Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.

Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.

Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.

Abstract: Embodiments of the present invention are directed to the design and implementation of backward-compatible magnetic tape drives (102) that are read/write compatible with a current magnetic-tape format (1820) as well as one or more previous magnetic-tape formats (1802 and 1804). Embodiments of the present invention include read/write tape-head configurations (1902, 1904, 1906, 1908-1923, 1930, 1932, 1934, 2102) and corresponding magnetic-tape-drive-component features (518) that allow a magnetic-tape drive to read and write magnetic tapes formatted according to different formats.

Abstract: Methods and apparatus are provided related to magnetic recording tape. Respective voltage sources are coupled to respective magnetic head components of a tape recording apparatus. Circuitry controls each voltage source independently in accordance with identity information for a magnetic tape, relative humidity within the tape recording apparatus, or other factors. Chemical migration from the tape, and/or plating or erosion of elements of the tape recording apparatus are substantially reduced or eliminated according to the present teachings.

Abstract: Methods and apparatus are provided related to magnetic recording tape. Respective voltage sources are coupled to respective magnetic head components of a tape recording apparatus. Circuitry controls each voltage source independently in accordance with identity information for a magnetic tape, relative humidity within the tape recording apparatus, or other factors. Chemical migration from the tape, and/or plating or erosion of elements of the tape recording apparatus are substantially reduced or eliminated according to the present teachings.

Abstract: An airplane ground support system includes a multi-voltage power supply. A control system within the power conversion module receives measurements to regulate the power module's output to a predetermined preset voltage level as mandated by the power output selection signal. In an alternate embodiment a multi-voltage or upgradable power supply has A.C. and D.C. capability, A.C. only capability with an upgrade kit available to add D.C. capability in addition to the A.C. capability, D.C. only capability with an upgrade kit available to add A.C. capability in addition to the D.C. capability.

Abstract: An air delivery hose assembly for use with aircraft ground support equipment provides conditioned air to an on-ground aircraft. The hose assembly includes an impermeable inner liner which forms an air conduit, a stress layer comprising a web of cord material which surrounds the inner liner, and an insulating layer which surrounds the inner liner and the stress layer to thermally insulate air passing through the air hose. The stress layer prevents air pressure in the conduit from expanding the inner liner and compressing the insulating layer, and thereby reducing the effectiveness of the insulating layer.

Abstract: A flexible circuit having a first end attached to a clamping mechanism and a second end attached to a carriage to move, a magnetic head to read a tape. The clamping mechanism has a curved surface to allow the flexible circuit to maintain an S-shape when the magnetic head moves with respect to the magnetic tape.

Abstract: An airplane ground support system includes a multi-voltage power supply. A control system within the power conversion module receives measurements to regulate the power module's output to a predetermined preset voltage level as mandated by the power output selection signal. In an alternate embodiment a multi-voltage or upgradable power supply has A.C. and D.C. capability, A.C. only capability with an upgrade kit available to add D.C. capability in addition to the A.C. capability, D.C. only capability with an upgrade kit available to add A.C. capability in addition to the D.C. capability.

Abstract: Various embodiments are disclosed for a flexible circuit. In one embodiment, the flexible circuit bends on a curved surface to form a partial loop.

Abstract: Various embodiments are disclosed for a flexible circuit. In one embodiment, the flexible circuit bends on a curved surface to form a partial loop.

Abstract: Embodiments of the present invention are directed to the design and implementation of backward-compatible magnetic tape drives (102) that are read/write compatible with a current magnetic-tape format (1820) as well as one or more previous magnetic-tape formats (1802 and 1804). Embodiments of the present invention include read/write tape-head configurations (1902, 1904, 1906, 1908-1923, 1930, 1932, 1934, 2102) and corresponding magnetic-tape-drive-component features (518) that allow a magnetic-tape drive to read and write magnetic tapes formatted according to different formats.

Abstract: A tape back-up drive having a head assembly. The head assembly includes a head configured to read data from a tape and to write data to the tape. The head assembly also includes at least one tape guide disposed adjacent to the head.

Abstract: Various embodiments are disclosed for a flexible circuit. In one embodiment, the flexible circuit bends on a curved surface to form a partial loop.

Abstract: A tape back-up drive having a head assembly. The head assembly includes a head configured to read data from a tape and to write data to the tape. The head assembly also includes at least one tape guide disposed adjacent to the head.

Abstract: In one embodiment, a magnetic media write signal filter includes a plurality of resistors connected in series across output signal lines of a write driver and a capacitor connected between a junction of resistors and a ground.

Abstract: An apparatus and method for electrically coupling read elements and write elements of a tape head assembly to another component includes an interconnect structure having plural layers of traces, with the traces comprising write traces electrically connected to respective write elements, and read traces electrically connected to respective read elements. The write traces and read traces are interleaved across a dimension of the interconnect structure.

Abstract: In one embodiment, a magnetic media write signal filter includes a plurality of resistors connected in series across output signal lines of a write driver and a capacitor connected between a junction of resistors and a ground.

Abstract: A tape head assembly comprises a transducer head having plural arrays of transducing elements, the transducing elements comprising at least one of write elements and read elements. The tape head assembly further comprises a set of conditioning elements, the conditioning elements comprising at least one of write drivers and read amplifiers. Multiplexing circuitry selectively couples the conditioning elements to one of the plural arrays of transducing elements.