Abstract: A monolithically integrated two-dimensional image sensor having an array of sensor elements disposed in rows and columns connected by respective row and column lines. A first readout of the sensor elements is undertaken and a charge packet representing the signal is formed by an oppositely doped semiconductor region connected to the respective column lines which charge packet contains charge carriers generated as a result of incident radiation as well as noise signals. A second readout of the sensor elements is undertaken for a short duration so that the charge packet generated as a result of the second readout represents only noise signals.

Abstract: Polysilicon structures down to a 1 .mu.m range on substrates containing integrated semiconductor circuits are produced by plasma etching in a plate reactor with the use of SF.sub.6 and an inert gas as the reactive gas. During this process, a semiconductor crystal wafers (4, 17) covered with a SiO.sub.2 layer (16) and a polysilicon layer (15) is provided with an etch mask (14) and positioned on a grounded electrode of the plate reactor and an etching process, which achieves a high selectivity of polysilicon (15) to SiO.sub.2 (16) and to the etch mask (14), is carried out with a HF power, P, of <0.1 watt/cm.sup.2, a gas pressure, p, ranging from 60 to 120 Pa, and an electrode temperature ranging from 20.degree. to 60.degree. C. With the inventive process, large scale integrated semiconductor circuits are produced in a single stage sequence with high etching selectivity, uniform etching and a high throughput of silicon wafers.

Abstract: In an exemplary embodiment, a radiation detector for receiving the radiation emerging from the radiography subject delivers electrical output signals corresponding to the received radiation profile, generating a relative movement between the support device and the radiation beam, and with a measurand converter and a video unit for the formation of the X-ray shadow image. The radiation detector is an X-ray image intensifier with an outlet-connected television camera. A cancellation device is present which cancels the formation in the target region which is disposed immediately before the line image in the direction of movement of the line image, generated by the X-ray beam, on the target. The effect of the stray radiation on the image quality is thereby eliminated.

Abstract: In an exemplary embodiment, a command value signal is supplied to a magnetic deflection control loop which operates based on measurement of deflection coil current. A signal proportional to the rate of change of deflection magnetic field is supplied to one input of a differential amplifier, and a signal in accordance with the rate of change of the command value signal is connected with a second input of the differential amplifier. Any error between the rate of change signals as sensed by the differential amplifier is used as an auxiliary control of the deflection magnetic field, whereby eddy current influences are overcome. The system is particularly useful for precision control of an electron beam writer in the manufacture of semiconductor integrated circuits.

Abstract: The invention relates to a device for push-pull transmission of items of binary information, wherein in order to improve the ratio of the information which can be simultaneously transmitted to the number of lines in a line group comprising at least three lines, more than two different potentials are produced on the lines while maintaining a constant potential sum in the line groups. Two or more line groups can serve to form phantom circuits.

Abstract: A mechanical device for monitoring the supply of ink in an ink storage reservoir carried by the printing carriage of an ink printing device is situated at one end of the path of movement for the printing carriage. The ink reservoir is mounted on the printing carriage and contains a freely reciprocable tappet member having an upstanding stem extending through the housing cover of the ink reservoir which is freely movable up and down in accordance with the level of remaining ink supply. The mechanical monitoring device is operated dependent upon the vertical position of the tappet stem each time a printing operation is begun by virtue of movement of the printing carriage toward the monitoring device so that the relative position of the tappet member may be sensed by the device.

Abstract: A connecting device for a pair of light waveguide cables with each cable having an optical fiber which is loosely enclosed in a tubular sheath characterized by a joint between the ends of the pair of sheaths of the two cables being bridged by an appropriate tube which is fixed to the ends of the two sheaths and does not require any special housing such as bushing and the like. The tube may be an inner tube, which is inserted into the interiors of the pair of tubular sheaths being connected together or an outer tube which is fixed onto the tubular sheaths. In another embodiment, both an inner and outer tube are utilized. A length adjustment of the optical fiber within the pair of tubular sheaths can be carried out by virtue of a helical arrangement of the optical fiber and the bridging which is provided by the one or more tubes.

Abstract: A longitudinally divided cable sleeve which is composed of a shrinkable sleeve member of a shrinkable material having a bead on each edge for engagement with a sealing bar to form a sealing system characterized by each of the beads having a non-shrinkable longitudinally extending strengthening element embedded therein and the sealing bar having a pair of side elements interconnected by a central web, said side elements projecting from the central web to form an undercut groove on each side of said web so that the sealing bar is a cross-sectional configuration of a pair of C-shaped profiles facing in opposite directions and each groove receives one bead of the sleeve member to close said cable sleeve. The sealing bar is preferably made of a material having a good heat conduction property to improve the heating of the inner sealing zones during a shrinking process. If desired, a coating of a fusible adhesive can be applied in the area of the sealing zones to increase the sealing effect.

Abstract: A method of manufacturing a high permeability amorphous magnetic alloy is disclosed. In the method amorphous magnetic alloy ribbon prepared by quenching a melt of raw material is annealed at an elevated temperature lower than a crystallization temperature of the alloy, in a magnetic field. During the annealing, the alloy ribbon and the direction of the magnetic field are relatively rotated with each other. The method is especially useful to an amorphous magnetic alloy having high saturation magnetic induction where the magnetic Curie temperature of the alloy usually exceeds the crystallization temperature of the alloy.

Abstract: An electrical acoustical transducer is provided having a piezoelectrical layer in a housing with a transducer plate. The transducer plate divides the housing into a front chamber and a rear chamber. In the rear chamber, there is provided a Helmholtz resonator for the attenuation of resonance increases. With the invention a Helmholtz resonator is designed such that its acoustical characteristics do not change through environmental influences. Instead of covering the resonator by means of a customary silk disk, several narrow slots are arranged in the carrier plate.

Abstract: A mosaic ink recorder having a number of outlet nozzles in a nozzle plate for discharging ink droplets on a recording media has a screen with apertures therein which are disposed in groups in registry with the outlet nozzles, the apertures in the screen having a diameter which is substantially less than the diameter of the outlet nozzles. The apertures increase the pressure necessary to break the meniscus of the ink remaining in a channel after discharge of a droplet by a ratio approximately equal to the ratio of the diameter of the aperture to the diameter of the nozzle. The recording head is thus rendered substantially less sensitive to vibration and other disturbances which may otherwise break the meniscus and permit ink to flow in a channel at undesired times. The screen may be a separately attachable element or may be integrated with the body of the recording head.

Abstract: A dynamic read amplifier for MOS memories comprises a flip-flop which includes two first switching transistors whose low end can be applied to ground by way of a cut-through transistor in response to a first clock pulse and whose outputs are connected to data lines via cut-off transistors which are controlled by a second clock pulse, whereby the data lines can be charged to the supply voltage by way of a pair of charging transistors in response to a third clock pulse. Given such dynamic read amplifiers for semiconductor memories, the regeneration of a logic "1" level, for example, is possible after an evaluation operation without additional leakage power. Therefore, two additional switching transistors and two further charging transistors are provided, as well as two additional data lines, so that only the respective data line with the logic "1" signal is connected to the supply voltage.

Abstract: A piezoelectric drive element which surrounds an ink channel in a writing jet in a mosaic printing device is a winding formed by plies of thin synthetic foil having piezoelectric properties. The plies of the foil contact adjacent plies over large areas of adjacent plies and form a compression chamber in the interior of the winding which surrounds the ink chamber. Application of a voltage of a first polarity to the winding expands the winding and application of a voltage having an opposite polarity then contracts the winding forcing ink out of the chamber for printing. The winding and chamber may be surrounded by a covering of silicon rubber.

Abstract: A piezoelectric resonator plate capable of excitation to thickness shear vibrations is provided on each of its large surfaces with a respective excitation electrode and is provided, at least in partial regions of its border, a thickness decreasing in the direction of the border of the plate in the form of a beveling, whereby in the region of such a border beveling, respectively, a connection member contacts one of the excitation electrodes.

Abstract: A rubber or rubber/viscous torsional damper assembly of the type having an annular inertia mass mounted for relative torsional damping movement on an annular body portion of a rotor disk has elastic rings fixedly secured to the rotor body portion and pressing against a substantial radial width of axially inwardly facing surface area within a chamber in the inertia mass under preload compression. Annular ribs on the rings fits in annular grooves at the radially inner sides of the surface areas and substantially restrain the elastic rings against radially inward extrusion flow displacement, so that the preload compression is maintained radially outwardly relative to the ribs. Additional grooves adjacent to the radially outer sides of the surface areas receive complementary ribs on the rubber rings for controlling against radially outward rubber displacement in the viscous/rubber damper assemblies.

Abstract: A layer capacitor is disclosed having at least two oppositely polarized metallizations and an intervening dielectric layer consisting of a glow polymerization arranged on a substrate. During production these layers are laterally defined by only one diaphragm. In order to make as great a use of the substrate surface and a rectangular shape of the component as possible, neighboring layers are designed of equal area and are applied in parallel diagonally offset to the edges of the diaphragm aperture.

Abstract: Disclosed is a digital signal processing circuit, which can process digital data of at least two different data formats where one word consists of respectively of m and n bits (m and n being positive integers and m>n), for instance 16 and 14 bits, resides in that serial data of the data format where one word consists of m bits (for instance 16 bits) is rearranged into a form conforming to the data format where one word consists of n bits (for instance 14 bits) and that processing (for instance T matrix calculation) is effected according to a bit clock corresponding to the difference in the bit number between m and n, thereby obtaining data conforming to the data format where one word consists of n bits.

Abstract: A warp-knit stringer tape, for slide fasteners, including a pair of transversely non-stretchable longitudinal edge portions and a transversely stretchable intermediate portion extending therebetween. The stringer tape has a knit ground structure composed of chain stitches and tricot stitches. At the stretchable intermediate portion, the tricot stitches are formed of a plurality of elastic yarns such as stretch yarns, while the chain stitches are formed of a plurality of non-elastic yarns such as multifilament yarns. At least one elastic weft yarn is laid in the knit ground structure at the stretchable intermediate portion.

Abstract: A jacketed centrifuge for exchanging material between liquids, usually a heavier liquid containing suspended solids and a lighter liquid, including a housing in which there is a drum mounted for rotation, and a conveyor worm mounted for rotation coaxially therewith. Inlet and outlet means are provided for introducing a relatively light liquid into the drum, as well as introducing the heavier liquid containing the solids suspended therein. Many of the elements of novelty are centered around the discharge means which are used for discharging solids from the drum. Basically, the drum is enlarged radially in the vicinity of the discharge means and is provided with various types of devices for discharging the solids into the discharge zone in a controlled manner.

Abstract: A device for sealing plastic material bags having opposed jaw members movable between open and closed positions with one of the jaw members provided with a heat source and the opposed jaw member provided with a resilient jaw surface. One of the jaw members is stationary, the other jaw member is movable and is attached adjacent one end of a lever member pivoted intermediate its ends, the other end being associated with an electro-magnet with switch means for actuating the electro-magnet, the switch being actuated by manual movement of the movable jaw towards the stationary jaw. Activation of the switch controls electronic circuitry including timing means to actuate the electro-magnet to forcibly close the jaws and maintain them in a closed condition until interruption of power to the electro-magnet by a timing circuit. The movable jaw is normally biased away from the stationary jaw.