DE69321066T2 - Magnetplattengerät - Google Patents
MagnetplattengerätInfo
- Publication number
- DE69321066T2 DE69321066T2 DE69321066T DE69321066T DE69321066T2 DE 69321066 T2 DE69321066 T2 DE 69321066T2 DE 69321066 T DE69321066 T DE 69321066T DE 69321066 T DE69321066 T DE 69321066T DE 69321066 T2 DE69321066 T2 DE 69321066T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic disk
- disk device
- magnetic
- disk
- 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
- 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
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
-
- 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
- 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
- G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
-
- 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
- G11B5/48—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
- G11B5/488—Disposition of heads
- G11B5/4886—Disposition of heads relative to rotating disc
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04276165A JP3141571B2 (ja) | 1992-10-14 | 1992-10-14 | ディジタル磁気記録再生装置 |
JP4280014A JPH06131812A (ja) | 1992-10-19 | 1992-10-19 | 磁気ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69321066D1 DE69321066D1 (de) | 1998-10-22 |
DE69321066T2 true DE69321066T2 (de) | 1999-03-18 |
Family
ID=26551783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69321066T Expired - Fee Related DE69321066T2 (de) | 1992-10-14 | 1993-10-12 | Magnetplattengerät |
Country Status (4)
Country | Link |
---|---|
US (3) | US5828509A (de) |
EP (1) | EP0593021B1 (de) |
KR (1) | KR100270855B1 (de) |
DE (1) | DE69321066T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6301087B1 (en) * | 1994-07-14 | 2001-10-09 | Nomai S.A. | Magneto-resistive removable hard disk cartridge and disk drive and quadrature embedded servo bursts |
JP3823195B2 (ja) * | 1996-10-08 | 2006-09-20 | ソニー株式会社 | クロック生成装置およびディスク駆動装置 |
US6084731A (en) * | 1996-12-26 | 2000-07-04 | Sony Corporation | Disk-like information recording medium, information recording/reproducing apparatus, and synchronizing method utilizing rotational angle |
EP0860825A3 (de) * | 1997-02-25 | 1999-05-12 | Hitachi, Ltd. | Informationsspeicherungsvorrichtung mit taktsynchronen Wandlern im gepulsten Betrieb |
JP2002519801A (ja) * | 1997-08-28 | 2002-07-02 | シーゲイト テクノロジー エルエルシー | サンプルデータシステムにおけるビットエラーレート決定方法および装置 |
US6877116B1 (en) | 1997-08-28 | 2005-04-05 | Seagate Technology Llc | Method and apparatus for determining bit error rate in a sampled data system without requiring read channel circuitry |
US6122124A (en) * | 1998-10-20 | 2000-09-19 | Hewlett-Packard Co. | Servo system and method with digitally controlled oscillator |
US6545844B1 (en) | 1999-10-19 | 2003-04-08 | Seagate Technology Llc | Clock head with spacer |
JP4595182B2 (ja) * | 2000-09-07 | 2010-12-08 | ソニー株式会社 | 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム提供媒体 |
US7050251B2 (en) * | 2003-06-25 | 2006-05-23 | Imation Corp. | Encoding techniques for patterned magnetic media |
US7324294B2 (en) * | 2004-10-29 | 2008-01-29 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording disk drive with patterned media and circuit for generating timing pulses from the pattern |
JP2008077795A (ja) * | 2006-09-22 | 2008-04-03 | Fujitsu Ltd | パターンドメディアのクロック抽出方法、パターンドメディアのクロック抽出回路及びパターンドメディア |
US7667912B2 (en) * | 2007-07-03 | 2010-02-23 | Seagate Technology Llc | Retry and re-read for write synchronization |
US8433160B2 (en) * | 2009-01-30 | 2013-04-30 | Cleveland Electric Laboratories | Smart fastener and smart insert for a fastener using fiber Bragg gratings to measure strain and temperature |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011514B2 (ja) * | 1976-08-20 | 1985-03-26 | ソニー株式会社 | 映像信号の記録装置 |
US4231071A (en) * | 1978-07-17 | 1980-10-28 | Digital Equipment Corporation | Reader for data recorded on magnetic disks at plural densities |
FR2481501B1 (fr) * | 1980-04-25 | 1985-09-13 | Philips Nv | Porteur d'enregistrement comportant une structure d'information lisible par voie optique et dispositif pour la lecture d'un tel porteur d'enregistrement |
US4432026A (en) * | 1981-08-10 | 1984-02-14 | Ampex Corporation | Apparatus and method for determining read head position |
DE3241400A1 (de) * | 1982-11-09 | 1984-05-10 | Nixdorf Computer Ag, 4790 Paderborn | Verfahren und einrichtung zur fortlaufenden aufzeichnung von informationssignalen vorbestimmter laenge auf eine magnetspeicherspur |
US4561028A (en) * | 1983-08-18 | 1985-12-24 | Sony Corporation | Apparatus and method for reading and writing data on a magnetic disc |
JPS60232795A (ja) * | 1984-05-01 | 1985-11-19 | Matsushita Electric Ind Co Ltd | カラ−映像信号記録再生装置 |
