DE69325263T2 - Verfahren zum lezen eines aufzeichnungstragers und system das dieses verfahren anwendet - Google Patents
Verfahren zum lezen eines aufzeichnungstragers und system das dieses verfahren anwendetInfo
- Publication number
- DE69325263T2 DE69325263T2 DE69325263T DE69325263T DE69325263T2 DE 69325263 T2 DE69325263 T2 DE 69325263T2 DE 69325263 T DE69325263 T DE 69325263T DE 69325263 T DE69325263 T DE 69325263T DE 69325263 T2 DE69325263 T2 DE 69325263T2
- Authority
- DE
- Germany
- Prior art keywords
- diaphony
- track
- circuit
- signal
- coefficient
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000012937 correction Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 230000005374 Kerr effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
- G11B21/103—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on tapes
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4969—Details for track selection or addressing
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9215474A FR2699724B1 (fr) | 1992-12-22 | 1992-12-22 | Procédé de lecture d'un support d'enregistrement et système appliquant ce procédé. |
| PCT/FR1993/001279 WO1994015335A1 (fr) | 1992-12-22 | 1993-12-21 | Procede de lecture d'un support d'enregistrement et systeme appliquant ce procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69325263D1 DE69325263D1 (de) | 1999-07-15 |
| DE69325263T2 true DE69325263T2 (de) | 1999-11-04 |
Family
ID=9436911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69325263T Expired - Lifetime DE69325263T2 (de) | 1992-12-22 | 1993-12-21 | Verfahren zum lezen eines aufzeichnungstragers und system das dieses verfahren anwendet |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5493553A (en:Method) |
| EP (1) | EP0627114B1 (en:Method) |
| JP (1) | JP3573456B2 (en:Method) |
| KR (1) | KR100276938B1 (en:Method) |
| CN (1) | CN1059972C (en:Method) |
| DE (1) | DE69325263T2 (en:Method) |
| ES (1) | ES2133531T3 (en:Method) |
| FR (1) | FR2699724B1 (en:Method) |
| TW (1) | TW237540B (en:Method) |
| WO (1) | WO1994015335A1 (en:Method) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2699723B1 (fr) * | 1992-12-22 | 1995-01-20 | Thomson Csf | Support d'enregistrement d'informations, enregistreur, lecteur et procédé d'enregistrement. |
| US5883750A (en) * | 1992-12-22 | 1999-03-16 | Thomson-Csf | Method and system for the magnetic recording of information elements and information medium by providing current correction for cross-talk magnetic flux |
| FR2727589B1 (fr) * | 1994-11-25 | 1997-01-03 | Thomson Csf | Dispositif et systeme de lecture |
| FR2728716B1 (fr) * | 1994-12-23 | 1997-01-31 | Thomson Csf | Dispositif et systeme de lecture |
| FR2733346B1 (fr) * | 1995-04-21 | 1997-05-23 | Thomson Csf | Procede de lecture d'informations |
| US5701283A (en) * | 1995-11-15 | 1997-12-23 | Zen Research N.V. | Method and apparatus for high speed optical storage device |
| US5959953A (en) * | 1996-07-03 | 1999-09-28 | Zen Research Nv | Methods and apparatus for performing cross-talk correction in a multi-track optical disk reader based on magnification error |
| US6430125B1 (en) | 1996-07-03 | 2002-08-06 | Zen Research (Ireland), Ltd. | Methods and apparatus for detecting and correcting magnification error in a multi-beam optical disk drive |
| US5729512A (en) * | 1996-07-03 | 1998-03-17 | Zen Research N.V. | Magnification and tracking error correction system for multiple track optical disk reader |
| FR2779863B1 (fr) * | 1998-06-16 | 2000-08-25 | Thomson Csf | Systeme de suivi de piste pour l'enregistrement/lecture d'un support d'informations et support d'enregistrement |
