CA2039700A1 - Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium - Google Patents
Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording mediumInfo
- Publication number
- CA2039700A1 CA2039700A1 CA2039700A CA2039700A CA2039700A1 CA 2039700 A1 CA2039700 A1 CA 2039700A1 CA 2039700 A CA2039700 A CA 2039700A CA 2039700 A CA2039700 A CA 2039700A CA 2039700 A1 CA2039700 A1 CA 2039700A1
- Authority
- CA
- Canada
- Prior art keywords
- recorded
- information
- reproducing
- track
- circuit
- 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
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
- 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
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10504—Recording
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10528—Shaping of magnetic domains, e.g. form, dimensions
-
- 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
- G11B11/10595—Control of operating function
- G11B11/10597—Adaptations for transducing various formats on the same or different carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
-
- 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
- G11B20/1254—Formatting, e.g. arrangement of data block or words on the record carriers on discs for mixed data, i.e. continuous and discontinuous data
-
- 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
- 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
-
- 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
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24073—Tracks
- G11B7/24082—Meandering
-
- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio 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
- G11B20/12—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
- G11B2020/1259—Formatting, e.g. arrangement of data block or words on the record carriers on discs with ROM/RAM areas
-
- 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
Abstract
In an optical recording medium on which the main information is recorded on a pre-formed recording track along the track direction and in which the recorded data are read out by optical means, frame sync signals based on the same format as the format for the main information are pre-recorded by offsetting the recording track itself along its width for each frame as an information recording unit, for facilitating frame synchronization and simplifying the construction through the of a sole common synchronizing circuit. The information pre-recorded by offsetting the track itself along its width includes not only the frame sync signals but also any reproduce-only information for increasing the disc recording capacity. The reproducing circuit for reproducing the frame sync signals of the main information recorded along the track direction of the recording track, and the reproducing circuit for reproducing the frame sync signals having the same format as the main information among the information recorded by offsetting the track along its width, are formed as a common circuit for simplifying the circuit construction.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPP1-219413 | 1989-08-25 | ||
JP1219413A JP2743507B2 (en) | 1989-08-25 | 1989-08-25 | Recording medium and signal reproducing device |
JP1225314A JPH0388125A (en) | 1989-08-31 | 1989-08-31 | Recording medium, information recording and reproducing method |
JPP1-225315 | 1989-08-31 | ||
JPP1-225314 | 1989-08-31 | ||
JP1225315A JP2745713B2 (en) | 1989-08-31 | 1989-08-31 | Information recording method, information reproducing method and recording medium |
PCT/JP1990/001072 WO1991003046A1 (en) | 1989-08-25 | 1990-08-22 | Optical recording medium, data recording method and data reproducing method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2039700A1 true CA2039700A1 (en) | 1991-02-26 |
CA2039700C CA2039700C (en) | 1999-10-19 |
Family
ID=27330273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002039700A Expired - Lifetime CA2039700C (en) | 1989-08-25 | 1990-08-22 | Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium |
Country Status (7)
Country | Link |
---|---|
