Patents by Inventor Mahesh Chowdhary

Mahesh Chowdhary has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180114133
    Abstract: Disclosed herein is a method of operating an electronic device. The method includes activating a first sensing device, and determining a first probabilistic context of the electronic device relative to its surroundings. The method includes outputting the first probabilistic context, and determining a confidence measure of the first probabilistic context. Where the confidence measure of the first probabilistic context is below a threshold, the method includes activating a second sensing device, determining a second probabilistic context of the electronic device relative to its surroundings. outputting the second probabilistic context, and determining a confidence measure of the second probabilistic context. Where the confidence measure of the second probabilistic context is above the threshold, the second sensing device is deactivated and the method returns to determining the first probabilistic context.
    Type: Application
    Filed: October 21, 2016
    Publication date: April 26, 2018
    Applicants: STMicroelectronics, Inc., STMicroelectronics International N.V.
    Inventors: Mahesh Chowdhary, Arun Kumar, Ghanapriya Singh, Kashif R. J. Meer, Indra Narayan Kar, Rajendar Bahl
  • Publication number: 20180096256
    Abstract: An electronic device described herein includes a sensing unit having at least one sensor to acquire sensing data. An associated computing device extracts sensor specific features from the sensing data, and generates a motion activity vector, a voice activity vector, and a spatial environment vector as a function of the sensor specific features. The motion activity vector, voice activity vector, and spatial environment vector are processed to determine a base level context of the electronic device relative to its surroundings, with the base level context having aspects each based on the motion activity vector, voice activity vector, and spatial environment vector. Meta level context of the electronic device relative to its surroundings is determined as a function of the base level context, with the meta level context being at least one inference made from at least two aspects of the plurality of aspects of the base level context.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 5, 2018
    Applicants: STMicroelectronics International N.V., STMicroelectronics, Inc.
    Inventors: Mahesh Chowdhary, Arun Kumar, Ghanapriya Singh, Kashif R. J. Meer, Indra Narayan Kar, Rajendar Bahl
  • Patent number: 9870535
    Abstract: An electronic device described herein includes a sensing unit having at least one sensor to acquire sensing data. An associated computing device extracts sensor specific features from the sensing data, and generates a motion activity vector, a voice activity vector, and a spatial environment vector as a function of the sensor specific features. The motion activity vector, voice activity vector, and spatial environment vector are processed to determine a base level context of the electronic device relative to its surroundings, with the base level context having aspects each based on the motion activity vector, voice activity vector, and spatial environment vector. Meta level context of the electronic device relative to its surroundings is determined as a function of the base level context, with the meta level context being at least one inference made from at least two aspects of the plurality of aspects of the base level context.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 16, 2018
    Assignees: STMicroelectronics, Inc., STMicroelectronics International N.V.
    Inventors: Mahesh Chowdhary, Arun Kumar, Ghanapriya Singh, Kashif R. J. Meer, Indra Narayan Kar, Rajendar Bahl
  • Publication number: 20170176546
    Abstract: A method includes acquiring magnetic data from a magnetometer, processing the magnetic data to perform robust calibration, and generating optimum calibration parameters using a calibration status indicator. To that end, the method includes generating a calibration status indicator as a function of time elapsed since a last calibration and variation in total magnetic field in previously stored magnetic data, detecting anomalies, and extracting a sparse magnetic data set using comparison between the previously stored magnetic data and the magnetic data. Calibration parameters are generated for the magnetometer using a calibration method as a function of the magnetic data set. The calibration parameters are stored based on performing a validation and stability check on the calibration parameters, and weighted with the previously stored calibration parameters to produce weighted calibration parameters.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Applicants: STMicroelectronics International N.V., STMicroelectronics, Inc.
    Inventors: Mahaveer Jain, Mahesh Chowdhary
  • Publication number: 20160255017
    Abstract: Disclosed herein is a sensor chip including at least one sensing device and a control circuit. The control circuit is configured to receive configuration data as input, and acquire data from the at least one sensing device in accordance with the configuration data. The control circuit classifies a context of the at least one sensing device relative to its surroundings based on analysis of the acquired data in accordance with the configuration data.
    Type: Application
    Filed: April 19, 2016
    Publication date: September 1, 2016
    Applicant: STMicroelectronics, Inc.
