公开(公告)号：US20200350910A1

公开(公告)日：2020-11-05

申请号：US16643383

申请日：2017-08-29

Applicant: STMicroelectronics SA ,  Université Savoie Mont Blanc

Inventor： Hanae Zegmout ,  Denis Pache ,  Stephane Le Tual ,  Jean-François Roux ,  Jean-Louis Coutaz

IPC: H03K17/78 ,  H01L31/028 ,  H01L31/0352 ,  H01L31/08

Abstract: In accordance with an embodiment of the present invention, an optical switch includes a photoconductor body including a first edge and an opposite second edge, a first end and an opposite second end. The first edge is configured to receive an electrical input signal and the second edge is configured to deliver an electrical output signal. The photoconductor body is configured to have an electrically ON state that is activated by an optical signal and an electrically OFF state that is activated by an absence of the optical signal. A direction from the first end to the second end defines a longitudinal direction. The direction from the first edge to the second edge defines a first direction that is orthogonal to the longitudinal direction. A first dimension between the first edge and the second edge along the first direction decreases from the first end to the second end.

公开(公告)号：US10795396B2

公开(公告)日：2020-10-06

申请号：US16572130

申请日：2019-09-16

Applicant: STMicroelectronics SA

Inventor： Renan Lethiecq ,  Philippe Galy

IPC: G01K7/25 ,  G05F3/24

Abstract: An electronic device includes a module that delivers a positive temperature coefficient output voltage at an output terminal. A thermistor includes a first MOS transistor operating in weak inversion mode and having a negative temperature coefficient drain-source resistance and whose source is coupled to the output terminal. A current source coupled to the output terminal operates to impose the drain-source current of the first transistor.

公开(公告)号：US20200228061A1

公开(公告)日：2020-07-16

申请号：US16739287

申请日：2020-01-10

Applicant: STMicroelectronics SA

Inventor： Lionel VOGT

IPC: H03D1/18 ,  H03D1/06

Abstract: An electronic envelope detection circuit includes an input signal detecting circuit having at least one MOS transistor configured to receive a radiofrequency input signal and to deliver an internal signal on the basis of the input signal. The biasing point of the at least one transistor is controlled by the input signal and a control signal. A processing circuit that is coupled to the input signal detecting circuit is configured to deliver a low-frequency output signal on the basis of the internal signal and further deliver the control signal on the basis of the output signal. In operation, the value of the control signal decreases when the average power of the input signal increases, and vice versa.

公开(公告)号：US20200225986A1

公开(公告)日：2020-07-16

申请号：US16739388

申请日：2020-01-10

Applicant: STMicroelectronics SA ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Bruno DENIS ,  Christophe TABA

IPC: G06F9/48 ,  G06F9/54 ,  G06F12/1081

Abstract: Requests are received by a routing circuit. A plurality of first round-robin arbitration circuits are coupled to the routing circuit. There are as many first round-robin arbitration circuits as there are possible priority levels for the requests. The routing circuit operates to transmit each received request to a number of first round-robin arbitration circuits determined according to the priority level of the request. A second round-robin arbitration circuit has inputs respectively connected to the outputs of the first round-robin arbitration circuits.

公开(公告)号：US10715113B2

公开(公告)日：2020-07-14

申请号：US16259689

申请日：2019-01-28

Applicant: STMicroelectronics SA

Inventor： Bruno Grelaud ,  Sebastien Pruvost

IPC: H03H11/28 ,  H03H11/32 ,  H03H11/24 ,  H01Q1/50 ,  H04B1/18 ,  H04L25/12 ,  H04B3/26 ,  H04B1/04 ,  H04L25/02 ,  H03H7/25 ,  H03H7/40 ,  H03H11/30

Abstract: An attenuator having an impedance that is controllable by a first setpoint signal is coupled to a transmission line. A matching circuit having an impedance that is controllable by a second setpoint signal is also coupled to the transmission line. A transformer circuit block also coupled to the transmission line has a complex impedance. A control circuit sets the first and second setpoint signals so as to control a conjugate impedance relationship between the variable impedances presented by the attenuator and matching circuit relative to the complex impedance of the transformer circuit.

