FR2680268B1 - - Google Patents
Info
- Publication number
- FR2680268B1 FR2680268B1 FR9110177A FR9110177A FR2680268B1 FR 2680268 B1 FR2680268 B1 FR 2680268B1 FR 9110177 A FR9110177 A FR 9110177A FR 9110177 A FR9110177 A FR 9110177A FR 2680268 B1 FR2680268 B1 FR 2680268B1
- Authority
- FR
- France
- 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
-
- 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
- G11B11/12—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 optical means
- G11B11/14—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 optical means with reproducing by magnetic means
-
- 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
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
- G11B11/10547—Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
- G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
- Optical Head (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9110177A FR2680268A1 (fr) | 1991-08-09 | 1991-08-09 | Tete de lecture magneto-optique. |
| US07/922,876 US5392181A (en) | 1991-08-09 | 1992-07-31 | Magneto-optical reading head |
| DE69227486T DE69227486T2 (de) | 1991-08-09 | 1992-08-04 | Magnetooptischer Lesekopf |
| EP98101724A EP0844604A3 (fr) | 1991-08-09 | 1992-08-04 | Tête de lecture magnéto-optique |
| EP92402224A EP0527670B1 (fr) | 1991-08-09 | 1992-08-04 | Tête de lecture magnéto-optique |
| JP20909992A JP3481262B2 (ja) | 1991-08-09 | 1992-08-05 | 光学読取りシステム |
| KR1019920014320A KR100253716B1 (ko) | 1991-08-09 | 1992-08-10 | 광 판독 시스템 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9110177A FR2680268A1 (fr) | 1991-08-09 | 1991-08-09 | Tete de lecture magneto-optique. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2680268A1 FR2680268A1 (fr) | 1993-02-12 |
| FR2680268B1 true FR2680268B1 (US08188275-20120529-C00054.png) | 1995-04-21 |
Family
ID=9416096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9110177A Granted FR2680268A1 (fr) | 1991-08-09 | 1991-08-09 | Tete de lecture magneto-optique. |
Country Status (6)
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2656723B1 (fr) * | 1989-12-28 | 1995-07-21 | Thomson Consumer Electronics | Tete de lecture multipiste magneto-optique. |
| FR2701332B1 (fr) * | 1993-02-09 | 1995-03-10 | Thomson Csf | Tête de lecture magnéto-optique et appareil de lecture d'enregistrements magnétiques multipistes. |
| CA2137062A1 (en) * | 1993-12-08 | 1995-06-09 | Takumi Shimamori | Magneto-optical recording and reading-out method |
| EP0714504B1 (fr) * | 1994-06-17 | 1999-03-03 | Thomson-Csf | Projecteur a cristal liquide avec dispositif holographique de filtrage |
| FR2723243B1 (fr) * | 1994-07-26 | 1996-09-06 | Thomson Csf | Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation |
| TW294810B (US08188275-20120529-C00054.png) * | 1994-09-23 | 1997-01-01 | Philips Electronics Nv | |
| US6288980B1 (en) * | 1996-04-23 | 2001-09-11 | Garnetec Ltd. | Magneto-optical head for information reading |
| RU2115962C1 (ru) * | 1996-04-23 | 1998-07-20 | Гарнетек Лтд. | Магнитно-оптическая головка для считывания информации |
| FR2750787B1 (fr) * | 1996-07-05 | 1998-11-13 | Thomson Csf | Tete magnetique matricielle d'enregistrement/lecture et procede de realisation |
| US6775100B1 (en) * | 1997-05-05 | 2004-08-10 | Seagate Technology Llc | Laser assisted track width definition and radial control with magnetic recording |
| DE19846878A1 (de) * | 1998-10-13 | 2000-04-20 | Thomson Brandt Gmbh | Kopfanordnung zur Multispur-Aufzeichnung mit integrierter Bandführung |
| EP1727138B1 (en) * | 1998-11-09 | 2009-03-11 | Seiko Instruments Inc. | Near-field optical head and method for manufacturing same |
| FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
| FR2797514B3 (fr) * | 1999-08-10 | 2001-10-12 | Thomson Csf | Dispositif de lecture magneto-optique pour bandes magnetiques multipistes |
| FR2797710B1 (fr) * | 1999-08-20 | 2001-11-09 | Thomson Csf | Tete de lecture anti-abrasion |
| US7149173B2 (en) * | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
| FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
| US6716723B2 (en) * | 2002-06-05 | 2004-04-06 | Intel Corporation | Wafer cutting using laser marking |
| SG177518A1 (en) * | 2009-07-09 | 2012-02-28 | Bilcare Technologies Singapore Pte Ltd | A reading device able to identify a tag or an object adapted to be identified, related methods and systems |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4425023A (en) * | 1980-01-31 | 1984-01-10 | Canon Kabushiki Kaisha | Beam spot scanning device |
| NL192546C (nl) * | 1982-07-19 | 1997-09-02 | Nippon Telegraph & Telephone | Leeskop voor een met hoge dichtheid uitgevoerde magnetische registratie. |
| JPH0731834B2 (ja) * | 1984-04-20 | 1995-04-10 | 日本電信電話株式会社 | 高密度磁気光学再生ヘツド |
| US4654837A (en) * | 1985-09-06 | 1987-03-31 | Datatape Incorporated | Magneto-optic transducer with enhanced signal performance |
| JPH01118105A (ja) * | 1987-10-30 | 1989-05-10 | Brother Ind Ltd | 薄膜光機能素子 |
| SU1522281A1 (ru) * | 1988-02-25 | 1989-11-15 | Симферопольский государственный университет им.М.В.Фрунзе | Устройство дл оптического воспроизведени информации с носител магнитной записи |
| JPH01271946A (ja) * | 1988-04-22 | 1989-10-31 | Sony Corp | 磁気光再生ヘッド |
| FR2656723B1 (fr) * | 1989-12-28 | 1995-07-21 | Thomson Consumer Electronics | Tete de lecture multipiste magneto-optique. |
-
1991
- 1991-08-09 FR FR9110177A patent/FR2680268A1/fr active Granted
-
1992
- 1992-07-31 US US07/922,876 patent/US5392181A/en not_active Expired - Lifetime
- 1992-08-04 EP EP92402224A patent/EP0527670B1/fr not_active Expired - Lifetime
- 1992-08-04 DE DE69227486T patent/DE69227486T2/de not_active Expired - Fee Related
- 1992-08-04 EP EP98101724A patent/EP0844604A3/fr not_active Withdrawn
- 1992-08-05 JP JP20909992A patent/JP3481262B2/ja not_active Expired - Fee Related
- 1992-08-10 KR KR1019920014320A patent/KR100253716B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0844604A2 (fr) | 1998-05-27 |
| FR2680268A1 (fr) | 1993-02-12 |
| US5392181A (en) | 1995-02-21 |
| EP0527670B1 (fr) | 1998-11-04 |
| KR100253716B1 (ko) | 2000-05-01 |
| KR930004963A (ko) | 1993-03-23 |
| EP0844604A3 (fr) | 2000-12-06 |
| EP0527670A1 (fr) | 1993-02-17 |
| DE69227486D1 (de) | 1998-12-10 |
| JPH06180883A (ja) | 1994-06-28 |
| JP3481262B2 (ja) | 2003-12-22 |
| DE69227486T2 (de) | 1999-04-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name | ||
| ST | Notification of lapse |
Effective date: 20100430 |