Abstract: Effective radio frequency interference (RFI) mitigation techniques are disclosed for use in wireless communication devices, among others. An RFI mitigation circuit may include a selector circuit to select between a cleaned signal and a clipped signal, and provide the selected signal as an output signal. The RFI mitigation circuit may also include a classifier circuit to generate a control input indication to the selector circuit to have the cleaned signal selected as the output signal based at least on a front-end circuit signal indicating that the front-end circuit is operating linearly and also indicating that the front-end circuit signal includes an interference signal. The classifier circuit may also generate the control input indication to have the clipped signal selected as the output signal based at least on the front-end circuit signal indicating that the front-end circuit is not operating linearly.

Abstract: A signal processing device includes a prediction and correction engine configured to receive a signal including a target signal, and to execute a single-moment filter, based on a current measurement sample of the signal and a model of the target signal, to obtain a single-moment state estimate and a single-moment state estimate error covariance for the target signal, a covariance renormalizer configured to determine a multi-moment state estimate error covariance for the target signal based on a prior single-moment state estimate error covariance, corresponding to a sample prior to the current measurement sample, and the single-moment state estimate error covariance, and a multi-moment prediction and correction engine configured to execute a multi-moment filtering extension based on the current measurement sample and the multi-moment state estimate error covariance to obtain a multi-moment state estimate, and further configured to determine an estimate for the target signal based on the multi-moment state esti

Abstract: A signal processing device includes a prediction and correction engine configured to receive a signal including a target signal, and to execute a single-moment filter, based on a current measurement sample of the signal and a model of the target signal, to obtain a single-moment state estimate and a single-moment state estimate error covariance for the target signal, a covariance renormalizer configured to determine a multi-moment state estimate error covariance for the target signal based on a prior single-moment state estimate error covariance, corresponding to a sample prior to the current measurement sample, and the single-moment state estimate error covariance, and a multi-moment prediction and correction engine configured to execute a multi-moment filtering extension based on the current measurement sample and the multi-moment state estimate error covariance to obtain a multi-moment state estimate, and further configured to determine an estimate for the target signal based on the multi-moment state esti

Abstract: Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: presenting first data on a first area of a display, wherein the first data is non-sensitive data; presenting second data on a second area of the display, wherein the second data is sensitive data; wherein the first data is displayed to feature a first viewing angle, and wherein the second data is displayed to feature a second viewing angle, wherein the second viewing angle is narrower than the first viewing angle so that a range of viewing angles from the display at which displayed data is visible is larger for the first data than for the second data.

Abstract: Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: presenting first data on a first area of a display, wherein the first data is non-sensitive data; presenting second data on a second area of the display, wherein the second data is sensitive data; wherein the first data is displayed to feature a first viewing angle, and wherein the second data is displayed to feature a second viewing angle, wherein the second viewing angle is narrower than the first viewing angle so that a range of viewing angles from the display at which displayed data is visible is larger for the first data than for the second data.

Abstract: Described are methods and systems for mitigating radio-frequency interference (RFI) generated by a receiving platform. After downconverting a received RF signal to baseband, the RFI component in the baseband signal may be estimated using a model-based estimator (e.g., a nonlinear filter such as an extended Kalman filter) that is tuned to a statistical model of the RFI source. The estimated RFI component may then be subtracted from the baseband signal to yield a compensated baseband signal from which may be extracted the baseband information signal. This filtering technique enables a highly accurate mitigation of the RFI even when the RFI power is much smaller compared to the Gaussian channel noise.

Abstract: A non-marking web conveyance roller has a generally irregular surface with a plurality of rounded up features that promotes superior venting of entrained air. The surface finish of the roller, formed by a thermal spray process, prevents the formation of impression and honing defects on the conveyed web.

Abstract: A non-marking web conveyance roller has a generally irregular surface with a plurality of rounded up features that promotes superior venting of entrained air. The surface finish of the roller, formed by a thermal spray process, prevents the formation of impression and honing defects on the conveyed web.

Abstract: A coating method and apparatus are taught for coating a liquid composition onto a surface of a moving web. A coating hopper for delivering the liquid composition to the surface of the moving web is provided with a rotatable backing roller. The moving web is wrapped around a portion of the rotatable backing roller with the rotatable backing roller supporting the moving web through a dynamic wetting line. The rotatable backing roller includes a plurality of circumferential grooves therein at a groove pitch of at least two per millimeter. An electrostatic field generated across the gap between the moving web and the liquid composition immediately prior to the dynamic wetting line. The method and apparatus permit either coating at a higher speed or higher viscosity than may be achieved in the prior art, or greatly reduced groove line nonuniformity at a given coating speed and viscosity.

Abstract: A coating method and apparatus are taught for coating a liquid composition onto a surface of a moving web. A coating hopper for delivering the liquid composition to the surface of the moving web is provided with a rotatable backing roller. The moving web is wrapped around a portion of the rotatable backing roller with the rotatable backing roller supporting the moving web through a dynamic wetting line. The rotatable backing roller includes a plurality of circumferential grooves therein at a groove pitch of at least two per millimeter. An electrostatic field generated across the gap between the moving web and the liquid composition immediately prior to the dynamic wetting line. The method and apparatus permit either coating at a higher speed or higher viscosity than may be achieved in the prior art, or greatly reduced groove line nonuniformity at a given coating speed and viscosity.

Abstract: The present invention is related to an improvement in the positioning system for the arm of ore transport car turning equipment which comprises a laser emitter device and a laser detection device, the first one placed on the arm of the car turning equipment, and comprising a collimator, a laser diode, a laser control circuit chip and power cable, while the detector is attached to the appropriate base at an adequate distance from the aforementioned arm.

Abstract: Apparatus for cleaning a surface of a moving web of material, particularly photosensitive web material. A particle transfer roller is disposed adjacent the moving web, and driven to a pre-determined speed approaching but not greater than a sensed speed of the moving web. A passive one-way clutch coupled to the particle transfer roller is engaged, such that when the driven particle transfer roller contacts the moving web, the moving web drives the particle transfer roller. A cleaning station is disposed adjacent the particle transfer roller so as to provide renewal of the particle transfer roller.