JPS54145443A - Data memory circuit - Google Patents

Data memory circuit

Info

Publication number
JPS54145443A
JPS54145443A JP5388678A JP5388678A JPS54145443A JP S54145443 A JPS54145443 A JP S54145443A JP 5388678 A JP5388678 A JP 5388678A JP 5388678 A JP5388678 A JP 5388678A JP S54145443 A JPS54145443 A JP S54145443A
Authority
JP
Japan
Prior art keywords
circuit
memories
data
dissidence
outputs
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.)
Pending
Application number
JP5388678A
Other languages
Japanese (ja)
Inventor
Masaaki Miyazaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5388678A priority Critical patent/JPS54145443A/en
Publication of JPS54145443A publication Critical patent/JPS54145443A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/183—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components
    • 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
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/187—Voting techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To maintain the same correct data extending over a long period of time, by rewriting the output of a majority-decision into the odd-numbered memories synchronizing with the dissidence signal of a dissidence detection circuit which receives the outputs of the memories. CONSTITUTION:When the odd-numbered rewritable memories 1-1 to 1-n maintain correct data in them while the same data are stored. Majority-decision circuit 2 outputs correct data and dissidence detection circuit 3 outputs no dissidence signal. Therefore, memory write circuit 4 never writes data into memories. When the data of half the memories and below in the memory group are supposed to be inverted due to an inefficient write, a dissidence signal is outputted from circuit 3. Circuit 2, on the other hand, generates the correct-data output continuously. Circuit 4, therefore, rewrites the correct data into the memory group synchronizing with the signal of circuit 3, so that outputs of memories 1-1 to 1-n will all be correct data.
JP5388678A 1978-05-06 1978-05-06 Data memory circuit Pending JPS54145443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5388678A JPS54145443A (en) 1978-05-06 1978-05-06 Data memory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5388678A JPS54145443A (en) 1978-05-06 1978-05-06 Data memory circuit

Publications (1)

Publication Number Publication Date
JPS54145443A true JPS54145443A (en) 1979-11-13

Family

ID=12955208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5388678A Pending JPS54145443A (en) 1978-05-06 1978-05-06 Data memory circuit

Country Status (1)

Country Link
JP (1) JPS54145443A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196567A (en) * 1987-10-08 1989-04-14 Matsushita Electric Ind Co Ltd Frequency deciding device
JPH01124774A (en) * 1987-11-10 1989-05-17 Matsushita Electric Ind Co Ltd Frequency deciding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196567A (en) * 1987-10-08 1989-04-14 Matsushita Electric Ind Co Ltd Frequency deciding device
JPH01124774A (en) * 1987-11-10 1989-05-17 Matsushita Electric Ind Co Ltd Frequency deciding device

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