Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: A wideband RF attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high RF frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. In an alternative embodiment, extension to even higher frequencies can be achieved by utilizing a quarter-wave transmission line element at the signal interfaces of each signal path, thereby improving insertion loss and power handling.

Abstract: A context aware clipping mask is described. Context aware clipping masks may provide an automated approach for creating clipping sets that generate aesthetically pleasing photo texts. In at least some implementations, an input image is analyzed to generate an image saliency map and an image gradient map. A plurality of image rects of varying sizes and aspect ratios are generated on a grid over the input image. A score is assigned to each image rect, incorporating a visual composition, a boundary simplicity based on the image gradient map, and a content preservation based on the image saliency map. An image rect with the highest score is selected and utilized to create a photo text from the input image.

Abstract: The de-Qing loss and phase imbalance caused by the inherent capacitance of a switched resistance, such as a MOSFET with a resistor, can be reduced by using a shunting switch across the resistor that is in series with the resistor's switch. The shunting switch shorts across the resistor when the resistor's switch is open and in reference mode, thereby significantly reducing the resistance in series with the inherent capacitance of the open resistor's switch.

Abstract: Methods and systems for dynamically surfacing user interface controls in a workflow. In particular, one or more embodiments determine which steps of a workflow to display with the workflow. One or more embodiments assign weights or scores to each step of the workflow based on whether the step is a required step or an optional step. One or more embodiments use the assigned weights to determine which steps to display with the workflow in a graphical user interface based on whether the assigned weights meet a predetermined threshold. Additionally, one or more embodiments track user interactions with commands in the client application and increase weights of steps associated with the commands to dynamically display steps when the increased weights of the steps meet the predetermined threshold.

Abstract: An integrated circuit (IC) structure for radio frequency (RF) circuits having a multi-point selectably grounded die seal and multi-point selectably grounded signal paths. Embodiments include switch-coupled grounding pads that can selectively electrically couple an internal grounding pad within the die seal of an IC die to a connection point on the die seal and/or on a signal path. When the IC die is embedded in a grounded system, the die seal and/or signal path can be locally grounded at selected connection points, and thus an IC die may be “tuned” to mitigate the effects of parasitic coupling and/or to selective repurpose such parasitic coupling to generate a notch filter effect. Another aspect is selective grounding of inactive signal paths to improve isolation between signal ports.

Abstract: An integrated circuit (IC) structure for radio frequency (RF) circuits having a multi-point selectably grounded die seal and multi-point selectably grounded signal paths. Embodiments include switch-coupled grounding pads that can selectively electrically couple an internal grounding pad within the die seal of an IC die to a connection point on the die seal and/or on a signal path. When the IC die is embedded in a grounded system, the die seal and/or signal path can be locally grounded at selected connection points, and thus an IC die may be “tuned” to mitigate the effects of parasitic coupling and/or to selective repurpose such parasitic coupling to generate a notch filter effect. Another aspect is selective grounding of inactive signal paths to improve isolation between signal ports.

Abstract: A wideband RF attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high RF frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. In an alternative embodiment, extension to even higher frequencies can be achieved by utilizing a quarter-wave transmission line element at the signal interfaces of each signal path, thereby improving insertion loss and power handling.

Abstract: Systems and methods are provided for generating multi-image content for online services using a single image. For example, a processor identifies publishing constraints specified for image categories in a profile of an online service. The processor generates a first image by applying a first publishing constraint to a copy of an input image and generates a second image by applying a second publishing constraint to a selected portion of the first image. The processor presents the first and second images in different preview interfaces. The processor applies manipulation effects to the second image that modify the second image independently of modifications to the first image. The manipulation effect is applied to the second in accordance with the second publishing constraint for the second image. The processor uploads the images with the applied manipulation effects to the online service for presentation in the different image categories.

Abstract: The invention provides methods and formulations comprising a protein comprising solvent accessible amino acid residues susceptible to oxidation wherein N-acetyl tryptophan (NAT) is used to prevent oxidation of the protein. The invention also provides methods for making such formulations and methods of using such formulations. Methods to measure degradation of NAT in protein formulations are also provided.

Abstract: A wideband RF attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high RF frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. In an alternative embodiment, extension to even higher frequencies can be achieved by utilizing a quarter-wave transmission line element at the signal interfaces of each signal path, thereby improving insertion loss and power handling.

Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in multi-transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable cross-circuit calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: Programmable multi-reflective phase shifters which provide reduced root-mean-square phase error, can be optimized for a desired frequency band, can compensate for process variations arising during manufacture, and can help offset system level performance shortfalls. Embodiments include a hybrid coupler (e.g., a Lange hybrid coupler) in combination with a multi-reflective reactance-based terminating circuit with a number of different configurations that permit various modes of operation, including a thermometric mode, a phase overlap mode with interstitial phase shift states, an extended range phase shift mode, and a “tweak bit” mode. A number of programmable or selectable RF phase shifters can be series or parallel connected to provide a desired gamut of phase shift.

Abstract: Customized guided workflow element arrangement techniques are described in which user interface elements configured to provide entry points for guided workflows are dynamically arranged based upon usage frequency of application features. In one or more implementations, personalized views of a workflow selection screen are generated and provided to users by arranging UI elements on an individual basis. Workflows related to features of an application that are used are identified based on per-user tracking. Ranks are set for the workflows based at least upon relative usage of corresponding features as determined through the tracking, which establishes an order for different workflows one to another. A user interface that implements the workflow selection screen may then be exposed having UI elements that are configured as entry points to different guided workflows and arranged in a customized arrangement in accordance with the rankings.

Abstract: An integrated circuit (IC) structure for radio frequency circuits having a grounded die seal that mitigates the effects of parasitic coupling through the die seal. Embodiments include conductive grounding ties that each electrically couple one or more of the internal grounding pads on an IC die within the magnetic loop formed by the die seal ring to an adjacent extent of an IC die seal. Induced parasitic energy within the die seal ring is quickly coupled to ground through the corresponding grounding ties and grounding pads. Accordingly, very little, if any, induced parasitic energy is propagated around the die seal ring.

Abstract: A wideband RF attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high RF frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. In an alternative embodiment, extension to even higher frequencies can be achieved by utilizing a quarter-wave transmission line element at the signal interfaces of each signal path, thereby improving insertion loss and power handling.

Abstract: Systems and methods are provided for generating multi-image content for online services using a single image. For example, a processor identifies publishing constraints specified for image categories in a profile of an online service. The processor generates a first image by applying a first publishing constraint to a copy of an input image and generates a second image by applying a second publishing constraint to a selected portion of the first image. The processor presents the first and second images in different preview interfaces. The processor applies manipulation effects to the second image that modify the second image independently of modifications to the first image. The manipulation effect is applied to the second in accordance with the second publishing constraint for the second image. The processor uploads the images with the applied manipulation effects to the online service for presentation in the different image categories.

Abstract: Embodiments of RF switching amplifiers are described generally herein. Other embodiments may be described and claimed.