DE69023372D1 - Zuverlässigkeitsverbesserung von nichtflüchtigen Datenspuren einer Speichervorrichtung. - Google Patents

Zuverlässigkeitsverbesserung von nichtflüchtigen Datenspuren einer Speichervorrichtung.

Info

Publication number
DE69023372D1
DE69023372D1 DE69023372T DE69023372T DE69023372D1 DE 69023372 D1 DE69023372 D1 DE 69023372D1 DE 69023372 T DE69023372 T DE 69023372T DE 69023372 T DE69023372 T DE 69023372T DE 69023372 D1 DE69023372 D1 DE 69023372D1
Authority
DE
Germany
Prior art keywords
storage device
improved reliability
data tracks
volatile data
volatile
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
Application number
DE69023372T
Other languages
English (en)
Other versions
DE69023372T2 (de
Inventor
Richard Leo Galbraith
Nyles Norbert Heise
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE69023372D1 publication Critical patent/DE69023372D1/de
Application granted granted Critical
Publication of DE69023372T2 publication Critical patent/DE69023372T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
DE69023372T 1989-03-13 1990-02-21 Zuverlässigkeitsverbesserung von nichtflüchtigen Datenspuren einer Speichervorrichtung. Expired - Fee Related DE69023372T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/322,588 US4993029A (en) 1989-03-13 1989-03-13 Method and apparatus for randomizing data in a direct access storage device

Publications (2)

Publication Number Publication Date
DE69023372D1 true DE69023372D1 (de) 1995-12-14
DE69023372T2 DE69023372T2 (de) 1996-06-20

Family

ID=23255545

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69023372T Expired - Fee Related DE69023372T2 (de) 1989-03-13 1990-02-21 Zuverlässigkeitsverbesserung von nichtflüchtigen Datenspuren einer Speichervorrichtung.

Country Status (4)

Country Link
US (1) US4993029A (de)
EP (1) EP0388031B1 (de)
JP (1) JPH0646489B2 (de)
DE (1) DE69023372T2 (de)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2855019B2 (ja) * 1992-02-10 1999-02-10 富士通株式会社 外部記憶装置のデータ保証方法及び外部記憶装置
US5349611A (en) * 1992-11-13 1994-09-20 Ampex Systems Corporation Recovering synchronization in a data stream
US5424881A (en) * 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
US5530705A (en) * 1995-02-08 1996-06-25 International Business Machines Corporation Soft error recovery system and method
US5727004A (en) * 1995-03-14 1998-03-10 Adaptive Networks, Inc. Method and apparatus for data encoding and communication over noisy media
JP2897679B2 (ja) * 1995-03-28 1999-05-31 株式会社日立製作所 ディジタル信号記録装置
US5815514A (en) * 1996-02-09 1998-09-29 Overland Data, Inc. Variable rate bit inserter for digital data storage
US6543024B2 (en) 1996-02-09 2003-04-01 Overland Storage, Inc. Write format for digital data storage
US5931968A (en) * 1996-02-09 1999-08-03 Overland Data, Inc. Digital data recording channel
US6167550A (en) * 1996-02-09 2000-12-26 Overland Data, Inc. Write format for digital data storage
US5712863A (en) * 1996-02-09 1998-01-27 Overland Data Inc Randomizing encoder for digital data storage
US5889796A (en) * 1996-10-17 1999-03-30 Maxtor Corporation Method of insuring data integrity with a data randomizer
US6219814B1 (en) 1996-12-23 2001-04-17 International Business Machines Corporation Method and apparatus for selectively varying error correcting code (ECC) power in a direct access storage device (DASD)
US6044487A (en) * 1997-12-16 2000-03-28 International Business Machines Corporation Majority voting scheme for hard error sites
JP3910736B2 (ja) 1998-07-27 2007-04-25 株式会社東芝 ディスク記憶装置及び同装置におけるサーボセクタアドレスエラー検出方法
US6597526B1 (en) 1998-08-14 2003-07-22 Overland Storage, Inc. Magnetic tape drive apparatus including a variable rate encoder
US6968493B1 (en) * 1999-09-14 2005-11-22 Maxtor Corporation Randomizer systems for producing multiple-symbol randomizing sequences
US6384747B1 (en) 2000-10-23 2002-05-07 Cirrus Logic, Inc. Data encoding to provide run-length control in a data storage system
US6714144B1 (en) 2000-10-23 2004-03-30 Cirrus Logic, Inc. Data randomization in a data storage system
US7228480B1 (en) * 2001-12-11 2007-06-05 Maxtor Corporation Rate-1 coding for increasing timing information in recording data
US7158058B1 (en) 2002-12-09 2007-01-02 Marvell International Ltd. Method and apparatus for generating a seed set in a data dependent seed selector
JP4135497B2 (ja) 2002-12-26 2008-08-20 株式会社日立製作所 データ再生方法及びデータ再生装置
US7284184B2 (en) * 2003-01-30 2007-10-16 International Business Machines Corporation Forward error correction scheme compatible with the bit error spreading of a scrambler
US7810012B1 (en) * 2003-08-06 2010-10-05 Oracle America, Inc. Format for randomized data block in a storage device
JP4571523B2 (ja) * 2005-03-04 2010-10-27 ルネサスエレクトロニクス株式会社 スクランブル回路、エンコード装置、エンコード方法及び記録装置
US7478220B2 (en) * 2005-06-23 2009-01-13 International Business Machines Corporation Method, apparatus, and product for prohibiting unauthorized access of data stored on storage drives
US7440224B2 (en) * 2006-01-23 2008-10-21 Toshiba Corporation Disk drive servo
US7721049B2 (en) * 2006-03-27 2010-05-18 Kabuhsiki Kaisha Toshiba Disk drive write method
CN103258572B (zh) 2006-05-12 2016-12-07 苹果公司 存储设备中的失真估计和消除
WO2007132452A2 (en) 2006-05-12 2007-11-22 Anobit Technologies Reducing programming error in memory devices
WO2007132456A2 (en) 2006-05-12 2007-11-22 Anobit Technologies Ltd. Memory device with adaptive capacity
US8156403B2 (en) 2006-05-12 2012-04-10 Anobit Technologies Ltd. Combined distortion estimation and error correction coding for memory devices
US20070279788A1 (en) * 2006-05-31 2007-12-06 Toshiba America Information Systems, Inc. Method and apparatus to perform defect scanning
US7436616B2 (en) * 2006-05-31 2008-10-14 Toshiba Corporation Current pulsing for unloading
US20070279790A1 (en) * 2006-05-31 2007-12-06 Tanner Brian K Adjustable output voltage regulator for disk drive
US7457066B2 (en) * 2006-05-31 2008-11-25 Kabushiki Kiasha Toshiba Method and apparatus for phase-shift null-burst-pattern
US7468859B2 (en) * 2006-05-31 2008-12-23 Kabushiki Kaisha Toshiba Voice coil motor effective resistance determination
US7453660B2 (en) * 2006-05-31 2008-11-18 Kabushiki Kaisha Toshiba Shock feed forward adaptive filters
US20070279781A1 (en) * 2006-05-31 2007-12-06 Toshiba America Information Systems, Inc. Channel training method and apparatus
