CA2472364A1 - A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof - Google Patents

A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof Download PDF

Info

Publication number
CA2472364A1
CA2472364A1 CA002472364A CA2472364A CA2472364A1 CA 2472364 A1 CA2472364 A1 CA 2472364A1 CA 002472364 A CA002472364 A CA 002472364A CA 2472364 A CA2472364 A CA 2472364A CA 2472364 A1 CA2472364 A1 CA 2472364A1
Authority
CA
Canada
Prior art keywords
recording
control information
layer
write strategy
information
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.)
Granted
Application number
CA002472364A
Other languages
French (fr)
Other versions
CA2472364C (en
Inventor
Sang Woon Suh
Jin Yong Kim
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.)
LG Electronics Inc
Original Assignee
LG Electronics 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 KR1020030045825A external-priority patent/KR100953637B1/en
Priority claimed from KR1020030048747A external-priority patent/KR101003425B1/en
Priority claimed from KR1020030056540A external-priority patent/KR100970629B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CA2472364A1 publication Critical patent/CA2472364A1/en
Application granted granted Critical
Publication of CA2472364C publication Critical patent/CA2472364C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/127—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving detection of the number of sides, e.g. single or double, or layers, e.g. for multiple recording or reproducing layers
    • 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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing
    • 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
    • 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
    • G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
    • 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
    • G11B27/32—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 separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • 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
    • G11B7/0045—Recording
    • G11B7/00456—Recording strategies, e.g. pulse sequences
    • 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
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1229—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc lead-in area
    • 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
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1242—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc the area forming one or more zones, wherein each zone is shaped like an annulus or a circular sector
    • G11B2020/1248—ROM zone, i.e. an unrewritable zone
    • 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
    • G11B2020/1278—Physical format specifications of the record carrier, e.g. compliance with a specific standard, recording density, number of layers, start of data zone or lead-out
    • G11B2020/1279—Permanent information and control data stored in the PIC zone of a Blu-Ray disc
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • 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
    • G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
    • G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
    • G11B2220/237—Multilayer discs, i.e. multiple recording layers accessed from the same side having exactly two recording layers
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • 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
    • G11B7/0045—Recording
    • 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
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers

Abstract

A method of recording control information in a recording medium, such as an optical disc, including at least one recording layer is provided Velocity information and per recording velocity write strategy (write strategy parameters) is included in control information, such that standardized control information can be uniformly applied to cope with the playback of a recorded optical disc. The method includes steps of recording, per applicable recording velocity, the control information within a management area of the at least one recording layer of the optical disc; and recording at least one write strategy information per the applicable recording velocity within the control information.

Claims (34)

