Patents Assigned to Mitsubishi Electric Research Laboratories, Inc.
  • Publication number: 20210318424
    Abstract: A multiple input multiple output (MIMO) radar system for detecting a moving object is based on an explicit signal model. The explicit signal model accounts for waveform separation residuals by relating measurements of the virtual array to an auto-term including a Kronecker product of object-receiver signatures and transmitter-object signatures; and a cross-term including a Kronecker product of object-receiver signatures and transmitter-object residual signatures. The radar system uses a spatial MIMO object detector that is based on the explicit signal model to detect the moving object.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Pu Wang, Petros Boufounos, Hassan Mansour, Philip Orlik
  • Publication number: 20210319534
    Abstract: Systems, methods and apparatus for image processing for reconstructing a super resolution image from multispectral (MS) images. Receive image data and initialize a fused image using a panchromatic (PAN) image, and estimate a blur kernel between the PAN image and the MS images as an initialization function. Iteratively, fuse a MS image with an associated PAN image of a scene using a fusing algorithm. Each iteration includes: update the blur kernel based on a Second-Order Total Generalized Variation function to regularize a kernel shape; fuse the PAN image and MS images with the updated blur kernel based on a local Laplacian prior function to regularize the high-resolution information to obtain an estimated fused image; compute a relative error between the estimated fused image of the current iteration and a previous estimated fused image from a previous iteration, to a predetermined threshold, to stop iterations stop, to obtain a PAN-sharpened image.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Dehong Liu, Lantao Yu, Yanting Ma, Hassan Mansour, Petros Boufounos
  • Publication number: 20210319784
    Abstract: A linguistic system for transcribing an input, where the linguistic system comprises a processor configured to execute a neural network multiple times while varying weights of at least some nodes of the neural network to produce multiple transcriptions of the input. Further, determine a distribution of pairwise distances of the multiple transcriptions; determine a legitimacy of the input based on the distribution; and transcribe the input using stored weights of the nodes of the neural network when the input is determined as legitimate to produce a final transcription of the input.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 14, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Jonathan Le Roux, Tejas Jayashankar, Pierre Moulin
  • Patent number: 11145197
    Abstract: A system jointly controls vehicles according to traffic configuration of a zone of intersection of a first road and a second road. The intersection zone includes a sequencing zone and a control zone covering sections of the first and the second road in proximity to the intersection. The system groups vehicles traveling within the sequencing zone on the first and the second roads into a set of groups of the vehicles and prevents the vehicles of different groups to travel concurrently in the control zone such that the first vehicle of the following group cannot pass the last vehicle of the preceding group. The system determines motion trajectories for the vehicles of the same group traveling in the control zone on the first and the second roads to pass the intersection and transmits the motion trajectories to the corresponding vehicles.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 12, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Jianlin Guo, Fei Ye, Kyeong Jin Kim, Philip Orlik, Heejin Ahn, Stefano Di Cairano
  • Patent number: 11143821
    Abstract: An integrated grating coupler system includes a first chip having a first substrate, a first grating structure formed by first grating curves arranged on the first substrate and a cladding layer formed to cover the first grating structure, wherein the first chip include a first waveguide configured to receive a light beam from a first end via the first waveguide and transmit the light beam through a second end, a second chip having a second substrate and a second grating structure formed by second grating curves arranged on the second substrate, wherein the second chip is configured to receive the light beam from the second end of the first chip and transmit the light beam from an end of the second chip, and a common block configured to mount the first chip and second chip via a first submount and a second submount respectively, wherein the first and second submounts are arranged such that the light beam from the second end of the first chip is received at a top of the second chip.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 12, 2021
    Assignees: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Jonathan Klamkin
  • Publication number: 20210312395
    Abstract: Systems and methods for a computer system for detecting anomalies in incoming communication from a sender to a receiver. Accepting a relationship structure defining a trained association model between the sender and the receiver, and the incoming communication. Accessing neural networks trained to detect anomalies in the incoming communication and classify the anomalies by type, subject to correspondence between content of the incoming communication and the trained association model between the sender and the receiver. Compute an updated association model, based on sender and the receivers organizational indications using the content of the incoming communication. Execute the neural networks by submitting the incoming communication and the updated association model to produce a result of anomaly detection and anomaly classification type.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 7, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Bret Harsham, Chiori Hori
  • Publication number: 20210311089
    Abstract: A wind flow sensing system for determining a turbulence of wind flow at a set of different altitudes above a terrain is provided. The wind flow sensing system comprises an input interface configured to receive a set of measurements of radial velocities at line-of-site points above the terrain for each of the altitudes for a set of time steps, and a processor configured to estimate velocity fields for each of the altitudes based on data assimilation of the velocity fields, estimate unbiased horizontal velocities at each of the altitudes and for each time step, determine an average of the unbiased horizontal velocities for a period of time including the set of time steps, and determine, at each of the altitudes, a turbulence based on the unbiased horizontal velocities for each time step and the average of the unbiased horizontal velocity.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 7, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventor: Saleh Nabi
