Patents by Inventor Goutam Dutta
Goutam Dutta 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).
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Publication number: 20240035851Abstract: A system for pedestrian use includes an accelerometer having multiple electronic sensors; an electronic circuit operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer, and to electronically correlate a sliding window of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check to compare different step periods for similarity, and if sufficiently similar then to update a portion of the circuit substantially representing a walking-step count; and an electronic display responsive to the electronic circuit to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: ApplicationFiled: October 3, 2023Publication date: February 1, 2024Inventors: Jayawardan JANARDHANAN, Sandeep RAO, Goutam DUTTA
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Patent number: 11808605Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: GrantFiled: February 18, 2022Date of Patent: November 7, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jayawardan Janardhanan, Sandeep Rao, Goutam Dutta
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Patent number: 11517209Abstract: Pressure sensing guidewire assemblies are described herein where the guidewire assembly may be comprised of an elongate guidewire body and multiple pressure sensors secured near or at a distal end of the guidewire body. The signals obtained from the guidewire connectors and aortic sensor modules may be synchronized to minimize signal acquisition delays. The signals may be further processed to equalize the pressure waveforms by shifting the connector waveform to align correctly with the aortic module waveform and improve output signals.Type: GrantFiled: January 9, 2019Date of Patent: December 6, 2022Assignee: PATHWAYS MEDICAL CORPORATIONInventors: Goutam Dutta, Nitin Patil
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Publication number: 20220369947Abstract: Accurately measuring bio-impedance is important for sensing properties of the body. Unfortunately, contact impedances can significantly degrade the accuracy of bio-impedance measurements. To address this issue, a method is provided for estimating an impedance matrix of parasitic network disposed between a first network and a second network of a bio-impedance measurement system, the method comprising determining an impedance matrix for the first network (ZMUX) based on an impedance matrix for the second network (ZLOAD) for at least one known load condition; fitting ZMUX values for ZLOAD for the at least one known load condition to estimate parameters of the impedance matrix of the intervening network.Type: ApplicationFiled: May 19, 2022Publication date: November 24, 2022Applicant: Analog Devices International Unlimited CompanyInventors: Goutam DUTTA, Sriram GANESAN, Venugopal GOPINATHAN
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Publication number: 20220178720Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: ApplicationFiled: February 18, 2022Publication date: June 9, 2022Inventors: Jayawardan JANARDHANAN, Sandeep RAO, Goutam DUTTA
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Patent number: 11255695Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: GrantFiled: June 25, 2019Date of Patent: February 22, 2022Assignee: Texas Instruments IncorporatedInventors: Jayawardan Janardhanan, Sandeep Rao, Goutam Dutta
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Publication number: 20190310104Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: Jayawardan JANARDHANAN, Sandeep RAO, Goutam DUTTA
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Patent number: 10330491Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.Type: GrantFiled: November 22, 2011Date of Patent: June 25, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jayawardan Janardhanan, Sandeep Rao, Goutam Dutta
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Publication number: 20190183355Abstract: Pressure sensing guidewire assemblies are described herein where the guidewire assembly may be comprised of an elongate guidewire body and multiple pressure sensors secured near or at a distal end of the guidewire body. The signals obtained from the guidewire connectors and aortic sensor modules may be synchronized to minimize signal acquisition delays. The signals may be further processed to equalize the pressure waveforms by shifting the connector waveform to align correctly with the aortic module waveform and improve output signals.Type: ApplicationFiled: January 9, 2019Publication date: June 20, 2019Applicant: Cygnus Investment Corporation, C/O Solaris Corporate Services Ltd.Inventors: Goutam DUTTA, Nitin PATIL
