Abstract: The disclosure relates to a circuit arrangement for transmitting uplink and downlink signals between at least one terminal device and at least one antenna, wherein the circuit arrangement comprises a signal coupler for providing a decoupled uplink or downlink signal, a device for providing a reference signal of adjustable frequency, a mixer for mixing the decoupled signal and the reference signal and a filter device for low-pass or bandpass filtering of the mixed signal, wherein the circuit arrangement comprises an evaluation device for evaluating the filtered signal, wherein, depending on the adjusted frequency of the reference signal and on at least one signal property of the filtered signal, a frequency band or channel in which the transmitted signal is being transmitted can be identified, and also to a method for identifying a frequency band or channel.

Abstract: A transmitter includes a first digital-to-analog converter (DAC) circuit consisting of a first set of unary cells to mix a first set of digital input data with a first clock signal. A second DAC circuit includes a second set of unary cells to mix a second set of digital input data with a second clock signal. A third circuit provides signals to the first DAC circuit and the second DAC circuit to implement an assignment scheme to assign either an in-phase (I) component or a quadrature (Q) component to the first set of unary cells and the second set of unary cells. Based on the assignment scheme, the first set of digital input data include I-data and Q-data, and the second set of digital input data include I-data and Q-data.

Abstract: An antenna unit is configured to transmit and/or receive signals and is connected to transmitting/receiving unit via a signal cable. A control device is configured to adjust signal strength by modifying gain of the control device. A calibration signal is provided by the transmitting/receiving unit and the signal strength of the calibration signal is used to adjust the gain of the control device.

Abstract: An antenna unit is configured to transmit and/or receive signals and is connected to transmitting/receiving unit via a signal cable. A control device is configured to adjust signal strength by modifying gain of the control device. A calibration signal is provided by the transmitting/receiving unit and the signal strength of the calibration signal is used to adjust the gain of the control device.

Abstract: Disclosed are exemplary methods and devices (e.g., circuits, compensators, low-gain signal boosters, repeaters, signal amplifier devices, etc.) for providing time division duplexing synchronized compensation between a terminal device (e.g., mobile phone, user equipment within a vehicle, a coupling antenna on a wireless charger, etc.) and an antenna (e.g., a vehicle roof antenna, etc.) or antenna connection, etc. In an exemplary embodiment, a circuit includes at least one detector, at least one control unit, at least one uplink path including at least one transmission amplifier, and at least one downlink path including at least one reception amplifier. The uplink and downlink paths are configured to be operable for respectively amplifying uplink and downlink signals having a same frequency according to time division duplexing. The control unit is configured to be operable for activating the uplink path and deactivating the downlink path before an uplink signal is transmitted by a terminal device.

Abstract: A circuit arrangement capable of adjusting signal parameters of a plurality of signals that is transmitted between one or more terminals and one or more antennas is provided. The circuit arrangement is configured to separate a common signal path for the plurality of signals into a plurality of individual signal paths, wherein two or more signal paths of the plurality of signal paths are configured to carry different single signals. A signal adjusting section is configured to independently adjusting one or more signal parameters for two or more single signals.

Abstract: Methods and devices are disclosed for amplifying radio signals between a terminal and an antenna or an antenna connection of a circuit having an amplification unit and a detector unit, which has signal branches designed for different frequency ranges, and a power detector. A transmission signal received by the terminal is divided into at least a first signal part and a second signal part. The first signal part is applied to the signal branches of the detector unit. A frequency range of the first signal part is determined by sequential application of the signal branches of the detector unit to the power detector for evaluating a power of the first signal part. For the second signal part, the signal routing in the amplification unit is adjusted based on the frequency range determined by the detector unit. At least the second signal part is amplified by the amplification unit.

