UA13357A - Пристрій для модуляції магhітhого потоку при термомагhітhому записі промеhем лазеру - Google Patents

Пристрій для модуляції магhітhого потоку при термомагhітhому записі промеhем лазеру

Info

Publication number
UA13357A
UA13357A UA4356647A UA4356647A UA13357A UA 13357 A UA13357 A UA 13357A UA 4356647 A UA4356647 A UA 4356647A UA 4356647 A UA4356647 A UA 4356647A UA 13357 A UA13357 A UA 13357A
Authority
UA
Ukraine
Prior art keywords
magnetic strength
writing
laser ray
thremomagnetic
strength modulation
Prior art date
Application number
UA4356647A
Other languages
English (en)
Russian (ru)
Inventor
Йоханнес Леопольдус Бакс
Петрус Крістіанус Йоханнус Хувен
Original Assignee
Н.В.Філіпс Глоелампенфабрікен
Н.В.Филипс Глоелампенфабрикен
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Н.В.Філіпс Глоелампенфабрікен, Н.В.Филипс Глоелампенфабрикен filed Critical Н.В.Філіпс Глоелампенфабрікен
Publication of UA13357A publication Critical patent/UA13357A/uk

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
    • H03K17/687—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
    • H03K17/6872—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 using complementary field-effect transistors
    • 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
    • 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
    • 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
    • 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

Abstract

Винахід стосується накопичення інформації, зокрема пристроїв магнітооптичного запису для реєстрування інформаційного сигналу на магнітооптичному носії. Пристрій для модуляції магнітного потоку при термомагнітному запису променем лазера містить блок збудження, вхідну шину кодуючого сигналу з блоком кодування вхідного інформаційного сигналу, конденсатор та джерело напруги. В пристрій введено блок переривання струму, що містить перший та другий діоди, а блок збудження містить перший та другий буферні підсилювачі, перший та другий ключі.
UA4356647A 1987-10-14 1988-10-11 Пристрій для модуляції магhітhого потоку при термомагhітhому записі промеhем лазеру UA13357A (uk)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8702451 1987-10-14

Publications (1)

Publication Number Publication Date
UA13357A true UA13357A (uk) 1997-02-28

Family

ID=19850764

Family Applications (1)

Application Number Title Priority Date Filing Date
UA4356647A UA13357A (uk) 1987-10-14 1988-10-11 Пристрій для модуляції магhітhого потоку при термомагhітhому записі промеhем лазеру

Country Status (12)

Country Link
EP (1) EP0312143B1 (uk)
JP (1) JP2598312B2 (uk)
KR (1) KR970001977B1 (uk)
CN (1) CN1022353C (uk)
BR (1) BR8805266A (uk)
CA (1) CA1319986C (uk)
DE (1) DE3883342T2 (uk)
ES (1) ES2043789T3 (uk)
HK (1) HK140194A (uk)
MX (1) MX172384B (uk)
SU (1) SU1757475A3 (uk)
UA (1) UA13357A (uk)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838858A1 (de) * 1988-11-17 1990-05-23 Thomson Brandt Gmbh Schaltungsanordnung zur umkehrung eines magnetfeldes
DE3907057A1 (de) * 1989-03-04 1990-09-13 Thomson Brandt Gmbh Schaltungsanordnung zur umkehrung eines magnetfeldes
US5402052A (en) * 1989-05-25 1995-03-28 International Business Machines Corporation Inductive current switching system with resonance
US5121369A (en) * 1989-05-25 1992-06-09 International Business Machines Corporation Method and apparatus for direct overwriting information on a magneto-optical recording medium using constant laser beam modulated magnetic field generator
NL8901345A (nl) * 1989-05-29 1990-12-17 Philips Nv Werkwijze en inrichting voor het optekenen van signalen op een registratiedrager, alsmede een meetwerkwijze en meetinrichting voor toepassing in de optekenwerkwijze en optekeninrichting, alsmede een registratiedrager.
FR2647940B1 (fr) * 1989-06-02 1994-03-04 Thomson Csf Circuit de commande de modulation du champ magnetique pour l'enregistrement d'une memoire magneto-optique
NL8902728A (nl) * 1989-11-06 1991-06-03 Philips Nv Werkwijze en inrichting voor het inschrijven en uitlezen van een magneto-optische registratiedrager.
JPH0469802A (ja) * 1990-07-11 1992-03-05 Sony Corp 磁気変調コイル駆動回路
JP2733127B2 (ja) * 1990-08-07 1998-03-30 シャープ株式会社 光磁気記録装置
US5404342A (en) * 1992-01-16 1995-04-04 Sony Corporation Magnetic head device for magneto-optical disc system and magnetic head driving circuit
JP2976697B2 (ja) * 1992-05-29 1999-11-10 松下電器産業株式会社 光磁気ディスク用変調磁界発生装置
TW234182B (uk) * 1992-11-20 1994-11-11 Philips Electronics Nv
JP3179276B2 (ja) * 1993-03-26 2001-06-25 キヤノン株式会社 磁気ヘッド駆動方法および光磁気記録方法
JP3365435B2 (ja) * 1993-06-23 2003-01-14 キヤノン株式会社 光磁気記録装置
EP0700565B1 (en) * 1994-02-14 2000-07-12 Koninklijke Philips Electronics N.V. Method and recording device for recording signals on a record carrier
JP3659988B2 (ja) * 1994-07-14 2005-06-15 シャープ株式会社 光磁気記録装置
US6018538A (en) * 1997-06-18 2000-01-25 Lucent Technologies Inc. High speed non-biased semiconductor laser dione driver for high speed digital communication
JP2001023262A (ja) 1999-07-12 2001-01-26 Fujitsu Ltd 磁気ヘッドの巻線構造及び駆動回路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050735A (en) * 1979-03-13 1981-01-07 Decca Ltd Protecting oscillator transistor
JPH0619863B2 (ja) * 1984-06-13 1994-03-16 株式会社日立製作所 光磁気情報記憶方法及び装置
IT1182673B (it) * 1985-11-12 1987-10-05 Iveco Fiat Dispositivo atto a trasferire in modo rapido una corrente in un carico di tipo induttivo
JPS63160041U (uk) * 1987-04-06 1988-10-19

