CA2019581A1 - Compteur a memoire remanente - Google Patents

Compteur a memoire remanente

Info

Publication number
CA2019581A1
CA2019581A1 CA2019581A CA2019581A CA2019581A1 CA 2019581 A1 CA2019581 A1 CA 2019581A1 CA 2019581 A CA2019581 A CA 2019581A CA 2019581 A CA2019581 A CA 2019581A CA 2019581 A1 CA2019581 A1 CA 2019581A1
Authority
CA
Canada
Prior art keywords
word
memory cells
fault
data word
word string
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
CA2019581A
Other languages
English (en)
Other versions
CA2019581C (fr
Inventor
Daniel Harrison Bennett
Gary Lawrence Dodd
Kenelm Gerald Digby Murray
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.)
Raytheon Systems Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2019581A1 publication Critical patent/CA2019581A1/fr
Application granted granted Critical
Publication of CA2019581C publication Critical patent/CA2019581C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/40—Monitoring; Error detection; Preventing or correcting improper counter operation
    • H03K21/403—Arrangements for storing the counting state in case of power supply interruption

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Hardware Redundancy (AREA)
  • Read Only Memory (AREA)
CA002019581A 1989-07-13 1990-06-21 Compteur a memoire remanente Expired - Lifetime CA2019581C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898916017A GB8916017D0 (en) 1989-07-13 1989-07-13 A non-volatile counter
GB8916017.0 1989-07-13

Publications (2)

Publication Number Publication Date
CA2019581A1 true CA2019581A1 (fr) 1991-01-13
CA2019581C CA2019581C (fr) 2000-05-16

Family

ID=10659969

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019581A Expired - Lifetime CA2019581C (fr) 1989-07-13 1990-06-21 Compteur a memoire remanente

Country Status (7)

Country Link
US (1) US5105449A (fr)
EP (1) EP0408234B1 (fr)
JP (1) JPH03116600A (fr)
CA (1) CA2019581C (fr)
DE (1) DE69025996T2 (fr)
ES (1) ES2084661T3 (fr)
GB (1) GB8916017D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9595343B1 (en) 2016-06-05 2017-03-14 Apple Inc. Early prediction of failure in programming a nonvolatile memory

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386533A (en) * 1990-11-21 1995-01-31 Texas Instruments Incorporated Method and apparatus for maintaining variable data in a non-volatile electronic memory device
BR9914136A (pt) * 1998-09-30 2001-06-19 Infineon Technologies Ag Disposição de circuito e processo para autenticação do conteúdo de uma área de memória
US10318416B2 (en) 2017-05-18 2019-06-11 Nxp B.V. Method and system for implementing a non-volatile counter using non-volatile memory

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331058A (en) * 1964-12-24 1967-07-11 Fairchild Camera Instr Co Error free memory
US4483001A (en) * 1982-06-16 1984-11-13 International Business Machines Corporation Online realignment of memory faults
JPH0670880B2 (ja) * 1983-01-21 1994-09-07 株式会社日立マイコンシステム 半導体記憶装置
US4566102A (en) * 1983-04-18 1986-01-21 International Business Machines Corporation Parallel-shift error reconfiguration
JPS6049218A (ja) * 1983-08-30 1985-03-18 Nippon Denso Co Ltd 車両用走行距離計
GB2171543B (en) * 1985-02-27 1988-04-20 Hughes Microelectronics Ltd Counting circuit which provides for extended counter life
DE3532768A1 (de) * 1985-09-13 1987-03-19 Bosch Gmbh Robert Schaltungsanordnung zur addition, speicherung und wiedergabe elektrischer zaehlimpulse
GB8616852D0 (en) * 1986-07-10 1986-08-20 Hughes Microelectronics Ltd Electronic counter
US4774712A (en) * 1986-10-01 1988-09-27 International Business Machines Corporation Redundant storage device having address determined by parity of lower address bits
US4757522A (en) * 1986-10-01 1988-07-12 Vdo Adolf Schindling Ag Counting circuit employing more equatably used plural counters for extended life
US4947410A (en) * 1989-02-23 1990-08-07 General Motors Corporation Method and apparatus for counting with a nonvolatile memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9595343B1 (en) 2016-06-05 2017-03-14 Apple Inc. Early prediction of failure in programming a nonvolatile memory

Also Published As

Publication number Publication date
GB8916017D0 (en) 1989-08-31
EP0408234A2 (fr) 1991-01-16
EP0408234B1 (fr) 1996-03-20
ES2084661T3 (es) 1996-05-16
JPH03116600A (ja) 1991-05-17
CA2019581C (fr) 2000-05-16
DE69025996D1 (de) 1996-04-25
EP0408234A3 (en) 1991-10-30
DE69025996T2 (de) 1996-10-02
US5105449A (en) 1992-04-14

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry