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Document Title |
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7602638 |
Semiconductor memory device
A semiconductor memory device is provided which can achieve high performance, such as an improvement in reliability, an improvement in yield, and the like, without increasing the chip area. The...
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5754465 |
No physical movement component record reproduce device and flat display device
A non-physical movement component recording and reproducing device produces a pair of special waves with special waveforms that form a special stationary waveform. An electrically-conducting media...
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4608677 |
Magnetic bubble store
The invention relates to a magnetic bubble store. This store comprises a magnetic garnet layer (1), in which can be formed magnetic bubbles, which are respectively localized by cells. Each cell...
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4592017 |
Magnetic bubble memory
A magnetic bubble memory is formed of a series of longitudinally oriented minor registers and at least one transversely oriented major access register, all of these registers having patterns with...
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4578651 |
Magnetooptical modulator
In a magnetic layer of a magnetooptical modulator having fixed magnetic single domain areas, the areas of the layer present between the single domain areas are made electrically conductive by...
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4550389 |
Apparatus and method for switching a magnetic domain lens
A magnetic domain device has at least one post element formed from a material that exhibits magnetic domain characteristics and that is positioned on a nonmagnetic substrate material. A pair of...
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4535422 |
Magnetic bubble memory with unimplanted motifs
The invention relates to a magnetic bubble memory having a first layer of monocrystalline magnetic material with at least one crystallographic axis having the property of being aplanar easy...
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4507754 |
Magnetic bubble propagation device
This device comprises an ionically implanted magnetic garnet layer, in which are defined non-implanted patterns and an electrically conductive layer superimposed on the garnet layer and insulated...
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4493054 |
Magnetic bubble store
A magnetic bubble store including at least two series of longitudinally oriented major shift registers and a rotating magnetic field for producing a displacement of the bubbles in the minor...
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4476544 |
Current-controlled magnetic domain memory
A current-controlled domain memory comprises a register for propagating magnetic domains in a magnetizable layer. The register comprises a meandering current-conductor pattern. The pattern can be...
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4435784 |
Multi-replicator stretcher detector
A detector for magnetic bubble domain devices including an input path for receiving and propagating magnetic bubble domains, an expander device which intersects the input path and functions to...
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4415989 |
Dual conductor current access magnetic bubble memory
In a dual-conductor type current-access magnetic bubble memory, a major loop is provided with a zigzag propagation path through which the major loop is connected with a plurality of minor loops,...
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4387443 |
Magnetic bubble device
A dual-conductor type current-access magnetic bubble device comprises apertured conductors on which apertured magnetic sheets having the same configuration as the corresponding conductors are...
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4314358 |
Segmented, conductor access, magnetic bubble memory
A conductor-access, magnetic bubble memory organized in the major-minor mode has minor loops separated into minor loop segments. The segments can be powered for moving bubbles selectively only...
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4280195 |
Planar and near planar magnetic bubble circuits
A magnetic bubble circuit and process for the manufacture of same is disclosed in which a pattern of permalloy elements is overlaid on a substantially planar surface contiguous with the top surface...
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4238837 |
Domain drag effect devices
A domain drag effect stripline pattern of conductive magnetic bubble material deposited upon a substrate is located in a magnetic bias field preferably normal to the plane of the stripline....
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4229805 |
Magnetic bubble-domain device
A magnetic domain device comprising a layer of a magnetic material for the formation of magnetic domains, for example bubbles, under the influence of a bias magnetic field and a propagation...
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4228523 |
Conductor access bubble memory arrangement
Continuous film type, current-access bubble memories are designed for low power operation by including, along the current paths, areas of reduced width. The areas of reduced widths are...
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4218762 |
Device for close-packed magnetic domains
A device for storing digital information in the form of magnetic domains including at least two ferrimagnetic layers on a substrate. The ferrimagnetic layers are separated by a compensation wall...
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4187555 |
Conductor access magnetic bubble memory arrangement
A conductor access, magnetic bubble memory is organized in a major-minor mode by including transfer locations in the conducting layers which define the normal bubble propagation implementation. An...
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4181978 |
Magnetic bubble memory with expander-detector arrangement
An expander-detector arrangement for a conductor-access, magnetic bubble memory is realized by the inclusion in an electrically-conducting layer in which bubble propagation currents are impressed...
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4142247 |
Conductor-driven magnetic bubble memory with an expander-detector arrangement
A magnetic bubble memory with a single electrically-conducting layer for defining a bubble propagate arrangement is adapted to provide a compatible bubble expander detector by a sequence of...
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4128898 |
Structuring of bubble domains in a bubble domain memory plane
Defining the structuring of bubble domains in the magnetizable layer of a bubble domain memory plane is determined by modification of the magnetic characteristics of the magnetizable layer in the...
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4122539 |
Magnetic bubble element
A magnetic bubble element which is useful as an image information processing element. A thin film made of a magnetic bubble forming material has a plurality of wedge-formed patterns made of a...
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4100608 |
Exchange stack buffer memory
There is provided a memory system, for example, a magnetic bubble domain memory, which includes an exchange stack buffer memory between a main storage area and other portions of a bubble domain...
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4085454 |
Method and apparatus for the controlled generation of wall encoded magnetic bubble domains
Two parallel conductors are positioned on top of a magnetic layer where bubble domains are to be coded. The two parallel conductors are positioned to form a gap therebetween of a particular size....
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4064496 |
Wavering conductor loops for magnetic domain memories
Disclosed are magnetic domain (bubble) memory arrays and correlator type memory arrays in uniaxially anisotropic crystals which utilize wavering loop conductor patterns at each bit location...
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4062002 |
Device for biasing bubble domains
A device adapted for biasing bubble domains in a low externally applied magnetic bias field. This device is suitable for use when isolated bubbles or a column of bubbles are translated to or from a...
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4062003 |
One-level magnetic bubble switching device
There is described an improved switching device for use in magnetic bubble domain systems. In this device, chevron propagation paths are utilized. A pair of substantially parallel conductors are...
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4059829 |
Multi state magnetic bubble domain cell for random access memories
A multi-state memory cell which uses magnetic bubble domains in uniaxial material is described. The cell includes a channel in which a number of stable bubble positions separated by barriers is...
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4058801 |
Field access method for bubble memories
Field access system for use in propagation of bubbles is disclosed. The field access system combines discrete drive elements with a continuous drive film. An example is a Permalloy overlay...
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4040020 |
Bubble lattice device
A device adapted for use in a low externally applied magnetic field, for example, 15 Oe, with a bubble lattice system is described. The device has a Y shaped channel in which bubbles are propagated...
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4040038 |
Column accessing of elements in confined arrays
A technique for accessing interactive elements, such as magnetic bubble domains, which are in confined arrays where the elements are located with respect to one another in accordance with...
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4017890 |
Intermetallic compound layer in thin films for improved electromigration resistance
A method and resulting structure for forming narrow intermetallic stripes which will carry high currents on bodies such as semiconductors, integrated circuits, magnetic bubbles structures, etc. The...
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3974487 |
Magnetic bubble transmission system
A magnetic bubble transmission system in which a magnetic bubble is retained in a magnetic thin plate under an appropriate bias magnetic field applied to said magnetic thin plate in a direction...
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3971037 |
Magnetic bubble shift register
A digital data storage element using magnetic bubbles, or small cylindrical magnetic domains formed in a thin film of magnetic material, in which binary information is stored by providing two...
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3952291 |
Readout system for magnetic bubbles
A technique for enhancing readout of magnetic bubble data by producing two separate, complementary multiplicities of bubbles representing respectively the presences and the absences of bubbles in a...
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3893089 |
Two-phase propagation of cylindrical magnetic domains
A two-phase conductor means for propagation of cylindrical magnetic domains (bubble domains) in an underlying magnetic medium, such as orthoferrite or garnet. By pulsing parallel conductors...
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3879716 |
Mutually exclusive magnetic bubble propagation circuits with discrete elements
A magnetic bubble overlay circuit element, nicknamed the "crow-foot" element, has a straight bar or stem portion with a pair of angled arms in the form of staggered barb-like projections. One of...
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3878542 |
Movable magnetic domain random access three-dimensional memory array
There is disclosed a random access memory device wherein binary bits of information are stored by moving mobile cylindrical magnetic domains in anisotropic ferromagnetic crystal platelets between...
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3876994 |
PLANAR BIAS FIELD CONTROL OF MAGNETIC BUBBLE DOMAIN APPARATUS
A bias magnetic field H p is produced in the plane of the magnetic sheet in which bubble domains exist, in any type of bubble domain apparatus. This planar bias field alters the spin system within...
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3875568 |
Magnetic bubble circuit with hard-soft overlay
A ferromagnetic overlay pattern for a field-accessed bubble chip includes successive linear segments of alternately high and low magnetic coercivity. The hard magnetic elements are given a...
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3845477 |
METHOD FOR CONTROLLING MAGNETIZATION IN GARNET MATERIAL AND DEVICES SO PRODUCED
Magnetization barriers for a variety of magnetic garnets containing partial non-magnetic substitutional ions replacing iron are altered by annealing. A relatively large order change in...
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3792451 |
NON-DESTRUCTIVE SENSING OF VERY SMALL MAGNETIC DOMAINS
A magneto-resistive sensing technique for detection of very small single-wall magnetic domains. An apparatus is provided in which magneto-resistive sensing elements are located on a magnetic...
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3745542 |
METHOD AND APPARATUS FOR SELECTIVELY ACCESSING A SERIAL STRING OF ENHANCED PROPAGATION PULSE WRITE CIRCUITS
Selected write circuits in a serial string of enhanced propagation pulse write circuits are activated by modulating the magnetic bias fields in the local vicinity of the selected circuits a...
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3711842 |
SINGLE WALL MAGNETIC DOMAIN LOGIC ARRANGEMENT
A pair of closed loop domain propagation channels each of which exhibits a domain in only one of two laterally displaced positions in each stage is adapted herein to provide a simple autonomous...
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3711840 |
WRITE CIRCUIT USING ENHANCED PROPAGATION PULSES FOR LATERAL DISPLACEMENT CODING OF PATTERNS OF SINGLE-WALL MAGNETIC DOMAINS
A "write" feature is incorporated into the propagation circuitry of a lateral displacement shift register by reducing the lateral dimensions of the serpentine propagation conductor pattern at...
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3701129 |
SELF-BIASING SINGLE WALL DOMAIN ARRANGEMENT
A zero bias, single wall domain propagation arrangement is achieved by forming a layer of magnetic material in which single wall domains can be moved in stripes having dimensions to be...
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3699548 |
SINGLE WALL DOMAIN LATERAL DISPLACEMENT
The multistage rail arrangement known as the lateral displacement coding arrangement defines a pair of positions for a single wall domain in each stage of a closed loop channel. Turns in the path...
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3696347 |
SINGLE WALL DOMAIN INFORMATION TRANSFER ARRANGEMENT
The transfer of information between single wall domain propagation channels in each of which information is represented by the side of a rail along which a domain moves is affected by a relay...
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