US8060806B2 (en) * 2006-08-27 2011-11-15 Anobit Technologies Ltd. Estimation of non-linear distortion in memory devices
US7734861B2 (en) * 2006-09-08 2010-06-08 Sandisk Corporation Pseudo random and command driven bit compensation for the cycling effects in flash memory
US7606966B2 (en) * 2006-09-08 2009-10-20 Sandisk Corporation Methods in a pseudo random and command driven bit compensation for the cycling effects in flash memory
US7885112B2 (en) * 2007-09-07 2011-02-08 Sandisk Corporation Nonvolatile memory and method for on-chip pseudo-randomization of data within a page and between pages
US7975192B2 (en) * 2006-10-30 2011-07-05 Anobit Technologies Ltd. Reading memory cells using multiple thresholds
US7821826B2 (en) * 2006-10-30 2010-10-26 Anobit Technologies, Ltd. Memory cell readout using successive approximation
US7924648B2 (en) * 2006-11-28 2011-04-12 Anobit Technologies Ltd. Memory power and performance management
US8151163B2 (en) 2006-12-03 2012-04-03 Anobit Technologies Ltd. Automatic defect management in memory devices
US7706182B2 (en) * 2006-12-03 2010-04-27 Anobit Technologies Ltd. Adaptive programming of analog memory cells using statistical characteristics
US7900102B2 (en) 2006-12-17 2011-03-01 Anobit Technologies Ltd. High-speed programming of memory devices
US8370561B2 (en) * 2006-12-24 2013-02-05 Sandisk Il Ltd. Randomizing for suppressing errors in a flash memory
US8127200B2 (en) * 2006-12-24 2012-02-28 Sandisk Il Ltd. Flash memory device and system with randomizing for suppressing errors
US8151166B2 (en) 2007-01-24 2012-04-03 Anobit Technologies Ltd. Reduction of back pattern dependency effects in memory devices
US7751240B2 (en) * 2007-01-24 2010-07-06 Anobit Technologies Ltd. Memory device with negative thresholds
US8369141B2 (en) * 2007-03-12 2013-02-05 Apple Inc. Adaptive estimation of memory cell read thresholds
US8001320B2 (en) 2007-04-22 2011-08-16 Anobit Technologies Ltd. Command interface for memory devices
WO2008139441A2 (en) 2007-05-12 2008-11-20 Anobit Technologies Ltd. Memory device with internal signal processing unit
US8234545B2 (en) 2007-05-12 2012-07-31 Apple Inc. Data storage with incremental redundancy
US7925936B1 (en) 2007-07-13 2011-04-12 Anobit Technologies Ltd. Memory device with non-uniform programming levels
US8259497B2 (en) * 2007-08-06 2012-09-04 Apple Inc. Programming schemes for multi-level analog memory cells
US8174905B2 (en) * 2007-09-19 2012-05-08 Anobit Technologies Ltd. Programming orders for reducing distortion in arrays of multi-level analog memory cells
US7773413B2 (en) * 2007-10-08 2010-08-10 Anobit Technologies Ltd. Reliable data storage in analog memory cells in the presence of temperature variations
US8068360B2 (en) 2007-10-19 2011-11-29 Anobit Technologies Ltd. Reading analog memory cells using built-in multi-threshold commands
US8000141B1 (en) 2007-10-19 2011-08-16 Anobit Technologies Ltd. Compensation for voltage drifts in analog memory cells
US8527819B2 (en) * 2007-10-19 2013-09-03 Apple Inc. Data storage in analog memory cell arrays having erase failures
US8270246B2 (en) * 2007-11-13 2012-09-18 Apple Inc. Optimized selection of memory chips in multi-chips memory devices
US8225181B2 (en) * 2007-11-30 2012-07-17 Apple Inc. Efficient re-read operations from memory devices
US8131920B2 (en) * 2007-12-06 2012-03-06 Hitachi Global Storage Technologies, Netherlands B.V. Method and system for dynamically allocating read and write sequence randomizer
US8209588B2 (en) 2007-12-12 2012-06-26 Anobit Technologies Ltd. Efficient interference cancellation in analog memory cell arrays
US8456905B2 (en) * 2007-12-16 2013-06-04 Apple Inc. Efficient data storage in multi-plane memory devices
US8085586B2 (en) * 2007-12-27 2011-12-27 Anobit Technologies Ltd. Wear level estimation in analog memory cells
US8156398B2 (en) 2008-02-05 2012-04-10 Anobit Technologies Ltd. Parameter estimation based on error correction code parity check equations
US7924587B2 (en) 2008-02-21 2011-04-12 Anobit Technologies Ltd. Programming of analog memory cells using a single programming pulse per state transition
US7864573B2 (en) * 2008-02-24 2011-01-04 Anobit Technologies Ltd. Programming analog memory cells for reduced variance after retention
US8230300B2 (en) 2008-03-07 2012-07-24 Apple Inc. Efficient readout from analog memory cells using data compression
US8059457B2 (en) 2008-03-18 2011-11-15 Anobit Technologies Ltd. Memory device with multiple-accuracy read commands
US8400858B2 (en) 2008-03-18 2013-03-19 Apple Inc. Memory device with reduced sense time readout
