GB997492A - Data transfer apparatus - Google Patents
Data transfer apparatusInfo
- Publication number
- GB997492A GB997492A GB4000762A GB4000762A GB997492A GB 997492 A GB997492 A GB 997492A GB 4000762 A GB4000762 A GB 4000762A GB 4000762 A GB4000762 A GB 4000762A GB 997492 A GB997492 A GB 997492A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stripline
- elements
- films
- film
- thin
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
-
- 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
- G11C19/0808—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation
- G11C19/0825—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation using a variable perpendicular magnetic field
-
- 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
- G11C19/085—Generating magnetic fields therefor, e.g. uniform magnetic field for magnetic domain stabilisation
-
- 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
- G11C19/0858—Generating, replicating or annihilating magnetic domains (also comprising different types of magnetic domains, e.g. "Hard Bubbles")
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
- H03K17/84—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices the devices being thin-film devices
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Hall/Mr Elements (AREA)
- Coils Or Transformers For Communication (AREA)
- Magnetic Heads (AREA)
Abstract
997,492. Circuits employing thin magnetic films. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 23, 1962 No. 40007/62. Heading H3B. Two thin magnetic films 1 and 2, Figs. 1 and 2, coupled together by a stripline 3 have the coupling between the film 1 and film 2 higher than the coupling between film 2 and film 1. The directional dependence of the coupling is shown to be due to the rectangular shape and different orientations of the films 1 and 2 and to their different permeabilities. The distance between the two conductors of the stripline 3 is made proportional to the width of the stripline 3 in order to keep the characteristic impedance of the stripline independent of position. In the shift register shown in Fig. 6 the controlling element is formed by two thin films 14 and 15 whereas the element controlled by these films is formed by thin films 16, 17 connected in parallel with respect to stripline 10. For the purpose of transferring information to the next stage these films 16 and 17 are connected in series with respect to stripline 10<SP>1</SP>. In the shift register of Fig. 14 the rectangular thin films 51-55 are arranged with their easy axis of magnetization at a small angle e to the axis of a stripline 45 carrying a rectangular pulse current i. Stripline 60 carries a constant bias current i 2 so that the effect of currents i 1 and i 2 together is to produce magnetic fields alternately tending to switch the A elements 51, 53, 55 and the B elements 52 and 54 from the easy direction to a hard direction. As an A element is switching to the hard direction the B elements are returning to the easy direction so that the pulses induced in the striplines 61-65 and having a polarity indicative of the data stored in the A elements influence the choice of the easy direction by the B elements. Because of the directional dependence of the couplings the B elements always respond to the information stored in the A element to their left. During the next half cycle information is transferred from the B elements to the A elements to their right. The shift register may be formed by producing a thin copper layer 50 on a glass substrate the other components being mounted thereon with silicon oxide insulating layers between. The copper layer 50 may form the return conductor for the strip lines.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1243761A CH397766A (en) | 1961-10-27 | 1961-10-27 | Signal transmission arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB997492A true GB997492A (en) | 1965-07-07 |
Family
ID=4383017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4000762A Expired GB997492A (en) | 1961-10-27 | 1962-10-23 | Data transfer apparatus |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE624011A (en) |
CH (1) | CH397766A (en) |
DE (1) | DE1266811B (en) |
ES (1) | ES281877A1 (en) |
GB (1) | GB997492A (en) |
NL (1) | NL284739A (en) |
SE (1) | SE310706B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL233342A (en) * | 1957-11-18 |
-
0
- BE BE624011D patent/BE624011A/xx unknown
- NL NL284739D patent/NL284739A/xx unknown
-
1961
- 1961-10-27 CH CH1243761A patent/CH397766A/en unknown
-
1962
- 1962-10-16 SE SE1107662A patent/SE310706B/xx unknown
- 1962-10-23 GB GB4000762A patent/GB997492A/en not_active Expired
- 1962-10-24 DE DE1962J0022545 patent/DE1266811B/en active Pending
- 1962-10-26 ES ES281877A patent/ES281877A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE624011A (en) | |
SE310706B (en) | 1969-05-12 |
ES281877A1 (en) | 1963-04-16 |
DE1266811B (en) | 1968-04-25 |
CH397766A (en) | 1965-08-31 |
NL284739A (en) |
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