Patents Assigned to STMicroelectronics
  • Publication number: 20140173282
    Abstract: An access method includes providing a secure element which stores at least a user key for decrypting one of the encrypted partitions; establishing a temporary secure channel between the secure element and the electronic apparatus; and authenticating in the electronic apparatus a user which is associated to one of the encrypted partitions. The method also includes transmitting an identification of the user authenticated and transmitting the user key from the secure element to the electronic apparatus over the temporary secure channel. The electronic apparatus is programmed to decrypt the encrypted partition and the encrypted partition of the authenticated user is not accessible to the authenticated user or to any other authenticated users in the electronic apparatus, if the user key of the authenticated user is not transmitted to the electronic apparatus.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventors: Vincenzo PASCARIELLO, Rosario BOSCO
  • Publication number: 20140167527
    Abstract: A chain of switches is connected between a first power supply line coupled to a first voltage and a second power supply line coupled to the sector. These switches are controllable by a control signal. The control signal is propagated from a first end of the first chain towards a second end of the first chain without control of the switches during this first propagation. The control signal is then propagated in the reverse direction from the second end towards the first end with a control of the switches during this second propagation starting from a group of at least one switch situated at the second end. There is a detection of the arrival of the control signal at the first end of the chain at the end of its propagation in the reverse direction.
    Type: Application
    Filed: October 24, 2013
    Publication date: June 19, 2014
    Applicant: STMicroelectronics SA
    Inventors: Severin Trochut, Emilie Rigal, Fabrice Blisson, Frederic Hasbani, Nicolas Seller
  • Publication number: 20140168516
    Abstract: An embodiment relates to a method for converting a digital image from a first color space to a second color space. The first color space is associated with an electronic source device, and the second color space is associated with a projection apparatus of digital images on a screen and coupled to the source device. The method includes: performing a first conversion on a first triad of parameters associated to the first color space by a first conversion matrix to map such a first triad in a third triad of parameters; the third triad is representative of a color space independent from the first and the second color spaces; performing a second conversion on the third triad of parameters by a second conversion matrix to map such a third triad of parameters in a second triad of parameters representative of the second color space.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Applicant: STMicroelectronics S.R.L.
    Inventors: Filippo NACCARI, Angelo BOSCO, Mirko GUARNERA
  • Publication number: 20140165722
    Abstract: A sensor device for an electronic apparatus, is provided with: a sensing structure generating a first detection signal; and a dedicated integrated circuit, connected to the sensing structure, detecting, as a function of the first detection signal, a first event associated to the electronic apparatus and generating a first interrupt signal upon detection of the first event. The dedicated integrated circuit detects the first event as a function of a temporal evolution of the first detection signal, and in particular as a function of values assumed by the first detection signal within one or more successive time windows, and of a relation between these values.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventors: Giuditta Roselli, Michele Tronconi, Fabio Pasolini
  • Publication number: 20140167193
    Abstract: A semiconductor device including: a semiconductor body having a first side and a second side opposite to one another; a first barrier element, which extends over the first side of the semiconductor body and is made of a first material configured to act as barrier against metal ions, for example chosen from among titanium, tantalum, titanium alloys or compounds, tantalum alloy; a magnetic element, which extends over the first barrier layer and is made of a second material having magnetic properties, for example a ferromagnetic material; a second barrier element, which extends over the magnetic layer and is made of a third material configured to act as barrier against metal ions, for example chosen from among titanium, tantalum, titanium alloys or compounds, tantalum alloys or compounds. The first and second barrier elements form a top encapsulating structure and a bottom encapsulating structure for the magnetic element.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventors: Paolo Iuliano, Francesca Milanesi, Vincenzo Palumbo, Sonia Pirotta
  • Patent number: 8755188
    Abstract: An electronic device includes a first and second integrated chip switch, each having a back (drain) surface and an opposite front (source) surface. An insulating package embeds the switches along with first, second and third heat sinks. The front surface of the first switch and back surface of the second switch are mounted to the first heat sink to couple first switch source to the second switch drain through the first heat sink in a half-bridge configuration. The first switch back surface is mounted to the second heat sink and the second switch front surface is mounted to the third heat sink. The package includes first, second and third openings which expose, respectively, the first, second and third heat sinks. The first heat sink opening is provided on one surface of the package, while the second and third heat sink openings are provided on an opposite surface of the package.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics S.r.l.
