Abstract: A leader for use with a tape reel including a first end, a second end spaced from the first end, and an elongated section extending between the first end and the second end. The second end has a connection feature configured to be selectively coupled with a second leader. The elongated section defines a smoothing indenture that does not extend through the thickness of the leader. The smoothing indenture is positioned to receive the connection feature as the leader tape is wound about a tape reel and is configured to limit embossment of a storage tape otherwise associated with the leader in the wound state.

Abstract: A data storage tape cartridge (10) includes two tape guides (23, 24). The tapes guides (23, 24) have a foil (43, 143, 243) which is constructed from material which causes a wear pattern (200) to be formed in the foil (43), thereby removing localized forces and spreading out the forces and thereby decreasing the tape pressure.

Abstract: An intensifier pump system includes a supply pump for delivering fluid products at an intermediate pressure. The products are delivered to one or more intensifier pumps that take advantage of hydraulic intensification to expel the product at high pressures to assure continuous product deployment in various systems. After an extension cycle in one of the intensifier pumps, product is delivered from the supply pump at a pressure sufficient to retract the intensifier pump and fill the chamber with fluid.

Abstract: A system for increasing areal recording density in linear magnetic recording systems employs a continuous servo track and an azimuth recording technique. The system comprises multiple motors that displace parallel read/write heads at supplementary angles to the servo track when the head is positioned over adjacent data tracks. The resultant tracks may be very closely spaced together without loss of accurate tracking.

Abstract: A magnetic tape recording system employing a single bump read-while-write head, methods of minimizing crossfeed signals between the read and write channels of magnetic tape recording systems, and electronic circuitry to implement such methods.

Abstract: A servo track configuration includes at least one servo track having a width. A servo pattern is repeatedly recorded in the at least one servo track. Repeatedly recording the servo pattern includes repeating the simultaneous recording of first and second reference pattern lines and a track pattern line in the at least one servo track. Each of the first and second reference pattern lines has an identical predetermined geometry and extends across the width of the at least one servo track. Further, the track pattern line has a predetermined geometry that is different than the predetermined geometry of the first and second reference pattern lines and extends across the width of the at least one servo track.

Abstract: The invention presents the concept of self-referenced holographic data recording. In exemplary embodiments, the invention comprises methods of recording holograms on holographic data storage media; media produced by such methods; and self-referencing holographic data storage systems. A method of recording data in a holographic recording medium may comprise illuminating a medium with a data encoded first optical beam, optically directing a zero frequency Fourier component of the first optical beam to create a second optical beam, and illuminating the medium with the second optical. In some embodiments, for example, a self-referencing holographic data storage system has a single optical path directed towards a medium.

Abstract: A method and system for presenting targeted advertising during an Internet-based connection, such as a web-based data backup session in which data is communicated from a user computer to a remote storage area for archival via the Internet. According to the invention, the user computer is communicatively coupled to the server via a computer network and an asset profile for the computer is generated. The asset profile identifies the software applications that are currently loaded on the computer and the current hardware configuration for the computer including a processor type and connected hardware devices. In addition, the asset profile contains usage information such as a frequency of use for the various software applications. As a function of the uploaded asset profile, advertisements are selected from an advertisement database and are communicated to the computer for display to the user.

Abstract: A system, such as a gap drying system, moves a substrate having a substrate tension over a curved plate at a substrate speed such that the substrate floats over at least a region of substantially constant clearance (H0) between the substrate and the curved plate. H0 is controlled without adjusting the substrate speed and without adjusting the substrate tension.

Abstract: A data storage disk cartridge including a shutter assembly with a stress relief mechanism. The disk cartridge includes a housing assembly having an opening for accessing a disk. A molded shutter assembly is operably connected to the housing assembly. The molded shutter assembly is moveable between a closed position across the opening and an open position allowing access to the disk by a disk drive. The molded shutter assembly includes a first sidewall, a second sidewall, and an endwall extending between the first sidewall and the second sidewall. A first joint is defined by the junction of the first sidewall and the endwall. A stress relief mechanism is positioned at the first joint whereby the first sidewall is maintained substantially parallel to the second sidewall after removal from a molding process die assembly.

Abstract: A data storage cartridge (10) includes a housing (12) having a first section (13) and a second section (14) operatively connected to each other. A first positioning member (40) and second positioning member (50) are operatively connected to the housing and are in axial alignment with each other. A leader pin (30) is positioned in the positioning members 40, 50 and held in position by the two-sided springs 44. The springs 44 are in position around a locating member 41, 51.

Abstract: Optical servo systems and magnetic data storage tape for use with magnetic data storage drives. The servo system utilizes a head mechanism that includes an optical head and a magnetic head. The optical head is adapted to detect a series of optical indicator marks located on a servo track on the tape. The magnetic head is adapted to detect one or a series of magnetic reference indicator marks located on a corresponding data track. The magnetic reference indicator marks are, in one embodiment, spaced periodically along the length of the tape. The magnetic reference indicator marks allow recalibration of the optical servo system by permitting the determination of any dimensional offset between the optical head and the magnetic head attributable to manufacturing tolerances or environmental factors. In one embodiment, a separate temperature sensor may be used to determine thermal changes in and around the head mechanism.

Abstract: A method is provided for coating one or more fluid layers on a substrate to form magnetic recording media such as magnetic tape and diskettes. The method takes advantage of fluid coating formulations having a particular rheology that enables the coating of one or more magnetic layers with reduced thicknesses while achieving increased coating speeds. With proper rheology, one or more layers can be coated on a substrate traveling at increased speeds while maintaining desired coating thicknesses.

Abstract: A tape reel assembly for use with a data storage tape cartridge. The data storage tape cartridge includes a housing, a tape reel pin, the tape reel assembly, and a storage tape. The tape reel assembly is rotatably associated with the tape reel pin and includes a hub, a spherical piece and a sleeve. The spherical piece is insert molded within an axial bore of the hub and provides a thrust surface. The sleeve is also insert molded within the axial bore of the hub and provides a journal bearing surface. In accordance with a method of the present invention, the tape reel assembly is formed as part of an injection molding process, whereby a core pin precisely positions the spherical piece and co-axially centers the sleeve relative to an outer, tape winding surface of the hub.

Abstract: A data storage tape cartridge has a housing (12) and a tape reel assembly (14) rotatably mounted in the housing (12). An unlocking member (170) is constructed from a filled thermoplastic and a wear member (185) is operatively connected to the unlocking member (170) forming a wear surface.

Abstract: Systems and methods for prevention of condensation of ambient water vapor due to evaporation of frozen carbon dioxide particles used to clean data storage tapes. Various embodiments maintain conditions under which condensation cannot form in the ambient environment immediately surrounding a portion of a rigid surface on which the tape is maintained in thermodynamic contact and under tension (e.g., a metallic capstan around which the tape is wrapped).

Abstract: A tape reel assembly (14). The tape reel assembly (14) includes three discrete components. The components include a top flange (40), bottom flange (50) and hub (60). Teeth (65) are operatively connected to the hub (65). The flanges (40, 50) are preferably made from metal.

Abstract: The invention presents a magnetic recording disc cartridge with two small fabric liners affixed inside the media compartment. One liner covers the lifter and the other covers the raised structure. The lifter and the raised structure bring the liners in contact with the flexible surface of the disc as it rotates, thus cleaning the disc. One or more protrusions in the media compartment prevent the disc from abrading the surface of the media compartment.

Abstract: A data storage cartridge (10) includes a switch (50). The switch (50) has a handle (56) that extends through an opening (30) and the switch (50) has a sensor member (55) which extends in a second opening (40). The switch (50) is held in position with a spring positioning post pin (42).

Abstract: A mass transfer imaging element comprising a substrate having a surface colorant layer containing a pigment to be imagewise transferred, wherein said colorant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.