JP2523509B2 (ja) * | 1986-06-30 | 1996-08-14 | 株式会社東芝 | 磁気記録再生装置 |
JPH0743894B2 (ja) * | 1986-06-30 | 1995-05-15 | 株式会社東芝 | 磁気記録再生装置 |
EP0363551B1 (de) * | 1988-10-17 | 1994-12-07 | International Business Machines Corporation | Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung |
US5060068A (en) * | 1988-10-31 | 1991-10-22 | James E. Lindstrom | Audio/video distribution system |
US4935835A (en) * | 1988-11-10 | 1990-06-19 | Insite Peripherals, Inc. | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature |
JPH02214429A (ja) * | 1989-02-10 | 1990-08-27 | Toshiba Corp | 車両蛍光灯用バッテリ充電装置 |
JPH02226535A (ja) * | 1989-02-27 | 1990-09-10 | Yokogawa Electric Corp | 光磁気ディスクのタイミング信号生成回路 |
JPH0373476A (ja) * | 1989-05-17 | 1991-03-28 | Mitsubishi Electric Corp | 記録装置 |
JPH03201643A (ja) * | 1989-12-28 | 1991-09-03 | Nec Corp | 復調キャリア位相制御方式 |
JPH03214429A (ja) * | 1990-01-19 | 1991-09-19 | Fujitsu Ltd | 光ディスク装置 |
JP2830352B2 (ja) * | 1990-04-11 | 1998-12-02 | ソニー株式会社 | デジタルデータ検出装置 |
US5255136A (en) * | 1990-08-17 | 1993-10-19 | Quantum Corporation | High capacity submicro-winchester fixed disk drive |
US5182740A (en) * | 1990-09-20 | 1993-01-26 | Hitachi, Ltd. | Method and apparatus for correctly storing data recorded on a rotational disc-shaped recording medium despite occurrence of clock synchronization disorder |
US5475540A (en) * | 1991-06-04 | 1995-12-12 | Quantum Corporation | Magnetic data storage disk drive with data block sequencing by using ID fields after embedded servo sectors |
US5367411A (en) * | 1991-08-02 | 1994-11-22 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus with reproducing head of magnetoresistive type having control of magnetic bias level |
US5293276A (en) * | 1992-01-24 | 1994-03-08 | Fujitsu Limited | Method for generating a reference signal from unique servo mark pattern detection |
JPH05314661A (ja) * | 1992-05-08 | 1993-11-26 | Ricoh Co Ltd | 光情報記録媒体 |
US5341249A (en) * | 1992-08-27 | 1994-08-23 | Quantum Corporation | Disk drive using PRML class IV sampling data detection with digital adaptive equalization |
US5260703A (en) * | 1992-08-27 | 1993-11-09 | Quantum Corporation | Data encoding and decoding within PRML class IV sampling data detection channel of disk drive |
US5412516A (en) * | 1993-02-25 | 1995-05-02 | Hewlett-Packard Company | Data storage system with a dual-gap head using a dual-mode flexible disk controller |
US5425540A (en) * | 1994-09-19 | 1995-06-20 | Senel; Cecile | Selectively magnetically attractive game board assembly |
-
1993
- 1993-10-12 EP EP93116506A patent/EP0593021B1/de not_active Expired - Lifetime
- 1993-10-12 DE DE69321066T patent/DE69321066T2/de not_active Expired - Fee Related
- 1993-10-13 KR KR1019930021165A patent/KR100270855B1/ko not_active IP Right Cessation
-
1995
- 1995-06-06 US US08/471,243 patent/US5828509A/en not_active Expired - Lifetime
-
1997
- 1997-02-18 US US08/800,551 patent/US5828510A/en not_active Expired - Lifetime
- 1997-04-29 US US08/840,414 patent/US5786954A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0593021B1 (de) | 1998-09-16 |
EP0593021A3 (en) | 1996-01-10 |
KR100270855B1 (ko) | 2000-11-01 |
US5828510A (en) | 1998-10-27 |
KR940009973A (ko) | 1994-05-24 |
US5828509A (en) | 1998-10-27 |
US5786954A (en) | 1998-07-28 |
EP0593021A2 (de) | 1994-04-20 |
DE69321066D1 (de) | 1998-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69323583D1 (de) | Magnetplatteneinheit | |
DE4392439T1 (de) | Magnetplattenvorrichtung | |
DE69218514D1 (de) | Magnetisches Wiedergabegerät | |
DE69128770D1 (de) | Magnetplatteneinheit | |
DE69209532T2 (de) | Magnetplatte und Magnetplattenvorrichtung | |
DE69530753D1 (de) | Magnetplattengerät | |
DE69216776T2 (de) | Magnetische Plattenanordnung | |
DE69424575D1 (de) | Plattengerät | |
DE69625859D1 (de) | Magnetische Plattenvorrichtung | |
DE69410612T2 (de) | Magnetplattenvorrichtung | |
DE69321066T2 (de) | Magnetplattengerät | |
DE69325746D1 (de) | Magnetisches Aufzeichnungs-/Wiedergabegerät | |
DE69426576T2 (de) | Magnetische Platteneinheit | |
DE69318590T2 (de) | Magnetisches Aufzeichnungs-/Wiedergabegerät | |
DE69322589D1 (de) | Magnetisches Aufnahme-/Wiedergabegerät | |
DE69426226T2 (de) | Plattenvorrichtung | |
DE69220616D1 (de) | Magnetplatteneinheit | |
DE69325938T2 (de) | Magneto-optisches Plattengerät | |
DE69333784D1 (de) | Plattengerät | |
DE69327081T2 (de) | Magnetisches Aufzeichnungs-/Wiedergabegerät | |
DE69321442T2 (de) | Magnetplatteneinheit | |
DE69329970D1 (de) | Plattengerät | |
DE69322602T2 (de) | Magnetisches Aufzeichnungs-/Wiedergabegerät | |
DE69217750D1 (de) | Magnetisches Wiedergabegerät | |
KR940024240U (ko) | 자기원반 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |