B/en
Expired 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
GB08501465A 1984-01-20 1985-01-21 Speed and tracking control Expired GB2154030B (en)

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 (3)

Publication Number Publication Date
GB8501465D0 GB8501465D0 (en) 1985-02-20
GB2154030A GB2154030A (en) 1985-08-29
GB2154030B true GB2154030B (en) 1987-03-11

Family

ID=11711141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08501465A Expired GB2154030B (en) 1984-01-20 1985-01-21 Speed and tracking control

Country Status (3)

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

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
JP4929560B2 (ja) * 2001-08-28 2012-05-09 三菱電機株式会社 操作装置及びそれを備えたエレベータ乗場装置及び乗りかご
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
DE3348177C2 (enrdf_load_stackoverflow) * 1982-10-15 1989-07-20 Pioneer Electronic Corp., Tokio/Tokyo, Jp

Also Published As

Publication number Publication date
JPS60154358A (ja) 1985-08-14
JPH0330942B2 (enrdf_load_stackoverflow) 1991-05-01
DE3501811A1 (de) 1985-08-08
GB2154030A (en) 1985-08-29
GB8501465D0 (en) 1985-02-20
DE3501811C2 (enrdf_load_stackoverflow) 1988-07-28

Similar Documents

Publication Publication Date Title
GB2167563B (en) Position and speed sensors
GB2156978B (en) Servo tracking system
GB8525559D0 (en) Control systems
DE3566138D1 (en) Override speed control
GB8524743D0 (en) Control control
GB8512546D0 (en) Speed control device
GB8406523D0 (en) Tracking control arrangements
GB8525096D0 (en) Speed control unit
GB8505043D0 (en) Speed control apparatus
DE3570789D1 (en) Tracking control system
GB8511252D0 (en) Speed control apparatus
GB2167881B (en) Idling speed control
GB8516914D0 (en) Speed regulating means
GB2154030B (en) Speed and tracking control
GB8607344D0 (en) Aerodynamic/hydrodynamic control devices
GB8522599D0 (en) Speed governor
EP0174095A3 (en) Tracking control apparatus
GB8612845D0 (en) Speed control
GB8526364D0 (en) Intake-air control system
GB8526365D0 (en) Intake-air control system
GB8505146D0 (en) Speed control apparatus
GB2166891B (en) Velocity control system
GB8526953D0 (en) Speed control actuator
GB2176248B (en) Turbine control
GB2162387B (en) Speed control

Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950121