CN1661705A - 提供普适写入预补偿的方法及设备 - Google Patents
提供普适写入预补偿的方法及设备 Download PDFInfo
- Publication number
- CN1661705A CN1661705A CN200510052112.2A CN200510052112A CN1661705A CN 1661705 A CN1661705 A CN 1661705A CN 200510052112 A CN200510052112 A CN 200510052112A CN 1661705 A CN1661705 A CN 1661705A
- Authority
- CN
- China
- Prior art keywords
- data
- signal
- precompensation
- meticulous
- write
- 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
Images
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
- G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Abstract
Description
Claims (34)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/787,291 US7002764B2 (en) | 2004-02-26 | 2004-02-26 | Method and apparatus for providing generalized write pre-compensation |
US10/787,291 | 2004-02-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1661705A true CN1661705A (zh) | 2005-08-31 |
CN100414632C CN100414632C (zh) | 2008-08-27 |
Family
ID=34886744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100521122A Expired - Fee Related CN100414632C (zh) | 2004-02-26 | 2005-02-25 | 提供普适写入预补偿的方法及设备 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7002764B2 (zh) |
JP (1) | JP2005243222A (zh) |
CN (1) | CN100414632C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107004667A (zh) * | 2014-10-29 | 2017-08-01 | 高通股份有限公司 | 具有内置电阻式存储器的电可重配置中介体 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7583459B1 (en) * | 2004-11-18 | 2009-09-01 | Marvell International Ltd. | Method and apparatus for write precompensation in a magnetic recording system |
JP2007057828A (ja) | 2005-08-24 | 2007-03-08 | Sony Corp | Popラベル及び電子機器 |
JP2007157184A (ja) * | 2005-11-30 | 2007-06-21 | Samsung Electronics Co Ltd | 情報記録再生装置 |
US20080186618A1 (en) * | 2007-02-05 | 2008-08-07 | Broadcom Corporation, A California Corporation | Architecture for write pre-compensation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6352307A (ja) | 1986-08-20 | 1988-03-05 | Toshiba Corp | 磁気デイスク装置 |
US5359631A (en) | 1992-09-30 | 1994-10-25 | Cirrus Logic, Inc. | Timing recovery circuit for synchronous waveform sampling |
US5872665A (en) | 1995-07-28 | 1999-02-16 | Hewlett-Packard Company | Programmable write equalization for magnetic data recording |
US5734680A (en) * | 1995-08-09 | 1998-03-31 | Hewlett-Packard Co. | Analog implementation of a partial response maximum likelihood (PRML) read channel |
TW369648B (en) | 1996-09-02 | 1999-09-11 | Koninkl Philips Electronics Nv | Device for write compensation in magnetic media recording |
US20020015247A1 (en) | 1997-07-02 | 2002-02-07 | David S. Rosky | High resolution wide range write precompensation |
US5986830A (en) | 1997-07-30 | 1999-11-16 | Cirrus Logic, Inc. | Read/write channel write precompensation system and method using one or more delay clocks |
JPH11250407A (ja) | 1998-02-27 | 1999-09-17 | Hewlett Packard Japan Ltd | Nlts補正回路 |
US6337778B1 (en) * | 1999-05-25 | 2002-01-08 | Western Digital Technologies, Inc. | Disk drive employing vector addition of primary phase write clock signals for generating secondary phase write clock signal |
US6369661B1 (en) | 2000-11-20 | 2002-04-09 | Cirrus Logic, Inc. | Phase interpolation circuits and methods and systems using the same |
US6426662B1 (en) | 2001-11-12 | 2002-07-30 | Pericom Semiconductor Corp. | Twisted-ring oscillator and delay line generating multiple phases using differential dividers and comparators to match delays |
-
2004
- 2004-02-26 US US10/787,291 patent/US7002764B2/en not_active Expired - Fee Related
-
2005
- 2005-01-31 JP JP2005022705A patent/JP2005243222A/ja active Pending
- 2005-02-25 CN CNB2005100521122A patent/CN100414632C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107004667A (zh) * | 2014-10-29 | 2017-08-01 | 高通股份有限公司 | 具有内置电阻式存储器的电可重配置中介体 |
Also Published As
Publication number | Publication date |
---|---|
CN100414632C (zh) | 2008-08-27 |
US7002764B2 (en) | 2006-02-21 |
US20050190473A1 (en) | 2005-09-01 |
JP2005243222A (ja) | 2005-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HGST NETHERLANDS BV Free format text: FORMER NAME: HITACHI GLOBAL STORAGE TECH |
|
CP01 | Change in the name or title of a patent holder |
Address after: Amsterdam Patentee after: Hitachi Global Storage Technologies Netherlands B. V. Address before: Amsterdam Patentee before: Hitachi Global Storage Tech |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190116 Address after: American California Patentee after: Western Digital Technologies, Inc. Address before: Amsterdam Patentee before: Hitachi Global Storage Technologies Netherlands B. V. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20190225 |