Patents by Inventor Murtaza Ali

Murtaza Ali 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: 10935633
    Abstract: A radar sensing system for a vehicle has multiple transmitters and receivers on a vehicle. The transmitters are configured to transmit radio signals which are reflected off of objects in the environment. There are one or more receivers that receive the reflected radio signals. Each receiver has an antenna, a radio frequency front end, an analog-to-digital converter (ADC), and a digital signal processor. The transmitted signals are based on spreading codes generated by a programmable code generation unit. The receiver also makes use of the spreading codes generated by the programmable code generation unit. The programmable code generation unit is configured to selectively generate particular spreading codes that have desired properties.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: March 2, 2021
    Assignee: Uhnder, Inc.
    Inventors: Monier Maher, Jean Pierre Bordes, Wayne E. Stark, Raghunath Krishna Rao, Frederick Rush, Curtis Davis, Srikanth Gollapudi, Steve Borho, Murtaza Ali
  • Patent number: 10817909
    Abstract: A method of operating a health tracking system includes utilizing user profile data for a user and health parameter data received from a health tracking device associated with the user to derive parameters relating to the user. The parameters are compared to tags associated with content pages or objects to determine a relevancy or match. Particular ones of a plurality of content pages or objects are selected for delivery to the user based on the comparison.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: October 27, 2020
    Assignee: Under Armour, Inc.
    Inventors: Jeremy Zedell, Murtaza Ali, Ralph Marczynski, Mary Lawyer, Ken Valencik, Sid Jatia, Barbra Sainsurin
  • Patent number: 10809365
    Abstract: A frequency modulated continuous wave (FMCW) radar system that includes a transceiver coupled to an analog to digital converter (ADC), and a digital signal processor (DSP) coupled to the ADC. The transceiver is configured to transmit a plurality of FMCW chirps, receive a plurality of reflected FMCW chirps, and mix the plurality of reflected FMCW chirps with at least one of the FMCW chirps to generate a plurality of beat signals. The reflected FMCW chirps are the FMCW chirps after being reflected off of a target object. The ADC is configured to convert the beat signals into a plurality of digital chirps. The DSP is configured to receive the digital chirps and quantify a plurality of vibration parameters for the target object based on a comparison of phase information in a frequency domain between one of the plurality of FMCW chirps and one of the plurality of digital chirps.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: October 20, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sujeet Milind Patole, Anand Dabak, Lei Ding, Murtaza Ali
  • Publication number: 20200292665
    Abstract: A radar sensing system includes a transmitter and a receiver. The transmitter is configured to transmit a radio signal. The receiver is configured to receive radio signals that include the transmitted radio signal reflected from objects in the environment. The transmitter and receiver are configured to distribute the signal power over frequency so that it is separated from noise and impairments at DC and low frequencies as may be caused by some radar system components which introduce DC offsets and/or low frequency (e.g. flicker) noise.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Richard Behrens, Frederick Rush, Monier Maher, Murtaza Ali
  • Publication number: 20200292687
    Abstract: In the proposed low complexity technique a hierarchical approach is created. An initial FFT based detection and range estimation gives a coarse range estimate of a group of objects within the Rayleigh limit or with varying sizes resulting from widely varying reflection strengths. For each group of detected peaks, demodulate the input to near DC, filter out other peaks (or other object groups) and decimate the signal to reduce the data size. Then perform super-resolution methods on this limited data size. The resulting distance estimations provide distance relative to the coarse estimation from the FFT processing.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 17, 2020
    Inventors: Murtaza Ali, Dan Wang, Muhammad Zubair Ikram
  • Publication number: 20200284873
    Abstract: A radar sensing system for a vehicle has multiple transmitters and receivers on a vehicle. The transmitters are configured to transmit radio signals which are reflected off of objects in the environment. There are one or more receivers that receive the reflected radio signals. Each receiver has an antenna, a radio frequency front end, an analog-to-digital converter (ADC), and a digital signal processor. The transmitted signals are based on spreading codes generated by a programmable code generation unit. The receiver also makes use of the spreading codes generated by the programmable code generation unit. The programmable code generation unit is configured to selectively generate particular spreading codes that have desired properties.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 10, 2020
    Inventors: Monier Maher, Jean Pierre Bordes, Wayne E. Stark, Raghunath Krishna Rao, Frederick Rush, Curtis Davis, Srikanth Gollapudi, Steve Borho, Murtaza Ali
  • Publication number: 20200225315
    Abstract: A cascaded radar system is provided that includes a first radar system-on-a-chip (SOC) operable to perform an initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels of the radar SOC, a second radar SOC operable to perform the initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels in the radar SOC, and a processing unit coupled to the first radar SOC and the second radar SOC to receive results of the initial portion of signal processing from each radar SOC, the processing unit operable to perform a remaining portion of the signal processing for object detection using these results.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 16, 2020
    Inventors: Jasbir Singh Nayyar, Brian Paul Ginsburg, Sudipto Bose, Murtaza Ali
  • Patent number: 10670695
    Abstract: A radar sensing system for a vehicle has multiple transmitters and receivers on a vehicle. The transmitters are configured to transmit radio signals which are reflected off of objects in the environment. There are one or more receivers that receive the reflected radio signals. Each receiver has an antenna, a radio frequency front end, an analog-to-digital converter (ADC), and a digital signal processor. The transmitted signals are based on spreading codes generated by a programmable code generation unit. The receiver also makes use of the spreading codes generated by the programmable code generation unit. The programmable code generation unit is configured to selectively generate particular spreading codes that have desired properties.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: June 2, 2020
    Assignee: Uhnder, Inc.
