JP2020529697A5 - - Google Patents
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- Publication number
- JP2020529697A5 JP2020529697A5 JP2020505229A JP2020505229A JP2020529697A5 JP 2020529697 A5 JP2020529697 A5 JP 2020529697A5 JP 2020505229 A JP2020505229 A JP 2020505229A JP 2020505229 A JP2020505229 A JP 2020505229A JP 2020529697 A5 JP2020529697 A5 JP 2020529697A5
- Authority
- JP
- Japan
- Prior art keywords
- saturation
- readable program
- computer
- magnetic tape
- simulated current
- 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.)
- Granted
Links
- 238000012795 verification Methods 0.000 claims 7
- 238000000034 method Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 claims 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/665,340 US9953671B1 (en) | 2017-07-31 | 2017-07-31 | Saturation-based verification of magnetic tape storage |
| US15/665,340 | 2017-07-31 | ||
| PCT/US2018/044459 WO2019027938A1 (en) | 2017-07-31 | 2018-07-31 | MAGNETIC TAPE STORAGE SATURATION-BASED VERIFICATION |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020529697A JP2020529697A (ja) | 2020-10-08 |
| JP2020529697A5 true JP2020529697A5 (https=) | 2021-08-19 |
| JP7129468B2 JP7129468B2 (ja) | 2022-09-01 |
Family
ID=61951782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020505229A Active JP7129468B2 (ja) | 2017-07-31 | 2018-07-31 | 磁気テープ記憶装置の飽和ベースの検証 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US9953671B1 (https=) |
| EP (1) | EP3662472B1 (https=) |
| JP (1) | JP7129468B2 (https=) |
| CN (2) | CN113838481B (https=) |
| WO (1) | WO2019027938A1 (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9953671B1 (en) * | 2017-07-31 | 2018-04-24 | Oracle International Corporation | Saturation-based verification of magnetic tape storage |
| JP7396287B2 (ja) * | 2019-03-27 | 2023-12-12 | ソニーグループ株式会社 | サーボ信号ベリファイ装置、サーボライタ、磁気記録テープの製造方法、及びサーボ信号読取ヘッド |
| US11626134B1 (en) * | 2021-12-29 | 2023-04-11 | Seagate Technology Llc | Media design and write technique for creating neutral polarity transition zones |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654542B2 (ja) * | 1987-08-28 | 1994-07-20 | 富士通株式会社 | 光学記憶装置 |
| JPH0827885B2 (ja) * | 1989-07-12 | 1996-03-21 | 富士電機株式会社 | 磁気ヘッドの適正書き込み電流決定方法 |
| US5473550A (en) * | 1994-03-21 | 1995-12-05 | Seagate Technology, Inc. | Fast calibration using microsteps |
| US5689384A (en) * | 1994-06-30 | 1997-11-18 | International Business Machines Corporation | Timing based servo system for magnetic tape systems |
| US5793558A (en) * | 1996-06-05 | 1998-08-11 | Western Digital Corporation | Method for seek time optimization employing voice-coil motor current saturation level to define an adaptive deceleration profile |
| US6181505B1 (en) * | 1998-06-26 | 2001-01-30 | Seagate Technology Llc | Synchronous digital demodulator with integrated read and servo channels |
| US6674605B1 (en) * | 1999-04-21 | 2004-01-06 | Seagate Technology Llc | PQ enhanced dual stage servo controller |
| GB2366658B (en) * | 1999-06-24 | 2003-11-05 | Seagate Technology Llc | Method and apparatus for maintaining servo stability during actuator saturation |
| US6525892B1 (en) * | 2000-01-28 | 2003-02-25 | Western Digital Technologies, Inc. | Method of calibrating a write current-setting for servo writing a disk drive |
| JP2002367101A (ja) * | 2001-06-07 | 2002-12-20 | Fuji Photo Film Co Ltd | サーボ信号検査装置 |
| US6865050B2 (en) * | 2001-06-07 | 2005-03-08 | Fuji Photo Film Co., Ltd. | Servo signal recording device and servo signal verifying device using edge detection |
| JP2003006826A (ja) * | 2001-06-27 | 2003-01-10 | Fuji Photo Film Co Ltd | サーボ信号検査装置 |
| US7072133B1 (en) * | 2001-10-15 | 2006-07-04 | Imation Corp. | Servo mark verify head |
| JP3966512B2 (ja) * | 2003-04-22 | 2007-08-29 | 富士フイルム株式会社 | サーボライトヘッドアセンブリ及びサーボライタ |
| US7486471B2 (en) * | 2006-03-03 | 2009-02-03 | Seagate Technology Llc | Methods and apparatus for constraining transducer velocity based on disk rotational latency while seeking in a disk drive |
| US7679852B2 (en) * | 2007-06-28 | 2010-03-16 | Seagate Technology Llc | Adjustment of read/write clock edge timing |
| US8027121B2 (en) * | 2009-11-04 | 2011-09-27 | International Business Machines Corporation | Positioning coarse servo actuator of tape servo system to allow fine servo actuator to follow tape shift excursions |
| US8526132B2 (en) * | 2010-02-03 | 2013-09-03 | HGST Netherlands, B.V. | Servo patterning compatible with planarization of patterned magnetic disks |
| US8059362B2 (en) * | 2010-03-02 | 2011-11-15 | International Business Machines Corporation | Positioning a coarse actuator of compound actuator tape servo system at midpoint of maximum peaks of lateral tape movement |
| GB2525222A (en) * | 2014-04-16 | 2015-10-21 | Ibm | Method and apparatus for operating a tape storage device |
| US9953671B1 (en) * | 2017-07-31 | 2018-04-24 | Oracle International Corporation | Saturation-based verification of magnetic tape storage |
-
2017
- 2017-07-31 US US15/665,340 patent/US9953671B1/en active Active
-
2018
- 2018-02-12 US US15/893,989 patent/US10217480B2/en active Active
- 2018-07-31 CN CN202111140123.1A patent/CN113838481B/zh active Active
- 2018-07-31 JP JP2020505229A patent/JP7129468B2/ja active Active
- 2018-07-31 CN CN201880048377.0A patent/CN110945585B/zh active Active
- 2018-07-31 WO PCT/US2018/044459 patent/WO2019027938A1/en not_active Ceased
- 2018-07-31 EP EP18756055.2A patent/EP3662472B1/en active Active
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