Patents Assigned to NEC Corporation
  • Patent number: 11017507
    Abstract: An image processing device which is capable of accurately detects and corrects areas affected by clouds even if multiple types or layers of clouds present in images, is disclosed. The device includes: a cloud spectrum selection unit for selecting at least one spectrum for each of pixels from spectra of one or more clouds present in an input image; an endmember extraction unit for extracting spectra of one or more endmembers other than the one or more clouds from those of the input image; and an unmixing unit for deriving fractional abundances of the respective spectra of one or more endmembers and a selected spectrum of one of the one or more clouds for the each of pixels in the input image.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 25, 2021
    Assignee: NEC CORPORATION
    Inventors: Madhuri Mahendra Nagare, Eiji Kaneko, Hirofumi Aoki
  • Patent number: 11018968
    Abstract: In order to efficiently transmit measurement packets to a plurality of receiving devices at a constant transmission interval, provided is a packet transmission method that comprises a procedure in which transmission requests for a packet sequence composed of a plurality of packets transmitted at a first time interval are grouped every first time interval, and the packet sequence is transmitted on the basis of a transmission request for a group for which the number of transmission requests is at least a specified value.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 25, 2021
    Assignee: NEC CORPORATION
    Inventor: Koichi Nihei
  • Patent number: 11019456
    Abstract: A guidance assistance apparatus includes: a memory that stores a set of instructions; and at least one processor configured to execute the set of instructions to: acquire a guidance route through which a guided person is to be guided from routes from a start-point position to an endpoint position; calculate, based on information relating to the routes, an influence level on the guided person in a case in which the guided person deviates from the acquired guidance route, with respect to each of branch places at which the guidance route branches into a route different from the guidance route; and output the calculated influence level.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 25, 2021
    Assignee: NEC CORPORATION
    Inventor: Yoshiharu Maeno
  • Publication number: 20210145324
    Abstract: A fingerprint reading device that can suppress a position shift of a finger, that includes: a placement portion on which a finger is placed; a reading face; a pair of light sources provided on the placement portion and that irradiate the finger with lights; and a reading unit that captures and reads a fingerprint of the finger in contact with the reading face in accordance with lights scattered in the finger and emitted from a surface of the finger, the pair of light sources are provided on both ends of the reading face that are opposed to each other in a width direction of the placement portion and have light guiding parts formed in a front-back direction of the placement portion, respectively, and the light guiding parts are formed so as to extend up to above the ends of the reading face.
    Type: Application
    Filed: December 22, 2020
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventors: Yoshinori Koda, Teruyuki Higuchi
  • Publication number: 20210149034
    Abstract: An object detection apparatus 1000 includes: a transmitting unit 1101 configured to emit, to an object 1003, radio waves that serve as transmission signals; a receiving unit 1102 configured to receive the reflected radio waves as reception signals; a spectrum calculation unit 1103 configured to calculate, based on the transmission signals and the reception signals, a spectrum in which a region of a position parameter and a region of a shape parameter of the object 1003 are taken as domains; and a parameter value calculation unit 1107 configured to calculate, based on the calculated spectrum, a value of the position parameter of the object 1003 and a value of the shape parameter thereof.
    Type: Application
    Filed: July 4, 2018
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventor: Shingo YAMANOUCHI
  • Publication number: 20210150388
    Abstract: An input unit 81 inputs action data, in which a state of an environment and an action performed under the environment are associated with each other, a prediction model for predicting a state according to the action on the basis of the action data, and explanatory variables of objective functions for evaluating the state and the action together. A structure setting unit 82 sets a branch structure in which the objective functions are placed at lowermost nodes of a hierarchical mixtures of experts model. A learning unit 83 learns the objective functions including the explanatory variables and branching conditions at nodes of the hierarchical mixtures of experts model, on the basis of the states predicted with the prediction model applied to the action data divided in accordance with the branch structure.
