Patents by Inventor Milutin Pajovic

Milutin Pajovic 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: 11121816
    Abstract: An apparatus for processing a perturbation quantity received in a wireless network. The perturbation quantity including a non-linear effect from at least one transmitted signal of the wireless network. The apparatus including a Base Station (BS) configured to establish a link between the BS and a user equipment (UE). A processing circuit is configured to implement receiver-side decoders. Wherein a receiver-side decoder is configurable to provide a recovery of unknown symbols perturbed by the perturbation quantity, the recovery is at a receiver-side and the perturbation is at the transmitter-side. Provide receiver-side decoding for symbol detection of symbol-dependent transmit-side perturbations by imposing a hierarchical signal model on the transmitted symbol.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 14, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Pu Wang, Toshiaki Koike-Akino, Milutin Pajovic, Philip Orlik
  • Patent number: 11122397
    Abstract: A communication system using beamforming transmission in a millimeter wave spectrum in an environment. A memory with data including values indicative of link attributes associated with beam signal measurements with states of devices and states of environments. The states of the devices for each device including types of user behavior, locations and poses in each environment. The states of the environments for each environment including, locations of physical objects and types of behavior of ambient users. Control circuitry performs beam training with a target device in environment to measure beam signal values and environmental responses for different beams transmitted over the different beam angles. Selects, in response to the beam training, at least one dominant angle for a beamforming communication with the target device. Estimates, one of a state of the target device or a state of the environment, corresponding to environmental responses for different beams estimated during the beam training.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: September 14, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Toshiaki Koike-Akino, Pu Wang, Philip Orlik
  • Publication number: 20210239472
    Abstract: A robot configured for multi-robot pose estimation execute iteratively the primary particle filter and the secondary particle filter independently from each other to update the pose estimations in the primary and the secondary particles. In response to each encounter of the robot with a neighboring robot, the robot receives neighboring particles of a particle filter of the neighboring robot identifying poses and likelihoods of the poses of the neighboring robot and replaces the primary particles of the primary particle filter with the secondary particles fused with the neighboring particles. The robot outputs its pose according to the primary particles of the primary particle filter.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 5, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Philip Orlik
  • Publication number: 20210176008
    Abstract: An apparatus for processing a perturbation quantity received in a wireless network. The perturbation quantity including a non-linear effect from at least one transmitted signal of the wireless network. The apparatus including a Base Station (BS) configured to establish a link between the BS and a user equipment (UE). A processing circuit is configured to implement receiver-side decoders. Wherein a receiver-side decoder is configurable to provide a recovery of unknown symbols perturbed by the perturbation quantity, the recovery is at a receiver-side and the perturbation is at the transmitter-side. Provide receiver-side decoding for symbol detection of symbol-dependent transmit-side perturbations by imposing a hierarchical signal model on the transmitted symbol.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 10, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Pu Wang, Toshiaki Koike-Akino, Milutin Pajovic, Philip Orlik
  • Publication number: 20210152990
    Abstract: A communication system using beamforming transmission in a millimeter wave spectrum in an environment. A memory with data including values indicative of link attributes associated with beam signal measurements with states of devices and states of environments. The states of the devices for each device including types of user behavior, locations and poses in each environment. The states of the environments for each environment including, locations of physical objects and types of behavior of ambient users. Control circuitry performs beam training with a target device in environment to measure beam signal values and environmental responses for different beams transmitted over the different beam angles. Selects, in response to the beam training, at least one dominant angle for a beamforming communication with the target device. Estimates, one of a state of the target device or a state of the environment, corresponding to environmental responses for different beams estimated during the beam training.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 20, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Toshiaki Koike-Akino, Pu Wang, Philip Orlik
  • Publication number: 20210149039
    Abstract: A system for keyless entry applications using beamforming transmission in a millimeter wave spectrum in an environment. A memory with data including values indicative of link attributes associated with beam signal measurements with states of devices and states of environments. The states of the devices for each device including types of user behavior, locations and poses in each environment. Control circuitry performs beam training with a target device associated with at least one keyless entry application in the environment to measure beam signal values and environmental responses for different beams transmitted over the different beam angles. Selects, in response to the beam training, at least one dominant angle for a beamforming communication with the target device. Estimates, a state of the target device associated with the at least one keyless entry application or a state of the environment, corresponding to environmental responses for different beams estimated during the beam training.
    Type: Application
    Filed: December 9, 2019
    Publication date: May 20, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Toshiaki Koike-Akino, Pu Wang, Milutin Pajovic, Philip Orlik
  • Publication number: 20210146974
    Abstract: A system for railway applications using beamforming transmission in a millimeter wave spectrum between antennas of a Communications Based Train Control (CBTC) system and devices in an environment. Performing a beam training with a target device of the devices located in the environment to measure beam signal values and environmental responses for different beams transmitted over the different beam angles using control circuitry connected with the antennas. Control circuitry selects, in response to the beam training, at least one dominant angle for a beamforming communication with the target device. Access stored fingerprinting data that includes values indicative of link attributes associated with beam signal measurements with states of devices and states of environments. Estimating from the mapping stored fingerprinting data, a state of the target device and/or a state of the environment, corresponding to environmental responses for different beams estimated during the beam training.
    Type: Application
    Filed: December 10, 2019
    Publication date: May 20, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Pu Wang, Milutin Pajovic, Toahiaki Koike-Akino, Philip Orlik
  • Publication number: 20210103290
    Abstract: A robot performs simultaneous localization and mapping (SLAM) using a particle filter to process sensor measurements of movements of the robot in an environment and occupied locations in the environment to produce a set of particles. Each particle includes a map of the environment and a pose of the robot in the environment to represent a probability that the environment has the map oriented with respect to the pose of the robot. The robot receives a set of particles of a neighboring robot and, in response to receiving the set of particles of the neighboring robot, updates maps of probabilistically sampled particles of the robot with maps of probabilistically sampled particles of the neighboring robot. The update includes merging a map of the sampled particle of the robot with a map of the sampled particle of the neighboring robot roto-translated based on a relative pose between the robots.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 8, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Nathaniel Moore Glaser, Philip Orlik
  • Patent number: 10921383
    Abstract: A battery diagnostic system stores capacity degradation models for batteries of a specific type mapped to sets of battery cycle models formed by voltages and/or currents measured at different capacities. Each capacity degradation model is mapped to a set of battery cycle models associated with different battery capacities. The system, upon accepting measurements indicative of a battery cycle and a current capacity of the test battery, compares the battery cycle of the test battery with the battery cycle models of different capacity degradation models associated with a value of the battery capacity closest to the current capacity of the test battery to select a battery cycle model closest to the battery cycle of the test battery and the degradation capacity model mapped to the selected battery cycle model. The system estimates future degradation of the capacity of the test battery based on the retrieved capacity degradation model.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 16, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Philip Orlik
  • Patent number: 10917192
    Abstract: A communication system receives a jammed signal including a sequence of complex numbers encoding one or combination of symbols transmitted by multiple transmitters. The system transforms the sequence of complex numbers into an image of real numbers having at least two columns and multiple rows, with real values of real and imaginary parts of each complex number forming different columns but the same row of the first image, processes the image with a neural network trained to suppress the wideband signal in the received signal, and detects the symbols transmitted by the transmitters from the de-jammed signal.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 9, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Koike Akino Toshiaki, Philip Orlik
  • Publication number: 20200295863
    Abstract: A communication system receives a jammed signal including a sequence of complex numbers encoding one or combination of symbols transmitted by multiple transmitters. The system transforms the sequence of complex numbers into an image of real numbers having at least two columns and multiple rows, with real values of real and imaginary parts of each complex number forming different columns but the same row of the first image, processes the image with a neural network trained to suppress the wideband signal in the received signal, and detects the symbols transmitted by the transmitters from the de jammed signal.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 17, 2020
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Koike Akino Toshiaki, Philip Orlik
  • Publication number: 20200284846
    Abstract: A battery diagnostic system stores capacity degradation models for batteries of a specific type mapped to sets of battery cycle models formed by voltages and/or currents measured at different capacities. Each capacity degradation model is mapped to a set of battery cycle models associated with different battery capacities. The system, upon accepting measurements indicative of a battery cycle and a current capacity of the test battery, compares the battery cycle of the test battery with the battery cycle models of different capacity degradation models associated with a value of the battery capacity closest to the current capacity of the test battery to select a battery cycle model closest to the battery cycle of the test battery and the degradation capacity model mapped to the selected battery cycle model. The system estimates future degradation of the capacity of the test battery based on the retrieved capacity degradation model.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 10, 2020
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Philip Orlik
  • Publication number: 20200164508
    Abstract: A system for estimating a pose of a robot includes a particle filter to track the pose of the robot using particles that defining a probability of pose of the robot and a particle tuner to update the particles of the robot based on particles of neighboring robot. Upon receiving data indicative of relative pose between a pose of the robot and a pose of a neighboring robot, and particles of the neighboring robot, the particle tuner pairs an arbitrarily sampled particle of the robot with an arbitrarily sampled particle of the neighboring robot, determines a weight of the paired particles in reverse proportion to an error between a relative pose defined by the paired particles and the relative pose between the robot and the neighboring robot, and updates the particles of the robot in accordance to the weights of corresponding paired particles.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Inventors: Milutin Pajovic, Vikrant Shah, Philip Orlik
