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公开(公告)号：US3689902A
公开(公告)日：1972-09-05
申请号：US3689902D
申请日：1971-06-30
Applicant: IBM
Inventor： CHANG HSU , KEEFE GEORGE E , LIN YEONG S , ROSIER LAURENCE L
CPC classification number: G11C19/0875 , H03M7/002
Abstract: A decoder for cylindrical magnetic domain shift registers having means to clear the information from selected registers thus enabling new information to be written into those registers. The decoder is incorporated into 2N closed loop shift registers and uses only a small part of the storage area of the magnetic sheet in which domains exist. It is activated by 2N control lines (N pairs). Depending upon the activation of the decoder, the information in a selected shift register is passed to a clear means which sends it into one of two paths depending upon the activation of the clear means. One path brings the information to a detector for destructive readout, while the other path brings the information to a domain splitter. The domain splitter splits the input domains into two parts, one of which propagates to the detector while the other returns to the proper shift register. Thus, non-destructive readout (NDRO) or destructive read-out (DRO) is provided depending upon the activation of the clear means.
Abstract translation: 用于圆柱形磁畴移位寄存器的解码器具有从所选择的寄存器清除信息的装置，从而使新信息能够写入这些寄存器。 解码器被并入2N闭环移位寄存器中，并且仅使用存在域的磁性片的存储区域的一小部分。 它由2N个控制线（N对）激活。 根据解码器的激活，所选择的移位寄存器中的信息被传递到清除装置，根据清除装置的激活将其发送到两个路径之一。 一条路径将信息提供给检测器以进行破坏性读出，而另一条路径将信息带到域分割器。 域分配器将输入域分成两部分，其中一个传播到检测器，而另一个返回到适当的移位寄存器。 因此，根据清除装置的激活，提供非破坏性读出（NDRO）或破坏性读出（DRO）。
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公开(公告)号：US3925768A
公开(公告)日：1975-12-09
申请号：US42900073
申请日：1973-12-27
Applicant: IBM
Inventor： LIN YEONG S
CPC classification number: G11C19/0816
Abstract: Gapless, double-sided propagation structures are provided for implementing the continuous movement of magnetic bubble domains under the control of a reorienting in-plane field. Propagation is achieved by using two identical disc circuits on both sides of the bubble material displaced from each other by one-half of periodicity. The discs in each circuit are disposed in tangential engagement with each other and the two circuits may follow any desired path provided the circuits are in alignment with each other.
Abstract translation: 提供无差的双面传播结构，用于在重新定向的面内场的控制下实现磁性气泡畴的连续运动。 通过在泡沫材料的两侧上使用两个相同的盘形电路来实现传播，所述两个相同的盘形电路彼此相隔一半的周期性。 每个电路中的盘彼此相切地配置，并且如果电路彼此对准，则两个电路可以遵循任何期望的路径。
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公开(公告)号：US3914751A
公开(公告)日：1975-10-21
申请号：US42900173
申请日：1973-12-27
Applicant: IBM
Inventor： KEEFE GEORGE E , LIN YEONG S , ROSIER LAURENCE L
CPC classification number: G11C19/0816
Abstract: A gapless, multithickness propagation structure is provided for implementing the continuous movement of magnetic bubble domains under the control of a reorienting in-plane field. Propagation is achieved by providing two parallel rows of H-shaped overlays of soft magnetic material in spaced-apart end-to-end relation adjacent to one surface of a magnetic medium having magnetic bubble domains therein. The ends of the H-shaped overlays in each row are connected to each other and the ends of the H-shaped overlays in the adjacent row by means of a transversely extending overlay strip having a thickness approximately one-half the thickness of the H-shaped overlays. High storage density, with a cell size 8W2 is obtained, where W is the line width of the elements in the structure.
