Patents Assigned to STMicroelectronics
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Patent number: 8212547Abstract: An apparatus and method for measuring the duty cycle of a clock signal, the apparatus having a first multi-tap delay module, a second multi-tap delay module, and a multi-element detecting module, the input terminal of the first multi-tap delay module and the input terminal of the second multi-tap delay module coupled to an input node IN, the first multi-tap delay module receiving the clock signal and then providing it a first constant incremental delay at each tap, the second multi-tap delay module receiving the same clock signal CLK and then providing it a second constant incremental delay at each tap, and the multi-element detecting module determining the ratio of the number of outputs of the multi-element detecting module in which the sampled clock level is high with respect to the total number of steps covering one complete clock cycle.Type: GrantFiled: July 22, 2009Date of Patent: July 3, 2012Assignee: STMicroelectronics International N.V.Inventors: Anurag Ramesh Tiwari, Kallol Chatterjee
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Patent number: 8213194Abstract: A control device for regulating the constant output current of a flyback converter, the control device adapted to control the on time period and the off time period of a primary winding switch and including a first circuit adapted to multiply a first signal representative of current flowing through the primary winding and a second signal representative of an input voltage and outputting a signal representative of the multiplication, a second circuit adapted to compare the output signal of the first circuit and a third signal representative of the direct output voltage, the control device determining, on the basis of the output signal of the second circuit, the on time period and the off time period of the switch so that the output signal of the first circuit is equal to the signal representative of the direct output signal to have the output current of the flyback converter constant.Type: GrantFiled: May 18, 2010Date of Patent: July 3, 2012Assignee: STMicroelectronics Design and Application S.R.O.Inventor: Pavel Koutensky
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Publication number: 20120163425Abstract: Device comprising processing means (MT), transmission channels (VE1, . . . VEn), an antenna array for transmitting signals comprising a number of antennas (A11 . . . A1n) respectively associated with the transmission channels, a number of digital-analogue converters (DAC) and a number of phase-shifting means (MD1, . . . MDn) respectively associated with the antennas, said phase-shifting means (MD1, . . . MDn) being placed between the processing means (MT) and the digital-analogue converters (DAC) and including digital all-pass filters of FIR type (PT), the processing means comprising control means (MC) configured to adjust the coefficients and/or the order of the all-pass filters of FIR type.Type: ApplicationFiled: December 16, 2011Publication date: June 28, 2012Applicant: STMicroelectronics SAInventors: Mathieu Egot, Jonathan Muller, Andreia Cathelin, Didier Belot
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Publication number: 20120163053Abstract: A circuit including a switch controlling a capacitive element intended to receive an A.C. voltage, and a diode in parallel with the switch.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Tours) SASInventors: Antoine Passal, Laurent Gonthier
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Publication number: 20120161269Abstract: A front-side illuminated image sensor, including photodetection regions, charge transfer elements, and an interconnection stack, all formed at the surface of a semiconductor substrate, microcavities being formed in the interconnection stack in front of the photodetection regions, microcavities being filled with materials forming color filters including metal pigments, regions of a material forming a barrier against ionic diffusion extending on the lateral walls of the microcavities.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicants: STMicroelectronics S.A., Commissariat a l`Energie Atomique et aux Energies Alternatives, STMicroelectronics (Crolles 2) SASInventors: Christophe Aumont, Jean-Pierre Oddou, Jérôme Vaillant, Patrick Gros D'Aillon
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Publication number: 20120161573Abstract: A method of manufacturing microstructures, such as MEMS or NEMS devices, including forming a protective layer on a surface of a moveable component of the microstructure. For example, a silicide layer may be formed on one or more surfaces of a poly-silicon mass that is moveable with respect to a substrate of the microstructure. The process may be self-aligning.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Applicant: STMicroelectronics, Inc.Inventor: Ming Fang