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Publication number: 20170332945Abstract: Methods and systems for determining information about a vascular bodily lumen are described. An exemplary method includes generating an electrical signal, delivering the electrical signal to a plurality of excitation elements in the vicinity of the vascular bodily lumen, measuring a responsive electrical signal from a plurality of sensing elements in response to the delivered electrical signal, and determining a lumen dimension. Specific embodiments include generating a multiple frequency electrical signal. Another embodiment includes measuring a plurality of responsive signals at a plurality of frequencies. Still other embodiments include using spatial diversity of the excitation elements. Yet other embodiments use method for calibration and de-embedding of such measurements to determine the lumen dimensions. Diagnostic devices incorporating the method are also disclosed, including guide wires, catheters and implants.Type: ApplicationFiled: June 6, 2017Publication date: November 23, 2017Applicant: Angiometrix CorporationInventors: Venugopal GOPINATHAN, Raghavan SUBRAMANIYAN, Goutam DUTTA, Nitin PATIL, Abhijit PATKI
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Patent number: 9675276Abstract: Methods and systems for determining information about a vascular bodily lumen are described. An exemplary method includes generating an electrical signal, delivering the electrical signal to a plurality of excitation elements in the vicinity of the vascular bodily lumen, measuring a responsive electrical signal from a plurality of sensing elements in response to the delivered electrical signal, and determining a lumen dimension. Specific embodiments include generating a multiple frequency electrical signal. Another embodiment includes measuring a plurality of responsive signals at a plurality of frequencies. Still other embodiments include using spatial diversity of the excitation elements. Yet other embodiments use method for calibration and de-embedding of such measurements to determine the lumen dimensions. Diagnostic devices incorporating the method are also disclosed, including guide wires, catheters and implants.Type: GrantFiled: August 1, 2014Date of Patent: June 13, 2017Assignee: Angiometrix CorporationInventors: Venugopal Gopinathan, Raghavan Subramaniyan, Goutam Dutta, Nitin Patil, Abhijit Patki
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Publication number: 20160290807Abstract: A user-heading determining system (10) for pedestrian use includes a multiple-axis accelerometer (110) having acceleration sensors; a device-heading sensor circuit (115) physically situated in a fixed relationship to the accelerometer (110); an electronic circuit (100) operable to generate signals representing components of acceleration sensed by the accelerometer (110) sensors, and to electronically process at least some part of the signals to produce an estimation of attitude of a user motion with respect to the accelerometer, and further to combine the attitude estimation (750, ?) with a device heading estimation (770, ?) responsive to the device-heading sensor circuit, to produce a user heading estimation (780); and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the user heading estimation. Other systems, circuits and processes are also disclosed.Type: ApplicationFiled: May 10, 2016Publication date: October 6, 2016Inventors: Jayawardan Janardhanan, Goutam Dutta, Varun Tripuraneni
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Publication number: 20160196666Abstract: Systems for detecting and tracking of objects and co-registration are described which utilizes methods to create a linearized view of a lumen using multiple imaged frames. In reality a lumen has a trajectory in 3-D, but only a 2-D projected view is available for viewing. The linearized view unravels this 3-D trajectory thus creating a linearized map for every point on the lumen trajectory as seen on the 2-D display. In one mode of the invention, the trajectory is represented as a linearized display along 1 dimension. This linearized view is also combined with lumen measurement data and the result is displayed concurrently on a single image. In another mode of the invention, the position of a treatment device is displayed on the linearized map in real time. In a further extension of this mode, the profile of the lumen dimension is also displayed on this linearized map.Type: ApplicationFiled: August 11, 2015Publication date: July 7, 2016Applicant: ANGIOMETRIX CORPORATIONInventors: Vikram VENKATRAGHAVAN, Raghavan SUBRAMANIYAN, Goutam DUTTA
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Patent number: 9383209Abstract: According to an aspect of the present disclosure, the relative attitude between an inertial measurement unit (IMU), present on a mobile device, and the frame of reference of the vehicle carrying mobile device is estimated. The estimated relative attitude is used to translate the IMU measurement to the vehicle frame of reference to determine the velocity and position of the vehicle. As a result, the vehicle position and velocity are determined accurately in the event of undocking and re-docking of the mobile device from a docking system in the vehicle. The relative attitude is estimated in terms of pitch, roll, and yaw angles.Type: GrantFiled: September 23, 2013Date of Patent: July 5, 2016Assignee: Texas Instruments IncorporatedInventors: Sachin Bhardwaj, Sriram Murali, Jaiganesh Balakrishnan, Jayawardan Janardhanan, Yogesh Shekar, Goutam Dutta
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Patent number: 9360324Abstract: A user-heading determining system (10) for pedestrian use includes a multiple-axis accelerometer (110) having acceleration sensors; a device-heading sensor circuit (115) physically situated in a fixed relationship to the accelerometer (110); an electronic circuit (100) operable to generate signals representing components of acceleration sensed by the accelerometer (110) sensors, and to electronically process at least some part of the signals to produce an estimation of attitude of a user motion with respect to the accelerometer, and further to combine the attitude estimation (750, ?) with a device heading estimation (770, ?) responsive to the device-heading sensor circuit, to produce a user heading estimation (780); and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the user heading estimation. Other systems, circuits and processes are also disclosed.Type: GrantFiled: July 21, 2015Date of Patent: June 7, 2016Assignee: Texas Instruments IncorporatedInventors: Jayawardan Janardhanan, Goutam Dutta, Varun Tripuraneni
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Patent number: 9360560Abstract: Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.Type: GrantFiled: April 14, 2015Date of Patent: June 7, 2016Assignee: Texas Instruments IncorporatedInventors: Goutam Dutta, Tarkesh Pande, Sandeep Rao, Deric W. Waters
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Publication number: 20160138923Abstract: A user-heading determining system (10) for pedestrian use includes a multiple-axis accelerometer (110) having acceleration sensors; a device-heading sensor circuit (115) physically situated in a fixed relationship to the accelerometer (110); an electronic circuit (100) operable to generate signals representing components of acceleration sensed by the accelerometer (110) sensors, and to electronically process at least some part of the signals to produce an estimation of attitude of a user motion with respect to the accelerometer, and further to combine the attitude estimation (750, ?) with a device heading estimation (770, ?) responsive to the device-heading sensor circuit, to produce a user heading estimation (780); and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the user heading estimation. Other systems, circuits and processes are also disclosed.Type: ApplicationFiled: July 21, 2015Publication date: May 19, 2016Inventors: Jayawardan Janardhanan, Goutam Dutta, Varun Tripuraneni
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Publication number: 20150247739Abstract: An electronic circuit includes an electronic compass having e-compass sensors mounted on different axes and operable to supply e-compass sensor data, memory circuitry, and an electronic processor coupled to said e-compass sensors and to said memory circuitry, said electronic processor operable to execute an electronic ellipse-fitting procedure responsive to the e-compass sensor data to generate at least one signal related to an ellipse tilt angle (?), and store the at least one signal in said memory circuitry as a tilt calibration parameter for the e-compass. Processes for calibrating an e-compass, as well as electronic circuits and processes for correcting measured heading, and processes of manufacture are also disclosed.Type: ApplicationFiled: May 14, 2015Publication date: September 3, 2015Inventor: Goutam Dutta
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Patent number: 9121714Abstract: A user-heading determining system (10) for pedestrian use includes a multiple-axis accelerometer (110) having acceleration sensors; a device-heading sensor circuit (115) physically situated in a fixed relationship to the accelerometer (110); an electronic circuit (100) operable to generate signals representing components of acceleration sensed by the accelerometer (110) sensors, and to electronically process at least some part of the signals to produce an estimation of attitude of a user motion with respect to the accelerometer, and further to combine the attitude estimation (750, ?) with a device heading estimation (770, ?) responsive to the device-heading sensor circuit, to produce a user heading estimation (780); and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the user heading estimation. Other systems, circuits and processes are also disclosed.Type: GrantFiled: February 14, 2014Date of Patent: September 1, 2015Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jayawardan Janardhanan, Goutam Dutta, Varun Tripuraneni
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Publication number: 20150219768Abstract: Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.Type: ApplicationFiled: April 14, 2015Publication date: August 6, 2015Inventors: Goutam Dutta, Tarkesh Pande, Sandeep Rao, Deric W. Waters