Abstract: An amplifier circuit has a variable gain amplifier including an input receiving an input signal and an open-conduction output, and an output stage including an input coupled to the open-conduction output of the variable gain amplifier and an output providing an output signal of the amplifier circuit. The variable gain amplifier has a first transistor and second transistor each having a control input receiving the input signal. A third transistor has a control terminal receiving a control signal and a first conduction terminal coupled to a first conduction terminal of the first transistor and a second conduction terminal being a first terminal of the open-conduction output. A fourth transistor has a control terminal receiving the control signal and a first conduction terminal coupled to a first conduction terminal of the second transistor and a second conduction terminal being a second terminal of the open-conduction output.

Abstract: A gesture-recognition (GR) device made to be held or worn by a user includes an electronic processor configured by program instructions in memory to recognize a gesture. The device or a cooperating system may match a gesture identifier to an action identifier for one or more target devices in a user's environment, enabling control of the target devices by user movement of the GR device in three-dimensional space.

Abstract: Apparatuses, systems, and methods comprising acoustically absorptive air ducts comprising an internally positioned structure component as an endoskeleton and an air impervious inner layer, and an acoustically absorptive foam outer layer, environmental control systems comprising such air ducts, and vehicles incorporating such environmental control systems are disclosed with methods for manufacture and installations are disclosed.

Abstract: Roofing materials and related methods are provided. A roofing material comprises a first layer, and a second layer on the first layer. The first layer comprises a first thermoplastic polymer. The first layer has a first color. The second layer comprises a second thermoplastic polymer. The second layer has a second color. The second layer comprises a plurality of openings or a plurality of thermoplastic polymer pieces. The first layer is exposed through the second layer.

Abstract: The present disclosure describes ultrasound systems configured to enhance flow imaging and analysis by adaptively adjusting one or more imaging parameters in response to acquired flow measurements. Example systems can include an ultrasound transducer and one or more processors. Using the system components, mean flow velocity magnitude and acceleration can be determined within a target region during an acquisition phase, which may include a cardiac cycle. One or more adjusted flow imaging parameters, such as adjusted ensemble length, temporal smoothing filter length and/or step size, can be determined based on the acquired flow measurements to increase the signal quality of newly acquired ultrasound echo signals. The adjusted flow imaging parameters can then be applied by the ultrasound transducer during a second acquisition phase.

Abstract: Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a spiral configuration such that a plurality of protrusions is disposed in an overlapping portion of the sheath. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during application of a radial outward force by passage of a medical device through the sheath.

Abstract: A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.

Abstract: Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a spiral configuration at least a portion of the outer surface of the sheet comprises a plurality of bonding sites that are at least partially embedded within the sheet and disposed such that the outer surface of the sheet in the overlapping portion is substantially free of the plurality of bonding sites.

Abstract: Various systems, devices, and methods are described herein pertaining to expandable sheaths. Sheath aspects are described that include a flexible sheath tip that is expandable and bendable. In some aspects, the sheath includes a radially expandable proximal end and a radially expandable distal end. In some aspects, the sheath tip includes a plurality of layers that expand to accept a medical device traveling axially and bi-directionally therethrough with minimal deformation of the sheath tip.

Abstract: Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a helical scroll slidable configuration. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during the application of a radial outward force by passage of a medical device through the sheath.

Abstract: Systems and methods for joint document signing are described. According to one aspect, a method for joint document signing includes establishing a live communication session including a plurality of users. In some cases, the plurality of users correspond to a set of signers of a document. The method further includes initiating a signing process during the live communication session, receiving a signature for the document from each of the plurality of users during the live communication session based on the signing process, and generating a signed document including the signature from each of the plurality of users.

Abstract: Features described herein generally relate to systems and methods for generating and managing tokens for authenticated assets. In some aspects, generating a token is performed according to one or more rules and includes generating metadata that links the token to a representation of an asset. In some other aspects, tracking token access includes monitoring a blockchain for token access events and generating a token based on a modified historian and received feedback. In other aspects, validating a token for an authenticated asset includes matching representations of the authenticated asset.

Abstract: A system and method for authenticating direct network print jobs includes registering users for direct printing with a cloud print server. Registration information is stored as a mapping record includes a user name, their computer name and an email address associated with their cloud storage account. When a user sends a print job directly to an MFP at its network address, the MFP checks with the cloud server to determine if the user is registered in accordance with their associated mapping record. If so, a permissions list for that user is checked to determine whether the user has print permission. The user's direct print is then released and their document is printed.

Abstract: An unmanned aerial vehicle comprises a central body; at least one rotor motor configured to drive at least one propeller to rotate, rotation of the at least one propeller generating thrust and causing the unmanned aerial vehicle to fly; and an integrated micro hybrid generator system configured to provide power to the at least one rotor motor. The integrated micro hybrid generator system includes an engine configured to generate mechanical energy, and a generator motor directly coupled to the engine and configured to generate AC power using the mechanical energy generated by the engine.

Abstract: Systems and methods for registering arbitrary visual features for use as fiducial elements are disclosed. An example method includes aligning a geometric reference object and a visual feature and capturing an image of the reference object and feature. The method also includes identifying, in the image of the object and the visual feature, a set of at least four non-colinear feature points in the visual feature. The method also includes deriving, from the image, a coordinate system using the geometric object. The method also comprises providing a set of measures to each of the points in the set of at least four non-colinear feature points using the coordinate system. The measures can then be saved in a memory to represent the registered visual feature and serve as the basis for using the registered visual feature as a fiducial element.

Abstract: Example implementations described herein are directed to systems and methods for managing internet protocol (IP) address assignment to servers on rack(s) based on their physical locations within the rack(s). Through the example implementations, the physical location of a server within a data center rack can be determined based on the IP address. Example implementations can involve issuing a ping local to determine a plurality of servers; retrieving power on time, current system time, and operating system (OS) uptime for each of the plurality of servers; determining a power on order for the plurality of servers; determining physical locations of the plurality of servers within one or more racks based on installation instructions and power on order; and assigning IP addresses to the plurality of servers based on the physical locations.

Abstract: Example implementations described herein are directed to systems and methods for managing internet protocol (IP) address assignment to servers on rack(s) based on their physical locations within the rack(s). Through the example implementations, the physical location of a server within a data center rack can be determined based on the IP address. Example implementations can involve issuing a ping local to determine a plurality of servers; retrieving power on time, current system time, and operating system (OS) uptime for each of the plurality of servers; determining a power on order for the plurality of servers; determining physical locations of the plurality of servers within one or more racks based on installation instructions and power on order; and assigning IP addresses to the plurality of servers based on the physical locations.

Abstract: Example implementations described herein are directed to systems and methods for managing internet protocol (IP) address assignment to servers on rack(s) based on their physical locations within the rack(s). Through the example implementations, the physical location of a server within a data center rack can be determined based on the IP address. Example implementations can involve issuing a ping local to determine a plurality of servers; retrieving power on time, current system time, and operating system (OS) uptime for each of the plurality of servers; determining a power on order for the plurality of servers; determining physical locations of the plurality of servers within one or more racks based on installation instructions and power on order; and assigning IP addresses to the plurality of servers based on the physical locations.