Abstract: A method and apparatus for using thermal preconditioning to write data to a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM) memory cell. In some embodiments, a logical state is written to an unconditioned non-volatile first memory cell associated with a first block address. Thermal preconditioning is concurrently applied to a non-volatile second memory cell associated with a second block address selected in response to the first block address.

Abstract: Data storage systems are provided. Data storage systems illustratively include a recording head having a writing element and a bit patterned medium having a plurality of media dots. In some embodiments, the plurality of media dots pass the recording head at a media dot frequency. In some embodiments, the writing element writes data to the bit patterned media at a writing frequency that is less than the media dot frequency.

Abstract: A data storage system and associated method comprising system configuration information; a first processor adapted for identifying a portion of the system configuration information in response to a configuration change request to the memory space, and for signaling an update request incident with the configuration change request to a second processor; and a second processor adapted for updating the portion in response to the update request and independently of the first processor.

Abstract: Apparatus and associated method for asymmetric write current compensation for resistive sense memory (RSM) cells, such as but not limited to spin-torque transfer random access memory (STRAM) or resistive random access memory (RRAM) cells. In accordance with some embodiments, an RSM cell includes an RSM element coupled to a switching device. The switching device has a plurality of terminals. A control circuit compensates for asymmetric write characteristics of the RSM cell by limiting a range of voltage differentials across the terminals so as to be equal to or less than a magnitude of a source voltage applied to the switching device, thereby providing bi-directional write currents of substantially equal magnitude through the RSM element.

Abstract: A bidirectional memory array architecture for non-volatile memory is disclosed. In accordance with some embodiments, a plurality of memory cells are arranged into an M number of rows and an N number of columns with each memory cell having a resistive sense element (RSE) and a switching device. A total number of M+N+1 control lines extend adjacent to and are connected with the memory cells to facilitate bi-directional programming of resistive states to each memory cell.

Abstract: A process for assembling data storage components in which a cylindrically shaped first structure of a data storage device is inserted into an aperture of a second structure, the first structure having a circumferentially extending outer surface and the aperture of the second structure having an aperture sidewall. An annular gap is formed between the outer surface of the first structure and the inner sidewall of the aperture of the second structure, and a plurality of discrete dots of adhesive are placed to span the annular gap following which the adhesive is cured by exposing the adhesive to ultraviolet radiation to attaches the first and second structures into a sub-assembly.

Abstract: An apparatus and method for compensating for asymmetric write current in a non-volatile unit cell. The unit cell comprises a switching device and an asymmetric resistive sense element (RSE), such as an asymmetric resistive random access memory (RRAM) element or an asymmetric spin-torque transfer random access memory (STRAM) element. The RSE is physically oriented within the unit cell relative to the switching device such that a hard direction for programming the RSE is aligned with an easy direction of programming the unit cell, and an easy direction for programming the RSE is aligned with a hard direction for programming the unit cell.

Abstract: A frame supporting a containment chamber, the containment chamber is preferably configured to enclose and confine a process chamber. A heat source module is disposed between the containment chamber and the process chamber, while a thermal regulation cavity is maintained between the heat source module and the process chamber. Preferably, at least one fluid inlet box is in fluidic communication with the thermal regulation cavity, in which the fluid inlet box provides a plate valve that mitigates the flow of fluids from the thermal regulation cavity through the fluid inlet box and to an environment external to the thermal regulation cavity. Additionally, the preferred fluid inlet box further includes a flow adjustment structure interacting with the plate valve to control fluid flow from the environment external to the thermal regulation cavity past the plate valve and into thermal regulation cavity.

Abstract: Method and apparatus for using a uni-directional write current to store different logic states in a non-volatile memory cell, such as a modified STRAM cell. In some embodiments, the memory cell has an unpinned ferromagnetic reference layer adjacent a cladded conductor, a ferromagnetic storage layer and a tunneling barrier between the reference layer and the storage layer. Passage of a current along the cladded conductor induces a selected magnetic orientation in the reference layer, which is transferred through the tunneling barrier for storage by the storage layer. Further, the orientation of the applying step is provided by a cladding layer adjacent a conductor along which a current is passed and the current induces a magnetic field in the cladding layer of the selected magnetic orientation.

Abstract: A method and apparatus for reading data from a non-volatile memory cell. In some embodiments, a cross-point array of non-volatile memory cells is arranged into rows and columns. A selection circuit is provided that is capable of activating the first block of memory cells while deactivating the second block of memory cells. Further, a read circuit is provided that is capable of reading a logical state of a predetermined memory cell in the first block of memory cells with a reduced leak current by programming a first resistive state to the block selection elements corresponding to the first block of memory cells while programming a second resistive state to the block selection elements corresponding to the second block of memory cells.

