公开(公告)号：US20210193221A1

公开(公告)日：2021-06-24

申请号：US17129016

申请日：2020-12-21

Applicant: StMicroelectronics International N.V.

Inventor： Maurizio Francesco Perroni ,  Fabio Enrico Carlo Disegni ,  Massimo Caruso ,  Cesare Torti

IPC: G11C13/00

Abstract: An embodiment non-volatile memory device includes an array of memory cells arranged in rows and columns; a plurality of local bitlines; and a plurality of main bitlines, each main bitline being coupleable to a corresponding subset of local bitlines. The memory cells of each column are coupled to a corresponding local bitline. The memory device further includes a column decoder, which can be controlled electronically so as to couple each main bitline to a selected local bitline of the corresponding subset of local bitlines. The column decoder couples each main bitline to two different points of the corresponding selected local bitline.

公开(公告)号：US20210151071A1

公开(公告)日：2021-05-20

申请号：US17158817

申请日：2021-01-26

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

Inventor： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC: G10L25/51 ,  G10L25/21 ,  G10L25/24 ,  H04R1/40 ,  H04R3/00

Abstract: A method and apparatus for classifying a spatial environment as open or enclosed are provided. In the method and apparatus, one or more microphones detect ambient sound in a spatial environment and output an audio signal representative of the ambient sound. A processor determines a spatial environment impulse response (SEIR) for the audio signal and extracts one or more features of the SEIR. The processor classifies the spatial environment as open or enclosed based on the one or more features of the SEIR.

公开(公告)号：US10999050B1

公开(公告)日：2021-05-04

申请号：US16865914

申请日：2020-05-04

Applicant: STMicroelectronics International N.V.

Inventor： Samiksha Agarwal

IPC: H04L7/00

Abstract: A data synchronization unit including first flip-flops, operating on a first clock domain and a reset of a second clock domain, sampling data from the first clock domain; a second flip-flop, operating in the first clock domain, sampling a request signal when enabled by a request pulse; a request signal path configured to delay the request signal by a first delay and to generate an enable signal for recirculation multiplexers in accordance with the delayed request signal; a reset signal synchronization path configured to delay the reset signal of the first clock domain by a second delay, wherein the second delay is shorter than the first delay; and multiplexers having first inputs for receiving outputs of the recirculation multiplexers, a second input for receiving a reset value of a programmable register, the multiplexers being configured to selectively output signals at inputs to outputs.

公开(公告)号：US10979805B2

公开(公告)日：2021-04-13

申请号：US16235947

申请日：2018-12-28

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

Inventor： Mahesh Chowdhary ,  Prasanth Logaraman ,  Arun Kumar ,  Rajendar Bahl

IPC: G10L21/0208 ,  H04R3/00 ,  H04R1/40 ,  H04R3/04 ,  G10L25/78 ,  G10L21/0216 ,  B81B7/00 ,  G01S3/80

Abstract: A method and apparatus for auto-directive adaptive beamforming for a microphone array using microelectromechanical systems (MEMS) sensor orientation information are provided. The microphone array captures audio and the MEMS sensor detects an orientation of the microphone array. A direction of arrival of a source signal is estimated based on the data representative of the audio. A change in an orientation of the microphone array is detected based on the orientation and the direction of arrival is compensates based on the change in the orientation of the microphone array. The apparatus pre-steers a beam of a beam pattern of the microphone array based on the compensated direction of arrival to retain the source signal in a broadside of the microphone array and performs adaptive wideband beamforming to null one or more interfering sources in the beam pattern while retaining the source signal in the broadside of the microphone array.

公开(公告)号：US10976337B2

公开(公告)日：2021-04-13

申请号：US16257694

申请日：2019-01-25

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC: G01P15/00 ,  G06F1/16 ,  G01P15/18 ,  H04W4/029 ,  G06N20/10 ,  G10L21/10 ,  G06K9/62 ,  H04W4/50 ,  G06F3/0346 ,  G10L25/51 ,  G06F3/01 ,  H04M1/725 ,  G10L25/78 ,  H04W4/38 ,  H04L29/08

Abstract: A distributed computing system for artificial intelligence in autonomously appreciating a circumstance context of a smart device. Raw context data is detected by sensors associated with the smart device. The raw context data is pre-processed by the smart device and then provided to a cloud based server for further processing. At the cloud based server, various sets of feature data are obtained from the pre-processed context data. The various sets of feature data are compared with corresponding classification parameters to determine a classification of a continuous event and/or a classification of transient event, if any, which occur in the context. The determined classification of the continuous event and the transient event will be used to autonomously configure the smart device or another related smart device to fit the context.