1. A method of recording control information on a recording medium having at least two recording layers, the method comprising steps of:
providing, per applicable recording velocity, control information for at least two recording layers, the control information including information required to reproduce or record data from or on the recording medium; and recording the control information within a management area of the recording medium and at least one write strategy information per the applicable recording velocity within the disc control information.
2. The method of claim 1, wherein the management area is a prerecorded area.
3. The method of claim 1, wherein the management area having the control information recorded therein is a recordable area when recording data on the recording medium.
4. The method of claim 2, wherein the control information is disc information configured in a permanent information and control (PIC) data area.
5. The method of claim 2, wherein the disc control information is physical format information.
6. The method of claim 1, wherein the write strategy information includes write strategy parameters or write strategy type required to form a pit in order to record data on the recording medium.
7. The method of claim 6, wherein the at least one write strategy information includes basic write strategy information and optional write strategy information.
8. The method of claim 1, wherein the disc control information includes recording layer information and recording velocity information.
9. A method of recording control information on multi layer recording medium, comprising the steps of:
providing at least two control information, the control information including information required to reproduce or record data from on from the multi layer recording medium at least depending on recording layer and/or recording or reproducing speed, the control information arranged in order first according to layer number, second according to an increasing recording speed within each recording layer, or according to write strategy within each recording layer; and recording the disc control information in sequential order on a specific area of the multi layer recording medium.
10. The method of claim 9, wherein the write strategy information includes write strategy parameters or write strategy type required to form a pit in order to record data on the recording medium.
11. The method of claim 10, wherein the at least one write strategy information is divided into basic write strategy information and optional write strategy information.
12. The method of claim 9, wherein recording layer information and recording velocity information are written within the control information.
13. A data structure for recording disc control information on or reproducing control information from a multilayer recording medium having at least a first recording layer and a second recording layer, at least one of the first and second recording layers having a ~
predetermined area for containing the control information and, the disc control information including first control information for the first recording layer and second control information for the second recording layer, wherein the first control information is followed by the second control information, the first control information having recording parameters for a basic write strategy followed by recording parameters of an alternate write strategy or higher recording speed for the first layer, and the second control information having the recording parameters for the basic write strategy followed by the recording parameters of the alternate write strategy or higher recording speed for the second layer.
14. The data structure of claim 13, wherein the first control information and the second control information each include identification information for identifying whether the recording parameters for the alternate write strategy exist or a type of the alternate write strategy.
15. The data structure of claim 14, wherein the recording parameters for the alternate write strategy is dependent on a recording speed and/or the type of the alternate write strategy.
16. The data structure of claim 15, wherein each of the first and second control information includes a layer ID.
17. The data structure of claim 13, wherein the first and second control information are arranged in sequential order.
18. A method of recording data on a multilayer recording medium, comprising steps of:
generating control information; and recording the control information on a specific area of the multilayer recording medium, wherein the multilayer recording medium includes at least a first layer and a second layer, the control information is located at a particular area of the first and/or second layer, and the control information on the first and/or second layer includes first and second control information for the first and second layers and wherein the first control information having recording parameters for a basic write strategy followed by recording parameters of an alternate write strategy or a higher recording speed for the first layer is followed by the second control information having the recording parameters for the basic write strategy followed by the recording parameters of the alternate write strategy or the higher recording speed for the second layer.
19. The method of claim 18, wherein each of the first and second control information includes identification information to identify whether the recording parameters of the alternate write strategy exist and a type of the alternate write strategy.
20. The method of claim 19, wherein the parameters for the alternate write strategy are dependent on a recording speed and/or the type of the write strategy.
21. The method of claim 20, wherein each of the first and second control information includes a layer ID.
22. The method of claim 18, wherein in the recording step, the first and second control information are recorded in sequential order.
23. A method of recording/reproducing data on/from a multilayer recording medium, comprising steps of:
reading control information from a specific area of the multilayer recording medium wherein the multilayer recording medium includes at least a first layer and a second layer, the control information is located at a particular area of the first and/or second layer, and the control information on the first and/or second layer includes first and second control information for the first and second layers and wherein the first control information having recording parameters for a basic write strategy followed by recording parameters of an alternate write strategy or a higher recording speed for the first layer is followed by the second control information having the recording parameters for the basic write strategy followed by the recording parameters of the alternate write strategy or the higher recording speed for the second layer; and recording/reproducing the data on/from a main data area of the first or second layer based on the read control information.
24. The method of claim 23, wherein the first and second control information are recorded on the specific area in sequential order and wherein in the reading step, the first and second control information are read in recorded order.
25. A multilayer recording medium comprising:
at least a first layer and a second layer; and control information located at a particular area of the first and/or second layer, the control information on the first and/or second layer including first and second control information for the first and second layers wherein the first control information having recording parameters for a basic write strategy followed by recording parameters of an alternate write strategy or a higher recording speed for the first layer is followed by the second control information having the recording parameters for the basic write strategy followed by the recording parameters of the alternate write strategy or the higher recording speed for the second layer.
26. The recording medium of claim 25, wherein each of the first and second control information includes identification information to identify whether the recording parameters of the alternate write strategy exist and a type of the alternate write strategy.
27. The recording medium of claim 26, wherein the parameters for the alternate write strategy are dependent on a recording speed and/or the type of the write strategy.
28. The recording medium of claim 27, wherein each of the first and second control information includes a layer ID.
29. The recording medium of claim 25, wherein in the ~
recording step, the first and second control information are recorded in sequential order.
30. An optical recording medium comprising at least two recording layers provided with a recordable area and a recording-disabled or prerecorded area respectively, wherein control information is separately recorded within the prerecorded area per applicable recording velocity and wherein recording layer information designating a recording velocity, and write strategy information according to the corresponding recording velocity are written within the control information.
31. The optical recording medium of claim 30, wherein~
the recording medium is a recordable Blu-ray disc.
32. The optical recording medium of claim 30, wherein the disc is a recordable DVD.
33. A method for recording data on a multilayer recording medium, comprising steps of:
reading control information written within a management area of the recording medium per recording velocity and storing the control information, the control information including recording layer information, recording velocity information, and write strategy information for the corresponding recording velocity recorded within the control information each;
determining the recording velocity of the corresponding recording layer based on the stored recording layer information, recording velocity information, and write strategy information; and performing recording at the decided recording velocity.
34. An apparatus for recording data on and reproducing data from an optical recording medium having at least two recording layers, the apparatus comprising:
a reader to read control information from a specific area of the multi-layer recording medium, wherein the multi-layer recording medium includes at least a first layer and a second layer, the control information is located at a particular area of the first and/or second layer, and the control information on the first and/or second layer includes first and second control information for the first and second layers and wherein the first control~~
information having recording parameters for a basic write strategy followed by recording parameters of an alternate~
write strategy or a higher recording speed for the first layer if followed by the second control information having the recording parameters for the basic write strategy followed by the recording parameters of the alternate write strategy or the higher recording speed for the second layer; and a controller to record or reproduce the data on or from a main data area of the first or second layer based on the read control information.
CA2472364A 2003-07-07 2004-06-21 A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof Expired - Fee Related CA2472364C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR1020030045825A KR100953637B1 (en) 2003-07-07 2003-07-07 Optical disc and recording method of Disc Information of optical disc
KRP10-2003-45825 2003-07-07
KRP10-2003-48747 2003-07-16
KR1020030048747A KR101003425B1 (en) 2003-07-16 2003-07-16 Optical disc and recording method of Disc Information of optical disc
KRP10-2003-56540 2003-08-14
KR1020030056540A KR100970629B1 (en) 2003-08-14 2003-08-14 Recording medium,recording method for recording data on recording medium, and recording apparatus using the same
PCT/KR2004/001488 WO2005004134A1 (en) 2003-07-07 2004-06-21 A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof

Publications (2)

Publication Number Publication Date
CA2472364A1 true CA2472364A1 (en) 2005-01-07
CA2472364C CA2472364C (en) 2012-07-17

Family

ID=36123713

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2472364A Expired - Fee Related CA2472364C (en) 2003-07-07 2004-06-21 A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof

Country Status (14)

Country Link
US (3) US7599273B2 (en)
EP (4) EP1652178B1 (en)
JP (3) JP2007527081A (en)
CN (3) CN100409334C (en)
AT (1) ATE431611T1 (en)
AU (1) AU2004203400B2 (en)
BR (1) BRPI0402878A (en)
CA (1) CA2472364C (en)
DE (1) DE602004021111D1 (en)
DK (1) DK1652178T3 (en)
ES (1) ES2325661T3 (en)
HK (1) HK1083920A1 (en)
TW (3) TWI308329B (en)
WO (1) WO2005004134A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100607985B1 (en) 2004-06-12 2006-08-02 삼성전자주식회사 Recording/reproducing apparatus and information recording medium thereof
JP4458293B2 (en) * 2004-07-13 2010-04-28 パイオニア株式会社 Information recording medium
JP2006209935A (en) 2004-12-28 2006-08-10 Victor Co Of Japan Ltd Optical recording method, optical recording apparatus and optical recording medium
KR20070003511A (en) * 2005-06-30 2007-01-05 엘지전자 주식회사 Recording medium and method and apparatus recording/reproducing data to/from the recording medium
KR20070003513A (en) 2005-06-30 2007-01-05 엘지전자 주식회사 Recording medium and method and apparatus recording/reproducing data to/from the recording medium
WO2007004821A1 (en) * 2005-06-30 2007-01-11 Lg Electronics Inc. Recording medium, and method and apparatus for recording data in the recording medium
WO2007004822A1 (en) * 2005-06-30 2007-01-11 Lg Electronics Inc. Recording medium, and method and apparatus for recording/reproducing data in/from the recording medium
JP4560009B2 (en) * 2006-05-31 2010-10-13 株式会社東芝 Optical recording medium, information recording method, and information reproducing method
US8446810B2 (en) * 2008-10-01 2013-05-21 Panasonic Corporation Information recording medium having recording condition for adjusting the position of cooling pulse
JP2011034646A (en) * 2009-08-04 2011-02-17 Hitachi-Lg Data Storage Inc Optical disk and optical disk device
JP5455523B2 (en) * 2009-09-25 2014-03-26 パナソニック株式会社 Information recording medium having recording / reproducing control information and recording / reproducing apparatus thereof
TWI487376B (en) * 2013-05-31 2015-06-01 Taiwan Secom Co Ltd Data playback device and operating method for data playback

