SG97859A1 - Method and apparatus for updating cyclic redundancy check information for data storage - Google Patents
Method and apparatus for updating cyclic redundancy check information for data storageInfo
- Publication number
- SG97859A1 SG97859A1 SG200001193A SG200001193A SG97859A1 SG 97859 A1 SG97859 A1 SG 97859A1 SG 200001193 A SG200001193 A SG 200001193A SG 200001193 A SG200001193 A SG 200001193A SG 97859 A1 SG97859 A1 SG 97859A1
- Authority
- SG
- Singapore
- Prior art keywords
- data storage
- cyclic redundancy
- redundancy check
- check information
- updating
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/09—Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
- H03M13/093—CRC update after modification of the information word
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
- H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
- H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
- H03M13/1515—Reed-Solomon codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2903—Methods and arrangements specifically for encoding, e.g. parallel encoding of a plurality of constituent codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2906—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
- H03M13/2927—Decoding strategies
Landscapes
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Error Detection And Correction (AREA)
- Detection And Correction Of Errors (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/269,000 US6446234B1 (en) | 1999-03-16 | 1999-03-16 | Method and apparatus for updating cyclic redundancy check information for data storage |
Publications (1)
Publication Number | Publication Date |
---|---|
SG97859A1 true SG97859A1 (en) | 2003-08-20 |
Family
ID=23025417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200001193A SG97859A1 (en) | 1999-03-16 | 2000-03-04 | Method and apparatus for updating cyclic redundancy check information for data storage |
Country Status (3)
Country | Link |
---|---|
US (1) | US6446234B1 (ko) |
KR (1) | KR100327653B1 (ko) |
SG (1) | SG97859A1 (ko) |
Families Citing this family (49)
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US7020835B2 (en) * | 2000-10-19 | 2006-03-28 | Oracle International Corporation | Enhancements to data integrity verification mechanism |
US6928607B2 (en) * | 2000-10-19 | 2005-08-09 | Oracle International Corporation | Data integrity verification mechanism |
US7404131B2 (en) * | 2001-01-22 | 2008-07-22 | Maxtor Corporation | High efficiency, error minimizing coding strategy method and apparatus |
US20030217320A1 (en) * | 2002-05-20 | 2003-11-20 | Gorshe Steven Scott | Cyclic redundancy check circuit for use with self-synchronous scramblers |
KR100657260B1 (ko) | 2002-12-02 | 2006-12-14 | 삼성전자주식회사 | 방송 테이블 변경 판단 방법 |
US7243289B1 (en) | 2003-01-25 | 2007-07-10 | Novell, Inc. | Method and system for efficiently computing cyclic redundancy checks |
US7484096B1 (en) * | 2003-05-28 | 2009-01-27 | Microsoft Corporation | Data validation using signatures and sampling |
US7457791B1 (en) | 2003-05-30 | 2008-11-25 | Microsoft Corporation | Using invariants to validate applications states |
US7149946B2 (en) | 2003-06-13 | 2006-12-12 | Microsoft Corporation | Systems and methods for enhanced stored data verification utilizing pageable pool memory |
US7010469B2 (en) * | 2003-09-30 | 2006-03-07 | International Business Machines Corporation | Method of computing partial CRCs |
US7426676B2 (en) * | 2004-01-14 | 2008-09-16 | Broadcom Corporation | Data retrieval from a storage device using a combined error correction and detection approach |
KR100662918B1 (ko) * | 2004-09-20 | 2007-01-02 | 삼성전자주식회사 | 오픈케이블 및 상기 오픈케이블에서 서비스 정보 갱신 방법 |
US7444582B1 (en) * | 2004-10-27 | 2008-10-28 | Marvell International Ltd. | Architecture and control of reed-solomon error-correction decoding |