US7995388B1 (en) 2008-08-05 2011-08-09 Anobit Technologies Ltd. Data storage using modified voltages
US7924613B1 (en) * 2008-08-05 2011-04-12 Anobit Technologies Ltd. Data storage in analog memory cells with protection against programming interruption
US8949684B1 (en) 2008-09-02 2015-02-03 Apple Inc. Segmented data storage
US8169825B1 (en) 2008-09-02 2012-05-01 Anobit Technologies Ltd. Reliable data storage in analog memory cells subjected to long retention periods
US8910009B1 (en) * 2008-09-08 2014-12-09 Marvell International Ltd. Method and apparatus for enhancing error detection in data transmission
US8482978B1 (en) 2008-09-14 2013-07-09 Apple Inc. Estimation of memory cell read thresholds by sampling inside programming level distribution intervals
US8000135B1 (en) 2008-09-14 2011-08-16 Anobit Technologies Ltd. Estimation of memory cell read thresholds by sampling inside programming level distribution intervals
KR101554159B1 (ko) * 2008-10-08 2015-09-21 삼성전자주식회사 데이터 저장 장치 및 이를 포함하는 데이터 저장 시스템
US8239734B1 (en) 2008-10-15 2012-08-07 Apple Inc. Efficient data storage in storage device arrays
US8713330B1 (en) 2008-10-30 2014-04-29 Apple Inc. Data scrambling in memory devices
US8208304B2 (en) * 2008-11-16 2012-06-26 Anobit Technologies Ltd. Storage at M bits/cell density in N bits/cell analog memory cell devices, M>N
US8174857B1 (en) 2008-12-31 2012-05-08 Anobit Technologies Ltd. Efficient readout schemes for analog memory cell devices using multiple read threshold sets
US8248831B2 (en) * 2008-12-31 2012-08-21 Apple Inc. Rejuvenation of analog memory cells
US8924661B1 (en) 2009-01-18 2014-12-30 Apple Inc. Memory system including a controller and processors associated with memory devices
KR101519626B1 (ko) * 2009-02-27 2015-05-14 삼성전자주식회사 반도체 메모리 장치 및 그것의 데이터 처리 방법
US8228701B2 (en) 2009-03-01 2012-07-24 Apple Inc. Selective activation of programming schemes in analog memory cell arrays
US8832354B2 (en) * 2009-03-25 2014-09-09 Apple Inc. Use of host system resources by memory controller
US8259506B1 (en) 2009-03-25 2012-09-04 Apple Inc. Database of memory read thresholds
US8238157B1 (en) 2009-04-12 2012-08-07 Apple Inc. Selective re-programming of analog memory cells
US8479080B1 (en) 2009-07-12 2013-07-02 Apple Inc. Adaptive over-provisioning in memory systems
US8495465B1 (en) 2009-10-15 2013-07-23 Apple Inc. Error correction coding over multiple memory pages
US8677054B1 (en) 2009-12-16 2014-03-18 Apple Inc. Memory management schemes for non-volatile memory devices
US8694814B1 (en) 2010-01-10 2014-04-08 Apple Inc. Reuse of host hibernation storage space by memory controller
US8677203B1 (en) 2010-01-11 2014-03-18 Apple Inc. Redundant data storage schemes for multi-die memory systems
US8694853B1 (en) 2010-05-04 2014-04-08 Apple Inc. Read commands for reading interfering memory cells
KR101678407B1 (ko) * 2010-05-10 2016-11-23 삼성전자주식회사 데이터 저장 장치 및 그것의 프로그램 방법
US8572423B1 (en) 2010-06-22 2013-10-29 Apple Inc. Reducing peak current in memory systems
US8595591B1 (en) 2010-07-11 2013-11-26 Apple Inc. Interference-aware assignment of programming levels in analog memory cells
US9104580B1 (en) 2010-07-27 2015-08-11 Apple Inc. Cache memory for hybrid disk drives
US8645794B1 (en) 2010-07-31 2014-02-04 Apple Inc. Data storage in analog memory cells using a non-integer number of bits per cell
US8856475B1 (en) 2010-08-01 2014-10-07 Apple Inc. Efficient selection of memory blocks for compaction
US8493781B1 (en) 2010-08-12 2013-07-23 Apple Inc. Interference mitigation using individual word line erasure operations
US8694854B1 (en) 2010-08-17 2014-04-08 Apple Inc. Read threshold setting based on soft readout statistics
US9021181B1 (en) 2010-09-27 2015-04-28 Apple Inc. Memory management for unifying memory cell conditions by using maximum time intervals
US8843693B2 (en) 2011-05-17 2014-09-23 SanDisk Technologies, Inc. Non-volatile memory and method with improved data scrambling
US11611359B2 (en) * 2015-05-29 2023-03-21 SK Hynix Inc. Data storage device
KR102285940B1 (ko) * 2015-05-29 2021-08-05 에스케이하이닉스 주식회사 데이터 처리 회로, 데이터 처리 회로를 포함하는 데이터 저장 장치 및 그것의 동작 방법
US10396827B2 (en) 2015-09-25 2019-08-27 SK Hynix Inc. Data storage device
US11515897B2 (en) 2015-05-29 2022-11-29 SK Hynix Inc. Data storage device
US11177835B2 (en) 2015-09-25 2021-11-16 SK Hynix Inc. Data storage device
US11556416B2 (en) 2021-05-05 2023-01-17 Apple Inc. Controlling memory readout reliability and throughput by adjusting distance between read thresholds
US11847342B2 (en) 2021-07-28 2023-12-19 Apple Inc. Efficient transfer of hard data and confidence levels in reading a nonvolatile memory

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775746A (en) * 1972-05-19 1973-11-27 Ibm Method and apparatus for detecting odd numbers of errors and burst errors of less than a predetermined length in scrambled digital sequences
GB1500132A (en) * 1974-03-07 1978-02-08 Standard Telephones Cables Ltd Multi-level data scramblers and descramblers
JPS5380105A (en) * 1976-12-24 1978-07-15 Sony Corp Digital signal transmission method
US4234898A (en) * 1978-03-15 1980-11-18 Nippon Hoso Kyokai Digital magnetic recording and reproducing apparatus
JPS5654140A (en) * 1979-10-09 1981-05-14 Sony Corp Transmission method for pcm signal
JPS58188315A (ja) * 1982-04-28 1983-11-02 Sony Corp デイスク再生装置
JPS6018865A (ja) * 1983-07-11 1985-01-30 Hitachi Ltd 記録方式
JPH0640420B2 (ja) * 1985-02-27 1994-05-25 株式会社日立製作所 Ｐｃｍ再生装置
US4914527A (en) * 1986-04-09 1990-04-03 Sony Corporation Recording and reproducing digital video and audio signals together with a time code signal which is within user control words of the audio data
JPS63274222A (ja) * 1987-05-01 1988-11-11 Matsushita Electric Ind Co Ltd インタ−リ−ブ方法
DE3719498A1 (de) * 1987-06-11 1988-12-29 Bosch Gmbh Robert System zur pruefung und/oder ueberwachung eines digitalen videobandgeraetes

Also Published As

Publication number Publication date
EP0388031A3 (de) 1992-01-15
EP0388031B1 (de) 1995-11-08
JPH0646489B2 (ja) 1994-06-15
EP0388031A2 (de) 1990-09-19
JPH02278573A (ja) 1990-11-14
DE69023372T2 (de) 1996-06-20
US4993029A (en) 1991-02-12

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee