Patents Assigned to STMicroelectronics
  • Patent number: 7461553
    Abstract: An oversampling electromechanical modulator, including a micro-electromechanical sensor which has a first sensing capacitance and a second sensing capacitance and supplies an analog quantity correlated to the first sensing capacitance and to the second sensing capacitance; a converter stage, which supplies a first numeric signal and a second numeric signal that are correlated to the analog quantity; and a first feedback control circuit for controlling the micro-electromechanical sensor, which supplies an electrical actuation quantity correlated to the second numeric signal.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Ernesto Lasalandra, Fabio Pasolini, Valeria Greco
  • Patent number: 7463139
    Abstract: In a method for driving electronic devices connected to a vehicle trailer tow connector a trailer electronic device control signal is receiving from a vehicle data communication network. In response to the received control signal, a solid state power control device is switched to connect electrical power to a selected pin of the trailer tow connector. The trailer electronic device control signal may be received from a wiring harness connector connected to a vehicle data communication network. A vehicle trailer tow connector module includes a module housing. A vehicle wiring connector and a trailer wiring connector are coupled to the module housing. A power control circuit is connected to a selected pin in the trailer wiring connector. A controller circuit is coupled to the vehicle wiring connector for receiving communication data from a vehicle data bus, and coupled by control lines to the power control circuit.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics, Inc.
    Inventors: Gary Joseph Burlak, Marian Mirowski
  • Patent number: 7463067
    Abstract: A switch block for FPGA architectures combining hardware and software techniques in order to reduce both active and standby leakage power.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Luca Ciccarelli, Andrea Lodi, Roberto Giansante, Luca Magagni, Roberto Canegallo, Roberto Guerrieri
  • Patent number: 7463903
    Abstract: The present invention relates to a high-speed interface for radio systems, in particular to a synchronous serial digital interface for a car radio. In an embodiment, the synchronous serial digital interface for at least dual radio receiver systems includes a master device and a slave device. The dual radio receiver system has an intermediate frequency. The master device and the slave device exchange data in a bi-directional manner on at least one communication channel; the master device and the slave device have a unique bit clock; the master device supplies a synchronization signal to the slave device. The synchronization signal has a frequency spectrum with an amplitude at the intermediate frequency lower than the amplitudes at the other frequencies of the synchronization signal.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Gianluigi Boarin, Francesco Adduci, Mattia Oddicini, Salvatore Matteo Crudo
  • Patent number: 7463454
    Abstract: A micro-electro-mechanical device formed by a body of semiconductor material having a thickness and defining a mobile part and a fixed part. The mobile part is formed by a mobile platform, supporting arms extending from the mobile platform to the fixed part, and by mobile electrodes fixed to the mobile platform. The fixed part has fixed electrodes facing the mobile electrodes, a first biasing region fixed to the fixed electrodes, a second biasing region fixed to the supporting arms, and an insulation region of insulating material extending through the entire thickness of the body. The insulation region insulates electrically at least one between the first and the second biasing regions from the rest of the fixed part.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.R.L.
    Inventors: Ubaldo Mastromatteo, Bruno Murari, Paolo Ferrari, Simone Sassolini
  • Patent number: 7463583
    Abstract: A WLAN communication system and algorithm that adaptively changes the data transmission rate of a communication channel based on changing channel conditions. The WLAN communication system or algorithm has two modes being a searching mode and a transmission mode. Furthermore, the WLAN communication system or algorithm incorporates an additive increase, multiplicative decrease (AIMD) function into the rate adaptation algorithm.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics Ltd.
