GB1420794A - Error-correcting memory with partial write - Google Patents

Error-correcting memory with partial write

Info

Publication number
GB1420794A
GB1420794A GB5297173A GB5297173A GB1420794A GB 1420794 A GB1420794 A GB 1420794A GB 5297173 A GB5297173 A GB 5297173A GB 5297173 A GB5297173 A GB 5297173A GB 1420794 A GB1420794 A GB 1420794A
Authority
GB
United Kingdom
Prior art keywords
error
bytes
bits
check
stored
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
Application number
GB5297173A
Other languages
English (en)
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.)
Bull HN Information Systems Italia SpA
Bull HN Information Systems Inc
Original Assignee
Honeywell Information Systems Italia SpA
Honeywell Information Systems Inc
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 Honeywell Information Systems Italia SpA, Honeywell Information Systems Inc filed Critical Honeywell Information Systems Italia SpA
Publication of GB1420794A publication Critical patent/GB1420794A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1048—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using arrangements adapted for a specific error detection or correction feature
    • G06F11/1056—Updating check bits on partial write, i.e. read/modify/write

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Detection And Correction Of Errors (AREA)
GB5297173A 1972-11-15 1973-11-15 Error-correcting memory with partial write Expired GB1420794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00306779A US3814921A (en) 1972-11-15 1972-11-15 Apparatus and method for a memory partial-write of error correcting encoded data

Publications (1)

Publication Number Publication Date
GB1420794A true GB1420794A (en) 1976-01-14

Family

ID=23186802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5297173A Expired GB1420794A (en) 1972-11-15 1973-11-15 Error-correcting memory with partial write

Country Status (7)

Country Link
US (1) US3814921A (https=)
JP (1) JPS5632719B2 (https=)
AU (1) AU476372B2 (https=)
CA (1) CA996277A (https=)
DE (1) DE2357116A1 (https=)
FR (1) FR2209468A5 (https=)
GB (1) GB1420794A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136614A (en) * 1980-06-25 1984-09-19 Sundstrand Data Control Recording digital date

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2257213A5 (https=) * 1973-12-04 1975-08-01 Cii
JPS5729797B2 (https=) * 1975-01-16 1982-06-24
US4005405A (en) * 1975-05-07 1977-01-25 Data General Corporation Error detection and correction in data processing systems
GB1573329A (en) * 1976-09-29 1980-08-20 Honeywell Inf Systems Method and apparatu for detecting errors in parity encoded data
US4072853A (en) * 1976-09-29 1978-02-07 Honeywell Information Systems Inc. Apparatus and method for storing parity encoded data from a plurality of input/output sources
US4077565A (en) * 1976-09-29 1978-03-07 Honeywell Information Systems Inc. Error detection and correction locator circuits
US4117458A (en) * 1977-03-04 1978-09-26 Grumman Aerospace Corporation High speed double error correction plus triple error detection system
US4171765A (en) * 1977-08-29 1979-10-23 Data General Corporation Error detection system
US4295219A (en) * 1980-03-31 1981-10-13 Bell Telephone Laboratories, Incorporated Memory write error detection circuit
US4433388A (en) * 1980-10-06 1984-02-21 Ncr Corporation Longitudinal parity
IT1202527B (it) * 1987-02-12 1989-02-09 Honeywell Inf Systems Sistema di memoria e relativo apparato di rivelazione-correzione di errore
US4817095A (en) * 1987-05-15 1989-03-28 Digital Equipment Corporation Byte write error code method and apparatus
JPH0821238B2 (ja) * 1987-11-12 1996-03-04 三菱電機株式会社 半導体記憶装置
US4884271A (en) * 1987-12-28 1989-11-28 International Business Machines Corporation Error checking and correcting for read-modified-write operations
US4918695A (en) * 1988-08-30 1990-04-17 Unisys Corporation Failure detection for partial write operations for memories
US5420983A (en) * 1992-08-12 1995-05-30 Digital Equipment Corporation Method for merging memory blocks, fetching associated disk chunk, merging memory blocks with the disk chunk, and writing the merged data
US6047396A (en) * 1992-10-14 2000-04-04 Tm Patents, L.P. Digital data storage system including phantom bit storage locations
US5675579A (en) * 1992-12-17 1997-10-07 Tandem Computers Incorporated Method for verifying responses to messages using a barrier message
US6701480B1 (en) * 2000-03-08 2004-03-02 Rockwell Automation Technologies, Inc. System and method for providing error check and correction in memory systems
FR2831970A1 (fr) * 2001-11-02 2003-05-09 Iroc Technologies Procede de memorisation de donnees avec correction d'erreur
FR2831971A1 (fr) * 2001-11-02 2003-05-09 Iroc Technologies Procede de memorisation de donnees avec correction d'erreur
US7051264B2 (en) * 2001-11-14 2006-05-23 Monolithic System Technology, Inc. Error correcting memory and method of operating same
US7392456B2 (en) 2004-11-23 2008-06-24 Mosys, Inc. Predictive error correction code generation facilitating high-speed byte-write in a semiconductor memory
WO2006057794A2 (en) * 2004-11-23 2006-06-01 Monolithic System Technology, Inc. Transparent error correcting memory that supports partial-word write
EP2169555A4 (en) * 2007-06-20 2011-01-05 Fujitsu Ltd CACHE CONTROL, CACHE CONTROL PROCEDURE AND CACHE CONTROL PROGRAM
JP4878606B2 (ja) * 2008-04-01 2012-02-15 エナジーサポート株式会社 消弧装置
US7814300B2 (en) * 2008-04-30 2010-10-12 Freescale Semiconductor, Inc. Configurable pipeline to process an operation at alternate pipeline stages depending on ECC/parity protection mode of memory access
US9251882B2 (en) 2011-09-16 2016-02-02 Avalanche Technology, Inc. Magnetic random access memory with dynamic random access memory (DRAM)-like interface
US8751905B2 (en) 2011-09-16 2014-06-10 Avalanche Technology, Inc. Memory with on-chip error correction
US9658780B2 (en) 2011-09-16 2017-05-23 Avalanche Technology, Inc. Magnetic random access memory with dynamic random access memory (DRAM)-like interface
US20140344643A1 (en) * 2013-05-14 2014-11-20 John H. Hughes, Jr. Hybrid memory protection method and apparatus
US9559726B2 (en) * 2015-06-15 2017-01-31 Intel Corporation Use of error correcting code to carry additional data bits
US9766975B2 (en) 2015-09-01 2017-09-19 International Business Machines Corporation Partial ECC handling for a byte-write capable register
US10176038B2 (en) * 2015-09-01 2019-01-08 International Business Machines Corporation Partial ECC mechanism for a byte-write capable register
US9985655B2 (en) 2015-09-01 2018-05-29 International Business Machines Corporation Generating ECC values for byte-write capable registers
KR102638790B1 (ko) * 2016-09-13 2024-02-21 에스케이하이닉스 주식회사 반도체장치 및 반도체시스템

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573728A (en) * 1969-01-09 1971-04-06 Ibm Memory with error correction for partial store operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136614A (en) * 1980-06-25 1984-09-19 Sundstrand Data Control Recording digital date

Also Published As

Publication number Publication date
AU476372B2 (en) 1976-09-16
US3814921A (en) 1974-06-04
DE2357116A1 (de) 1974-05-22
CA996277A (en) 1976-08-31
JPS4979737A (https=) 1974-08-01
JPS5632719B2 (https=) 1981-07-29
AU5949273A (en) 1975-02-27
FR2209468A5 (https=) 1974-06-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee