Patents Assigned to NEC Corporation
  • Patent number: 11991694
    Abstract: A communication system is described in which a base station transmits, to a UE (user equipment), via a data radio bearer (DRB), a downlink data packet that includes information identifying a data flow. The downlink data packet is transmitted prior to commencement of transmission, via that DRB, of data packets comprising any downlink user-plane data associated with the identified data flow.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Yuhua Chen, Neeraj Gupta, Jagdeep Ahluwalia Singh
  • Patent number: 11991165
    Abstract: The present disclosure relates to authentication methods supported by the User Equipment (UE) to the core network and authentication method (selected by the core network) to the UE. These can be used for negotiating any primary or secondary (or any) authentication method and are applicable when multiple authentication methods are supported at the UE and the network (authentication server). Further, the present disclosure also offers security solution to prevent modification or tampering of the parameters in the mechanisms in order to prevent attacks such as bidding-down, Denial of Service (DoS) and Man-In-The-Middle (MITM).
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Anand Raghawa Prasad, Sivakamy Lakshminarayanan, Sheeba Backia Mary Baskaran, Sivabalan Arumugam, Hironori Ito, Takahito Yoshizawa
  • Patent number: 11991654
    Abstract: In order to provide a communication system and the like which are capable of updating a correction value of a time synchronization packet, and to which a traffic bonding scheme is applied, a set of primary devices of the communication system determines presence or absence of communication in a first transmission path, adds an actual measurement value of a first delay amount to an information value when a determination result according to the determination is that the communication is present, or adds, to the information value, a design value of a second delay amount being the delay amount inside the wireless transmission device and the wireless reception device when the determination result is that the communication is absent.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Satoshi Sonobe
  • Patent number: 11991538
    Abstract: A wireless communication failure analysis device comprises: an estimator which, based on a measured communication state between an access point and a communication terminal, and an estimation of an obstacle affecting the communication state, estimates a movement locus of the communication terminal; a corrector which corrects the movement locus based on restriction information indicating a movement restriction of the communication terminal; a generator which generates the estimation result based on a corrected movement locus and the measurement result; and a controller which generates the restriction information so as to gradually strengthen the movement restriction until the movement restriction satisfies a condition, and controls the estimator and generator such that the estimation of the movement locus, the correction of the movement locus, and the generation of the estimation result repeatedly.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Masaya Fujiwaka
  • Patent number: 11990726
    Abstract: The object is to provide an optical repeater, a manufacturing method of an optical repeater, and a relay method of an optical signal that can achieve a redundant configuration for a failure of a light source outputting an excitation light with a simple configuration. Light sources output lights. The optical amplification units amplify optical signals using excitation lights. An optical distribution unit branches the lights output from the light sources into two branched lights and distributes the branched lights in such a manner that each of the optical amplification units receives the branched light branched from the lights from two different light sources as the excitation light.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Satoshi Mikami, Eduardo Mateo Rodriguez
  • Patent number: 11987236
    Abstract: A method provided for 3D object localization predicts pairs of 2D bounding boxes. Each pair corresponds to a detected object in each of the two consecutive input monocular images. The method generates, for each detected object, a relative motion estimation specifying a relative motion between the two images. The method constructs an object cost volume by aggregating temporal features from the two images using the pairs of 2D bounding boxes and the relative motion estimation to predict a range of object depth candidates and a confidence score for each object depth candidate and an object depth from the object depth candidates. The method updates the relative motion estimation based on the object cost volume and the object depth to provide a refined object motion and a refined object depth. The method reconstructs a 3D bounding box for each detected object based on the refined object motion and refined object depth.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: May 21, 2024
    Assignee: NEC Corporation
    Inventors: Pan Ji, Buyu Liu, Bingbing Zhuang, Manmohan Chandraker, Xiangyu Chen
  • Patent number: 11991553
    Abstract: An object is to provide a control device which can control, in consideration of a traffic characteristic of an application operating between an application server and a communication terminal, traffic or a data amount transferred on a core network. A control device (10) according to the present example embodiment includes: a communication unit (12) configured to receive, via a service control device (20) which authenticates an application server (30) providing a service for a communication terminal (50), information relating to a transmittable data amount determined in the application server (30); and a control unit (11) configured to execute, by using the information relating to the transmittable data amount, traffic control on data transmitted from the communication terminal (50).