    Inventor: Mounir Hamdi
  • Patent number: 7463997
    Abstract: In a pedometer device for detecting and counting steps of a user on foot, an accelerometer sensor detects a vertical acceleration generated during the step. A processing unit, connected to the accelerometer sensor, processes an acceleration signal relating to the acceleration in order to detect the occurrence of a step, and in particular compares the acceleration signal with a first reference threshold. The processing unit automatically adapts the first reference threshold as a function of the acceleration signal. In particular, the processing unit modifies the first reference threshold as a function of an envelope of the amplitude of the acceleration signal.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Fabio Pasolini, Ivo Binda
  • Patent number: 7464198
    Abstract: A method is provided for programming a DMA controller in a system on a chip. According to the method, a memory management unit translates a programming virtual address into a programming physical address according to a translation table. A first sub-block without discontinuity beginning at the programming physical address and ending at an end address equal to the physical address immediately preceding a first discontinuity is formed, with the first discontinuity being determined by a discontinuity module according to information supplied by a memory management unit. Some of the programming elements intended for the DMA controller are defined according to the first identified sub-block. Also provided is a system on a chip.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics SA
    Inventors: Albert Martinez, M. William Orlando
  • Patent number: 7463252
    Abstract: A method and circuit for displaying an image by activation of pixels of an array screen based on an image stored in digital form in memory point rows of a frame memory, having a stand-by mode that provides, at a frequency proportional to the display frequency, a cyclic succession of offset values; and for each row address of the frame memory, activating pixels of a screen line associated with said address offset by a same offset value based on the read states of the row associated with the address, and/or activating pixels of a screen line associated with the row address based on the read states of the frame memory row associated with the address offset by a same offset value.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: Céline Mas, Eric Benoit, Olivier Scouarnec, Olivier Le Briz
  • Patent number: 7463055
    Abstract: A switch block suitable to realize the connection between interconnection lines connected thereto of the type comprising at least a switching block connected to the interconnection lines and including at least a buffer stage in turn connected to a plurality of transistors. The switch block comprises a decoding stage inserted between a plurality of SRAM cells and respective control terminals of the plurality of transistors of the switching block.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics S.R.L.
    Inventors: Luca Ciccarelli, Carlo Chiesa, Andrea Lodi, Roberto Giansante, Mario Toma, Fabio Campi
  • Patent number: 7464129
    Abstract: The invention provides circuitry for carrying out a square root operation. The circuitry utilizes iteration circuitry for carrying out a plurality of iterations. The iteration circuitry includes a circuit for calculating a root multiple, the root multiple being a multiple of a current quotient value. The root multiple is used by the iteration circuitry to modify a current remainder.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: December 9, 2008
    Assignee: STMicroelectronics Limited
    Inventor: Tariq Kurd
  • Publication number: 20080301356
    Abstract: A method writes data in a non-volatile memory comprising memory cells that are erased before being written. The method comprises the steps of providing a main non-volatile memory area comprising target pages, providing an auxiliary non-volatile memory area comprising auxiliary pages, providing a look-up table to associate to an address of invalid target page an address of valid auxiliary page, and, in response to a command for writing a piece of data in a target page writing the piece of data as well as the address of the target page in a first erased auxiliary page, invalidating the target page, and updating the look-up table.
    Type: Application
    Filed: May 1, 2008
    Publication date: December 4, 2008
    Applicants: STMICROELECTRONICS SA, STMICROELECTRONICS S.R.L.
    Inventors: Francesco La Rosa, Antonino Conte
  • Publication number: 20080297415
    Abstract: A wireless device belongs to a wireless communication system and exchanges information within at least one band of frequencies. A method includes detecting a presence of at least one victim device operating within the at least one band of frequencies. The first wireless device is provided with an antenna array, and the detecting step includes analyzing an environment of the wireless device through the antenna array, and if the at least one victim device is detected, reducing interference by controlling the antenna array to steer the antenna beam toward an area located outside a vicinity of the potential victim device to exchanging information within the at least one band of frequencies with at least a second wireless device located in the area.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Applicant: STMicroelectronics SA
    Inventors: Friedbert Berens, Eric Achkar
  • Publication number: 20080297069
    Abstract: In a method for producing a control signal for regulating a drive current for driving an LED, a current through the LED is sensed, wherein the LED is driven by a power converter output, and wherein an output voltage of the power converter is proportionately controlled by a control signal. Next, a power supply voltage is sensed. The control signal is produced for the power converter, wherein the control signal is proportional to a difference between a reference voltage and the current through the LED. The control signal is then offset in response to the power supply voltage to reduce the current through the LED as the power supply voltage drops.
