Patents Assigned to STMicroelectronics
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Publication number: 20120134324Abstract: A method and apparatus for negotiating an idle subchannel set for a wireless data transmission. The method includes transmitting an indication of a first set of idle subchannels to a wireless station. The method also includes receiving an indication of a second set of idle subchannels from the wireless station. The method further includes determining a final set of idle subchannels based on the indication of the first set of idle subchannels and the indication of the second set of idle subchannels.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Applicant: STMicroelectronics, Inc.Inventors: Liwen Chu, George A. Vlantis
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Publication number: 20120132636Abstract: An oven may include a housing having a cooking receptacle configured to hold content therein, a heating element carried by the housing and configured to heat the content, and a proximity detector carried by the housing in the cooking receptacle and configured to detect surface movement of the content. The proximity detector may include at least one SPAD.Type: ApplicationFiled: September 23, 2011Publication date: May 31, 2012Applicant: STMicroelectronics (Research & Development) LimitedInventor: John Kevin MOORE
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Publication number: 20120132809Abstract: A radiation sensor includes first and second pixels with a radiation absorption filter positioned over the first pixel and an interference filter positioned over both the first and second pixels. The combined spectral response of the absorption filter and the first pixel has a first pixel pass-band and a first pixel stop-band. The spectral response of the interference filter has an interference filter pass-band which is substantially within the first pixel pass-band for radiation incident on the interference filter at a first angle of incidence, and substantially within the first pixel stop-band for radiation incident on the interference filter at a second angle of incidence greater than the first angle of incidence.Type: ApplicationFiled: September 21, 2011Publication date: May 31, 2012Applicant: STMicroelectronics (Research & Development) LimitedInventor: Ewan Findlay
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Publication number: 20120132817Abstract: An embodiment of a photomultiplier device is formed by a base substrate of insulating organic material forming a plurality of conductive paths and carrying a plurality of chips of semiconductor material. Each chip integrates a plurality of photon detecting elements, such as Geiger-mode avalanche diodes, and is bonded on a first side of the base substrate. Couplings for photon-counting and image-reconstruction units are formed on a second side of the base substrate. The first side of the base substrate is covered with a transparent encapsulating layer of silicone resin, which, together with the base substrate, bestows stiffness on the photomultiplier device, preventing warpage, and covers and protects the chips.Type: ApplicationFiled: November 23, 2011Publication date: May 31, 2012Applicant: STMicroelectronics S.r.I.Inventors: Mark Andrew SHAW, Federico Giovanni ZIGLIOLI
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Publication number: 20120133836Abstract: A frame level noise estimate for an image can be determined. An image processor includes a high pass filter unit configured to perform high-pass spatial filtering of image data for first and second frames to produce high-pass spatially filtered information for the first frame and the second frame. A cumulative histogram generator is configured to analyze the high-pass spatially filtered information for the first frame and the second frame to produce a first cumulative histogram for the first frame and a second cumulative histogram for the second frame. A comparator is configured to determine a difference value between the first and second cumulative histograms. A mapping unit is configured to determine an estimated noise value based on the difference value.Type: ApplicationFiled: November 29, 2010Publication date: May 31, 2012Applicant: STMicroelectronics Asia Pacific Pte. Ltd.Inventors: Anna Raffalli, Haiyun Wang, Lucas Hui
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Publication number: 20120137198Abstract: A method for decoding tail-biting convolutional codes. The method includes initializing a correction depth, selecting a first starting state from a set of encoding states, and initializing a metric value for the selected starting state as zero and the other states as infinity. The input bit stream is read and a Search Depth Viterbi algorithm (SDVA) is performed to determine path metrics and identify a minimum-metric path. The ending state for the minimum-metric path is determined and the output for this ending state is identified as “previous output.” A second starting state is set to the ending state of the minimum-metric path, and symbols equal to the correction depth from the previous output are read. The SDVA is performed on the second set of read symbols to generate a corrected output. A decoded output is generated by replacing symbols at the beginning of the previous output with the corrected output.Type: ApplicationFiled: February 7, 2012Publication date: May 31, 2012Applicant: STMicroelectronics (Beijing) R&D Company Ltd.Inventors: Wuxian Shi, Juan Du, Yigun Ge, Guobin Sun