Family Cites Families (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8700655A (en) 1986-10-06 1988-05-02 Philips Nv OPTICALLY READABLE RECORD CARRIER FOR RECORDING INFORMATION, A METHOD AND AN APPARATUS FOR MANUFACTURING SUCH RECORD CARRIER, AN APPARATUS FOR RECORDING INFORMATION ON SUCH RECORDS, AND ANY CONTRACTER.
NL8800152A (en) 1988-01-22 1989-08-16 Philips Nv OPTICAL READABLE RECORD CARRIER OF THE DESCRIBABLE TYPE, AN APPARATUS FOR MANUFACTURING SUCH RECORD CARRIER, AND ARRANGEMENTS FOR RECORDING AND / OR READING INFORMATION ON / FROM SUCH RECORD CARRIER.
JP2928292B2 (en) * 1989-11-15 1999-08-03 松下電器産業株式会社 Optical information recording member and optical information recording / reproducing device
EP0439290B1 (en) 1990-01-21 1996-10-16 Sony Corporation Recording and reproducing apparatus
US5677899A (en) * 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
DK47291D0 (en) 1991-03-15 1991-03-15 Novo Nordisk As PULLULANASE
JPH04301219A (en) 1991-03-28 1992-10-23 Pioneer Electron Corp Constant angular velocity type optical disk and double density recording method for constant angular velocity type optical disk
JP3134392B2 (en) * 1991-08-29 2001-02-13 ソニー株式会社 Signal encoding apparatus and method, signal decoding apparatus and method, signal recording apparatus and method, and signal reproducing apparatus and method
JPH05198099A (en) 1992-01-22 1993-08-06 Sony Corp Information transmission device and information reproduction device
US5173960A (en) 1992-03-06 1992-12-22 At&T Bell Laboratories Cable having superior resistance to flame spread and smoke evolution
US5636631A (en) 1992-05-12 1997-06-10 Advanced Technology Laboratories, Inc. Ultrasonic image data formats
US5502702A (en) 1993-08-09 1996-03-26 Yamaha Corporation Optical disc recording device using basic recording information and projection time control
JP3361598B2 (en) 1994-01-31 2003-01-07 富士通株式会社 Method of applying bias magnetic field to storage device
KR960015450A (en) 1994-10-31 1996-05-22 배순훈 Multilayer optical disc
DE69528636T2 (en) * 1994-12-19 2003-06-26 Koninkl Philips Electronics Nv MULTILAYER RECORDING CARRIER AND DEVICE FOR SCANNING THIS CARRIER
JPH08287474A (en) * 1995-04-10 1996-11-01 Sony Corp Data recording medium and recording and reproducing device using the data recording medium
WO1997009716A1 (en) 1995-09-08 1997-03-13 Philips Electronics N.V. Optical multilayer information carrier
BE1009677A3 (en) 1995-09-29 1997-06-03 Philips Electronics Nv INFORMATION CARRIER AND DEVICE FOR DESCRIBING AN INFORMATION CARRIER.
JPH09139033A (en) * 1995-11-13 1997-05-27 Fujitsu Ltd Storage device, seek control method and defective position detecting method
WO1997027589A1 (en) 1996-01-26 1997-07-31 Exabyte Corporation Handling defective frames on hard sectored magnetic tape
US5959962A (en) 1996-09-30 1999-09-28 Kabushiki Kaisha Toshiba Optical disk having a format condition information drive
SG72852A1 (en) * 1997-08-15 2000-05-23 Ricoh Kk Optical recording medium and recording and reproducing method using the same
US6412082B1 (en) 1997-12-17 2002-06-25 Sony Corporation Method and apparatus for selecting computer programs based on an error detection mechanism
US6781937B2 (en) 1998-01-21 2004-08-24 Yamaha Corporation Optical disk recording method and device
US6788880B1 (en) 1998-04-16 2004-09-07 Victor Company Of Japan, Ltd Recording medium having a first area for storing an audio title set and a second area for storing a still picture set and apparatus for processing the recorded information
KR100354739B1 (en) 1998-04-20 2003-02-19 삼성전자 주식회사 Recording media storing defect menagement information for recording real time data and defect management method therefor
JP3473828B2 (en) 1998-06-26 2003-12-08 株式会社東芝 Audio optical disc, information reproducing method and reproducing apparatus
TW452794B (en) * 1998-06-30 2001-09-01 Fuji Photo Film Co Ltd Optical information-recording medium, method for producing the same, and air-conditioning system for producing optical information-recording medium
