Abstract: Coupler-based amplifiers provide a measure of load mismatch based on the difference between the two output signal amplitudes from the amplifiers. This measure can be used to control variable matching networks (VMNs) or amplifier supply voltages to maintain constant distortion levels and high power transfer/efficiency and even to control output power. Load mismatch is measured by comparing the amplifier device output amplitudes and adjusting the circuit based on the comparison to counteract undesired behavior, such as increasing distortion levels.

Abstract: The present invention relates to the field of the in vitro diagnosis nosis of the progression status of an infection of an individual with a virus belonging to the family of the Human Immunodeficiency Viruses (HIV) as well as with the therapeutical treatment of this infectious disease.

Abstract: An apparatus for cutting a roll of material comprising an elongated blade having a distal end, a cutting guide attached to the elongated blade and positioned to direct the distal end of the elongated blade towards the roll of material, and a support position to hold the roll of material approximate to the elongated blade. A method for cutting a roll of material having an axis and a circumference is taught. The method comprises radially cutting the roll of material from the circumference to the axis by advancing the distal end of an elongated blade, then rotating the elongated blade relative the axis to cut the roll of material. Alternately, the method teaches rotating the roll of material relative to the axis to cut the roll of material.

Abstract: A radar system having a beamless emission signature is described. In one implementation, the radar system includes a transmission system and a receiver system. The transmission system is configured to transmit a pattern comprising a plurality of radar signals having different frequencies simultaneously. The receiver system is configured to receive a reflection of the pattern and combine the plurality of radar signals into a composite waveform forming an image of a target.

Abstract: A grain wagon includes a wheel supported frame supporting a container having inclined front and rear walls connected by opposite inclined side walls. Each side wall has inwardly projecting wall portions defining a wheel well for receiving longitudinally offset dual wheels or extra wide wheels. The rear wall includes a portion sloping between the wheel well wall portions to a forward grain removal zone, and generally triangular diverter walls extend from the rear wall to the wheel well wall portions. A corner discharge auger conveyor extends from the grain removal zone and has an upper portion which pivots to a stored position adjacent the front wall of the container. The dual wheels are positioned within the wheel wells by support members having end portions pivotally connected to the wagon frame and opposite end portions connected to the frame by laterally slidable clamping plates.

Abstract: An integrated storage device for transferring data between a remote base station and an appliance, includes a non-volatile storage device configured for storing the data, an antenna and a processor arrangement. The antenna is configured for wirelessly receiving electrical energy from the remote base station in order to power the non-volatile storage device. The antenna is also configured for transferring the data between the remote base station and the non-volatile storage device. The processor arrangement is permanently operationally connected to the non-volatile storage device. The processor arrangement is configured to manage data transfer between the non-volatile storage device and the appliance when the processor arrangement is electrically connected to a power supply via a wired power link.

Abstract: In general, in one aspect, the invention relates to a method for determining a system integrity of an oilfield machine operatively coupled to a magnetic drive, wherein the magnetic drive is configured to provide a controlled operational speed, comprising adjusting a control on the oilfield machine such that the oilfield machine operates at a baseline speed, recording a raw system integrity measurement while the oilfield machine is operating at the baseline speed, and calculating the system integrity using the raw system integrity measurement and a baseline system integrity measurement.

Abstract: An adaptive filter that, in one embodiment, filters rows of pixels of an image in a vertical direction, stores the results in row vectors, and then filters the row vectors in the horizontal direction, and displays the results or stores the results for later display. Coefficients of a reference filter are modified based on the output from the reference filter through a table-lookup process that accesses tables of modified filter coefficients. The output of the modified filter is added to a delayed version of the input to provide the adaptive filter output.

Abstract: Headerless (i.e., zero byte) data packets are sent by a compressor over a radio bearer. The radio bearer includes a synchronized wireless link. A sequential timer-based value is associated with each of the headerless data packets. A decompressor generates a header based on the sequential timer-based value associated with a given received headerless data packet. A data packet having a compressed header is sent periodically over the synchronized wireless link. The data packet having the compressed header can also be sent when the compressor detects changes in slowly-varying header fields, in response to feedback received from the decompressor indicating that a decompression context is out of synchronization and/or just before talk spurts occur.

Abstract: A plant which serves to produce a nonwoven web of fibers out of a fibrous material, such a cellulose pulp. The plant comprises a hammer mill for defibrating the fibrous material and a forming head for forming a web of fibers on an endless forming wire, which, during operation, runs mainly horizontally, a first transport fan for transporting defibrated fiber to the forming head via a first air duct and a second transport fan to extract nits from the forming head via a second air duct. Furthermore, the plant comprises a separator, which is connected to the second air duct and arranged for separating the nits and the well-opened fiber, a third transport fan for returning the separated, well-opened fibers to the forming head, and a nits-opener for converting the separated nits into well-opened fiber. The separated nits are transported from the nits separator to the nits-opener by means of a fourth transport fan via a fourth air duct.

Abstract: Methods, systems and computer-readable code for maintaining flash data structures in accordance with events of a flash memory system are disclosed. Both an events log as well as at least one flash management table are maintained in flash memory. For at least one point in time, a most recently stored flash memory table is indicative of an earlier state of the flash memory system, while at least one event that is more recent than the earlier state is stored in the events log. During power-up, the flash management table is retrieved from flash memory. If the most recent event of the flash memory table is earlier than the most recent event of the events log, events are retrieved from the events log in order to update the flash memory table. Optionally, the updated flash memory table is saved to flash memory.

Abstract: A method and apparatus for generating short electronic pulses using a modified differential trigger that is partly an analogue sinusoidal voltage and partly a selectable, DC voltage. The differential trigger is applied to a differential base band pulse generator having a NAND gate and AND gate. The trigger is applied to both NAND inputs and to one AND input. The NAND output is applied the other AND input. Such a circuit is an OFF state for all input states. However, as the input switches state, the NAND gate delay causes the AND gate to be ON briefly, generating a short pulse. The timing of this pulse can be controlled by varying the constant DC voltage. By using fast switching SiGe CML gates, short pulses with a controllable time off-set can be generated that are suitable for use in automotive radar applications, using only sub-GHz clocks.

Abstract: SiGe Differential Cascode Amplifier with Miller Effect Resonator A high-power, high frequency (1-100 GHz) power amplifier, made using SiGe transistors. A differential common-emitter amplifier section supplies the voltage amplification, allowing the total voltage swing of the amplifier to be twice the breakdown voltage of the individual transistors. Current amplification is supplied by a differential common-emitter amplifier section, connected in cascode with the differential common-emitter amplifier section. Appropriately chosen resonators in the cascode connection resonate out the Miller effect, negative current feed back of the circuit at the amplifier's operational frequency, allowing the amplifier to provide high power output at the operational frequency.

Abstract: A restraint anchorage for a child safety seat for an automotive vehicle having a cross member disposed behind the vehicle's seat. U-shaped latch wires are attached to the cross member. Collars are provided on the legs of the latch wires which engage one side of the cross members. The ends of the legs which protrude through holes provided in the cross member are peened over to form enlarged heads locking the latch wire to the cross member.

Abstract: A method of the preparation and utilization of polymerized alpha-hydroxycarboxylic-acid-coated proppants for gravel pack and removal of filter cake that was deposited by reservoir drilling fluid. In a preferred example, polyglycolic-acid-coated sand is used to replace conventional gravel pack sand typically used for gravel packing. Under downhole conditions, the acidic by-product generated from the hydration of polyglycolic-acid-coated sand can break down acid-soluble and/or acid-breakable components embedded in the filter cake. This reaction enhances the filter cake removal and the flow of hydrocarbon from the producing formation. The polyglycolic-acid-coated sand may be produced by polymerizing a glycolic acid with a natural or synthetic proppant like 20–40 mesh commercial sand, at temperatures of about 210° F. or higher.

Abstract: A processing apparatus for fluid with a simple structure, high productivity, ability of precise dispersion, emulsification and grinding, is provided. The apparatus of the present invention comprises at least two processing faces of a first face and a second face, both of which are arranged in a tight-closed passage, and positioned opposite to each other to constitute part of said passage, and a contact pressure applying mechanism for putting both faces 1, 2 into closed contact with each other, wherein the rotation of the second processing face 2 in respect of the first processing face 1 may cause dispersion or emulsification of the fluid to be processed between both processing faces 1, 2.

Abstract: A device for testing the functioning in an internal combustion engine of spark plugs which are recessed within the cylinder head. Connection to the recessed spark plugs can be accomplished by an elongated device shaped to fit within and extend beyond the spark plug recess, preferably with a secure frictional fit within that recess and preferably designed with portions of different diameters so that, by inverting, the unit can be used with cylinder head recesses with a wide range of internal diameters. The device may, if desired, carry a shield member adapted when the device is in use to cover the exposed top of the recess, thereby to prevent foreign material from entering the recess while ignition system testing is carried out. The device may be readily combined with other devices to constitute a kit of virtually unrestricted testing capacity.

Abstract: A low control voltage switch utilizing a plurality of field effect transistors (FETs) having a total of six gates to allow the switch to operate at a low control voltage without the need to increase device periphery or die size. Feed-forward capacitors connected between the gate and source of an uppermost FET and the gate and drain of a lowermost FET are used to reduce signal distortion and improve the linearity and harmonic noise rejection characteristics of the FETs within the switch and thus lower the harmonics of the switch.

Abstract: The new grape cultivar ‘90-3618’ can best be characterized as a large, productive, seedless, dark table grape with excellent quality for handling abilities. The berries of the new cultivar are sweet and firm with very strong attachment and almost no shatter at commercial maturity. The berries reach full maturity in early to mid-September.