Abstract translation: 提供无间隙的多点传播结构，用于在重新定向的平面场的控制下实现磁性气泡畴的连续运动。 传播是通过提供两个平行的软磁材料的H形覆盖层，其间隔开的端对端关系邻近其中具有磁性气泡畴的磁性介质的一个表面。 每行中的H形叠层的端部彼此连接，并且H形的端部通过横向延伸的覆盖带覆盖在相邻行中，其厚度大约为H的厚度的一半， 形状叠加。 获得高存储密度，单元尺寸为8W2，其中W是结构元件的线宽。
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公开(公告)号：CA1071760A
公开(公告)日：1980-02-12
申请号：CA238110
申请日：1975-10-20
Applicant: IBM
Inventor： KEEFE GEORGE E , KRYDER MARK H , LIN YEONG S
IPC: G11C11/14 , C10M159/20 , G11C19/08 , H01F10/00
Abstract: SINGLE SIDED, HIGH DENSITY BUBBLE DOMAIN PROPAGATION DEVICE A magnetic bubble domain propagation device which is single sided and can be used to move bubble domains in amorphous magnetic films. The propagation structure is comprised of either one or two layers located on a single side of the amorphous magnetic medium. Preferably, the propagation elements in each layer are contiguous to one another to provide maximum density. In a preferred embodiment, the propagation elements are circular, but other geometries can be used. The amorphous magnetic material is deposited over these underlayer propagation elements in order to create a change in the profile of the amorphous material. This change in profile of the amorphous material acts as a restraining barrier to bubble domain movement, so that the bubble domains will move along the proper channel without drifting to other propagation channels, and will move from one propagation element to the next without merely idling at any of the propagation elements.
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公开(公告)号：CA1071759A
公开(公告)日：1980-02-12
申请号：CA238108
申请日：1975-10-20
Applicant: IBM
Inventor： ALMASI GEORGE S , HENDEL ROBERT J , KEEFE GEORGE E , LIN YEONG S , MCGOUEY RICHARD P
Abstract: 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 process makes use of the fact that magnetic disks can be placed on non ion implanted regions without adversely affecting the propagation properties of the implanted regions. Thus, the magnetic disks can be used to define ion implantation masks as well as for providing functions such as generation, propagation, reading, and annihilation. Magnetic elements for generation, storage and propagation, reading and annihilation are deposited in the same non-critical masking step, while all conductors used for writing, reading, and transfer are deposited by a single masking step requiring critical alignment.
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Patent Agency Ranking
公开(公告)号：FR2413755A1
公开(公告)日：1979-07-27
申请号：FR7834440
申请日：1978-11-30
Applicant: IBM
Inventor： ALMASI GEORGE S , LIN YEONG S
Abstract: A bubble domain storage system is described which has the best features of contiguous element bubble propagation systems and bubble lattice file systems. An array of magnetic bubble domains, such as a lattice, is moved along contiguous propagation patterns in response to the reorientation of a magnetic field in the plane of the bubble domain film. Adjacent rows of bubble domains in the array move in opposite directions to provide individual storage loops within the array. Information accessing can be achieved by the use of input/output registers similar to those used in other contiguous disk bubble domain storage systems. For example, the storage system can be a conventional major/minor loop organization using contiguous element propagation patterns for the storage registers and for the input/output registers. Every bit position in the storage registers is populated by a bubble domain where the average distance between adjacent bubble domains is less than that in a system where bubbles are isolated from one another. For example, the storage registers can be arranged so that the separation between adjacent bubble domains in the storage registers is 2-3 bubble diameters. The bubbles are coded in terms of the magnetic properties of individual bubble domains, or a double layer structure can be used in which an array of bubble domains is in one layer and information bubble domains are in the other layer, coded in accordance with presence/absence. Viewed another way, the invention is a bubble storage system using contiguous propagation elements which is fully populated by interacting bubble domains.
