Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7206212 | Content addressable memory (CAM) device with entries having ternary match and range compare functions A content addressable memory (CAM) (200) is disclosed that includes a value match mode, where a comparand value can be compared to a masked data value, and a range match mode where a comparand value can be compared to an upper range limit UR and a lower range... | 04/17/2007 |
| 6900029 | Method of selection of a population or subpopulation of a sample utilizing particles and gravity sedimentation A separation procedure for separating a selected desired or undesired population from a biological sample utilizing relatively heavy, dense particles and gravity sedimentation. The particles have one or more reactants bound thereto which are specific to and will bin... | 05/31/2005 |
| 5140547 | Magnetic bubble recording element A magnetic bubble recording element including a substrate having a transfer channel, a first magnetic layer for carrying a magnetic bubble and being formed on the substrate within and outside of the transfer channel with a surface of the first magnetic la... | 08/18/1992 |
| 4914626 | Magnetic bubble memory device An improved magnetic bubble memory device includes a continuous propagator overlay on a sheet of magnetic material. The propagator overlay being adapted to reduce the statistical switching effects and overall coercivity of the propagator overlay. The prop... | 04/03/1990 |
| 4698786 | Magnetic bubble memory device A magnetic bubble memory device comprises a bubble propagation path defined by a wide-gap pattern. This bubble propagation pattern has a geometry which is favorable for gaining an increase in density and which can provide a high propagation characteristic... | 10/06/1987 |
| 4625297 | Magnetic-bubble memory device A magnetic-bubble memory device having a bubble propagation track, defined by patterns of magnetically soft material, along which magnetic bubbles propagate in response to an in-plane rotating magnetic drive field. The bubble propagation track has a first... | 11/25/1986 |
| 4607349 | Magnetic bubble memory device A highly density magnetic bubble memory device has bubble propagation paths having different pattern periods. The distance between a propagation path having shorter period and a magnetic film for holding magnetic bubbles is made smaller than that between ... | 08/19/1986 |
| 4597826 | Method for forming patterns A method is disclosed of forming a fine pattern on a substrate, in which an etching mask pattern is formed on a layer of material of a pattern to be formed, an overlying layer is deposited on the pattern material layer and the mask pattern, and thereafter... | 07/01/1986 |
| 4578775 | Magnetic bubble memory device A magnetic bubble memory device is disclosed which is equipped with a minor loop of a magnetic bubble propagation track formed by ion implantation and a major loop or major line of a magnetic bubble propagation track consisting of a soft magnetic film and... | 03/25/1986 |
| 4486858 | Magnetic-bubble memory device A magnetic-bubble memory device comprising a bubble propagation path defined by patterns of magnetically soft material, along which magnetic bubbles propagate in response to an in-plane rotating magnetic drive field. The bubble propagation path has a firs... | 12/04/1984 |
| 4378410 | Compliant glass for solid state devices A solid state device including glass containing SiO2, consisting essentially of the composition, in percent by weight, in the range of:... | 03/29/1983 |
| 4358830 | Bubble memory with enhanced bit density storage area A field-access bubble memory chip has a plurality of permalloy elements overlying an insulating layer. The permalloy elements are configured and positioned to define a plurality of paths for propagating magnetic bubbles under the influence of a Z bias mag... | 11/09/1982 |
| 4358339 | Method of fabrication of bubble domain device structures A method of fabricating a microelectronic circuit device on a substrate by forming a layer of electrically and thermally conductive material (13) on a surface of a substrate (10). Channels are then etched in the layer of conductive material (13) to form p... | 11/09/1982 |
| 4357682 | Conductorless transfer for magnetic bubble memories A conductorless transfer is provided for a large-gap tolerant Permalloy pattern for moving magnetic bubbles. The transfer capitalizes on the symmetry of the elements for enabling a field reversal to achieve transfer.... | 11/02/1982 |
| 4355373 | Magnetic bubble memory A new geometry for the propagation elements of a field-access magnetic bubble memory is disclosed which is tolerant of relatively wide gaps between elements and lower drive fields. The elements have shapes which define bubble "traps" operative to hold bub... | 10/19/1982 |
| 4344153 | Magnetic bubble memory device and method of fabricating the same A magnetic bubble memory device and a method of fabricating the device are disclosed in which a conductor pattern lies at least between a film for maintaining magnetic bubbles therein, and a soft magnetic material pattern. Further, the magnetic bubble mem... | 08/10/1982 |
| 4340942 | Permalloy-first bubble switch A permalloy-first bubble switch has two curved propagation elements positioned on a layer of bubble domain supporting material. A curved conductor is superimposed on top of the propagation elements so that a current passing through the conductor element p... | 07/20/1982 |
| 4339305 | Planar circuit fabrication by plating and liftoff The method of manufacturing predetermined microcircuit conductor patterns, which includes forming on the surface plane of a substrate a layer of insulator material, forming a layer of resist on the layer of insulator material, patterning the layer of resi... | 07/13/1982 |
| 4335162 | Method of producing a fault transparent bubble memory by diffusing manganese in preselected permalloy elements A bubble memory includes a garnet film and a pattern of overlying propagation elements, each made of a layer of permalloy and a layer of manganese. The elements define a plurality of paths for propagating magnetic bubble domains under the influence of a Z... | 06/15/1982 |