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Publication number: 20120161678Abstract: A management apparatus is described of a rotating motor and a load during power loss; the apparatus comprises a first switching circuit coupled with the rotating motor and a controller of said first switching circuit. The controller is configured to drive the first switching circuit so as to convert a back-electromotive force voltage developed in the rotating motor into a power supply voltage for the load. The first switching circuit is driven in accordance with a first duty cycle. The apparatus comprises a second switching circuit coupled with the load and driven in accordance with a second duty cycle. The controller is configured to vary said first and said second duty cycles to keep the power supply voltage for the load above or equal to a threshold voltage.Type: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Applicant: STMicroelectronics S.r.l.Inventors: Giuseppe Maiocchi, Ezio Galbiati
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Publication number: 20120165635Abstract: Temperature variations in a patient's body can lead to inaccurate glucose readings. To compensate for changes in temperature, the temperature at a glucose sensing site can be sensed using a thermocouple. A compensated glucose level can be determined based on the temperature and the sensed glucose level. A glucose sensing device is described that includes a glucose sensor having a working electrode and a thermocouple having a junction positioned proximate the working electrode, with both the glucose and temperature sensors including the same metals.Type: ApplicationFiled: December 22, 2010Publication date: June 28, 2012Applicant: STMicroelectronics Asia Pacific Pte Ltd.Inventors: Praveen Kumar Radhakrishnan, Shian Yeu Kam
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Publication number: 20120163063Abstract: A complementary read-only memory (ROM) cell includes a transistor; and a bit line and a complementary bit line adjacent to the transistor; wherein a drain terminal of the transistor is connected to one of the bit line and the complementary bit line based on data programmed in the ROM cell.Type: ApplicationFiled: June 24, 2011Publication date: June 28, 2012Applicant: STMicroelectronics Pvt Ltd.Inventor: Jitendra DASANI
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Publication number: 20120163188Abstract: Apparatus and methods for wireless data transmission in a multimedia network are disclosed. Disclosed is a network having a source coupled to a sink using a virtual channel that includes a wireless communication channel. A source end of the system provides a packetizing data stream having a stream of payloads such that each payload is associated with its respective originating source stream. The system configured to encode the packetized data stream for wireless transport. A non-wireless source end of the system receives quality of service information from downstream. Thereby enabling adjustments to the source content and packetized data streams.Type: ApplicationFiled: March 8, 2012Publication date: June 28, 2012Applicant: STMicroelectronics, Inc.Inventor: Osamu Kobayashi
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Publication number: 20120162410Abstract: An integrated image sensor capable of determining the distance to objects contained in a scene including at least a set of first pixels and a set of second pixels, the first and second pixels being alternately distributed in an array, the first pixels having a different angular aperture than the second pixels.Type: ApplicationFiled: December 15, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Grenoble 2) SASInventor: Jérôme Vaillant
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Publication number: 20120163110Abstract: A memory circuit includes a memory cell configured to be re-writable. A write enable circuit is configured to enable writing a signal via a pair of bit lines to the memory cell depending on a write signal. A charge supply circuit is configured to supply a charge to at least one of the pair of bit lines. A charge supply controller is configured to control the charge supply circuit to disable the supply of charge and couple the write enable circuit to at least one of the pair of bit lines after a first determined period following the reception of the write signal.Type: ApplicationFiled: December 28, 2010Publication date: June 28, 2012Applicant: STMicroelectronics Pvt. Ltd.Inventors: Rakesh Kumar Sinha, Dhori Kedar Janardan, Sachin Gulyani
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Publication number: 20120161883Abstract: A circuit including a first oscillator configured to oscillate at a first frequency; a second oscillator configured to oscillate at a second frequency, the second frequency being different from and one of a harmonic or sub-harmonic of the first frequency; and a coupling between the first oscillator and the second oscillator configured to injection lock at least one of the first oscillator and second oscillator to the other of the first oscillator and second oscillator.Type: ApplicationFiled: July 6, 2011Publication date: June 28, 2012Applicant: STMicroelectronics Pvt. Ltd.Inventor: Prashant Dubey
