Abstract: The present disclosure describes methods and systems for interpreting a user external data reference value and a user data change input value, accessing an external data source in response to the user external data reference value, receiving source data from the external data source, updating the source data in the external data source in response to the external data source and the user data change input value, and providing an updated display value for a document in response to the user data change input value and the source data.

Abstract: A power amplification system may include a shared common cascode input stage. A power amplification system may include a plurality of cascode output stages parallelly connected to the shared common cascode input stage, each cascode output stage associated with a frequency band.

Abstract: Robustness of a machine learning model can be characterized by receiving a file with a known, first classification by the machine learning model. Thereafter, a selection is made as to which of a plurality of perturbation algorithms to use to modify the file. The perturbation algorithm is selected as to provide a shortest sequence of actions to cause the machine learning model to provide a desired classification. Subsequently, the received file is iteratively modified using the selected perturbation algorithm and inputting the corresponding modified file into the machine learning model until the machine learning model outputs a known, second classification. Related apparatus, systems, techniques and articles are also described.

Abstract: The present invention provides a removable optical imaging device cap for use with a near infrared (NIR) light optical imaging device for detecting intracranial hematoma.

Abstract: Systems and methods for duplexer circuits having signal leakage cancellation are provided. In one aspect, a duplexer circuit includes a transmit path splitter configured to split a radio frequency transmit signal into a pair of radio frequency transmit signals, and a receive path splitter configured to combine a pair of radio frequency receive signals. The duplexer circuit also includes an antenna path splitter configured to combine a pair of radio frequency transmit signals and split a radio frequency receive signal into the pair of radio frequency receive signals, and first and second duplexers. The first duplexer is coupled to a first leg of each of the transmit path splitter, the receive path splitter, and the antenna path splitter, and the second duplexer is coupled to a second leg of each of the transmit path splitter, the receive path splitter, and the antenna path splitter.

Abstract: Systems, methods, and/or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination.

Abstract: An air filtration apparatus for supplying a flow of filtered air to an inlet of an RPT device, the air filtration apparatus comprising an inlet flow path, an outlet flow path, an air outlet, and a blower configured to receive air from the inlet flow path and to supply air at above ambient pressure to the outlet flow path, wherein the inlet flow path comprises a filter means comprising a HEPA filter and/or a VOC filter, and wherein the blower is configured to supply pressurised air to the outlet flow path at a flow rate of at least 5 L/min.

Abstract: A system may include an antenna. A system may include a module including a power amplifier and an antenna switch. A system may include an antennaplexer communicatively coupled to the antenna and the antenna switch, the antennaplexer positioned between the antenna switch and the antenna in a signal path. A system may include a controller communicatively coupled to the module, the controller configured to control the antenna switch with an override signal.

Abstract: Remote compensators for mobile devices are provided. In certain embodiments, a remote compensator includes a first balun, a cable-side circulator including an output that provides a transmit signal and an input that receives an amplified receive signal, a first phase shifter, a second phase shifter, a first antenna-side circulator, a second antenna-side circulator, transmit amplifier circuitry, and a receive amplifier that generates the amplified receive signal by amplifying a first receive signal from the first antenna-side circulator and a second receive signal from the second antenna-side circulator. The transmit amplifier circuitry includes an input that receives the transmit signal, a first output connected to a first end of a winding of the first balun through the first antenna-side circulator and the first phase shifter, and a second output connected to a second end of the winding of the first balun through the second phase shifter and the second antenna-side circulator.

Abstract: A system may include a multiplexer coupled to an antenna. The system may further include a combined band filter circuit coupled to the multiplexer and including a filter having a modified filter bandpass extent to include a frequency range of a roaming band, the combined band filter circuit configured to couple a signal associated with the roaming band to the filter.

Abstract: Envelope tracking schemes for Doherty power amplifiers are provided herein. In certain embodiments, an envelope tracking system includes a carrier amplifier that amplifies a first radio frequency signal, a peaking amplifier that amplifies a second radio frequency signal corresponding to a delayed version of the first radio frequency signal, an envelope tracker that generates a first power supply voltage that powers the carrier amplifier, and a delay circuit that delays the first power supply voltage to generate a second power supply voltage that powers the peaking amplifier. The envelope tracker controls a voltage level of the first power supply voltage to track an envelope of the first radio frequency signal. Thus, supply modulation is used to achieve gains in linearity, efficiency, and/or other performance metrics.

Abstract: Radio frequency (RF) communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, an RF communication system includes a transmitter including a power amplifier that amplifies an RF transmit signal, a receiver including a low noise amplifier (LNA) that amplifies an RF receive signal, and an interference cancellation circuit that selects a bandpass filter from a plurality of bandpass filters to filter the RF transmit signal after amplification by the power amplifier. The selected bandpass filter operates in combination with a controllable gain circuit and a controllable phase circuit to generate an analog interference cancellation signal that is injected into the receiver to compensate the RF receive signal for interference arising from the transmitter.

Abstract: A door frame and threshold assembly including a substantially closed reservoir tube having a first plurality of spaced apart weep holes therein and a second plurality of spaced apart weep holes, an interior sill portion arranged on a ceiling of the reservoir tube, the interior sill portion having a first sloped surface having a descending slope arranged in a direction towards the plurality of spaced apart weep holes, and an exterior sill portion at least abutting one of a pair of sidewalls of the closed reservoir tube, the exterior sill portion having a second sloped surface having a descending slope arranged in a direction away from the closed reservoir tube, wherein a channel is formed by the ceiling of the closed reservoir tube, an edge of the interior sill portion, and an edge of the exterior sill portion.

Abstract: Aspects of this disclosure relate to a radio frequency module with a radio frequency coupler and a coupler switching circuit. The coupler switching circuit can provide an indication of radio frequency power generated by the radio frequency coupler to a first input/output port. The coupler switching circuit can also pass an indication of radio frequency power received at the first input/output port to a second input/output port, and pass an indication of radio frequency power received at the second input/output port to the first input/output port.

Abstract: Examples for identification and authentication of hardware. Techniques may include receiving a node identifier during an initial phase of the node. The node identifier may include an initial unique identifier of the node. The node may receive a latest change identifier during a phase change of the node, wherein the phase change may cause a hierarchical change of the node. The latest change identifier is configured to incorporate a latest unique identifier corresponding to a latest system and one or more unique identifiers corresponding to one or more earlier systems of the node. Further, responsive to the reception of the latest change identifier, delete an earlier change identifier, and the node may send the second change identifier to a management service, in response to a request for authentication of the node by the management service.

Abstract: The disclosure relates to an apparatus for connecting an electronic component to a conductor. A housing includes at least one slot and defines at least one component chamber for carrying the electronic component. A liquid coolant can pass through the housing. A pair of conductive members extends from the housing through the at least one slot and can be releasably inserted into a channel defined in a support assembly. The support assembly facilitates an electrical connection between the conductive members and corresponding conductive contact members connected to a respective power supply or electrical load. The support assembly can provide an inward sealing force to a seal on the housing circumscribing the pair of conductive members.

Abstract: A process includes communicating by a first device, with a second device. The communicating includes the first device receiving data from the second device that represents a certificate. The certificate binds a hierarchy of logical identifiers to a cryptographic key. The hierarchy of identifiers includes a first logical identifier that corresponds to a group membership. The process includes authenticating, by the first device, the second device based on the certificate. The process includes allowing, by the first device, a secure connection to be set up between the first device and the second device based on whether the first logical identifier represents that the second device is a member of a first group of devices of which the first device is a member.

Abstract: Remote compensators for mobile devices are provided. In certain embodiments, a remote compensator includes a first balun, a cable-side circulator including an output that provides a transmit signal and an input that receives an amplified receive signal, a first phase shifter, a second phase shifter, a first antenna-side circulator, a second antenna-side circulator, a push-pull amplifier, and a receive amplifier that generates the amplified receive signal by amplifying a first receive signal from the first antenna-side circulator and a second receive signal from the second antenna-side circulator. The push-pull amplifier includes an input that receives the transmit signal, a first output connected to a first end of a winding of the first balun through the first antenna-side circulator and the first phase shifter, and a second output connected to a second end of the winding of the first balun through the second phase shifter and the second antenna-side circulator.

Abstract: The radio frequency front-end systems herein include modules having bandwidth controllable components, such as amplifier and filters. By implementing the modules with bandwidth control, the same module can be used for operation of multiple frequency bands including a first frequency band and a second frequency band. Thus, when implementing features such as carrier aggregation, multiple-input multiple-output (MIMO), and/or sounding resource signaling (SRS) for supporting the multiple frequency bands, the total number of modules used can be reduced and/or additional feature support can be provided compared to an implementation in which each module supports a single frequency band.

Abstract: The radio frequency front-end systems herein include modules having bandwidth controllable components, such as amplifier and filters. By implementing the modules with bandwidth control, the same module can be used for operation of multiple frequency bands including a first frequency band and a second frequency band. Thus, when implementing features such as carrier aggregation, multiple-input multiple-output (MIMO), and/or sounding resource signaling (SRS) for supporting the multiple frequency bands, the total number of modules used can be reduced and/or additional feature support can be provided compared to an implementation in which each module supports a single frequency band.