Patents by Inventor Venugopal Gopinathan

Venugopal Gopinathan 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).

  • Patent number: 10819396
    Abstract: In described examples, a first die includes a primary LC tank oscillator having a natural frequency of oscillation to induce a forced oscillation in a secondary LC tank oscillator of a separate second die via a magnetic coupling between the primary LC tank oscillator and the secondary LC tank oscillator.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 27, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Publication number: 20200260118
    Abstract: There is disclosed herein examples of systems and methods for compressing a signal. Samples of the signal can be segmented and the samples within each of the segments can be averaged to produce a value that can represent the samples within the segment. The number of samples to average in each segment may be determined based on an error threshold, such that the number of samples being averaged can be maximized to produce less data to be transmitted while maintaining the representation of the samples within the error threshold. In some embodiments, a signal can be separated into a timing reference, a representative periodic function, and a highly compressible error signal. The error signal can be utilized for reproducing a representation of the signal.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Applicant: Analog Devices, Inc.
    Inventors: Patrick RIEHL, Tony J. AKL, Venugopal GOPINATHAN, Hyung Sung YOON
  • Publication number: 20200161184
    Abstract: An example integrated circuit die includes: lower level conductor layers, lower level insulator layers between the lower level conductor layers, lower level vias extending vertically through the lower level insulator layers, upper level conductor layers overlying the lower level conductor layers, upper level insulator layers between and surrounding the upper level conductor layers, upper level vias; at least two scribe seals arranged to form a vertical barrier extending vertically from the semiconductor substrate to a passivation layer at an upper surface of the integrated circuit die; and at least one opening extending vertically through one of the at least two scribe seals and extending through: the upper level conductor layers, the upper level via layers, the lower level conductor layers, and the lower level via layers.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Inventors: Subhashish Mukherjee, Raja Selvaraj, Venugopal Gopinathan
  • Publication number: 20200162130
    Abstract: In described examples, a first die includes a primary LC tank oscillator having a natural frequency of oscillation to induce a forced oscillation in a secondary LC tank oscillator of a separate second die via a magnetic coupling between the primary LC tank oscillator and the secondary LC tank oscillator.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Publication number: 20200054238
    Abstract: Devices, systems, and methods for non-invasively detecting and monitoring medical conditions using multiple modalities of sensing include at least two electrodes configured to be positioned on a subject, an acoustic sensor configured to be positioned on a subject, a thoracic impedance measurement module connected to the electrodes, for measuring a first impedance between the electrodes, and a heart acoustic measurement module connected to the acoustic sensor, for detecting and measuring a heart sound from the acoustic sensor.
    Type: Application
    Filed: January 24, 2018
    Publication date: February 20, 2020
    Applicant: Analog Devices, Inc.
    Inventors: Venugopal GOPINATHAN, James DOSCHER, Tony J. AKL
  • Patent number: 10547352
    Abstract: In described examples, a first die includes a primary LC tank oscillator having a natural frequency of oscillation to induce a forced oscillation in a secondary LC tank oscillator of a separate second die via a magnetic coupling between the primary LC tank oscillator and the secondary LC tank oscillator.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: January 28, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Patent number: 10546780
    Abstract: An example integrated circuit die includes: a plurality of lower level conductor layers, a plurality of lower level insulator layers between the plurality of lower level conductor layers, a plurality of lower level vias extending vertically through the lower level insulator layers, a plurality of upper level conductor layers overlying the lower level conductor layers, a plurality of upper level insulator layers between and surrounding the upper level conductor layers, a plurality of upper level vias; at least two scribe seals arranged to form a vertical barrier extending vertically from the semiconductor substrate to a passivation layer at an upper surface of the integrated circuit die; and at least one opening extending vertically through one of the at least two scribe seals and extending through: the upper level conductor layers, the upper level via layers, the lower level conductor layers, and the lower level via layers.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: January 28, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Subhashish Mukherjee, Raja Selvaraj, Venugopal Gopinathan
  • Publication number: 20180160961
    Abstract: The invention provides a urine sensing device and methods therefor to estimate the volume of urine in a bladder in a non-invasive, real time manner. The urine sensing device comprises plurality of drive electrodes and sensors configured to be positioned in contact with or proximal to skin of the abdomen region of a human such that the relative positions of the drive electrodes and the sensors are known. The plurality of drive electrodes are capable of exciting the abdomen region with an electrical current comprising a plurality of frequencies. The plurality of sensors are capable of measuring at least one electrical parameter from each of the plurality of drive electrodes and the plurality of sensors. Based on the measured values of the at least one electrical parameter, the volume of urine in the bladder is estimated, while taking the electrical conductivity from the bladder tissue, skin, and other extraneous factors into account.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 14, 2018
    Inventors: Venugopal Gopinathan, Raghavan Subramanian
  • Publication number: 20180068894
    Abstract: An example integrated circuit die includes: a plurality of lower level conductor layers, a plurality of lower level insulator layers between the plurality of lower level conductor layers, a plurality of lower level vias extending vertically through the lower level insulator layers, a plurality of upper level conductor layers overlying the lower level conductor layers, a plurality of upper level insulator layers between and surrounding the upper level conductor layers, a plurality of upper level vias; at least two scribe seals arranged to form a vertical barrier extending vertically from the semiconductor substrate to a passivation layer at an upper surface of the integrated circuit die; and at least one opening extending vertically through one of the at least two scribe seals and extending through: the upper level conductor layers, the upper level via layers, the lower level conductor layers, and the lower level via layers.