Abstract: Techniques are described for accurate tracking of a radiofrequency (RF) carrier for amplitude-modulated signals in unstable reference clock environments. For example, some embodiments operate in context of clock circuits in devices configured for near-field communication (NFC) card emulation (CE) mode. The clock circuits seek to generate an internal clocking signal by tracking a clock reference, such as an RF carrier. In some cases, the clock reference can unpredictably become unreliable for periods of time, during which continued tracking of the unreliable clock reference and/or improper reacquisition can yield appreciable frequency and phase errors in the generated internal clocking signal. Some embodiments implement phase delta detection with time limiting to limit the magnitude of such errors in the internal clocking signal introduced while tracking an unreliable clock reference. Other embodiments provide feedback-pause-control (FPC) to force proper clock reference reacquisition.

Abstract: Techniques are described for accurate tracking of a radiofrequency (RF) carrier for amplitude-modulated signals in unstable reference clock environments. For example, some embodiments operate in context of clock circuits in devices configured for near-field communication (NFC) card emulation (CE) mode. The clock circuits seek to generate an internal clocking signal by tracking a clock reference, such as an RF carrier. In some cases, the clock reference can unpredictably become unreliable for periods of time, during which continued tracking of the unreliable clock reference and/or improper reacquisition can yield appreciable frequency and phase errors in the generated internal clocking signal. Some embodiments implement phase delta detection with time limiting to limit the magnitude of such errors in the internal clocking signal introduced while tracking an unreliable clock reference. Other embodiments provide feedback-pause-control (FPC) to force proper clock reference reacquisition.

Abstract: Techniques are described for frequency-division-coordination of automatic power control (APC) in a transceiver of a near-field reader. Such frequency-division-coordinated APC (FDC-APC) can enable continuous APC updates concurrent with communication frames to achieve field strength specifications without conventional degradations in communication reliability. For example, a transceiver implements a FDC-APC loop that received a detuning signal from signals received and/or transmitted over a near-field communication link, generates an error signal by comparing the detuning signal with a reference detuning level, and updates a power control signal according to an update frequency (e.g., corresponding to a APC loop bandwidth) that is a function of at least a filter frequency profile and is out-of-band with respect to a modulation frequency band. Modulated signals can be transmitted over the near-field communication link according to variable power settings controlled to the power control signal.

Abstract: A malaria vaccine composition is disclosed herein that uses liver-stage parasite exported proteins as the target of a protective immune response instead of sporozoite proteins. Also disclosed is a recombinant viral particle that comprises a fusion protein disclosed herein, wherein the malaria antigen is displayed within the viral particle. Also disclosed is an isolated polynucleotide that comprises a nucleic acid sequence encoding a fusion protein disclosed herein operably linked to an expression control sequence. Also disclosed is a recombinant herpes simplex virus (HSV) genome comprising a modified VP26 gene encoding a fusion protein disclosed herein. Also disclosed is a vaccine composition that comprises a recombinant viral particle disclosed herein in a pharmaceutically acceptable excipient. In some cases, the composition further comprises an adjuvant.

Abstract: Techniques are described for accurate tracking of a radiofrequency (RF) carrier for amplitude-modulated signals in unstable reference clock environments. For example, some embodiments operate in context of clock circuits in devices configured for near-field communication (NFC) card emulation (CE) mode. The clock circuits seek to generate an internal clocking signal by tracking a clock reference, such as an RF carrier. In some cases, the clock reference can unpredictably become unreliable for periods of time, during which continued tracking of the unreliable clock reference can yield appreciable frequency and phase errors in the generated internal clocking signal. Embodiments implement phase delta detection with time limiting to limit the magnitude of such errors in the internal clocking signal introduced while tracking an unreliable clock reference.

Abstract: In certain embodiments, enhancement of a vision of a user may be facilitated. In some embodiments, a visual test presentation including a set of stimuli may be provided to a user. Feedback related to the set of stimuli may be obtained during the visual test presentation. The feedback may be provided to a prediction model, and the prediction model may be configured based on the feedback. Subsequent to the configuring of the prediction model, live video stream data, eye characteristic information, or other information may be provided to the prediction model to obtain a set of modification parameters. A modified version of the live video stream data may be generated and displayed to the user based on the live video stream and the set of modification parameters.

