STMicroelectronics N.V. Patent applications |
Patent application number | Title | Published |
20150341159 | NOISE SHAPED INTERPOLATOR AND DECIMATOR APPARATUS AND METHOD - An interpolator or decimator includes an elastic storage element in the signal path between first and second clock domains. The elastic element may, for example, be a FIFO which advantageously allows short term variation in sample clocks to be absorbed. A feedback mechanism controls a delta-sigma modulated modulo-N counter based sample clock generator. The elastic element combined with a delta-sigma modulator and counter creates a noise-shaped frequency lock loop without additional components, resulting in a much simplified interpolator and decimator. | 11-26-2015 |
20140286467 | NOISE SHAPED INTERPOLATOR AND DECIMATOR APPARATUS AND METHOD - Interpolator and decimator apparatuses and methods are improved by the addition of an elastic storage element in the signal path. In one exemplary embodiment, the elastic element comprises a FIFO which advantageously allows short term variation in sample clocks to be absorbed, and also provides a feedback mechanism for controlling a delta-sigma modulated modulo-N counter based sample clock generator. The elastic element combined with a delta-sigma modulator and counter creates a noise-shaped frequency lock loop without additional components, resulting in a much simplified interpolator and decimator. | 09-25-2014 |
20140131763 | SELF-BOOTSTRAPPING FIELD EFFECT DIODE STRUCTURES AND METHODS - A two terminal device which can be used for the rectification of the current. Internally it has a regenerative coupling between MOS gates of opposite type and probe regions. This regenerative coupling allows to achieve performance better than that of ideal diode. | 05-15-2014 |
20140078471 | IMAGE STABILIZATION SYSTEM FOR HANDHELD DEVICES EQUIPPED WITH PICO-PROJECTOR - It is proposed a method for the projection of a sequence of images onto a projection surface by a handheld device having an embedded projector, said method comprising, for an input image to be projected of said sequence of images:
| 03-20-2014 |
20130328113 | REGENERATIVE BUILDING BLOCK AND DIODE BRIDGE RECTIFIER AND METHODS - A rectifier building block has four electrodes: source, drain, gate and probe. The main current flows between the source and drain electrodes. The gate voltage controls the conductivity of a narrow channel under a MOS gate and can switch the RBB between OFF and ON states. Used in pairs, the RBB can be configured as a three terminal half-bridge rectifier which exhibits better than ideal diode performance, similar to synchronous rectifiers but without the need for control circuits. N-type and P-type pairs can be configured as a full bridge rectifier. Other combinations are possible to create a variety of devices. | 12-12-2013 |
20130230076 | METHOD OF CODING AND DECODING A PULSE SIGNAL, IN PARTICULAR AN UWB-IR SIGNAL, AND CORRESPONDING DEVICES - A method is for decoding a pulse signal modulated through a transmitted reference modulation scheme. The modulated pulse signal may include, repetitively, a reference pulse followed by an information pulse delayed with a delay. The method may include subtracting or adding from the modulated pulse signal, a version of the modulated pulse signal delayed with the delay for obtaining a processed signal, and performing a non-coherent detection on the processed signal. | 09-05-2013 |
20120211798 | ADJUSTABLE FIELD EFFECT RECTIFIER - An Adjustable Field Effect Rectifier uses aspects of MOSFET structure together with an adjustment pocket or region to result in a device that functions reliably and efficiently at high voltages without significant negative resistance, while also permitting fast recovery and operation at high frequency without large electromagnetic interference. | 08-23-2012 |
20120170742 | METHOD TO DE-CORRELATE ELECTRIC SIGNALS EMITTED BY AN IC CARD - A method is to de-correlate electric signals emitted by an IC Card during computations as well as sensitive data involved in such computations. The method includes executing functions introducing respective electric signals which do not involve the sensitive data. Each of the functions is triggered by a timer having a value which is different at each step of executing the functions. | 07-05-2012 |
20110202948 | METHOD FOR DETECTING POTENTIALLY SUSPICIOUS OPERATION OF AN ELECTRONIC DEVICE AND CORRESPONDING ELECTRONIC DEVICE - A method may be for detecting potentially suspicious operation of an electronic device configured to operate in the course of activity sessions. The method may include within the device, a metering, from an initial instant of the number of activity sessions having a duration below a first threshold, and a comparison of this number with a second threshold. | 08-18-2011 |