JP4209564B2 (en) * 1998-09-22 2009-01-14 パナソニック株式会社 OPTICAL DISC, RECORDING / REPRODUCING METHOD OF RECORDING INFORMATION ON OPTICAL DISC, AND OPTICAL DISC REPRODUCING DEVICE
JP3743178B2 (en) 1998-10-05 2006-02-08 ヤマハ株式会社 Recordable optical disc and optical disc recording apparatus
TR200002369T1 (en) * 1998-10-05 2001-01-22 Koninklijke Philips Electronics N.V. Process for copy protection of recorded information.
JP2000123421A (en) 1998-10-12 2000-04-28 Pioneer Electronic Corp Recording medium, recording medium producing device and information recording and reproducing device
JP3284984B2 (en) 1998-11-25 2002-05-27 船井電機株式会社 Optical disk information recording device
JP2000215449A (en) * 1999-01-27 2000-08-04 Taiyo Yuden Co Ltd Method and device for recording optical information
US6415435B1 (en) 1999-03-18 2002-07-02 International Business Machines Corporation Method and apparatus for determining compatibility of parent classes in an object oriented environment using versioning
JP3298547B2 (en) * 1999-03-30 2002-07-02 ヤマハ株式会社 Optical disk recording device
JP3762847B2 (en) 1999-04-13 2006-04-05 株式会社日立製作所 Information recording method and information recording apparatus
DE60037146T2 (en) 1999-05-19 2008-03-06 Mitsubishi Kagaku Media Co. Ltd. Optical recording method and medium
KR20010011557A (en) 1999-07-29 2001-02-15 구자홍 Disc media and Disc reproducing/recording apparatus and method
JP3720644B2 (en) 1999-08-06 2005-11-30 株式会社リコー Optimal recording power value determination method and optimal recording power value determination device
US6487713B1 (en) 1999-09-24 2002-11-26 Phoenix Technologies Ltd. Software development system that presents a logical view of project components, facilitates their selection, and signals missing links prior to compilation
TW463144B (en) 1999-10-06 2001-11-11 Acer Peripherals Inc Record strategy of record carrier
US6658659B2 (en) 1999-12-16 2003-12-02 Cisco Technology, Inc. Compatible version module loading
EP1117094B1 (en) * 2000-01-17 2012-11-21 Mitsubishi Kagaku Media Co., Ltd. Recording method for phase-change recording medium
JP4245765B2 (en) 2000-01-21 2009-04-02 オリンパス株式会社 Data recording medium and data recording / reproducing apparatus
US6982939B2 (en) 2000-02-02 2006-01-03 Lsi Logic Corporation Write compensation for data storage and communication systems
JP2001312861A (en) 2000-02-25 2001-11-09 Sony Corp Recording medium, recorder and reproducing device
JP4277452B2 (en) 2000-02-25 2009-06-10 ソニー株式会社 Recording device, playback device
JP4374698B2 (en) 2000-02-25 2009-12-02 ソニー株式会社 Recording device
US6532201B1 (en) 2000-04-03 2003-03-11 Hewlett-Packard Company Copy protection for optical discs
JP2001331324A (en) 2000-05-19 2001-11-30 Sony Corp Method and device for processing information and recording medium
US7046605B1 (en) 2000-06-28 2006-05-16 Samsung Electronics Co., Ltd. Recording medium for storing version information for maintaining recording and/or reproducing compatibility, and method and apparatus for managing the same
JP4806839B2 (en) 2000-07-19 2011-11-02 ソニー株式会社 Recording apparatus and recording method
JP2002050040A (en) 2000-07-31 2002-02-15 Sony Corp Optical disk device
JP2002050053A (en) * 2000-08-01 2002-02-15 Tdk Corp Optical information medium
US6741547B2 (en) * 2000-08-10 2004-05-25 Ricoh Company, Ltd. Optical recording medium having short wobble period length
US6535470B1 (en) 2000-08-21 2003-03-18 Oak Technology, Inc. Method and apparatus for writing data in a disk drive
JP3979560B2 (en) 2000-08-24 2007-09-19 パイオニア株式会社 Disc type discrimination method and reproducing apparatus thereof
JP2002074855A (en) 2000-09-04 2002-03-15 Sony Corp Disk shaped recording medium and disk driving device
DE60133571T2 (en) 2000-10-05 2009-05-14 Panasonic Corp., Kadoma Optical recording medium, method for recording on an optical recording medium and apparatus for recording on an optical recording medium
JP2002124038A (en) 2000-10-13 2002-04-26 Toshiba Corp Optical disk and optical disk unit
AU2002214264A1 (en) 2000-11-06 2002-05-15 Matsushita Electric Industrial Co., Ltd. Optical recording medium, optical recording medium production method, optical recording medium production apparatus, program, and medium
