Abstract: Re-usage of part of object or object is highly important in manufacturing industry as it can drastically reduce cost and time spent on manufacturing. However, lack of proper information about availability of similar parts leads to redesigning of similar part. Existing databases for engineering drawings do not store categorized information due to which performing feature-based search is not possible. Present application provides systems and methods for extracting, digitizing, and using engineering drawing data. The system receives engineering drawing document and extracts text data present in each cell of table provided in document. Once table data is extracted, isometric views and views other than isometric views that are present in document are identified by the system using pretrained machine learning based model. The system further extract view labels and coordinate information from identified views.

Abstract: Re-usage of part of object or object is highly important in manufacturing industry as it can drastically reduce cost and time spent on manufacturing. However, lack of proper information about availability of similar parts leads to redesigning of similar part. Existing databases for engineering drawings do not store categorized information due to which performing feature-based search is not possible. Present application provides systems and methods for extracting, digitizing, and using engineering drawing data. The system receives engineering drawing document and extracts text data present in each cell of table provided in document. Once table data is extracted, isometric views and views other than isometric views that are present in document are identified by the system using pretrained machine learning based model. The system further extract view labels and coordinate information from identified views.

Abstract: A system and method for automatically adjusting electrical performance of a radio frequency (RF) coil assembly of a magnetic resonance imaging (MRI) system during a medical imaging process of a subject to control changes in loading conditions of the RF coil caused by the subject during the medical imaging process.

Abstract: Systems and methods for beamforming algorithms for transmit-receive parallel magnetic resonance imaging (“pMRI”) applications are described. For any transmit configuration (e.g., using a single or multiple transmit elements) a weighted sum of the complex image data from each receiver is formed with a spatially-varying weighting. The weighting factor is obtained by solving an optimal refocusing problem at a set of points in the image space, which can include all the pixels in the image. The optimal refocusing of the transmit-receive configuration accounts for the spatially-varying SNR in deriving the coefficients of the weighted sum at every image pixel.

Abstract: In some embodiments, an optical coupler comprises a substrate, and first and second optical waveguides positioned on the substrate. The second optical waveguide extends adjacent to and parallel with the first optical waveguide for at least one effective coupling length, the at least one length having a first end and a second end. The coupler further comprises a first phase shift section forming a portion of the first optical waveguide and located at a first predetermined distance from the first end of the length, and a second phase shift section forming a portion of the second optical waveguide and located at a second predetermined distance from the second end of the length, wherein the first predetermined distance is approximately equal to the second predetermined distance, and wherein the second optical waveguide does not have a phase shift section located at the first predetermined distance from the first end of the length.

Abstract: Various methods and systems for using email to convey backup and restore data are disclosed. One method involves: receiving a request to perform a backup system operation; generating an email that includes data and metadata (which is associated with the data); and sending the email to an email address associated with a backup system component. The request can be a backup request, in which case the data includes data to be backed up, and the backup system component is a backup server. Alternatively, the request can be receiving a restore request. In this scenario, the data includes data to be restored, and the backup system component is a backup client.

Abstract: A system and method for automatically adjusting electrical performance of a radio frequency (RF) coil assembly of a magnetic resonance imaging (MRI) system during a medical imaging process of a subject to control changes in loading conditions of the RF coil caused by the subject during the medical imaging process.

Abstract: Systems and methods for beamforming algorithms for transmit-receive parallel magnetic resonance imaging (“pMRI”) applications are described. For any transmit configuration (e.g., using a single or multiple transmit elements) a weighted sum of the complex image data from each receiver is formed with a spatially-varying weighting. The weighting factor is obtained by solving an optimal refocusing problem at a set of points in the image space, which can include all the pixels in the image. The optimal refocusing of the transmit-receive configuration accounts for the spatially-varying SNR in deriving the coefficients of the weighted sum at every image pixel.

Abstract: In some embodiments, an optical coupler comprises a substrate, and first and second optical waveguides positioned on the substrate. The second optical waveguide extends adjacent to and parallel with the first optical waveguide for at least one effective coupling length, the at least one length having a first end and a second end. The coupler further comprises a first phase shift section forming a portion of the first optical waveguide and located at a first predetermined distance from the first end of the length, and a second phase shift section forming a portion of the second optical waveguide and located at a second predetermined distance from the second end of the length, wherein the first predetermined distance is approximately equal to the second predetermined distance, and wherein the second optical waveguide does not have a phase shift section located at the first predetermined distance from the first end of the length.

