Abstract: Techniques are disclosed for performing optical character recognition (OCR) by assessing and improving quality of electronic documents to perform the OCR. For example a method for identifying information in an electronic document includes obtaining a reference image of the electronic document, distorting the reference image by adjusting different sets of one or more parameters associated with a quality of the reference image to generate a plurality of distorted images, analyzing each distorted image to detect the adjusted set of parameters and corresponding adjusted values, determining an accuracy of detection of the set of parameters and the adjusted values, and training a model based at least on the plurality of distorted images and the accuracy of the detection, wherein the trained model determines at least a first technique for adjusting a set of parameters in a second image to prepare the second image for optical character recognition.

Abstract: A system and device for welding training. In one example, a welding training system includes a position detecting system configured to detect a distance between the position detecting system and objects within a field of view of the position detecting system, and to produce a map corresponding to the objects. The welding training system also includes a markers configured to be coupled to a device of the welding training system. Furthermore, the markers are configured to be detected by the position detecting system.

Abstract: Dynamic range extension of a base station. In one instance, the base station includes a base station modem having a modulator-demodulator, a clock buffer providing an advanced time signal to the modulator-demodulator, a receiver buffer coupled between the modulator-demodulator and a transceiver, a transmitter buffer coupled between the modulator-demodulator and the transceiver, and an electronic processor. The electronic processor is configured to determine a first amount by which to modify a range of a service region of the base station. The electronic processor is also configured to introduce a first delay in the receiver buffer corresponding to the first amount and introduce a second delay in the transmitter buffer corresponding to the first amount.

Abstract: Welding headwear comprises a display operable to present images for viewing by a wearer of the welding headwear, and comprises circuitry operable to determine an identifier associated with a workpiece, retrieve, from memory, welding work instructions associated with the identifier, and generate the images for presentation on the display based on said work instructions.

Abstract: A tillage machine includes a main frame, a gang rotatably coupled to the main frame, and an arcuately-shaped adjustment rail coupled to the main frame. At least a portion of the adjustment rail is spaced from the main frame. The adjustment rail includes a plurality of apertures each configured to receive a locking structure, and the adjustment rail defines an open space adjacent the main frame.

Abstract: Techniques are disclosed to identify a form document in an image using a digital fingerprint of the form document. To do so, the image is evaluated to detect features of the image. For each feature, a pixel is plotted in a second image. The second image is the digital fingerprint of the form. To identify the form corresponding to the digital fingerprint, the digital fingerprint may be compared to digital fingerprints of known forms.

Abstract: A method and apparatus for implementing customized printed circuit board (PCB) via creation through use of magnetic capture pads. At least one magnetic capture pad is rendered before aqueous seed and plate processing in the PCB manufacture. The magnetic capture pad selectively provides seed material rendering copper in at least one selected region of the via.

Abstract: Techniques are disclosed for performing optical character recognition (OCR) by assessing and improving quality of electronic documents to perform the OCR. For example a method for identifying information in an electronic document includes obtaining a reference image of the electronic document, distorting the reference image by adjusting different sets of one or more parameters associated with a quality of the reference image to generate a plurality of distorted images, analyzing each distorted image to detect the adjusted set of parameters and corresponding adjusted values, determining an accuracy of detection of the set of parameters and the adjusted values, and training a model based at least on the plurality of distorted images and the accuracy of the detection, wherein the trained model determines at least a first technique for adjusting a set of parameters in a second image to prepare the second image for optical character recognition.

Abstract: Methods, non-transitory computer-readable storage mediums and systems for classifying features including labels or fields in digital images of forms and identifying any unclassified features utilizing a bitmap approach are provided. Each spatial template includes a set of features and a set of bitmaps, each bitmap indicating a spatial relationship between each feature and respective remaining features in each spatial template. The operations include selecting a spatial template from the spatial templates, classifying each extracted feature as one of features in the spatial template. The operations include generating at least one bitmap representing a spatial relationship for each unclassified feature in relation to classified features, comparing the at least one bitmap with each of a set of bitmaps in the selected spatial template, and identifying the at least one unclassified feature as one of features in the spatial template based on a result of the comparison.

Abstract: A method and apparatus are provided for implementing customized printed circuit board (PCB) via creation through use of magnetic capture pads. At least one magnetic capture pad is rendered before aqueous seed and plate processing in the PCB manufacture. The magnetic capture pad selectively provides seed material rendering copper in at least one selected region of the via.

