Abstract: In a computer tomography apparatus having an annularly guided electron beam, has an x-ray source with an annular anode. Before the beginning of a scan event, the electron beam travels through the x-ray source concentrically relative to the annular anode until it is incident on a beam catcher at the closed end of the x-ray source. Proceeding from the end of the x-ray source at which the beam catcher is disposed, the electron beam is focused on, and scans, the annular anode. A constant focus size of the electron beam on the annular anode is thereby achieved.

Abstract: A suction table which, in a machine converting sheets into package, transfers the last, lowermost sheet of a batch to a subsequent processing station. The table is provided with numerous blowing and sucking nozzles and is fitted on a hollow frame movable with regard to a fixed distributory housing which provides sucking and blowing action. The housing comprises a distributory shaft and tubes movable with respect to the table and thereby sliding within corresponding guides formed in the frame. The shaft and tubes are provided with cooperating ducts which will allow the nozzles to suck or blow as required by the angular position of the distributory shaft and the position of the table.

Abstract: The formation of a gap in a magnetic head core or the junction of a thin magnetic film of a metal with an oxide substrate of a magnetic head made of a composite of a thin magnetic film of a metal with an oxide material are conducted by the thermal diffusion between gold layers themselves at a low temperature. Then, chromium or titanium is provided between the gold layer and the junction surface to prevent deterioration of magnetic characteristics and generation of a false gap and, at the same time, to heighten the junction strength. The thermal diffusion between the gold layers themselves is effected at a temperature lower than that of glass fusion to suppress the deterioration of magnetic characteristics, distortion caused by thermal expansion, and diffusion reaction on the interface. The chromium or titanium layer works to maintain function strength between the thin magnetic layer or the oxide substrate and the gold layer.

Abstract: A method, in the form of a pulse sequence for operating a magnetic resonance imaging tomography apparatus according to a modification of the echo planar method includes the generation of a read-out gradient consisting of sub-pulses having reversing polarity, the read-out gradient being activated in each scan after an RF excitation. A phase coding gradient, also consisting of a number of sub-pulses, is activated at each polarity change of the read-out gradient. The sub-pulses of the phase coding gradient have a polarity which alternates from sub-pulse to sub-pulse, and an amplitude-time area which increases in steps. An improved signal-to-noise ratio is achieved with this pulse sequence and N/2 ghosts are avoided.

Abstract: An improved method of serging a trouser-fly piece on a serging machine having a trimming cutter is disclosed wherein a continuous trouser-fly blank assembly is fed intermittently into a first feed path extending toward the serging unit at a predetermined angle relative to a path of movement of the trouser-fly piece being advanced by the serging unit. Then the continuous trouser-fly blank assembly is cut into a succession of elongate rectangular trouser-fly pieces each of which is subsequently advanced toward the serging unit along the first feed path. Thereafter, at least a corner of a leading end of the trouser-fly piece is trimmed by the trimming cutter and, substantially at the same time, one curved longitudinal edge of the trouser-fly piece including the trimmed corner is serged with a serge stitching.

Abstract: A method for manufacture of a bulk-type magnetic head capable of performing a frame recording operation. In sequential steps, coil grooves and track-width limit grooves substantially orthogonal thereto are formed in respective butt surfaces of a pair of magnetic core blocks, and then head-element division slits are formed between the track-width limit grooves. Subsequently the magnetic core blocks are joined to be integral with each other, and notches are formed in the core blocks in such a manner as to extend from lateral surfaces of the core blocks on the reverse side with respect to the butt surfaces thereof and to reach at least the coil grooves adjacently to the head-element division slits, whereby the in-line precision of magnetic gaps can be enhanced and high productivity is attained in manufacture of the magnetic head.

Abstract: A digital signal reproducing apparatus wherein an analog signal corresponding to stored digital data is processed to generate a digital data signal including an analog-to-digital converter operative to convert the analog signal to a digital signal, a decoder to decode the digital signal, and a memory interposed between the analog-to-digital converter and digital decoder to remove time base components from the digital signal. The analog signal is converted to the digital signal and the digital signal is read into the memory at a first clock rate. The digital signal is read out from the memory and subsequently decoded at a second clock rate.

Abstract: A trackball system is provided wherein a roller ball is received and supported within a ball retaining assembly. A vertical height of the ball is adjusted relative to the housing by adjusting a vertical height of the ball assembly relative to the housing. By changing vertical height of the ball relative to a top surface of the housing having an aperture through which the ball protrudes, a selectable portion of the ball will protrude through the aperture. Thus, an operator may make height adjustments of the ball relative to the top housing surface to suit his individual preference.

Abstract: A semiconductor device comprises a semiconductor substrate provided with a collector region a base region and an emitter region in a lateral arrangement. Respective portions having peak impurity concentrations of the collector region and the emitter region are formed within the semiconductor substrate. A method of fabricating a semiconductor device comprises a step of forming a collector region of a second conduction type and an emitter region of a second conduction type in a lateral arrangement in a semiconductor substrate serving as a base region of a first conduction type by using a first mask provided with a pair of openings, and a step of forming heavily doped regions of the second conduction type so as to be connected respectively to the collector region and the emitter region by using a second mask provided with a pair of openings separated from each other by a distance greater than the distance between the openings of the first mask.

Abstract: An IC lead inspecting apparatus and a method of using such apparatus to measure any pitch deviation or coplanarity error of each IC lead. The apparatus comprises at least a displacement sensor for irradiating inspection light onto both an IC setting table and leads of an IC placed on the table so as to be inspected, and detecting the reflected light therefrom to measure the heights of the leads; and scanning means for moving the displacement sensor and the IC setting table relative to each other and scanning the lead array of the IC by the inspection light, wherein reference marks are formed on a scanning line of the inspection light on the IC setting table, and a surface portion of the table is composed of a transparent material. The pitch deviation of each lead is measured on the basis of a timing change in the output signal of the displacement sensor. And the upward or downward coplanarity error of each lead is measured from a level change in the output signal of the sensor.

Abstract: The optical waveguide (AD) has a substantially rectangular internal opening in the form of a chamber (CA) for accepting the optical fibers arranged in the form of ribbon conductors (BL1-BLn). The optical fibers (AD) (sic) has a preferred bending plane (BP), the ribbon conductors being arranged with their broad sides substantially parallel to this preferred bending plane (BP), and the ribbon conductors (BL1-BLn) being guided in an undulating fashion such that their excursion extends transverse to the preferred bending plane.

Abstract: A rod casing for activating vertically arranged latch bolts, the casing and latch bolts arranged in an active stile of a door and engageable to a door frame. The rod casing provides a vertically slidable actuator cam engageable by both a lock/unlock actuator and a delatch or dogging actuator. The lock/unlock actuator and the delatch actuator are rotatably mounted upon a spindle piece which itself is rotatable by a user such as by a key-activated lock cylinder. The lock-unlock actuator when rotated, slidingly abuts the actuator cam and drives the actuator cam vertically upward to cause unlatching of the latch bolts. The delatch actuator, upon rotation of the spindle piece in an opposite direction underlies the actuator cam and dogs the actuator cam in its vertically risen position.

Abstract: Disclosed herein is a display composition which comprises a dye and a clay mineral in which quaternary ammonium ions are bound between layers through ion exchange, said display composition undergoing reversible color development and color fading through the oxidation and reduction of said dye, the oxidation causing said dye to form a color and to be bound between the layers of said clay mineral through ion exchange with said quaternary ammonium ions, the reduction causing the dye to discolor and to be desorbed out of the interlaminar space of the clay mineral and also causing the quaternary ammonium ions to be bound again between the layers through ion exchange. Disclosed also herein are a coloring pigment and recording material which employ the display composition.

Abstract: A reactive ion etching method is described in which a silicon compound film formed on an underlying layer or a substrate is etched through a mask layer by a two-stage procedure. In the two-stage procedure, part of the silicon compound film is first etched with a gas containing a hydrogen-free carbon fluoride gas at a high etching rated and then with a gas containing a hydrogen-containing carbon fluoride gas while reducing the damage on the underlying layer or substrate. The apparatus for carrying out the method is also disclosed.

Abstract: A medical device interacting with the body of a patient for stimulating and/or monitoring a physiological function includes control electronics which uses a parameter set which can be fetched from a memory, the parameter set defining the interaction. A number of different parameter sets can be stored in the memory, with a switching system being provided to fetch respectively different parameter sets under differing conditions.

Abstract: In a backplane wiring system, individual plug devices are firmly connected to assembly PC boards, and are both capacitatively as well as inductively decoupled from one another by rectangular, metallic shielding housings open at one side which are slipped onto contact blades of the wiring backplane.

Abstract: Molten resin is ejected from the gate provided in the wall of a mold, which corresponds to the face of the head insertion opening of a disk cartridge, so that the molded half of the disk cartridge has scarcely any defect in the surface thereof.

Abstract: A semiconductor memory comprising a memory cell comprising a MOS transistor connected between a bit line and a reference potential terminal; a sense amplifier coupled to the bit line for reading out a potential on the bit line, the sense amplifier comprising an inverter having an input and output connected to each other via a switch; and a circuit element interposed between the bit line and the sense amplifier operative to only transmit bit line potential changes in a direction of the reference potential.

Abstract: Although known circuit arrangements in NTL technology work just as fast as gates constructed in ECL technology, they have a transmission characteristic that is hardly useful in practice. In the NTL technology of the present disclosure, a transmission characteristic of the gates executed in NTL technology is modified by inserting MOS transistors such that they satisfy respective requirements of a logic circuit arrangement, even in combination with other logic circuit families.

Abstract: In order to rapidly reduce the magnetic energy of an inductive load (2), the driving voltage must be high. When the load (2) is disconnected via a MOSFET (3), then a premature activation of the MOSFET (3) given reversal of the voltage at the inductive load (2) must be prevented. A series circuit of a Zener diode and of a controllable switch (3) is connected between the gate and the load (2). A current source (depletion MOSFET 5) whose current is lower than the current that would flow upon Zener breakdown is connected between the gate and the source of the power MOSFET (1). The MOSFET (3) becomes conductive upon Zener breakdown and the energy is quickly reduced by a high voltage, essentially by the Zener voltage.