Schwarzweller, Thomas

An apparatus for an energy meter comprising: an input configured to receive one or more phases of an electricity supply for metering; an analogue to digital convertor, ADC, configured to sample one of the phases of the one or more phases at a sampling frequency to generate a plurality of samples comprising a digital representation of the one of the one or more phases; a tuning block configured to: determine a phase angle difference between: (i) a first set of the plurality of samples representing a first voltage period of the one of the phases; and (ii) a second set of the plurality of samples representing a second voltage period of the one of the phases; and based on the phase angle difference, control the sampling frequency of the ADC.

The disclosure relates to a method and system for processing and responding to audio input signals comprising a trigger prompt. Example embodiments include a computer-implemented method comprising: receiving (601) at a first device an audio input signal comprising a trigger prompt; processing (602) at the first device the audio input signal to determine a first quality metric of the audio input signal; transmitting (603) by the first device the first quality metric over a local network; monitoring (604) by the first device whether a higher second quality metric of the audio input signal is transmitted by a second device over the local network; and if a higher second quality metric is not received by the first device, responding (608) by the first device to the trigger prompt.

An apparatus and method for mitigating received interference. Baseband signals received during a time interval by a first MIMO receiver and a second MIMO receiver are provided as in-phase and quadrature input streams of a complex valued input of a Discrete Fourier Transform (DFT) circuit that calculates a complex valued DFT dataset of the complex valued input. A complex valued interference mitigated frequency domain dataset is produced by determining an interference mask from a spectrogram of the complex valued DFT dataset and applying the interference mask to the spectrogram. An inverse DFT of the complex valued interference mitigated frequency domain dataset determines an interference mitigated complex valued time domain data stream that contains a first interference mitigated time series as its real valued data and a second interference mitigated time series as its imaginary valued data.

A method for operating a passive radio-frequency-identification (RFID) tag comprising: an integrated-circuit (IC) picked from a region of a wafer, with an IC integrated capacitance value based on the region of the wafer. The IC comprises a variable-capacitance and a memory-device. The method comprises: a first-configuration-step comprising: receiving configuration-data, which defines a capacitance offset from a nominal value based on the region of the wafer, from the memory-device; and setting the variable-capacitance to an initially-configured capacitance value based on the configuration-data. A second-configuration-step comprising: measuring IC-response power from a received signal from an RFID reader for the initially-configured capacitance value; setting the variable-capacitance to a first-reconfigured capacitance value; measuring the IC-response power from the received signal for the first-reconfigured capacitance value; and setting the variable-capacitance as one from a list containing: the initially-configured capacitance value, and the first-reconfigured capacitance value, based on the IC-response power for each capacitance value.

A receiver for a multi-antenna system and a method of generating channel estimations for the multi-antenna system are disclosed. In an embodiment, a receiver for a multi-antenna system comprises a detector configured to detect packets using signals received on a plurality of antennas, and a channel estimator configured to produce channel estimations based on the signals received on the plurality of antennas. The channel estimator is configured to estimate a relative channel with respect to first and second antenna using signals from first and second antennas to derive a relative channel estimation, estimate an antenna power for at least one of the first and second antennas using the signals from at least one of the first and second antennas, and compute channel estimations for the first and second antennas using the relative channel estimation and the antenna power for the at least one of the first and second antennas.

A dual-personal area network (PAN) router receives one or more fields of a frame of a PAN on a channel; determines that the dual-PAN router is not to route the frame to a PAN based on the one or more received fields and before the entire frame is received; and switches to receive on another channel for a transmission duration of the frame by an end device in response to the determination.

Provided is a voltage supply device for a display. The voltage supply device includes a voltage supply unit and a controller unit. The voltage supply unit includes an input terminal which receives a supply voltage, and a plurality of output terminals. A first output terminal of the plurality of output terminals provides a first output voltage level. A second output terminal of the plurality of output terminals provides a second output voltage level, and a third output voltage level which is different from and subsequent to the second voltage level. The controller unit provides a control signal to the voltage supply unit. The voltage supply unit sets the second and third voltage levels in dependence on the control signal.

A method for handling a temporary proactive command failure between an universal integrated circuit card (UICC 320) and a communication terminal (310). The method comprising, at the UICC: receiving a communication from the terminal; sending, in response thereto, a proactive command to the terminal; receiving, in response to the proactive command, a notification of a temporary proactive command failure between the UICC and the terminal where the notification includes an expected duration to recover from the temporary proactive command failure; and implementing a strategy to handle the temporary proactive command failure in dependence on the notification, wherein the strategy comprises one of: waiting a period of time that exceeds the expected duration before re-sending the proactive command; waiting an agreed time between the UICC and the terminal before re-sending the proactive command; re-sending the proactive command in response to a subsequent event initiated by the terminal; terminating communications with the terminal.

A radar system uses a phase locked loop to generate an FMCW signal. The phase-locked loop has an LC oscillator having a coarse bank of capacitors, a first fine bank of capacitors, and a second fine bank of capacitors. A chirp controller uses non-uniform coarse frequency steps for the chirp operation. A randomly selected control setting for the second fine bank of capacitors is used in conjunction with the coarse bank of capacitors to generate the non-uniform coarse frequency steps. The first fine bank of capacitors is used to generate frequencies between coarse frequency steps as part of the chirp operation. Scale factor corrections are used to generate control settings for the second fine capacitor bank to reduce error.

Devices with a dielectric waveguide interface for coupling between an antenna system and a dielectric waveguide are disclosed. In an example, a device includes a housing that forms an enclosed space, an antenna system within the enclosed space, and a dielectric waveguide interface configured to couple a dielectric waveguide to the housing without compromising the housing.