Class 365/11 - Generators

Subclass of Class 365 - Static information storage and retrieval
Definition: Subject matter where the bubble domain is generated or nucleated.
No. of patents: 33
Last issue date: 12/06/2005

Number	Title	Issue Date
6972982	Ring-shaped prism of a holographic ROM system A holographic system for storing data on an interference pattern in a hologram storage medium includes a light source for emitting a laser beam, a beam splitter, modulating means and a refractive material. The beam splitter divides the laser beam into a reference be...	12/06/2005
5072421	Magnetic memory and recording-reproducing method for the magnetic memory A magnetic memory has a substrate, a magnetic film provided on the substrate including a recording medium capable of producing a recording carrier, and a light waveguide layer on the magnetic film or on that surface of the substrate which is opposite to a...	12/10/1991
5014239	Magnetic bubble generator using plural conductors with common current source In a magnetic bubble generator having an ion-implanted track (1), a conductor pattern is composed of hairpin conductor patterns (5, 6) of two layers with an insulating layer (12) interlaid, and a part of intersection of the fore end parts of the gaps of t...	05/07/1991
4720814	Magnetic bubble generator for bubble memory in hybrid technology The bubble memory comprises a magnetic layer in which the magnetic bubble can move under the action of a rotary field, a deposited pattern formed from a high permeability magnetic material and separated from the magnetic layer by an electrical insulating ...	01/19/1988
4694424	Combined nucleate-replicate single wall domain generate structure A bubble generator for use in a bubble memory device combines a nucleating generator and replicating generator in a unified structure with first and second hairpins disposed at respective first and second regions to define nucleation and replication sites...	09/15/1987
4554464	Propagation delay generator A propagation delay generator is provided for controlling the duration of a bubble generate waveform of a bubble memory system. A first means is responsive to a digital input signal and provides an initializing signal to a current source. A capacitor is c...	11/19/1985
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 electrical drive lines associated with a post element permit ...	10/29/1985
4525807	Magnetic bubble store with non-implanted motifs and method for controlling the same A magnetic bubble store, using adjoining non-implanted motifs as bubble-propagating motifs, the store comprising 3n identical, electrically interconnected storage devices, n being a positive integer, which are produced on an identical circuit chip and eac...	06/25/1985
4504928	Current ramp generator A current ramp generator is provided for controlling the fall time of a bubble generate waveform of a bubble memory system. Gate circuitry is responsive to a digital input signal and provides an initializing signal to a current source. The current source ...	03/12/1985
4388700	Nucleation bubble generator for bubble domain devices A magnetic bubble domain device nucleation source for producing magnetic bubble domains is disclosed, in which bubble domains along with possibly unwanted duplicate bubble domains are produced in response to a current pulse. A first bubble domain guide st...	06/14/1983
4281395	Magnetic bubble memory device The magnetic bubble memory device of this invention is arranged such that a magnetic bubble detector and a nucleation type magnetic bubble generator in a chip are made to operate at different phases of the same operation cycle of a rotating magnetic field...	07/28/1981
4257109	Bubble nucleator A bubble (domain) generator comprising a pair of relatively long elements of suitable magnetic material, such as permalloy, separated by a narrow gap, near which bubbles will be generated in the bubble film by the combined effect of local in-plane and per...	03/17/1981
4152776	Magnetic bubble memory circuit with input swap and output replicate gates Magnetic bubble domain memory circuit in which magnetizable overlay patterns of magnetically soft material, e.g. permalloy, are provided as bubble propagation elements on a bubble-supporting magnetic layer to define major and minor bubble propagation path...	05/01/1979
4128895	Magnetic wall assisted bubble domain nucleator An improved magnetic bubble domain nucleator is provided which uses a magnetic wall, such as a charged wall, Neel wall, or Bloch wall, to assist nucleation. In a preferred embodiment, a magnetic charged wall is produced in an ion implanted region of a mag...	12/05/1978
4120042	Magnetic bubble information writing device A magnetic bubble information writing device capable of carrying out writing without erasing old information representing either "0" or "1" at a location, where new information is to be written, by means of only a single hairpin-like conductor loop is dis...	10/10/1978
4101971	Magnetic bubble information writing device A magnetic bubble information writing device in which a conductor loop is disposed on the magnetic bubble propagation circuit and in which magnetic bubbles are generated by sending pulse current through the conductor loop, the device having a means which ...	07/18/1978
4086661	Cylindrical magnetic domain element A cylindrical magnetic domain element is disclosed which utilizes a cylindrical magnetic domain (a magnetic bubble) produced by the application of a bias magnetic field to a magnetic sheet of orthoferrite, garnet or the like. Propagation patterns for the ...	04/25/1978
4086571	Magnetic bubble domain generator and annihilator Magnetic bubble domain generator and annihilator for use in a magnetic bubble domain memory device of the major-minor bubble propagation path type. The magnetic bubble domain generator and annihilator structure employs a thin metallic loop which is dispos...	04/25/1978
4058799	Block oriented random access bubble memory A block oriented random access memory (BORAM) magnetic bubble domain system which provides increased throughput of information and reduced access or read time for the same information as compared to existing major-minor or decoder accessed chip organizati...	11/15/1977
4056812	Fault tolerant magnetic bubble memory A field-access, magnetic bubble memory organized in a major-minor configuration includes an extra set of minor loops dedicated to fault correction. The loops of the extra set are coupled to a major path in a manner to move the information in the loops of ...	11/01/1977
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 between a bubble lattice column and either detector means...	08/02/1977
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 interactions therebetween. In order to improve the access time to a...	08/02/1977
4032905	Bubble domain circuit organization An on-chip bubble domain circuit organization. One or more storage registers are connected to a propagation path whereby data in the form of magnetic bubble domains (bubbles) may be transferred into and out of the storage registers. The propagation path i...	06/28/1977
4008463	Integrated bubble nucleator A nucleator for producing reverse magnetized domains in an amorphous magnetic material capable of supporting such domains. The nucleator is comprised of a current carrying conductor whose current carrying path includes a portion of the amorphous magnetic ...	02/15/1977
4004287	Hollow magnetic domain recording device A recording device in which hollow magnetic domains are produced in plates of, for example, orthoferrite by means of a magnetic field. The region within which the field can vary without said domains disappearing depends upon the coercive force of the mate...	01/18/1977
4002803	Magnetic bubble devices with controlled temperature characteristics The temperature variation of the bubble collapse field of a class of garnet magnetic bubble layer materials is selected by control of octahedral site substitution during layer growth. This permits the growth of layers, whose temperature dependence of crit...	01/11/1977
4001673	Method of testing and repairing magnetic bubble domain chip A method of both testing all loops of a long serial magnetic bubble domain chip, and repairing the chip for automatic bypass of defective loops. Each repair station associated with each loop is sequentially loaded with a bubble domain. Then new domains ar...	01/04/1977
3996577	Method and apparatus for the controlled generation of wall-encoded magnetic bubble domains A magnetic layer is exchange coupled to a bubble medium in an area where bubble domains are nucleated, and is used together with or without an externally applied in-plane magnetic field to controllably generate bubble domains with either one pair (S = 0) ...	12/07/1976
3975710	Character pattern recognition method and apparatus using feature enhanced magnetic domain patterns A character pattern recognition method and apparatus for recognizing an unknown character pattern in accordance with a correlation between the unknown character pattern and each known standard character pattern, in which the unknown character pattern is t...	08/17/1976
3967002	Method for making high density magnetic bubble domain system A method for making a high density magnetic bubble domain system including the functions of read, write, storage, transfer, and annihilation. Only three masking steps are required, of which only one requires critical alignment. The proces makes use of the...	06/29/1976
3946372	Characteristic temperature-derived hard bubble suppression Normal single wall magnetic or "bubble" domains are generated in bubble domain materials without generating hard bubble domains by selecting the composition based upon a predetermined minimum temperature. This hard bubble suppression is based upon the fac...	03/23/1976
3938110	Method of controlling magnetic strip domains A method of controlling magnetic strip domains is disclosed wherein a magnetic material having at least one ion-implanted region is placed under a bias magnetic condition which permits magnetic strip domains to exist in said magnetic material and subjecte...	02/10/1976
3938111	Magnetic device for producing domains Magnetic device comprising at least one thin layer of a magnetisable material which has a preferred direction of magnetisation substantially at right angles to the surface of the layer. Magnetic domains are produced by a magnetic field which is situated s...	02/10/1976

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Class 365/11 - Generators