GB1371597A - Bubble domain memory system - Google Patents
Bubble domain memory systemInfo
- Publication number
- GB1371597A GB1371597A GB220773A GB220773A GB1371597A GB 1371597 A GB1371597 A GB 1371597A GB 220773 A GB220773 A GB 220773A GB 220773 A GB220773 A GB 220773A GB 1371597 A GB1371597 A GB 1371597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- domain
- path
- pass
- storage
- unit
- 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.)
- Expired
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
- G11C29/86—Masking faults in memories by using spares or by reconfiguring in serial access memories, e.g. shift registers, CCDs, bubble memories
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
- G11C19/0875—Organisation of a plurality of magnetic shift registers
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Hardware Redundancy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24902672A | 1972-05-01 | 1972-05-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1371597A true GB1371597A (en) | 1974-10-23 |
Family
ID=22941730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB220773A Expired GB1371597A (en) | 1972-05-01 | 1973-01-16 | Bubble domain memory system |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4923546A (it) |
CA (1) | CA1009367A (it) |
DE (1) | DE2302139A1 (it) |
FR (1) | FR2182840B1 (it) |
GB (1) | GB1371597A (it) |
IT (1) | IT978273B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5816264B2 (ja) * | 1974-12-09 | 1983-03-30 | 株式会社日立製作所 | ジキバブルメモリソウチ |
JPS51118341A (en) * | 1975-04-11 | 1976-10-18 | Hitachi Ltd | Shift register type memory |
JPS51138344A (en) * | 1975-05-26 | 1976-11-29 | Hitachi Ltd | Memory device |
US4070651A (en) * | 1975-07-10 | 1978-01-24 | Texas Instruments Incorporated | Magnetic domain minor loop redundancy system |
JPS5318926A (en) * | 1976-08-06 | 1978-02-21 | Hitachi Ltd | Auxiliary loop switching circuit for magnetic bubble memory unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1181577A (fr) * | 1956-08-23 | 1959-06-17 | Bayer Ag | Appareil mélangeur |
DE1249926B (de) * | 1961-08-08 | 1967-09-14 | Radio Corporation of America New York, NY (V St A) | Einrichtung zum Umadressieren fehlerhafter Speicherstellen eines beliebig zuganglichen Hauptspeichers in einer Datenverarbeitungsanlage |
GB1010008A (en) * | 1962-04-30 | 1965-11-17 | Inv S Finance Corp | A pressure regulator for injection of a plastic material |
US3331058A (en) * | 1964-12-24 | 1967-07-11 | Fairchild Camera Instr Co | Error free memory |
NL149927B (nl) * | 1968-02-19 | 1976-06-15 | Philips Nv | Woordgeorganiseerd geheugen. |
-
1973
- 1973-01-16 GB GB220773A patent/GB1371597A/en not_active Expired
- 1973-01-17 DE DE19732302139 patent/DE2302139A1/de active Pending
- 1973-01-19 IT IT1935373D patent/IT978273B/it active
- 1973-01-23 FR FR7304185A patent/FR2182840B1/fr not_active Expired
- 1973-01-24 CA CA162,351A patent/CA1009367A/en not_active Expired
- 1973-01-29 JP JP48011216A patent/JPS4923546A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2182840A1 (it) | 1973-12-14 |
IT978273B (it) | 1974-09-20 |
DE2302139A1 (de) | 1973-11-22 |
CA1009367A (en) | 1977-04-26 |
FR2182840B1 (it) | 1976-05-14 |
JPS4923546A (it) | 1974-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5475640A (en) | Method and apparatus for inhibiting a predecoder when selecting a redundant row line | |
US8004912B2 (en) | Block redundancy implementation in hierarchical rams | |
US4660179A (en) | Semiconductor memory device with switching for redundant cells | |
US3701125A (en) | Self-contained magnetic bubble domain memory chip | |
KR940022845A (ko) | 반도체 메모리 및 용장 어드레스 기입방법 | |
KR950034277A (ko) | 메모리 회로용 리던던시 회로 | |
JPS6329360B2 (it) | ||
GB2209858A (en) | Semiconductor memory with redundant cells | |
US7075855B1 (en) | Memory output timing control circuit with merged functions | |
GB1371597A (en) | Bubble domain memory system | |
US2933721A (en) | Gated magnetic recording head | |
US3017617A (en) | Magnetic transducer | |
KR950009744A (ko) | 반도체 기억 장치 | |
US5327381A (en) | Redundancy selection apparatus and method for an array | |
JP2002083500A (ja) | 磁気抵抗メモリ効果を有するメモリセルを備えた集積メモリ | |
KR960016500B1 (ko) | 반도체 메모리 장치 | |
US3750154A (en) | Bubble domain chip arrangement | |
US3056948A (en) | Magnetic memory circuit | |
US3991411A (en) | Single decoder bubble domain chip organization | |
GB1459208A (en) | Load selection and current switching system | |
GB1112495A (en) | Fault tolerant addressing circuit | |
EP1662510B1 (en) | Arrangement of write lines in an MRAM device | |
US3483541A (en) | Memory protection apparatus | |
GB762057A (en) | Improvements in or relating to electronic magnetic recording systems | |
JP3582773B2 (ja) | 半導体記憶装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |