Abstract: Disclosed are systems, circuits and methods related to controlling of a radio-frequency (RF) power amplifier (PA). In some embodiments, a PA control circuit can include a first circuit configured to generate a replica base current from a base current provided to the PA, with the replica base current being representative of a collector current of the PA scaled by a beta parameter. The PA control circuit can further include a second circuit configured to generate a beta-tracking reference current from a temperature-compensated voltage and a base resistance associated with the PA. The PA control circuit can further include a current steering circuit configured to receive the replica base current and the beta-tracking reference current and generate a proportional current to a clamping node of a base driver. In some embodiments, the replica base current can be obtained by a current-mode comparison of a finger-sensed current with a ramp current.

Abstract: Features are disclosed for processing a user utterance with respect to multiple subject matters or domains, and for selecting a likely result from a particular domain with which to respond to the utterance or otherwise take action. A user utterance may be transcribed by an automatic speech recognition (“ASR”) module, and the results may be provided to a multi-domain natural language understanding (“NLU”) engine. The multi-domain NLU engine may process the transcription(s) in multiple individual domains rather than in a single domain. In some cases, the transcription(s) may be processed in multiple individual domains in parallel or substantially simultaneously. In addition, hints may be generated based on previous user interactions and other data. The ASR module, multi-domain NLU engine, and other components of a spoken language processing system may use the hints to more efficiently process input or more accurately generate output.

Abstract: A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.

Abstract: Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.

Abstract: It relates to an anthranilonitrile compound, and to the process for preparing the said anthranilonitrile compound, and to its use. The anthranilonitrile compound has a chemical general formula (I). The compound of the general formula (I) has excellent pesticidal activity, can be used to control pests, and has more than 98% of mortality in 3 days to diamondback moth and pink borer.

Abstract: This application discloses correction circuitry for correcting a phase distortion in an amplification circuit by measuring an amplitude distortion and controlling a phase shifting component based upon the measured amplitude distortion. In one embodiment, a first amplitude distortion sensor is coupled to a first node of an amplification circuit, and a first phase shifter is coupled to a second node of the amplification circuit. Additionally, a first control circuit is coupled to the first amplitude sensor and to the first phase shifter. The first control circuit is configured to correlate a first amplitude distortion measured by the first amplitude distortion sensor to a first inferred phase distortion, and to generate a first phase correction signal based upon the first inferred phase distortion, and is configured to send the first phase correction signal towards the first phase shifter.

Abstract: It relates to an anthranilonitrile compound, and to the process for preparing the said anthranilonitrile compound, and to its use. The anthranilonitrile compound has a chemical general formula (I). The compound of the general formula (I) has excellent pesticidal activity, can be used to control pests, and has more than 98% of mortality in 3 days to diamondback moth and pink borer.

Abstract: Embodiments of the present invention disclose an ATCA data exchange system which includes: a backboard, at least one exchange board and service board. The exchange board includes at least one Fabric port group, each of which is connected to a service board through the backboard to form a first exchange channel for broadband service, the Fabric port group includes four difference sending and receiving port pairs, and each port pair includes a pair of difference receiving and sending ports. A connector 20 in the Fabric interface of the exchange board includes at least one port pair, and each port pair is connected to a service board through the backboard to form a second exchange channel and is configured for a separate narrowband service data exchange that is independent of the broadband data exchange. Thus to simplify the processing of narrowband data and to decrease the time delay.

Abstract: A gate power control technique for a power amplifier (PA) provides practical improved efficiency at backed-off power levels. It can be applied to the main gate of the output stage of the PA, the cascode gate, or any combination thereof. Both voltage mode and current mode signal processing may be used. The gate power control can be implemented in both open-loop and closed-loop using AC and DC coupled drivers and output stages. It may further use one or more control ports in the radio frequency (RF) signal path.

Abstract: In transmitter modules or power amplifier (PA) modules there is at least a possible path for a second and even a third harmonic of a low band to crossover unfiltered into the high band path and reach the antenna and hence cross band isolation is necessary. Forward isolation is necessary in order to limit the input crossing over the PAs into the antenna port. According to the methods and the circuits such cross band isolation and forward isolation is improved by detuning the filter and matching network at the output of the PA. The circuit comprises a trap at the harmonic frequencies of the low band thereby at least reducing the impacts of the cross band and forward isolation.

Abstract: A small automatic polishing liquid cleaning device for rigid gas permeable contact lens includes a container; a containing chamber is provided inside the container; an exhaust pipe, and a liquid suction pipe which communicates with the containing chamber disposed on the container; an outlet end of the exhaust pipe communicates with a vacuum orifice of a vacuum generator via a connector, a gas inlet of the vacuum generator communicates with a pipeline for a compressed gas, and a liquid inlet of the liquid suction pipe is disposed at the bottom of a waste liquid trough.

Abstract: A high precision rigid gas-permeable contact lens edge curve polishing lathe includes a base provided at the bottom of a machine body. A first crank and a second crank are respectively provided on two sides of the base. A detent mechanism is provided on both the first crank and the second crank. The detent mechanism includes an ejector pin matching the rotational direction of the first crank and the second crank and a numerical display unit revealing the position of the ejector pin. The contact position of a polishing sponge on a spindle of the polishing lathe and a lens can be precisely positioned through numerical reading, realizing quantized control of the polishing of a lens edge, and enabling improvement and modification to the design of the lens edge to become simpler.

Abstract: An example energy dissipation device for controlling a fuel cell fluid includes a conduit extending in longitudinal direction between a first opening and a second opening. A flow control insert is configured to be received within the conduit. The flow control insert is configured to cause a fuel cell fluid to flow helically relative to the longitudinal direction.

Abstract: Disclosed are systems, circuits and methods related to controlling of a radio-frequency (RF) power amplifier (PA). In some embodiments, a PA control circuit can include a first circuit configured to generate a replica base current from a base current provided to the PA, with the replica base current being representative of a collector current of the PA scaled by a beta parameter. The PA control circuit can further include a second circuit configured to generate a beta-tracking reference current from a temperature-compensated voltage and a base resistance associated with the PA. The PA control circuit can further include a current steering circuit configured to receive the replica base current and the beta-tracking reference current and generate a proportional current to a clamping node of a base driver. In some embodiments, the replica base current can be obtained by a current-mode comparison of a finger-sensed current with a ramp current.

Abstract: In transmitter modules or power amplifier (PA) modules there is at least a possible path for a second and even a third harmonic of a low band to crossover unfiltered into the high band path and reach the antenna and hence cross band isolation is necessary. Forward isolation is necessary in order to limit the input crossing over the PAs into the antenna port. According to the methods and the circuits such cross band isolation and forward isolation is improved by detuning the filter and matching network at the output of the PA. The circuit comprises a trap at the harmonic frequencies of the low band thereby at least reducing the impacts of the cross band and forward isolation.

Abstract: Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.

Abstract: A system for detecting and minimizing interference in a radio receiver includes a plurality of bandpass filters having different response characteristics, a power detector configured to compare a power output of a first bandpass filter and a second bandpass filter, and logic to cascade a third bandpass filter when the difference in power output between the power output of the first bandpass filter and the power output of the second bandpass filter exceeds a threshold amount.

Abstract: The present invention relates to fusion polynucleotides for biosynthesis of beta-carotene and a method for producing beta-carotene using the same. More particularly, it relates to fusion polynucleotides encoding phytoene synthase, connective sequences of FMDV-derived 2A sequence or internal ribosome entry site (IRES) and carotene desaturase, and a method for producing beta-carotenes using the same. Fusion polynucleotides and the recombinant vector using the same of the present invention have the effect of expression both phytoene synthase gene and carotene desaturase gene stably within cell transformants. Accordingly, fusion polynucleotides of the present invention can be used to regulate the biosynthetic metabolism of plant producing beta-carotene. Furthermore, it can be applied to effectively increase the content of beta-carotene, a useful metabolite.

Abstract: A system for tuning a radio receiver includes a radio receiver configured to provide a downconverted digital error signal, a digital synthesizer circuit configured to generate a first local oscillator control signal, a digital automatic frequency control (AFC) circuit configured to generate a second local oscillator control signal, wherein the digital synthesizer circuit is enabled to generate the first local oscillator control signal when the digital AFC circuit is disabled, the first local oscillator control signal corresponds to an estimate of a desired local oscillator frequency, the digital AFC circuit is enabled to generate the second local oscillator control signal when the digital synthesizer circuit is disabled and the second local oscillator control signal corresponds to the desired local oscillator frequency.

Abstract: An optical line terminal includes an optical network interface having an optical receiver unit to convert an optical signal received from an optical network unit into an electrical signal and output a direct current bias monitoring signal and an error code detector to detect an error code in the electrical signal to output an error code indication signal, a storage to store therein a direct current bias table indicating a direct current bias corresponding to a direct current bias control parameter of the optical network units and a dynamic band allocation information table indicating communication time slot information allotted to each optical network unit and a control unit to receive the direct current bias monitoring signal and the error code indication signal and supply the direct current bias control signal to the optical receiver unit to thereby form one feedback circuit together with the optical network interface.