    Inventors: Monier Maher, Jean Pierre Bordes, Wayne E. Stark, Raghunath Krishna Rao, Frederick Rush, Curtis Davis, Srikanth Gollapudi, Steve Borho, Murtaza Ali
  • Publication number: 20200150256
    Abstract: A chip-implementation of a millimeter wave MIMO radar comprises transmitters for transmitting short bursts of digitally modulated radar carrier signals and receivers for receiving delayed echoes of those signals. Various signal formats defined by the number of bits per transmit burst, the transmit burst duration, the receive period duration, the bitrate, the number of range bins, and the number of bursts per scan, facilitate the choice of modulating bit patterns such that when correlating for target echoes over an entire scan, the correlation codes for different ranges and different transmitters are mutually orthogonal or nearly so. In the event of imperfect orthogonality, simple orthogonalization schemes are revealed, such as subtraction of strong already-detected target signals for better detecting weaker signals or moving targets that are rendered non-orthogonal by their Doppler shift.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 14, 2020
    Inventors: Paul W. Dent, Curtis Davis, Murtaza Ali
  • Publication number: 20200153907
    Abstract: A shared radar and communications system. The system includes a transmitter and a receiver. The transmitter modules signals based on a first spreading code defined at least in part by a first plurality of information bits. The first plurality of information bits encodes selected information. The transmitter transmits the modulated signals. The receiver receives a first signal and a second signal. The first signal includes the transmitted signals transmitted by the transmitter and reflected from objects in an environment. The receiver processes the first signal to detect objects in the environment. The second signal is transmitted from another system. The second signal carries a second plurality of information bits. The receiver processes the second signal to determine the second plurality of information bits. The second plurality of information bits are encoded with information selected by the other system.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Curtis Davis, Manju Hegde, Wayne E. Stark, Aria Eshraghi, Marius Goldenberg, Murtaza Ali
  • Publication number: 20200125180
    Abstract: A system includes a frequency modulated continuous wave (FMCW) transceiver, a processor, and a memory. The memory stores program instructions that, when executed by the processor, cause the system to receive a signal representative of an FMCW signal reflected from an object of interest, apply a first Fourier transform to the signal to obtain range data, identify a subset of the range data corresponding to a region of interest, apply a second Fourier transform on the identified subset of the range data to obtain velocity data corresponding to the identified subset of the range data, and identify a gesture performed by the object of interest based on at least a portion of velocity data.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: Gregory Jan MALYSA, Murtaza ALI, Dan WANG, Lorin Paul NETSCH
  • Patent number: 10627480
    Abstract: A cascaded radar system is provided that includes a first radar system-on-a-chip (SOC) operable to perform an initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels of the radar SOC, a second radar SOC operable to perform the initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels in the radar SOC, and a processing unit coupled to the first radar SOC and the second radar SOC to receive results of the initial portion of signal processing from each radar SOC, the processing unit operable to perform a remaining portion of the signal processing for object detection using these results.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 21, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jasbir Singh Nayyar, Brian Paul Ginsburg, Sudipto Bose, Murtaza Ali
  • Patent number: 10613208
    Abstract: In the proposed low complexity technique a hierarchical approach is created. An initial FFT based detection and range estimation gives a coarse range estimate of a group of objects within the Rayleigh limit or with varying sizes resulting from widely varying reflection strengths. For each group of detected peaks, demodulate the input to near DC, filter out other peaks (or other object groups) and decimate the signal to reduce the data size. Then perform super-resolution methods on this limited data size. The resulting distance estimations provide distance relative to the coarse estimation from the FFT processing.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: April 7, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Murtaza Ali, Dan Wang, Muhammad Zubair Ikram
  • Patent number: 10551482
    Abstract: A radar system is described that comprises a transmitter and a receiver. The transmitter transmits radio signals. The receiver receives interfering signals due to local signal coupling of transmitted signals. The local signal coupling comprises at least one interfering path or mechanism. The receiver is configured to output a replica of each of the interfering signals. Each replica is configured to replicate a particular interfering signal received. The receiver is configured to combine into a signal path a replica of an interfering signal to subtract the interfering signal from the signal path. The receiver receives the transmitted radio signals transmitted by the transmitter and reflected from objects in an environment without saturating the signal path due to the subtraction of the interfering signal from the signal path.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 4, 2020
    Assignee: Uhnder, Inc.