    Inventors: Mahesh Chowdhary, Sankalp Dayal
  • Publication number: 20160252542
    Abstract: An electronic device includes a printed circuit board (PCB) having at least one conductive trace thereon. A system on chip (SoC) is mounted on the PCB and electrically coupled to the conductive trace. A sensor chip is mounted on the PCB in a spaced apart relation with the SoC and electrically coupled to the conductive trace such that the sensor chip and SoC are electrically coupled. The sensor chip includes an accelerometer and/or a gyroscope, and a control circuit. The control circuit is configured to receive configuration data as input, acquire data from the accelerometer and/or the gyroscope. The control circuit is also configured to process the data so as to generate a context of the electronic device relative to its surroundings, the processing being performed in using a processing technique operating in accordance with the configuration data, and output the context.
    Type: Application
    Filed: June 24, 2015
    Publication date: September 1, 2016
    Applicant: STMicroelectronics, Inc.
    Inventors: Mahesh Chowdhary, Sankalp Dayal
  • Publication number: 20160253594
    Abstract: An electronic device described herein includes a sensing unit having at least one sensor to acquire sensing data. An associated computing device extracts sensor specific features from the sensing data, and generates a motion activity vector, a voice activity vector, and a spatial environment vector as a function of the sensor specific features. The motion activity vector, voice activity vector, and spatial environment vector are processed to determine a base level context of the electronic device relative to its surroundings, with the base level context having aspects each based on the motion activity vector, voice activity vector, and spatial environment vector. Meta level context of the electronic device relative to its surroundings is determined as a function of the base level context, with the meta level context being at least one inference made from at least two aspects of the plurality of aspects of the base level context.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 1, 2016
    Applicants: STMicroelectronics, Inc., STMicroelectronics International N.V.
    Inventors: Mahesh Chowdhary, Arun Kumar, Ghanapriya Singh, Kashif R. J. Meer, Indra Narayan Kar, Rajendar Bahl
  • Patent number: 9163946
    Abstract: A method and apparatus of detecting and using motion modes in a mobile device is described. Movement data is collected from an inertial motion unit (IMU) of the mobile device and compared to two or more sets of training data, each set of training data corresponding to a different motion mode. Then, a motion mode is determined to be the current mode of the mobile device on the results of the comparison. The motion mode is used by the mobile device in a variety of applications.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: October 20, 2015
    Assignee: CSR TECHNOLOGY HOLDINGS INC.
    Inventors: Mahesh Chowdhary, Arun Kumar, Manish Sharma, Kolin Paul, Mahaveer Jain, Gagan Narula
  • Patent number: 8825426
    Abstract: In general, the invention relates to an algorithm and process for automated and/or continuous calibration of magnetic sensor, for example such as a sensor installed in a mobile positioning system handset. According to certain aspects, the calibration process can use the normal motion of the handset such that all measurement data from the three orthogonal axes of sensor when exposed to Earth's magnetic field is collected. According to still further aspects, the process includes fitting measurement data to an ellipsoid that characterizes the actual magnetic field measurements from a magnetic sensor, so that anomalies such as hard iron effect, soft iron effect and scale factors can be extracted and/or corrected by comparison to a sphere represented by magnetic field data from a model at the sensor's location.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: September 2, 2014
    Assignee: CSR Technology Holdings Inc.
    Inventors: Mahesh Chowdhary, Mahaveer Jain
  • Publication number: 20140142885
    Abstract: The present invention relates generally to position determination, and more particularly to methods and apparatuses to determine the walking direction (heading of a user) using MEMS inertial sensors commonly found in mobile devices such as cellphones. According to some aspects, the invention includes a methodology to allow the walking angle to be determined dynamically. In embodiments, the methodology includes pattern matching accelerometer measurement data to a reference acceleration pattern.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: CSR Technology Inc.
    Inventors: Mahesh Chowdhary, Manish Sharma, Arun Kumar, Sankalp Dayal, Mahaveer Jain
  • Patent number: 8566032
    Abstract: Methods and apparatuses for estimating a user's altitude with respect to the mean sea level are provided. According to some aspects, the present invention is able to estimate altitude in both open sky as well as in degraded GPS signal environments such as dense urban canyon environments where GPS performance is affected by fewer available satellites and/or multipath error. According to other aspects, the present invention uses data from a pressure sensor to estimate altitude, either with or without the use of GPS aiding data. According to further aspects, estimated altitude is integrated with other types of dead reckoning data to provide user context detection pertaining to changes of altitude.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 22, 2013
    Assignee: CSR Technology Holdings Inc.
