Abstract: A communication device includes a donor receiver that receives a first beam of input radio frequency (RF) signals from a base station or a network node. The communication device further includes a service transmitter that transmits a second beam of RF signals in a first radiation pattern to a user equipment (UE). The communication device further includes control circuitry that detects an amount and a direction of echo signals at the donor receiver. The control circuitry applies polarization to the second beam of RF signals transmitted to the UE and calibrates the polarization to minimize the echo signals at the donor receiver. A second radiation pattern is generated for the second beam of RF signals and communicated to the UE based on the calibrated polarization. The communication of the second beam of RF signals in the generated second radiation pattern further reduces the echo signals at the donor receiver.

Abstract: A communication device includes a service transmitter (Tx) configured to transmit a second beam of RF signals in a first radiation pattern to a user equipment (UE). The communication device further includes a control circuitry configured to: detect an amount and direction of echo signals at the donor receiver Rx corresponding to reflected RF signals in an environment surrounding a communication device; determine an installation location for the communication device based on echo signal measurements at one or more different locations; adjust polarization of the second beam of RF signals to minimize the echo signals at the donor receiver Rx based on the echo signal; and generate a second radiation pattern for at least the second beam of RF signals based on the amount and direction of the echo signals in the environment detected at the donor receiver Rx.

Abstract: The present disclosure features an apparatus for identifying molecules, the apparatus including chambers configured to receive a conducting media; a membrane including a pore separating the chambers, a first set of electrodes in the chambers, a first current detector measuring an electrical signal between the first set of electrodes, a second set of electrodes electrically contacting the membrane, a second current detector configured measuring an electrical signal between the second set of electrodes, a plasmonic feature adjacent to the pore of the membrane, a light source configured to emit light onto the plasmonic feature, a light collector to collect the light scattered from the plasmonic feature, and a computing device configured to identify at least one attribute of a molecule that passes through the pore of the membrane.

Abstract: A vehicle high-voltage charging system includes: an inverter connected to a rechargeable battery; a motor connected to the inverter and configured to supply power, which is provided to a neutral point of the motor, to the inverter; a first relay having one end connected to the charging power input terminal and an opposite end; a neutral point capacitor arranged on a by-pass path, wherein a first end of the by-pass path is connected to the neutral point and a charging power input terminal to which DC charging power is adapted to input, and a second end of the by-pass path is connected to the rechargeable battery and the opposite end of the opposite end of the first relay; characterized in that the charging system further comprises a second relay, wherein the in series second relay arranged in the by-pass path and with the neutral point capacitor.

Abstract: A magnetic recording slider test system includes a host to collect test results and initiate concurrent testing of a plurality of magnetic recording sliders. Each of a plurality of first processing units is configured to test at least one element of a respective magnetic recording slider. In one aspect, the plurality of first processing units concurrently tests at least one element of respective magnetic recording sliders. In another aspect, a plurality of first signals is analyzed at respective first processing units, with each of the first signals representing a Direct Current (DC) output from one or more elements of a magnetic recording slider. Results determined from analyzing the first signals are sent to the host. In another aspect, a plurality of second processing units is configured to analyze second signals that each represent an Alternating Current (AC) output from one or more elements of the plurality of magnetic recording sliders.

Abstract: A magnetic recording slider test system includes a host to collect test results and initiate concurrent testing of a plurality of magnetic recording sliders. Each of a plurality of first processing units is configured to test at least one element of a respective magnetic recording slider. In one aspect, the plurality of first processing units concurrently tests at least one element of respective magnetic recording sliders. In another aspect, a plurality of first signals is analyzed at respective first processing units, with each of the first signals representing a Direct Current (DC) output from one or more elements of a magnetic recording slider. Results determined from analyzing the first signals are sent to the host. In another aspect, a plurality of second processing units is configured to analyze second signals that each represent an Alternating Current (AC) output from one or more elements of the plurality of magnetic recording sliders.

Abstract: A method of creating crumples in a monolayer entails contacting a monolayer comprising a two-dimensional material with a thermally contractible polymer, and heating the thermally contractible polymer to contract the polymer and induce buckling of the monolayer, where a plurality of crumples are formed in the monolayer due to the buckling. A device having a crumpled microstructure includes a monolayer comprising a two-dimensional material and including a plurality of crumples.

Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated to provide an LED current therethrough to provide illumination in one of a plurality of colors. The LED system also includes an LED controller configured to activate the plurality of LEDs based on a digital input comprising grayscale data corresponding to activation of the plurality of LEDs and further comprising compensation time data corresponding to an activation pulse-width of each of the plurality of LEDs based on a respective one of the plurality of colors of the respective each one of the plurality of LEDs to maintain a substantially equal activation time of the plurality of LEDs.

Abstract: The patient device, designed for use by patients of reduced cognitive or physical ability, integrates with the network-based portal, designed for use by family members or nursing staff to customize the user experience of the patient. Using the portal the family member pushes user interface customizations as well as content and applications to be run on the patient device. The family member can also control the patient device remotely via the portal. The patient device collects usage data on the set of customizable interface components, and on the pushed content and applications. These data are sent as feedback to the portal, allowing the portal to show the family member which user interface features, content and applications are being used and which are not. Aggregate data collected via the portal generate ranking metrics used to aid in user interface feature selection.

Abstract: A method of creating crumples in a monolayer entails contacting a monolayer comprising a two-dimensional material with a thermally contractible polymer, and heating the thermally contractible polymer to contract the polymer and induce buckling of the monolayer, where a plurality of crumples are formed in the monolayer due to the buckling. A device having a crumpled microstructure includes a monolayer comprising a two-dimensional material and including a plurality of crumples.

Abstract: The patient device, designed for use by patients of reduced cognitive or physical ability, integrates with the network-based portal, designed for use by family members or nursing staff to customize the user experience of the patient. Using the portal the family member pushes user interface customizations as well as content and applications to be run on the patient device. The family member can also control the patient device remotely via the portal. The patient device collects usage data on the set of customizable interface components, and on the pushed content and applications. These data are sent as feedback to the portal, allowing the portal to show the family member which user interface features, content and applications are being used and which are not. Aggregate data collected via the portal generate ranking metrics used to aid in user interface feature selection.

Abstract: In an embodiment, a method includes forming a plurality of time/voltage points from a number of voltage values and from a number of time values, generating serialized data having a predetermined number of bits, comparing the serialized data to a set predetermined voltage to produce analysis data, and capturing the analysis data at a respective time data point of a plurality of time data points. The method may be implemented as part of integrated circuits, electronic assemblies, or systems.

Abstract: A method and system for detecting the negative sequence of three phase grid-connected inverter systems utilizes, for example, computer hardware and/or computer software to remove a direct current component from a direct-axis current feedback for a three phase current of the inverter system to yield a pure alternating current waveform signal. A first low pass filter eliminates high frequency noise from the alternating current waveform signal while passing a negative sequence signal. The filtered signal is rectified to an absolute value, and a second low pass filter flattens the rectified signal to an output signal that is indicative of the magnitude of the negative sequence current.

Abstract: A method and system for detecting the negative sequence of three phase grid-connected inverter systems utilizes, for example, computer hardware and/or computer software to remove a direct current component from a direct-axis current feedback for a three phase current of the inverter system to yield a pure alternating current waveform signal. A first low pass filter eliminates high frequency noise from the alternating current waveform signal while passing a negative sequence signal. The filtered signal is rectified to an absolute value, and a second low pass filter flattens the rectified signal to an output signal that is indicative of the magnitude of the negative sequence current.

Abstract: A system and method for performing image compression using multi-threshold wavelet coding (MTWC) which utilizes a separate initial quantization threshold for each subband generated by the wavelet transform, which substantially reduces the number of insignificant bits generated during the initial quantization steps. Further, the MTWC system chooses the order in which the subbands are encoded according to a preferred rate-distortion tradeoff in order to enhance the image fidelity. Moreover, the MTWC system utilizes a novel quantization sequence order in order to optimize the amount of error energy reduction in significant and refinement maps generated during the quantization step. Thus, the MTWC system provides a better bit rate-distortion tradeoff and performs faster than existing state-of-the-art wavelet coders.

Abstract: An inverter circuit (10) has a plurality of voltage source inverters (VSI) coupled in parallel. Each of the voltage source inverters are coupled to a load (14). A synch signal source (12) generates a square wave from a fundamental operating frequency. The square wave generated by the synch signal source (12) is coupled to each voltage source inverter (VSI). Each voltage source inverter VSI has a timer counter (22), a microprocessor (26), and an inverter (32). The timer counter (22) is preferably a triangle wave generator that corresponds to the time since a rising edge of a synch signal (18) The microprocessor (26) samples the cyclic output signal (24) and determines a phase angle for the voltage source inverter. The phase angle and the voltage magnitude are provided to the inverter (32). The inverter (32) provides an output signal to the load that has the same phase angle as the outputs of the other phase inverters.

Abstract: A method for transmitting phase angle information between inverters in a parallel connected inverter system to synchronize the phase angles of the inverters includes transmitting a common phase angle signal to server inverters. The common phase angle signal is a function of the phase angle of a master inverter. The common phase angle signal is indicative of the absolute phase angle of the master inverter when the phase angle of the master inverter is equal to a phase angle value associated with a new phase cycle. The common phase angle signal is indicative of an incremental phase angle change of the phase angle of the master inverter in a given time period while the phase angle of the master inverter is different from the value associated with a new phase cycle. The server inverters control their phase angles in accordance with the common phase angle signal such that the phase angles of the master inverter and the server inverters are synchronized.

Abstract: A Simulated Custom Wheel suitable for vehicles having elongated studs, that can be removed and inserted without removing the wheel from the axle or requiring the insertion of a ring or plate between the lug nuts and wheel of the vehicle. The decorative wheel cover having a central cut out to clear the lug bolts, is placed against the wheel but not attached. A retainer ring having sufficient openings to clear the number of lugs but not the lug nuts themselves is placed over the wheel lugs and against the lug nuts. The retainer ring and the wheel cover are connected together to form a unitary structure. At least three new nuts are placed on selected wheel lugs extending through the openings on the retainer ring and tightened. A center wheel cover having simulated lugs and lug nuts to match the wheel is placed over the retainer ring and attached to the ring to form a complete wheel cover without the necessity of removing the lug nuts holding the wheel to the vehicle.

Abstract: A Simulated Custom Wheel suitable for automotive wheels or truck wheels is described and which is suitable for use on either Ford wheels of General Motor wheels. A unique retainer ring is placed against a decorative cover which is placed adjacent to the wheel. The ring has a flange rim on the periphery which defines a shoulder portion. The flanged rim is positioned so as to point away from the wheel, and the lug nuts are assembled in the conventional fashion for the Ford wheels. The General Motor wheels use a solid retainer plate against the retainer ring. A universal center hub also having a flanged rim on the periphery defining a shoulder portion is adapted to fricitionally engage the shoulder portion on the retainer ring whereby the center hub is supported and held only by the frictional relationship existing between the shoulder on the retaining ring and the shoulder portion on the center hub.