JPS563494A - Defect remedying system for bubble memory - Google Patents
Defect remedying system for bubble memoryInfo
- 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
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
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)
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 |
-
1979
- 1979-06-25 JP JP7910579A patent/JPS563494A/en active Pending
Cited By (2)
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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