WO2004061830A3 - Improved optical storage device - Google Patents

Improved optical storage device Download PDF

Info

Publication number
WO2004061830A3
WO2004061830A3 PCT/GB2003/005712 GB0305712W WO2004061830A3 WO 2004061830 A3 WO2004061830 A3 WO 2004061830A3 GB 0305712 W GB0305712 W GB 0305712W WO 2004061830 A3 WO2004061830 A3 WO 2004061830A3
Authority
WO
WIPO (PCT)
Prior art keywords
power source
storage device
optical storage
driving means
improved optical
Prior art date
Application number
PCT/GB2003/005712
Other languages
French (fr)
Other versions
WO2004061830A2 (en
Inventor
David Lockwood
Christopher Perrott
Original Assignee
Infinite Data Storage Ltd
David Lockwood
Christopher Perrott
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 Infinite Data Storage Ltd, David Lockwood, Christopher Perrott filed Critical Infinite Data Storage Ltd
Priority to AU2003298450A priority Critical patent/AU2003298450A1/en
Priority to GB0513095A priority patent/GB2412229B/en
Publication of WO2004061830A2 publication Critical patent/WO2004061830A2/en
Publication of WO2004061830A3 publication Critical patent/WO2004061830A3/en

Links

Classifications

    • 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
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • 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
    • 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
    • G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Power Sources (AREA)

Abstract

An optical data storage device and method for operating such a device. The device has means for drawing current from an internal power source and an external power source and is also provided with switching means that switches the device between a first mode, where the internal power source is electrically connected to power driving means, and a second mode where an external power source is electrically connected to power driving means. The device has power driving means which receives power at a lower voltage rating from the internal power source than when attached to the external power source. This feature improves the electrical efficiency of the device.
PCT/GB2003/005712 2003-01-04 2003-12-24 Improved optical storage device WO2004061830A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003298450A AU2003298450A1 (en) 2003-01-04 2003-12-24 Improved optical storage device
GB0513095A GB2412229B (en) 2003-01-04 2003-12-24 Improved optical storage device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0300173.2A GB0300173D0 (en) 2003-01-04 2003-01-04 Improved optical storage device
GB0300173.2 2003-01-04

Publications (2)

Publication Number Publication Date
WO2004061830A2 WO2004061830A2 (en) 2004-07-22
WO2004061830A3 true WO2004061830A3 (en) 2004-11-18

Family

ID=9950683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/005712 WO2004061830A2 (en) 2003-01-04 2003-12-24 Improved optical storage device

Country Status (3)

Country Link
AU (1) AU2003298450A1 (en)
GB (3) GB0300173D0 (en)
WO (1) WO2004061830A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006236530A (en) * 2005-02-28 2006-09-07 Sanyo Electric Co Ltd Optical disk recording/playback apparatus
US8362757B2 (en) 2009-06-10 2013-01-29 Microchip Technology Incorporated Data retention secondary voltage regulator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323218A (en) * 1997-03-12 1998-09-16 Logic I O Limited Portable hard drive with hinged electronic card
JP2000222077A (en) * 1999-02-02 2000-08-11 Matsushita Electric Ind Co Ltd Optical disk unit
WO2000065590A1 (en) * 1999-04-21 2000-11-02 Seagate Technology Llc Dual mode disc drive and method
US6262545B1 (en) * 2000-04-24 2001-07-17 International Business Machines Corporation Dual speed motor drive circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2531847B2 (en) * 1990-09-27 1996-09-04 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン Optical disk drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323218A (en) * 1997-03-12 1998-09-16 Logic I O Limited Portable hard drive with hinged electronic card
JP2000222077A (en) * 1999-02-02 2000-08-11 Matsushita Electric Ind Co Ltd Optical disk unit
WO2000065590A1 (en) * 1999-04-21 2000-11-02 Seagate Technology Llc Dual mode disc drive and method
US6262545B1 (en) * 2000-04-24 2001-07-17 International Business Machines Corporation Dual speed motor drive circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) *

Also Published As

Publication number Publication date
GB2412229A (en) 2005-09-21
AU2003298450A1 (en) 2004-07-29
GB2420906B (en) 2006-11-15
GB2412229B (en) 2006-05-10
WO2004061830A2 (en) 2004-07-22
GB2420906A8 (en) 2006-11-28
AU2003298450A8 (en) 2004-07-29
GB2412229A8 (en) 2006-07-17
GB2420906A (en) 2006-06-07
GB0300173D0 (en) 2003-02-05
GB0513095D0 (en) 2005-08-03
GB0601777D0 (en) 2006-03-08

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