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Publication number: 20120132711Abstract: A monitoring device may include a core cell including a detection circuit, and a radio frequency (RF) tag antenna configured to exchange data with a data acquisition reader device, and a single-tier corolla having sensor cells around the core cell and covering a monitoring area. The sensor cells may be configured to convert a change of a parameter at the cell location. The detection circuit may be configured to detect a change in the parameter and location based upon excitation by the reader device.Type: ApplicationFiled: September 22, 2011Publication date: May 31, 2012Applicant: STMicroelectronics S.r.l.Inventors: Manuela LA ROSA, Davide Giuseppe Patti
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Publication number: 20120133955Abstract: An electronic device may include a housing having a mousing surface, and a navigation device carried by the housing and comprising a proximity detector. The proximity detector may include a single photon avalanche diode (SPAD) configured to detect movement of an activator adjacent the mousing surface. For example, the proximity detector may detect movement along three axes.Type: ApplicationFiled: September 23, 2011Publication date: May 31, 2012Applicant: STMicroelectronics (Research & Development) LimitedInventor: David Patrick BAXTER
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Publication number: 20120133617Abstract: An control device may control an associated electronic device and parameter for the same. The control device may include a proximity detector. The proximity detector may include a single photon avalanche diode (SPAD). The proximity detector may be configured to control the electronic device and change the parameter.Type: ApplicationFiled: September 23, 2011Publication date: May 31, 2012Applicant: STMicroelectronics (Research & Development) LimitedInventor: Kenneth DARGAN
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Patent number: 8187943Abstract: An embodiment of a MOS device resistant to ionizing-radiation, has: a surface semiconductor layer with a first type of conductivity; a gate structure formed above the surface semiconductor layer, and constituted by a dielectric gate region and a gate-electrode region overlying the dielectric gate region; and body regions having a second type of conductivity, formed within the surface semiconductor layer, laterally and partially underneath the gate structure. In particular, the dielectric gate region is formed by a central region having a first thickness, and by side regions having a second thickness, smaller than the first thickness; the central region overlying an intercell region of the surface semiconductor layer, set between the body regions.Type: GrantFiled: February 23, 2010Date of Patent: May 29, 2012Assignee: STMicroelectronics S.r.l.Inventors: Alessandra Cascio, Giuseppe Curro
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Patent number: 8188525Abstract: An image sensor includes a substrate, transparent layers covering the substrate and delimiting an exposition surface exposed to light, separate photosensitive areas at the substrate level and, for each photosensitive area, a first optical means capable of deviating towards the photosensitive area light reaching a central region of a portion of the exposition surface. The sensor further includes, for each photosensitive area, a second optical means, separate from the first optical means, capable of deviating towards the photosensitive area light reaching a peripheral region of the portion of the exposition surface surrounding the central region.Type: GrantFiled: May 17, 2006Date of Patent: May 29, 2012Assignee: STMicroelectronics S.A.Inventor: Jerome Vaillant
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Patent number: 8191125Abstract: An embodiment comprises a semiconductor integrated circuit for restricting the rate at which data may be accessed from an external memory by a device coupled to the circuit. The rate of data access is restricted if the data access satisfies one or more conditions. For example, one of the conditions is that the device which is requesting the data is insecure. Another condition is that the requested data is privileged. A data access monitor is provided to monitor data accesses and to is arranged to generate an access signal to indicate whether the conditions are satisfied or not. A bandwidth comparator determines whether data access exceeds a threshold and, if so, the semiconductor integrated circuit is impaired to prevent further data access.Type: GrantFiled: December 17, 2004Date of Patent: May 29, 2012Assignee: STMicroelectronics LimitedInventors: Andrew Dellow, Rodrigo Cordero
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Patent number: 8189054Abstract: A motion estimation method is provided for processing successive images in an image sequence, with a motion vector being associated with each of the processed images. For a current image, motion vectors associated with images that precede the current image in the sequence are selected. Candidate motion vectors are generated from the motion vectors that are selected. A motion vector is elected from among the candidate motion vectors. Information that associates the elected motion vector with the current image is stored in memory. At least one of candidate motion vectors is an acceleration vector generated from the acceleration between first and second motion vectors averaged relative to a first and second images, with the first and second images being distinct and preceding the current image in the image sequence. A motion vector averaged relative to a given image is obtained from selected motion vectors associated with images preceding the given image.Type: GrantFiled: December 14, 2005Date of Patent: May 29, 2012Assignee: STMicroelectronics S.A.Inventor: Pascal Mellot
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Patent number: 8186568Abstract: A process for assembling two parts of an integrated electronic circuit has two successive steps. During a first step, the two circuit parts are made into a single unit by molecular bonding, realized on respective application surfaces of the two parts. During a second step, electrical connections are formed from connection portions already present in the application surfaces of the two circuit parts. The connections formed extend across the bonding interface, and are compatible with a high reliability and a high level of integration of the circuit.Type: GrantFiled: February 21, 2008Date of Patent: May 29, 2012Assignee: STMicroelectronics (Crolles 2) SASInventors: Philippe Coronel, Perceval Coudrain, Pascale Mazoyer
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Patent number: 8187946Abstract: A ring shaped heater surrounds a chalcogenide region along the length of a cylindrical solid phase portion thereof defining a change phase memory element. The chalcogenide region is formed in a sub-lithographic pore, so that a relatively compact structure is achieved. Furthermore, the ring contact between the heater and the cylindrical solid phase portion results in a more gradual transition of resistance versus programming current, enabling multilevel memories to be formed.Type: GrantFiled: December 1, 2010Date of Patent: May 29, 2012Assignee: STMicroelectronics S.r.l.Inventors: Ilya V. Karpov, Sergey Kostylev, Charles C. Kuo
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Patent number: 8187975Abstract: A raised source-drain structure is formed using a process wherein a semiconductor structure is received in a process chamber that is adapted to support both an etching process and an epitaxial growth process. This semiconductor structure includes a source region and a drain region, wherein the source and drain regions each include a damaged surface layer. The process chamber is controlled to set a desired atmosphere and set a desired temperature. At the desired atmosphere and temperature, the etching process of process chamber is used to remove the damaged surface layers from the source and drain regions and expose an interface surface. Without releasing the desired atmosphere and while maintaining the desired temperature, the epitaxial growth process of the process chamber is used to grow, from the exposed interface surface, a raised region above each of the source and drain regions.Type: GrantFiled: December 6, 2010Date of Patent: May 29, 2012Assignee: STMicroelectronics, Inc.Inventors: Prasanna Khare, Nicolas Loubet, Qing Liu
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Patent number: 8188811Abstract: A filter with coupled resonator having a substrate; an acoustic mirror intended to support acoustic resonators, and to isolate these resonators from the substrate; a first structure with an upper resonator and a lower resonator coupled to one another through at least one layer of acoustic coupling; a second structure with an upper resonator and a lower resonator coupled to one another through at least one layer of acoustic coupling; the lower resonators of the first and second structure having the same electrodes. The first and second structures are connected via a fifth resonator for which electrodes and the piezoelectric layer of the lower resonators are of the first and second structure.Type: GrantFiled: February 13, 2009Date of Patent: May 29, 2012Assignees: STMicroelectronics S.A., Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Andrea Cathelin, Didier Belot, Alexandre Augusto Shirakawa, Eric Kerherve, Jean-Marie Pham, Pierre Jary
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Patent number: 8190909Abstract: A method for controlling the execution of at least one program in an electronic circuit and a processor for executing a program, in which at least one volatile memory area of the circuit is, prior to the execution of the program to be controlled, filled with first instructions resulting in an exception processing; the program contains instructions for replacing all or part of the first instructions with second valid instructions; and the area is called for execution of all or part of the instruction that it contains at the end of the execution of the instruction program.Type: GrantFiled: April 10, 2008Date of Patent: May 29, 2012Assignee: STMicroelectronics S.A.Inventors: Pierre-Yvan Liardet, Yannick Teglia
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Publication number: 20120126230Abstract: A method for manufacturing a semiconductor chip stack device is provided. The method includes forming a first connecting element array on a surface of a first semiconductor chip; forming a second connecting element array on a surface of a second semiconductor chip, the second array comprising more connecting elements than the first array and the pitch of the first array being a multiple of the pitch of the second array; applying the first chip against the second chip; and setting up test signals between the first and second chips to determine the matching between the connecting elements of the first array and the connecting elements of the second array.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: STMicroelectronics SAInventors: Richard Fournel, Pierre Dautriche
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Publication number: 20120127350Abstract: A method may denoise a digital video signal produced by a photoelectric sensor as a matrix of pixel signals affected by both thermal noise and impulsive noise. The method may include estimating the noise level associated to the pixel signals, and filtering the pixel signals with an attenuation factor that is a function of the estimated noise level.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: STMicroelectronics S.r.l.Inventor: Daniele ALFONSO