| 4308592 | Patterned kill of magnetoresistive layer in bubble domain chip A technique and structure is described in which bubble domain devices can be made, and particularly bubble domain devices comprisng contiguous propagation elements. A thin magnetoresistive layer, such as permalloy, is blanket deposited over a substrate in... | 12/29/1981 |
| 4305137 | Planar magnetic bubble device The basic elements of a magnetic bubble device are laminated. A spacer conductor pattern layer is formed on the same plane as a control conductor pattern layer interposed between a magnetic film which forms and holds magnetic bubbles and a propagation cir... | 12/08/1981 |
| 4302822 | Thin-film magnetic bubble domain detection device and process for manufacturing the same A thin-film bubble domain detection device for use in a magnetic bubble memory comprises two metallic conductor leads formed with sloped opposing edges on the SiO2 spacer layer of a garnet substrate and a permalloy magnetoresistive sensing elem... | 11/24/1981 |
| 4301517 | Replicate/transfer bubble domain switch An active replicate/transfer magnetic bubble domain switch which is especially compatible with gap tolerant structures is provided. The switch includes a broadfaced corner element of relatively massive structure which retains the bubble domain for more th... | 11/17/1981 |
| 4299680 | Method of fabricating magnetic bubble memory device having planar overlay pattern of magnetically soft material Method of fabricating a magnetic bubble memory device in which the magnetizable upper overlay pattern of magnetically soft material, e.g. permalloy, defining bubble propagation elements and bubble function-determining components as located above a bubble-... | 11/10/1981 |
| 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 of an underlying pattern of conducting elements. This str... | 07/21/1981 |
| 4276613 | Close-packed bubble propagation device A close-packed magnetic bubble propagation device includes a pattern having a plurality of propagation elements positioned in at least four adjacent rows. These elements are spaced to provide a period or spacing of bubbles in these rows of less than three... | 06/30/1981 |
| 4271485 | Bubble domain storage using improved transfer switch A magnetic bubble domain storage device comprising a plurality of storage shift registers and at least one major shift register, which serves to provide bubble domains to the storage register and to receive bubble domains from the storage registers. A nov... | 06/02/1981 |
| 4263662 | Guard rail for contiguous element bubble chips Guard rails are described for particular use with magnetic bubble domain chips using contiguous propagation elements. These guard rails generally surround the active device area (storage area) of the chip and are used to move stray bubble domains from the... | 04/21/1981 |
| 4261045 | Magnetic bubble Y-bar corner A magnetic bubble Y-bar corner for use at the end of a minor loop. The Y-bar corner includes a Y-bar corner element and a canted I-bar positioned between the Y-bar corner element and each of the two adjacent storage elements in the minor loop. The ends of... | 04/07/1981 |
| 4251319 | Bubble memory chip and method for manufacture A bubble memory chip is manufactured using the following processing steps: a first dielectric insulation layer is deposited on the epitaxial garnet substrate, next, a comparatively thicker layer of a second dielectric insulator is deposited on the surface of t... | 02/17/1981 |
| 4233670 | Fault transparent magnetic bubble memory The disclosed fault transparent bubble memory has a plurality of minor loops for storing magnetic bubbles, a serial-parallel input path for writing bubbles into the minor loops, and a parallel-serial output path for reading bubbles from the minor loops. B... | 11/11/1980 |
| 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 structure with magnetically operating elements for driving the ma... | 10/21/1980 |
| 4187553 | Pedestal bubble domain chip and processes for making same An improved magnetic bubble domain chip and processes for making the chip are described. The chip is comprised of a magnetic bubble domain film in which small bubble domains can be moved, and overlying layers of metallurgy. The layer of metallurgy closest... | 02/05/1980 |
| 4178635 | 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 of an underlying pattern of conducting elements. This str... | 12/11/1979 |
| 4175289 | Serrated Y-bar magnetic bubble switch A magnetic bubble switch operates in a drive-to-transfer mode when a rotating magnetic field is applied. The switch has a magnetic element in the shape that defines the letter "Y" having two arms and a stem. The switch has at least one serration on the ar... | 11/20/1979 |
| 4174540 | Bubble domain transfer switches These improved current controlled transfer switches are particularly useful for changing the propagation path of very small bubble domains without requiring large amounts of transfer current. The underlying principle is that the transfer operation occurs ... | 11/13/1979 |
| 4174538 | Two-dimensional bubble domain memory A two-dimensional storage system having two dimensional access is described which offers advantages of speed and effective utilization of available storage area. The system is comprised of a plurality of bubble domain storage arrays, each of which has mea... | 11/13/1979 |
| 4172758 | Magnetic bubble domain device fabrication technique A process for fabricating magnetic bubble domain devices having multiple layers. The process is a single high resolution mask process. A magnetizable layer, a conductive layer and at least one dielectric spacer layer are provided on a suitable magnetic bu... | 10/30/1979 |
| 4167790 | Magnetic bubble domain gate arrangement In a gate arrangement, an information input bubble is deflected from an input path into an output path when moving in proximity of a control bubble on a control path in the interaction zone. T- and I-shaped permalloy elements of the control path pattern a... | 09/11/1979 |
| 4156935 | Block replicate magnetic bubble memory circuit for high speed data readout 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... | 05/29/1979 |
