Abstract: A system may monitor usage of a cleaning chemical and indicate when the chemical has expired and needs to be replaced. In some examples, the system includes a reservoir containing the chemical and a sensor associated with the reservoir that can detect user interaction with the chemical in the reservoir. The system may track an amount of time until the chemical in the reservoir is deemed to have expired and provide a user alert indicating expiration of the chemical. The system can control the amount of time remaining until the chemical is deemed to have expired based on the detected addition of the object to the reservoir.

Abstract: Carrier aggregation (CA) may cause interference between operation on two or more carriers within a user equipment (UE). This interference can degrade signal quality on one or more of the carriers involved in the carrier aggregation, which may be referred to as “desensing” one or more carriers. One or more isolating buffers may be coupled at a down-conversion mixer at a point where the down-conversion mixer receives a signal from a transmission line for isolating the transmission line from other transmission lines. The isolating buffer may reduce the effect of interference between multiple transmission lines carrying different carriers during carrier aggregation (CA) operation. The isolating buffers may be used in an RF transceiver supporting both 5G sub-7 GHz and 5G mmWave wireless networks and carrier aggregation across sub-7 GHz and mmWave bands.

Abstract: In some embodiments, a system for non-destructively testing an object may include a probe. The probe may include a body including a shoe, at least one magnetostrictive sensor assembly supported by the shoe, at least one coupling device of a first type supported by the body, and at least one coupling device of a second type supported by the body. The at least one coupling device of the first type may be configured to provide a first force for coupling the probe to the object. The at least one coupling device of a second type may be configured to provide a second force for coupling the at least one magnetostrictive sensor assembly to the object. In some embodiments, the system may include a pulser/receiver unit configured to be communicatively coupled to the at least one magnetostrictive sensor assembly.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support reconfiguring degeneration components in a converged RF transceiver supporting carrier aggregation across sub-6 GHz frequency bands and mmWave frequency bands. In a first aspect, an apparatus includes an input port configured to receive a mixer input signal; a first mixer forming at least a portion of an HRM mixer and coupled to the input port; a first configurable degeneration component of a first processing path coupled between the input port and the first mixer; and a controller coupled to the first degeneration component, wherein the controller is configured to control a first aspect of a first degeneration component. Other aspects and features are also claimed and described.

Abstract: Certain aspects of the present disclosure generally relate to techniques and apparatus for operating a wireless receiver of the apparatus in a high linearity mode. An example method includes operating the apparatus in a first mode with transmission of a plurality of transmit signals. The method also includes attenuating a received signal via an attenuator while operating the apparatus in the first mode. The method further includes amplifying the attenuated signal with an amplifier while operating the apparatus in the first mode. For certain aspects, the method further involves operating the apparatus in a second mode, bypassing the attenuator while operating the apparatus in the second mode, and amplifying the received signal with the amplifier while operating the apparatus in the second mode.

Abstract: Magnetic particle actuating systems may include a magnet system configured to generate a magnetic field that includes a field-free region. A corresponding control system can be configured to control the magnet system to create a field-free region at least partially matching a target region. An excitation system can be configured to generate an excitation field to cause actuation of magnetic nanoparticles in an actuation region.

Abstract: Systems and methods of associating components of a surgical instrument for navigation-assisted surgery, and controlling the surgical instruments. A first association is generated between the end effector and the navigation array from an input based on an arrangement of tracking elements of the navigation array, and an identification signal. A second association is generated between a power source and the navigation array from a battery signal wirelessly transmitted from the power source that is indicative of current being drawn on the power source. The power source may be controlled based on a position and/or an orientation of the end effector and a pose of a patient tracker. Should the position of the end effector cross a predefined virtual boundary, a control signal wirelessly transmitted to the power source may alter the current being supplied to a motor. An inertial sensor may provide a movement signal used for generating an association.

Abstract: This disclosure provides systems, methods, and devices for wireless communications that support downconversion in a radio frequency (RF) system. In a first aspect, an apparatus for wireless communications includes a first mixer coupled to an input node; a second mixer coupled to the input node; and a first mixer bias circuit configured to output a first local oscillator (LO) signal, the first mixer bias circuit coupled to the first mixer and to the second mixer to output the first LO signal to the first mixer and to the second mixer. Other aspects and features are also claimed and described.

Abstract: A system and method for efficiently resetting data stored in a memory array are described. In various implementations, an integrated circuit includes a memory for storing data, and a processing unit that generates access requests for the data stored in the memory. When access circuitry of the memory array begins a reset operation, it reduces a power supply voltage level used by memory bit cells in a column of the array to a value less than a threshold voltage of transistors. Therefore, the p-type transistors of the bit cells do not contend with the write driver during a write operation. The access circuitry provides the reset data on the write bit lines, and asserts each of the write word lines of the memory array. To complete the write operation, the access circuitry returns the power supply voltage level from below the threshold voltage level to an operating voltage level.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support reconfiguring degeneration components in a converged RF transceiver supporting carrier aggregation across sub-6 GHz frequency bands and mmWave frequency bands. In a first aspect, an apparatus includes an input port configured to receive a mixer input signal; a first mixer forming at least a portion of an HRM mixer and coupled to the input port; a first configurable degeneration component of a first processing path coupled between the input port and the first mixer; and a controller coupled to the first degeneration component, wherein the controller is configured to control a first aspect of a first degeneration component. Other aspects and features are also claimed and described.

Abstract: Magnetic particle actuating systems may include a magnet system configured to generate a magnetic field that includes a field-free region. A corresponding control system can be configured to control the magnet system to create a field-free region at least partially matching a target region. An excitation system can be configured to generate an excitation field to cause actuation of magnetic nanoparticles in an actuation region.

Abstract: In non-limiting examples of the present disclosure, systems, methods and devices for enabling real-time gestures on shared canvases are presented. A shared object service may be associated with a plurality of shared objects. A plurality of user accounts and/or client devices may be granted access to a shared object. Each client device that accesses the shared object may store a distributed data structure locally that corresponds to the shared object. When client devices perform operations associated with the shared object the operations are logged by the shared object service and timestamped. Those operations are then reported to the client devices, where cursor movements can be rendered in real time. If cursor movements and/or user input device operations associated with a cursor meet conditions for a gesture operation the cursor may be transformed to a gesture/animation and rendered on canvases of each connected client device.

Abstract: This disclosure describes techniques for identifying an application (e.g., accessing application) that is attempting to access a resource. In some examples, access may be managed by an authentication service. When an access request is received at the authentication service from an application on a client device, the authentication service may ask the application to communicate with an identification agent on the client device. The identification agent may perform one or more tests to discover the identity of the application. In some cases, the identification agent may send the identity of the application to the authentication service. The authentication service may then allow or deny access by the accessing application to the resource based at least in part on the discovered identity.

Abstract: Embodiments of this disclosure may include a receiver with a reconfigurable processing path for different signal conditions. Such a receiver may reconfigure between a mixer-first configuration and an amplifier-first configuration. In the mixer-first configuration, an RF input signal is not passed through an LNA for amplification before processing the RF input signal for downconversion to baseband and eventual extraction of the information in the signal. In the amplifier-first configuration, an RF input signal is passed through an LNA for amplification before processing the RF input signal for downconversion to baseband and eventual extraction of the information in the signal. Reconfiguring the receiver between mixer-first and amplifier-first configurations may be performed based on detection of jammer signals and/or measurement of signal-to-noise ratio (SNR).

Abstract: A fenestration unit includes a fenestration frame with a first frame member, and a sash including a sash frame to support a glazing unit. The fenestration unit includes a channel defined in one of the first frame member and the sash frame that extends along a first axis. The fenestration unit includes a retainer base associated with the other of the first frame member and the sash frame that extends along the first axis. The fenestration unit includes a retainer removably coupled to the first frame member and the sash frame to removably retain the sash frame on the fenestration frame. The retainer has a first retainer arm, a second retainer arm and a third retainer arm. The third retainer arm is movably coupled to the channel and the first retainer arm is movably coupled to the retainer base.

Abstract: A device to strengthen a person's arm muscles through the utilization of a portable device including a handle portion and a weight component with the two components separated by a flexible rod is provided. Such a device allows for the user to grip the handle portion and act as if they are throwing such a handle portion while the weight end moves along an arc defined through the length of the flexible rod. The resultant action is the generation of centripetal force along the defined arc with the reactive centrifugal force providing resistance to the user's arm muscles in a manner that is unique and heretofore unattainable through the utilization of a portable exercise device. The flexible rod component provides at least 1 foot (100 cm) of spacing between the handle portion and the weight portion.

Abstract: Carrier aggregation (CA) may cause interference between operation on two or more carriers within a user equipment (UE). This interference can degrade signal quality on one or more of the carriers involved in the carrier aggregation, which may be referred to as “desensing” one or more carriers. One or more isolating buffers may be coupled at a down-conversion mixer at a point where the down-conversion mixer receives a signal from a transmission line for isolating the transmission line from other transmission lines. The isolating buffer may reduce the effect of interference between multiple transmission lines carrying different carriers during carrier aggregation (CA) operation. The isolating buffers may be used in an RF transceiver supporting both 5G sub-7 GHz and 5G mmWave wireless networks and carrier aggregation across sub-7 GHz and mmWave bands.

Abstract: A method includes, during a delivery process of an unmanned aerial vehicle (UAV), receiving, by an image processing system, a depth image captured by a downward-facing stereo camera on the UAV. One or more pixels are within a sample area of the depth image and are associated with corresponding depth values indicative of distances of one or more objects to the downward-facing stereo camera. The method also includes determining, by the image processing system an estimated depth value representative of depth values within the sample area. The method further includes determining that the estimated depth value is below a trigger depth.

Abstract: The disclosure provides methods of treating a patient having primary hyperoxaluria or idiopathic hyperoxaluria comprising administering a therapeutically effective amount of compound of the formula and pharmaceutically acceptable salts, solvates, and hydrates thereof to the patient. The variables, e.g. ring A, n, R, R3, R10, X, Y, and Z are defined herein. These compounds act as lactate dehydrogenase inhibitors and are useful inhibiting the conversion of glyoxylate to oxalate. When administered to a patient having a disease or disorder associated with elevated oxalate levels, such as PH type 1, type 2, or type 3 or idiopathic hyperoxaluria the compounds prevent or substantially reduce the amount and buildup of oxalate the patient's kidneys, bladder, urinary tract and other parts of the patient's body.