Patents Assigned to NEC Corporation of America
  • Publication number: 20250021766
    Abstract: A system and a method for augmenting a dataset comprising a textual content using instruction to cause a conversational language model to create variations of text items by changing text properties such as length, style, terminology, dialect, rhyming and the like. The method may also be used with combined prompts and iteratively.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 16, 2025
    Applicant: NEC Corporation Of America
    Inventor: Tsvi LEV
  • Publication number: 20250021862
    Abstract: There is provided a computer implemented method of detecting data drift for changing a machine learning (ML) model, comprising: monitoring a target input dataset for being fed into the ML model, extracting a plurality of target candidate features from the target input dataset, applying a feature selection process for selecting a target subset of the plurality of target candidate features, accessing a historical input dataset previously determined as being suitable for being fed into the ML model, extracting a plurality of historical candidate features from the historical input dataset, applying the feature selection process for selecting a historical subset of the plurality of historical candidate features, computing a comparison between the target subset and the historical subset, and in response to the comparison meeting a requirement indicating a significant difference between the target subset and the historical subset, generating an indication for changing the ML model.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 16, 2025
    Applicant: NEC Corporation Of America
    Inventors: Yaacov HOCH, Maya COHEN MAIMON
  • Publication number: 20250021863
    Abstract: There is provided a method of generating a reduced ML model, comprising: obtaining a sample dataset, extracting global features from the sample dataset, applying a feature selection process for selecting a first subset of the global features, analyzing a classification performance of the ML model fed the first subset, to identify an error in classification by the ML model, identifying a subset of the sample dataset related to the error, extracting second features from the subset of the sample data, applying the feature selection process for selecting a second subset of the second features, and creating a reduced version of the ML model, comprising an ensemble of: a first ML model component trained by applying the first subset of global features to the sample dataset, and a second ML model component trained by applying the second subset of features to the subset of the sample data related to the error.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 16, 2025
    Applicant: NEC Corporation Of America
    Inventors: Yaacov HOCH, Maya COHEN MAIMON, Ekaterina SHELENKOVA
  • Patent number: 12198375
    Abstract: There is provided a computer implemented method of controlling movement of an object, comprising: accessing a current image of a surface relative to an object at a current location, wherein an imaging sensor is set to capture the current image depicting an overlap with a previously captured image of the surface when the object was at a previous location, registering the current image to the overlap of the previously captured image, computing the current location of the object relative to a reference location according to an analysis of the registration, and feeding the current location into a controller for controlling movement of the object.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: January 14, 2025
    Assignee: NEC Corporation Of America
    Inventors: Tsvi Lev, Hagai Har-Gil
  • Patent number: 12181695
    Abstract: There is provided a retroreflector device, comprising: an incident object made of a material transparent to electromagnetic radiation, the incident object designed to refract an incident ray hitting an incident surface to generate a refracted ray that hits a back surface, and a retroreflective surface positioned in proximity to the back surface of the incident object, wherein the retroreflective surface and the incident object are configured to refract the incident ray to generate the refracted ray for hitting the retroreflective surface at an angle of incidence below a threshold.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: December 31, 2024
    Assignee: NEC Corporation Of America
    Inventors: Tsvi Lev, Hagai Har-Gil
  • Publication number: 20240412412
    Abstract: Simultaneous location and mapping with improved accuracy by applying segmentation on images, and selecting patches having characteristics which are likely to enable reliable matching is disclosed. Geometric matching may be apply for generating sets of matching patches from different images. The camera distances and angulation may be calculated between estimated locations of patches in two or three dimensions, The location and mapping may be used for indoor and outdoor navigation, mapping, robotics, drones, localization, mapping, aerial image matching, panorama stitching and the like.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 12, 2024
    Applicant: NEC Corporation Of America
    Inventors: Tsvi LEV, Yaacov HOCH
  • Publication number: 20240414287
    Abstract: A system includes a display and a camera module configured to capture forward real video and to output the forward real video on the display. A light source may be configured to generate light, and a navigation module may receive instructions regarding locating a target destination and may cause the light to be focused into a beam directed at the target destination as the user views both the forward real video and beam on the display. When the user reaches the desired location or orientation, the target destination is visibly illuminated by the beam of light.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 12, 2024
