Abstract: A reel-like format for transporting devices under test (DUT) into low power x-ray inspection system allows for high speed transportation and inspection that is several orders of magnitude faster than conventional systems. The system can be configured with a conveyor belt for handling of non-reel suitable DUTs. A stabilizing control mechanism precisely and accurately brings the tape (with components) into the x-raying window, that allows spatial displacement of a portion of the to-be-viewed tape.

Abstract: A thermally conductive adhesive composition includes a powder of a high melting point metal or metal alloy, a powder of a low melting point metal or metal alloy, and a polymerizable fluxing polymer matrix composition having a polyepoxide polymer resin and a low-melting solid or liquid acid-anhydride and a polymer diluent or diluents with carbon carbon double bonds and/or functional hydroxyl groups. The ratio by weight of the low melting point powder to high melting point powder ranges from about 0.50 to about 0.80, and may range from about 0.64 to about 0.75, and may be 0.665. Heretofore unpredicted substantially higher thermal conductivity improvements in performance have been found using these ratios of low melting point powder to high melting point powder.

Abstract: A radiation detector assembly has a semiconductor detector array substrate of CdZnTe or CdTe, having a plurality of detector cell pads on a first surface thereof, the pads having a contact metallization and a solder barrier metallization. An interposer card has planar dimensions no larger than planar dimensions of the semiconductor detector array substrate, a plurality of interconnect pads on a first surface thereof, at least one readout semiconductor chip and at least one connector on a second surface thereof, each having planar dimensions no larger than the planar dimensions of the interposer card. Solder columns extend from contacts on the interposer first surface to the plurality of pads on the semiconductor detector array substrate first surface, the solder columns having at least one solder having a melting point or liquidus less than 120 degrees C.

Abstract: A calibration assembly generates elemental mercury and oxidized mercury for calibrating components of a mercury monitoring system, including making necessary adjustments to efficiencies of a mercury compound converter and an elemental mercury detector. The calibrator generates an elemental mercury sample having a known elemental mercury concentration, [Hg0]1 and combines an oxidizing component with the elemental mercury sample, thereby producing a reduced concentration of elemental mercury [Hg0]2 within the sample. The calibrator measures the concentration of elemental mercury [Hg0]2 within the sample and calculates a difference between the known elemental mercury concentration, [Hg0]1 and the reduced concentration [Hg0]2. The difference between [Hg0]1 and [Hg0]2 is substantially equal to the concentration of oxidized mercury produced by the calibrator.

Abstract: The present invention provides a method for transmitting multimedia wireless data to a host system, which comprises the steps of generating a key signal corresponding to a selected key; converting the key signal into a series of data symbols, each of the data symbols having a plurality of chip data, and activating one or more chip data from the plurality of chip data; and converting each data symbol having the one or more activated chip data into an infrared pulse stream and transmitting it as the multimedia wireless data. Further, as a result of activating only a portion of of the plurality of chip data, the power consumption of the system is lowered.

Abstract: An apparatus and method for mass producing optically readable discs includes providing an array of light emitting devices which are arranged in a spiral pattern corresponding to the spiral track along which data is recorded on optically readable discs. The light emitting devices of the array are driven selectively to expose a layer of photoresist on a substrate. The light is focused on the substrate by an array of micro-lenses corresponding to the array of light emitting devices. When the photoresist on the substrate is developed, it can either by cured for use as a stamper or metallized for use in forming, in succession, a father, a mother and a stamper.

Abstract: The thick film delay line of the present invention comprises a substrate having a plurality of conductive pads mounted along the edge thereof. A plurality of delay circuit assemblies are stacked on the upper surface of the substrate. Each delay circuit comprises a solid sheet of conductive material, a first layer of dielectric material superimposed over the solid conductor sheet, a spiral coil conductor having its opposite ends connected to two separate contact pads, and a second sheet of dielectric material covering the spiral conductor. The spiral conductors within each of the delay circuit assemblies are connected to one another in series.

Abstract: An infrared light generator directs a flashing band of light across a conveyor belt carrying randomly spaced materials having differing properties. The frequency of the flashing band sequentially alternates between two infrared frequencies chosen for their peculiar reflectivity characteristics. Infrared light sensitive cells detect energy reflected from the passing materials as they are exposed to the infrared light. Comparator circuitry examines the detected information, determining the size and material nature of the passing pieces. Powered paddles act at the direction of the comparator, physically separating variously sized inorganic from organic materials, or ripe from unripe comestibles, to cite examples.

Abstract: An automated token system (particularly for toll roads) utilizing a token which may be permanently magnetized and demagnetized. The token is made of permanent magnetic materials such as barium ferrite and a plastic material, is circular and has a uniform thickness.The system includes a mechanism for magnetically and visually writing on the token at an entrance to a controlled area or road and a reader for reading information at the exit. The mechanism for writing includes an electromagnetic conditioner which erases old information and an electromagnetic head or heads which place data bits of information on the token. An input from a computer and/or shift register and/or switches and appropriate amplifiers signal the electromagnetic heads. The reader for reading includes a scanning head which takes the information from the token and transmits it to a shift register or computer.

Abstract: A tool-carrying vehicle, such as a road grader, is provided with an apparatus for maintaining a predetermined distance between its blade or other tool and a laser reference plane generated by a rotating laser beam. The apparatus includes a detector housing supported on a mounting extending upwardly from the blade, a detector support frame on the housing, a laser reference plane detector on the support frame, and electrical control circuitry. The mounting is movable to permit moving the detector housing relative to the vehicle in response to tool movement.The laser reference plane detector has first and second spaced apart laser beam detecting arrays. The detector may be provided with upper and lower movable carriages with one of the arrays positioned on each carriage, permitting the carriages to converge and diverge to vary the distance separating the detecting arrays and thereby control the degree of accuracy required of the tool.

Abstract: A land-surveying apparatus for use with a laser beam source to obtain grade and range distances has a grade pole with a laser beam detection unit slidably mounted thereon, electrical measuring means being connected between the grade pole and the detection unit to generate an electrical grade signal representative of the grade distance between a detector using an array of phototransistors and the base of the grade pole. A digital display unit receives the grade signal, processes it, and digitally, visibly displays the information contained in the signal. Electrical grade calculating circuitry is provided to process first and second grade signals containing the elevation of the upper and lower edges of the laser beam relative to the base of the pole and arithmetically process the signals to obtain the elevation of the laser beam center which is then displayed as the grade distance.