公开(公告)号：US20210089651A1

公开(公告)日：2021-03-25

申请号：US16579415

申请日：2019-09-23

Applicant: STMicroelectronics International N.V.

Inventor： Deepak BARANWAL ,  Nirav Prashantkumar TRIVEDI ,  Sandip ATAL

IPC: G06F21/55 ,  G06F21/75 ,  G06F9/455 ,  G06F13/16

Abstract: An embedded system includes a peripheral and system-on-a-chip executing virtual machines and a hypervisor. The peripheral includes a crossbar circuit receiving digital sensor signals and selectively outputting the digital sensor signals to different outputs, queue circuits each receiving a different one of the digital sensor signals from the crossbar circuit, and queue protection circuits associated with the queue circuits and selectively permitting access to one of the queue circuits by the virtual machines. The hypervisor controls the queue protection circuits to set which of the virtual machines may access which queue circuits. A sensor protection circuit selectively permits reading of the digital sensor signals from the crossbar circuit by the queue circuits. The hypervisor controls the sensor protection circuit to set which of the queue circuits may access each of the digital sensor signals from the crossbar circuit.

公开(公告)号：US20210081773A1

公开(公告)日：2021-03-18

申请号：US17023144

申请日：2020-09-16

Applicant: STMICROELECTRONICS S.r.l. ,  STMicroelectronics International N.V.

Inventor： Nitin CHAWLA ,  Giuseppe DESOLI ,  Manuj AYODHYAWASI ,  Thomas BOESCH ,  Surinder Pal SINGH

IPC: G06N3/063 ,  G06F1/08 ,  G06F1/324 ,  G06F9/50 ,  G06N3/08 ,  G06F1/3228 ,  G06F1/3296

Abstract: Systems and devices are provided to increase computational and/or power efficiency for one or more neural networks via a computationally driven closed-loop dynamic clock control. A clock frequency control word is generated based on information indicative of a current frame execution rate of a processing task of the neural network and a reference clock signal. A clock generator generates the clock signal of neural network based on the clock frequency control word. A reference frequency may be used to generate the clock frequency control word, and the reference frequency may be based on information indicative of a sparsity of data of a training frame.

公开(公告)号：US10944978B2

公开(公告)日：2021-03-09

申请号：US16251798

申请日：2019-01-18

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Sumit Johar ,  Surinder Pal Singh

IPC: H04N19/00 ,  H04N19/433

Abstract: Video encoders and decoders and video encoding and decoding methods are provided. A video encoder includes an input buffer configured to receive a video data stream and to supply current frame data, a frame buffer configured to store reconstructed frame data, and an encoder circuit configured to read reference frame data from the frame buffer, to encode the current frame data received from the input buffer using the reference frame data and to write the reconstructed frame data to the frame buffer. The encoder circuit may be configured to write the reconstructed frame data by overwriting the reference frame data in the frame buffer.

公开(公告)号：US10943602B2

公开(公告)日：2021-03-09

申请号：US16696948

申请日：2019-11-26

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

Inventor： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC: H04R3/00 ,  G10L25/51 ,  G10L25/21 ,  G10L25/24 ,  H04R1/40

Abstract: A method and apparatus for classifying a spatial environment as open or enclosed are provided. In the method and apparatus, one or more microphones detect ambient sound in a spatial environment and output an audio signal representative of the ambient sound. A processor determines a spatial environment impulse response (SEIR) for the audio signal and extracts one or more features of the SEIR. The processor classifies the spatial environment as open or enclosed based on the one or more features of the SEIR.

公开(公告)号：US20210067144A1

公开(公告)日：2021-03-04

申请号：US17005091

申请日：2020-08-27

Applicant: STMicroelectronics International N.V.

Inventor： Manish GARG ,  Ankit AGRAWAL

IPC: H03K3/0233 ,  H03K3/037

Abstract: A delay independent differential hysteresis receiver. The differential hysteresis receiver uses two parallel paths in a first receiver stage, each path having a comparator with a dedicated offset on the complimentary inputs. A second receiver stage includes a hold circuit that brings the two parallel paths of the first receiver stage together to form a receiver hysteresis output.