US8826093B2 (en) * | 2005-01-19 | 2014-09-02 | Qualcomm Incorporated | Power saving method for coded transmission |
US7627614B2 (en) * | 2005-03-03 | 2009-12-01 | Oracle International Corporation | Lost write detection and repair |
WO2007091779A1 (en) | 2006-02-10 | 2007-08-16 | Lg Electronics Inc. | Digital broadcasting receiver and method of processing data |
US7823049B2 (en) * | 2006-03-15 | 2010-10-26 | Mediatek Inc. | Methods and apparatuses for generating parity symbols for data block |
WO2007126196A1 (en) | 2006-04-29 | 2007-11-08 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
WO2007136166A1 (en) | 2006-05-23 | 2007-11-29 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
US7730344B1 (en) * | 2006-08-28 | 2010-06-01 | Marvell International Ltd. | System and method for error correction |
US7873104B2 (en) | 2006-10-12 | 2011-01-18 | Lg Electronics Inc. | Digital television transmitting system and receiving system and method of processing broadcasting data |
KR101285887B1 (ko) * | 2007-03-26 | 2013-07-11 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR101253185B1 (ko) * | 2007-03-26 | 2013-04-10 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR101285888B1 (ko) * | 2007-03-30 | 2013-07-11 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
US8433973B2 (en) * | 2007-07-04 | 2013-04-30 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
WO2009005326A2 (en) | 2007-07-04 | 2009-01-08 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
KR20090012180A (ko) | 2007-07-28 | 2009-02-02 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR20090021124A (ko) * | 2007-08-24 | 2009-02-27 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR100928261B1 (ko) * | 2007-09-08 | 2009-11-24 | 엘지전자 주식회사 | 비검출 오류 저감을 위한 신호 분할 및 crc 부착 방법 |
US8296634B2 (en) * | 2010-02-27 | 2012-10-23 | I Shou University | Error correction decoder, error correction value generator, and error correction system |
US8453032B2 (en) * | 2010-04-21 | 2013-05-28 | General Electric Company | Energy and space efficient detection for data storage |
US8381068B1 (en) * | 2010-08-27 | 2013-02-19 | Altera Corporation | Partial reconfiguration and error detection in an integrated circuit |
US8782487B2 (en) * | 2012-04-18 | 2014-07-15 | Lsi Corporation | Systems and methods for locating and correcting decoder mis-corrections |
US8782488B2 (en) * | 2012-04-20 | 2014-07-15 | Lsi Corporation | Systems and methods for back step data decoding |
US10152500B2 (en) | 2013-03-14 | 2018-12-11 | Oracle International Corporation | Read mostly instances |
US9094046B2 (en) | 2013-09-03 | 2015-07-28 | Lsi Corporation | Systems and methods for variable sector count spreading and de-spreading |
US8976471B1 (en) | 2013-09-05 | 2015-03-10 | Lsi Corporation | Systems and methods for two stage tone reduction |
US9767178B2 (en) | 2013-10-30 | 2017-09-19 | Oracle International Corporation | Multi-instance redo apply |
US9436550B2 (en) | 2013-10-31 | 2016-09-06 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for internal disk drive data compression |
CN104834476B (zh) | 2014-02-10 | 2016-10-19 | 安华高科技通用Ip(新加坡)公司 | 基于段结束标记的数据对准的系统和方法 |
US9184954B1 (en) | 2014-07-02 | 2015-11-10 | Seagate Technology Llc | Systems and methods for directed soft data perturbation in layered decoding |
US9892153B2 (en) | 2014-12-19 | 2018-02-13 | Oracle International Corporation | Detecting lost writes |
US9384761B1 (en) | 2015-04-09 | 2016-07-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for flexible variable code rate support |
US10747752B2 (en) | 2015-10-23 | 2020-08-18 | Oracle International Corporation | Space management for transactional consistency of in-memory objects on a standby database |
US11657037B2 (en) | 2015-10-23 | 2023-05-23 | Oracle International Corporation | Query execution against an in-memory standby database |
US10698771B2 (en) | 2016-09-15 | 2020-06-30 | Oracle International Corporation | Zero-data-loss with asynchronous redo shipping to a standby database |
US10891291B2 (en) | 2016-10-31 | 2021-01-12 | Oracle International Corporation | Facilitating operations on pluggable databases using separate logical timestamp services |
US11475006B2 (en) | 2016-12-02 | 2022-10-18 | Oracle International Corporation | Query and change propagation scheduling for heterogeneous database systems |
US10691722B2 (en) | 2017-05-31 | 2020-06-23 | Oracle International Corporation | Consistent query execution for big data analytics in a hybrid database |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5671237A (en) * | 1993-11-04 | 1997-09-23 | Cirrus Logic, Inc. | Cyclical redundancy check method and apparatus |
WO1998015063A1 (en) * | 1996-10-01 | 1998-04-09 | Symbios, Inc. | A method of data protection |
US5781567A (en) * | 1994-10-24 | 1998-07-14 | Sony Corporation | Digital coding method and apparatus for the correction of burst errors |
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US4782490A (en) | 1987-03-16 | 1988-11-01 | Cythera Corporation | Method and a system for multiple error detection and correction |
US4847705A (en) | 1987-07-07 | 1989-07-11 | Digital Equipment Corporation | Method and apparatus for encoding magnetic disk sector addresses |
US5157669A (en) | 1988-10-14 | 1992-10-20 | Advanced Micro Devices, Inc. | Comparison of an estimated CRC syndrome to a generated CRC syndrome in an ECC/CRC system to detect uncorrectable errors |
US5027357A (en) * | 1988-10-14 | 1991-06-25 | Advanced Micro Devices, Inc. | ECC/CRC error detection and correction system |
JPH0652630A (ja) | 1991-03-28 | 1994-02-25 | Sony Corp | データ記録方法 |
US5384786A (en) * | 1991-04-02 | 1995-01-24 | Cirrus Logic, Inc. | Fast and efficient circuit for identifying errors introduced in Reed-Solomon codewords |
JPH0575577A (ja) * | 1991-09-17 | 1993-03-26 | Fujitsu Ltd | データエラー検出装置 |
US5375127A (en) | 1992-03-25 | 1994-12-20 | Ncr Corporation | Method and apparatus for generating Reed-Soloman error correcting code across multiple word boundaries |
US5446745A (en) | 1992-10-05 | 1995-08-29 | Mitsubishi Semiconductor America, Inc. | Apparatus for correcting errors in optical disks |
US5383204A (en) | 1993-06-29 | 1995-01-17 | Mitsubishi Semiconductor America, Inc. | Parallel encoding apparatus and method implementing cyclic redundancy check and Reed-Solomon codes |
US5491701A (en) * | 1993-11-04 | 1996-02-13 | Cirrus Logic, Inc. | Burst error corrector |
JPH10107647A (ja) * | 1996-09-25 | 1998-04-24 | Mitsubishi Electric Corp | Crc回路 |
JP3286205B2 (ja) * | 1997-04-08 | 2002-05-27 | 東芝デジタルメディアエンジニアリング株式会社 | データ伝送システム、誤り訂正装置、誤り訂正方法及びdvd再生装置 |
US6048090A (en) * | 1997-04-23 | 2000-04-11 | Cirrus Logic, Inc. | Error correction and concurrent verification of a product code |
-
1999
- 1999-03-16 US US09/269,000 patent/US6446234B1/en not_active Expired - Fee Related
-
2000
- 2000-03-02 KR KR1020000010355A patent/KR100327653B1/ko not_active IP Right Cessation
- 2000-03-04 SG SG200001193A patent/SG97859A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5671237A (en) * | 1993-11-04 | 1997-09-23 | Cirrus Logic, Inc. | Cyclical redundancy check method and apparatus |
US5781567A (en) * | 1994-10-24 | 1998-07-14 | Sony Corporation | Digital coding method and apparatus for the correction of burst errors |
WO1998015063A1 (en) * | 1996-10-01 | 1998-04-09 | Symbios, Inc. | A method of data protection |
Also Published As
Publication number | Publication date |
---|---|
KR20000076757A (ko) | 2000-12-26 |
KR100327653B1 (ko) | 2002-03-08 |
US6446234B1 (en) | 2002-09-03 |
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