Patents Assigned to NEC Corporation
  • OPTIMIZATION APPARATUS, OPTIMIZATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING OPTIMIZATION PROGRAM
    Publication number: 20240135394
    Abstract: An optimization apparatus includes: a selection unit that selects, as a correction value, an element having a magnitude equal to or smaller than a predetermined value from among convex hulls of a policy set; an acquisition unit that acquires a result of execution of a second policy executed in a second round, the second round being a round a predetermined round before a first round for executing a first policy that is determined from among the policy set; a calculation unit that calculates an estimated value of a loss vector in the execution of the policy based on the result of the execution and the correction value selected in the second round; an update unit that updates a first probability distribution based on the estimated value; and a determination unit that determines a policy for a next round based on the updated first probability distribution.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND RECORDING MEDIUM
    Publication number: 20240137508
    Abstract: To provide a technique which makes it possible to suitably estimate an important region and a non-important region in an image, an information processing apparatus (1) includes: an obtaining means (10) for obtaining input data which includes at least one of image data and point cloud data; an estimating means (11) for estimating levels of importance with respect to a respective plurality of regions which are included in a frame indicated by the input data; a replacing means (12) for generating replaced data by replacing at least one of the plurality of regions, which are included in the input data, with alternative data in accordance with the levels of importance; an evaluating means (13) for deriving an evaluation value by referring to the replaced data; and a training means (14) for training the estimating means with reference to the evaluation value.
    Type: Application
    Filed: February 24, 2021
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Hayato ITSUMI, Koichi NIHEI, Taranori IWAI, Yusuke SHINOHARA, Florian BEYE, Charvi VITTHAL
  • MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PROGRAM
    Publication number: 20240135713
    Abstract: Provided is a novel technology with which the occurrence of an abnormal situation can be detected and the abnormal situation can be appropriately ascertained. A monitoring device (1) comprises: a voice acquisition unit (2) that acquires prescribed speech spoken by a person due to the occurrence of an abnormal situation in a monitoring target area; a person identification unit (3) that identifies the person who spoke the prescribed speech, on the basis of a feature obtained from the prescribed speech; an analysis unit (4) that searches for the identified person in the images from a camera which images the monitoring target area, and that analyzes an expression or action of the person; and an abnormal situation evaluation unit (5) that evaluates the abnormal situation in the monitoring target area, on the basis of the analysis results.
    Type: Application
    Filed: August 25, 2021
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Yoshihiro Kajiki
  • PATH SWITCHING DEVICE, OPTICAL TRANSMISSION SYSTEM, AND PATH SWITCHING METHOD
    Publication number: 20240137673
    Abstract: Provided is a path switching device including a wavelength separator that wavelength-separates signal light and monitoring light having a wavelength different from a wavelength of the signal light, a signal light path switcher that switches a path of the signal light, and a monitoring light path controller that controls a path of the monitoring light, wherein the monitoring light path controller sets a path of the monitoring light to one path regardless of a switching state of a path of the signal light.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Akira MASUDA
  • COMMUNICATION TERMINAL, MONITORING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
    Publication number: 20240137744
    Abstract: It is intended to provide a communication terminal capable of preventing an operator of the communication terminal from recognizing processing running in the communication terminal. A communication terminal (10) according to the present disclosure includes a communication unit (11) that transmits an emergency message and a control unit (12) that disables a user's operation of the communication terminal or a function executed by a user's operation of the communication terminal after the emergency message is transmitted, and the communication unit (11) starts data communication with a monitoring terminal and transmits data to the monitoring terminal while the function is disabled.
    Type: Application
    Filed: March 30, 2021
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Motoharu Ohtake, Kosel Kobayashi, Hiroaki Aminaka, Shinji Miyazaki, Tomoaki Nakanishi
  • RADIO ACCESS NETWORK NODE, RADIO TERMINAL, AND METHODS AND NON-TRANSITORY COMPUTER-READABLE MEDIA THEREFOR
    Publication number: 20240137942
    Abstract: A second RAN node (2) associated with a second RAT sends a radio resource configuration of the second RAT to a radio terminal (3) via a first RAN node (1) associated with a first RAT. The radio resource configuration explicitly or implicitly indicates at least one numerology that is included in multiple numerologies supported by the second RAT and is different from a reference numerology. It is thus, for example, possible to allow a radio terminal to be configured with a numerology of a cell served by a secondary gNB or a target gNB in Inter-RAT Dual Connectivity between E-UTRA and NR and in a handover from E-UTRA to NR.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Shdafuku Hayashi
  • OPTICAL TRANSMISSION PATH MONITORING DEVICE AND OPTICAL TRANSMISSION PATH MONITORING METHOD
    Publication number: 20240137117
    Abstract: An optical transmission path monitoring device according to the present disclosure includes a monitoring light generation circuit configured to generate first monitoring light, and send the first monitoring light to an optical transmission path, a time synchronization circuit configured to perform time synchronization with an opposite monitoring device connected to an opposite side of the optical transmission path, a light reception circuit configured to receive first returned light acquired by turning back the first monitoring light in a turnback circuit inserted in the optical transmission path, and second returned light acquired by multiple turning back, in the turnback circuit, second monitoring light sent by the opposite monitoring device, and a time control circuit configured to control a sending time of the first monitoring light by use of positional information of the turnback circuit.