Abstract: A harrow attachment for a tillage implement includes a harrow drawbar mounting at least one rank of harrowing tools. A pivot link pivotally couples the harrow rank to the drawbar so it can trip by pivoting upward toward the drawbar from a home position in which the harrow rank is farthest away from the drawbar. A downforce spring is coupled to the drawbar and in a variable length state when the harrow rank is tripped to apply a return biasing force to the harrow rank. An adjustment mechanism couples the spring to the harrow rank and/or the pivot link in one of a plurality of adjustment locations in each of which the harrow rank is in the home position and the spring is in a fixed length state in which the biasing force is removed.

Abstract: An optical electromagnetic radiation (EM) emitter and receiver are located upon a printed circuit board (PCB) glass security layer. A predetermined reference flux or interference pattern, respectively, is an expected flux or reflection pattern of EM emitted from the EM emitter, transmitted by the glass security layer, and received by the EM receiver. When the PCB is subject to an unauthorized access thereof the optical EM transmitted by glass security layer is altered. An optical monitoring device that monitors the flux or interference pattern of the optical EM received by the EM receiver detects a change in flux or interference pattern, in relation to the reference flux or reference interference pattern, respectively, and passes a tamper signal to one or more computer system devices to respond to the unauthorized access. For example, one or more cryptographic adapter card or computer system functions or secured crypto components may be disabled.

Abstract: A method of fabricating a printed circuit board (PCB) is presented. The PCB includes a glass security layer. The method includes forming the glass security layer upon a PCB wiring layer. The method includes optically attaching an optical electromagnetic radiation (EM) emitter upon the glass security layer. The method includes optically attaching an optical EM receiver upon the glass security layer. The method further includes electrically connecting an optical monitor device to the optical EM receiver.

Abstract: The present disclosure pertains to sample preparation devices useful for affinity capture and purification that include one or more internal structures that comprise a reservoir, a well, a fluid passageway, sorbent particles, and a filter element that blocks passage of the affinity sorbent particles, which sample preparation devices combine the attributes of both dispersive and flow through designs into a single sample preparation device. The present disclosure also pertains to kits that contain and methods that use such sample preparation devices.

Abstract: Techniques for processing push messages are described. When a client device receives a push message, the operating system can activate an operating system level (OS-level) task to process the push message. The OS-level task can launch an application level process to handle the push notification or buffer the push notification based on an assessment of system resources used by processes executing on the client device.

Abstract: A method of detecting contraband about a person using a portable detector apparatus having an elongate housing that supports at least one magnetic sensor, which is arranged to produce a signal indicative of an ambient magnetic field or gradient over a zone of sensitivity which extends away from the housing, the size of the zone large enough to contain the whole body of the person, and a signal processing circuit that receives as an input the signal from the magnetic sensor and which, in response to a change in the signal, produces an alert signal includes setting up the portable detector apparatus in a chosen location, causing the person to pass alongside the housing from outside of the zone of sensitivity into the zone of sensitivity, and monitoring for the issue of an alert by the device which is indicative of the possible presence of contraband.

Abstract: Spunbonded electret webs comprising polylactic acid fibers, in which at least some of the polylactic acid fibers are meltspun, drawn, charged fibers that include charging additive; and, methods of making such fibers and webs.

Abstract: Techniques are disclosed to identify a form document in an image using a digital fingerprint of the form document. To do so, the image is evaluated to detect features of the image. For each feature, a pixel is plotted in a second image. The second image is the digital fingerprint of the form. To identify the form corresponding to the digital fingerprint, the digital fingerprint may be compared to digital fingerprints of known forms.

Abstract: An implement adjusting system having an implement with a plurality of adjustable components, a plurality of input values, at least one controlled system configured to adjust at least one of the plurality of adjustable components, and a controller that receives the plurality of input values, the controller configured to reposition the plurality of adjustable components based on the plurality of input values. Wherein, the plurality of adjustable components are repositionable by the controller based on the input values.

Abstract: A method includes displaying, on a display of a welding torch, a welding parameter in relation to a predetermined threshold range for the welding parameter, a target value for the welding parameter, or some combination thereof as a position of the welding torch changes, an orientation of the welding torch changes, a movement of the welding torch changes, or some combination thereof, to enable a welding operator to perform a welding operation with the welding parameter within the predetermined threshold range, at the target value, or some combination thereof. The welding parameter is associated with the position of the welding torch, the orientation of the welding torch, the movement of the welding torch, or some combination thereof.