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: 12386030
    Abstract: A radar system with on-system calibration includes capabilities for radar detection and correction for system impairments to improve detection performance. The radar system is equipped with pluralities of transmit antennas and pluralities of receive antennas. The radar system uses a series of calibration measurements of a known object to estimate the system impairments. A correction is then applied to the beamforming weights to mitigate the effect of these impairments on radar detection. The estimation and correction requires no external measurement equipment and can be computed on the radar system itself.
    Type: Grant
    Filed: April 9, 2024
    Date of Patent: August 12, 2025
    Assignee: Robert Bosch GMBH
    Inventors: Murtaza Ali, Ali Erdem Ertan, Kevin B. Foltinek
  • Patent number: 12332376
    Abstract: A multi-chip MIMO radar system includes a plurality of transmitters and a plurality of receivers. Each of the pluralities of transmitters and receivers are arranged across a plurality of circuit chips. The multi-chip MIMO radar system includes a central processor configured to receive data from the plurality of circuit chips. The plurality of circuit chips generates sets of selected range, Doppler, and virtual receiver data. The central processor is operable to process the sets of selected range, Doppler, and virtual receiver data to produce selected range detection and angular resolvability of targets.
    Type: Grant
    Filed: February 12, 2024
    Date of Patent: June 17, 2025
    Assignee: Uhnder, Inc.
    Inventors: Monier Maher, Arunesh Roy, Murtaza Ali, Jean Pierre Bordes, Curtis Davis
  • Patent number: 12078748
    Abstract: A radar system includes an interference manager. The interference manager detects the presence and the characteristics of interfering radio signals used by other radar systems in proximity. The interference manager also controls the operating characteristics of the radar system in response to the detected interfering signal characteristics. The interference manager selects a time slot, or a frequency band, or a time slot and a frequency band to avoid or mitigate the interfering radio signals from other radar systems.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: September 3, 2024
    Assignee: Uhnder, Inc.
    Inventors: Ali Erdem Ertan, Murtaza Ali, Monier Maher, Aria Eshraghi, Curtis Davis
  • Publication number: 20240272276
    Abstract: A radar system with on-system calibration includes capabilities for radar detection and correction for system impairments to improve detection performance. The radar system is equipped with pluralities of transmit antennas and pluralities of receive antennas. The radar system uses a series of calibration measurements of a known object to estimate the system impairments. A correction is then applied to the beamforming weights to mitigate the effect of these impairments on radar detection. The estimation and correction requires no external measurement equipment and can be computed on the radar system itself.
    Type: Application
    Filed: April 9, 2024
    Publication date: August 15, 2024
    Inventors: Murtaza Ali, Ali Erdem Ertan, Kevin B. Foltinek
  • Publication number: 20240183941
    Abstract: A multi-chip MIMO radar system includes a plurality of transmitters and a plurality of receivers. Each of the pluralities of transmitters and receivers are arranged across a plurality of circuit chips. The multi-chip MIMO radar system includes a central processor configured to receive data from the plurality of circuit chips. The plurality of circuit chips generates sets of selected range, Doppler, and virtual receiver data. The central processor is operable to process the sets of selected range, Doppler, and virtual receiver data to produce selected range detection and angular resolvability of targets.
    Type: Application
    Filed: February 12, 2024
    Publication date: June 6, 2024
    Inventors: Monier Maher, Arunesh Roy, Murtaza Ali, Jean Pierre Bordes, Curtis Davis
  • Patent number: 11953615
    Abstract: A radar system with on-system calibration for cross-coupling and gain/phase variations includes capabilities for radar detection and correction for system impairments to improve detection performance. The radar system is equipped with pluralities of transmit antennas and pluralities of receive antennas. The radar system uses a series of calibration measurements of a known object to estimate the system impairments. A correction is then applied to the beamforming weights to mitigate the effect of these impairments on radar detection. The estimation and correction requires no external measurement equipment and can be computed on the radar system itself.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 9, 2024
    Assignee: Uhnder Inc.
    Inventors: Murtaza Ali, Ali Erdem Ertan, Kevin B. Foltinek
  • Patent number: 11921229
    Abstract: An apparatus, including processing unit (PU) cores and computer readable storage devices storing machine instructions for determining a distance between a target object and a radar sensor circuit. The PU cores receive a beat signal generated by the radar sensor circuit and compensate for a phase difference between the received beat signal and a reconstruction of the received beat signal to obtain a phase compensated beat signal. The phase compensated beat signal is then filtered to remove spurious reflections by demodulating the phase compensated beat signal using an estimated frequency of the phase compensated beat signal. The PU cores then apply a low pass filter to the demodulated phase compensated beat signal, resulting in a modified beat signal. The PU cores then determine the distance between the target object and the radar sensor circuit using the modified beat signal.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: March 5, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Muhammad Zubair Ikram, Adeel Ahmad, Dan Wang, Murtaza Ali
  • Patent number: 11906620
    Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: February 20, 2024
    Assignee: Uhnder, Inc.
    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
  • Patent number: 11899126
    Abstract: A multi-chip MIMO radar system includes a plurality of transmitters and a plurality of receivers. Each of the pluralities of transmitters and receivers are arranged across a plurality of chips. The multi-chip MIMO radar system includes a central processor configured to receive data from the plurality of chips. The central processor is operable to combine the information from each radar chip to produce improved range detection and angular resolvability of targets.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: February 13, 2024
    Assignee: Uhnder, Inc.
    Inventors: Monier Maher, Arunesh Roy, Murtaza Ali, Jean Pierre Bordes, Curtis Davis
  • Publication number: 20240036584
    Abstract: A radar system includes a transmitter pipeline, a receiver pipeline, and a controller. The transmitter pipeline includes transmitters, each transmitting radio signals. The receiver pipeline includes receivers, each receiving radio signals that include signals transmitted by the transmitters and reflected from objects in an environment. The controller is configured to control the operation of the transmitter pipeline and the receiver pipeline as defined by a coordination signal received from a local controller. At least one of the transmitter pipeline and the receiver pipeline avoid interference from other radar systems as defined by the controller.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 1, 2024
    Inventors: Wayne E. Stark, Ali Erdem Ertan, Murtaza Ali
  • Patent number: 11867828
    Abstract: A radar system operated in a variable power mode includes transmitters, receivers, and a controller. The transmitters transmit digitally modulated signals. The receivers receive radio signals that include transmitted radio signals from the transmitter and reflected from objects in the environment. In addition, an interfering radar signal from a different radar system is received that has been linearly frequency modulated. Each receiver includes a linear frequency modulation canceler that includes a FIR filter, and is configured as a 1-step linear predictor with least mean squares adaptation to attempt to cancel the interfering signal. The prediction is subtracted from the FIR input signal that drives the adaptation and also comprises the canceler output. The controller is configured to control the adaptation on a first receiver. The controller delays the adaptation such that transients at the start of each receive pulse are avoided.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: January 9, 2024
    Assignee: Uhnder, Inc.
    Inventors: Richard T. Behrens, Fred Harris, Frederick Rush, Monier Maher, Curtis Davis, Murtaza Ali
  • Publication number: 20230408640
    Abstract: A radar system that uses a range walk compensation algorithm to reduce system losses resulting from moving targets. During the coherent integration of pulse radar systems, the conventional Fast Fourier Transform (FFT) for Doppler processing needs to change the input range bin number in accordance to the velocity of the target. The algorithm allows for configuration of Doppler groups to compute several Dopplers with one FFT. Each Doppler group has a transform Doppler that is close to the center of the group which will dictate the change of range bins for the input data to the FFT. As the range bins are changed, there are two input filter techniques: nearest bin select, and 2-tap filter. After range walk compensation processes all Doppler groups by FFT, the resultant output block has much higher coherent integration as compared to just a conventional FFT.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Inventors: Christopher Deng, Murtaza Ali, Paul W. Dent, Aria Eshraghi, Monier Maher
  • Publication number: 20230408671
    Abstract: A radar system that uses fast frequency hopping transmit waveform and filter bank receiver consisting of both analog and digital components. The waveform steps discrete frequency tones with short duration and modulates a continuous phase signal on each tone. The frequency hopping patterns are generated using pseudo-random permutation or low-collision method of anti-causal code shifting. To process waveform at radar receiver, a filter bank is used with squelching switches and controls to reduce distortion from strong signal into the receiver. Using the Strong Return Estimator, the timing of the strong signal is used to control the squelching switches.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Inventors: Christopher Deng, Murtaza Ali, Marius Goldenberg, Aria Eshraghi, Monier Maher, James Maligeogos
  • Publication number: 20230394244
    Abstract: Detection of interaction events in recorded audio streams is disclosed, including: detecting an interaction event within a recorded audio stream; analyzing text before and after the interaction event in the recorded audio stream to determine a causer of the interaction event; and determining an action to be performed in response to the interaction event based at least in part on the causer of the interaction event.
