Abstract: According to some aspects of this disclosure a radio frequency signal coupler is provided. The radio frequency coupler includes an input port, an output port, a main transmission line extending between the input port and the output port, a coupled transmission line electromagnetically coupled to the main transmission line, at least one coupled port coupled to the coupled transmission line, and a plurality of termination ports connected to the coupled transmission line, each termination port of the plurality of termination ports being connected to the coupled transmission line at a different location to provide a plurality of coupling factors corresponding to a plurality of signal frequencies.

Abstract: Radio-frequency switch having improved linearity. In some embodiments, a radio-frequency switch circuit can include first and second switch arms, with each switch arm including a plurality of transistors arranged in series to form a stack between a first node and a second node. The first node of the first switch arm can be coupled to the first node of the second switch arm. The radio-frequency switch circuit can further include an amplitude-phase cancelling block implemented across one or more transistors of each switch arm, and configured such that a third harmonic resulting from an ON state of the first switch arm is substantially canceled by a third harmonic resulting from an OFF state of the second switch arm.

Abstract: Examples of the disclosure include a coupler comprising an input port, an output port, a coupled port, an isolated port, a main line coupled between the input port and the output port, a coupled line coupled between the coupled port and isolated port, and one or more elements switchably coupled between the coupled port and the isolated port, the one or more elements including at least one of an inductive, capacitive, or resistive element.

Abstract: Examples of the disclosure include a coupler comprising an input port, an output port, a coupled port, an isolated port, a main line coupled between the input port and the output port, a coupled line coupled between the coupled port and the isolated port, and at least one capacitive element switchably coupled between at least one of the input port or the main line and at least one of the coupled port or the coupled line.

Abstract: A pistol rack having counterweight plates on the front and bottom of the rack shifts the center of gravity of the rack to facilitate more balanced carrying of the rack having pistols in the compartments thereof.

Abstract: A system may be configured to generate an estimate of value at risk and may include a processor to process instructions that cause the system to generate a rolling time series of value data having a plurality of dimensions, perform rotation transform of the time series, perform variance scaling and correlation scaling on transformed time series, reverse transform the results of the scaling, and estimate of a value-at-risk for the value data.

Abstract: A radio frequency signal coupler includes an input port, an output port, a main transmission line coupled between the input port and the output port, and a coupled transmission line electromagnetically coupled to the main transmission line. The coupled transmission line includes a first transmission line, a second transmission line, and a switch configured to couple the first and second transmission lines during a first mode of operation and to decouple the first and second transmission lines during a second mode of operation. The radio frequency couple can be used in a front end module of a communications device, such as a mobile phone.

Abstract: A physical container (e.g., a battery) may be filled up (charged) or emptied (discharged) with energy commensurate with requirements to post a particular amount of collateral. The disclosure provides computing systems and methods for processing data using a novel combination of wavelet techniques and rolling techniques to more efficiently detect seasonality in particular products (e.g., energy products) to more accurately model and determine collateral/margin requirements. A clearinghouse computing device may be configured to generate a margin requirement for a portfolio of products and may include a processor to process instructions that cause the clearinghouse computing device to perform wavelet decomposition and rolling methods on a historical database of records.

Abstract: A clearinghouse computing device may be configured to generate a margin requirement for a portfolio of financial products and may include a processor to process instructions that cause the clearinghouse computing device to retrieve a plurality of pricing records from a historical pricing database, process the plurality of pricing records to generate rolling time series pricing records for at least one financial product having a plurality of dimensions, reduce the number of dimensions from a starting dimension to a reduced dimension, perform variance scaling and correlation scaling on the reduced dimension rolling time series pricing records, and generate a margin requirement based on a value-at-risk calculation.

Abstract: A physical container (e.g., a battery) may be filled up (charged) or emptied (discharged) with energy commensurate with requirements to post a particular amount of collateral. The disclosure provides computing systems and methods for processing data using a novel combination of wavelet techniques and rolling techniques to more efficiently detect seasonality in particular products (e.g., energy products) to more accurately model and determine collateral/margin requirements. A clearinghouse computing device may be configured to generate a margin requirement for a portfolio of products and may include a processor to process instructions that cause the clearinghouse computing device to perform wavelet decomposition and rolling methods on a historical database of records.

Abstract: Radio-frequency switch having improved linearity. In some embodiments, a radio-frequency switch circuit can include first and second switch arms, with each switch arm including a plurality of transistors arranged in series to form a stack between a first node and a second node. The first node of the first switch arm can be coupled to the first node of the second switch arm. The radio-frequency switch circuit can further include an amplitude-phase cancelling block implemented across one or more transistors of each switch arm, and configured such that a third harmonic resulting from an ON state of the first switch arm is substantially canceled by a third harmonic resulting from an OFF state of the second switch arm.

Abstract: In one example, an electronic device may include a capturing unit to capture video content and audio content of an application being executed on the electronic device, an analyzing unit to analyze the video content and the audio content to generate a plurality of synthetic feature vectors, a processing unit to process the plurality of synthetic feature vectors to determine a content event corresponding to a scene displayed on the electronic device, and a controller to select an ambient effect profile corresponding to the content event and control a device according to the ambient effect profile to render an ambient effect in relation to the scene.

Abstract: Amplitude-phase canceling circuit for switch linearity. In some embodiments, a radio-frequency switch circuit can include first and second switch arms, with each switch arm including a plurality of transistors arranged in series to form a stack between a first node and a second node. The first node of the first switch arm can be coupled to the first node of the second switch arm. The radio-frequency switch circuit can further include an amplitude-phase cancelling block implemented across one or more transistors of each switch arm, and configured such that a third harmonic resulting from an ON state of the first switch arm is substantially canceled by a third harmonic resulting from an OFF state of the second switch arm.