A control unit for a magnetic tape subsystem of a data processing system includes a maintenance facility. This maintenance facility permits the exercise of the magnetic tape subsystem for diagnostic and maintenance purposes. The control unit is of the microprogram type, in which a control memory contains micro orders which control the operation of the magnetic tape units. The maintenance facility exercises the tape subsystem in two different manners--with the Input/Output command language of the...

A control unit for a magnetic tape subsystem of a data processing system includes a maintenance facility. This maintenance facility permits the exercise of the magnetic tape subsystem for diagnostic and maintenance purposes. The control unit is of the microprogram type, in which a control memory contains micro orders which control the operation of the magnetic tape units. The maintenance facility exercises the tape subsystem in two different manners--with the Input/Output command language of the...

An energy absorber including a yoke on a vehicle body pivotable about a lateral centerline thereof, a linear bore in the yoke surrounding a steering column mast jacket, a ball sleeve between the mast jacket and the linear bore, a plurality of steel spheres interference fitted between the mast jacket and the linear bore and loosely received in apertures in the ball sleeve, and an annular lip on the yoke. The interference fit of the steel spheres yields a rigid, lash-free connection between the ve...

A semiconductor device characterized by a field limiting ring formed by a number of field limiting cells that define wells which are laterally diffused to form a continuous equipotential ring between interior and exterior regions of a semiconductor device. A number of active cells are formed in the interior region, and are therefore delineated from the exterior region of the device. Each of these active cells is a transistor, and preferably a field-effect transistor, whose structure is essential...

The steering column tilt assembly has a tilt housing that is pivotally attached to a fixed housing. A fixed shoe is attached to the fixed housing. A pivoted shoe is pivotally attached to the tilt housing. A shoe release lever has a wedge surface that holds the pivoted shoe in engagement with a fixed shoe when in a locked position. The shoe release lever has two trunions that are received in bores in the tilt housing. A release lever slot between the bores receive the pivot end shank portion. An ...

A method for assembling a gas turbine engine is provided. The method comprises coupling a first turbine nozzle within the engine, coupling a second turbine nozzle circumferentially adjacent the first turbine nozzle such that a gap is defined between the first and second turbine nozzles and providing at least one spline seal including a substantially planar body. The method also comprises forming at least one retainer tab to extend outward from the body portion of the at least one spline seal, an...

A method for monitoring the operating temperature of a semiconductor device. The method comprising the steps of: placing a thermal coupling material between the bottom of the semiconductor device and the top of a printed circuit board for inserting the device thereinto; inserting a sensor so to be at least partially covered by the thermal coupling material; and measuring the temperature from the sensor within a predetermined time interval. In accordance with another aspect of the invention, an a...

Systems and methods for controlling access to data on a computer with a secure boot process can provide a highly efficient mechanism for preventing future access to encrypted digital resources. This may be advantageous in a range of scenarios, for example where a computer is sold and assurance is desired that no stray private data remains on the hard disk. Data resources, for example all data associated with one or more particular hard disk partitions, may be encrypted. The decryption key may be...

Single-layer and multilayer imageable elements have a substrate and at least one imageable layer and can be used to prepare positive-working lithographic printing plates. The imageable elements also include a radiation absorbing compound and a solvent-resistant polymer binder comprising an --N(R)--C(.dbd.X)--N(R')--S(.dbd.O).sub.2-- moiety that is attached to the polymer backbone, wherein X is O or S, R and R' are independently hydrogen, halo, or an alkyl group having 1 to 6 carbon atoms. This s...

Systems and methods are provided for maintaining and updating a secure boot process on a computer with a trusted platform module (TPM). A boot process may be maintained by inspecting a log of TPM activity, determining data that prevented a secret to unseal, and returning the data to an original state. In situations where this type of recovery is not workable, techniques for authenticating a user may be used, allowing the authenticated user to bypass the security features of the boot process and ...