Abstract: In certain embodiments, enhancement of a field of view of a user may be facilitated via one or more dynamic display portions. In some embodiments, one or more changes related to one or more eyes of a user may be monitored. Based on the monitoring, one or more positions of one or more transparent display portions of wearable device may be adjusted, where the transparent display portions enable the user to see through the wearable device. A live video stream representing an environment of the user may be obtained via the wearable device. A modified video stream derived from the live video stream may be displayed on one or more other display portions of the wearable device.

Abstract: In certain embodiments, image data modifications may be facilitated for dynamic vision defects. In some embodiments, one or more eyes of a user may be monitored while a set of stimuli are displayed to the user. Feedback related to the set of stimuli may be obtained, where the feedback indicates (i) whether or how the user sees one or more stimuli of the set or (ii) one or more characteristics related to the eyes that occurred when such stimuli are displayed. A set of modification profiles associated with the user may be generated based on the feedback, where each modification profile of the set (i) is associated with eye-related characteristics and (ii) includes modification parameters to be applied to an image to modify the image for the user when eye-related characteristics of the user matches the associated eye-related characteristics.

Abstract: In certain embodiments, enhancement of a vision of a user may be facilitated. In some embodiments, a visual test presentation including a set of stimuli may be provided to a user. Feedback related to the set of stimuli may be obtained during the visual test presentation. The feedback may be provided to a prediction model, and the prediction model may be configured based on the feedback. Subsequent to the configuring of the prediction model, live video stream data, eye characteristic information, or other information may be provided to the prediction model to obtain a set of modification parameters. A modified version of the live video stream data may be generated and displayed to the user based on the live video stream and the set of modification parameters.

Abstract: In certain embodiments, enhancement of a field of view of a user may be facilitated via one or more dynamic display portions. In some embodiments, one or more changes related to one or more eyes of a user may be monitored. Based on the monitoring, one or more positions of one or more transparent display portions of wearable device may be adjusted, where the transparent display portions enable the user to see through the wearable device. A live video stream representing an environment of the user may be obtained via the wearable device. A modified video stream derived from the live video stream may be displayed on one or more other display portions of the wearable device.

Abstract: In certain embodiments, enhancement of a field of view of a user may be facilitated via one or more dynamic display portions. In some embodiments, one or more changes related to one or more eyes of a user may be monitored. Based on the monitoring, one or more positions of one or more transparent display portions of a screen of wearable device may be adjusted, where the transparent display portions enable the user to see through the screen of the wearable device. A live video stream representing an environment of the user may be obtained via the wearable device. An enhanced video stream derived from the live video stream may be displayed on one or more other display portions of the screen of the wearable device.

Abstract: A signal coupling apparatus for transmitting transmission signals between a terminal and an antenna includes a terminal-side interface, at least one attenuation device and at least one connection signal arm for connecting the terminal-side interface with the attenuation device. At least a first transmission activity detection device is coupled with the connection signal arm for signaling purposes. The first transmission activity detection device is capable of generating a protection signal for controlling the attenuation device if a transmission power of a transmission signal is greater than a predetermined power. There is also described a method for operating such a signal coupling apparatus.

Abstract: In certain embodiments, live image data modifications may be facilitated for dynamic vision defects. In some embodiments, one or more eyes of a user may be monitored while a set of stimuli are displayed to the user. Feedback related to the set of stimuli may be obtained, where the feedback indicates (i) whether or how the user sees one or more stimuli of the set and (ii) one or more characteristics related to the eyes that occurred when such stimuli are displayed. A set of modification profiles associated with the user may be generated based on the feedback, where each modification profile of the set (i) is associated with eye-related characteristics and (ii) includes modification parameters to be applied to an image to modify the image for the user when eye-related characteristics of the user matches the associated eye-related characteristics.