20110051305 | Series Current Limiter Device - Semiconductor protection devices, and related methods and systems, especially devices for providing series current limiting. The device typically comprises two regenerative building blocks and/or MOSFETs connected back-to-back in series, where one of the MOSFETs/Regenerative Building Blocks has an extra voltage probe electrode that provides a regenerative signal with self-limited voltage to the other via coupling to its gate electrode. | 03-03-2011 |
20100220767 | HIGH DATA RATE TRANSMISSION IN A MULTI BAND OFDM SYSTEM - Method for transmitting information in a multi-band OFDM system, comprising delivering according to a given communication standard an initial data stream (IDS), splitting ( | 09-02-2010 |
20100219477 | METHOD FOR THE PRODUCTION OF MOS TRANSISTORS - The invention relates to a method for the production of both MOS transistors with extremely low leakage currents at the pn junctions and logic/switching transistors, whose gates are laterally defined by spacers in a p-substrate or a p-well in an n-substrate. The aim of the invention is to provide a method for the production of MOS transistors with extremely low leakage currents that allows for parallel logic/switching transistors. This is achieved by initially carrying out an LDD ion implantation via the edges of the gates in order to form an LDD region and subsequently removing the spacers by means of an anisotropic etching step exhibiting high selectivity in relation to the gate and substrate materials, including the covering layers thereof, or by covering the MOS transistors with an extremely low leakage currents prior to isotropic spacer production such that the spacers are formed exclusively on the edges of the gates of the logic/switching transistors, while the MOS transistors with an extremely low leakage current always remain connected solely via the LDD region, and there is no high dose implantation in the S/D regions of these MOS transistors with extremely low leakage currents. | 09-02-2010 |
20100106896 | METHOD FOR WRITING AND READING DATA IN AN ELECTRICALLY ERASABLE AND PROGRAMMABLE NONVOLATILE MEMORY - A method for writing and reading data in a main nonvolatile memory having target pages in which data are to be written and read, the method including providing a nonvolatile buffer having an erased area, providing a volatile cache memory, and receiving a write command to update a target page with updating data the length of which can be lower than the length of a page. The method also includes, in response to the write command, writing the updating data into the erased area of the nonvolatile buffer, together with management data of a first type, and recording an updated version of the target page in the cache memory or updating in the cache memory a previously updated version of the target page. | 04-29-2010 |
20100046669 | METHOD AND SYSTEM FOR PROCESSING IMPERFECTIONS OF A RADIO FREQUENCY TRANSMISSION SUBSYSTEM AND COMMUNICATION APPLIANCE INCORPORATING SUCH A TRANSMISSION SUBSYSTEM - A method processes defects in a radio frequency transmission subsystem due to elements therein. The defects may include mismatch between two channels in phase quadrature in the transmission subsystem and a transposition signal leaking from a first frequency transposition stage of the transmission subsystem. The method may include calibration processing including estimating compensation parameters representative of the defects. The estimating may include delivering, into the transmission subsystem upstream of the elements creating the defects, a reference signal having a reference frequency, obtaining, downstream of the first transposition stage, of a resultant reference signal, and obtaining, from the resultant reference signal, of an approximate value for each compensation parameter. The method also may include compensating for the defects by injecting the approximate values into the transmission subsystem. | 02-25-2010 |
20100022214 | METHOD AND DEVICE FOR PROCESSING THE DC OFFSET OF A RADIOFREQUENCY RECEPTION SUBSYSTEM - A method may compensate for direct current (DC) offset in a radio frequency reception device. The method may include partitioning an analog portion of the reception device into a plurality of zones, for each zone, calibrating initial DC offset compensation to be applied within an operating range of a respective zone, the operating range of the other zones being limited to a threshold operating range, and determining DC offset compensation to be applied to the reception device throughout the operating range based on the basic DC offset compensations. | 01-28-2010 |