US (3) | US5587901A (en) |
EP (1) | EP0441967B1 (en) |
KR (1) | KR0178763B1 (en) |
AU (1) | AU637816B2 (en) |
CA (1) | CA2039700C (en) |
DE (1) | DE69026596T2 (en) |
WO (1) | WO1991003046A1 (en) |
Families Citing this family (30)
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US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
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 |
JP3163686B2 (en) * | 1991-10-08 | 2001-05-08 | ソニー株式会社 | Playback device |
EP0930614B1 (en) * | 1991-12-02 | 2004-03-31 | Philips Electronics N.V. | Closed information system with physical copy protection |
JP2786810B2 (en) * | 1994-03-16 | 1998-08-13 | 株式会社東芝 | Optical disc, signal recording device therefor, and signal reproducing device |
US5761172A (en) * | 1994-03-25 | 1998-06-02 | Hitachi, Ltd. | Method of optical reproduction using pulsed light |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
US6118754A (en) * | 1995-05-16 | 2000-09-12 | Sony Corporation | Data recording/reproducing apparatus and method corresponding to a plurality of data formats, and data recording medium |
TW316976B (en) * | 1995-05-16 | 1997-10-01 | Sony Co Ltd | |
JPH08315515A (en) * | 1995-05-18 | 1996-11-29 | Sony Corp | Method and apparatus for recording/reproducing data and data recording medium |
JPH08329612A (en) * | 1995-06-02 | 1996-12-13 | Sony Corp | Data recording disk |
US5835478A (en) * | 1995-06-15 | 1998-11-10 | Sony Corporation | Optical disc having address information for recording and reproducing data at correct positions |
JP3951317B2 (en) * | 1995-09-28 | 2007-08-01 | ソニー株式会社 | Apparatus and method for data recording / reproduction |
JP3917207B2 (en) * | 1996-01-12 | 2007-05-23 | パイオニア株式会社 | Pre-information recording method and apparatus, information recording method and apparatus, and information recording medium |
JP3642863B2 (en) * | 1996-02-02 | 2005-04-27 | ソニー株式会社 | Disk, disk forming apparatus, and disk forming method |
JPH09237421A (en) * | 1996-03-01 | 1997-09-09 | Sony Corp | Recording and reproducing device and method |
CN1288639C (en) * | 1996-04-11 | 2006-12-06 | 松下电器产业株式会社 | Optical disk |
US6052358A (en) * | 1996-10-04 | 2000-04-18 | Sony Corporation | Head feeding mechanism and optical pick-up feeding mechanism |
CN1516131A (en) | 1996-10-22 | 2004-07-28 | ������������ʽ���� | Information recording medium and playback device capable of expressing magnetic track swinging information |
JP4014690B2 (en) * | 1997-05-07 | 2007-11-28 | パイオニア株式会社 | Information reproducing apparatus, information reproducing method, and information recording / reproducing system |
JPH10320773A (en) * | 1997-05-19 | 1998-12-04 | Sony Corp | Manufacture of optical disk, optical disk and optical disk device |
US7701836B2 (en) * | 2001-11-27 | 2010-04-20 | Hewlett-Packard Development Company, L.P. | Re-writable optical disk having reference clock information permanently formed on the disk |
CN1246841C (en) * | 2000-03-29 | 2006-03-22 | 松下电器产业株式会社 | Optical disk and recording device and reading device for such on optical disk |
EP1758118B1 (en) | 2000-12-26 | 2008-03-19 | Matsushita Electric Industrial Co., Ltd. | Recording of additional data with linking frames and various synchronization signals |
JP3812674B2 (en) * | 2001-09-28 | 2006-08-23 | ティアック株式会社 | Data storage disk playback device |
KR100974449B1 (en) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | Method for managing a copy protection information of optical disc |
KR100974448B1 (en) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | Method for managing a copy protection information of optical disc |
KR20040092649A (en) * | 2003-04-24 | 2004-11-04 | 엘지전자 주식회사 | Method for managing a copy protection information of optical disc |
JP2007141277A (en) * | 2005-11-14 | 2007-06-07 | Sony Corp | Optical disk recording medium, disk manufacturing method and recorder |
Family Cites Families (21)
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JPS583297B2 (en) * | 1978-06-09 | 1983-01-20 | 株式会社日立製作所 | Information recording and reproducing method, its device and its recording medium |