Abstract: A standing seam roof assembly in which a male sidelap extends from one side edge of a panel and a female sidelap extends from the opposing side edge. The female sidelap, supporting a sealant bead, is shaped fit over the male sidelap. A clip member has a clip tab shaped to be seamed with the male and female sidelaps to connect the standing seam assembly in the assembled mode. The clip tab, having a clip inclined portion with at least one sealant flow hole, with the male and female sidelaps forms lower and upper sealant chambers along a clip tab, the sealant flow hole communicating between the upper sealant chamber and the lower sealant chamber to spread sealant to encapsulate the clip tab. The clip has a clip body slidably connected to a clip base having protruding bearing feet to penetrate and compress insulation when mounted to support structure.

Abstract: An aircraft including a wing and a pylon, wherein the pylon provides an airfoil inverted for an airfoil of the wing, and an improvement and method for improved flight dynamics for 20 and 30 Series LEARJET® is provided. The improvement includes an increased distance between a leading edge of a wing and an intake of an engine of the aircraft, which reduces drag and increases lift for improved flight dynamics of the aircraft. The inverted airfoil of the pylon negates an influence of the pylon on flight dynamics for improved overall flight dynamics of the aircraft. The method includes steps of removing an original engine from an original pylon, removing the original pylon from the fuselage of the aircraft, and mounting a new pylon in a new location adjacent to the fuselage, wherein the new location is aft of the original location.

Abstract: A data storage medium such as an optical disc with separate image and data tracks, and a method and apparatus for forming the same. The medium has a user data storage area with a data track to store user data, and a non-user data image track to store human readable information to form a watermark interspersed with the user data. Preferably, the data track forms a portion of a first spiral and the image track forms a portion of a distinct second spiral nested within the first spiral. Alternatively, the data and image tracks are nested concentric circles. An increased track pitch is preferably provided for the data tracks in the data storage area adjacent the watermark to accommodate the intervening image tracks, and a reduced track pitch between data tracks is provided elsewhere. The medium can be pre-recorded or recordable.

Abstract: A hermetic seal is provided for sealing a discrete opening in a disk drive base plate. The hermetic seal comprises a sealing gasket that is disposed between planar facing surfaces of a component inserted through the opening and a recess formed on the interior of the base plate. As the gasket is compressed, a deformable plating applied to the gasket deforms and flows to fill microscopic voids that may be found in the abutting planar surfaces. Required access to the disk drive through the opening may be made in a rework process without destroying the seal. To seal the opening of the drive again, the sealing gasket is simply recompressed between the planar abutting surfaces. The invention also comprises a method by which to seal the castings of the disk drive housing, to include the base plate and top cover the disk drive. The method generally includes a two-time resin impregnation process to fill exposed pores on the surface of the castings.

Abstract: Method and apparatus for operating a memory device with a status register. In some embodiments, the memory device has a plurality of individually programmable non-volatile memory cells comprised of at least a resistive sense memory. The memory device engages an interface and maintains a status register in some embodiments by logging at least an error or busy signal during data transfer operations.

Abstract: An improvement and method for improved structural dynamic stability for 20 and 30 Series Learjets are disclosed. The improvement includes a redistribution of the elevator mass balance to uncouple the elevator rotational motion from the stabilizer translation motion for the higher order horizontal frequencies having node lines in the proximity of the mass outboard counterbalance weights. The original tail section includes a rudder, and a horizontal stabilizer supporting an elevator mounted adjacent the rudder. The elevator includes a proximal end adjacent the rudder and a distal end that includes a counterbalance portion. The improvement includes replacement of an original mass counterbalance weight from within the counterbalance portion with a new mass counterbalance weight of less mass, and the inclusion of additional mass counterbalance weights disposed within the elevator and interposed between the proximal end and the counterbalance portion.

Abstract: An embolic protection device for use in medical, veterinary, non-medical or industrial applications where removal of an obstruction from a small diameter vessel or vessel-like structure could produce particles, which, if allowed to remain in the vessel, could cause undesirable complications and results. One embodiment comprises a catheter for insertion into a vessel and a trap operably connected to the catheter and to a rotatable member. Rotating the rotatable member relative to the catheter actuates the trap. One embodiment comprises a rotatable member that actuates a flexible strut between an arcuately expanded position and a helically twisted position, and a membrane operably connected to the flexible strut.

Abstract: A method for monitoring a gas leakage rate from a hermetically sealed device, such as a hermetically sealed data storage device with an interior helium atmosphere. In some embodiments, a diffusion rate of inert gas from a hermetically sealed first device is monitored until steady state diffusion is reached, and a standard time constant for the first device is identified. Next, the diffusion rate is monitored for a second sealed device for a portion of the time required for the first device to achieve steady state diffusion, and the time required for the second device to reach steady state diffusion using the standard time constant is calculated.