JPS56164450A - Self-maintenance device for machinery - Google Patents

Self-maintenance device for machinery

Info

Publication number
JPS56164450A
JPS56164450A JP6696280A JP6696280A JPS56164450A JP S56164450 A JPS56164450 A JP S56164450A JP 6696280 A JP6696280 A JP 6696280A JP 6696280 A JP6696280 A JP 6696280A JP S56164450 A JPS56164450 A JP S56164450A
Authority
JP
Japan
Prior art keywords
memory module
machinery
bit
failure
self
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
JP6696280A
Other languages
Japanese (ja)
Other versions
JPS6239783B2 (en
Inventor
Masayuki Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6696280A priority Critical patent/JPS56164450A/en
Publication of JPS56164450A publication Critical patent/JPS56164450A/en
Publication of JPS6239783B2 publication Critical patent/JPS6239783B2/ja
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

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Hardware Redundancy (AREA)
  • Debugging And Monitoring (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To prevent failure in advance, by replacing a machinery with another one automatically, when the failure of the machinery has been foreseen. CONSTITUTION:It is assumed that 19-bit of address information is present, the upper rank 2-bit is decoded and used for the selection of the memory module and the lower rank 17-bit is used for the designation of address in the module. When a memory module 30c has been accessed many times and a failure detecting signal has been consequently generated for some times, the number of production is recorded on a counter. When the count value reaches a prescribed value, carry is produced and a flip flop 22 is set. As a result, a NAND gate selecting a memory module 11c is closed, and instead another memory module 30a is selected automatically.
JP6696280A 1980-05-20 1980-05-20 Self-maintenance device for machinery Granted JPS56164450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6696280A JPS56164450A (en) 1980-05-20 1980-05-20 Self-maintenance device for machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6696280A JPS56164450A (en) 1980-05-20 1980-05-20 Self-maintenance device for machinery

Publications (2)

Publication Number Publication Date
JPS56164450A true JPS56164450A (en) 1981-12-17
JPS6239783B2 JPS6239783B2 (en) 1987-08-25

Family

ID=13331147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6696280A Granted JPS56164450A (en) 1980-05-20 1980-05-20 Self-maintenance device for machinery

Country Status (1)

Country Link
JP (1) JPS56164450A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0498342A (en) * 1990-08-09 1992-03-31 Mitsubishi Electric Corp Semiconductor memory device
JPH08153045A (en) * 1994-11-30 1996-06-11 Nec Corp Memory control circuit
JPH08153050A (en) * 1994-11-30 1996-06-11 Nec Corp Memory monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0498342A (en) * 1990-08-09 1992-03-31 Mitsubishi Electric Corp Semiconductor memory device
JPH08153045A (en) * 1994-11-30 1996-06-11 Nec Corp Memory control circuit
JPH08153050A (en) * 1994-11-30 1996-06-11 Nec Corp Memory monitoring system

Also Published As

Publication number Publication date
JPS6239783B2 (en) 1987-08-25

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