Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract: There is described a method for optimizing block reception for products that do support a simultaneous use of at least two SIM cards.

Abstract: Receiver (RCV) adapted for determining an estimation of a Sampling Frequency Offset an OFDM signal received from an emitter EMT over a transmission channel (TC), this signal being constituted of symbols; said receiver comprising means for: —receiving symbols from said emitter through a first path of said transmission channel; —receiving these symbols from said emitter through a second path of the transmission channel; this second path having a different ratio between the durations of a total OFDM symbol and a useful data portion of it; —determining the estimation according to received symbols through the first and second paths.

Abstract: An audio amplification circuit comprises an amplifier having an input and an output, as well as an audio output to which a load can be connected. It additionally comprises a first driver stage having an input and an output which is not coupled to the audio output, and a second driver stage having an input and an output which is coupled to the audio output. The output from the amplifier is selectively coupled to the input of the first driver stage in a first phase of operation and then selectively to the input of the second driver stage in a second phase of operation following the first phase of operation.

Abstract: The invention proposes a direct current voltage conversion circuit which can operate as a step-up circuit, a step-down circuit, or operate as a step-up or step-down circuit depending on the modes of operation.

Abstract: A power supply noise measurement device for inclusion with an integrated circuit, the integrated circuit having a functional block, the noise measurement device comprising: a signal generator configured to provide a clock signal to the functional block, an antenna comprising a transistor, and being located proximate to the functional block, the antenna being configured to receive the clock signal from the signal generator, and a jitter estimator configured to provide a measure of the relative jitter between a signal output from the antenna and a reference clock signal, wherein the transistor of the antenna receives electrical power from the same power source that delivers power to the functional block.

Abstract: A method for configuring an electronic device having an equalizer suited for processing a numeric audio signal according to an objective equalization improves the equalization of the numeric audio signal. The equalizer has a transfer function that implements a set of band-pass filters having a constant band-pass and a configurable weight in the transfer function. The method provides a set of objective gains representing the objective equalization, with each objective gain corresponding to a respective frequency. The method also determines values of the weights of the band-pass filters that minimize an error evaluated by comparing the set of objective gains to the transfer function. The set of band-pass filters includes at least one pair of band-pass filters having a common central frequency and distinct band-passes. The method also sets the weights of the band-pass filters to the determined values.

Abstract: A method of determining a current state of charge of a battery having an internal resistance includes estimating the current state of charge of the battery at a current time as a function of a previous state of charge of the battery at a previous time, a battery voltage of the battery during a time interval between the previous time and the current time, and a value of the internal resistance of the battery. The method improves the determining of the current state of charge of a battery.

Abstract: The invention proposes a radio frequency circuit which comprises a transformer with a first primary circuit, a second primary circuit, and a secondary circuit, the secondary circuit comprising an integrated first inductor, this first inductor being positioned, on an axis orthogonal to a surface of the circuit, between an integrated second and third inductor respectively comprised in the first primary circuit and second primary circuit.

Abstract: A wireless communication apparatus is arranged to detect, among a plurality of modulated carrier signals of different frequencies, at least one of the modulated carrier signals modulated with a tone burst. A receiver provides a composite signal comprising the plurality of modulated carrier signals received simultaneously. An ADC generates samples of the composite signal, and the samples of the composite signal are divided into a plurality of blocks. The samples of each block are transformed into frequency domain components, and the frequency domain components of each block are divided into a plurality of groups, each group corresponding to a range of frequencies occupied by a different one of the modulated carrier signals. Tone burst detection is performed on each group, and it is determined which of the modulated carrier signals is modulated with the tone burst, according to which of the groups the tone burst is detected in.

Abstract: A method for dynamically clocking one component located into a Wireless telecommunication apparatus comprising a RF transceiver subject to desensizitation by said component EMI, characterized in that it involves the steps of performing an adaptive control on the clock rate of said component so as to locate a wideband noise PSD null just to the left or to the right, in the frequency domain, of the RF transceiver wanted carrier frequency (fw) Particularly, the control is performed by means of the control of programmable frequency dividers, and under the control of a general control unit (UCM) for the purpose of performing a contextual analysis of the current mode of operation of said wireless telecommunications and, in response to said contextual analysis, for determining the fine tuning of the clock rate to be applied to said component.

