Abstract: Provided is a process for preparing certain silane precursor compounds, e.g., triiodosilane from trichlorosilane utilizing lithium iodide in powder form and catalyzed by tertiary amines. The process provides triiodosilane in high yields and high purity. Triiodosilane is a precursor compound useful in the atomic layer deposition of silicon onto various microelectronic device structures.

Abstract: Aspects of the embodiments are directed an analog front end circuit (AFE circuit), the AFE circuit including a beamforming circuit configured to receive as an input a plurality of receiver inputs, the receiver inputs coupled to a sensor element. The beamforming circuit can include a plurality of receiver sub-circuits, each sub-circuit including a digital-to-analog converter, a low noise amplifier, and an I/Q mixer circuit element; an adder circuit element at an output of the I/Q mixer circuit element; and a multiplexer coupled to an output of the adder circuit. The AFE can be part of a current sensing device. The current sensing device can include a two-dimensional array of sensor elements.

Abstract: Techniques to control a capacitive touch screen that decrease processing time and increase noise rejection. The techniques may include injecting a plurality of excitation signals having unique spectral profiles onto conductors of the capacitive touch screen, sampling signals returned from the screen, and determining a location of touch. The techniques may further include injecting a plurality of excitation signals having unique spectral profiles onto adjacent or non-adjacent conductors of the capacitive touch screen. The techniques may further include injecting a plurality of excitation signals having unique spectral profiles onto conductors of the capacitive touch screen in unequal measures. The techniques may also include mapping frequency characteristics of noise present on the capacitive touch screen.

Abstract: Improved capacitive sensor operation is achieved with improved discrimination between environmental drift and apparent drift attributable to human proximity to the sensor. A proximity algorithm detects conditions interpreted as indicating a user is close to, but not touching, a sensor. When such proximity is detected, ambient value calibration is halted, thereby avoiding treating the human's proximity as environmental drift requiring compensation and preventing miscalculation of calibration. The proximity algorithm employs two moving-average filters (implemented in hardware or software) to monitor the CDC output values over time and to make appropriate adjustments to a signal representing the ambient, while distinguishing environmental drift from proximity-induced pseudo-drift.

Abstract: The present invention relates to a method of implementing, using and also testing a machine learning system. Preferably the system employs the Naïve Bayesian prediction algorithm in conjunction with a feature data structure to provide probability distributions for an input record belonging to one or more categories. Elements of the feature data structure may be prioritised and sorted with a view to selecting relevant elements only for use in the calculation of a probability indication or distribution. A method of testing is also described which allows the influence of one input learning data record to be removed from the system with the same record being used to subsequently test the accuracy of the system.

Abstract: A system is installed in the subsurface to control the hydraulic gradient between the area within a containment system and the area outside the containment system, and provides an easy-to-maintain treatment system. Preferably, the treatment system includes a sufficiently sized conduit between the inside-area and the outside-area that is accessible via a manhole. This conduit can be filled with remedial material or other treatment equipment, the manhole-sized access providing a relatively easy means of providing, maintaining, and replacing this material and equipment. Because the conduit is appropriately sized, hydraulic pressures on either side of the open conduit can be expected to be substantially equal, thereby reducing the potential of leakage of contaminants caused by hydrostatic pressure. Gates and screens are provided on either side of the conduit, to facilitate flow control, with manhole accessways to facilitate maintenance of these gates and screens.

Abstract: A method for treating fungal infections in a mammal that comprises administering a therapeutically effective amount of a composition comprising amphotericin B and a pharmaceutically acceptable carrier, wherein the amphotericin B is substantially pure.

Abstract: A system for communication and mapping of business objects between a mobile client device and a plurality of backend systems via a network includes a mobile server and a mobile client device in data communication with the mobile server. The mobile server includes a process automation engine, a communication module coupled to the process automation engine and a presentation module coupled to the process automation engine and the communication module. The process automation engine is configured to map business objects to a plurality of backend systems and includes a plurality of mobile business processes where each mobile business process defines a flow and exchange of business objects between the mobile client device and at least one of the plurality of backend systems. The communication module is configured to receive and transmit business objects between the mobile client device and at least one of the plurality of mobile business processes via the network.

Abstract: The present invention is connected across a sense resistor which carries a current of interest. A first pair of cross-coupled switches are connected between the sense resistor and respective input capacitors, and a second pair of cross-coupled switches are connected between the input capacitors and the inputs of an amplifier having differential inputs and outputs. Feedback capacitors are connected between each of the amplifier's outputs and inputs. A control circuit operates the cross-coupled switches in accordance with a switching cycle, during which the connections between the sense resistor and the input capacitors are interchanged, after which the connections between the input capacitors and the differential amplifier are interchanged. When so arranged, the sensed voltage is sampled on the input capacitors and transferred to the feedback capacitors to produce a differential output voltage Vout from the differential amplifier which is proportional to the current of interest.

Abstract: A tri-state input detection circuit produces two binary outputs that indicate whether a tri-state input signal is high, low, or in a hi-impedance state. A pair of transistors conduct a current in response to a tri-state signal presented at an input node. Circuitry is provided to pull the input node to a known voltage when the input signal is in its hi-Z state. The transistors are series-connected to respective current sources, with the junctions between the transistors and their current sources forming the circuit's binary outputs. The output impedances of the current sources are made less than those of their respective transistors, so that when turned on by the input signal, a transistor pulls its associated output high or low. The circuit produces a unique binary output for each of the three input signal states.