    Type: Application
    Filed: February 1, 2023
    Publication date: December 7, 2023
    Inventors: Jithendra Vepa, Krishnachaitanya Gogineni, Ayush Kumar, Digvijay Anil Ingle, Murtaza Ali, Bhasker Sharma, Sreeram Rajagopalan
  • Patent number: 11821981
    Abstract: A method for operating a radar sensing system includes configuring a transmitter to transmit a radio signal. A receiver is configured to receive radio signals. The received radio signals include the transmitted radio signal transmitted by the transmitter and reflected from objects in the environment. The method includes with advanced temporal knowledge of the codes used to modulate the transmitted radio signal, using code values of the plurality of codes, and in combination with a bank of digital finite impulse response (FIR) filters, generating complementary signals of any self-interference noise. The method further includes subtracting the complementary signals at one or more points in the receiver prior to the interference desensing the receiver. The radar sensing system further includes a frequency modulated continuous wave (FMCW) interference canceller for detecting the largest interference signals and sequentially cancelling them while signal processing the received radio signals.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: November 21, 2023
    Assignee: UHNDER, INC.
    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
  • Patent number: 11796628
    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: May 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Jasbir Singh Nayyar, Brian Paul Ginsburg, Sudipto Bose, Murtaza Ali
  • Patent number: 11726172
    Abstract: A radar sensing system includes a plurality of transmitters configured to transmit radio signals and a plurality of receivers configured to receive radio signals. First and second transmitters of the plurality of transmitters are configured to generate radio signals defined by first and second spreading code chip sequences, respectively. A first receiver of the plurality of receivers processes received radio signals as defined by a plurality of spreading code chip sequences that includes at least the first and second spreading code chip sequences. The radar sensing system also includes a code generator for generating the spreading code chip sequences.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 15, 2023
    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: 20230243964
    Abstract: A method for operating a radar sensing system includes configuring a transmitter to transmit a radio signal. A receiver is configured to receive radio signals. The received radio signals include the transmitted radio signal transmitted by the transmitter and reflected from objects in the environment. The method includes with advanced temporal knowledge of the codes used to modulate the transmitted radio signal, using code values of the plurality of codes, and in combination with a bank of digital finite impulse response (FIR) filters, generating complementary signals of any self-interference noise. The method further includes subtracting the complementary signals at one or more points in the receiver prior to the interference desensing the receiver. The radar sensing system further includes a frequency modulated continuous wave (FMCW) interference canceller for detecting the largest interference signals and sequentially cancelling them while signal processing the received radio signals.
    Type: Application
    Filed: March 28, 2023
    Publication date: August 3, 2023
    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
  • Patent number: 11681017
    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: Grant
    Filed: March 11, 2020
    Date of Patent: June 20, 2023
    Assignee: Uhnder, Inc.
    Inventors: Richard Behrens, Frederick Rush, Monier Maher, Murtaza Ali
  • Publication number: 20230176179
    Abstract: A radar system with enhanced processing for increased contrast ratio, improved angular separability and accuracy, and elimination of ghost targets. The radar system is equipped with transmitters, receivers, pluralities of transmit antennas, and pluralities of receive antennas. The enhanced processing chain on-board the radar system iteratively detects target(s) by first finding the strongest target, subtracting the estimated received signal from the detected target, and repeating the process for subsequent targets until a predefined number of iterations is completed or an exit condition is tripped. The enhanced processing chain's subtraction increases the contrast ratio of detectable targets. The detection is thus refined by determining optimal azimuth, elevation, gain, and phase of each detection through a joint optimization of all detections. The subtraction and refinement aid in eliminating ghost targets by removing sidelobe signals and residual errors that cause ghost targets to appear.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 8, 2023
    Inventors: Andrew Graff, Lun Chen, Murtaza Ali, Jingning Tang, Suleyman Gokhun Tanyer, Paul W. Dent