AU1969901A - Method and format for reading and writing in a multilevel optical data system - Google Patents

Method and format for reading and writing in a multilevel optical data system

Info

Publication number
AU1969901A
AU1969901A AU19699/01A AU1969901A AU1969901A AU 1969901 A AU1969901 A AU 1969901A AU 19699/01 A AU19699/01 A AU 19699/01A AU 1969901 A AU1969901 A AU 1969901A AU 1969901 A AU1969901 A AU 1969901A
Authority
AU
Australia
Prior art keywords
writing
format
reading
optical data
data system
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
AU19699/01A
Inventor
David Lee
Gregory D Lewis
Yi Ling
Stephen Pope
Steven R. Spielman
Terry Wong
Jonathan A. Zingman
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.)
Calimetrics Inc
Original Assignee
Calimetrics 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 US09/476,395 external-priority patent/US6771570B1/en
Application filed by Calimetrics Inc filed Critical Calimetrics Inc
Publication of AU1969901A publication Critical patent/AU1969901A/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00745—Sectoring or header formats within a track
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1267—Address data
    • G11B2020/1268—Address in pregroove [ADIP] information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1275—Calibration data, e.g. specific training patterns for adjusting equalizer settings or other recording or playback parameters
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1291—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting serves a specific purpose
    • G11B2020/1292—Enhancement of the total storage capacity
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1291—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting serves a specific purpose
    • G11B2020/1294—Increase of the access speed
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
AU19699/01A 1999-12-30 2000-10-17 Method and format for reading and writing in a multilevel optical data system Abandoned AU1969901A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/476,395 US6771570B1 (en) 1999-02-18 1999-12-30 Method and format for reading and writing in a multilevel optical data system
US09476395 1999-12-30
PCT/US2000/041273 WO2001050461A1 (en) 1999-12-30 2000-10-17 Method and format for reading and writing in a multilevel optical data system

Publications (1)

Publication Number Publication Date
AU1969901A true AU1969901A (en) 2001-07-16

Family

ID=23891655

Family Applications (1)

Application Number Title Priority Date Filing Date
AU19699/01A Abandoned AU1969901A (en) 1999-12-30 2000-10-17 Method and format for reading and writing in a multilevel optical data system

Country Status (2)

Country Link
AU (1) AU1969901A (en)
WO (1) WO2001050461A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7046610B2 (en) * 2002-04-24 2006-05-16 Ricoh Company, Ltd. Recording medium suitable for recording/reproducing multi-level data
US7190653B2 (en) 2002-10-21 2007-03-13 Ricoh Company, Ltd. Data recording/reproducing device
CN102056281A (en) * 2009-11-10 2011-05-11 中兴通讯股份有限公司 Method and device for realizing automatic gain control of packet service

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2625609B2 (en) * 1991-07-10 1997-07-02 インターナショナル・ビジネス・マシーンズ・コーポレイション Disk storage device
US5537382A (en) * 1994-11-22 1996-07-16 Optex Corporation Partial response coding for a multi-level optical recording channel
DE69621519T2 (en) * 1995-06-22 2003-07-03 Matsushita Electric Ind Co Ltd Maximum probability decoding method and apparatus for reproducing digital information

Also Published As

Publication number Publication date
WO2001050461A1 (en) 2001-07-12

Similar Documents

Publication Publication Date Title
AU2001253136A1 (en) A system and method for accessing data in disparate information sources
AU6392000A (en) System and method for navigating in a digital information environment
GB2359919B (en) Apparatus and method for writing and reproducing data
AU2452001A (en) A method and system for modeling data
AU2325800A (en) Data reproducing device, data reproducing method, and information terminal
GB2302434B (en) Data symbol reading system
AU2001237506A1 (en) Device for reading, recording and restoring digital data in copy-protection system for said data
AU6472899A (en) Embedding supplemental data in an information signal
AU2001281088A1 (en) System and method for implementing a redundant data storage architecture
AU1774501A (en) Three dimensional data storage device and method for reading
AU7897300A (en) Data carrier and method for reading out information
AU1460301A (en) An arrangement for recording navigation information in a data recorder
AU1515000A (en) A method for writing data into data storage units
AU1517499A (en) Method and apparatus for content-linking supplemental information with time-sequence data
EP0986266A3 (en) Image memory device and writing/reading out method therefor
AU4037100A (en) Method and system for managing data in computer memory
AU2000266732A1 (en) Method and system for editing digital information using a comparison buffer
AU7843400A (en) Apparatus and method for reading/writing data from/to a storage device having multiple storage areas
AU6321396A (en) Method for optical data storage and optical data storage media
AU2001288290A1 (en) Apparatuses and methods for reading after writing in optical recording systems
AU1969901A (en) Method and format for reading and writing in a multilevel optical data system
SG80620A1 (en) Near-field optical storage medium and optical data storage system therefor
AU2000261468A1 (en) Data recording and reading method and device
HK1029210A1 (en) Optical information medium and method for recording optical information
AU2002220971A1 (en) Apparatus and method for reading data from a data carrier and data carrier for use in the apparatus and method

Legal Events

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