DE69114731D1 - Vorrichtung zum Lesen länglicher Segmente aus einem sich bewegenden Aufzeichnungsträger. - Google Patents
Vorrichtung zum Lesen länglicher Segmente aus einem sich bewegenden Aufzeichnungsträger.Info
- Publication number
- DE69114731D1 DE69114731D1 DE69114731T DE69114731T DE69114731D1 DE 69114731 D1 DE69114731 D1 DE 69114731D1 DE 69114731 T DE69114731 T DE 69114731T DE 69114731 T DE69114731 T DE 69114731T DE 69114731 D1 DE69114731 D1 DE 69114731D1
- Authority
- DE
- Germany
- Prior art keywords
- reading
- record carrier
- elongated segments
- moving record
- moving
- 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
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10554—Moving beam scanning
- G06K7/10594—Beam path
- G06K7/10683—Arrangement of fixed elements
- G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
-
- 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
-
- 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
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1362—Mirrors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/7805—Recording or playback not using inductive heads, e.g. magneto-optical, thermomagnetic, magnetostrictive, galvanomagnetic
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9000546A FR2657190B1 (fr) | 1990-01-18 | 1990-01-18 | Dispositif de lecture de segments oblongs d'un support en defilement. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69114731D1 true DE69114731D1 (de) | 1996-01-04 |
DE69114731T2 DE69114731T2 (de) | 1996-04-18 |
Family
ID=9392892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69114731T Expired - Fee Related DE69114731T2 (de) | 1990-01-18 | 1991-01-11 | Vorrichtung zum Lesen länglicher Segmente aus einem sich bewegenden Aufzeichnungsträger. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5218595A (de) |
EP (1) | EP0439383B1 (de) |
JP (1) | JP3071845B2 (de) |
KR (1) | KR100208543B1 (de) |
DE (1) | DE69114731T2 (de) |
FR (1) | FR2657190B1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05184178A (ja) * | 1992-01-09 | 1993-07-23 | Nissan Motor Co Ltd | アクチュエータ制御装置 |
FR2723242B1 (fr) * | 1994-07-26 | 1996-08-30 | Thomson Csf | Tete magnetique a element saturable et dispositif matriciel comportant un ensemble de tetes magnetiques |
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 |
US20030054203A1 (en) * | 1997-10-22 | 2003-03-20 | Quantum Corporation, A California Corporation | Magnetic tape |
US6084740A (en) | 1997-12-01 | 2000-07-04 | Storage Technology Corporation | Optical servo system for a tape drive |
US7153366B1 (en) | 1998-03-24 | 2006-12-26 | Quantum Corporation | Systems and method for forming a servo pattern on a magnetic tape |
DE19913382C2 (de) * | 1998-03-24 | 2002-08-14 | Quantum Corp | Mehrkanaliges Magnetbandsystem mit einem optischen Spur-Servo |
US7029726B1 (en) | 1999-07-27 | 2006-04-18 | Quantum Corporation | Method for forming a servo pattern on a magnetic tape |
US6246535B1 (en) * | 1998-11-13 | 2001-06-12 | Quantum Corporation | Optical apparatus for tracking a magnetic tape |
FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
US20030189782A1 (en) * | 2002-04-04 | 2003-10-09 | Storage Technology Corporation | Optical servo system for a tape drive |
FR2797514B3 (fr) | 1999-08-10 | 2001-10-12 | Thomson Csf | Dispositif de lecture magneto-optique pour bandes magnetiques multipistes |
FR2802696B1 (fr) | 1999-12-17 | 2002-07-19 | Thomson Csf | Lecteur magneto optique optimise par le polariseur de lumiere incidente |
US6940676B1 (en) | 2000-06-07 | 2005-09-06 | Quantum Corporation | Triple push-pull optical tracking system |
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 |
US7187515B2 (en) * | 2003-02-05 | 2007-03-06 | Quantum Corporation | Method and system for tracking magnetic media with embedded optical servo tracks |
US6980390B2 (en) * | 2003-02-05 | 2005-12-27 | Quantum Corporation | Magnetic media with embedded optical servo tracks |
US8040070B2 (en) * | 2008-01-23 | 2011-10-18 | Cree, Inc. | Frequency converted dimming signal generation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2266932B1 (de) * | 1973-03-02 | 1977-09-02 | Thomson Brandt | |
FR2431810B1 (fr) * | 1978-07-17 | 1985-06-28 | Agfa Gevaert Ag | Dispositif pour la lecture electronique de films super 8 en vue de les visionner sur un televiseur |
US4551827A (en) * | 1979-10-26 | 1985-11-05 | Peter A. Custer | Fluorescent soundtrack readout system |
NL8020445A (de) * | 1979-10-26 | 1981-09-01 | Peter Anderson Custer En George R. Bird Beiden Te Princeton, New Jersey, Ver. St. V. Am. | |
EP0092420A1 (de) * | 1982-04-19 | 1983-10-26 | Xerox Corporation | Vorrichtungen zur Informationsspeicherung |
GB2120000B (en) * | 1982-04-28 | 1986-04-09 | Tdk Corp | Magnetic recording and reproduction |
FR2526987B1 (fr) * | 1982-05-14 | 1987-07-03 | Bull Sa | Procede opto-electronique de lecture d'informations contenues sur un support magnetique et circuit pour le mettre en oeuvre |
JPH0677351B2 (ja) * | 1986-11-15 | 1994-09-28 | ソニー株式会社 | 光学ピツクアツプ装置 |
US4835380A (en) * | 1987-06-11 | 1989-05-30 | U. S. Philips Corporation | Scanning device for an optical recording and/or reproducing apparatus |
US4959824A (en) * | 1987-07-31 | 1990-09-25 | Minolta Camera Kabushiki Kaisha | Optical information record/pickup head assembly |
DE3781157T2 (de) * | 1987-10-30 | 1993-03-04 | Ibm Deutschland | Buendelanalyse-vorrichtung fuer geraete zur optischen aufzeichnung. |
-
1990
- 1990-01-18 FR FR9000546A patent/FR2657190B1/fr not_active Expired - Lifetime
-
1991
- 1991-01-10 KR KR1019910000236A patent/KR100208543B1/ko not_active IP Right Cessation
- 1991-01-11 EP EP91400062A patent/EP0439383B1/de not_active Expired - Lifetime
- 1991-01-11 DE DE69114731T patent/DE69114731T2/de not_active Expired - Fee Related
- 1991-01-18 JP JP3075548A patent/JP3071845B2/ja not_active Expired - Fee Related
- 1991-01-18 US US07/643,520 patent/US5218595A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR100208543B1 (ko) | 1999-07-15 |
FR2657190B1 (fr) | 1995-07-21 |
EP0439383A1 (de) | 1991-07-31 |
DE69114731T2 (de) | 1996-04-18 |
KR910014884A (ko) | 1991-08-31 |
JPH04219656A (ja) | 1992-08-10 |
EP0439383B1 (de) | 1995-11-22 |
US5218595A (en) | 1993-06-08 |
JP3071845B2 (ja) | 2000-07-31 |
FR2657190A1 (fr) | 1991-07-19 |
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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 |