Abstract: At least one optical waveguide is supported on a substrate and has a plurality of key apertures formed in a complaint element thereof. An optoelectronic device such as a vertical cavity surface emitting laser (VCSEL) has a plurality of projections that register with corresponding key apertures to position the optoelectronic device in a predetermined alignment relative to the optical waveguide.

Abstract: A method and apparatus for detecting open defects on grounded nodes of an electrical device using capacitive lead frame technology is presented. In accordance with the method of the invention, an accessible signal node that is capacitively coupled the grounded node is stimulated with a known source signal. A capacitive sense plate is capacitively coupled to the stimulated node and grounded node of the electrical device, and a measuring device coupled to the capacitive sense plate capacitively senses a resulting signal. The value of the capacitively sensed signal is indicative of the presence or non-presence of an open defect on one or both of the grounded node and stimulated signal node.

Abstract: The present invention relates to an ionization source having a chamber for ionizing a sample. The ionization chamber has surfaces to reduce the overall interaction with reactive samples. The inner surface walls of the ionization chamber or the ionization chamber may be formed from an inert super alloy. For instance, Inconel™ 625, Inconel™ 601 or Hastelloy® may comprise the ionization chamber or the surface walls of the ionization chamber. The invention also includes a method for reducing the interaction of a reactive analyte with an ion source.

Abstract: A method and apparatus for using arrays of polymers each having a pattern of features over a corresponding array region on a surface of a flexible elongated web. In this method each array region may be exposed to a corresponding continuous volume of a sample fluid. A method and apparatus are also provided for reading arrays disposed along a surface of a flexible elongated web. In one such method the web with the arrays thereon may be transported in a lengthwise direction past a reading location at which a characteristic of the features is read, while restraining the web on both surfaces on either side of the reading location to assist in maintaining the reading location flat.

Abstract: A method and system for quantifying and correcting spatial-intensity trends for each channel of a microarray data set having one or more channels. The method and system of one embodiment of the present invention selects a set of features from each channel of the microarray data set. Based on the selected set of features, a surface is used to determine the intensities for all features in each channel of the microarray data set. Spatial-intensity trends within the microarray data set are quantified, based on the surface to the intensities for each channel of the microarray data set. After the surface has been determined, the spatial-intensity trend can be removed from the microarray data set.

Abstract: An apparatus and method for synchronous communications using a serial data stream employs a housing with a controller and a back plane. The housing accepts one or more modules for interconnection with the back plane. The back plane distributes power to the modules and provides a communication link from the controller to each module. Each communication link includes a data out line, a data in line and a clock line, where each clock line is derived from one clock source.

Abstract: A network analyzing apparatus that analyzes the network properties of a device under test by applying reference signals to a device under test by frequency sweeping or power sweeping comprises input device for inputting the sweep range and sweep interval of these reference signals as well as the center coordinates and radius of a test circle for testing this device under test; a measurement apparatus for measuring the network properties of this device under test and obtaining measurements for n number of measurement points determined from this sweep range and sweep interval; and a testing apparatus, with this testing apparatus finding the difference between this measurement and center coordinates and, referring to this difference and this radius, determining that this measurement that has been read passes the test if the magnitude of this referred difference is no greater than this referred radius, or is less than this referred radius.

Abstract: A push-pull amplifier includes a pair of transistors, wherein each of the transistors has a control terminal, a first terminal, and a second terminal. A current that flows between the first terminal and the second terminal is controlled in accordance with signals applied to the control terminal, such that when an amount of current flowing between the first terminal and the second terminal of one of the transistors is within a predetermined range, a high-frequency component of the signals input to the control terminal of one of the transistors is amplified, and when this current is outside the predetermined range, the high frequency component is not amplified.

Abstract: A microwave imaging system uses microwave radiation provided by a microwave source to image targets. The system includes an array of antenna elements that are capable of being programmed with a respective transmission coefficient to direct the microwave illumination from the microwave source toward a position on the target. The antenna elements are further capable of being programmed with a respective additional transmission coefficient to receive reflected microwave illumination reflected from the position on the target and direct the reflected microwave illumination towards a microwave receiver. A processor is operable to measure an intensity of the reflected microwave illumination to determine a value of a pixel within an image of the target. Multiple beams can be directed towards the target to obtain corresponding pixel values for use by the processor in constructing the image.

Abstract: A probing apparatus includes a mechanism apparatus. The mechanism apparatus includes a base body, a vibration absorber, a shifting mechanism, and a stage connected via the base body to a ground terminal. A probe, positioned over the stage, is connected to a measurement terminal of a measuring apparatus via a signal cable. The signal cable has a connecting terminal connected to the measurement terminal of the measuring apparatus. A shielding cover, positioned over a measured device on a glass substrate held on the stage, has an area not smaller than an area of the measured device and not greater than four times the area of the measured device. The shielding cover is grounded.

Abstract: Methods and compositions for identifying or detecting viral nucleic acids in a host cell are described. DNA fragments are bound to DNA-binding protein in a host cell and enriched using immunoprecipitation. The enriched fragments are then hybridized to a microarray containing sequences complementary to proviral DNA and genomic DNA.

Abstract: A transition module using an input/output (I/O) bus interface can be connected to a backplane having a bus connector. The transition module is provided with an external connector for receiving an input signal, an interface circuit coupled to the external connector and a processing unit for carrying out initial filtering and processing of the input signal before coupling the signal to a processor card connected to the backplane via the I/O bus interface and the bus connector.

Abstract: An interconnection includes a microcircuit package having a slot, and a receiving feature. A bead ring is fitted into the receiving feature. A center conductor extends through a dielectric support disposed in the bead ring and through the slot. The center conductor forms a coaxial transmission structure in cooperation with the bead ring and the dielectric support, and forms a slab line transmission structure in cooperation with the slot.

Abstract: Single port characterization of RF amplifier phase and amplitude transfer functions are developed by measuring the output of the amplifier as it is excited by a predetermined frequency over a series of bias steps. One bias step is chosen as a reference level. Amplitude characterization is obtained from measured magnitude at each step in the test sequence. Phase information is extracted from the same measurements by measuring phase and phase trajectory at a reference level, and subtracting measured phase information at a desired step in the test sequence from an estimation of the reference phase trajectory at that step. Reference measurements may be interspersed with other measurements.

Abstract: Non-contact connectivity testing of joints connecting circuit junctions are improved through knowledge of characteristics of semiconductor junctions connected to component nodes of components of a device under test (DUT) to allow detection of high-impedance joints.

Abstract: The present invention includes a method for generating a model of a circuit having an input port and an output port. The method determines an amplitude for current leaving the output port at a frequency ?k when a signal that includes a carrier at ?j modulated by a signal Vj(t) is input to the input port, wherein ?k is a harmonic of ?j. The determined amplitude is used to determine values for a set of constants, ak, such that a function fk(V,ak) provides an estimate of the current, Ik(t), leaving the output port at a frequency ?k when a signal having the form V ? ( t ) = Re ? ? k = 1 , H ? V k ? ( t ) ? exp ? ( j? k ? t ) is input to the input port. Here Vk(t) is a component of a set of values V. The fk(V,ak) are used to provide a simulator component adapted for use in a circuit simulator.

Abstract: A system for correlating and displaying dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication networks, a first communication protocol associated with a first communication network, a second communication protocol associated with a second communication network, and a software code segment configured to detect a first call identifier associated with the first communication protocol, the software code segment also configured to detect a second call identifier associated with the second communication protocol, where the first call identifier and the second call identifier are correlated to a particular call. The system displays the correlated call identifiers to a user in a real-time call flow record.

Abstract: The present invention generally relates to systems and methods for identifying and/or quantifying targets such as nucleic acid targets using compound probes (e.g., oligonucleotide probes), which can comprise first and second sequences able to hybridize to one or more nucleic acids or portions thereof. In one aspect, a nucleic acid (e.g., one or more genomes or chromosomes) may be fragmented, and the fragments exposed to a compound probe. By suitably labeling of the fragments, the amount of binding of each of the fragments to the compound probe may be determined. In some cases, the fragments may be distinguishably labeled, and in certain embodiments, the fragments may be sorted (e.g., via size or charge) prior to exposure to the compound probe.

Abstract: Techniques and equipment are provided, including computer-related software and hardware, for analyzing biological events on multiple-spot arrays for chemical, biological, or biochemical analysis. In one arrangement, techniques and equipment are provided for analyzing nucleotide sequences of nucleic acid molecules, e.g., using multiple probes per spot of an array. Arrays can be provided in which multiple probes exist on multiple spots, and where analysis of whether a particular target molecule bound to a particular spot does not necessarily provide information on what probe the target bound to. The invention provides techniques for analyzing biological events in the form of, for example, deconvolution of binding data.