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Publication number: 20120161802Abstract: A method for scan-testing of an integrated circuit includes the following steps carried out by the circuit itself: upon powering on of the circuit, watching for bit sequences applied to a use pin configured for receiving serial data from the exterior at the rate of a clock signal applied to a clock pin; configuring the circuit in a test mode when a bit sequence is identified as a test initialization sequence; connecting latches of the circuit in a shift register configuration, and connecting the shift register for receiving a test vector in series from the use pin; switching the transfer direction of the use pin to the output mode for providing to the exterior serial data at the rate of the clock signal; and connecting the shift register for providing its content, as a test result set, in series on the use pin.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics SAInventors: Philippe Lebourg, Paul Armagnat, Thomas Droniou
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Publication number: 20120162632Abstract: An optical range finder includes a light source adapted to produce illumination which impinges on a target. A detector receives a reflection of the illumination from the target, and a range code generator generates from the detected reflection a range code indicative of the range of the target from the range finder for each pulse. A signal processor receive plural range codes over a predetermined interval. A content addressable memory is used to count how many identical range codes are received during the predetermined interval. An identification is then made of the range code with the highest count, and that range code with the highest count is output as indicative of the range of the target from the range finder.Type: ApplicationFiled: September 23, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Research & Development) LimitedInventor: Neale Dutton
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Publication number: 20120162439Abstract: Aspects of the invention are directed towards an apparatus and method for detecting conventional and exotic cadences in video sequences. The cadence detector includes a motion auto-correlation unit using the inter-frame/field motion information to detect the cadence and a motion cross-correlation unit using the inter-frame/field motion information and the detected cadence to determine the cadence phase. The cadence detector also may include a reset signal generator to generate a reset signal to control the motion auto-correlation unit and the motion cross-correlation unit. The exotic cadence detector is robust and may support many cadences with reduced cadence detection latency as compared to the prior art.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: STMicroelectronics Asia Pacific Pte Ltd.Inventors: Xiaoyun Deng, Lucas Hui
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Publication number: 20120161198Abstract: A mesa-type bidirectional Shockley diode including a substrate of a first conductivity type; a layer of the second conductivity type on each side of the substrate; a region of the first conductivity type in each of the layers of the second conductivity type; a buried region of the first conductivity type under each of said regions of the first conductivity type, each buried region being complementary in projection with the other; and a groove arranged in the vicinity of the periphery of the component on each of its surfaces, the component portion external to the groove comprising, under the external portion of the upper and lower regions of the second conductivity type, regions of the first conductivity type of same doping profile as said buried regions.Type: ApplicationFiled: December 15, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Tours) SASInventors: Yannick Hague, Samuel Menard
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Publication number: 20120163064Abstract: A read only memory cell circuit is provided. The memory cell circuit includes at least one memory cell. A pair of bit lines associated with each memory cell is provided which form a complementary output. The at least one memory cell is configured to be coupled to first or second of the bit line pair.Type: ApplicationFiled: July 8, 2011Publication date: June 28, 2012Applicant: STMicroelectronics Pvt. Ltd.Inventors: Nitin Jain, Piyush Jain
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Publication number: 20120161200Abstract: A mesa-type bidirectional vertical power component, including a substrate of a first conductivity type; a layer of the second conductivity type on each side of the substrate; first regions of the first conductivity type in each of the layers of the second conductivity type; and, at the periphery of each of its surfaces, two successive grooves, the internal groove crossing the layers of the second conductivity type, second doped regions of the first conductivity type being formed under the surface of the external grooves and having the same doping profile as the first regions.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Tours) SASInventors: Yannick Hague, Samuel Menard
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Publication number: 20120161827Abstract: A clock circuit includes a frequency or phase comparator for receiving a reference clock signal, an LC VCO coupled to the comparator, a feedback divider coupled between the LC VCO and the comparator, a clock distribution chain coupled to the feedback divider and the first VCO, and a DLL or injection-locked ring-VCO coupled to the clock distribution chain for providing a plurality of phased output clock signals.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Applicant: STMicroelectronics (Canada) Inc.Inventors: Paul Madeira, John Hogeboom, Pat Hogeboom-Nivera