    Type: Application
    Filed: November 4, 2016
    Publication date: March 8, 2018
    Inventors: Subhashish Mukherjee, Raja Selvaraj, Venugopal Gopinathan
  • Publication number: 20170332945
    Abstract: 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: Application
    Filed: June 6, 2017
    Publication date: November 23, 2017
    Applicant: Angiometrix Corporation
    Inventors: Venugopal GOPINATHAN, Raghavan SUBRAMANIYAN, Goutam DUTTA, Nitin PATIL, Abhijit PATKI
  • Publication number: 20170180015
    Abstract: In described examples, a first die includes a primary LC tank oscillator having a natural frequency of oscillation to induce a forced oscillation in a secondary LC tank oscillator of a separate second die via a magnetic coupling between the primary LC tank oscillator and the secondary LC tank oscillator.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Patent number: 9675276
    Abstract: 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: Grant
    Filed: August 1, 2014
    Date of Patent: June 13, 2017
    Assignee: Angiometrix Corporation
    Inventors: Venugopal Gopinathan, Raghavan Subramaniyan, Goutam Dutta, Nitin Patil, Abhijit Patki
  • Patent number: 9596008
    Abstract: In apparatus for die-to-die communication, a first die includes at least a first circuit, and a second die includes at least a second circuit. The first die is separated by a fixed distance from the second die. In response to a signal, the first circuit is configured to induce a current in the second circuit via a magnetic coupling between the first circuit and the second circuit.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: March 14, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Publication number: 20160359528
    Abstract: In apparatus for die-to-die communication, a first die includes at least a first circuit, and a second die includes at least a second circuit. The first die is separated by a fixed distance from the second die. In response to a signal, the first circuit is configured to induce a current in the second circuit via a magnetic coupling between the first circuit and the second circuit.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Patent number: 9100035
    Abstract: A snapout calculator, and wherein the snapout calculator determines where the reference levels for the various comparators shall be placed after each asynchronous sample is generated.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 4, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Udayan Dasgupta, Abhijit A. Patki, Ganesan Thiagarajan, Janakiraman S, Madhulatha Bonu, Venugopal Gopinathan
  • Patent number: 9077360
    Abstract: An apparatus, comprising: an analog to digital converter including: a clipping detector; and a post-processor, wherein the post processor generates synchronous values of clipped data based on non-clipped values of non-clipped data.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Udayan Dasgupta, Ganesan Thiagarajan, Venugopal Gopinathan
  • Patent number: 8988266
    Abstract: A method, comprising: receiving an analog input; determining an upper outer rail and a lower outer rail as polling values to be used by voltage comparators; blanking at least three comparators; determining which two of the at least three comparators are closest to the input analog voltage levels; defining the two comparators which are closest to the analog input signal to be the next comparators of the next sampling process; assigning a remaining comparator at a voltage level in between the new top and bottom voltage levels; enabling the outer rails, but blanking the inner rail; progressively narrowing down the voltage range spanned by the two outer comparators; and generating a 2-tuple value of an asynchronous voltage comparator crossing.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 24, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Janakiraman S, Udayan Dasgupta, Ganesan Thiagarajan, Abhijit A. Patki, Madhulatha Bonu, Venugopal Gopinathan
  • Publication number: 20150038833
    Abstract: 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: Application
    Filed: August 1, 2014
    Publication date: February 5, 2015
    Applicant: ANGIOMETRIX CORPORATION
    Inventors: Venugopal GOPINATHAN, Raghavan SUBRAMANIYAN, Goutam DUTTA, Nitin PATIL, Abhijit PATKI
  • Publication number: 20140357186
    Abstract: In apparatus for die-to-die communication, a first die includes at least a first circuit, and a second die includes at least a second circuit. The first die is separated by a fixed distance from the second die. In response to a signal, the first circuit is configured to induce a current in the second circuit via a magnetic coupling between the first circuit and the second circuit.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Inventors: Subhashish Mukherjee, Venugopal Gopinathan
  • Patent number: 8830106
    Abstract: A method is provided. An analog signal is received. The analog input signal is compared to first and second reference signals to generate a first comparison result, and the first comparison result and a first time stamp corresponding to the first comparison result are registered. A first portion of a digital signal is generated from the first comparison result. At least one of the first and second reference signals is adjusted. A second comparison result is generated if the analog signal reaches an adjusted one of the first and second reference signals within a predetermined interval, and a second portion of the digital signal is generated from the second comparison result.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 9, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Udayan Dasgupta, Ganesan Thiagarajan, Venugopal Gopinathan