    Applicant: NEC Corporation Of America
    Inventor: Tsvi LEV
  • Publication number: 20240398353
    Abstract: There is provided a system for monitoring temperature changes associated with risk of a medical condition of a subject, comprising: at least one processor in communication with a temperature sensor configured for sensing an ambient temperature and executing a code for: computing a trend of a plurality of temperature measurements of the ambient temperature obtained over a time interval by the temperature sensor, wherein the trend includes differentials between successive temperature measurements and preceding temperature measurements, and analyzing the trend including the differentials to determine risk of the medical condition of the subject.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 5, 2024
    Applicant: NEC Corporation Of America
    Inventor: Tsvi LEV
  • Publication number: 20240397207
    Abstract: There is provided a system for guiding a steerable laser to a target object, comprising: at least one processor executing a code for: for each image of a plurality of images captured by an image sensor and obtained in a plurality of iterations: filtering an illumination of a steerable laser overlapping a target object or in near proximity to a target object from the image, to create a filtered image, detecting the target object on the filtered image by a detector model, and generating instructions for at least one of: further directing of the steerable laser for illumination of the target object, and maintaining the illumination of the steerable on the target object.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 28, 2024
    Applicant: NEC Corporation Of America
    Inventors: Tsvi LEV, Yaacov HOCH, Hagai HAR-GIL
  • Publication number: 20240395070
    Abstract: There is provided a computer implemented method of detecting an attempt to breach security of an iris recognition system by an artificial iris, comprising: analyzing at least a portion of a limbal ring depicted in an image of an iris of an individual captured by an imaging sensor at a wavelength range within at least one of near infrared (NIR) and short wave infrared (SWIR), and detecting likelihood of an artificial iris worn by the individual according to the analysis of the at least the portion of the limbal ring.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 28, 2024
    Applicant: NEC Corporation Of America
    Inventors: Tsvi LEV, Yaacov Hoch, Hagai HAR-GIL
  • Patent number: 12155343
    Abstract: A system and associated method include a housing that includes a sensor, a transmitter, and a power source. A solar panel is configured to receive light energy from an artificial light source to generate an electrical charge. An electrical connection may convey the electrical charge to the power source to energize the sensor, and a fastener fixates the solar panel within 10 cm of the artificial light source. The solar panel may be further positioned with respect to the housing and the artificial light source. For instance, the solar panel may be positioned so as to minimally obstruct visible light from the artificial light source within an area to be illuminated. The housing may comprise part of an Internet of Things (IoT) device.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: November 26, 2024
    Assignee: NEC Corporation Of America
    Inventor: Tsvi Lev
  • Publication number: 20240378128
    Abstract: A system and a method for classifying images pertaining to computer resource usage of a user, using an ensemble of close ended questions and a neural network based language model. The method may be used to as aid to monitor and/or enforce computer usage policies in industrial organizations. government services, academy. education, and/or the like.
    Type: Application
    Filed: May 11, 2023
    Publication date: November 14, 2024
    Applicant: NEC Corporation Of America
    Inventor: Tsvi LEV
  • Publication number: 20240370498
    Abstract: A system and a method for analyzing conversation text using a flow of query prompts, an ensemble of close ended questions and a neural network based language model. The method may be used as a tutor or examination bot, for mental coherency screening, data mining, clustering groups of trainees or customers according to training needs or interests, and the likes.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 7, 2024
    Applicant: NEC Corporation Of America
    Inventors: Tsvi LEV, Or KATZ, Maya COHEN MAIMON
  • Patent number: 12137343
    Abstract: Provided herein are methods and systems for verifying a path in a monitored space, comprising transmitting a device identification (ID) of the mobile wireless device while the mobile wireless device moves through a monitored space, receiving one or more location certificates transmitted, in response to reception of the device ID, by one or more wireless transceivers deployed at a predefined location in the monitored space and having a limited transmission range, each location certificate comprising at least the device ID and a transceiver ID of the respective wireless transceiver, storing the one or more location certificates, and transmitting the one or more location certificates to one or more verification units configured to verify a path of the mobile wireless device in the monitored space estimated according to the predefined location of the one or more wireless transceivers identified by the transceiver ID extracted from the one or more location certificates.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: November 5, 2024