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Hajime Zembutsu, Toshiyuki Tamura, Naoaki Suzuki
  • Patent number: 11991178
    Abstract: In a secret computation system, each of the three or more secret computation servers is configured to transmit, to the auxiliary server, carry computation information for computing a carry indicating whether or not digit carry occurs when a share of arithmetic operation is added as a binary number. The auxiliary server is configured to compute the carry based on the carry computation information received and compute an adjustment value used for computing the share of the arithmetic operation from a share of logical operation by using the computed carry. The auxiliary server distributes the computed adjustment value to the three or more secret computation servers. Each of the three or more secret computation servers is configured to convert the share of the logical operation to the share of the arithmetic operation by using a distributed value of the adjustment value.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Hikaru Tsuchida, Toshinori Araki, Kazuma Ohara
  • Patent number: 11991518
    Abstract: An apparatus is provided. The apparatus includes a memory storing one or more instructions and a processor. The processor execute the one or more instructions to: receive update information from an external apparatus, the update information corresponding to a network communication; obtain a Subscription Concealed Identifier (SUCI) based on the update information; and transmit the SUCI to the external apparatus.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Sander De Kievit, Anand Raghawa Prasad, Sheeba Backia Mary Baskaran
  • Patent number: 11991706
    Abstract: Embodiments of the present disclosure relate to the communication processes in a wireless communication system based on short TTIs. According to one embodiment of the present disclosure, there provide a method for communication by a base station. The method comprise: receiving, from a user equipment, an uplink demodulation reference signal, DMRS, in an uplink transmission time interval, TTI, of an uplink subframe, which supports two or more uplink TTIs. At least one uplink TTI supported by the uplink subframe is configured to only transmit uplink control information and/or uplink data without any uplink DMRS. In the other aspects of the present disclosure, there also provides methods for communication by a user equipment and corresponding apparatuses.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Yukai Gao, Chuangxin Jiang, Gang Wang
  • Patent number: 11986301
    Abstract: An information processing device 1X mainly includes an environmental information acquisition means 15X and a mental state estimation means 16X. The environmental information acquisition means 15X is configured to acquire environmental information “Ie” which is information on environment. The mental state estimation means 16X is configured to estimate, based on the environmental information Ie, a mental state of a group present in the environment indicated by the environmental information Ie.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Terumi Umematsu, Masanori Tsujikawa
  • Patent number: 11991375
    Abstract: A moving image encoding device includes: a parameter correction unit that corrects an encoding parameter for encoding a moving image; a block arrangement determination unit that determines block information used for encoding the moving image; and an encoding unit that encodes the moving image, the block arrangement determination unit acquires the corrected encoding parameter, and determines and outputs the block information, and the encoding unit encodes the moving image by using the encoding parameter before correction and the block information output by the block arrangement determination unit.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Hiroaki Igarashi
  • Patent number: 11989281
    Abstract: A white list generation apparatus (2000) acquires a generation request (70). The generation request (70) includes hardware configuration information (74) indicating hardware performance of a target virtual machine (20) and software configuration information (72) indicating software to be installed on the target virtual machine (20). The white list generation apparatus (2000) generates or determines a machine (90) configured with hardware with performance higher than hardware performance indicated in the hardware configuration information (74). The white list generation apparatus (2000) further installs software indicated in the software configuration information (72) onto the machine (90). Then, the white list generation apparatus (2000) generates a white list (60), based on a content of a storage apparatus in the machine (90) after completion of the installation.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Eiji Takahashi
  • Patent number: 11989013
    Abstract: An abnormality detection apparatus (200) includes storage means (210) for storing a learned self-encoder (211) including predetermined number of two or more of elements as input layers, extraction means (220) for extracting a target data group of a predetermined period including data pieces from time series data measured by one or more sensors, the number of the data pieces being the predetermined number, conversion means (230) for converting the target data group into multi-dimensional vector data including the predetermined number of elements, identifying means (240) for identifying a time period in which there may be a cause of an abnormality from the predetermined period based on a difference between output vector data having the predetermined number of elements obtained by inputting the multi-dimensional vector data to the self-encoder (211) and the multi-dimensional vector data, and output means (250) for outputting abnormality detection information including the identified time period.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Kosuke Yoshida