  • Publication number: 20210311196
    Abstract: A wind flow sensing system for determining wind flow at a set of different altitudes above a terrain is provided, The wind flow sensing system comprises an input interface configured to receive a set of measurements of radial velocities at line-of-site points above the terrain for each of the altitudes, and a processor configured to estimate velocity fields for each of the altitudes based on data assimilation of the velocity fields above an approximation of the shape of the terrain with a set of one or multiple convex shapes to fit the measurements of radial velocities and estimate horizontal velocities at each of the altitudes as a horizontal projection of the corresponding radial velocities corrected with corresponding horizontal derivatives of vertical velocities of the estimated velocity fields. The wind flow sensing system further comprises an output interface configured to render the estimated horizontal velocities at each of the altitudes.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 7, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventor: Saleh Nabi
  • Publication number: 20210313851
    Abstract: A motor comprising a shaft, an array of stator assemblies rigidly attached to the shaft, each stator assembly includes a stator yoke having a toroid shape fixed around the shaft and having a number of slots at radial and axis directional faces with windings within the slots of the stator yoke, and a rotor assembly rotatively attached to the shaft to enclose the array of stator assemblies, the rotor assembly has a rotor drum with sections, each section embraces one stator assembly, each section has two axial-flux permanent magnet arrays attached on axial-directional inner surfaces of the section and has one radial-flux permanent magnet array attached on a radial-directional inner surface of the section furthest from the shaft, wherein the axial-flux and the radial-flux permanent magnet arrays with the number of pole pairs equals the number of the stator slots plus or minus the number of stator winding pole pair.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 7, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Lei Zhou, Bingnan Wang, Chungwei Lin, Dehong Liu, Yebin Wang, Koon Hoo Teo
  • Publication number: 20210302974
    Abstract: A control system for controlling a motion of a vehicle to a target driving goal uses a decision-maker configured to determine a sequence of intermediate goals leading to the next target goal by optimizing the motion of the vehicle subject to a first model and tightened driving constraints formed by tightening driving constraints by a safety margin, and uses a motion planner configured to determine a motion trajectory of the vehicle tracking the sequence of intermediate goals by optimizing the motion of the vehicle subject to the second model. The driving constraints include mixed logical inequalities of temporal logic formulae specified by traffic rules to define an area where the temporal logic formulae are satisfied, while the tightened driving constraints shrink the area by the safety margin, which is a function of a difference between the second model and the first model approximating the second model.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Stefano Di Cairano, Rien Quirynen, Yunus Emre Sahin
  • Publication number: 20210306910
    Abstract: Systems and methods for scheduling data traffic in a wireless time sensitive network (TSN). A computer configured to synchronize clocks of all nodes with a common clock in the TSN. Obtain data traffic information for the TSN using a network scheduler to establish routing paths. Determine routing paths using the obtained data traffic information and stored routing information via a memory. Compute a link communication delay for each link of the one or more relay nodes connecting a source node to a destination node of the TSN for each TSN stream using a network scheduler. Determine interfering links for each wireless link using the network scheduler. Determining a scheduling period using the network scheduler. Determine optimal scheduling using an optimal scheduling module. Generate the gate control list for each egress port of the wired node and the wireless transmitter of the TSN, and begin transmission of the data.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Jianlin Guo, Kyeong Jin Kim, Philip Orlik
  • Publication number: 20210304306
    Abstract: Systems and methods for allocating energy including distributing and receiving energy using a mobile energy storage (MEES) system at locations of a power supplier in an energy market system by a user. Determine allocating amounts of energy for the MEES system and for each time interval for all time intervals for an upcoming operating time period based on a set of uncertain parameters using an optimization model. Base on calculating an objective function using uncertain parameters. Update the objective function using constraints. While optimizing the objective function for a value hierarchy associated with energy and reserve bidding scenarios for the user and delivery scheduling for the MEES system based upon the stored user risk preferences. Control scheduling of the MEES system between the locations of the power supplier, according to allocating of the amount of the electrical energy for the MEES system at the locations of the power supplier.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Hongbo Sun, Dongliang Xiao
  • Publication number: 20210299795
    Abstract: A system for generating a G-code for controlling an operation of a laser-cutting machine to cut parts from a sheet of material, upon receiving cutting data specifying a cutting order of parts and a cutting order of edges of each part, tests the parts for potential distortions and generates a G-code to avoid the potential distortion. For testing a current part, the system detects a potential distortion when the final edge of the current part is adjacent to an edge of a previously cut part scheduled for cutting before the current part according to the cutting order of parts. The system modifies the cutting order to select the modified cutting order for which the final edge is not adjacent to any edge of any previously cut part.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: William Vetterling, Jay Thornton, Ankush Chakrabarty, Abraham Goldsmith
  • Publication number: 20210305373
    Abstract: Devices and methods of a field effect transistor device that include a source, a gate and a drain. The transistor includes a semiconductor region position is under the source, the gate and the drain. Such that the semiconductor region can include a gallium nitride (GaN) layer and an III Nitride (III-N) layer. Wherein the GaN layer includes a band gap, and the III-N layer includes a band gap. Such that the III-N layer band gap is higher than the GaN layer band gap. A sub-region of the semiconductor region is located underneath the gate and is doped with Mg ions at selective locations in the sub-region.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Kon Hoo Teo, Nadim Chowdhury
  • Publication number: 20210302992
    Abstract: A control system for controlling a motion of a vehicle is disclosed, where the control system comprises an input interface to accept measurements of the environment and an image processor to generate an extended bird's eye view (BEV) image from the measurements. The BEV image has a set of pixels carrying information about objects in the environment, and a pixel in the set of pixels is associated with a time sequence of future positions of the pixel in subsequent time steps representing a prediction of a future motion of an object. The control system further comprises a motion planner to produce a motion trajectory of the vehicle using the extended BEV image. The control system further comprises a controller to control an actuator of the vehicle based on the produced motion trajectory.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Siheng Chen, Pengxiang Wu
  • Publication number: 20210305416
    Abstract: Devices and methods of a transistor device including a source and a drain, the source and drain are at a horizontal plane at a location along a vertical direction. A gate, that is at a higher horizontal plane along the vertical direction then the source and drain horizontal plane. A first region under the source and drain horizontal plane, includes a first three Nitride (III-N) layer, a second III-N layer over the first III-N layer. A second region under the gate, includes a first III-N layer, a second III-N layer over the first III-N layer, and a third III-N layer over the second III-N layer. The third III-N layer at selective locations extends through the second III-N layer and into a portion of the first III-N layer along a width of the transistor. The third III-N layer is doped P-type, and the first and second III-N layers are unintentionally doped.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Koon Hoo Teo, Nadim Chowdhury
  • Publication number: 20210305374
    Abstract: Semiconductor devices including a first region having a first three Nitride (III-N) layer and a second III-N layer, the second III-N layer is over the first III-N. The second III-N layer has spontaneous polarization less than the first III-N layer, such that a two-dimensional hole gas (2-DHG) will be formed at a junction of the first III-N layer to the second III-N layer. An Anode forms an ohmic contact to the 2-DHG. A second region includes a third III-N layer and a forth III-N layer, such that the fourth III-N layer is over the third III-N. The forth III-N layer has spontaneous polarization greater than the third III-N layer, such that two-dimensional electron gas (2-DEG) will be formed at a junction of the third III-N layer to the forth III-N layer. A Cathode forms an ohmic contact to the 2-DEG. The first and second regions are connected at an interface.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Koon Hoo Teo, Nadim Chowdhury
  • Publication number: 20210305948
    Abstract: An all-digital transmitter (ADT) is provided. The ADS includes a baseband interface configured to store and transmit an (baseband) input signal at a corresponding frequency band, a polyphase finite impulse response filter configured to receive and convert the baseband input signal into different phases, a digital upconverter configured to upconvert each of the different phase baseband input signal to a predetermined carrier frequency in a digital domain, a set of multi-core 2-dimensional network-resonant digital plane wave beamfilters, wherein each of the multi-core 2D NR-DPW beamfilters is configured to transmit the upconverted baseband input signal by a target angle, a multi-core delta-sigma modulator configured to encode the upconverted input signal into pulsating signals, and a serializer configured to serialize the encoded pulsating signals into a RF bitstream.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 30, 2021
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Rui Ma, Sravan Kumar Pulipati
  • Patent number: 11132453
    Abstract: A communication system including a receiver to receive training data. An input interface to receive input data coupled to a hardware processor and a memory. The hardware processor is configured to initialize the privacy module using the training data. Generate a trained privacy module, by iteratively optimizing an objective function. Wherein for each iteration the objective function is computed by a combination of a distortion of the useful attributes in the transformed data and of a mutual information between the sensitive attributes and the transformed data. Such that the mutual information is estimated by the auxiliary module that maximizes a conditional likelihood of the sensitive attributes given the transformed data. Receive the input data via the input interface. Apply the trained privacy module on the input data to produce an application specific transformed data. A transmitter to transmit the application specific transformed data over a communication channel.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: September 28, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Ye Wang, Prakash Ishwar, Ardhendu Tripathy
  • Patent number: 11133011
    Abstract: A speech recognition system includes a plurality of microphones to receive acoustic signals including speech signals, an input interface to generate multichannel inputs from the acoustic signals, one or more storages to store a multichannel speech recognition network, wherein the multichannel speech recognition network comprises mask estimation networks to generate time-frequency masks from the multichannel inputs, a beamformer network trained to select a reference channel input from the multichannel inputs using the time-frequency masks and generate an enhanced speech dataset based on the reference channel input and an encoder-decoder network trained to transform the enhanced speech dataset into a text. The system further includes one or more processors, using the multichannel speech recognition network in association with the one or more storages, to generate the text from the multichannel inputs, and an output interface to render the text.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 28, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Shinji Watanabe, Tsubasa Ochiai, Takaaki Hori, John R Hershey