Abstract: A digital to analog converter system is disclosed for receiving an input signal and a sign bit signal that is indicative of the sign of the input signal. The digital to analog converter system includes first and second pairs of resistor strings, and first and second switching networks. A first one of the first pair of resistor strings is adapted for coupling between a first voltage potential and an intermediate node. The first switching network is adapted to couple a voltage produced across a selected one of resistors in the first string across the second one of the resistor strings. The resistors in the second resistor string producing voltages in response to current passing from the first resistor string to the second resistor string through the first switching network. A third one of the second pair of resistor strings is adapted for coupling between a second voltage potential and the intermediate node.

Abstract: A method for the manufacture of a reinforced gel-forming fabric composite comprising a reinforcing layer and gel-forming fibre material is characterized in that the gel-forming fibre material in non-woven fabric form is needled into the reinforcing layer from one side so as to penetrate through the reinforcing layer and form a layer of gel-forming fibre material on both sides of the reinforcing layer. The resulting fabric finds use in a wound dressing.

Abstract: A hand-held portable modular spectrometer unit. The unit includes a detachable head containing a light source and optical components for detecting spectral information from light reflected from or transmitted through a target and a processor for converting the detected spectral information into digital information. The unit also includes a plug-in rechargeable power supply and a control module for controlling the components in the measurement head. The controller includes a computer processor for analyzing the digital information produced by the measurement head and a display monitor for displaying spectral information produced by the control unit. In preferred embodiments several measuring heads are available. Each of these measurement heads includes a spectrometer.

Abstract: A dual-mode delta-sigma analog to digital converter system is disclosed that uses a feed forward modulator and includes a low frequency resonator circuit and a high frequency resonator circuit and includes a feed-forward path from the final integrator in the high-frequency resonator circuit to a summer. The digital converter system includes a selection unit for permitting the high frequency resonator circuit and the low frequency resonator circuit to be employed in a first mode of operation. The system also permits the high frequency resonator circuit and the feed-forward path from the final integrator in the high-frequency resonator circuit to the summer to be disabled in a second mode of operation.

Abstract: The present invention is directed to a process for the preparation of polysaccharide-grafted polymer particles wherein the polysaccharide is preferably a ?-1,4 linked polysaccharide, comprising miniemulsion polymerisation.

Abstract: A switched capacitor integrator system includes an input cascoded amplifier circuit; a summing junction; an integrating switched capacitor circuit connected to the output of the input cascoded amplifier circuit and to the summing junction; the integrating switched capacitor circuit including an input switched capacitor circuit responsive to an input and connected to the summing junction; and a correlated double sampling capacitor circuit including an offset capacitor interconnected between the summing junction and the input of the input cascoded amplifier circuit.

Abstract: A method and system for modifying a computer's registry so that it is easily cleansed of spyware and other web-installed software. The registry is structured like an ACID type database, and is partitioned so that metadata associated with web-installed software are stored in a special partitioned. The registry also has revision control, so that prior versions can be retrieved and used if the current registry is corrupted.

Abstract: A dual-mode delta-sigma analog to digital converter system is disclosed that uses a feed forward modulator and includes a low frequency resonator circuit and a high frequency resonator circuit and includes a feed-forward path from the final integrator in the high-frequency resonator circuit to a summer. The digital converter system includes a selection unit for permitting the high frequency resonator circuit and the low frequency resonator circuit to be employed in a first mode of operation. The system also permits the high frequency resonator circuit and the feed-forward path from the final integrator in the high-frequency resonator circuit to the summer to be disabled in a second mode of operation.

Abstract: A digital to analog converter system is disclosed for receiving an input signal and a sign bit signal that is indicative of the sign of the input signal. The digital to analog converter system includes first and second pairs of resistor strings, and first and second switching networks. A first one of the first pair of resistor strings is adapted for coupling between a first voltage potential and an intermediate node. The first switching network is adapted to couple a voltage produced across a selected one of resistors in the first string across the second one of the resistor strings. The resistors in the second resistor string producing voltages in response to current passing from the first resistor string to the second resistor string through the first switching network. A third one of the second pair of resistor strings is adapted for coupling between a second voltage potential and the intermediate node.

Abstract: The present invention is directed to a process for the preparation of polysaccharide grafted latex particles wherein the polysaccharide has ?-1,4 linkages, wherein the process comprises core/shell emulsion polymerisation. Preferably, the process comprises a single step of preparing the latex particles by emulsion polymerisation of latex monomers with the simultaneous grafting of the polysaccharide.

Abstract: The present invention is directed to a process for the preparation of polysaccharide-grafted polymer particles wherein the polysaccharide is preferably a ?-1,4 linked polysaccharide, comprising miniemulsion polymerisation.

Abstract: The present invention is directed to polysaccharide-grafted polymer particles wherein the polysaccharide is preferably a ?-1,4 linked polysaccharide and the particle comprises monomer units and a preformed polymer, and/or an inorganic solid or organic material.

Abstract: The present invention is directed to polysaccharide-grafted polymer particles wherein the polysaccharide is preferably a ?-1,4 linked polysaccharide and the particle comprises monomer units which may include hydrophobic water insoluble monomer units and/or hydrophilic monomer units, wherein the hydrophilic monomer units are derived from monomers having a solubility of greater than 30 g/litre in water (distilled or equivalent) at 25° C.

Abstract: A switched capacitor integrator system includes an input cascoded amplifier circuit; a summing junction; an integrating switched capacitor circuit connected to the output of the input cascoded amplifier circuit and to the summing junction; the integrating switched capacitor circuit including an input switched capacitor circuit responsive to an input and connected to the summing junction; and a correlated double sampling capacitor circuit including an offset capacitor interconnected between the summing junction and the input of the input cascoded amplifier circuit.

Abstract: A multimode voltage regulator includes a low current pass device and a high current pass device each adapted for connection between a power supply and a load; an error amplifier responsive to a difference between a reference voltage and a function of the voltage on the load to produce an error signal; and a low power driver responsive in a low load power mode to an error signal for operating the low current pass device to provide low power to the load and a high power driver responsive in a high load power mode to an error signal for operating the high current pass device to provide high power to the load for maintaining efficiency over high and low power load operation.

Abstract: A mixture containing a monohydric alkyl alcohol and an alkoxysilane is purified by (i) adding an organic salt or an inorganic salt to the monohydric alkyl alcohol and the alkoxysilane; (ii) mixing the organic or inorganic salt with the monohydric alkyl alcohol and the alkoxysilane; and (iii) separating from (ii) a first phase containing the alkoxysilane, and a second phase containing the monohydric alcohol and the organic or inorganic salt. The preferred salt is lithium chloride, and the monohydric alkyl alcohol is most typically methyl alcohol or ethyl alcohol.

Abstract: A method of synchronising the filling of a queue, present at an interface between a packet network and a synchronous data link for storing packet identifiers identifying packets received from the packet network, to an incoming packet flow, the method comprising receiving a packet at said interface, identifying the sequence number of said packet, setting a read pointer, pointing to the next packet identifier to be read from the queue, to a value which is a predefined amount less than the identified sequence number. The method also provides a means for extending and reducing the average size of the queue in order to maintain the average size at an optimum level.

Abstract: A water-dispersible particle wherein the material comprises (i) one or more polymeric deposition materials having an average repeat unit (I):  wherein at least one or more R groups of the polymer are independently selected from H, a hydrolysable group or a linker group in which when R is a hydrolysable group the degree of substitution is 0 to 3 and when R is a linker group the degree of substitution is 0.01 to 3; (ii) a benefit agent attached to the deposition enhancing part;  characterised in that the water-dispersible particle has a particle size from 20 to 5,000 nm.

Abstract: A fabric care composition comprising a thermoplastic elastomer and a terpene.

Abstract: The present invention is directed to a process for the preparation of polysaccharide grafted latex particles wherein the polysaccharide has &bgr;-1,4 linkages, wherein the process comprises core/shell emulsion polymerisation. Preferably, the process comprises a single step of preparing the latex particles by emulsion polymerisation of latex monomers with the simultaneous grafting of the polysaccharide.