公开(公告)号：US10254623B2

公开(公告)日：2019-04-09

申请号：US15679691

申请日：2017-08-17

Applicant: STMicroelectronics SA

Inventor： Valerie Danelon ,  Denis Pache ,  Christophe Arricastres

IPC: G02F1/225 ,  G02B6/293 ,  G02F1/025 ,  G02F1/21

Abstract: A Mach-Zehnder ring modulator includes a first optical path having a first diode and a optical path having a second diode. Each of the first and second diodes operates responsive to a voltage signal by modifying a phase of a light signal. A first optical coupler provides first and second light signals to the first and second optical paths, respectively. A second optical coupler couples outputs from the first and second optical paths. A feedback path is coupled between an output of the second optical coupler and an input of the first optical coupler.

公开(公告)号：US10234703B2

公开(公告)日：2019-03-19

申请号：US15468831

申请日：2017-03-24

Applicant: STMicroelectronics SA

Inventor： Jean-Robert Manouvrier

IPC: G02F1/01 ,  G01J9/00 ,  G01J9/02 ,  G02F1/025 ,  H04B10/50 ,  G02F1/21 ,  G02F1/225

Abstract: An optical modulator uses an optoelectronic phase comparator configured to provide, in the form of an electrical signal, a measure of a phase difference between two optical waves. The phase comparator includes an optical directional coupler having two coupled channels respectively defining two optical inputs for receiving the two optical waves to be compared. Two photodiodes are configured to respectively receive the optical output powers of the two channels of the directional coupler. An electrical circuit is configured to supply, as a measure of the optical phase shift, an electrical signal proportional to the difference between the electrical signals produced by the two photodiodes.

公开(公告)号：US10181654B2

公开(公告)日：2019-01-15

申请号：US14869811

申请日：2015-09-29

Applicant: STMICROELECTRONICS SA

Inventor： Jean-Francois Carpentier ,  Sébastien Pruvost ,  Patrice Garcia ,  Pierre Busson ,  Pierre Dautriche

IPC: H01Q21/00 ,  H01Q23/00 ,  H01L23/498 ,  H01L23/66 ,  H01L23/00 ,  H01Q19/00 ,  H01Q19/10 ,  H01Q19/185 ,  H01L23/31 ,  H01L23/552

Abstract: A millimeter wave transceiver including a plate forming an interposer having its upper surface supporting an interconnection network and having its lower surface intended to be assembled on a printed circuit board by bumps; an integrated circuit chip assembled on the upper surface of the interposer; antennas made of tracks formed on the upper surface of the interposer; and reflectors on the upper surface of the printed circuit board in front of each of the antennas, the effective distance between each antenna and the reflector plate being on the order of one quarter of the wavelength, taking into account the dielectric constants of the interposed materials.

公开(公告)号：US10153754B2

公开(公告)日：2018-12-11

申请号：US15460520

申请日：2017-03-16

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics SA

Inventor： Alok Kumar Tripathi ,  Amit Verma ,  Pascal Urard

IPC: H03K3/012 ,  H03K3/356 ,  H03K19/00 ,  H03K3/3562

Abstract: A synchronous retention flip-flop circuit includes a first circuit module powered by an interruptible power source and a second circuit module powered by a permanent power source. The first circuit module includes a first latch circuit and a second latch circuit which are configured to store at least one datum while the interruptible power source is supplying power. A transmission circuit operates to deliver the at least one datum to the second circuit module before an interruption of the interruptible power source. The second circuit module preserves the at least one datum during the interruption. Following an end of the interruption, a restoring circuit transfers the at least one datum from the second circuit module to the first circuit module via a single one of the first and second latch circuits.

公开(公告)号：US10153036B2

公开(公告)日：2018-12-11

申请号：US15461979

申请日：2017-03-17

Applicant: STMicroelectronics SA

Inventor： Faress Tissafi Drissi

IPC: G11C11/34 ,  G11C11/419

Abstract: An autocorrective writing to a multiport static random access memory device is performed on at least one multiport static random access memory cell circuit. A first datum is written to the multiport static random access memory cell circuit and a second datum stored in the circuit is read from the multiport static random access memory cell subsequent to writing. The first and second data are compared. In response to the results of that comparison, an operation to rewriting the first datum to the circuit along with application of a write assist mechanism is selectively performed.

