CN1161756C - 磁头装置的检查方法和磁头装置的检查装置 - Google Patents
磁头装置的检查方法和磁头装置的检查装置 Download PDFInfo
- Publication number
- CN1161756C CN1161756C CNB001209264A CN00120926A CN1161756C CN 1161756 C CN1161756 C CN 1161756C CN B001209264 A CNB001209264 A CN B001209264A CN 00120926 A CN00120926 A CN 00120926A CN 1161756 C CN1161756 C CN 1161756C
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- mentioned
- head assembly
- recording medium
- writing function
- 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
Images
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
- G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
-
- 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP223531/1999 | 1999-08-06 | ||
JP22353199A JP3507368B2 (ja) | 1999-08-06 | 1999-08-06 | 磁気ヘッド装置の検査方法及び磁気ヘッド装置の検査装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1283844A CN1283844A (zh) | 2001-02-14 |
CN1161756C true CN1161756C (zh) | 2004-08-11 |
Family
ID=16799621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001209264A Expired - Fee Related CN1161756C (zh) | 1999-08-06 | 2000-08-04 | 磁头装置的检查方法和磁头装置的检查装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6407544B1 (zh) |
JP (1) | JP3507368B2 (zh) |
CN (1) | CN1161756C (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6667614B1 (en) * | 2000-02-16 | 2003-12-23 | Seagate Technology Llc | Transfer curve tester for testing magnetic recording heads |
KR100500239B1 (ko) * | 2002-12-16 | 2005-07-11 | 삼성전자주식회사 | 픽업 검사장치 |
JP2006040504A (ja) * | 2004-07-30 | 2006-02-09 | Fujitsu Ltd | 磁気ヘッドの評価装置、評価方法及びディスク |
JP2006179107A (ja) * | 2004-12-22 | 2006-07-06 | Hitachi High-Tech Electronics Engineering Co Ltd | 磁気特性検査装置及びそれを用いた検査方法 |
US7622915B2 (en) | 2007-06-29 | 2009-11-24 | Hitachi High-Technologies Corporation | Magnetic head test method and magnetic head tester |
JP2009051671A (ja) | 2007-07-31 | 2009-03-12 | Hitachi High-Technologies Corp | トレイで供給される電子部品のトレイハンドリング機構およびこれを利用した電子部品の検査装置 |
US8174781B2 (en) * | 2008-05-05 | 2012-05-08 | Hitachi Global Storage Technologies, Netherlands B.V. | Method for screening magnetic-recording heads |
US8179134B2 (en) | 2008-06-30 | 2012-05-15 | Hitachi High-Technologies Corporation | Handling robot of magnetic head assembly, magnetic head test method and magnetic head tester |
US9053712B1 (en) * | 2014-05-07 | 2015-06-09 | Western Digital Technologies, Inc. | Data storage device reading servo sector while writing data sector |
JP2022025918A (ja) * | 2020-07-30 | 2022-02-10 | 株式会社東芝 | 磁気ディスク装置 |
CN112485029B (zh) * | 2020-11-04 | 2022-10-18 | 网易有道(杭州)智能科技有限公司 | 一种扫描设备测试系统、方法和装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479098A (en) * | 1993-03-15 | 1995-12-26 | Trace Mountain Products, Inc. | Loop-back circuit for testing a magnetic recording system with simultaneous read and write functions |
KR100208383B1 (ko) * | 1997-06-03 | 1999-07-15 | 윤종용 | 하드 디스크 드라이브의 용량변환 생산방법 |
-
1999
- 1999-08-06 JP JP22353199A patent/JP3507368B2/ja not_active Expired - Fee Related
-
2000
- 2000-08-04 CN CNB001209264A patent/CN1161756C/zh not_active Expired - Fee Related
- 2000-08-04 US US09/632,577 patent/US6407544B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1283844A (zh) | 2001-02-14 |
US6407544B1 (en) | 2002-06-18 |
JP3507368B2 (ja) | 2004-03-15 |
JP2001052319A (ja) | 2001-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: TDK CORP. Free format text: FORMER OWNER: ALPS ELECTRIC CO., LTD. Effective date: 20080125 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080125 Address after: Japan's all of central Tokyo Patentee after: TDK Corp. Address before: Tokyo, Japan Patentee before: Alps Electric Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040811 Termination date: 20120804 |