    Inventors: Mahesh Chowdhary, Arun Kumar, Manish Sharma, Ashutosh Pande, Mahaveer Jain, Gagan Narula, Chinmay Agarwal, Kolin Paul
  • Publication number: 20120303271
    Abstract: The present invention is related to detecting location of a navigation device using sensor data analysis, where the sensor is coupled to the navigation device. A hierarchical algorithm is used for making a series of decisions regarding the location of the navigation device, with each decision corresponding to a class among a plurality of classes related to the possible motion modes and/or precise location of the device, including the location of the device with respect to a person's body. By accurately identifying the device location, the hierarchical algorithm facilitates in providing relevant contextual information, thereby enhancing situational awareness.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Applicant: SiRF Technology Holdings, Inc.
    Inventors: Mahesh Chowdhary, Manish Sharma, Arun Kumar, Anuraag Gupta, Prateek Agrawal
  • Publication number: 20110241935
    Abstract: The present invention is related to location positioning systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation solutions. According to a first aspect, cartography information from a map database embedded within the GPS receiver is integrated into the position calculations performed by the GPS receiver. According to another aspect, the map database embedded within the GPS receiver is optimized for the purpose of improving the accuracy of the GPS receiver's position calculations.
    Type: Application
    Filed: March 23, 2009
    Publication date: October 6, 2011
    Inventors: Srdjan Miocinovic, Mahesh Chowdhary
  • Patent number: 7979207
    Abstract: Systems and methods for detecting a vehicle static condition are provided. In this regard, a representative system includes a sensor operative to detect at least one of acceleration and angular rate of a vehicle. The sensor is further operative to generate a vehicle vibration profile based on the at least one of the detected acceleration and angular rate of the vehicle. The system further includes a computing device operative to receive the vehicle vibration profile from the sensor, the computing device being further operative to determine whether the vehicle is stationary or moving based on the vehicle vibration profile.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: July 12, 2011
    Assignee: SIRF Technology, Inc.
    Inventors: Mahesh Chowdhary, Qiyue Zhang, Mangesh Chansarkar, Gengsheng Zhang
  • Publication number: 20110106449
    Abstract: Methods and apparatuses for estimating a user's altitude with respect to the mean sea level are provided. According to some aspects, the present invention is able to estimate altitude in both open sky as well as in degraded GPS signal environments such as dense urban canyon environments where GPS performance is affected by fewer available satellites and/or multipath error. According to other aspects, the present invention uses data from a pressure sensor to estimate altitude, either with or without the use of GPS aiding data. According to further aspects, estimated altitude is integrated with other types of dead reckoning data to provide user context detection pertaining to changes of altitude.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Mahesh Chowdhary, Arun Kumar, Manish Sharma, Ashutosh Pande, Mahaveer Jain, Gagan Narula, Chinmay Agarwal, Kolin Paul
  • Publication number: 20080234933
    Abstract: Systems and methods for detecting a vehicle static condition are provided. In this regard, a representative system includes a sensor operative to detect at least one of acceleration and angular rate of a vehicle. The sensor is further operative to generate a vehicle vibration profile based on the at least one of the detected acceleration and angular rate of the vehicle. The system further includes a computing device operative to receive the vehicle vibration profile from the sensor, the computing device being further operative to determine whether the vehicle is stationary or moving based on the vehicle vibration profile.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 25, 2008
    Applicant: SiRF Technology, Inc.
    Inventors: Mahesh Chowdhary, Qiyue Zhang, Mangesh Chansarkar, Gengsheng Zhang
  • Publication number: 20040236596
    Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Inventors: Mahesh Chowdhary, Gunasekaran Govindarajan
  • Publication number: 20040236474
    Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Inventors: Mahesh Chowdhary, Gunasekaran Govindarajan
  • Publication number: 20040236475
    Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Inventor: Mahesh Chowdhary
  • Publication number: 20040236476
    Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Inventor: Mahesh Chowdhary