公开(公告)号：US10139563B2

公开(公告)日：2018-11-27

申请号：US14984563

申请日：2015-12-30

Applicant: STMICROELECTRONICS SA ,  STMICROELECTRONICS (CROLLES 2) SAS

Inventor： Charles Baudot ,  Alain Chantre ,  Sébastien Cremer

IPC: G02B6/34 ,  G02B6/122 ,  G02B6/136 ,  G02B6/132 ,  G02B6/42 ,  G02B6/12

Abstract: A method is for making a photonic chip including EO devices having multiple thicknesses. The method may include forming a first semiconductor layer over a semiconductor film, forming a second semiconductor layer over the first semiconductor layer, and forming a mask layer over the second semiconductor layer. The method may include performing a first selective etching of the mask layer to provide initial alignment trenches, performing a second etching, aligned with some of the initial alignment trenches and using the first semiconductor layer as an etch stop, to provide multi-level trenches, and filling the multi-level trenches to make the EO devices having multiple thicknesses.

公开(公告)号：US10126499B2

公开(公告)日：2018-11-13

申请号：US14754994

申请日：2015-06-30

Applicant: STMICROELECTRONICS SA ,  STMICROELECTRONICS (CROLLES 2) SAS

Inventor： Jean-Robert Manouvrier ,  Jean-Francois Carpentier ,  Patrick Lemaitre

IPC: G02B6/34 ,  G02B6/124 ,  G02B6/30 ,  G02B6/293

Abstract: An electro-optic device may include a photonic chip having an optical grating coupler at a surface. The optical grating coupler may include a first semiconductor layer having a first base and first fingers extending outwardly from the first base. The optical grating coupler may include a second semiconductor layer having a second base and second fingers extending outwardly from the second base and being interdigitated with the first fingers to define semiconductor junction areas, with the first and second fingers having a non-uniform width. The electro-optic device may include a circuit coupled to the optical grating coupler and configured to bias the semiconductor junction areas and change one or more optical characteristics of the optical grating coupler.

公开(公告)号：US10072923B2

公开(公告)日：2018-09-11

申请号：US14661907

申请日：2015-03-18

Applicant: STMicroelectronics SA

Inventor： Stéphane Valente

IPC: G01C9/00 ,  G01B11/14 ,  G01S17/08 ,  G06N7/00 ,  G06F3/042 ,  G06F3/01 ,  G06F3/03

CPC classification number: G01B11/14 ,  G01S17/08 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/042 ,  G06N7/005

Abstract: The method for processing signals originating for example from several proximity sensors for the recognition of a movement of an object, comprises first respective samplings of the said signals delivered by the sensors so as to obtain a first set of first date-stamped samples, the generation, from the first set of first date-stamped samples, of new sampling times comprising a start of movement time, an end of movement time, and times regularly spaced between the start of movement time and the end of movement time, a re-sampling of the signal delivered by each sensor between the start of movement time and the end of movement time at the said new sampling times using the first samples, in such a manner as to generate a second set of second date-stamped samples, and a processing of the said second set of date-stamped samples by a movement recognition algorithm.

公开(公告)号：US20180142923A1

公开(公告)日：2018-05-24

申请号：US15801505

申请日：2017-11-02

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics SA

Inventor： Rafael Augusto Prieto Herrera ,  Jean-Philippe Colonna ,  Perceval Coudrain

IPC: F25B15/00 ,  F28F3/00 ,  H05K7/20

Abstract: A heat-transferring device is formed by a stack that includes at least one heat-conducting layer and at least one heat-absorbing layer. The at least one heat-conducting layer has at least one heat-collecting section placed facing a heat source and at least one heat-evacuating section placed facing a heat sink. The at least one heat-absorbing layer includes a phase-change material. One face of the at least one heat-absorbing layer is adjoined to at least one portion of at least one face of the heat-conducting layer.

公开(公告)号：US20180139359A1

公开(公告)日：2018-05-17

申请号：US15591597

申请日：2017-05-10

Applicant: STMicroelectronics SA

Inventor： Estelle Lesellier

IPC: H04N1/60 ,  G06T5/00 ,  G06T5/40 ,  H04N1/62 ,  G06T7/90 ,  G06T7/11 ,  G06T7/136

CPC classification number: H04N1/6027 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10024 ,  H04N1/6005 ,  H04N1/6072 ,  H04N1/628

Abstract: An image formed from pixels each having components defining a color is processed to implement an increase in the saturation of the image depending on a gain applied by a transfer function depending on the components of the color of each pixel. The gain of the transfer function is parameterized using at least one control parameter respectively dedicated to at least one type of reference image content. The value of the at least one control parameter is calculated depending on the actual content of the image by implementing calculations including determining colorimetric statistics of the pixels of the image and processing the statistics in accordance with at least one processing model respectively associated with the at least one type of reference image content.