| US6275349B1 (en) | 1998-12-02 | 2001-08-14 | Storage Technology Corporation | Integrated optical tracking system for magnetic media |
| JP4129856B2 (ja) | 1999-07-09 | 2008-08-06 | タレス | データ媒体及び記録媒体の記録／読取に有用なトラック追跡システム |
| FR2802696B1 (fr) * | 1999-12-17 | 2002-07-19 | Thomson Csf | Lecteur magneto optique optimise par le polariseur de lumiere incidente |
| US7203379B1 (en) * | 2000-09-29 | 2007-04-10 | Ess Technology, Inc. | Digital image cross talk correction |
| US6940805B2 (en) * | 2001-10-23 | 2005-09-06 | Dragsholm Wireless Holdings Llc | Methods and apparatus for cross-talk and jitter reduction in multi-beam optical disks |
| US7405907B2 (en) * | 2004-08-03 | 2008-07-29 | O-Mass As | Adjacent magnetoresistive read head and method for obtaining position error signal |
| FR2889618A1 (fr) * | 2005-08-02 | 2007-02-09 | Hi Stor Technologies Sa | Dispositif de lecture de bandes magnetiques et procede de lecture d'une bande magnetique |
| US7307809B2 (en) * | 2005-08-18 | 2007-12-11 | Quantum Corporation | Correlation servo for positioning recording head |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3158846A (en) * | 1961-01-23 | 1964-11-24 | Silverman Daniel | Information retrieval systems |
| GB1478339A (en) * | 1975-12-19 | 1977-06-29 | British Broadcasting Corp | Multiple track record replay |
| JPS5933618A (ja) * | 1982-08-16 | 1984-02-23 | Hitachi Ltd | トラツク位置ずれ検知方式 |
| JPS61287056A (ja) * | 1985-06-12 | 1986-12-17 | Toshiba Corp | 光情報記録再生装置 |
| JP2645025B2 (ja) * | 1987-09-04 | 1997-08-25 | 株式会社日立製作所 | 光記録再生方法 |
| US5181161A (en) * | 1989-04-21 | 1993-01-19 | Nec Corporation | Signal reproducing apparatus for optical recording and reproducing equipment with compensation of crosstalk from nearby tracks and method for the same |
| JP2548426B2 (ja) * | 1989-06-02 | 1996-10-30 | 松下電器産業株式会社 | 信号記録／再生装置 |
| FR2665010B1 (fr) * | 1990-07-20 | 1992-09-18 | Thomson Csf | Dispositif magnetique de lecture a reseau matriciel de tetes de lecture. |
| FR2689293B1 (fr) * | 1992-03-27 | 1994-05-13 | Thomson Csf | Dispositif de lecture d'un ensemble d'elements resistifs. |
-
1992
- 1992-12-22 FR FR9215474A patent/FR2699724B1/fr not_active Expired - Fee Related
-
1993
- 1993-12-21 ES ES94902844T patent/ES2133531T3/es not_active Expired - Lifetime
- 1993-12-21 US US08/284,653 patent/US5493553A/en not_active Expired - Lifetime
- 1993-12-21 WO PCT/FR1993/001279 patent/WO1994015335A1/fr active IP Right Grant
- 1993-12-21 EP EP94902844A patent/EP0627114B1/fr not_active Expired - Lifetime
- 1993-12-21 JP JP51487494A patent/JP3573456B2/ja not_active Expired - Fee Related
- 1993-12-21 KR KR1019940702860A patent/KR100276938B1/ko not_active Expired - Fee Related
- 1993-12-21 DE DE69325263T patent/DE69325263T2/de not_active Expired - Lifetime
- 1993-12-22 CN CN93121662A patent/CN1059972C/zh not_active Expired - Fee Related
-
1994
- 1994-02-08 TW TW083101085A patent/TW237540B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW237540B (en:Method) | 1995-01-01 |
| ES2133531T3 (es) | 1999-09-16 |
| KR950700589A (ko) | 1995-01-16 |
| KR100276938B1 (ko) | 2001-01-15 |
| EP0627114A1 (fr) | 1994-12-07 |
| DE69325263D1 (de) | 1999-07-15 |
| FR2699724B1 (fr) | 1995-01-20 |
| US5493553A (en) | 1996-02-20 |
| JPH07504293A (ja) | 1995-05-11 |
| JP3573456B2 (ja) | 2004-10-06 |
| FR2699724A1 (fr) | 1994-06-24 |
| CN1059972C (zh) | 2000-12-27 |
| CN1090413A (zh) | 1994-08-03 |
| EP0627114B1 (fr) | 1999-06-09 |
| WO1994015335A1 (fr) | 1994-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| R082 | Change of representative |
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