Abstract: A method and system for measuring a time constant RC of an integrated electronic circuit is provided. This integrated circuit may be made up of a first hardware component and of a second hardware component wherein one of the hardware components is a resistive element and the other is a capacitive element. The first and the second hardware components are connected to an inverting input of an operational amplifier of an integrator of a delta-sigma modulator. A DC voltage is applied to the modulator input. The output signal Qs of the modulator is measured with the aid of an analog/digital converter, and the value of the time constant RC is determined on the basis of at least one measurement of the level of the DC component of the output signal Qs of the modulator carried out with the air of a measurement counter circuit.

Abstract: A device implementing a scheme for reduction of pop-up noise is disclosed. The device comprises an audio sub-system (100) having an integrator (112) for amplifying an input signal (133) and a modulation circuit (114) including one or more comparators. The audio subsystem (100) is further provided with a feedback loop (142) across the integrator (112) and the modulation circuit (114) to calibrate an offsets outputs of the integrator (112) and the modulation circuit (114). The feedback loop (142) includes an integrator-offset loop (202) across the integrator (112) to calibrate an offset (136) in the output of the integrator (112), and an offset calibration loop (302) across the modulation circuit (114) to calibrate an offset (140) in the output of the modulation circuit (114).

Abstract: According to a method of Successive Approximation Register (SAR) analog to digital conversion, N+1 SAR cycles are performed to obtain an output digital code having N bits. An analog signal is sampled and obtained. After execution of the first N?1 SAR cycles, the Nth SAR cycle is performed by setting a Nth tentative analog signal corresponding to a provisional digital code and comparing the Nth tentative analog signal with the sampled analog signal to obtain a Nth comparison result. The (N+1)th SAR cycle is performed by setting a (N+1)th tentative analog signal based on the Nth comparison result, comparing the (N+1)th tentative analog signal with the sampled analog signal to obtain a second comparison result, and correcting the provisional digital code based on the (N+1)th comparison result to obtain the output digital code. The Nth and (N+1)th SAR cycles each comprise a plurality sub-comparisons and yield a set of sub-results.

Abstract: A process for computing cubic metric used for performing Maximum Power Reduction (MPR) in the transmitter of a User Equipment communicating with a base station (BS), said cubic metric computation being performed before each time slot of said uplink transmission of data; said process being characterized in that it involves the steps of: —using PN generators (1-4) for generating random data which are used for performing said cubic metric computation, and —using the result of said computation for applying said Maximum Power Reduction (MPR) for each time slot of said uplink transmission.

Abstract: A method of processing a paging message, the method being suitable for a User Equipment (UE) for a wireless telecommunication system, and comprising the steps of:—monitoring a Paging Indicator (PI) included in a Paging Indicator Channel (PICH) message;—upon reception (210) of a Paging Indicator (PI) relevant to said User Equipment, detecting and decoding a paging (PCH) channel in order to decode a corresponding paging message (220);—computing and checking the CRC (230) of said paging message and, in case of failure of the CRC check, performing the following steps:—performing (240, 250) a partial checking of said paging message, said partial checking being limited to a number of fields of said paging message;—determining whether said paging message is relevant to one single UE (260);—if said paging message is relevant to one single UE, replacing (261) the bits not relevant to said single UE by default bits and computing and checking (262) a new CRC—if the new CRC check succeeds, forwarding the processed paging

Abstract: The present invention relates to a method of performing inter System radio measurements in compressed mode. A communication device, camped on a first radio communication network, performing the method determines whether a given measurement gap coincides in time domain with a measurement position defined by the communication device. In case the measurement position coincides with the position of the measurement gap, then the communication device performs consequently during the measurement gap a first type of measurement with respect to the first communication network and a second type of measurement with respect to a second communication network.

Abstract: The invention concerns a testing method detecting misconnected mechanical contacts between off-chip antenna and on-chip antenna circuit, wherein the testing method is a Built-In Self-Test method including a step of measuring at least one electrical parameter of on-chip antenna circuit connected to off-chip antenna which is representative of state of connection of said mechanical contacts.

Abstract: A sigma-delta modulator for an ADC, passes an input signal to a loop filter, then to a multi-bit quantizer of the modulator. An output of the quantizer is passed to a digital filter, and a feedback signal is passed back to the loop filter, the feedback signal having fewer bits than are produced by the multi-bit quantizer. The digital filter has an order greater than one in the passband of the sigma-delta modulator.

Abstract: The method of operating a multiple SIM phone, the phone being connectable to at least first and second SIM applications includes configuring the phone and operating the phone. The phone is configured by selecting a dual standby mode with a specific master configuration of the first SIM application, registering the second SIM application on a wireless network, activating a call forwarding function from the second SIM application to the first SIM application, registering the first SIM application on the wireless network. The phone is operated by processing standby functions of the first SIM application, receiving any incoming call via the first SIM application, and handling requests for outgoing calls from the first SIM application.

Abstract: A method of and a mobile terminal for transmitting data over an uplink from a mobile terminal to a base station, the data being transmitted over radio bursts, the method comprising and the mobile terminal being suitable for: assessing radio propagation conditions between the mobile terminal and the base station; determining if the radio propagation conditions fulfil a predetermined condition; wherein if it is determined that the radio propagation conditions fulfil the predetermined condition the transmission energy parameters of the signal bursts are adapted to reduce the energy used to transmit the data.

