AU7575700A - Disk drive with multiple heads for reduced track access time - Google Patents

Disk drive with multiple heads for reduced track access time

Info

Publication number
AU7575700A
AU7575700A AU75757/00A AU7575700A AU7575700A AU 7575700 A AU7575700 A AU 7575700A AU 75757/00 A AU75757/00 A AU 75757/00A AU 7575700 A AU7575700 A AU 7575700A AU 7575700 A AU7575700 A AU 7575700A
Authority
AU
Australia
Prior art keywords
disk drive
access time
multiple heads
track access
reduced track
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.)
Abandoned
Application number
AU75757/00A
Inventor
D. Christopher Ohly
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU7575700A publication Critical patent/AU7575700A/en
Abandoned 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
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
    • 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
    • G11B21/003—Disposition of fixed heads, e.g. for scanning, selecting or following of tracks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5569—Track change, selection or acquisition by displacement of the head across disk tracks details of specially adapted mobile parts, e.g. electromechanical control devices
    • G11B5/5578—Multiple actuators addressing the same disk, e.g. to improve data rate or access rate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
AU75757/00A 1999-09-09 2000-09-08 Disk drive with multiple heads for reduced track access time Abandoned AU7575700A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US39225199A 1999-09-09 1999-09-09
US09392251 1999-09-09
PCT/US2000/024566 WO2001018804A1 (en) 1999-09-09 2000-09-08 Disk drive with multiple heads for reduced track access time

Publications (1)

Publication Number Publication Date
AU7575700A true AU7575700A (en) 2001-04-10

Family

ID=23549883

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75757/00A Abandoned AU7575700A (en) 1999-09-09 2000-09-08 Disk drive with multiple heads for reduced track access time

Country Status (2)

Country Link
AU (1) AU7575700A (en)
WO (1) WO2001018804A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20010634A1 (en) * 2001-03-23 2002-09-23 Alessio Gerotto INTEGRATED ELECTRONIC DEVICE EQUIPPED WITH MANY FIXED HEADS FOR READING AND WRITING OF DATA DUI MAGNETIC DUPPORTS COSTITUEN
WO2003044795A1 (en) * 2001-11-21 2003-05-30 Flueeli Adolf Data support

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772666A (en) * 1972-04-03 1973-11-13 Data General Corp Interlaced magnetic heads
US4270154A (en) * 1978-03-01 1981-05-26 Crawford John E Head selection technique
JPS57186215A (en) * 1981-05-11 1982-11-16 Mitsubishi Electric Corp Magnetic disc device
US4577240A (en) * 1982-11-15 1986-03-18 Digital Engineering, Ltd. Multiple zone multiple disk video recording system
JPS6413272A (en) * 1987-07-03 1989-01-18 Nec Software Ltd Magnetic disk device having plural sets of head assembly
US4972396A (en) * 1988-10-24 1990-11-20 Honeywell Inc. Multiple independently positionable recording-reading head disk system
JPH02128301A (en) * 1988-11-08 1990-05-16 Nec Ic Microcomput Syst Ltd Disk unit
US5223993A (en) * 1989-11-03 1993-06-29 Conner Peripherals, Inc. Multiple actuator disk drive
JPH03263659A (en) * 1990-03-14 1991-11-25 Fujitsu Ltd Magnetic disk device
JPH04368678A (en) * 1991-06-18 1992-12-21 Nec Software Kansai Ltd Magnetic disk device
US5341351A (en) * 1992-10-08 1994-08-23 International Business Machines Corporation Method and means for optimally accessing data residing on dual actuator DASDs
JPH08124334A (en) * 1994-10-26 1996-05-17 Hitachi Ltd Seek time eliminating type magnetic disk device
US5606474A (en) * 1995-01-17 1997-02-25 Latsu, Inc. High density disk drive with accelerated disk access

Also Published As

Publication number Publication date
WO2001018804A9 (en) 2002-10-03
WO2001018804A1 (en) 2001-03-15
WO2001018804B1 (en) 2001-07-12

Similar Documents

Publication Publication Date Title
AU1104600A (en) Disk drive enclosure
GB2363511B (en) Advanced servo writing method for hard disc drives
AU2880100A (en) Data storage media
AU2195201A (en) Disk storage system and mounting system for head/disk assembly
AU7316500A (en) Holding member for information storage disk and information storage disk drive device
AU4065600A (en) High track density magnetic recording head
AU3274999A (en) Storing case for recording medium disc
SG71912A1 (en) Dual mode auto-balancer for DVD drives
AU6019400A (en) Optical disk drive unit
AU6152300A (en) Data allocation in dvd recording
GB2347552B (en) Disk drive
AU6207300A (en) Servo write head
AU1418201A (en) Cleaning disc, magneto-optical disc apparatus and recording/reproducing apparatus
AU2003244094A1 (en) Hologram recording/reproducing system
AU9021098A (en) Section access for ide or scsi hard drives
AU7575700A (en) Disk drive with multiple heads for reduced track access time
SG101476A1 (en) Servo system with runout compensation for disk drive
AU1658101A (en) Appended data recording on magnetic tape
AU6409898A (en) External data storage drive for computer
AU1093801A (en) Architecture for a hard disk drive write amplifier circuit with programmable controls
EP1079380A3 (en) Information recording medium
AU6245998A (en) Deployable drive for protruding rotatable data storage media
AU2089200A (en) Drawer for a cd drive
GB9907264D0 (en) Disk drive with just-in-time data seek
AU6675298A (en) Thin-film magnetic recording head manufacture

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase