Abstract: A matrix comprised of pass transistor cells (81 through 96) forms an address decoder circuit (80). By using pass transistor cells in a matrix format, a decoder which consumes a minimum of power and which may be constructed using a minimum of allotted space in an integrated circuit is achieved.

Abstract: A ladder attachment is provided for holding a ladder on a sloping roof. Sharp, pointed members or claws are attached to the ladder which, in operation, protrude from the ladder in a direction facing the roof. The sharp, pointed members pierce into the roof a selected distance at a selected angle and hold the ladder on the roof without sliding. Multiple non-skid surfaces are also provided on the rungs of the ladder for supporting the user.

Abstract: A circuit (40) is capable of receiving a very high voltage input signal, for example from a piezoelectric transducer (1). The circuit accepts the relatively large input voltage of the piezoelectric transducer (1) and provides an output signal proportional to the square root of the input voltage.

Abstract: A contact (15) formed in accordance with the present invention includes rounded corners on the upper and lower surface and sloped walls in the dielectric material (10) in which the contact is formed. In one embodiment, a photolithographic mask is formed above the dielectric material (10) using photolithographic techniques well known in the art. Using reactive ion etching techniques, the contact is etched until a small portion of the dielectric material remains to be etched in the contact. The photolithographic mask is then removed. The contact is then completely etched using a reactive ion etching process. Using this technique, the contact formed has rounded upper edges.

Abstract: An integrated circuit structure comprises a plurality of islands of semiconductor material (16-1 through 16-5) each island being separated from adjacent islands by a groove formed in annular shape around said island to laterally define the dimensions of each such island, an oxide (12, 14) formed over the surface of said grooves (13-1 through 13-6) and said islands and a selected glass (15) deposited on said oxide (14) in the grooves and over the top surface of said device, said glass having the property that it flows at a temperature beneath the temperature at which dopants in the islands of semiconductor material substantially redistribute, said selected glass (15) having a substantially flat top surface thereby to give said structure a substantially flat top surface.

Abstract: A control circuit is provided for controlling the on-time of a pair of switching transistors in a half bridge converter. The control circuit includes a first comparator for comparing the converter output voltage with a reference voltage. The control circuit also includes a circuit which generates a first signal indicative of the current through the primary winding of the converter output transformer. Also included is a circuit which generates a second signal indicative of the on-time of one of the switching transistors exceeding the on-time of the other switching transistor. The first and second signals are averaged and compared with the output voltage of the first comparator by a second comparator. The second comparator controls the on-time of the switching transistors. In this way, any imbalance in the on-time of the switching transistors is corrected by the control circuit.

Abstract: A roll labeler for labeling containers one by one automatically is provided. A label sheet is supplied as uncoiled from a roll over a predetermined length and the label sheet is cut by a cutter thereby producing a cut sheet of label which is then glued while being transported and attached to the corresponding container. The labeler includes a feed roller for feeding the label sheet to the cutter intermittently and a mechanism for transporting containers to be labeled along a container transportation path. The labeler also includes a pair of driving sources: one driving source for driving the feed roller and the other driving source for driving the container transporting mechanism.

Abstract: A semiconductor chip carrier and contact array package having an apertured dielectric bottom layer (11), one or more chip connection layers such as wire bond layers (16, 17) insulated from one another, at least one chip-holding recess (24) in the wire bond layers and a heat conductive copper heat sink insert (26) extending across the aperture of the dielectric layer and forming a base adapted to be in heat-conductive contact with the bottom of an integrated circuit chip (27) to be attached thereon whereby heat flux generated by the chip is quickly and efficiently removed from the chip body. The wire bond layers (16, 17) contains metallization patterns (29) for bonding to the chip and a grid array of contacts or connection pins (20) connected to plated through-holes in the wire bond layer(s) for plugging the carrier to a circuit board or the like.

Abstract: A rolling-contact bearing assembly includes an inner guide member having a U-shaped cross section, an outer guide member having a U-shaped cross section and arranged to substantially enclose the inner guide member as oriented in the same direction in a piggyback fashion, and rolling members interposed between the inner and outer guide members to allow a relative motion therebetween. Such a piggyback arrangement is advantageous in enhancing the structural integrity of the assembly and making the assembly smaller in size.

Abstract: A flip-flop stores input data on both the leading and trailing edges of a clock pulse. The flip-flop includes a data path responsive to the leading edge of a clock pulse and a second data path responsive to the trailing edge of a clock pulse, thereby allowing data to be stored on both the leading edge and the trailing edge of a clock pulse.

Abstract: A power converter has a power switching stage which includes an output transformer containing a primary winding and a secondary winding, as well as structure for switching the current flowing through the primary from a first direction to a second direction. A feedback circuit is provided for feeding back a voltage proportional to a portion of the voltage across the primary winding on said output transformer to the structure for switching, to regeneratively turn on the switch and maintain the current flowing through the primary in the direction to which the current has been switched until the current is turned off. To help start the current through the primary in one direction or the other direction, structure is provided which supplies a pulse to the structure for switching, to positively start the current flowing in the desired direction through the primary.

Abstract: A handle for use in carrying and pouring from a plastic bottle comprises a single two-ended piece of flat flexible material possessing at one end means for attachment to a bottle neck and at the other end means for attachment to the bottle bottom. Between the two ends of material is formed a hand hold. The handle attaches to the bottle neck by use of two partially overlapping, nonconcentric openings the first of which slips over the bottle neck and collar and the second of which then snaps around the neck when the handle is tugged. The bottom employs a pair of integral stabilizing tabs extending inwardly of a bottle encompassing ring which upon insertion over the top of the bottle and movement downwardly over the bottle periphery extend both upwardly or one upwardly and one downwardly with respect to the ring, thus firmly gripping a lower part of the bottle.

Abstract: Circuitry is provided for testing fusible link arrays for short circuits around the fusible links. The resistance of each corresponding link in each of the four quandrants in the array is compared with the resistance of an array of reference fusible links to detect the presence or absence of a short circuit.

Abstract: A text comparator receives data stored in a mass storage device. The text comparator includes word logic, delimiter logic, set logic, set combination logic, proximity logic, and programming logic. The delimiter logic serves to monitor the characters transferred from the mass storage device and provides discrete signals depicting whether the character being transferred is a predefined delimiter character. The word logic serves to store data regarding predefined words (i.e., strings of characters) which are to be located and provides output word signals indicating when such predefined words have been located. The set logic receives the delimiter signals and word signals and provides output signals when selected words are located in the same sentence, same paragraph, etc., as desired. The set combination logic serves to combine the signals from the set logic in order to generate output signals in response to more complex search strategies than can be easily detected by the set logic.

Abstract: PASS transistors are used to reduce the layout complexity of logic circuits by using PASS transistors connected to pass a first and second input function to an output node in response to selected control signals, thereby to generate a selected output function on the output node. The PASS transistor comprises a transistor capable of passing an input function in response to a control signal applied to the transistor thereby to generate an output function related to the input function. In general, the input function comprises less than all of a set of input variables and the control function comprises one or more of the remainder of the set of input variables.

Abstract: This data processing system for a pattern generator receives data specifying each quadrilateral element in a pattern to be generated by laser scanning or other technique. The scanning is accomplished by swaths. In the preprocessor, separate vectors are produced for the portion of each quadrilateral edge in each swath. A real time processor, including a "pipeline" or cascaded set of beam processors, is used to generate a bit map from these clipped edge vectors. The bit map itself is skew compensated to take into account relative movement between the laser scanner and the target during pattern generation.

Abstract: A capping apparatus includes a turn table which is supported to be rotatable and provided with a plurality of container holders for temporarily holding the containers securely, a plurality of cap holders for releasably holding caps to be screwed onto the mouth portion of the containers, a plurality of torque motors individually provided for rotating the corresponding cap holders and a microcomputer for controlling the level of torque applied to the cap holders by the torque motors. The torque applied to the cap holder during the screwing operation is set to be higher in level during the first revolution of the cap and lower in level during the remaining rotation of the cap than the torque applied upon completion of the screwing operation so that the caps can be screwed onto the threaded mouth portions of the containers all at the same tightening level.

Abstract: The invention relates to a loop antenna tuned by means of a variable capacitor.The antenna includes, in parallel with the variable capacitor (4), a switchable state variable inductor (11).The invention is particularly applicable to antennas for HF radio links at powers of up to 1 kW.

Abstract: A dust-free linear motion rolling-contact bearing assembly includes a track rail having a generally U-shaped cross section, a table having a generally inverted U-shaped cross section and received in the track rail and a plurality of rolling members interposed between the table and the track rail such that the table can move along the track rail freely. The present assembly also includes a pair of shielding plates each extending between one end of the table and the corresponding end of the track rail so that, as the table moves along the track rail, the shield plates keep the track rail covered at all times thereby preventing any undesired foreign matter, such as debris and dust, from getting into the assembly.

Abstract: A dual motor linear actuator is disclosed for use in a magnetic disc drive device. It includes a carriage reciprocatably guided between a pair of guide rails, with the accessing transducers being mounted to its inner end. Separate rectangular drive coils are affixed in symmetrical outboard relationship at the sides of the body of the carriage. The actuator assembly further includes two pairs of slab shaped magnets mounted to E-shaped magnet support structures that are integrally formed with the base of the disc drive device. The magnets are mounted to form two air gaps that are symmetrically disposed relative to a center plane and so that they respectively cooperate with the drive coils to apply motive forces on the carriage generally along two lines that are equidistantly spaced from the aforesaid plane of symmetry. The outer ends of pole pieces of the two magnet support structures are rigidly interconnected by a single plate that acts as an end pole piece for both magnet support structures.