NL8000123A (en) * | 1980-01-09 | 1981-08-03 | Philips Nv | DEVICE FOR WRITING DIGITAL INFORMATION IN A DISC-SHAPED OPTICALLY READABLE RECORD CARRIER. |
NL8000122A (en) * | 1980-01-09 | 1981-08-03 | Philips Nv | DISC-SHAPED, OPTICALLY-READABLE RECORD CARRIER AS A STORAGE MEDIUM FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH REGISTRATION CARRIER, DEVICE FOR RECORDING AND / OR DISPLAYING DATA INFORMATION IN C.Q. OF SUCH REGISTRATION CARRIER. |
NL8006165A (en) * | 1980-11-12 | 1982-06-01 | Philips Nv | SYSTEM FOR TRANSFER OF DIGITAL INFORMATION, CODER FOR APPLICATION IN THAT SYSTEM, DECODER FOR APPLICATION IN THAT SYSTEM AND RECORD CARRIAGE FOR APPLICATION IN THAT SYSTEM. |
JPS5832751A (en) * | 1981-08-19 | 1983-02-25 | オリンパス光学工業株式会社 | Sample sampling apparatus in endoscope |
JPS61158045A (en) * | 1984-12-28 | 1986-07-17 | Nec Home Electronics Ltd | Light head |
JPS61236046A (en) * | 1985-04-10 | 1986-10-21 | Sony Corp | Discoid recording medium and its manufacturing device |
JPS6243839A (en) * | 1985-08-20 | 1987-02-25 | Sony Corp | Disc recording medium and its manufacture device |
JPH0799592B2 (en) * | 1985-10-02 | 1995-10-25 | 松下電器産業株式会社 | Optical information storage carrier |
JPS6332751A (en) * | 1986-07-25 | 1988-02-12 | Konica Corp | Magneto-optical recording medium |
KR960000452B1 (en) * | 1986-08-25 | 1996-01-06 | 소니 가부시끼가이샤 | Disc device and disc-like recording medium |
NL8701632A (en) * | 1987-07-10 | 1989-02-01 | Philips Nv | SYSTEM FOR RECORDING AND / OR READING AN INFORMATION SIGNAL, A RECORD CARRIER, A RECORDING AND / OR READING DEVICE FOR USE IN SUCH A SYSTEM, AND AN APPARATUS AND METHOD FOR MANUFACTURING SUCH RECORD CARRIER. |
JP2647875B2 (en) * | 1987-12-25 | 1997-08-27 | 株式会社日立製作所 | Magneto-optical signal recording / reproducing method |
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. |
NL8800151A (en) * | 1988-01-22 | 1989-08-16 | Philips Nv | METHOD AND APPARATUS FOR RECORDING AN INFORMATION SIGNAL |
US5185732A (en) * | 1988-06-20 | 1993-02-09 | Sony Corporation | Recording medium and recording and reproducing apparatus employing the recording medium |
JP2974678B2 (en) * | 1988-06-23 | 1999-11-10 | ソニー株式会社 | Data error detection method |
US5182741A (en) * | 1989-08-25 | 1993-01-26 | Sharp Kabushiki Kaisha | Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk |
US5297125A (en) * | 1989-08-25 | 1994-03-22 | Sony Corporation | Optical recording medium and information recording apparatus for recording bursts of low-pass filtered reproduce-only information in a wobbling pre-groove on the optical recording medium |
US5148422A (en) * | 1989-08-25 | 1992-09-15 | Sony Corporation | Optical recording medium having a data recording track with offset data storing regions |
JPH0383226A (en) * | 1989-08-25 | 1991-04-09 | Sony Corp | Recording medium |
-
1990
- 1990-08-22 KR KR1019910700401A patent/KR0178763B1/en not_active IP Right Cessation
- 1990-08-22 AU AU61845/90A patent/AU637816B2/en not_active Expired
- 1990-08-22 DE DE69026596T patent/DE69026596T2/en not_active Expired - Lifetime
- 1990-08-22 CA CA002039700A patent/CA2039700C/en not_active Expired - Lifetime
- 1990-08-22 WO PCT/JP1990/001072 patent/WO1991003046A1/en active IP Right Grant
- 1990-08-22 EP EP90912463A patent/EP0441967B1/en not_active Expired - Lifetime
- 1990-08-22 US US07/689,057 patent/US5587901A/en not_active Expired - Lifetime
-
1993
- 1993-02-25 US US08/022,561 patent/US5949746A/en not_active Expired - Lifetime
-
1994
- 1994-02-03 US US08/190,887 patent/US5469416A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0441967A4 (en) | 1992-10-07 |
US5469416A (en) | 1995-11-21 |
CA2039700C (en) | 1999-10-19 |
DE69026596T2 (en) | 1996-10-10 |
AU6184590A (en) | 1991-04-03 |
AU637816B2 (en) | 1993-06-10 |
KR0178763B1 (en) | 1999-04-15 |
EP0441967A1 (en) | 1991-08-21 |
EP0441967B1 (en) | 1996-04-17 |
WO1991003046A1 (en) | 1991-03-07 |
US5587901A (en) | 1996-12-24 |
US5949746A (en) | 1999-09-07 |
KR920701947A (en) | 1992-08-12 |
DE69026596D1 (en) | 1996-05-23 |
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