    Assignee: NEC Corporation Of America
    Inventor: Tsvi Lev
  • Patent number: 12118427
    Abstract: An article having an invisible infrared pattern is disclosed. The article includes at least one infrared pattern printed onto a surface. The infrared pattern includes regions of high absorption and high reflection for a plurality of wavelengths of infrared radiation ranging between 700 and 2000 nm. A coating is overlaid over the infrared pattern. The coating is made of a material and has a thickness that is penetrable by infrared radiation and that has an average opacity of at least 20 for light in the visible range.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: October 15, 2024
    Assignee: NEC Corporation Of America
    Inventor: Tsvi Lev
  • Patent number: 12113890
    Abstract: There is provided a system of cryptography for securing data on a blockchain, comprising: at least one hardware processor executing a code for: obtaining at least one encrypted data item, encrypted with a public key compliant with a homomorphic encryption mechanism, feeding the at least one encrypted data item into a computational process that computationally processes the at least one encrypted data item with computations compliant with the homomorphic encryption mechanism, and providing at least one encrypted outcome of the computational process to a smart contract for posting on a blockchain, wherein the at least one encrypted outcome is compliant with the homomorphic encryption mechanism and decrypted with a private key corresponding to the public key.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: October 8, 2024
    Assignee: NEC Corporation Of America
    Inventors: Ori Yampolsky, Tsvi Lev, Yaacov Hoch
  • Patent number: 12114084
    Abstract: There is provided a computer implemented method of computing a location of an object, comprising: accessing a wide field of view (wFOV) image captured by a wFOV image sensor located relative to an object, analyzing the wFOV image to identify a predefined feature, wherein the predefined feature indicates a low accuracy location of the object, capturing a high resolution image by a high resolution image sensor located relative to the object, the high resolution image depicting the predefined feature, and computing a high accuracy of location of the object according to an analysis of the predefined feature and according to a correlation between a location and orientation of the wFOV image sensor and the high resolution image sensor.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: October 8, 2024
    Assignee: NEC Corporation Of America
    Inventor: Yaacov Hoch
  • Publication number: 20240331444
    Abstract: There is provided a system for analyzing images for facial expression recognition, comprising: at least one short wave infrared (SWIR) illumination element that generates SWIR illumination for illumination of a face of a person, at least one SWIR sensor that captures at least one SWIR image of the face under the SWIR illumination, and a non-transitory medium storing program instructions, which, when executed by a processor, cause the processor to analyze the at least one SWIR image for recognizing a facial expression depicted by the face.
    Type: Application
    Filed: June 6, 2024
    Publication date: October 3, 2024
    Applicant: NEC Corporation Of America
    Inventors: Aaron Mark LIEBER, Tsvi LEV
  • Patent number: 12104911
    Abstract: Disclosed herein are methods and systems for painting driving markings invisible in visible light spectrum, comprising generating driving assistance markings expressing driving information relating to one or more road segments, computing instructions for painting the driving assistance markings on one or more elements of the road segment(s) using one or more paint material(s) characterized by: (1) reflecting light in a visible light spectral range deviating less than a first value from the visible light spectral range reflected by a surface of the element(s) and (2) reflecting light in an infrared spectral range deviating more than a second value from the infrared spectral range reflected by the surface of the element(s), and outputting the painting instructions for applying the one or more paint materials on the element(s) according to the instructions such that the driving assistance markings are visible in the infrared spectrum and significantly invisible in the visible spectrum.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: October 1, 2024
    Assignee: NEC Corporation Of America
    Inventor: Tsvi Lev
  • Publication number: 20240281668
    Abstract: A system and a method for classifying text from a document using an ensemble of close ended questions and a neural network based large language model, which might have been trained for different purposes. The method comprising feeding the language model with queries based on the text and the ensemble and post processing output of the language model using a knowledge representation rule based model or an additional machine language model. The method may be used as spam or phishing filter, detect sensitive contents due to various criteria, and/or the like.
    Type: Application
    Filed: February 20, 2023
    Publication date: August 22, 2024
    Applicant: NEC Corporation Of America
    Inventor: Tsvi LEV