    Inventor: Cristiano Gianluca Stella
  • Patent number: 8754620
    Abstract: Described herein are principles for designing and operating a voltage regulator that will function stably and accurately without an external capacitance for all or a wide range of load circuits and characteristics of load circuits. In accordance with some of these principles, a voltage regulator is disclosed having multiple feedback loops, each responding to transients with different speeds, that operate in parallel to adjust an output current of the regulator in response to variations in the output current/voltage due to, for example, variations in a supply voltage and/or variations in a load current. In this way, a voltage regulator can respond quickly to variations in the output current/voltage and can avoid entering an unstable state.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics International N.V.
    Inventors: Nitin Bansal, Kallol Chatterjee
  • Patent number: 8755156
    Abstract: An integrated circuit protected against electrostatic discharges, including input/output pads and first and second power supply rails, and: a thyristor forward-connected between each input/output pad and the second rail, each thyristor including, between its anode gate and its anode, a resistor; between each thyristor and the first rail, a diode having its anode connected to the anode gate of the thyristor and having its cathode connected to the first rail via a resistor for adjusting the triggering; and a triggering device capable of conducting a current between the first and second rails when a positive overvoltage occurs between these rails.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: François Tailliet
  • Patent number: 8754753
    Abstract: The selection of at least one back-modulation element of an electromagnetic transponder from among a plurality of resistive and/or capacitive modulation elements of the load of an oscillating circuit of the transponder, including selecting the modulation element(s) according to a binary message received from a read/write terminal.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics S.A.
    Inventor: Jean-Pierre Enguent
  • Patent number: 8754456
    Abstract: An image sensor including at least one photodiode and at least one transistor formed in and on a silicon substrate, the assembly of the photodiode and of the transistor being surrounded with a heavily-doped insulating wall, wherein the silicon substrate has a crystal orientation (110).
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: June 17, 2014
    Assignees: STMicroelectronics (Crolles 2) SAS, STMicrolectronics SA
    Inventors: François Roy, Arnaud Tournier
  • Patent number: 8754858
    Abstract: A method to parameterize and recognize circular gestures on touch sensitive surfaces includes dividing the touch sensitive surface into four quadrants, detecting a transition from a first quadrant into a second quadrant, time-stamping and tracking each detected quadrant transition, and computing the time between quadrant transitions so that the circular speed and direction of the circular gestures on the touch sensitive surface can be detected. The detected direction can be either a clockwise or a counter-clockwise direction.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics Aisa Pacific Pte
    Inventor: Hup-Peng Goh
  • Patent number: 8754523
    Abstract: A surface-mounted electronic component including balls bonded to its front surface and, on the front surface, a protective resin layer having a thickness smaller than the ball height, wherein grooves extend in the resin layer between balls of the chip.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Romain Coffy
  • Patent number: 8753869
    Abstract: A cartridge for biochemical analysis includes a support, a structure, which is set on the support and contains wells for receiving a solution, and photodetectors on the support, in positions corresponding to respective wells.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics S.R.L.
    Inventors: Maria Eloisa Castagna, Giuseppe Catania, Salvatore Leonardi, Alberto Mario Piro
  • Patent number: 8755741
    Abstract: A satellite receive unit for receiving a plurality of satellite signals from a plurality of satellites, the satellite receive unit including: a plurality of low noise blocks each for receiving one or more of the satellite signals and providing a received signal, at least one of the low noise blocks receiving a plurality of the satellite signals; and a satellite signal processing unit including a plurality of branches each arranged to receive a corresponding one of the received signals from the plurality of low noise blocks, each branch having a multiplier arranged to weight the received signal by multiplying by a corresponding coefficient; and an adder arranged to add the weighted signals of each branch to generate an output satellite signal.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics S.A.