20100020903 | METHOD AND DEVICE FOR PROCESSING THE DC OFFSET OF A RADIOFREQUENCY RECEPTION SUBSYSTEM - A method may compensate for direct current (DC) offset in a radio frequency reception device. The method may include partitioning an analog portion of the reception device into a plurality of zones, for each zone, calibrating initial DC offset compensation to be applied within an operating range of a respective zone, the operating range of the other zones being limited to a threshold operating range, and determining DC offset compensation to be applied to the reception device throughout the operating range based on the basic DC offset compensations. | 01-28-2010 |
20090296784 | METHOD AND DEVICE FOR NOTCHING THE TRANSMISSION BAND OF AN ANALOG SIGNAL, IN PARTICULAR FOR A DETECT AND AVOID (DAA) OPERATION MODE OF AN MB-OFDM SYSTEM - A transmission band of an analog signal including successive symbols to be transmitted is notched, where each symbol includes sub-carriers to be modulated. In particular, in each symbol the sub-carriers corresponding to a part of the transmission band to be notched are suppressed. In addition, in each symbol a chosen part of the remaining sub-carriers to be modulated is also suppressed. | 12-03-2009 |
20090221318 | METHOD OF DE-INTERLEAVING INTERLEAVED DATA SAMPLES SEQUENCES, AND ASSOCIATED SYSTEM - A method for de-interleaving S | 09-03-2009 |
20090213901 | METHOD FOR MANAGING THE OPERATION OF A WIRELESS APPARATUS CONFIGURED TO EXCHANGE INFORMATION WITH A MILLIMETER-WAVE COMMUNICATION DEVICE, AND CORRESPONDING APPARATUS - A wireless apparatus includes a millimeter-wave communication interface configured to exchange information within a millimeter-wave communication network, an UWB communication interface and control means or circuitry configured to activate the UWB interface for communicating location indication to the communication network according to an UWB communication standard. The location indication is intended for locating the wireless apparatus within the network. | 08-27-2009 |
20090207959 | METHOD AND DEVICE FOR DOWNCONVERTING THE SAMPLING FREQUENCY OF A DIGITAL SIGNAL, FOR EXAMPLE IN A NON-INTEGER FREQUENCY RATIO - A method for converting a sampling frequency of a digital signal sampled at a first sampling frequency includes receiving digital signal input samples, and forming output samples corresponding to a second sampling frequency based on the digital signal input samples and an interpolation filter. The first sampling frequency may be larger than the second sampling frequency. The method may further include delivering the output samples. Forming output samples includes, for each of the digital signal input samples, updating current values of N successive output samples with N contributions. The N contributions may be respectively calculated based on a value of a current input sample of the digital input samples weighted by values of N filter coefficients associated with the current input sample, N being fixed and identical for all the digital signal input samples regardless of a value of the conversion ratio between the first and second sampling frequencies. | 08-20-2009 |
20090036084 | METHOD FOR DETECTING THE EVETUAL PRESENCE OF AN INTERFERER, FOR EXAMPLE A RADAR SIGNAL, ADAPTED TO INTERFERE WITH A WIRELESS DEVICE, FOR EXAMPLE A UWB DEVICE, AND CORRESPONDING DEVICE - The method is for detecting the eventual presence of an interferer that is adapted to interfere with a wireless device. The wireless device is provided with at least one receiving chain including an analog to digital conversion stage. The method includes receiving on the receiving chain an incident signal, and delivering to the ADC stage an analog signal from the incident signal. The method further includes elaborating or determining a binary information from a binary signal delivered by the ADC stage and representative of the level of the analog signal, analyzing a temporal evolution of the binary information and detecting the presence of the interferer from the analysis. | 02-05-2009 |
20080291888 | Method and Device for Carrying Out Flexible Demodulation in an Ofdm-Cdma System - This method for carrying out the flexible demodulation of data modulated following an amplitude modulation in quadrature is used in a communications system employing a code division multiple access technique (CDMA) and an optical frequency division multiplexing (OFDM) using non-binary spread codes. The invention includes steps for determining a simplified expression specific to the logarithm of the likelihood ratio. | 11-27-2008 |
20080240271 | METHOD OF MANAGING THE OPERATION OF A WIRELESS COMMUNICATION DEVICE AND CORRESPONDING WIRELESS DEVICE - The method is for managing the operation of a wireless communication device including several different communication modules respectively adapted to operate according to several given communication protocols including a UWB module operating according to a UWB protocol based on an OFDM modulation scheme. The method includes controlling the UWB module for scanning a chosen frequency band, and managing a communication to be performed by the device on the basis of the scanning result. | 10-02-2008 |