Abstract: Method of cutting off a transmission signal of a main transmitter relayed by a cell of a base station and associated system. According to this method, the transmission signal is cut off:—if the power of the transmission signal emitted by the main transmitter is greater than the power of each transmission signal of other transmitters relayed by the same cell of the base station, and—if the power of the transmission signal of the main transmitter does not decrease after several identical successive transmitted-power regulating commands (TPC) emitted by the base station.

Abstract: Electronic apparatus comprising bluetooth type communication means allowing data wireless data communication, including audio communication, to a satellite (20), said device including a main baseband host (100) and a bluetooth type controller (200); said main baseband host comprising a PROFILE layer allowing the generation of AT type command arranged for the activation of an alarm circuit on said satellite.

Abstract: In mobile wireless communication systems the channel between the transmitter and receiver varies during a transmission. This is often referred to as fading, of which different kinds exist—each resulting in different impairments with specific properties. A low complexity scheme is described to reduce the noise created by inter-carrier interference or ICI. The method makes use of the guard interval and assumes slow variation of the channel. It is not restricted to wireless communication and can be used in any environment with varying channels.

Abstract: A method for testing a band allocated to a non serving cell for a wireless OFDM communication systems, involving the step of:—configuring the RF front end circuit to receive a wide band signal covering multiple candidates of bandwidths (BW1) which are likely to be allocated to said non serving cell;—computing the received OFDM symbols;—entering into a first loop for successively testing two consecutive bandwidth candidates (BWj), said testing comprising the steps of:—computing a first non coherent power estimation (RSRP_Excessi) of the received signal on the basis of the reference signals (RS) existing in the non overlapping range of said two consecutive bandwidth (BWi);—computing a second coherent power estimation (RSRP_ExcesSj_coh)of the received signal on the basis of the reference signals (RS) existing in the non overlapping range of said two consecutive bandwidth (BWi);—comparing said first and said second estimation and determining and determining whether the tested bandwidth (BWi) is allocated to said

Abstract: Systems and method provide for cell reconfirmation methods for a multi-Radio Access Technology (RAT) capable User Equipment (UE). A method for performing a cell reconfirmation method by a multi-Radio Access Technology (RAT) capable User Equipment (UE), the method includes: performing, by the UE, cell reconfirmation using information derived from a Normal Burst (NB) of a transmitted Global System for Mobile communication (GSM) radio signal, wherein the cell reconfirmation verifies an identity of a GSM cell associated with the transmitted GSM radio signal. The method can further include: operating the multi-RAT capable UE in a serving cell of a first RAT; and selecting the cell reconfirmation method to reconfirm a Global System for Mobile (GSM) communication neighbor cell located in a second RAT which is a GSM RAT, wherein a first cell reconfirmation method uses a received Normal Burst (NB) and a second cell reconfirmation method uses a received Synchronization Burst (SB).

Abstract: The present invention generally relates to the management of a configuration of a first device. The first device includes a control unit and an interface unit managing a communication interface. The communication interface comprises at least one resistive line having a resistance value. The resistance value allows the interface unit to identify a configuration for at least one second device adapted to be linked to the first device via the communication interface. The interface unit: /a/ detects a change of the resistance value on the resistive line corresponding to a configuration of said second device; /b/ processes said change of the resistance value to adapt the configuration of the first device according to the configuration of said second device.

Abstract: An embodiment of a voltage regulation circuit includes a DC-DC converter configured to control a first current provided from a source to a load via a first output, and a linear regulator configured to control a second current provided from the source to the load via a second output. The voltage regulation circuit further includes a single control loop configured to receive an output voltage across the load and a first reference voltage. The single control loop is further configured to generate a single error signal between the output voltage across the load and the first reference voltage and to control the DC-DC converter and the linear regulator using the single error signal such that when the single error signal is outside of a predetermined range the DC-DC converter provides the first current to the load and the linear regulator provides the second current to the load simultaneously.

Abstract: A combination of a phase shifter, a measurement receiver, and an offset estimator enable the d.c. offset in the transmit path of a quadrature transmitter to be distinguished from the d.c. offset in the measurement receiver. The measurement receiver performs a first measurement on the transmit path output with a “normal” phase shift of 0 degrees and 90 degrees for in-phase (I) and quadrature (Q) components, and a second measurement with a “special” phase shift for the I and Q components. In one embodiment, the “special” phase shift for the I and Q components is 180 degrees and 270 degrees, respectively.

Abstract: The method disclosed herein is implemented in a radio receiver to detect an AWGN channel, where the radio receiver comprises a rake receiver. The radio receiver receives signals transmitted via a propagation channel from a transmitter, and determines that the propagation channel is an AWGN channel when a filtered version of a minimum value of a metric is lower than a threshold value. The metric relates to a difference between a normalized measured power profile of the propagation channel and a normalized power template, which normalized power template is dependent on predetermined sampling timing shifts and on rake finger positions within the rake receiver.

Abstract: A multi-level sigma-delta Analog to Digital converter provides multi-level outputs using a quantizer with reduced quantization levels. The converter comprises a direct path comprising a computation block, an analog integrator, a digital integrator and the quantizer with reduced quantization levels. Further, the converter comprises a feedback path arranged to provide to the computation block a feedback analog signal. The feedback analog signal is injected via the feedback path and the computation block directly at the input terminal of the quantizer. The converter allows reduction of the complexity of the quantizer.