US6664526B2 (en) 2000-11-15 2003-12-16 Ricoh Company, Ltd. Optical information recording employing improved recording power control scheme
JP3833890B2 (en) 2000-11-30 2006-10-18 株式会社リコー Optical disc apparatus, recording operation control method thereof, and information processing apparatus
US6510117B2 (en) 2001-01-08 2003-01-21 Lite-On It Corporation Writing strategy for CD-RW
JP2002230764A (en) 2001-02-05 2002-08-16 Yamaha Corp Optical disk recorder
TW548633B (en) 2001-02-09 2003-08-21 Acer Labs Inc Constant angular velocity data write system and the laser power control method thereof
JP2002245624A (en) 2001-02-14 2002-08-30 Tdk Corp Optical recording method, optical recorder and optical recording medium
JP2002245625A (en) * 2001-02-19 2002-08-30 Pioneer Electronic Corp Recording medium, information recording device and method, information recording medium and recording program
TWI220982B (en) 2001-03-19 2004-09-11 Ricoh Kk Writing method for optical disc, processing method for information, optical disc apparatus, and information processing apparatus
JP2003006860A (en) 2001-04-06 2003-01-10 Ricoh Co Ltd Optical information recording medium and method and apparatus for the same
WO2002089123A1 (en) 2001-04-27 2002-11-07 Matsushita Electric Industrial Co., Ltd. Recordable optical disc, optical disc recording apparatus, optical disc reproduction apparatus, and method for recording data onto recordable optical dosc
JP2002334442A (en) 2001-05-11 2002-11-22 Yamaha Corp Optical disk recording method and optical disk recorder
JP2002342942A (en) * 2001-05-14 2002-11-29 Toshiba Corp Information storage medium, information recording method, and information recording/reproducing device
JP4017837B2 (en) 2001-05-22 2007-12-05 株式会社日立製作所 Information recording method and optical disc apparatus
JP2002352435A (en) 2001-05-23 2002-12-06 Toshiba Corp Information recording medium, information recording apparatus, and method for recording information
JP2002358641A (en) * 2001-05-28 2002-12-13 Sony Corp Optical recorder and laser power control method
JP2003045036A (en) 2001-07-27 2003-02-14 Toshiba Corp Optical disk, optical disk recording playback device and optical disk recording playback method
JP3711902B2 (en) 2001-07-30 2005-11-02 ヤマハ株式会社 Recording density determination method in optical disk recording
KR100914434B1 (en) 2001-08-24 2009-08-27 코닌클리케 필립스 일렉트로닉스 엔.브이. Recording apparatus for recording data on optically readable discs
US20030048241A1 (en) 2001-09-12 2003-03-13 Plasmion Displays, Llc Method of driving capillary discharge plasma display panel for improving power efficiency
JP4022119B2 (en) 2001-10-02 2007-12-12 松下電器産業株式会社 Optical information recording method, optical information recording / reproducing apparatus, and optical information recording medium
CN1220981C (en) 2001-10-15 2005-09-28 日本胜利株式会社 Information recording carrier
JP2003203341A (en) 2001-11-02 2003-07-18 Victor Co Of Japan Ltd Optical disk, optical disk recording and playing back device, and optical disk recording and playing back method
JP2003141728A (en) 2001-11-05 2003-05-16 Teac Corp Optical disk unit
EP1464049A2 (en) 2001-11-28 2004-10-06 Koninklijke Philips Electronics N.V. Method and device for recording marks in recording layer of an optical storage medium
JP4101666B2 (en) 2002-01-22 2008-06-18 松下電器産業株式会社 Information recording medium, recording apparatus, reproducing apparatus, recording method, reproducing method
US7123556B2 (en) 2002-01-22 2006-10-17 Matsushita Electric Industrial Co., Ltd. Multi-layered information recording medium with spare defect management areas
TWI257624B (en) 2002-02-01 2006-07-01 Matsushita Electric Ind Co Ltd Information medium and information recording/reproduction apparatus
JP2003257026A (en) 2002-03-04 2003-09-12 Fuji Photo Film Co Ltd Optical information recording medium
US7012878B2 (en) 2002-03-22 2006-03-14 Ricoh Company, Ltd. Optical recording medium and optical recording process using the same
JP3771859B2 (en) 2002-03-27 2006-04-26 株式会社リコー Optical information recording method and optical information recording apparatus