    Type: Application
    Filed: August 11, 2008
    Publication date: December 4, 2008
    Applicant: STMICROELECTRONICS, INC.
    Inventors: Jianwen Shao, Clifford J. Ortmeyer, II
  • Publication number: 20080299437
    Abstract: A polyelectrolyte membrane may include at least one styrene polymer or copolymer having a syndiotactic configuration and having sulfonic groups. The at least one styrene polymer or copolymer may be made in the form of a film in clathrate form. The film may include less than about 0.1% sulfonate groups of —SO3?Y+ general formula, in which Y may be a monovalent metal cation.
    Type: Application
    Filed: May 23, 2008
    Publication date: December 4, 2008
    Applicant: STMicroelectronics S.r.l.
    Inventors: Teresa Napolitano, Anna Borriello, Pasquale Agoretti
  • Publication number: 20080297208
    Abstract: A process inserts a random noise in a Time to Digital Converter (TDC) designed for calculating the phase error between a first high frequency signal FDCO with respect to a second reference signal, switching at a lower frequency.
    Type: Application
    Filed: February 7, 2008
    Publication date: December 4, 2008
    Applicant: STMICROELECTRONICS SA
    Inventors: Pierre Baudin, Cyril Joubert
  • Publication number: 20080297127
    Abstract: The switched-mode power supply includes a switching cell having an inductive element with two connections and several individually selectable outputs, and in which the two connections of the inductive element are joined respectively to at least two of the individually selectable outputs. It is thus possible to generate and regulate at least two different voltages, one positive and one negative.
    Type: Application
    Filed: March 24, 2008
    Publication date: December 4, 2008
    Applicant: STMicroelectronics SA
    Inventors: Christophe PREMONT, David Chesneau, Christophe Bernard
  • Publication number: 20080296658
    Abstract: An embodiment of a process is disclosed herein for fabricating a memory device integrated on a semiconductor substrate and comprising at least a nanocrystal memory cell and CMOS transistors respectively formed in a memory area and in a circuitry area. According to an embodiment, a process includes forming a nitride layer having an initial thickness, placed above a nanocrystal layer, in the memory area and the formation in the circuitry area of at least one submicron gate oxide. The process also provides that the initial thickness is such as to allow a complete transformation of the nitride layer into an oxide layer at upon formation of said at least one submicron gate oxide.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Applicant: STMICROELECTRONICS S.R.L.
    Inventor: Alfonso Maurelli
  • Publication number: 20080296572
    Abstract: An optical semiconductor device may include a semiconductor component having an optical sensor on a front face thereof, and a transparent plate having electrical connection lines on a rear face thereof and lying outside a free region of the rear face. The front face of the semiconductor component may be attached to the rear face of the transparent plate so that the optical sensor is adjacent the free region. The optical semiconductor device may also include electrical connectors electrically connecting the semiconductor component to the electrical connection lines, a sealing spacer extending only partway between the front face of the semiconductor component and the rear face of the transparent plate at the periphery of the optical sensor, and an encapsulating material for encapsulating the electrical connectors and a periphery of the semiconductor component on the rear face of the transparent plate. The sealing spacer may be structurally distinct from, abutting, and retaining the encapsulating material.
    Type: Application
    Filed: July 2, 2008
    Publication date: December 4, 2008
    Applicant: STMicroelectronics SA
    Inventor: Patrick Daniel PERILLAT
  • Publication number: 20080298310
    Abstract: A wireless system including a plurality of WRAN's operating on different channels identifies and addresses a number of important issues relating to the current CBP mechanism (in D0.3) used for inter-cell discovery and communication. The present invention provides fundamental remedies to respectively resolve these issues. Moreover, an Enhanced Coexistence Beaconing Protocol (CBP) is provided that allows efficient, scalable, and backward-compatible cross-channel inter-cell communications for IEEE 802.22 systems.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Applicant: STMicroelectronics, Inc.
    Inventor: Wendong Hu