Abstract: System and methods for a digital linearization of a non linear element. Digital predistortion methods and circuitry for linearizing a non-linear element that address long or “memory” effects and shorter duration effects, these two predistortion functions are operated together in an adaptive fashion with the non-linear element to provide a highly linear system. A short duration predistortion block comprises an Nth order polynomial filter coupled to a programmable linear equalizer. The Nth order filter includes programmable non-linearities and variable delay taps. The Nth order filter may be configured to implement a non-sequential or a sequential ordered polynomial. The equalizer may, in a preferred embodiment, include circuitry for equalizing imbalances between real and complex signal values. The Nth order filter may implement a compound Volterra filter. The combined system of the predistortion circuitry and a non-linear element has a linear input-output signal response.

Abstract: Digital predistortion system, methods and circuitry for linearizing a non-linear element using a multiply partitioned architecture that first addresses long or “memory” effects, and separately addresses shorter duration effects. These blocks or circuits are operated with the non-linear element to provide a highly linear system. A first or long predistortion block receives a baseband signal input and includes a plurality of parallel memory blocks each including a programmable linearity, a digital filter, summers, multipliers and multiplexers with control signals for configuring the blocks to form filters of different types. A second or short predistortion block is coupled to the long predistortion block and comprises a generalized Nth order polynomial filter coupled to a programmable linear equalizer. The first predistorter block compensates for effects of a longer duration, and the second predistorter block compensates for effects of a shorter duration.

Abstract: System and methods for a digital linearization of a non-linear element. Preferred embodiments provide digital predistortion methods and circuitry that addresses long or “memory” effects and separately shorter duration effects, these two predistortion functions are operated together in an adaptive fashion with a non-linear element to provide a highly linear system. A long predistortion block comprises a plurality of configurable parallel coupled memory blocks, each further comprising a programmable nonlinearity, variable delays, digital filters, and signal combiners. These parallel blocks are selectively configured to provide a parallel filter, a Hammerstein filter and a compound Volterra filter. The parallel coupled memory blocks include programmable parameters that enable real time adaptation of the predistortion; the delay elements also include variable delays. The combined system of the predistortion circuitry and a non-linear element has a linear input-output signal response.

Abstract: An apparatus providing additional response for a distortion correcting device that receives a first signal at a correcting input and provides a first delayed output signal at an output includes: (a) A first signal combiner coupled with an input and the correcting input. (b) A delay unit coupled with the input provides a second delayed signal to a delayed signal terminal. (c) A second signal combiner coupled with the delayed signal terminal and the output employs the output signal and the second delayed signal to present an error signal at a first error terminal. (d) An adaptive circuit coupled with the input locus, the first signal combiner and the second signal combiner employs provides a supplemental signal to the first signal combiner which employs the input signal and the supplemental signal to present the first signal to reduce the error signal.

Abstract: One embodiment of the invention includes an amplifier system. The system comprises a digital predistortion (DPD) system configured to receive an input signal and to provide the input signal as a first digital signal component along a first amplifier path and a second digital signal component along a second amplifier path. The system also comprises a first digital-to-analog converter (DAC) configured to convert the first digital signal component to a first analog signal component and a second DAC configured to convert the second digital signal component to a second analog signal component. The system further comprises a Doherty amplifier comprising a main amplifier in the first amplifier path that is configured to amplify the first analog signal component and a peak amplifier in the second amplifier path that is configured to amplify the second analog signal component.

Abstract: An adjustable aperture apparatus on a bulk material transfer chute that transfers a flow of bulk material from a discharge conveyor to a separate receiving conveyor is automatically closed when no bulk material is being transferred by the transfer chute from the discharge conveyor to the receiving conveyor. With the apparatus being closed, any residual dust from the bulk material remaining on the discharge conveyor is collected on the closed apparatus and primarily contained in the bulk material transfer chute. When bulk material is again conveyed on the discharge conveyor to the bulk material transfer chute, the conveyed bulk material is deposited on the closed aperture apparatus and the weight of the material causes the apparatus to automatically move to an opened condition, allowing the transfer of the collected dust with the bulk material supplied to the bulk material transfer chute to the receiving conveyor.

Abstract: System and method for preprocessing a signal for transmission by a power amplifier. In a preferred embodiment a multiple input multiple output processor is coupled to a plurality of power amplifiers for transmitting a signal, where the number of power amplifiers exceeds the number of antennas. The multiple input multiple output processor performs an algorithm to optimize the output vector ensuring that the transmit power for any one amplifier is below a predetermined threshold. In a preferred embodiment a Remez optimization algorithm is performed. Alternative optimization algorithms may be used. In a preferred embodiment the processor is a single integrated circuit. A method is disclosed where a multiple output vector is produced for transmission, using an optimization algorithm to produce an output vector that ensures that for any of the power amplifiers, the transmit power is maintained below a predetermined threshold.

Abstract: A bulk material precision transfer chute apparatus transfers a flow of material from a discharge conveyor to a separate receiving conveyor. The apparatus receives a flow of material from the discharge conveyor and transfers that material to a receiving conveyor depositing the material in a precise manner that avoids spillage of the material from the receiving conveyor, avoids wear to the receiving conveyor, and avoids excess dust generation from the transfer of the material.

Abstract: Apparatus and methods for use are disclosed for coordinating a hole of one part with a hole of another part. The apparatus may include a base member, a pin member defined by a slot having a first length in one direction which is greater than a second length in a second direction, and an index member extending beyond an end of the base member. The index member may be adapted to position the first length of the slot in a position parallel to a datum of a part being joined by the apparatus. During operation, a portion of the pin member may be inserted in a hole of one part. The slot may be at least partially aligned with a second, smaller hole in another part.

Abstract: A bulk material precision transfer chute apparatus transfers a flow of material from a discharge conveyor to a separate receiving conveyor. The apparatus receives a flow of material from the discharge conveyor and transfers that material to a receiving conveyor depositing the material in a precise manner that avoids spillage of the material from the receiving conveyor, avoids wear to the receiving conveyor, and avoids excess dust generation from the transfer of the material.

Abstract: A system for identifying events includes a memory capable of storing a compressed event table including a number of events, the event table having been compressed by reducing the number of events in the event table without reducing the number of events represented by the event table. Each event of the event table includes a set of state parameters, and may also be associated with an output. The system also includes a processor capable of operating a fast state recognition (FSR) application. The FSR application, in turn, can receive a plurality of inputs, and identify an event of the compressed event table based upon the plurality of inputs and the state parameters of the compressed event table, event being identified in accordance with a state recognition technique.

Abstract: The invention provides a method for business to business communication among trading partners that use differing business rules and processes. A trading partner server provides a center for communication between the trading partners enforcing the business rules and enabling the trading partners to communicate effectively. Legally binding and non-legally binding agreements necessary to support a business discourse are handled electronically through the trading partner server.

Abstract: Photoacid generator salts comprising photoactive cationic moieties and segmented, highly fluorinated-hydrocarbon anionic moieties are disclosed which provide high photoacid strength and can be tailored for solubility and polarity. The present invention further relates to photoacid generators as they are used in photoinitiated acid-catalyzed processes for uses such as photoresists for microlithography and photopolymerization.

Abstract: A laser-guided coordination hole tool for precisely drilling holes in large parts includes a positioning table, a bushing cavity for receiving drill bushings, a clamping device, and a laser target. A laser-guided coordination hole tool may include a software interlock to prevent drilling in an improper location on the part. A method of drilling coordination holes includes probing a part to determine its reference frame, rigidly affixing a laser-guided coordination hole tool to the part, probing a target on the laser-guided coordination hole tool to determine the reference frame for the laser-guided coordination hole tool, accurately positioning a drill bushing over the hole location, and drilling a hole. A system for drilling coordination holes includes a laser-guided coordination hole tool, a bushing, a tooling, a drill motor, a laser tracker, and a computer running a coordination-hole drilling program.

Abstract: Coating compositions are described that can be used to impart hydrophobicity, oleophobicity, stain resistance, or combinations thereof to various substrates. The coating compositions include an amino resin and a reactive fluorinated copolymer. The reactive fluorinated copolymer ha's pendant perfluoropolyether groups as well as pendant groups capable of reacting with the amino resin. The pendant perfluoropolyether groups of the reactive fluorinated copolymer have a molecular weight of at least 750 g/mole. Articles and methods of preparing articles using the coating compositions are also described.

Abstract: The invention provides a method and system for collaborative planning among multiple collaborators and multiple trading partners, in which individual collaborators and individual trading partners can both make use of global information regarding parties using the system, while still being able to maintain secure and separate information regarding how those individual parties treat their counterparts. The system includes a many-to-many hub at which multiple collaborators and multiple trading partners can exchange information, the hub including a global database having public information about those multiple collaborators and multiple trading partners; the system also includes within the hub a set of private databases having secure and separate information for individual collaborators or individual trading partners.

Abstract: Systems and methods for use in a B2B communication or integration environment, operating using a web browser to access systems protected by an enterprise network firewall, to transfer files in a manner that is reliable, restartable, and secure. After assuring the transfer is allowed, a web browser sends a signed applet to a file transfer client, which makes an out-of-band connection to a file transfer server. The file transfer client and file transfer server interact using a bi-directional protocol suited to file transfer operations. The techniques are applicable to transferring relatively large files, for example in excess of 1 Gigabyte, and relatively smaller files in network environments that are relatively less reliable.

Abstract: Methods and systems with which manufacturers can review reliable information about supply conditions including multiple supplier tiers, and maintain order collaboration for an extended supply chain.

Abstract: A system and method for deploying a hardware configuration with a computer program. The program may perform an instrumentation, measurement/control, industrial automation, or machine vision function, or other type of function utilizing hardware devices, and the behavior of the program may depend on various aspects of the hardware configuration of the computer system. An installation bundle that includes configuration information related to the hardware devices with which the program interacts may be automatically created and used to deploy the program on a new computer system. The installation bundle may include program instructions operable to install the program on the new computer system and automatically modify the hardware configuration of the new computer system so that the program will execute correctly.

Abstract: Shaving systems are designed to provide greater uniformity to shaving forces over the skin-engaging portion of a skin-engaging element, such as a blade, guard element or cap member.