JP2005528720A (en) 2002-04-24 2005-09-22 サムスン　エレクトロニクス　カンパニー　リミテッド Optical information storage medium and recording method thereof
JP3820181B2 (en) 2002-05-10 2006-09-13 株式会社リコー Recording strategy generation method and optical information recording medium
JP4695324B2 (en) 2002-05-29 2011-06-08 パイオニア株式会社 Information storage medium, information recording apparatus and method, information recording control program, and recording medium storing information recording control program
KR20030092588A (en) * 2002-05-30 2003-12-06 삼성전자주식회사 Optical information storage medium and method of recording/reproducing in the same
KR100881665B1 (en) * 2002-05-31 2009-02-06 삼성전자주식회사 Optical information storage medium having plural information recording layer and method of recording/reproducing in the same
US7197671B2 (en) 2002-06-07 2007-03-27 Arm Limited Generation of trace elements within a data processing apparatus
JP4115173B2 (en) * 2002-06-11 2008-07-09 ソニー株式会社 Disc recording medium, disc manufacturing method, disc drive apparatus
JP2004022045A (en) 2002-06-14 2004-01-22 Ricoh Co Ltd Information recording medium, information reproducing device, information recording device, and program
JP4279515B2 (en) 2002-06-25 2009-06-17 株式会社日立グローバルストレージテクノロジーズ Recording / playback device
US7349307B2 (en) 2002-06-29 2008-03-25 Lg Electronics Inc. Method of recording data optimally onto a recording medium
KR100667746B1 (en) * 2002-07-15 2007-01-11 삼성전자주식회사 Information storage medium recorded drive information and method of recording the same
KR20040028469A (en) 2002-09-30 2004-04-03 엘지전자 주식회사 Method for managing a defect area on optical disc write once
US7233550B2 (en) 2002-09-30 2007-06-19 Lg Electronics Inc. Write-once optical disc, and method and apparatus for recording management information on write-once optical disc
KR100739673B1 (en) 2002-10-10 2007-07-13 삼성전자주식회사 Method for managing defect using temporary DFL and temporary DDS
KR100667749B1 (en) 2002-10-18 2007-01-11 삼성전자주식회사 Method and apparatus for managing defect using temporary DFL and temporary DDS, and disc thereof
CN100387047C (en) 2002-11-26 2008-05-07 汤姆森许可贸易公司 Apparatus and method for detecting NTSC co-channel interference
EP1579443A1 (en) 2002-12-11 2005-09-28 LG Electronics Inc. Method and apparatus for managing overwrite on an optical disc write once
TWI314315B (en) 2003-01-27 2009-09-01 Lg Electronics Inc Optical disc of write once type, method, and apparatus for managing defect information on the optical disc
KR20040081903A (en) 2003-03-17 2004-09-23 삼성전자주식회사 Information storage medium and method of recording and/or reproducing on the same
US7161881B2 (en) 2003-04-23 2007-01-09 Dell Products L.P. Method and system for optical drive write strategies embedded in an optical medium
JP4154304B2 (en) 2003-05-08 2008-09-24 株式会社日立製作所 Recording medium, optical disc apparatus, and recording method
KR20050003343A (en) 2003-06-30 2005-01-10 삼성전자주식회사 Information storage medium, method and apparatus for recording and/or reproducing pointing information
KR100953637B1 (en) 2003-07-07 2010-04-20 엘지전자 주식회사 Optical disc and recording method of Disc Information of optical disc
WO2005010875A1 (en) 2003-07-29 2005-02-03 Samsung Electronics Co., Ltd. Information storage medium and method and apparatus for recording and/or reproducing pointing information
DE602004030496D1 (en) 2003-08-14 2011-01-20 Lg Electronics Inc Recording medium, configuration method for control information, recording and reproducing method and apparatus therefor
DE602004020490D1 (en) 2003-08-14 2009-05-20 Lg Electronics Inc RECORDING MEDIUM, METHOD FOR CONFIGURING TAX INFORMATION THEREFOR, RECORDING / REPLAYING THEREFOR AND DEVICE THEREFOR
KR101024904B1 (en) 2003-08-14 2011-03-31 엘지전자 주식회사 Recording medium,recording method, recording apparatus and recording/reproducing system
EP1669993A4 (en) 2003-09-30 2011-11-23 Kenwood Corp Digital watermark information adding device, data reproduction device and data recording device
JP4212456B2 (en) 2003-11-18 2009-01-21 株式会社東芝 Optical disc, optical disc apparatus and reproducing method

Also Published As

Publication number Publication date
TW200809814A (en) 2008-02-16
EP1868187B1 (en) 2013-03-27
EP1652178B1 (en) 2009-05-13
US7599273B2 (en) 2009-10-06
US20070247987A1 (en) 2007-10-25
CA2472364C (en) 2012-07-17
CN100409334C (en) 2008-08-06
US7719934B2 (en) 2010-05-18
HK1083920A1 (en) 2006-07-14
CN1701366A (en) 2005-11-23
ES2325661T3 (en) 2009-09-11
EP1868187A1 (en) 2007-12-19
EP1858009B1 (en) 2013-03-27
TW200502934A (en) 2005-01-16
AU2004203400B2 (en) 2009-01-08
EP1868186A1 (en) 2007-12-19
JP2007527081A (en) 2007-09-20
TWI352346B (en) 2011-11-11
EP1652178A1 (en) 2006-05-03
DK1652178T3 (en) 2009-08-24
US7680012B2 (en) 2010-03-16
DE602004021111D1 (en) 2009-06-25
EP1868186B1 (en) 2013-02-13
TWI352986B (en) 2011-11-21
ATE431611T1 (en) 2009-05-15
EP1858009A1 (en) 2007-11-21
TWI308329B (en) 2009-04-01
JP2007299520A (en) 2007-11-15
TW200809815A (en) 2008-02-16
AU2004203400A1 (en) 2005-02-03
US20050007916A1 (en) 2005-01-13
BRPI0402878A (en) 2005-03-29
JP2007299521A (en) 2007-11-15
CN101093677B (en) 2012-09-19
CN1701364A (en) 2005-11-23
US20070247986A1 (en) 2007-10-25
WO2005004134A1 (en) 2005-01-13
CN101093677A (en) 2007-12-26

Similar Documents

Publication Publication Date Title
CA2535264A1 (en) Recording medium, method of configuring control information thereof, recording and reproducing method using the same, and apparatus thereof
JP2005276433A5 (en)
CA2658113A1 (en) Optical information recording medium, optical information recording method, and optical information recording apparatus
RU2007105668A (en) OPTICAL INFORMATION STORAGE
CA2558895A1 (en) Recording medium with physical access control (pac) information thereon and apparatus and methods for forming, recording, and reproducing the recording medium
JP2007501488A5 (en)
HK1090467A1 (en) Recording medium, method of configuring disc control information thereof, recording and reproducing method using the same, and apparatus thereof
CA2502655A1 (en) Recording medium, method of configuring control information thereof, recording and/or reproducing method using the same, and apparatus thereof
CA2472364A1 (en) A recording medium, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof
HK1108216A1 (en) Information storage medium, recording/reproducing apparatus, and recording/reproducing method
EP2270783A3 (en) High-density optical disc and method for restricting playback of the high-density optical disc in optical disc apparatus
JP2007502493A5 (en)
CA2535263A1 (en) Recording medium, method of configuring control information thereof, recording and reproducing method using the same, and apparatus thereof
TW200735070A (en) A recording media, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof (Ⅱ)
TW200612411A (en) Optical recording medium, recording/reproducing method and recording/reproducing apparatus
CA2474995A1 (en) Recording medium, method of configuring control information thereof, recording and/or reproducing method using the same, and apparatus thereof
MY146858A (en) Information storage medium, and recording/reproducing apparatus and method
CA2525492A1 (en) Method and apparatus for recording and reproducing data on/from write-once disc, and write-once disc therefor
KR20070005757A (en) Recording medium, recording/reproducing method and apparatus thereof
MY138016A (en) Recording medium, method of configuring control information thereof, recording/reproducing method using the same, and apparatus thereof
RU2004122401A (en) RECORDING MEDIA, METHOD FOR CONFIGURING ITS MANAGING INFORMATION, METHOD FOR RECORDING AND / OR PLAYING WITH USE AND A DEVICE FOR ITS IMPLEMENTATION
RU2006107926A (en) RECORDING MEDIA, METHOD FOR CONFIGURING RECORDING MEDIA MANAGEMENT INFORMATION, RECORDING METHOD AND PLAYBACK USING MANAGEMENT INFORMATION AND DEVICE FOR RECORDING MEDIA
RU2005120173A (en) RECORDING MEDIA, METHOD OF SELECTION FOR HIM CONFIGURATION OF MANAGED INFORMATION OF THE DISK, METHOD OF RECORDING AND PLAYBACK WITH THEIR USE AND DEVICE FOR IT
RU2004122412A (en) RECORDING MEDIA, METHOD FOR CONFIGURING ITS MANAGING INFORMATION, METHOD FOR RECORDING AND / OR PLAYING WITH THEIR USE AND A DEVICE FOR ITS IMPLEMENTATION
JP2006309938A5 (en)

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180621