    Inventors: Aria Eshraghi, Jean P. Bordes, Curtis Davis, Raghunath K. Rao, Murtaza Ali, Paul W. Dent
  • Patent number: 10539669
    Abstract: A method for tracking objects in three dimensions in a radar system is provided that includes receiving spherical coordinates of an estimated location of each object of a plurality of detected objects, a range rate of each object, and variances for the spherical coordinates and the range rate of each object, determining whether or not each object is currently being tracked, updating a tracking vector for an object based on the object spherical coordinates, range rate, and variances when the object is currently being tracked, and initializing a tracking vector for an object when the object is not currently being tracked, wherein a tracking vector for an object is a process state vector for an extended Kalman filter designed to track an object, elements of the tracking vector including Cartesian coordinates of the object location, the object velocity in three directions, and the object acceleration in three directions.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: January 21, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Muhammad Zubair Ikram, Murtaza Ali
  • Patent number: 10534083
    Abstract: Systems and methods for color Doppler imaging in an ultrasound imaging system are disclosed herein. An ultrasound imaging system includes color Doppler imaging circuitry. The color Doppler imaging circuitry is configured to estimate flow parameters. The imaging circuitry includes a radio frequency (“RF”) demodulator configured to produce in-phase and quadrature components of an ultra-sound data vector. The RF demodulator includes a table in memory that stores interleaved sine and cosine values. The RF demodulator maintains an index value for the table having higher precision than is used to index the table. The RF demodulator rounds the index value for each access of the table. Each table access retrieves a sine value and a cosine value.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: January 14, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Udayan Dasgupta, David P. Magee, Murtaza Ali
  • Patent number: 10536529
    Abstract: A shared radar and communication system for a vehicle includes capabilities for radar detection and communication with vehicles equipped with similar systems. A transmitter transmits a modulated radio signal that is modulated based upon at least one of a first spreading code and a second spreading code. The second spreading code is defined by a first plurality of information bits. A receiver receives radio signals that include the transmitted radio signals transmitted by the transmitter and reflected from objects in an environment. A control unit is configured to select the first plurality of information bits. The selection of the information bits encodes selected information for transmission via the transmitted modulated radio signal to be received by another radar sensing system.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 14, 2020
    Assignee: Uhnder Inc.
    Inventors: Curtis Davis, Manju Hegde, Wayne E. Stark, Aria Eshraghi, Marius Goldenberg, Murtaza Ali
  • Patent number: 10514770
    Abstract: A gesture recognition system is shown using a 77 GHz FMCW radar system. The signature of a gesturing hand is measured to construct an energy distribution in velocity space over time. A gesturing hand is fundamentally a dynamical system with unobservable “state” (i.e. the type of the gesture) which determines the sequence of associated observable velocity-energy distributions, therefore a Hidden Markov Model is used to for gesture recognition. A method for reducing the length of the feature vectors by a factor of 12 is also shown, by re-parameterizing the feature vectors in terms of a sum of Gaussians without decreasing the recognition performance.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 24, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gregory Jan Malysa, Murtaza Ali, Dan Wang, Lorin Paul Netsch
  • Patent number: 10481242
    Abstract: This invention is present an iterative method for joint antenna array calibration and direction of arrival estimation using millimeter-wave (mm-Wave) radar. The calibration compensates for array coupling, phase, and gain errors and does not require any training data. This method is well suited for applications where multiple antenna elements are packaged in a chip and where offline calibration is either expensive or is not possible. This invention is also effective when the array coupling is a function of direction of arriving waves from the object. It is also applicable to any two-dimensional array shape. Real experiment results demonstrate the viability of the algorithm using real data collected from a four-element array.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: November 19, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Muhammad Zubair Ikram, Murtaza Ali
  • Publication number: 20190271776
    Abstract: A radar system has different modes of operation. In a method for operating the radar system, at least one of one or more transmitters are configured to transmit modulated continuous-wave radio signals, while at least one of one or more receivers are configured to receive radio signals. The received radio signals include the transmitted radio signals transmitted by the one or more transmitters and reflected from objects in the environment. The method further includes selectively modifying an operational parameter of at least one of the transmitters or at least one of the receivers. The selected operational parameter is modified to meet changing operational requirements of the radar sensing system.
    Type: Application
    Filed: April 15, 2019
    Publication date: September 5, 2019
    Inventors: Curtis Davis, Monier Maher, Jean P. Bordes, Manju Hegde, Otto A. Schmid, Raghunath K. Rao, Marius Goldenberg, Aria Eshraghi, Vito Giannini, David S. Trager, Nikhilesh Bhagat, Srikanth Gollapudi, Sundar Govindarajan, Steve Borho, Jonathan Preussner, Paul W. Dent, Paul Bassett, Stephen W. Alland, Fred Harris, Wayne E. Stark, Murtaza Ali