DE69024969T2 - Servospurfolgesystem für spiralenabtastrecorder - Google Patents
Servospurfolgesystem für spiralenabtastrecorderInfo
- Publication number
- DE69024969T2 DE69024969T2 DE69024969T DE69024969T DE69024969T2 DE 69024969 T2 DE69024969 T2 DE 69024969T2 DE 69024969 T DE69024969 T DE 69024969T DE 69024969 T DE69024969 T DE 69024969T DE 69024969 T2 DE69024969 T2 DE 69024969T2
- Authority
- DE
- Germany
- Prior art keywords
- servo
- head
- tape
- recorder
- servo tracking
- 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
- G11B5/48—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
- G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Radar Systems Or Details Thereof (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/433,977 US5068757A (en) | 1989-11-09 | 1989-11-09 | Servo tracking for helical scan recorder |
PCT/US1990/006324 WO1991007746A1 (en) | 1989-11-09 | 1990-11-06 | Servo tracking for helical scan recorder |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69024969D1 DE69024969D1 (de) | 1996-02-29 |
DE69024969T2 true DE69024969T2 (de) | 1996-07-11 |
Family
ID=23722322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69024969T Expired - Fee Related DE69024969T2 (de) | 1989-11-09 | 1990-11-06 | Servospurfolgesystem für spiralenabtastrecorder |
Country Status (8)
Country | Link |
---|---|
US (1) | US5068757A (de) |
EP (1) | EP0500760B1 (de) |
JP (1) | JPH0715772B2 (de) |
AT (1) | ATE133288T1 (de) |
AU (1) | AU638905B2 (de) |
CA (1) | CA2066189C (de) |
DE (1) | DE69024969T2 (de) |
WO (1) | WO1991007746A1 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR930005340B1 (ko) * | 1991-01-09 | 1993-06-17 | 삼성전자 주식회사 | 비디오 테이프레코더의 헤드드럼 주행각도 조절장치 |
US5287478A (en) * | 1991-08-06 | 1994-02-15 | R-Byte, Inc. | Digital data tape storage system utilizing plurality of read/write heads with system diagnostic capability |
US5406425A (en) * | 1991-08-06 | 1995-04-11 | R-Byte, Inc. | ISO/IEC compatible digital audio tape digital data storage system with increased data transfer rate |
US5369285A (en) * | 1992-08-24 | 1994-11-29 | Exabyte Corporation | Method and apparatus for optical detection of cleaning medium in an information storage drive |
TW235360B (de) * | 1993-01-28 | 1994-12-01 | Philips Electronics Nv | |
US5349481A (en) * | 1993-06-10 | 1994-09-20 | Exabyte Corporation | Apparatus and method for distorted track data recovery by rewinding and re-reading the tape at a slower than nominal speed |
JP2644182B2 (ja) * | 1993-06-14 | 1997-08-25 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 多重トラック磁気テープ装置を初期化する装置及び方法 |
US5726826A (en) * | 1993-11-12 | 1998-03-10 | Exabyte Corporation | Capstanless helical drive system |
JP2892504B2 (ja) * | 1993-11-12 | 1999-05-17 | エクサバイト コーポレイション | ヘリカルスキャン記録機において媒体直線スピードを制御する方法および装置 |
US5426355A (en) * | 1993-11-12 | 1995-06-20 | Exabyte Corporation | Power-off motor deceleration control system |
JPH09500476A (ja) * | 1993-11-12 | 1997-01-14 | エクサバイト コーポレイション | ヘリカルスキャン記録機においてヘッドパラメータを決定しかつ使用する方法および装置 |
WO1995013571A1 (en) * | 1993-11-12 | 1995-05-18 | Exabyte Corporation | High performance power amplifier |
JPH09509276A (ja) * | 1993-11-12 | 1997-09-16 | エクサバイト コーポレイション | キャプスタンレスヘリカルドライブシステム |
US5978165A (en) * | 1997-03-27 | 1999-11-02 | Exabyte Corporation | Method of determining axial offset distance in helical scan tape drive |
US6307701B1 (en) | 1998-10-20 | 2001-10-23 | Ecrix Corporation | Variable speed recording method and apparatus for a magnetic tape drive |
US6367047B1 (en) | 1998-10-20 | 2002-04-02 | Ecrix | Multi-level error detection and correction technique for data storage recording device |
US6381706B1 (en) | 1998-10-20 | 2002-04-30 | Ecrix Corporation | Fine granularity rewrite method and apparatus for data storage device |
US6246551B1 (en) | 1998-10-20 | 2001-06-12 | Ecrix Corporation | Overscan helical scan head for non-tracking tape subsystems reading at up to 1X speed and methods for simulation of same |
US6367048B1 (en) | 1998-11-16 | 2002-04-02 | Mcauliffe Richard | Method and apparatus for logically rejecting previously recorded track residue from magnetic media |
US6603618B1 (en) | 1998-11-16 | 2003-08-05 | Exabyte Corporation | Method and system for monitoring and adjusting tape position using control data packets |
US6421805B1 (en) | 1998-11-16 | 2002-07-16 | Exabyte Corporation | Rogue packet detection and correction method for data storage device |
US6308298B1 (en) | 1998-11-16 | 2001-10-23 | Ecrix Corporation | Method of reacquiring clock synchronization on a non-tracking helical scan tape device |
US6462899B1 (en) | 2000-01-04 | 2002-10-08 | International Business Machines Corporation | Initialization and calibration of a recording system track following servo |
US6364234B1 (en) | 2000-03-10 | 2002-04-02 | Michael Donald Langiano | Tape loop/slack prevention method and apparatus for tape drive |
US6624960B1 (en) | 2000-03-10 | 2003-09-23 | Exabyte Corporation | Current sensing drum/cleaning wheel positioning method and apparatus for magnetic storage system |
US6433945B1 (en) * | 2000-07-14 | 2002-08-13 | Exabyte Corporation | Compensating write data in transformer-coupled recording system using DC content code |
US6697209B2 (en) | 2000-11-09 | 2004-02-24 | Exabyte Corporation | Phase based time domain tracking for helical scan tape drive |
US6778361B2 (en) | 2000-12-07 | 2004-08-17 | Exabyte Corporation | Non-symmetric helical scanner architecture for high track density |
US7106535B2 (en) * | 2001-09-12 | 2006-09-12 | Exabyte Corporation | Method and apparatus for maintaining consistent track pitch in helical scan recorder |
US6985323B2 (en) * | 2001-09-12 | 2006-01-10 | Exabyte Corporation | Alternating-azimuth angle helical track format using grouped same-azimuth angle heads |
US6809897B2 (en) | 2002-01-07 | 2004-10-26 | Exabyte Corporation | Direct threading helical tape path for single-reel tape cartridge |
US20030225966A1 (en) * | 2002-05-31 | 2003-12-04 | Jorgen Frandsen | Serverless network data storage operation managed by peripheral device |
US7157884B2 (en) * | 2004-03-26 | 2007-01-02 | James Scott Hacsi | Method and circuit for energizing and de-energizing an electric energy storage device |
US20060204209A1 (en) * | 2005-03-09 | 2006-09-14 | Exabyte Corporation | Pause strategy for magnetic tape recording |
US7881008B2 (en) * | 2008-05-09 | 2011-02-01 | International Business Machines Corporation | Joint specification of servo format and servo reader parameters for tape drive systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5455406A (en) * | 1977-10-12 | 1979-05-02 | Nec Corp | Helical scanning type magnetic tape device |
JPS59112406A (ja) * | 1982-12-17 | 1984-06-28 | Sony Corp | Pcm信号の記録再生方法 |
JPS59157810A (ja) * | 1983-02-28 | 1984-09-07 | Sony Corp | デジタル信号の再生方法 |
JPH0687330B2 (ja) * | 1984-08-06 | 1994-11-02 | ソニー株式会社 | ディジタル信号の再生装置 |
JPS6166250A (ja) * | 1984-09-07 | 1986-04-05 | Sony Corp | トラツキング制御回路 |
JPS61196422A (ja) * | 1985-02-25 | 1986-08-30 | Sony Corp | ビデオ信号の記録装置 |
US4835628A (en) * | 1987-05-11 | 1989-05-30 | Exabyte Corporation | Apparatus and method for formatting and recording digital data on magnetic tape |
US4843495A (en) * | 1987-05-11 | 1989-06-27 | Exabyte Corporation | Cyclical servo zone tracking method and apparatus for helical scan recording devices |
US4845577A (en) * | 1987-05-11 | 1989-07-04 | Exabyte Corporation | Apparatus and method for enabling rapid searching of helically recorded magnetic tape |
-
1989
- 1989-11-09 US US07/433,977 patent/US5068757A/en not_active Expired - Lifetime
-
1990
- 1990-11-06 EP EP90917727A patent/EP0500760B1/de not_active Expired - Lifetime
- 1990-11-06 CA CA002066189A patent/CA2066189C/en not_active Expired - Fee Related
- 1990-11-06 WO PCT/US1990/006324 patent/WO1991007746A1/en active IP Right Grant
- 1990-11-06 DE DE69024969T patent/DE69024969T2/de not_active Expired - Fee Related
- 1990-11-06 AU AU68746/91A patent/AU638905B2/en not_active Ceased
- 1990-11-06 JP JP3500466A patent/JPH0715772B2/ja not_active Expired - Lifetime
- 1990-11-06 AT AT90917727T patent/ATE133288T1/de active
Also Published As
Publication number | Publication date |
---|---|
JPH05500582A (ja) | 1993-02-04 |
JPH0715772B2 (ja) | 1995-02-22 |
AU6874691A (en) | 1991-06-13 |
CA2066189A1 (en) | 1991-05-10 |
CA2066189C (en) | 1995-09-19 |
WO1991007746A1 (en) | 1991-05-30 |
DE69024969D1 (de) | 1996-02-29 |
US5068757A (en) | 1991-11-26 |
EP0500760A1 (de) | 1992-09-02 |
EP0500760B1 (de) | 1996-01-17 |
EP0500760A4 (en) | 1993-01-13 |
AU638905B2 (en) | 1993-07-08 |
ATE133288T1 (de) | 1996-02-15 |
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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 |