WO2002059887A3 - System and method for controlling an optical disk drive - Google Patents

System and method for controlling an optical disk drive Download PDF

Info

Publication number
WO2002059887A3
WO2002059887A3 PCT/US2002/002090 US0202090W WO02059887A3 WO 2002059887 A3 WO2002059887 A3 WO 2002059887A3 US 0202090 W US0202090 W US 0202090W WO 02059887 A3 WO02059887 A3 WO 02059887A3
Authority
WO
WIPO (PCT)
Prior art keywords
processor
interrupt
tasks
disc drive
time
Prior art date
Application number
PCT/US2002/002090
Other languages
French (fr)
Other versions
WO2002059887A9 (en
WO2002059887A2 (en
Inventor
Christopher J Turner
Ron J Kadlec
Charles R Watt
Hans B Wach
Original Assignee
Dataplay Inc
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
Priority claimed from US09/951,156 external-priority patent/US20020080698A1/en
Priority claimed from US09/951,337 external-priority patent/US6885620B2/en
Priority claimed from US09/951,339 external-priority patent/US6741530B2/en
Priority claimed from US09/951,332 external-priority patent/US7095685B2/en
Priority claimed from US09/951,333 external-priority patent/US20020131338A1/en
Priority claimed from US09/951,850 external-priority patent/US6977873B2/en
Priority claimed from US09/951,469 external-priority patent/US7038988B2/en
Priority claimed from US09/951,931 external-priority patent/US7116621B2/en
Priority claimed from US09/951,940 external-priority patent/US7054242B2/en
Priority claimed from US09/951,329 external-priority patent/US6958963B2/en
Priority claimed from US09/951,331 external-priority patent/US7057983B2/en
Priority claimed from US09/951,340 external-priority patent/US20020131354A1/en
Priority claimed from US09/951,947 external-priority patent/US6963524B2/en
Priority to AU2002241961A priority Critical patent/AU2002241961A1/en
Application filed by Dataplay Inc filed Critical Dataplay Inc
Publication of WO2002059887A2 publication Critical patent/WO2002059887A2/en
Publication of WO2002059887A3 publication Critical patent/WO2002059887A3/en
Publication of WO2002059887A9 publication Critical patent/WO2002059887A9/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
    • G11B7/08—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
    • 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
    • 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

A system, method, and apparatus for coordinating tasks in a control system for an optical disc drive for optical media with a pitted premastered area that cannot be overwritten and a grooved user-writeable area that can be overwritten. The optical disc drive includes a first processor operable to communicate with a second processor, wherein the first processor includes instructions for performing non-time-critical tasks, and the second processor includes instructions for performing time-critical tasks, such as reading from and writing to optical media in the disc drive. The first processor monitors the status of the time critical tasks in the second processor and transmits commands to perform operations in the second processor. The first processor also controls power mode, manages recovery from errors, controls focus, tracking/seeking, spin, physical sector address (PSA), a laser, adjusts gains, and monitor cartridge load/eject. The first processor sequences and monitors functions performed in the second processor and the second processor issues an interrupt when an error condition is detected in the second processor. The first processor detects the interrupt, and disables detecting further interrupts until the interrupt is serviced. Servicing the interrupt includes recording the error state and changing focus and tracking parameters based on the error condition detected. The first processor can be used to perform other tasks while it is waiting to receive a notice of a new command, a notify event, or a performance event.
PCT/US2002/002090 2001-01-25 2002-01-24 System and method for controlling an optical disk drive WO2002059887A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002241961A AU2002241961A1 (en) 2001-01-25 2002-01-24 System and method for controlling an optical disk drive

Applications Claiming Priority (28)

Application Number Priority Date Filing Date Title
US26435101P 2001-01-25 2001-01-25
US60/264,351 2001-01-25
US09/951,156 2001-09-10
US09/951,850 US6977873B2 (en) 2001-01-25 2001-09-10 System and method to adjust the level of re-calibration effort based on disc drive performance
US09/951,469 US7038988B2 (en) 2001-01-25 2001-09-10 System and method for controlling time critical operations in a control system for an optical disc drive
US09/951,329 2001-09-10
US09/951,931 US7116621B2 (en) 2001-01-25 2001-09-10 System and method for handling commands in an optical disc drive
US09/951,333 US20020131338A1 (en) 2001-01-25 2001-09-10 System and method for controlling operation of a disc drive for optical media with premastered and read/write sectors
US09/951,339 US6741530B2 (en) 2001-01-25 2001-09-10 Time critical and non-time critical tasks control system for an optical disk using first and second processors
US09/951,332 US7095685B2 (en) 2001-01-25 2001-09-10 System and method for detecting and recovering from an off-format state in an optical disc drive
US09/951,947 2001-09-10
US09/951,332 2001-09-10
US09/951,931 2001-09-10
US09/951,340 US20020131354A1 (en) 2001-01-25 2001-09-10 System and method for controlling laser power in an optical disc drive
US09/951,331 2001-09-10
US09/951,340 2001-09-10
US09/951,333 2001-09-10
US09/951,339 2001-09-10
US09/951,850 2001-09-10
US09/951,156 US20020080698A1 (en) 2000-11-07 2001-09-10 System and method for controlling spin speed of media in an optical disc drive
US09/951,337 US6885620B2 (en) 2001-01-25 2001-09-10 System and method for recovering from performance errors in an optical disc drive
US09/951,947 US6963524B2 (en) 2001-01-25 2001-09-10 System and method for controlling interrupts in a control system for an optical disc drive
US09/951,337 2001-09-10
US09/951,331 US7057983B2 (en) 2001-01-25 2001-09-10 System and method for controlling tracking and seeking in an optical disc drive
US09/951,329 US6958963B2 (en) 2001-01-25 2001-09-10 System and method for handling events in an optical disc drive
US09/951,469 2001-09-10
US09/951,940 2001-09-10
US09/951,940 US7054242B2 (en) 2001-01-25 2001-09-10 System and method for controlling focus in an optical disc drive

Publications (3)

Publication Number Publication Date
WO2002059887A2 WO2002059887A2 (en) 2002-08-01
WO2002059887A3 true WO2002059887A3 (en) 2003-12-18
WO2002059887A9 WO2002059887A9 (en) 2004-02-26

Family

ID=27585104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/002090 WO2002059887A2 (en) 2001-01-25 2002-01-24 System and method for controlling an optical disk drive

Country Status (2)

Country Link
AU (1) AU2002241961A1 (en)
WO (1) WO2002059887A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0517473A2 (en) * 1991-06-04 1992-12-09 Quantum Corporation Miniature disk drive having embedded sector servo with split data fields and automatic on-the-fly data block sequencing
US5630165A (en) * 1992-12-03 1997-05-13 Advanced Micro Devices, Inc. Servo system controlled by master and second processors through memory being accessed for read and write by processors in separate portions respectively

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0517473A2 (en) * 1991-06-04 1992-12-09 Quantum Corporation Miniature disk drive having embedded sector servo with split data fields and automatic on-the-fly data block sequencing
US5630165A (en) * 1992-12-03 1997-05-13 Advanced Micro Devices, Inc. Servo system controlled by master and second processors through memory being accessed for read and write by processors in separate portions respectively

Also Published As

Publication number Publication date
WO2002059887A9 (en) 2004-02-26
AU2002241961A1 (en) 2002-08-06
WO2002059887A2 (en) 2002-08-01

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