Abstract: A low-power-mode unit connected in parallel with a low-dropout regulator to provide a low-power mode includes a power P-MOS transistor, a differential amplifier, and an analog synchronization loop. The analog synchronization loop is configured to add a variable voltage offset depending on a total current at the output such that, in a high-power mode, the low-power unit current flowing through the P-MOS transistor is not zero, while being substantially smaller than the low-dropout regulator current flowing through the low-dropout regulator, and smaller than a predetermined value.

Abstract: An integrated circuit is provided that is adapted to perform power path control in a mobile equipment. The integrated circuit integrator external connections, and one or more alimentation switches adapted to switch on or off one or more external connections. The integrated circuit further integrates one or more driving switches of at least one DCDC buck converter. One driving switch is connected both to an external connection through an alimentation switch and to another external connection directly or through an alimentation switch.

Abstract: The invention relates to an electronic integrated amplifier for driving an acoustic transducer. The amplifier comprises two differential input terminals to receive an input signal and a first and a second output terminal to provide an output signal to the transducer. In addition, the amplifier comprises an operational amplifier having an input end including differential inputs and an output end operatively associated with the first and second output terminals. A pair of input resistors connect the two differential input terminals to two intermediate terminals, respectively. A pair of feedback resistors connect the first and second output terminals to the two intermediate terminals, respectively. The integrated amplifier also comprises means for high-pass filtering the input signal.

Abstract: The invention proposes a voltage regulating device having a switch in an electrical circuit between a first node (30, 140) and a second node (40, 130), comprising a first field effect transistor (21, 110) and a second field effect transistor (22, 120) connected in cascade. The switch is controlled by: —setting the gate (G1,G3) of the first transistor to a first electrical potential, and, —to close the switch, setting the gate (G2, G4) of the second transistor to the first potential, or —to open the switch, setting the gate of the second transistor to the electrical potential of the second node, with the difference between the first potential and the second potential then being adapted to allow opening the first transistor and the second transistor. The switch can be used in a switched-mode power supply.

Abstract: The present disclosure generally relates to the field of digital Class-D amplifiers and more specifically to a technique for reducing output waveforms distortion of a digital class-D amplifier implementing a ternary modulation scheme.

Abstract: There is described a method and a device for forming a panoramic image wherein it is decided to add a current image in a current panoramic image based on definitions of edges of the current image and the current panoramic image.

Abstract: A polar modulator (200) comprises a modulation generator (10) arranged to generate phase modulation data and amplitude modulation data; and a phase modulation stage (20) arranged to generate a phase modulated, PM, carrier signal and a PM clock signal, wherein the PM carrier signal has a PM carrier signal frequency and the PM clock signal has a PM clock signal frequency, and the PM carrier signal frequency is higher than the PM clock signal frequency, the PM carrier signal and the PM clock signal are phase modulated by the phase modulation data, and the phase modulation stage (20) comprises an adjustable delay stage (50) arranged to adjust a relative delay between the PM carrier signal and the PM clock signal to a target value.

Abstract: The present invention provides a method for analyzing a digital image comprising a plurality of pixels representing a scene. The method comprising steps of obtaining pixel chromaticity information, providing, combinations each having a corresponding surface and a corresponding illuminant, performing a global scene surface-illuminant classification by determining hypothesis scores, accumulating hypothesis scores, thereby obtaining a global illuminant/surface statistic representing an estimate of a distribution of illuminants and/or surfaces in the scene as represented by the digital image. Other methods are also provided. Apparatuses for carrying out the methods are also provided.

Abstract: Methods of changing a data rate of communication over an interface between a data transmitter and a data receiver are disclosed, wherein the data transmitter is associated with a first processor and transmitting data over the interface and the data receiver is associated with a second processor. The data transmitter transmits and the data receiver receives data over the interface at a first data rate. At the first processor, it is determined to change the first data rate to a second data rate. The data transmitter transmits and the data receiver receives a request to change the first data rate to the second data rate. In response thereto, a response message is transmitted by the data receiver and received by the data transmitter. When the response message comprises an acknowledgement to change the first data rate to the second data rate, the data transmitter transmits and the data receiver receives data over the interface at the second data rate.