Also Published As

Publication number Publication date
SU1757475A3 (ru) 1992-08-23
JP2598312B2 (ja) 1997-04-09
CA1319986C (en) 1993-07-06
HK140194A (en) 1994-12-16
DE3883342D1 (de) 1993-09-23
CN1032597A (zh) 1989-04-26
DE3883342T2 (de) 1994-03-10
EP0312143A1 (en) 1989-04-19
KR970001977B1 (ko) 1997-02-20
ES2043789T3 (es) 1994-01-01
KR890007235A (ko) 1989-06-19
CN1022353C (zh) 1993-10-06
BR8805266A (pt) 1989-05-30
JPH01130302A (ja) 1989-05-23
EP0312143B1 (en) 1993-08-18
MX172384B (es) 1993-12-15

Similar Documents

Publication Publication Date Title
UA13357A (uk) Пристрій для модуляції магhітhого потоку при термомагhітhому записі промеhем лазеру
TW325559B (en) Arrangement comprising a magnetic write head, and write amplifier with capacitive feed-forward compensation
KR890004280A (ko) 자기헤드 구동회로
KR910013005A (ko) 정보 카드장치
CA2081864A1 (en) External Magnetic Field Generation Apparatus
MY110012A (en) Circuit arrangement for the reversal of a magnetic field.
AU5742990A (en) Magnetic field modulation control circuit for recording a magneto-optic memory
EP0519729A2 (en) Magnetic head driving circuit
GB752415A (en) Improvements in or relating to devices for reading magnetically recorded coded information
US5329408A (en) Magnetic field modulation magnet-optical recording apparatus in which an FM modulator and a magnetic head driving circuit are used in common
MY104478A (en) Circuitry for reversing a magnetic field.
MY110712A (en) Magneto-optical recording apparatus.
US5233577A (en) Magneto-optical recording apparatus and energizing circuit for use in such a magneto-optical recording apparatus
KR850005693A (ko) 자기 기록 재생장치의 두출 신호 기록회로
EP0352099A3 (en) An external magnetic field device for a magnetooptical information recording and reproducing apparatus
JPS55117729A (en) Magnetic head
SU1571655A1 (ru) Устройство дл магнитной записи-воспроизведени аналогового сигнала
JPH0477362B2 (uk)
HU9203954D0 (en) Circuit arrangement for turning magnetic field
JPS5727452A (en) Magnetic recorder and reproducer
ES2113312A1 (es) Dispositivo de capitacion y reproduccion de velocidades aplicable a un juego de competicion de vehiculos en miniatura guiados por carriles alimentados por corriente electrica.
UA6051A1 (uk) Пристрій магнітного запису-відтворення
GB855021A (en) Improvements in magnetic recording systems
JPS58189916U (ja) 誘導式測定器
JPS5958461U (ja) 複写機用交流高電圧電源装置