GB917797A - Improvements in or relating to magnetic core memory devices - Google Patents
Improvements in or relating to magnetic core memory devicesInfo
- Publication number
- GB917797A GB917797A GB11998/61A GB1199861A GB917797A GB 917797 A GB917797 A GB 917797A GB 11998/61 A GB11998/61 A GB 11998/61A GB 1199861 A GB1199861 A GB 1199861A GB 917797 A GB917797 A GB 917797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- core
- flux
- april
- depends
- 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
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/08—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using multi-aperture storage elements, e.g. using transfluxors; using plates incorporating several individual multi-aperture storage elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Coils Or Transformers For Communication (AREA)
- Protection Of Transformers (AREA)
Abstract
917,797. Magnetic storage devices. AMP Inc. April 4, 1961 [April 13, 1960], No. 11998/61. Class 38 (2). [Also in Group XXXIX] A transfluxor type device for storing any one of a series of discrete signal levels comprises a core 12 of rectangular hysteresis loop material, transformer action between A.C. energized read winding 24 and output winding 26 linking aperture 16 being permitted when a signal applied to set winding 22 reverses all or an appropriate part of the flux in the material between apertures 16 and 14, reversal of the flux around the outer half of the core by the short signal pulses being prevented by the low resistance closed winding 28. The A.C. output then depends on the amount of flux switched which depends on the signal level stored. The clearing pulse applied to winding 20 when the core is to be cleared is relatively long so that winding 28 does not prevent switching of the flux in the core portion it links during clearing. The core may be of ferrite or steel ribbon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22036A US3197745A (en) | 1960-04-13 | 1960-04-13 | Magnetic core circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB917797A true GB917797A (en) | 1963-02-06 |
Family
ID=21807488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11998/61A Expired GB917797A (en) | 1960-04-13 | 1961-04-04 | Improvements in or relating to magnetic core memory devices |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3197745A (en) |
| BE (1) | BE602291A (en) |
| CH (1) | CH390320A (en) |
| GB (1) | GB917797A (en) |
| NL (1) | NL263510A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376427A (en) * | 1961-01-30 | 1968-04-02 | American Mach & Foundry | Transfluxor magnetic switch |
| NL128642C (en) * | 1961-10-12 | |||
| NL134124C (en) * | 1963-01-04 | |||
| US3315239A (en) * | 1963-05-24 | 1967-04-18 | Gen Signal Corp | Multiaperture core incremental pulse counter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2284406A (en) * | 1940-03-01 | 1942-05-26 | Gen Electric | Transformer |
| NL112670C (en) * | 1956-06-26 | |||
| US3077582A (en) * | 1956-08-22 | 1963-02-12 | Ibm | Magnetic core logical device |
-
0
- NL NL263510D patent/NL263510A/xx unknown
-
1960
- 1960-04-13 US US22036A patent/US3197745A/en not_active Expired - Lifetime
-
1961
- 1961-04-04 GB GB11998/61A patent/GB917797A/en not_active Expired
- 1961-04-06 BE BE602291A patent/BE602291A/en unknown
- 1961-04-13 CH CH435961A patent/CH390320A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL263510A (en) | |
| US3197745A (en) | 1965-07-27 |
| BE602291A (en) | 1961-10-31 |
| CH390320A (en) | 1965-04-15 |
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