JPH11162038A - 光磁気記録媒体から記録情報を読み取る装置及び方法 - Google Patents
光磁気記録媒体から記録情報を読み取る装置及び方法Info
- Publication number
- JPH11162038A JPH11162038A JP10056531A JP5653198A JPH11162038A JP H11162038 A JPH11162038 A JP H11162038A JP 10056531 A JP10056531 A JP 10056531A JP 5653198 A JP5653198 A JP 5653198A JP H11162038 A JPH11162038 A JP H11162038A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- clock
- clock signal
- read
- recording medium
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 27
- 230000003111 delayed effect Effects 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 230000001934 delay Effects 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims 6
- 238000001914 filtration Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 16
- 230000005415 magnetization Effects 0.000 description 10
- 230000005374 Kerr effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
- G11B11/10515—Reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR60066/1997 | 1997-11-14 | ||
| KR1019970060066A KR100239468B1 (ko) | 1997-11-14 | 1997-11-14 | 광자기 기록매체로부터 기록 정보를 재생하는 방법 및 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11162038A true JPH11162038A (ja) | 1999-06-18 |
| JPH11162038A5 JPH11162038A5 (https=) | 2005-09-02 |
Family
ID=19524754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10056531A Pending JPH11162038A (ja) | 1997-11-14 | 1998-03-09 | 光磁気記録媒体から記録情報を読み取る装置及び方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6014348A (https=) |
| JP (1) | JPH11162038A (https=) |
| KR (1) | KR100239468B1 (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3778399B2 (ja) * | 1998-03-16 | 2006-05-24 | 富士通株式会社 | 光学的記憶装置及び光記憶媒体の記録再生方法 |
| US6329782B1 (en) * | 1999-09-17 | 2001-12-11 | Delphi Technologies, Inc. | Method and apparatus for robust generation of an index pulse for an electric power steering system |
| WO2001020351A1 (en) | 1999-09-17 | 2001-03-22 | Delphi Technologies, Inc. | A low cost approach to measuring high resolution rotary position of electric machines |
| US6486658B2 (en) | 2000-02-16 | 2002-11-26 | Delphi Technologies, Inc. | Encoder for a permanent magnet sinusoidal brushless motor in an electric power steering system |
| US6868053B2 (en) * | 2000-04-12 | 2005-03-15 | Matsushita Electric Industrial Co., Ltd. | Optical information recording apparatus for stable recording |
| JP3639525B2 (ja) | 2000-12-11 | 2005-04-20 | 三洋電機株式会社 | ディスク装置 |
| US6460649B2 (en) * | 2001-02-16 | 2002-10-08 | Delphi Technologies, Inc. | Passive starting of a torque-ripple-free electric power steering system |
| WO2003029503A2 (en) | 2001-10-01 | 2003-04-10 | Delphi Technologies, Inc. | Method and apparatus for calibrating and initializing an electronically commutated electric machine |
| WO2003094158A1 (en) | 2002-05-01 | 2003-11-13 | Lg Electronics Inc. | High-density read-only optical disc, and optical disc apparatus and method using the same |
| KR100938393B1 (ko) * | 2002-12-06 | 2010-01-22 | 엘지전자 주식회사 | 고밀도 재생전용 광디스크와, 그에 따른 광디스크 장치 및방법 |
| CN100514458C (zh) | 2002-07-02 | 2009-07-15 | Lg电子株式会社 | 一种在/从记录介质记录/再现数据的装置和方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2650249B2 (ja) * | 1987-01-12 | 1997-09-03 | ソニー株式会社 | 光磁気ディスク再生装置 |
| NL8800223A (nl) * | 1987-04-21 | 1988-11-16 | Philips Nv | Systeem voor het registreren van een informatiesignaal, alsmede een registratiedrager en registratieinrichting voor toepassing in het systeem. |
| JP2669532B2 (ja) * | 1988-05-20 | 1997-10-29 | 株式会社日立製作所 | 光ディスク装置 |
| JPH04325948A (ja) * | 1991-04-25 | 1992-11-16 | Seiko Epson Corp | 光磁気記録再生方法 |
| JPH05303833A (ja) * | 1992-04-24 | 1993-11-16 | Pioneer Electron Corp | 記録媒体のデータ記録方法および再生方法 |
| US5450381A (en) * | 1992-07-07 | 1995-09-12 | Sony Corporation | Magneto-optical recording utilizing signal phase adjustment |
| JP3046515B2 (ja) * | 1994-12-16 | 2000-05-29 | シャープ株式会社 | 光情報記録再生装置の再生回路 |
| US5629912A (en) * | 1995-01-30 | 1997-05-13 | Sony Corporation | Focusing servo controlling apparatus |
| US5802031A (en) * | 1997-01-28 | 1998-09-01 | International Business Machines Corporation | Programmable PPM/PWM writing system for optical disk |
-
1997
- 1997-11-14 KR KR1019970060066A patent/KR100239468B1/ko not_active Expired - Fee Related
-
1998
- 1998-02-27 US US09/031,672 patent/US6014348A/en not_active Expired - Fee Related
- 1998-03-09 JP JP10056531A patent/JPH11162038A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US6014348A (en) | 2000-01-11 |
| KR100239468B1 (ko) | 2000-01-15 |
| KR19990039841A (ko) | 1999-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2655682B2 (ja) | 光磁気情報記録再生装置 | |
| US5485433A (en) | Information recording method and apparatus for determining whether recording has been correctly performed | |
| EP0552936A1 (en) | Optical medium recording apparatus and method | |
| KR960000826B1 (ko) | 광 디스크 정보 기록 재생장치의 서보회로 | |
| US6249490B1 (en) | Magneto-optical recording/reproducing method and apparatus | |
| JPH11162038A (ja) | 光磁気記録媒体から記録情報を読み取る装置及び方法 | |
| JPH10283689A (ja) | 情報記録再生装置 | |
| JP2841317B1 (ja) | 光磁気記録媒体から記録情報を再生する装置並びに方法 | |
| JP3286809B2 (ja) | 光磁気記録媒体から記録情報を再生する装置及び方法 | |
| JP2000200450A (ja) | 光磁気記録再生方法及び装置 | |
| US6205098B1 (en) | Optical reproduction method and optical information apparatus | |
| JP3503764B2 (ja) | 光磁気記録方法及び光磁気記録装置 | |
| US6614737B2 (en) | Optical reproduction method and optical information device | |
| JP2899477B2 (ja) | 光ディスク装置 | |
| JP2998912B2 (ja) | 光ディスク記録装置 | |
| JP2935375B2 (ja) | 光磁気記録再生装置 | |
| JPH08161788A (ja) | 光学装置 | |
| JPH05174502A (ja) | 情報記録装置 | |
| JPH05144111A (ja) | 情報記録再生装置 | |
| JPH05225706A (ja) | データ検出装置 | |
| JPH11306611A (ja) | 光磁気記録媒体の判別回路と判別方法、およびそれを用いた再生装置、記録装置、記録再生装置。 | |
| JPH10269644A (ja) | 情報記録装置 | |
| JPH11296927A (ja) | 光磁気記録媒体の判別回路と判別方法、およびそれを用いた再生装置、記録装置、記録再生装置。 | |
| JPH03241550A (ja) | 光磁気情報装置 | |
| JPH06243595A (ja) | 記録再生装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050309 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050309 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070807 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080129 |