JPS563494A - Defect remedying system for bubble memory - Google Patents

Defect remedying system for bubble memory

Info

Publication number
JPS563494A
JPS563494A JP7910579A JP7910579A JPS563494A JP S563494 A JPS563494 A JP S563494A JP 7910579 A JP7910579 A JP 7910579A JP 7910579 A JP7910579 A JP 7910579A JP S563494 A JPS563494 A JP S563494A
Authority
JP
Japan
Prior art keywords
information
defective
writing
bubble memory
parallel
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
JP7910579A
Other languages
Japanese (ja)
Inventor
Shigeru Fujii
Atsuhiko Tsujimura
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP7910579A priority Critical patent/JPS563494A/en
Publication of JPS563494A publication Critical patent/JPS563494A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize the full application for the bits excepting the defective ones without using any stand-by bubble memory, by giving the prescribed process to each bit of the writing and reading information which received the serial conversion based on the defect information and then converting again the bit into the parallel information.
CONSTITUTION: The parallel writing information given from the CPU is converted into the serial information through reading and writing control circuit B. And the region corresponding to the defective minor loop of the serial information is made ineffective based on the information of the ROMA storing the defective minor loop control information. And then the dummy information is inserted into the ineffective region, and thus the subsequent bits are decided effective to be shifted by the number of defective bit X. This information is converted again into the parallel information, and the parallel driving is given to bubble memory P of the fixed number via writing inhibit circuit C to carry out the writing of the information. So is with the reading, and all minor loops excepting the defective bits can be used without using any stand-by bubble memory nor cutting off as the defective bytes.
COPYRIGHT: (C)1981,JPO&Japio
JP7910579A 1979-06-25 1979-06-25 Defect remedying system for bubble memory Pending JPS563494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7910579A JPS563494A (en) 1979-06-25 1979-06-25 Defect remedying system for bubble memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7910579A JPS563494A (en) 1979-06-25 1979-06-25 Defect remedying system for bubble memory

Publications (1)

Publication Number Publication Date
JPS563494A true JPS563494A (en) 1981-01-14

Family

ID=13680604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7910579A Pending JPS563494A (en) 1979-06-25 1979-06-25 Defect remedying system for bubble memory

Country Status (1)

Country Link
JP (1) JPS563494A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473974A (en) * 1980-06-30 1984-10-02 Tokyo Shibaura Denki Kabushiki Kaisha Storage tank and method for manufacturing the same
JPS60139764A (en) * 1983-12-27 1985-07-24 Fujitsu Ltd Method for curing thermosetting silicone resin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473974A (en) * 1980-06-30 1984-10-02 Tokyo Shibaura Denki Kabushiki Kaisha Storage tank and method for manufacturing the same
JPS60139764A (en) * 1983-12-27 1985-07-24 Fujitsu Ltd Method for curing thermosetting silicone resin

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