    Type: Application
    Filed: October 12, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Takehiro NAKANO
  • IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
    Publication number: 20240135539
    Abstract: The image processing device 1X includes an acquisition means 30X and a lesion detection means 34X. The acquisition means 30X acquires an endoscopic image obtained by photographing an examination target by a photographing unit provided in an endoscope. The lesion detection means 34X detects a lesion based on a selection model which is selected from a first model and a second model, the first model being configured to make an inference regarding a lesion of the examination target based on a predetermined number of endoscopic images, the second model being configured to make an inference regarding a lesion of the examination target based on a variable number of endoscopic images. Besides, the lesion detection means 34X changes a parameter to be used for detection of the lesion based on a non-selection model that is the first model or the second model other than the selection model.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Kazuhiro WATANABE, Yuji IWADATE, Masahiro SAIKOU, Akinori EBIHARA, Taiki MIYAGAWA
  • QUANTUM DEVICE
    Publication number: 20240136274
    Abstract: A quantum device capable of effectively cooling a quantum chip and an area (e.g., a space) therearound is provided. A quantum device includes a quantum chip and an interposer on which the quantum chip is located. The interposer includes an interposer substrate and an interposer wiring layer. The interposer wiring layer is disposed on a surface of the interposer substrate on a side on which the quantum chip is located. The interposer wiring layer includes, in at least a part thereof, a superconducting material layer formed of a superconducting material and a non-superconducting material layer formed of a non-superconducting material.
    Type: Application
    Filed: July 26, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Katsumi KIKUCHI, Akira MIYATA, Suguru WATANABE, Takanori NISHI, Hideyuki SATOU, Kenji NANBA, Ayami YAMAGUCHI
  • WALKING INDEX CALCULATION DEVICE, WALKING INDEX CALCULATION SYSTEM, WALKING INDEX CALCULATION METHOD, AND PROGRAM RECORDING MEDIUM
    Publication number: 20240138250
    Abstract: A walking index calculation device that includes a waveform generation unit configured to generate a walking waveform by using sensor data regarding motion of a foot acquired by a sensor installed in footwear; a detection unit configured to detect a timing at which a clearance of a toe is minimized from the walking waveform; and a calculation unit configured to calculate a minimum value of the clearance of the toe by using a walking parameter at the timing at which the clearance of the toe is minimized.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Chenhui HUANG, Fumiyuki Nihey, Kenichiro Fukushi, Zhenwei Wang
  • MONITORING SYSTEM, MONITORING APPARATUS, AND MONITORING METHOD
    Publication number: 20240135562
    Abstract: Three-dimensional data acquisition means acquires three-dimensional data output from a three-dimensional ranging sensor for scanning a paved surface for aircraft using laser light. Extraction means extracts, from the three-dimensional data, real image data about a real image present on the paved surface and mirage image data about a mirage image corresponding to the real image. Foreign object detection means detects a foreign object left on the paved surface using the real image data and the mirage image data.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Tsubasa NAKAMURA
  • PROCEDURE TO UPDATE THE PARAMETERS RELATED TO UNIFIED ACCESS CONTROL
    Publication number: 20240137756
    Abstract: This disclosure defines a procedure to security protection to sensitive information in AS layer during AS connection establishment procedure. More specifically the disclosure provides a procedure for privacy protection of user subscription and location related information at AS layer during AS connection establishment procedure.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Kundan TIWARI, Toshiyuki TAMURA
  • CAMERA CALIBRATION APPARATUS, CAMERA CALIBRATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
    Publication number: 20240135584
    Abstract: In a camera calibration apparatus, a vanishing point calculation uni calculates a “first vanishing point” in the horizontal direction based on a first coordinate pair and a second coordinate pair acquired by an acquisition unit and calculates a “second vanishing point” in the vertical direction based on a third coordinate pair and a fourth coordinate pair acquired by the acquisition unit. The camera parameter calculation unit calculates a camera parameter of a camera based on the first vanishing point and the second vanishing point calculated by the vanishing point calculation unit. Each of the first coordinate pair and the second coordinate pair is related to a part of a human horizontally distributed in a world coordinate space. Each of the third coordinate pair and the fourth coordinate pair is related to a part of a human vertically distributed in the world coordinate space.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 25, 2024
    Applicant: NEC CORPORATION
    Inventor: Gaku NAKANO
  • ENDOSCOPIC EXAMINATION SUPPORT APPARATUS, ENDOSCOPIC EXAMINATION SUPPORT METHOD, AND RECORDING MEDIUM
    Publication number: 20240135642
    Abstract: In the endoscopic examination support apparatus, the three-dimensional model generation means generates a three-dimensional model of a luminal organ in which an endoscope camera is placed, based on endoscopic images obtained by imaging an interior of the luminal organ with the endoscope camera. The unobserved area detection means detects an area estimated not to be observed by the endoscope camera, as an unobserved area, based on the three-dimensional model. The display image generation means generates a display image including at least one of information indicating a position of the unobserved area in the endoscopic image, and information indicating a direction of the unobserved area outside the endoscopic image. The endoscopic examination support apparatus may be used to support user's decision making.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Hiroyasu SAIGA, Tatsu KIMURA
  • CONGESTION DEGREE DETERMINATION APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
    Publication number: 20240135716
    Abstract: A congestion degree determination apparatus (2000) acquires a captured image (50) generated by an in-vehicle camera that captures an inside of a target vehicle. The congestion degree determination apparatus (2000) determines, for each of persons (30) present in the target vehicle, an area (20) in which the person (30) is positioned out of a plurality of areas (20) in the target vehicle using the captured image (50). The congestion degree determination apparatus (2000) determines the congestion degree of the target vehicle using the number of the persons (30) positioned in each of two or more of the areas (20).
