Abstract: A method for forming polyurethane foams in a molding apparatus includes a step of directing one or more polyol compositions into a mold. Each of the one or more polyol compositions include a polyol, water, and a catalyst. The method also includes a step of directing an isocyanate composition into the mold to form a foamed polyurethane. The isocyanate composition includes one or more isocyanates. The one or more polyol compositions and the isocyanate composition is combined into a reaction composition. Characteristically, water concentration is in a range from 1.5 to 2 percent of the weight of the total reaction composition and the amount of isocyanate in the reaction composition is in a sufficient amount such that the isocyanate index is from about 83 to 98. A molded component made by the method is also provided.

Abstract: A composition for forming polyurethane foams is provided using epoxidized triglycerides with unopened rings. The composition further includes a polyol, a blowing agent, and a catalyst that catalyzes the reaction of polyols with isocyanates to form polyurethanes. The polyol is a polyoxyalklylene and the epoxidized triglyceride is an epoxidized soybean oil. A method for forming polyurethane foam using the aforementioned composition is also provided.

Abstract: A composition for forming polyurethane foams is provided using epoxidized triglycerides with unopened rings. The composition further includes a polyol, a blowing agent, and a catalyst that catalyzes the reaction of polyols with isocyanates to form polyurethanes. The polyol is a polyoxyalklylene and the epoxidized triglyceride is an epoxidized soybean oil. A method for forming polyurethane foam using the aforementioned composition is also provided.

Abstract: An interface is provided between a transducer and audio processing circuitry. The interface has a switching device coupled to the transducer. The interface also has a first signal path that is selectively coupled to transducer via the switching device and includes a first output, the first signal path being configured to selectively receive input signals from the transducer, and form a first output signal at the first output by amplifying the input signals to provide a first gain. The first output is coupled to the audio processing circuitry. A second signal path is provided that is selectively coupled to the transducer via the switching device and includes a second output. The second gain is selected to be substantially larger than the first gain. The switching device is configured to switch the input signal between the first signal path and the second signal path.

Abstract: A system and method for performing Electronic Check Presentment (ECP) processing. The system and method employ digital imaging techniques to digitally image the physical checks as they arrive subsequent to posting of the ECP items. The images are electronically linked to the data records that represent the checks. During the proofing process, in which the data records for the ECP items are validated against the data records for the physical items, the records are updated such that the posting date and ISN number for the data records for the physical items reflect the posting date and ISN number of the ECP items. As the digital image of the check is electronically linked to the data records, the image is thus carries the posting date and ISN of the ECP item.

Abstract: An interface is provided between a transducer and audio processing circuitry. The interface has a switching device coupled to the transducer. The interface also has a first signal path that is selectively coupled to transducer via the switching device and includes a first output, the first signal path being configured to selectively receive input signals from the transducer, and form a first output signal at the first output by amplifying the input signals to provide a first gain. The first output is coupled to the audio processing circuitry. A second signal path is provided that is selectively coupled to the transducer via the switching device and includes a second output. The second gain is selected to be substantially larger than the first gain. The switching device is configured to switch the input signal between the first signal path and the second signal path.

Abstract: A system and method for performing Electronic Check Presentment (ECP) processing. The system and method employ digital imaging techniques to digitally image the physical checks as they arrive subsequent to posting of the ECP items. The images are electronically linked to the data records that represent the checks. During the proofing process, in which the data records for the ECP items are validated against the data records for the physical items, the records are updated such that the posting date and ISN number for the data records for the physical items reflect the posting date and ISN number of the ECP items. As the digital image of the check is electronically linked to the data records, the image is thus carries the posting date and ISN of the ECP item.

Abstract: A system and method for performing Electronic Check Presentment (ECP) processing. The system and method employ digital imaging techniques to digitally image the physical checks as they arrive subsequent to posting of the ECP items. The images are electronically linked to the data records that represent the checks. During the proofing process, in which the data records for the ECP items are validated against the data records for the physical items, the records are updated such that the posting date and ISN number for the data records for the physical items reflect the posting date and ISN number of the ECP items. As the digital image of the check is electronically linked to the data records, the image is thus carries the posting date and ISN of the ECP item.

Abstract: In a digital preprocessing system for processing a digital signal for analog transmission, the digital signal is up-sampled to produce a digital up-sampled signal having signal components in a plurality of Nyquist bands including a first Nyquist band and a plurality of super-Nyquist bands at higher frequencies than the first Nyquist band, wherein the first Nyquist band includes a baseband signal component and a plurality of aliased signal components. Thereafter, one of the plurality of signal components in the first Nyquist band is selected from the digital up-sampled signal.

Abstract: A multi-channel transmitter (200) in accordance with the present invention overcomes the disadvantages of applying adaptive antenna array technology to multi-channel communication systems. The multi-channel transmitter includes a channel processing element (210), a plurality of radio frequency processing elements (206), and an antenna array (102). The channel processing element includes a channel processor adapted to receive a communication signal from a communication network, a splitter (216) coupled to an output of the channel processor for producing a plurality of substantially identical processed digital communication signal outputs. A plurality of gain and phase adjusters (214) in the channel processing element are coupled to the substantially identical processed digital communication signal outputs. An output of each phase and gain adjuster (214) is coupled to a plurality of up-converters (212), which each produce a digital intermediate frequency output.

Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).

Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).

Abstract: A receiver (100), transmitter (200) and transceiver (400) in accordance with the present invention overcome the disadvantages of applying adaptive antenna array technology to multi-channel communication systems. Multi-channel radio frequency (RF) signals received via an adaptive antenna array (102) are converted from an analog form to a digital form prior to splitting and processing to recover communication channels contained therein. A number of digital communication signals are digitally combined into a multi-channel digital signal and converted from the digital form to an analog radio frequency form prior to transmission from the adaptive antenna array.

Abstract: A split frequency band signal digitizer (10) includes a first mixer (18) for translating a split-band signal (200) about a multiple of the sampling frequency. The split-band signal so translated is then communicated to an analog-to-digital converter (26). The digitized signal is then analyzed to recover an original portion of the split-band signal and a second portion of the signal aliased into a single Nyquist band.