    Type: Application
    Filed: March 30, 2018
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventor: Riki ETO
  • Publication number: 20210147075
    Abstract: Provided is a landing apparatus which guides an unmanned aircraft to avoid obstacles and lands the unmanned aircraft at a low-risk spot. The landing apparatus has a dangerous object position detecting device, a movement target spot calculating device, and a parachute control device. The dangerous object position detecting device detects the position of a dangerous object that is present in the vicinity of the unmanned aircraft attempting to land using a parachute. Based on the position of the dangerous object, the movement target spot calculating device calculates a movement target spot to which the unmanned aircraft should move at each instance in order to avoid colliding with the dangerous object and landing on a dangerous site. The parachute control device controls the parachute so that the unmanned aircraft moves to the movement target spot calculated by the movement target spot calculating device.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventors: Masafumi EMURA, Masatsugu OGAWA, Masumi ICHIEN
  • Publication number: 20210149374
    Abstract: An information processing device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performing operations. The operations includes: constructing second data that is acquired, based on first data containing a plurality of observation values in a plurality of times, by stacking the first data with respect to the times, and extracting a constant pattern that is a combination of the observation values having temporal constancy in the first data, based on the second data; generating a difference between the first data and the constant pattern in the time; and extracting a random pattern that is a combination of the observation values without temporal constancy, based on the difference.
    Type: Application
    Filed: June 19, 2017
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventor: Tsubasa TAKAHASHI
  • Publication number: 20210151749
    Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which has improved cycle characteristics and comprises a Si material in the negative electrode. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material and an electrolyte solution, wherein the negative electrode active material comprises a Si material, and a ratio (Ia/Ib) of a peak intensity (Ia) at 290 eV to a peak intensity (Ib) at 285 eV is 0.7 or more in a C1s spectrum obtained by surface analysis of the negative electrode by X-ray photoelectron spectroscopy.
    Type: Application
    Filed: May 17, 2018
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventors: Suguru TAMAI, Hitoshi ISHIKAWA
  • Publication number: 20210150185
    Abstract: A reference data extraction unit extracts, from a photographic image from an imaging device that captures an image of an object to be recognized, an image of a reference image region serving as a reference and containing a detection subject in the object. A expanded data extraction unit extracts from the photographic image an image of an expanded-image region, which is an image region that includes the reference image region and is larger than the reference image region. A reduced data extraction unit extracts from the photographic image an image of a reduced-image region, which is an image region that includes the detection subject and is smaller than the reference image region, with the result that a portion of the object is outside of the region. A learning unit uses the extracted images of the image region to learn a dictionary.
    Type: Application
    Filed: May 21, 2019
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventor: Takeharu KITAGAWA
  • Publication number: 20210149852
    Abstract: The information processing apparatus (2000) includes an acquisition unit (2020), a sparsity calculation unit (2040), a selection unit (2060), and an output unit (2080). The acquisition unit (2020) acquires the input matrix data information. The sparsity calculation unit (2040) calculates the sparsity of the target matrix data represented by the input matrix data information. The selection unit (2060) selects a representation format to be applied to the output matrix data information from a plurality of representation formats, based on the sparsity calculated by the sparsity calculation unit (2040). The plurality of representation formats include the dense representation format and at least two sparse representation formats. The output unit (2080) outputs the output matrix data information that represents the target matrix data in the representation format selected by the selection unit (2060).
    Type: Application
    Filed: July 4, 2017
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventor: Salita SOMBATSIRI
  • Publication number: 20210146934
    Abstract: A vehicle operation assistance device is provided with: a visual line range determination unit that determines whether a recognition range including a visual line range of an operator of a mobile body corresponds to either an operation panel range to be operated or an external-environment checking range; a vigilance calculation unit that calculates alertness and attentiveness of the operator on the basis of at least movement of the operator's visual line; and a control unit that controls on-board devices of the mobile body on the basis of the recognition range and at least one of the alertness and attentiveness.
    Type: Application
    Filed: March 15, 2018
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventors: Kazuki INAGAKI, Hideki AMEMIYA, Norimasa TAMURA, Kazuki OGATA
  • Publication number: 20210150143
    Abstract: An information processing device according to the present invention includes: a memory; and a processor coupled to the memory. The processor performs operations. The operations includes: generating, based on language data, a predicate argument structure including a predicate and an argument being an object of the predicate; generating first data indicating co-occurrence of the predicate and the argument in the predicate argument structure; decomposing the first data into a plurality of pieces of second data including fewer elements than elements included in the first data, and generating, based on the second data, third data including potential co-occurrence of the predicate and the argument; selecting the predicate argument structure by using the first data and the third data, and calculating, by using the third data, a score for a pair of the predicate argument structures including the selected predicate argument structure; and selecting the pair, based on the score.