  • Patent number: 10564222
    Abstract: Methods and systems for predicting an unknown voltage of a battery corresponding to a future current demand for at least one time instant. The method including determining parameters of a first joint Gaussian distribution of a set of historical values of the voltage prediction of the battery from a set of historical measured physical quantities of the state of the battery stored in the memory. Determining a second joint Gaussian distribution of the unknown voltage and the set of historical values of the voltage prediction of the battery, based on a present measured physical quantities of the battery, the set of historical measured physical quantities and the determined parameters of the first joint Gaussian distribution. Determining a mean and a variance of an unknown voltage of the battery from the second joint Gaussian distribution, to obtain the predicted unknown voltage of the battery.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 18, 2020
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Zafer Sahinoglu, Yebin Wang, Philip Orlik
  • Patent number: 10554309
    Abstract: A method decodes an optical signal transmitted over an optical channel from a transmitter to a receiver. The method produces, from the transmitted optical signal, a digital signal including received data symbols and received pilot symbols and determines phase noise on the pilot symbols using a statistical probability distribution of phase noise on the optical channel and errors between phases of the received pilot symbols and the transmitted pilot signals. The method estimates phase noise on the data symbols using an interpolation of the phase noise on the pilot symbols and compensates the digital signal with the phase noise on the data symbols to produce a filtered signal with an equalized phase. The method demodulates and decodes the filtered signal to produce an estimate of the transmitted optical signal.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: February 4, 2020
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: David Millar, Milutin Pajovic, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
  • Patent number: 10541839
    Abstract: A receiver for use in a wireless communication system to receive signals transmitted over a wireless channel. The receiver includes a plurality of radio-frequency (RF) chains coupled a plurality of antennas. Each RF chain has at least one-bit analog-to-digital converter (ADC) to convert each measurement of an analog signal received by the antenna into at least one bit of information representing a result of a comparison of the measurement with a randomly selected threshold to produce a sequence of bits and a corresponding sequence of thresholds. Each bit in the sequence of bits represents a relative value of the measurement of the analog signal with respect to a threshold from the corresponding sequence of thresholds. A processor coupled to the plurality of RF chains estimates parameters of the wireless channel using the sequences of bits and the corresponding sequences of thresholds received from the plurality of RF chains.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: January 21, 2020
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Pu Wang, Milutin Pajovic, Philip Orlik, Petros Boufounos
  • Patent number: 10514437
    Abstract: A method for tracking a device determines correlations among locations of the device including a set of previous locations of the device and an initial estimate of a current location of the device, and determines, for each access point (AP), a current path loss exponent for the current location of the device using previous path loss exponents determined for the previous locations of the device and the correlations among the locations of the device. The method determines the current location of the device according to a path loss model using received signal strengths (RSS) of signals received from each AP at the current location and the current path loss exponent determined for each AP. The current path loss exponent for each AP are updated using the current location of the device and the RSS of signals received from the corresponding AP.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: December 24, 2019
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Philip Orlik
  • Patent number: 10498558
    Abstract: A communication system includes a receiver to receive a signal with symbols encoded with a spreading code selected from a set of spreading codes, a filter to produce a filtered signal using a number of correlators less than a number of the spreading codes in the set of spreading codes, and a detector to detect the symbols transmitted by the transmitters from the filtered signal using sparse recovery with the dictionary matrix. The communication system also includes a processor to determine a minimum mean squared error (MMSE) matrix based on the set of spreading codes and a variance of noise in the channels, project the MMSE matrix to a low-dimensional space to produce a low-dimensional MMSE matrix, update the set of coefficients of set of correlators with the elements of the low-dimensional MMSE matrix, and update elements of a dictionary matrix based on the elements of the low-dimensional MMSE matrix.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: December 3, 2019
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Philip Orlik
  • Publication number: 20190349222
    Abstract: A communication system includes a receiver to receive a signal with symbols encoded with a spreading code selected from a set of spreading codes, a filter to produce a filtered signal using a number of correlators less than a number of the spreading codes in the set of spreading codes, and a detector to detect the symbols transmitted by the transmitters from the filtered signal using sparse recovery with the dictionary matrix.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 14, 2019
    Inventors: Milutin Pajovic, Philip Orlik
  • Patent number: 10425910
    Abstract: A millimeter-wave (mmWave) communication system for determining a location of a first device based on a known location of a second device includes a transceiver connected to a set of antennas to communicate beams of mmWaves and to perform an estimation of a channel connecting the first device and the second device and a memory to store results of the channels estimation including pairs of beam values, wherein each pair of beam values includes a beamforming angle and an energy of the beam communicated with the beamforming angle.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: September 24, 2019
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Milutin Pajovic, Toshiaki Koike Akino, Philip Orlik