DE69227439T2 - Vorrichtung zur Ansteuerung eines Magnetkopfes - Google Patents
Vorrichtung zur Ansteuerung eines MagnetkopfesInfo
- Publication number
- DE69227439T2 DE69227439T2 DE69227439T DE69227439T DE69227439T2 DE 69227439 T2 DE69227439 T2 DE 69227439T2 DE 69227439 T DE69227439 T DE 69227439T DE 69227439 T DE69227439 T DE 69227439T DE 69227439 T2 DE69227439 T2 DE 69227439T2
- Authority
- DE
- Germany
- Prior art keywords
- controlling
- magnetic head
- magnetic
- head
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
- H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
-
- 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
- G11B11/10508—Recording by modulating only the magnetic field at the transducer
-
- 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
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0026—Pulse recording
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3341428A JP2859766B2 (ja) | 1991-12-24 | 1991-12-24 | 磁気ヘッド駆動回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69227439D1 DE69227439D1 (de) | 1998-12-03 |
DE69227439T2 true DE69227439T2 (de) | 1999-05-12 |
Family
ID=18346001
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69232783T Expired - Fee Related DE69232783T2 (de) | 1991-12-24 | 1992-12-24 | Magnetkopfantriebsvorrichtung |
DE69227439T Expired - Fee Related DE69227439T2 (de) | 1991-12-24 | 1992-12-24 | Vorrichtung zur Ansteuerung eines Magnetkopfes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69232783T Expired - Fee Related DE69232783T2 (de) | 1991-12-24 | 1992-12-24 | Magnetkopfantriebsvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5351155A (de) |
EP (2) | EP0550267B1 (de) |
JP (1) | JP2859766B2 (de) |
KR (1) | KR0124030B1 (de) |
CA (1) | CA2085763C (de) |
DE (2) | DE69232783T2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5587851A (en) * | 1991-12-24 | 1996-12-24 | Sharp Kabushiki Kaisha | Magnetic head driving device with prerecording energization |
JPH0729234A (ja) * | 1993-07-07 | 1995-01-31 | Sony Corp | 光磁気記録再生装置 |
JP3107265B2 (ja) * | 1993-08-06 | 2000-11-06 | キヤノン株式会社 | 磁気ヘッド駆動装置及び磁気記録装置 |
JPH07182717A (ja) * | 1993-12-24 | 1995-07-21 | Sharp Corp | 光磁気記録再生装置 |
US5559643A (en) * | 1994-02-28 | 1996-09-24 | Sony Corporation | Apparatus for recording a digital signal onto a recording medium at one of a plurality of data recording rates |
KR0183824B1 (ko) * | 1995-08-16 | 1999-04-15 | 김광호 | 자기기록장치 및 방법 |
JPH1186203A (ja) * | 1997-09-03 | 1999-03-30 | Canon Inc | 磁気ヘッド駆動装置及び光磁気記録装置 |
JP2001176142A (ja) * | 1999-12-16 | 2001-06-29 | Canon Inc | 磁気ヘッド駆動回路及び光磁気記録装置 |
CN112837887B (zh) * | 2019-11-25 | 2022-09-09 | 北京华航无线电测量研究所 | 一种时分复用体制的局部交变磁场发生装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62129905A (ja) * | 1985-11-30 | 1987-06-12 | Toshiba Corp | フロツピ−デイスク装置の磁気ヘツド駆動回路 |
JPH0743805B2 (ja) * | 1986-10-07 | 1995-05-15 | ソニー株式会社 | 磁気ヘツド駆動回路 |
JPS63244402A (ja) * | 1987-03-31 | 1988-10-11 | Sony Corp | 記録用磁界発生回路 |
JPH0833974B2 (ja) * | 1987-08-19 | 1996-03-29 | ソニー株式会社 | 磁気ヘッド駆動回路 |
DE3836125A1 (de) * | 1988-10-22 | 1990-05-03 | Thomson Brandt Gmbh | Schaltungsanordnung zur umkehrung eines magnetfeldes |
DE3838858A1 (de) * | 1988-11-17 | 1990-05-23 | Thomson Brandt Gmbh | Schaltungsanordnung zur umkehrung eines magnetfeldes |
JPH03157839A (ja) * | 1989-11-15 | 1991-07-05 | Matsushita Electric Ind Co Ltd | 光磁気ディスク用高周波変調磁界発生装置 |
JP2795757B2 (ja) * | 1991-06-21 | 1998-09-10 | シャープ株式会社 | 磁気ヘッド駆動回路 |
JPH05342508A (ja) * | 1992-02-19 | 1993-12-24 | Canon Inc | 磁気ヘッド駆動装置、磁気記録装置及び情報記録方法 |
-
1991
- 1991-12-24 JP JP3341428A patent/JP2859766B2/ja not_active Expired - Fee Related
-
1992
- 1992-12-18 US US07/993,728 patent/US5351155A/en not_active Expired - Lifetime
- 1992-12-18 CA CA002085763A patent/CA2085763C/en not_active Expired - Fee Related
- 1992-12-24 DE DE69232783T patent/DE69232783T2/de not_active Expired - Fee Related
- 1992-12-24 EP EP92311820A patent/EP0550267B1/de not_active Expired - Lifetime
- 1992-12-24 DE DE69227439T patent/DE69227439T2/de not_active Expired - Fee Related
- 1992-12-24 EP EP98104433A patent/EP0855704B1/de not_active Expired - Lifetime
- 1992-12-24 KR KR1019920025502A patent/KR0124030B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR930014518A (ko) | 1993-07-23 |
US5351155A (en) | 1994-09-27 |
EP0855704B1 (de) | 2002-09-18 |
JPH05174307A (ja) | 1993-07-13 |
CA2085763C (en) | 1997-01-14 |
CA2085763A1 (en) | 1993-06-25 |
EP0855704A2 (de) | 1998-07-29 |
EP0550267B1 (de) | 1998-10-28 |
DE69232783T2 (de) | 2003-04-10 |
JP2859766B2 (ja) | 1999-02-24 |
DE69227439D1 (de) | 1998-12-03 |
DE69232783D1 (de) | 2002-10-24 |
KR0124030B1 (ko) | 1997-11-28 |
EP0855704A3 (de) | 2000-08-16 |
EP0550267A1 (de) | 1993-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |