FR2379880A1 - Systeme de correction d'erreurs pour une memoire a acces selectif - Google Patents

Systeme de correction d'erreurs pour une memoire a acces selectif

Info

Publication number
FR2379880A1
FR2379880A1 FR7703447A FR7703447A FR2379880A1 FR 2379880 A1 FR2379880 A1 FR 2379880A1 FR 7703447 A FR7703447 A FR 7703447A FR 7703447 A FR7703447 A FR 7703447A FR 2379880 A1 FR2379880 A1 FR 2379880A1
Authority
FR
France
Prior art keywords
shunt switch
radiation pulse
protection system
data loss
data word
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
Application number
FR7703447A
Other languages
English (en)
Other versions
FR2379880B1 (fr
Inventor
Alan I Groudan
George F Schroeder
H Lee Treffinger
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.)
Singer Co
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Priority to FR7703447A priority Critical patent/FR2379880A1/fr
Priority to DE19772706905 priority patent/DE2706905A1/de
Publication of FR2379880A1 publication Critical patent/FR2379880A1/fr
Application granted granted Critical
Publication of FR2379880B1 publication Critical patent/FR2379880B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/74—Masking faults in memories by using spares or by reconfiguring using duplex memories, i.e. using dual copies
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F11/1012—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 codes or arrangements adapted for a specific type of error
    • G06F11/1032—Simple parity
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1405—Saving, restoring, recovering or retrying at machine instruction level
    • G06F11/1407—Checkpointing the instruction stream

Abstract

a. Système de correction d'erreurs pour une mémoire à accès sélectif. b. Il comprend des circuits de contournement couplés aux circuits de sélection et de lecture et d'écriture afin de protéger tous les éléments de mémoire non-adressés dans le cas d'une impulsion de radiations; des moyens d'accès couplés à la mémoire pour accéder sélectivement aux mots d'information contenus dans différents emplacements de celle-ci; et, des circuits de correction et de recouvrement logique couplés auxdits moyens d'accès pour reconstituer le mot d information auquel il était accédé durant l'impulsion de radiations, afin de remplacer ce mot dans la mémoire par un mot identique reconstitué. c. Pour immuniser contre d'éventuelles radiations nucléaires ou analogues, les mémoires à accès direct des ordinateurs.
FR7703447A 1977-02-08 1977-02-08 Systeme de correction d'erreurs pour une memoire a acces selectif Granted FR2379880A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7703447A FR2379880A1 (fr) 1977-02-08 1977-02-08 Systeme de correction d'erreurs pour une memoire a acces selectif
DE19772706905 DE2706905A1 (de) 1977-02-08 1977-02-17 Speicherschutzsystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7703447A FR2379880A1 (fr) 1977-02-08 1977-02-08 Systeme de correction d'erreurs pour une memoire a acces selectif
DE19772706905 DE2706905A1 (de) 1977-02-08 1977-02-17 Speicherschutzsystem

Publications (2)

Publication Number Publication Date
FR2379880A1 true FR2379880A1 (fr) 1978-09-01
FR2379880B1 FR2379880B1 (fr) 1982-04-02

Family

ID=44246244

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703447A Granted FR2379880A1 (fr) 1977-02-08 1977-02-08 Systeme de correction d'erreurs pour une memoire a acces selectif

Country Status (2)

Country Link
DE (1) DE2706905A1 (fr)
FR (1) FR2379880A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037705A1 (fr) * 1980-04-01 1981-10-14 Honeywell Inc. Système de mémoire à correction d'erreurs
FR2640409A1 (fr) * 1988-12-08 1990-06-15 Dassault Electronique Procede de stockage de donnees dans une memoire electronique, module interface pour memoire electronique et dispositif de memoire correspondants
FR2766593A1 (fr) * 1997-07-25 1999-01-29 Aerospatiale Procede et dispositif pour proteger des donnees d'un systeme electronique contre une agression ionisante

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022438B2 (ja) * 1980-05-06 1985-06-01 松下電器産業株式会社 不揮発性メモリのリフレッシュ方式

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409839A (en) * 1965-08-04 1968-11-05 North American Rockwell Method and apparatus for minimizing the effects of ionizing radiation on semiconductor circuits
US3876978A (en) * 1973-06-04 1975-04-08 Ibm Archival data protection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037705A1 (fr) * 1980-04-01 1981-10-14 Honeywell Inc. Système de mémoire à correction d'erreurs
FR2640409A1 (fr) * 1988-12-08 1990-06-15 Dassault Electronique Procede de stockage de donnees dans une memoire electronique, module interface pour memoire electronique et dispositif de memoire correspondants
FR2766593A1 (fr) * 1997-07-25 1999-01-29 Aerospatiale Procede et dispositif pour proteger des donnees d'un systeme electronique contre une agression ionisante

Also Published As

Publication number Publication date
FR2379880B1 (fr) 1982-04-02
DE2706905A1 (de) 1978-08-24
DE2706905C2 (fr) 1988-07-28

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Legal Events

Date Code Title Description
ST Notification of lapse