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公开(公告)号：US20200348137A1
公开(公告)日：2020-11-05
申请号：US16399842
申请日：2019-04-30
Applicant: STMICROELECTRONICS, INC. , STMICROELECTRONICS S.r.l.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY , Roberto MURA , Nicola Matteo PALELLA , Leonardo COLOMBO
Abstract: A device including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.
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公开(公告)号：US20200026365A1
公开(公告)日：2020-01-23
申请号：US16040331
申请日：2018-07-19
Applicant: STMICROELECTRONICS S.r.l. , STMICROELECTRONICS, INC.
Inventor： Stefano Paolo RIVOLTA , Mahaveer JAIN , Ashish BHARGAVA
IPC: G06F3/0346 , G06F3/0487
Abstract: Digital signal processing circuitry, in operation, determines, based on accelerometer data, a carry-position of a device. Double-tap detection parameters are set using the determined carry-position. Double-taps are detected using the set double-tap detection parameters. In response to detection of a double-tap, control signals, such as a flag or an interrupt signal, are generated and used to control operation of the device. For example, a device may enter a wake mode of operation in response to detection of a double-tap.
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公开(公告)号：US20230358541A1
公开(公告)日：2023-11-09
申请号：US18352969
申请日：2023-07-14
Applicant: STMICROELECTRONICS, INC. , STMICROELECTRONICS S.r.l.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY , Roberto MURA , Nicola Matteo PALELLA , Leonardo COLOMBO
CPC classification number: G01C21/165 , G01C21/20 , G01S19/49
Abstract: A device including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.
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4.发明申请公开(公告)号：US20220080979A1
公开(公告)日：2022-03-17
申请号：US17470962
申请日：2021-09-09
Applicant: STMICROELECTRONICS S.r.l. , STMICROELECTRONICS, INC. , STMicroelectronics (Grand Ouest) SAS
Inventor： Nicola Matteo PALELLA , Leonardo COLOMBO , Andrea DONADEL , Roberto MURA , Mahaveer JAIN , Joëlle PHILIPPE
IPC: B60W40/101 , B60W40/11 , B60W40/112 , B60W40/114 , G01S19/47
Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.
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5.发明公开公开(公告)号：US20240067184A1
公开(公告)日：2024-02-29
申请号：US18496124
申请日：2023-10-27
Applicant: STMICROELECTRONICS S.r.l. , STMICROELECTRONICS, INC. , STMicroelectronics (Grand Ouest) SAS
Inventor： Nicola Matteo PALELLA , Leonardo COLOMBO , Andrea DONADEL , Roberto MURA , Mahaveer JAIN , Joelle PHILIPPE
IPC: B60W40/101 , B60W40/11 , B60W40/112 , B60W40/114 , G01S19/47
CPC classification number: B60W40/101 , B60W40/11 , B60W40/112 , B60W40/114 , G01S19/47 , B60W2520/28
Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.
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Patent Agency Ranking
公开(公告)号：US20240045001A1
公开(公告)日：2024-02-08
申请号：US18488750
申请日：2023-10-17
Applicant: STMICROELECTRONICS, INC.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY
CPC classification number: G01R33/0035 , G01C25/005
Abstract: An electronic device includes a magnetometer that outputs magnetometer sensor signals and a gyroscope that outputs gyroscope sensor signals. The electronic device includes a magnetometer calibration module that calibrates the magnetometer utilizing the gyroscope sensor signals. The electronic device generates a first magnetometer calibration parameter based on a Kalman filter process. The electronic device generates a second magnetometer calibration parameter based on a least squares estimation process.
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公开(公告)号：US20230322170A1
公开(公告)日：2023-10-12
申请号：US17717855
申请日：2022-04-11
Applicant: STMICROELECTRONICS, INC.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY
IPC: B60R16/023 , B60R16/03 , B60W40/10
CPC classification number: B60R16/0232 , B60R16/03 , B60W2520/00 , B60W2400/00 , B60W40/10
Abstract: The present disclosure is directed to a device and method for detection of motion events including towing of the vehicle, jacking of the vehicle, and the vehicle being hit by another object. Processing is split between an MCU and a sensor unit. After the vehicle is turned off and before the MCU enters a sleep mode, the MCU calculates a gravity vector of the vehicle using accelerometer data, calculates threshold values based on the gravity vector, and saves the threshold values. After the MCU enters the sleep mode, the sensor unit subsequently monitors and detects motion events with the saved threshold values.
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公开(公告)号：US20220082387A1
公开(公告)日：2022-03-17
申请号：US17532792
申请日：2021-11-22
Applicant: STMICROELECTRONICS, INC.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY
Abstract: A device including microelectromechanical systems (MEMS) sensors is used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a sensor frame of the device with either the movement direction of the vehicle or the walking direction of a pedestrian using the MEMS sensors, the device can accurately calculate the location of a user of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of a pedestrian and a user riding in a vehicle without utilizing GPS/GNSS signals can be provided.
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公开(公告)号：US20220206085A1
公开(公告)日：2022-06-30
申请号：US17135628
申请日：2020-12-28
Applicant: STMicroelectronics, Inc.
Inventor： Mahaveer JAIN , Mahesh CHOWDHARY
Abstract: An electronic device includes a magnetometer that outputs magnetometer sensor signals and a gyroscope that outputs gyroscope sensor signals. The electronic device includes a magnetometer calibration module that calibrates the magnetometer utilizing the gyroscope sensor signals. The electronic device generates a first magnetometer calibration parameter based on a Kalman filter process. The electronic device generates a second magnetometer calibration parameter based on a least squares estimation process.
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10.发明申请公开(公告)号：US20210201191A1
公开(公告)日：2021-07-01
申请号：US16728822
申请日：2019-12-27
Applicant: STMicroelectronics, Inc.
Inventor： Mahesh CHOWDHARY , Mahaveer JAIN
Abstract: A sensor management system includes a cloud-based sensor configuration system and an electronic device. The electronic device includes a sensor unit. The sensor unit includes configuration data that controls operation of the sensor unit. The configuration data includes a classifier that classifies feature sets generated from sensor signals of the sensor unit. The electronic device sends sensor data to the cloud-based sensor configuration system. The cloud-based sensor configuration system analyzes the sensor data and generates a new classifier customized for the sensor unit based on the sensor data. The cloud-based sensor configuration system sends the new classifier to the electronic device. The electronic device replaces the classifier in the sensor unit with the new classifier.
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