HK81195A - Apparatus for information recording and/or reproducing on or from an optical disc - Google Patents
Apparatus for information recording and/or reproducing on or from an optical discInfo
- Publication number
- HK81195A HK81195A HK81195A HK81195A HK81195A HK 81195 A HK81195 A HK 81195A HK 81195 A HK81195 A HK 81195A HK 81195 A HK81195 A HK 81195A HK 81195 A HK81195 A HK 81195A
- Authority
- HK
- Hong Kong
- Prior art keywords
- reproducing
- optical disc
- information recording
- disc
- recording
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—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
- G11B7/24085—Pits
-
- 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
-
- 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
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
- G11B11/10563—Access of indexed parts
-
- 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
-
- 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
-
- 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
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/036—Insert-editing
-
- 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
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
-
- 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
- G11B7/007—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
- G11B7/007—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
- G11B7/013—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 for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
-
- 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
- G11B2220/25—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/60—Solid state media
- G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata
-
- 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
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optical Recording Or Reproduction (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62127369A JP2663436B2 (ja) | 1987-05-25 | 1987-05-25 | 光ディスク記録装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK81195A true HK81195A (en) | 1995-06-01 |
Family
ID=14958266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK81195A HK81195A (en) | 1987-05-25 | 1995-05-25 | Apparatus for information recording and/or reproducing on or from an optical disc |
Country Status (8)
Country | Link |
---|---|
US (1) | US4996678A (ko) |
EP (1) | EP0292917B1 (ko) |
JP (1) | JP2663436B2 (ko) |
KR (1) | KR970001371B1 (ko) |
CA (1) | CA1310121C (ko) |
DE (1) | DE3871235D1 (ko) |
HK (1) | HK81195A (ko) |
SG (1) | SG30623G (ko) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2672849B2 (ja) * | 1988-12-29 | 1997-11-05 | シャープ株式会社 | ディスク記録再生装置 |
JPH02187979A (ja) * | 1989-01-13 | 1990-07-24 | Sharp Corp | ディスク記録再生装置 |
JP2876611B2 (ja) * | 1989-01-25 | 1999-03-31 | ソニー株式会社 | 追記型光ディスクの記録方法 |
JP2621459B2 (ja) * | 1989-02-07 | 1997-06-18 | ヤマハ株式会社 | 光ディスク記録システム |
US5124966A (en) * | 1989-03-29 | 1992-06-23 | U.S. Philips Corporation | Method for recording data signals on an inscribable record carrier and reading device for the record carrier |
JPH0373420A (ja) * | 1989-04-28 | 1991-03-28 | Canon Inc | 光学的情報記録再生装置 |
DE69023692T2 (de) * | 1989-05-08 | 1996-06-27 | Philips Electronics Nv | Informationsaufzeichnungssystem, Aufzeichnungsverfahren und Aufzeichnungsträger zur Anwendung in einem derartigen Informationsaufzeichnungssystem. |
KR930006580B1 (ko) * | 1989-05-26 | 1993-07-21 | 샤프 가부시끼가이샤 | 기록재생장치 |
CA2020059C (en) * | 1989-06-30 | 1995-05-23 | Shigemi Maeda | Modular ceramic igniter |
US5737632A (en) * | 1989-12-19 | 1998-04-07 | Hitachi, Ltd. | Magnetic disc control apparatus with parallel data transfer between disc control unit and encoder/decoder circuit |
JPH03263675A (ja) * | 1990-03-13 | 1991-11-25 | Nippon Columbia Co Ltd | 光ディスク記録再生装置 |
JP3015449B2 (ja) * | 1990-10-25 | 2000-03-06 | パイオニア株式会社 | 光学式情報記録装置 |
US5712949A (en) * | 1991-01-29 | 1998-01-27 | Sony Corporation | Disc reproduction system with sequential reproduction of audio and image data |
US5715224A (en) * | 1991-07-05 | 1998-02-03 | Sony Corporation | Recording medium with synthesis method default value and reproducing device |
TW258810B (ko) * | 1992-05-25 | 1995-10-01 | Sony Co Ltd | |
JP3130380B2 (ja) * | 1992-08-28 | 2001-01-31 | 株式会社ケンウッド | 光ディスク記録再生装置 |
ATE237861T1 (de) * | 1992-09-03 | 2003-05-15 | Sony Corp | Datenaufzeichnungsgerät und -verfahren |
BE1006921A3 (nl) * | 1993-03-16 | 1995-01-24 | Koninkl Philips Electronics Nv | Inrichting voor het schrijven van informatie. |
KR0127195Y1 (ko) * | 1994-07-07 | 1998-10-15 | 김광호 | 디스크의 사용불가 영역 복원 제어방법 |
KR960025324A (ko) * | 1994-12-05 | 1996-07-20 | 김광호 | 기록 가능한 광디스크 구동장치에서 사용자 목록 데이타 복원방법 |
JP4179637B2 (ja) | 1997-11-29 | 2008-11-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 様々な音声フォーマットに対する1つの主tocと数個の副tocとを備える多階層のtoc機構を備える音声中心の情報を記憶する方法、上記機構で使用する装置及び上記機構を含む単体式記憶媒体 |
JP3607486B2 (ja) | 1998-01-21 | 2005-01-05 | 株式会社東芝 | 情報記録再生装置 |
JPH11213633A (ja) | 1998-01-21 | 1999-08-06 | Pioneer Electron Corp | 情報記録装置 |
KR100326338B1 (ko) * | 1999-09-18 | 2002-03-08 | 구자홍 | 광기록매체의 최적 기록방법 |