Abstract: Various methods and systems for using email to convey backup and restore data are disclosed. One method involves: receiving a request to perform a backup system operation; generating an email that includes data and metadata (which is associated with the data); and sending the email to an email address associated with a backup system component. The request can be a backup request, in which case the data includes data to be backed up, and the backup system component is a backup server. Alternatively, the request can be receiving a restore request. In this scenario, the data includes data to be restored, and the backup system component is a backup client.

Abstract: Various methods and systems for implementing agents that facilitate end user searches of a backup catalog via a desktop search tool are disclosed. One method involves: receiving a search request from a desktop search tool, which is configured for use by an end user of a backup system; searching a backup catalog, maintained by the backup system, in response to the search request; and providing a result of searching the backup catalog to the desktop search tool.

Abstract: A communication includes an analog input configured to receive an analog signal. An analog to digital converter is configured to provide a digital signal output based upon the analog input. A modulator is configured to modulate a laser based upon the digital signal thereby generating a modulated optical signal. An optical fiber carries the modulated optical signal and an optical detector arranged to receive the modulated optical signal from the optical fiber and provide a received output. A digital to analog converter digitizes the received output and provides an analog output based respective of the analog signal provided to the analog input.

Abstract: A magnetic resonance system is disclosed. The system includes a transceiver having a multichannel receiver and a multichannel transmitter, where each channel of the transmitter is configured for independent selection of frequency, phase, time, space, and magnitude, and each channel of the receiver is configured for independent selection of space, time, frequency, phase and gain. The system also includes a magnetic resonance coil having a plurality of current elements, with each element coupled in one to one relation with a channel of the receiver and a channel of the transmitter. The system further includes a processor coupled to the transceiver, such that the processor is configured to execute instructions to control a current in each element and to perform a non-linear algorithm to shim the coil.

Abstract: A communication includes an analog input configured to receive an analog signal. An analog to digital converter configured to provides a digital signal output based upon the analog input. A modulator is configured to modulate a laser based upon the digital signal thereby generating a modulated optical signal. An optical fiber carries the modulated optical signal and an optical detector arranged to receive the modulated optical signal from the optical fiber and provide a received output. A digital to analog converter digitizes the received output and provides an analog output based respective of the analog signal provided to the analog input.

Abstract: Technology for controlling non-uniformity in the B1 field includes selecting the phase, magnitude, frequency, time, or spatial relationship among various elements of a multi-channel excitation coil in order to control the radio frequency (RF) power emanating from the coil antenna elements. Non-uniformity can be used to steer a constructively interfering B1 field node to spatially correlate with an anatomic region of interest. A convex (quadratically constrained quadratic problem) formulation of the B1 localization problem can be used to select parameters for exciting the coil. Localization can be used in simulated Finite Difference Time Domain B1 field human head distributions and human head phantom measurement.

Abstract: This document discloses, among other things, multi-channel magnetic resonance using a TEM coil.

Abstract: Technology for controlling non-uniformity in the B1 field includes selecting the phase, magnitude, frequency, time, or spatial relationship among various elements of a multi-channel excitation coil in order to control the radio frequency (RF) power emanating from the coil antenna elements. Non-uniformity can be used to steer a constructively interfering B1 field node to spatially correlate with an anatomic region of interest. A convex (quadratically constrained quadratic problem) formulation of the B1 localization problem can be used to select parameters for exciting the coil. Localization can be used in simulated Finite Difference Time Domain B1 field human head distributions and human head phantom measurement.

Abstract: A optical coupler is formed on a substrate and includes a first and elongate optical waveguides. Variable coupling is provided between the first and second elongate optical waveguides. In an optical modulator, a plurality of phase shifts are provided along the waveguides to increase linearity of a response of the modulator.

Abstract: A communication includes an analog input configured to receive an analog signal. An analog to digital converter configured to provides a digital signal output based upon the analog input. A modulator is configured to modulate a laser based upon the digital signal thereby generating a modulated optical signal. An optical fiber carries the modulated optical signal and an optical detector arranged to receive the modulated optical signal from the optical fiber and provide a received output. A digital to analog converter digitizes the received output and provides an analog output based respective of the analog signal provided to the analog input.

Abstract: A magnetic resonance system is disclosed. The system includes a transceiver having a multichannel receiver and a multichannel transmitter, where each channel of the transmitter is configured for independent selection of frequency, phase, time, space, and magnitude, and each channel of the receiver is configured for independent selection of space, time, frequency, phase and gain. The system also includes a magnetic resonance coil having a plurality of current elements, with each element coupled in one to one relation with a channel of the receiver and a channel of the transmitter. The system further includes a processor coupled to the transceiver, such that the processor is configured to execute instructions to control a current in each element and to perform a non-linear algorithm to shim the coil.