JPH0467241B2 - - Google Patents
Info
- Publication number
- JPH0467241B2 JPH0467241B2 JP2777483A JP2777483A JPH0467241B2 JP H0467241 B2 JPH0467241 B2 JP H0467241B2 JP 2777483 A JP2777483 A JP 2777483A JP 2777483 A JP2777483 A JP 2777483A JP H0467241 B2 JPH0467241 B2 JP H0467241B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- information
- magnetization
- recording medium
- recorded
- 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.)
- Expired
Links
- 230000005415 magnetization Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000005421 thermomagnetic effect Effects 0.000 description 1
Classifications
-
- 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
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
- G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
-
- 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
- G11B11/10526—Bulk initialisation or erasing, e.g. at least one whole information track with a single action
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2777483A JPS59154603A (ja) | 1983-02-23 | 1983-02-23 | 磁気記録・消去方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2777483A JPS59154603A (ja) | 1983-02-23 | 1983-02-23 | 磁気記録・消去方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59154603A JPS59154603A (ja) | 1984-09-03 |
| JPH0467241B2 true JPH0467241B2 (en]) | 1992-10-27 |
Family
ID=12230316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2777483A Granted JPS59154603A (ja) | 1983-02-23 | 1983-02-23 | 磁気記録・消去方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59154603A (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0799598B2 (ja) * | 1986-03-13 | 1995-10-25 | 富士通株式会社 | 光磁気記録書込方式 |
-
1983
- 1983-02-23 JP JP2777483A patent/JPS59154603A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59154603A (ja) | 1984-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4539662A (en) | Method and system for optically recording and playing back information on a recording medium having magnetization film thereon | |
| US4985881A (en) | Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter | |
| JPH0321961B2 (en]) | ||
| JPS605441A (ja) | 情報処理装置 | |
| JPS61198453A (ja) | 光磁気記録装置 | |
| JPH0467241B2 (en]) | ||
| JPS6330701B2 (en]) | ||
| JPH0381211B2 (en]) | ||
| JPH0445134Y2 (en]) | ||
| JPS61206947A (ja) | 同時消録型光磁気記録及び記録再生装置のピツクアツプ | |
| JPS59152551A (ja) | 光磁気記録装置 | |
| JP2872801B2 (ja) | 光磁気記録再生装置 | |
| JPS6234333A (ja) | 光学式情報記録再生装置 | |
| JPS5938949A (ja) | 磁気光学再生装置 | |
| JPS60147950A (ja) | 消去同時記録が可能な情報フアイル | |
| JP2667678B2 (ja) | 光磁気メモリ装置 | |
| JPS61206951A (ja) | 同時消録型の光磁気記録兼再生装置のピツクアツプ | |
| JPS61206950A (ja) | 同時消録型光磁気記録及び再生兼用装置のピツクアツプ | |
| JPS61206952A (ja) | 同時消録型の光磁気記録及び再生兼用装置のピツクアツプ | |
| JPH04295647A (ja) | オーバーライト用光学ヘッド | |
| JPS61206949A (ja) | 同時消録型光磁気記録兼再生装置のピツクアツプ | |
| JPS6212942A (ja) | 光磁気記録再生装置 | |
| JPS6116038A (ja) | 光情報記録再生装置 | |
| JPH076447A (ja) | 光磁気記録再生装置 | |
| JPS6035303A (ja) | 書き換え可能な光学式情報記録再生装置 |