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公开(公告)号：FR2310582A1
公开(公告)日：1976-12-03
申请号：FR7608564
申请日：1976-03-12
Applicant: IBM
Inventor： LIN BURN J , LIN YEONG S
Abstract: A dynamic pattern display and optical data processing system is provided including magnetic bubble devices which may be operated in real-time to produce two and three dimensional patterns such as holograms, kinoform lenses and complex filters. Th display pattern is obtained by directing a linearly polarized light beam through a combination including a one-quarter waveplate, a plurality of two-dimensional magnetic bubble arrays and another one-quarter wave plate, all combined in a stack arrangement. In one embodiment a combination is provided which functions as a phase filter and in another embodiment including more bubble arrays, the combination functions as a phase and intensity filter. The display patterns are multi-phase or multi-tone (gray scale) and multi-phase in character. Each magnetic bubble array in the phase and phase and intensity filter embodiments constitutes a layer which differs in thickness from the other magnetic bubble layers. Each magnetic bubble array is also electronically driven by its own bubble propagating circuit which produces, in most embodiments, a different "local phase" or "local transmissivity" which is a function of whether a bubble or an empty space is propagated to the location. The number of levels of transmitted phase or intensity and phase is an exponential function of the number of magnetic bubble layers, thus n layers provides 2n steps of transmitted phase or intensity and phase modification and a four layer structure provides a sixteen level phase or phase and intensity display. The electronic portion of the structure may be driven by signals representing mathematical expressions, patterns, manual inputs and the like to generate holograms, kineform lenses, complex filters, three-dimensional television pictures, and other display and optical information processing applications.
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公开(公告)号：CA1068830A
公开(公告)日：1979-12-25
申请号：CA268718
申请日：1976-12-24
Applicant: IBM
Inventor： GIESS EDWARD A , KEEFE GEORGE E , LIN YEONG S
IPC: G11C11/14 , G11C19/08 , H01F10/00 , H01F10/24 , H01L21/265
Abstract: ION IMPLANTED BUBBLE PROPAGATION STRUCTURE An improved ion implanted propagation structure for movement of magnetic bubble domains in a storage medium which comprises an additional magnetic layer capable of ion implantation in combination with a bubble domain storage layer in which the bubble domains exist and are moved by the ion implanted layer in response to the reorientation of a magnetic field in the plane of the ion implanted layer. The ion implanted layer (drive layer) can be in intimate contact with the storage layer and exchange coupled thereto, or can be separated from the storage layer by a non-magnetic spacer. The ion implanted layer can comprise different geometry propagation elements and its thickness, 4.pi.M, and other magnetic properties are generally selected to provide flux matching of a charged wall in the ion implanted layer with the flux emanating from the bubble domains to be moved. The charged wall is coupled to the bubble domain by exchange coupling and/or magnetostatic coupling.
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公开(公告)号：FR2296911A1
公开(公告)日：1976-07-30
申请号：FR7536912
申请日：1975-11-28
Applicant: IBM
Inventor： ALMASI GEORGE S , HENDEL ROBERT J , KEEFE GEORGE E , LIN YEONG S , MCGOUEY RICHARD P
Abstract: 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 fact that magnetic disks can be placed on non ion implanted regions without adversely affecting the propagation properties of the implanted regions. Thus, the magnetic disks can be used to define ion implantation masks as well as for providing functions such as generation, propagation, reading, and annihilation. Magnetic elements for generation, storage and propagation, reading and annihilation are deposited in the same non-critical masking step, while all condutors used for writing, reading, and transfer are deposited by a single masking step requiring critical alignment.
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公开(公告)号：FR2296909A1
公开(公告)日：1976-07-30
申请号：FR7534735
申请日：1975-11-07
Applicant: IBM
Inventor： KEEFE GEORGE E , KRYDER MARK H , LIN YEONG S
IPC: G11C11/14 , C10M159/20 , G11C19/08 , H01F10/00
Abstract: A magnetic bubble domain propagation device which is single sided and can be used to move bubble domains in amorphous magnetic films. The propagation structure is comprised of either one or two layers located on a single side of the amorphous magnetic medium. Preferably, the propagation elements in each layer are contiguous to one another to provide maximum density. In a preferred embodiment, the propagation elements are circular, but other geometries can be used. The amorphous magnetic material is deposited over these underlayer propagation elements in order to create a change in the profile of the amorphous material. This change in profile of the amorphous material acts as a restraining barrier to bubble domain movement, so that the bubble domains will move along the proper channel without drifting to other propagation channels, and will move from one propagation element to the next without merely idling at any of the propagation elements.
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