公开(公告)号：US10686475B2

公开(公告)日：2020-06-16

申请号：US16610834

申请日：2017-05-05

Applicant: STMicroelectronics SA ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  UNIVERSITE DE BORDEAUX

Inventor： Vincent Knopik ,  Boris Moret ,  Eric Kerherve

IPC: H04B1/04 ,  G01K13/00

Abstract: A method is provided for controlling the matching of an antenna to a transmission path. The transmission path includes an amplifier stage coupled at an input or at an output to the antenna and to a resistive load. The method includes performing a checking phase by measuring a first current temperature at or in proximity of the antenna and a second current temperature at or in proximity of the resistive load, triggering a matching of the impedance seen at the input or at the output of the amplifier stage in the presence of a first condition involving the first and second current temperatures, and then stopping the matching of the impedance in the presence of a second condition involving the second current temperature.

公开(公告)号：US20200098743A1

公开(公告)日：2020-03-26

申请号：US16696045

申请日：2019-11-26

Applicant: STMicroelectronics SA

Inventor： Jean Jimenez ,  Boris Heitz ,  Johan Bourgeat ,  Agustin Monroy Aguirre

IPC: H01L27/02 ,  H01L29/74 ,  H01L29/87 ,  H01L27/102 ,  H01L27/12

Abstract: A semiconductor device includes a thyristor disposed in a semiconductor body. The thyristor has an anode, a cathode, a first bipolar transistor located on an anode side, and a second bipolar transistor located on a cathode side. The first and second bipolar transistors are nested and connected between the anode and the cathode. A MOS transistor is disposed in the semiconductor body. The MOS transistor is coupled between a collector region and an emitter region of the second bipolar transistor. The MOS transistor has a gate region connected to the cathode via a resistive semiconductor region that incorporates at least a part of a base region of the second bipolar transistor.

公开(公告)号：US20200097752A1

公开(公告)日：2020-03-26

申请号：US16142544

申请日：2018-09-26

Applicant: STMicroelectronics SA ,  STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED

Inventor： Francois De Salivet de Fouchecour ,  Stuart McLeod ,  Donald Baxter ,  Olivier Pothier ,  Thierry Lebihen

IPC: G06K9/46 ,  G06T7/521 ,  G06T7/162

Abstract: An embodiment device includes: a plurality of optical emitters configured to emit incident radiation within a field of view of the device; a plurality of optical detectors configured to receive reflected radiation and to generate a histogram based on the incident radiation and the reflected radiation, the histogram being indicative of a number of photon events detected by the plurality of optical detectors over a plurality of time bins, the plurality of time bins being indicative of a plurality of time differences between emission of the incident radiation and reception of the reflected radiation; and a processor configured to iteratively process the histogram by executing an expectation-maximization algorithm to detect a presence of objects located in the field of view of the device.

公开(公告)号：US20200097036A1

公开(公告)日：2020-03-26

申请号：US16572130

申请日：2019-09-16

Applicant: STMicroelectronics SA

Inventor： Renan LETHIECQ ,  Philippe GALY

IPC: G05F3/24 ,  G01K7/25

Abstract: An electronic device includes a module that delivers a positive temperature coefficient output voltage at an output terminal. A thermistor includes a first MOS transistor operating in weak inversion mode and having a negative temperature coefficient drain-source resistance and whose source is coupled to the output terminal. A current source coupled to the output terminal operates to impose the drain-source current of the first transistor.

公开(公告)号：US10587131B2

公开(公告)日：2020-03-10

申请号：US15968501

申请日：2018-05-01

Applicant: Commissariat à l'Energie Atomique et aux Energies Alternatives ,  STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics SA

Inventor： Séverin Trochut ,  Stéphane Monfray ,  Sébastien Boisseau

IPC: H02J7/00 ,  G01R31/3835 ,  H02J7/35 ,  H02J7/34 ,  H02J1/10 ,  H02J1/06 ,  G01D21/00

Abstract: The invention concerns a measurement unit including: an electric ambient energy recovery generator; an element of capacitive storage of the electric energy generated by the generator; an electric battery; a first branch coupling an output node of the generator to a first electrode of the capacitive storage element; a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold, wherein, in operation, the capacitive storage element simultaneously receives a first charge current originating from the generator via the first branch and a second charge current originating from the battery via the second branch.