    Inventor: Pierre Busson
  • Patent number: 8756048
    Abstract: An embodiment of a design of one or more devices such as e.g. integrated circuits is ported from a source design technology to a target design technology by: —producing a standardized set of porting rules which translate device information related to the device or devices from the source design technology to the target design technology, and—creating a migrated design for the device or devices resulting from porting the CAD design from the source design technology to the target design technology by applying the standardized set of rules to the device information related.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: June 17, 2014
    Assignee: STMICROELECTRONICS S.r.l.
    Inventor: Giuseppe Greco
  • Patent number: 8754602
    Abstract: An embodiment of a motor controller includes a motor driver and a signal conditioner. The motor driver is configured to generate a motor-coil drive signal having a first component at a first frequency, and the signal conditioner is coupled to the motor driver and is configured to alter the first component. For example, if the first component of the motor-coil drive signal causes the motor to audibly vibrate (e.g., “whine”), then the signal conditioner may alter the amplitude or phase of the first component to reduce the vibration noise to below a threshold level.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 17, 2014
    Assignees: STMicroelectronics, Inc., STMicrolectronics S.r.l.
    Inventors: Frederic Bonvin, Ezio Galbiati
  • Patent number: 8752429
    Abstract: A MEMS gyroscope includes: a microstructure having a fixed structure, a driving mass, movable with respect to the fixed structure according to a driving axis, and a sensing mass, mechanically coupled to the driving mass so as to be drawn in motion according to the driving axis and movable with respect to the driving mass according to a sensing axis, in response to rotations of the microstructure; and a driving device, for keeping the driving mass in oscillation with a driving frequency. The driving device includes a discrete-time sensing interface, for detecting a position of the driving mass with respect to the driving axis and a control stage for controlling the driving frequency on the basis of the position of the driving mass.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics S.r.l.
    Inventors: Luciano Prandi, Carlo Caminada
  • Patent number: 8754682
    Abstract: A fractional rate LC VCO and compensating divider circuit to avoid bit-rate interference includes an LC PLL having an input for receiving a reference clock signal, an N-stage ring VCO with rotating injection having an input coupled to an output of the LC PLL and an output for providing an output clock signal, a first divider circuit having an input coupled to an output of the N-stage ring VCO and an output coupled to the LC PLL, a second divider circuit having an input coupled to the output of the LC PLL, and an M-stage reference ring PLL having an input coupled to an output of the second divider and an output coupled to the N-stage ring VCO.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: June 17, 2014
    Assignee: STMicroelectronics (Canada) Inc.
    Inventors: Anton Pelteshki, Pat Hogeboom-Nivera
  • Publication number: 20140160801
    Abstract: A fly-back type switched current regulator includes a primary transformer winding coupled to receive a rectified DC signal derived from an AC signal. The drain of a power transistor is coupled to the primary winding, with the source of the power transistor coupled to an input of a comparison circuit and a primary transformer winding sense resistor. A control terminal of the power transistor is coupled to an output of the comparison circuit. A capacitor stores a variable reference signal for application at a first capacitor terminal to another input of the differential circuit. The variable reference signal is compared to a winding current signal generated by the sense resistor by the comparison circuit. An injection circuit applies an AC signal derived from the rectified DC signal to a second terminal of the capacitor so as to modulate the stored variable reference signal. The regulator is coupled to drive LEDs.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: STMICROELECTRONICS, INC.
    Inventor: Thomas Stamm
  • Publication number: 20140165079
    Abstract: The present invention provides a technical solution for a unified driver used in a handheld device. An embodiment of the technical solution may comprise a unified driving method used in a handheld device, which method may comprise: determining driver types of currently installed hardware; setting a current dispatch table on the basis of the driver type and a unified dispatch table suitable for multiple hardware and driving corresponding hardware or software by calling the current dispatch table.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: STMicroelectronics R&D (Shanghai) Co., Ltd.
    Inventors: Christophe Quarre, Maoping Weng, Zhe Wu