KR100521937B1 (ko) * | 2000-02-11 | 2005-10-13 | 엘지전자 주식회사 | 재기록 가능 기록매체에의 오디오 데이터 기록방법 |
JP2001266495A (ja) * | 2000-03-24 | 2001-09-28 | Sony Corp | 光ディスク及び光ディスク駆動装置 |
US7161887B2 (en) * | 2001-11-13 | 2007-01-09 | Digeo, Inc. | Method and apparatus for extracting digital data from a medium |
KR20040009454A (ko) * | 2002-07-23 | 2004-01-31 | 삼성전자주식회사 | 광정보 저장매체 및 그 기록방법 |
WO2004029968A2 (en) * | 2002-09-27 | 2004-04-08 | Koninklijke Philips Electronics N.V. | Methods and devices for defect and reallocation management on write-once media |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4229808A (en) * | 1978-12-21 | 1980-10-21 | Ncr Corporation | Method for recording multiple data segments on a storage disc with eccentricity factor |
GB2040539B (en) * | 1978-12-27 | 1983-01-26 | Hitachi Ltd | Optical information recording apparatus |
JPS5832236A (ja) * | 1981-08-18 | 1983-02-25 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置 |
JPS5848279A (ja) * | 1981-09-14 | 1983-03-22 | Sony Corp | キユ−信号処理装置 |
JPS58181163A (ja) * | 1982-04-16 | 1983-10-22 | Hitachi Ltd | 記憶装置の制御方式 |
JPH0812743B2 (ja) * | 1983-06-30 | 1996-02-07 | 株式会社東芝 | ディスク装置 |
JPS6050630A (ja) * | 1983-08-30 | 1985-03-20 | Fujitsu Ltd | Eod管理方式 |
US4791622A (en) * | 1983-09-19 | 1988-12-13 | Storage Technology Partners 11 | Optical data format employing resynchronizable data sectors |
US4631723A (en) * | 1984-06-08 | 1986-12-23 | Honeywell Information Systems Inc. | Mass storage disk drive defective media handling |
JPH077329B2 (ja) * | 1985-07-29 | 1995-01-30 | 株式会社日立製作所 | 光ディスクメモリの情報書換え制御方法及び装置 |
JPS62149034A (ja) * | 1985-12-23 | 1987-07-03 | Canon Inc | 情報記録担体 |
US4843484A (en) * | 1986-09-12 | 1989-06-27 | Pioneer Electronic Corporation | Information recording disc with composite index codes and its playback method |
-
1987
- 1987-05-25 JP JP62127369A patent/JP2663436B2/ja not_active Expired - Fee Related
-
1988
- 1988-04-29 CA CA000565496A patent/CA1310121C/en not_active Expired - Lifetime
- 1988-05-02 US US07/189,113 patent/US4996678A/en not_active Expired - Lifetime
- 1988-05-24 EP EP88108264A patent/EP0292917B1/en not_active Expired - Lifetime
- 1988-05-24 DE DE8888108264T patent/DE3871235D1/de not_active Expired - Lifetime
- 1988-05-24 SG SG1995906582A patent/SG30623G/en unknown
- 1988-05-25 KR KR1019880006112A patent/KR970001371B1/ko not_active IP Right Cessation
-
1995
- 1995-05-25 HK HK81195A patent/HK81195A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2663436B2 (ja) | 1997-10-15 |
DE3871235D1 (de) | 1992-06-25 |
EP0292917A1 (en) | 1988-11-30 |
CA1310121C (en) | 1992-11-10 |
JPS63292481A (ja) | 1988-11-29 |
US4996678A (en) | 1991-02-26 |
KR970001371B1 (ko) | 1997-02-05 |
EP0292917B1 (en) | 1992-05-20 |
KR880014525A (ko) | 1988-12-24 |
SG30623G (en) | 1995-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
HK81195A (en) | Apparatus for information recording and/or reproducing on or from an optical disc | |
EP0392853A3 (en) | An apparatus for recording and reproducing information on and from an optical disk | |
EP0281408A3 (en) | Optical information recording and reproducing apparatus | |
GB2232291B (en) | Optical system of optical information recording/reproducing apparatus | |
AU1434188A (en) | Apparatus for recording and/or reproducing digital data information | |
EP0178657A3 (en) | Apparatus for recording and/or reproducing data signal on or from disk sharped recording medium | |
GB2170632B (en) | Optical information recording medium and apparatus for recording/reproducing information using the same | |
GB2166583B (en) | Optical information recording and/or reproducing apparatus | |
DE3373155D1 (en) | Apparatus for recording and/or reading information on an optically readable disc | |
AU1292288A (en) | Method for recording and reproducing data for an optical card | |
EP0271335A3 (en) | Optical information recording and reproducing system and optical disk | |
GB2104687B (en) | Optical information recording and reproducing apparatus | |
EP0529662A3 (en) | Optical disc and method for recording on optical disk | |
EP0320975A3 (en) | Information recording/reproducing method and apparatus | |
EP0408392A3 (en) | Optical disk recording and reproducing apparatus | |
AU1292388A (en) | Data recording/reproducing apparatus for optical card | |
EP0464871A3 (en) | Optical information recording/reproducing apparatus | |
DE3472322D1 (en) | Optical information recording and reproducing apparatus | |
EP0208536A3 (en) | Apparatus for recording and/or reproducing an additional information signal | |
EP0221782A3 (en) | Optical information recording and reproducing apparatus | |
EP0311372A3 (en) | Optical apparatus for optical information recording medium | |
EP0132137A3 (en) | Disc for recording and reproducing optical information | |
EP0335465A3 (en) | Optical information recording disc and apparatus for driving the disc | |
GB2171551B (en) | Optical information recording and reproducing apparatus | |
DE3665236D1 (en) | Optical information recording and reproducing apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20070524 |