    Type: Application
    Filed: June 16, 2021
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Daichi SATO, Atsushi KITAURA, Kenichi ABE, Xiaosu DIAO, Daisuke KAWASAKI, Kaori YAMANE
  • OBJECT FEATURE EXTRACTION DEVICE, OBJECT FEATURE EXTRACTION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
    Publication number: 20240135552
    Abstract: According to an example embodiment, an object feature extraction device includes a video acquisition means for acquiring a video and generating the acquired video as an image sequence, an object detection means for detecting an object from the generated image and generating a detection result, an object tracking means for tracking the object based on the generated image and the detection result and generating a tracking result, an image storage means for storing the image, a detection result storage means for storing the detection result, a tracking result storage means for storing the tracking result, an object selection means for calculating, based on the detection result and the tracking result, a quality index for predicting the quality of a feature of the object detected at an extraction time, selecting the object to be subjected to feature extraction, and generating object selection information.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Ryoma OAMI
  • Base station, radio terminal, and methods therefor
    Patent number: 11968653
    Abstract: A base station (1) transmits, to a radio terminal (2), downlink control information including a first field for indicating frequency domain resources and a second field for indicating time domain resources allocated to the radio terminal (2). The base station (1) reduces the size of the first field as it increases the size of the second field. This can, for example, contribute to improving flexibility in time domain resource assignment without increasing the size of the downlink control information (e.g., scheduling DCI) that indicates radio resources allocated to the radio terminal.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 23, 2024
    Assignee: NEC CORPORATION
    Inventor: Takahiro Sasaki
  • Information processing apparatus, control method, and program
    Patent number: 11966435
    Abstract: An information processing apparatus (2000) displays, on a display apparatus (60), a first display (30) that represents a partial image (14) where an object contained therein was not recognized as a product. The information processing apparatus (2000) receives input for selecting one or more first displays (30). The information processing apparatus (2000), upon receiving a predetermined input from a user, ends receiving selection of a first display (30). The information processing apparatus (2000) stores, in a storage apparatus (120), product identification information input to a product information input area (54) and feature information based on a partial image(s) (14) corresponding to a selected first display(s) in association with each other.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 23, 2024
    Assignees: NEC CORPORATION, NEC Solution Innovators, Ltd.
    Inventors: Yaeko Yonezawa, Akiko Kubo, Hiroki Iiduka
  • Information processing apparatus, information processing method, and storage medium
    Patent number: 11966931
    Abstract: Provided are an information processing apparatus, an information processing method, and a storage medium configured such that a mobile information device is detachable from a support stand having a display unit and the display unit of the support stand can be effectively used even when the mobile information device is detached from the support stand. The information processing apparatus includes: a mobile information device; a support stand that has a display unit and supports the mobile information device in a detachable manner; and a display control unit that switches information to be displayed on the display unit from first information to second information when the mobile information device is detached from the support stand.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: April 23, 2024
    Assignee: NEC CORPORATION
    Inventor: Keiji Hasegawa
  • Data extraction system, data extraction method, registration apparatus, and program
    Patent number: 11968300
    Abstract: A data extraction system includes a registration apparatus, a data storage apparatus, and a query apparatus. The registration apparatus generates registration data including first information obtained by encrypting secret information, which is information that a user wishes to keep secret, by using a secret key and second information obtained by encrypting the secret key by using at least biological information of the user. The data storage apparatus holds the registration data. The query apparatus acquires the registration data by generating a query for acquiring the registration data from the data storage apparatus, extracts the secret key from the registration data by using biological information of the user, and extracts the secret information from the registration data by using the extracted secret key.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: April 23, 2024
    Assignee: NEC CORPORATION
    Inventors: Toshiyuki Isshiki, Haruna Higo, Kengo Mori