DE69220439D1 - Anordnung zum Wiedergeben eines digitalen Signals von einer Spur auf einem Aufzeichnungsträger unter Verwendung eines Schreibkopfs mit einem MR-Element - Google Patents
Anordnung zum Wiedergeben eines digitalen Signals von einer Spur auf einem Aufzeichnungsträger unter Verwendung eines Schreibkopfs mit einem MR-ElementInfo
- Publication number
- DE69220439D1 DE69220439D1 DE69220439T DE69220439T DE69220439D1 DE 69220439 D1 DE69220439 D1 DE 69220439D1 DE 69220439 T DE69220439 T DE 69220439T DE 69220439 T DE69220439 T DE 69220439T DE 69220439 D1 DE69220439 D1 DE 69220439D1
- Authority
- DE
- Germany
- Prior art keywords
- filter means
- track
- reproducing
- signal
- arrangement
- 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
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
-
- 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
- G11B5/09—Digital recording
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
- G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
- G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91202549 | 1991-10-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69220439D1 true DE69220439D1 (de) | 1997-07-24 |
DE69220439T2 DE69220439T2 (de) | 1998-01-02 |
Family
ID=8207915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69220439T Expired - Fee Related DE69220439T2 (de) | 1991-10-01 | 1992-09-25 | Anordnung zum Wiedergeben eines digitalen Signals von einer Spur auf einem Aufzeichnungsträger unter Verwendung eines Schreibkopfs mit einem MR-Element |
Country Status (7)
Country | Link |
---|---|
US (1) | US5335121A (de) |
EP (1) | EP0535737B1 (de) |
JP (1) | JPH05225507A (de) |
KR (1) | KR930008725A (de) |
AT (1) | ATE154719T1 (de) |
DE (1) | DE69220439T2 (de) |
SG (1) | SG44875A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1337108B1 (de) * | 1990-09-10 | 2005-07-27 | Starsight Telecast, Inc. | Fernseh-Programmtafel-System |
JP2923161B2 (ja) * | 1993-03-12 | 1999-07-26 | シャープ株式会社 | 磁気テープ再生装置 |
JPH06342504A (ja) * | 1993-05-31 | 1994-12-13 | Canon Inc | 再生装置 |
US5501526A (en) * | 1993-06-15 | 1996-03-26 | Nsk Ltd. | Sliding bearing |
JPH07192398A (ja) * | 1993-12-27 | 1995-07-28 | Sharp Corp | 再生波形等化回路 |
US6038090A (en) * | 1996-04-03 | 2000-03-14 | International Business Machines Corporation | Method and apparatus for improving baseline recovery of an MR head using a programmable recovery time constant |
US5862007A (en) * | 1996-04-18 | 1999-01-19 | Samsung Electronics Co., Ltd. | Method and apparatus for removing baseline shifts in a read signal using filters |
JPH11112289A (ja) * | 1997-09-26 | 1999-04-23 | Internatl Business Mach Corp <Ibm> | デジタルフィルタ、サーボ制御装置及びディスクドライブ装置 |
US6906883B2 (en) * | 2000-09-14 | 2005-06-14 | Samsung Electronics Ltd., Co. | Servo defect management scheme in hard disk drives |
US6724553B2 (en) | 2001-03-26 | 2004-04-20 | Samsung Electronics Co., Ltd. | Method and apparatus for generating the optimum read timing for read and write offset of a magneto resistive head |
US6489762B2 (en) | 2001-04-26 | 2002-12-03 | Samsung Electronics Co., Ltd. | Method to detect junction induced signal instability from GMR/MR heads |
KR100468764B1 (ko) * | 2001-09-13 | 2005-01-29 | 삼성전자주식회사 | 디스크 위의 위치 정보를 제공하는 방법 및 장치 |
US6791780B2 (en) | 2001-10-15 | 2004-09-14 | Samsung Electronics Co., Inc. | Method and apparatus for providing write current optimization |
US7035031B2 (en) * | 2001-11-26 | 2006-04-25 | Samsung Electronics Co., Ltd. | Installation of heater into hard disk drive to improve reliability and performance at low temperature |
FI20012313A (fi) | 2001-11-26 | 2003-05-27 | Genelec Oy | Menetelmä matalataajuista ääntä muokkaavan modaalisen ekvalisaattorin suunnittelemiseksi |
EP1414036A4 (de) * | 2002-05-28 | 2008-01-16 | Sony Corp | Signalverarbeitungsgeraet und -verfahren, und wiedergabegeraet fuer digitale daten |
US20090309262A1 (en) * | 2008-06-17 | 2009-12-17 | Century, Inc. | Manufacturing apparatus and method for producing a preform |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011585A (en) * | 1974-07-12 | 1977-03-08 | Pioneer Electronic Corporation | Magnetic recording reproducing system |
US3975772A (en) * | 1975-06-02 | 1976-08-17 | International Business Machines Corporation | Double shielded magnetorestive sensing element |
US4314288A (en) * | 1980-08-29 | 1982-02-02 | Ampex Corporation | Amplitude and phase equalizer |
JPS63182919A (ja) * | 1987-01-24 | 1988-07-28 | Nippon Telegr & Teleph Corp <Ntt> | 線路等化回路 |
JPS63276910A (ja) * | 1987-05-08 | 1988-11-15 | Oki Electric Ind Co Ltd | 定遅延フィルタ |
JPH01229516A (ja) * | 1988-03-10 | 1989-09-13 | Sony Corp | 自動等化器 |
JPH02168408A (ja) * | 1988-09-19 | 1990-06-28 | Hitachi Ltd | 記録再生用磁気ヘッドおよびその製造方法 |
US5031194A (en) * | 1989-08-11 | 1991-07-09 | Bell Communications Research, Inc. | Wideband digital equalizers for subscriber loops |
-
1992
- 1992-09-23 KR KR1019920017300A patent/KR930008725A/ko active IP Right Grant
- 1992-09-25 AT AT92202945T patent/ATE154719T1/de not_active IP Right Cessation
- 1992-09-25 EP EP92202945A patent/EP0535737B1/de not_active Expired - Lifetime
- 1992-09-25 DE DE69220439T patent/DE69220439T2/de not_active Expired - Fee Related
- 1992-09-25 SG SG1996008950A patent/SG44875A1/en unknown
- 1992-10-01 JP JP4263731A patent/JPH05225507A/ja active Pending
-
1993
- 1993-10-25 US US08/142,647 patent/US5335121A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0535737A2 (de) | 1993-04-07 |
ATE154719T1 (de) | 1997-07-15 |
JPH05225507A (ja) | 1993-09-03 |
KR930008725A (ko) | 1993-05-21 |
US5335121A (en) | 1994-08-02 |
SG44875A1 (en) | 1997-12-19 |
EP0535737B1 (de) | 1997-06-18 |
DE69220439T2 (de) | 1998-01-02 |
EP0535737A3 (en) | 1993-05-12 |
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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 |