JPS5597085A - Bubble memory chip - Google Patents
Bubble memory chipInfo
- Publication number
- JPS5597085A JPS5597085A JP361179A JP361179A JPS5597085A JP S5597085 A JPS5597085 A JP S5597085A JP 361179 A JP361179 A JP 361179A JP 361179 A JP361179 A JP 361179A JP S5597085 A JPS5597085 A JP S5597085A
- Authority
- JP
- Japan
- Prior art keywords
- loop
- information
- defective
- memory chip
- writing
- 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 omit the external memory by storing the defective loop information proper to the bubble memory chip into the bubble memory chip.
CONSTITUTION: In case plural number of minor loop 1 have some defects, the defect information is stored into paired auxiliary loop 3. The defective loop information is read out prior to the writing into minor loop 1. For instance, when the defective information of auxiliary loop #1 shows the defect, the new writing information is not supplied to the position where the corresponding information existed and with no starting given to generator 8. In case the information of auxiliary loop #2 is normal, generator 8 starts to write the new information into the corresponding position. With one circulation given along major loop 2, transfer gate 4 is opened to carry out the transfer-in action. Thus the writing equivalent to one word completes. Owing to installation of auxiliary loop 3, the peripheral circuits concerning the defective loop control can be simplified.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP361179A JPS5597085A (en) | 1979-01-16 | 1979-01-16 | Bubble memory chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP361179A JPS5597085A (en) | 1979-01-16 | 1979-01-16 | Bubble memory chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5597085A true JPS5597085A (en) | 1980-07-23 |
Family
ID=11562279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP361179A Pending JPS5597085A (en) | 1979-01-16 | 1979-01-16 | Bubble memory chip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5597085A (en) |
-
1979
- 1979-01-16 JP JP361179A patent/JPS5597085A/en active Pending
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