  • Patent number: 11989925
    Abstract: An image matching apparatus matching a first image against a second image includes an acquiring unit, a generating unit, and a determining unit. The acquiring unit acquires a frequency feature of the first image and a frequency feature of the second image. The generating unit synthesizes the frequency feature of the first image and the frequency feature of the second image, and generates a quantized synthesized frequency feature in which a value of an element is represented by a binary value or a ternary value. The determining unit calculates a score indicating a degree to which the quantized synthesized frequency feature is a square wave having a single period, and matches the first image against the second image based on the score.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Toru Takahashi, Rui Ishiyama, Kengo Makino, Yuta Kudo
  • Patent number: 11989975
    Abstract: The disclosure is inputting a first image captured an image of an authentication target; inputting a second image captured an image of a right eye or a left eye of the target; determining whether the second image is of a left eye or a right eye of the target based on information including the first image, and outputting a determination result as left/right information in association with the second image; detecting an overlap between a region including the second image and a predetermined region in the first image; calculating a verification score by comparing characteristic information that are related to the left/right information with iris characteristic information calculated from the second image, and calculating a first weighted verification score obtained by weighting the verification score with a detection result; and authenticating a target in the second image based on the first weighted verification score, and outputting an authentication result.
    Type: Grant
    Filed: July 3, 2023
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino, Keiichi Chono, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Patent number: 11989290
    Abstract: An action plan estimation apparatus 10 includes: an information acquisition unit 11 that acquires an operation log indicating an operation and a context information indicating a status of the operation for each operation performed by a software on a computer system, a group generation unit 12 that divides each of the operation logs into groups based on a similarity between the context information, an action plan estimation unit 13 that executes abduction for each group by applying knowledge data indicating a relationship between an action plan executed by the software and an operation of the software to the operation log included in the group, and uses the result of the abduction to estimate an action plan to reach a preset target state, that is executed by the software from which the operation log is acquired, based on the operation indicated by the operation log included in the group.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Itaru Hosomi
  • Patent number: 11989639
    Abstract: An inferential device, including a quantization part that quantizes a result of a convolutional operation in a convolutional neural network using input data and weights; a convolutional operation part that performs a convolutional operation using the quantized operation result as input data; and an input data conversion part that converts the input data to a first layer to enable the convolutional operation part to process both the input data to the first layer and the input data that is quantized by the quantization part in a same way.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Seiya Shibata
  • Patent number: 11989924
    Abstract: A system includes: a unit that input a series image sequence; a unit that selects a reference image; a unit that selects a proximity image; and an inference unit that recognizes the reference image and the proximity image by performing inference processing, including convolution processing and activation function processing, on the reference image and the proximity image. The inference unit generates results of performing the convolution processing and the activation function processing on the proximity image from the results of the convolution processing and the activation function processing performed on the reference image, and the results of the product of the results of the convolution processing performed on a difference image, which is an image of the difference between the reference image and the proximity image, and a derivative value of the results of the convolution processing and the activation function processing performed on the reference image.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Shigeaki Namiki
  • Patent number: 11989859
    Abstract: An image generation device includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: select a second face image from a plurality of face images stored in advance based on directions of faces included in the plurality of face images and a direction of a face included in an input first face image; deform the second face image based on feature points of the face included in the first face image and feature points of a face included in the second face image such that a face region of the second face image matches a face region of the first face image; and generate a third face image in which the face region of the first face image is synthesized with a region other than the face region of the deformed second face image.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventor: Akihiro Hayasaka