    Type: Application
    Filed: June 21, 2017
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventors: Shohei HIGASHIYAMA, Yuzuru OKAJIMA, SADAMASA Kunihiko
  • Publication number: 20210150173
    Abstract: A fingerprint processing device includes a match processing unit configured to determine, based on a first degree, a plurality of feature points having a large value of the first degree among the feature points of a fingerprint specified in a fingerprint image of a matching source, the first degree representing a first distance to other feature points, as representative feature points used in match processing of the fingerprint.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Applicant: Nec Corporation
    Inventor: Akira HIROKAWA
  • Publication number: 20210153243
    Abstract: A wireless communication system according to the present disclosure includes an access point (AP) belonging to a certain BSS and a terminal (STA) belonging to the AP. The STA updates an NAV used for virtual carrier sense according to whether the AP and the STA are permitted to use OBSS_PD-based SR.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Applicant: NEC Corporation
    Inventors: Leonardo LANANTE, Yuhei NAGAO, Hiroshi OCHI
  • Publication number: 20210153298
    Abstract: A first data center includes a first virtual network that provides a communication service in cooperation with at least a part of a communication facility of a first communication operator and a first communication unit that is operable to communicate with a second data center. The second data center includes a second virtual network that provides a communication service in cooperation with at least a part of a communication facility of a second communication operator and a second communication unit that is operable to communicate with the first data center. The first communication unit is operable to transmit to the second communication unit, communication data to be transmitted from a first terminal connecting to the first virtual network via a communication facility of the first communication operator to a second terminal connecting via a communication facility of the second communication operator to the second virtual network.
    Type: Application
    Filed: January 4, 2021
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventors: Shintaro NAKANO, Hideo Hasegawa, Satoru Ishii
  • Publication number: 20210153255
    Abstract: A cellular communication system is disclosed in which user equipment (UE) initiates a random access channel (RACH) procedure by sending one or more messages, comprising a random access preamble, to a 5G base station, using one or more uplink carriers of a plurality of such carriers available for use by the UE. The base station selects an uplink carrier for initial access by the UE and informs the UE, as part of the RACH procedure, of the UL carrier selected by the base station.
    Type: Application
    Filed: June 13, 2018
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventor: Caroline LIANG
  • Publication number: 20210152395
    Abstract: A gateway apparatus includes: a gateway apparatus selection part configured to select a first gateway apparatus compliant with a first version of a communication protocol or a second gateway apparatus compliant with a second version of the communication protocol different from the first version of the communication protocol, the first and second gateway apparatuses being connected to a communication destination network, in such a manner that a selection rate of the first and second gateway apparatuses matches a predetermined rate; a message conversion part configured to convert a version of a message(s); and a transmission part configured to transmit a message(s) after matching the version of the communication protocol of the message(s) and the version of the communication protocol of the selected one of the first and second gateway apparatuses.
    Type: Application
    Filed: May 10, 2018
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventor: Hirofumi SASAKI
  • Publication number: 20210153043
    Abstract: Embodiments of the present disclosure relate to methods, terminal device, network device and apparatus for interference measurement. In an embodiment of the present disclosure, the method of interference measurement comprises performing interference measurement with interference measurement resource, wherein the interference measurement resource is a subset of resources for reference signal. With embodiments of the present disclosure, it may provide a suitable solution of interference measurement for the RS in the NR system in an efficient way.
    Type: Application
    Filed: June 13, 2017
    Publication date: May 20, 2021
    Applicant: NEC CORPORATION
    Inventors: Yukai GAO, Gang WANG
  • Patent number: 11011185
    Abstract: Provided is a processing device capable of, on the basis of data prepared by a recorder that only has recording function, acquiring information related to a time when the data was prepared. The processing device includes an acquisition unit for acquiring the recorded audio data, and an identification unit for detecting a sound signal that is included in the audio data and transmitted from an information transmission device and allows the time at which the signal was recorded to be identified, and identifying the time when other signals included in the audio data were recorded on the basis of the sound signal.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: May 18, 2021
    Assignee: NEC CORPORATION
    Inventors: Reishi Kondo, Yuzo Senda