Patents Assigned to NEC Corporation
  • Publication number: 20210172828
    Abstract: A damage diagnosis device is provided with: a detection unit for detecting that, immediately after a vehicle crossing a bridge has exited from the bridge, another vehicle is not crossing the bridge; a determination unit for determining whether the weight of the vehicle satisfies a criterion; and a diagnosis unit that, when the detection unit has detected that no other vehicle is crossing the bridge and the determination unit has determined that the weight of the vehicle satisfies the criterion, diagnoses damage to the bridge on the basis of information representing free vibration generated in the bridge due to the crossing of the vehicle, thereby improving the precision of diagnosis when damage to a bridge is diagnosed on the basis of information representing free vibration generated in the bridge due to the crossing of a vehicle.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventors: Shohei KINOSHITA, Shigeru KASAI, Yu KIYOKAWA
  • Publication number: 20210174062
    Abstract: An image processing device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: detecting a feature point to be used for authentication of a target object included in an image; calculating a first blur being a blur of a predetermined processing point in the feature point; and estimating, by using the first blur, a second blur being a blur of the target object.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Akihiro HAYASAKA
  • Publication number: 20210174021
    Abstract: An information processing apparatus includes a lexical analysis unit that generates a training word string, a group generation unit that generates a plurality of training word groups, a matrix generation unit that generates, for each training word group, a training matrix in which a plurality of words and respective semantic vectors of the words are associated, a classification unit that calculates, for a word of each position of the training word string, a probability of the word corresponding to a specific word, using the training matrices generated by the matrix generation unit and a determination model that uses a convolutional neural network, and an optimization processing unit that updates parameters of the determination model, such that the probability of the word labeled as corresponding to the specific word is high, among the probabilities of the words of the respective positions of the training word string calculated by the classification unit.
    Type: Application
    Filed: November 10, 2017
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Kai ISHIKAWA
  • Publication number: 20210174276
    Abstract: The information processing device estimates one of event and factor by giving model information the other; generates association information, the model information representing relevance between an event that occurs on a target and the factor that occurs before the event, the association information associating first event information that represents the event obtained as the estimation result with first factor information that represents the given factor or associating second event information that represents the given event with second factor information that represents the factor obtained as the estimation result; and specifies the factor of third event information representing an event occurred on the target based on the model information by using the third event information and, at least, one of the first event information and the second event information included in the association information.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventors: Mineto SATOH, Soichiro ARAKI, Kenichiro FUJIYAMA, Tan AZUMA, Tetsuri ARIYAMA
  • Publication number: 20210174129
    Abstract: The information processing apparatus (2000) includes a feature point detection unit (2020), a determination unit (2040), an extraction unit (2060), and a comparison unit (2080). A feature point detection unit (2020) detects a plurality of feature points from the query image. The determination unit (2040) determines, for each feature point, one or more object images estimated to include the feature point. The extraction unit (2060) extracts an object region estimated to include the object in the query image in association with the object image of the object estimated to be included in the object region, on the basis of the result of the determination. The comparison unit (2080) cross-checks the object region with the object image associated with the object region and determines an object included in the object region.
    Type: Application
    Filed: November 7, 2017
    Publication date: June 10, 2021
    Applicant: NEC CORPORATION
    Inventor: Kota IWAMOTO
  • Publication number: 20210174373
    Abstract: This ticket validity confirmation device prepares certificate data that is associated with one ticket and that comprises a set of certificate preparation information and certificate verification information, then stores the certificate verification information in a storage device, and transmits the certificate preparation information to a ticket information processing device. The ticket information processing device prepares a ticket validity certificate on the basis of the certificate preparation information, and transmits the ticket validity certificate to the ticket validity confirmation device. The ticket validity confirmation device verifies the ticket validity certificate on the basis of the certificate verification information stored in the storage device.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Sanami NAKAGAWA
  • Publication number: 20210174231
    Abstract: Disclosed is a model generation device capable of mitigating the risk of overlooking a phenomenon of interest in machine learning. The model generation device determines whether or not a label of a first data is similar to a label of a second data. The model generation device assigns the label of the second data to the first data when determining that the label of the first data is similar to the label of the second data based on a degree of similarity between observation information representing a state where the first data is observed and observation information representing a state where the second data is observed. The model generation device calculates model representing a relevance between data information containing the first data and the second data and label information containing the assigned label and the label of the second data.
    Type: Application
    Filed: August 2, 2018
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventors: Azusa SAWADA, Takashi SHIBATA, Katsuhiko TAKAHASHI
  • Publication number: 20210174094
    Abstract: An information processing apparatus (2000) detects a stationary object from video data (12). In addition, the information processing apparatus (2000) executes person detection process of detecting a person in vicinity of an object (target object) detected as the stationary object for each of a plurality of video frames (14) which includes the target object.
    Type: Application
    Filed: March 30, 2017
    Publication date: June 10, 2021
    Applicant: NEC CORPORATION
    Inventor: Ryoma OAMI
  • Publication number: 20210175912
    Abstract: A communication apparatus (50) includes a path splitting unit configured to split an existing path into two paths, with one path being formed by appending 1 to the existing path and, the other path being formed by appending ?1 to the existing path; a path metric sort unit (53) configured to sort the paths in the ascending order of their path metric values; and a path pruning unit (54) configured to choose L (L is an integer more than 1) paths which have lower path metric values; a select path unit (55) configured to select a path with lowest path metric among all available paths at the end of all the baseband samples and the selected path serving as the output bit sequence.
    Type: Application
    Filed: August 21, 2018
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Soubhik DEB
  • Publication number: 20210174820
    Abstract: This invention provides a signal processing apparatus for receiving a mixed signal including at least one target signal and outputting a desired composite signal. The signal processing apparatus includes a storage unit that stores an acoustic signal, and a signal processor that receives a mixed signal including at least one target signal, and composites the acoustic signal stored in a storage unit with the at least one target signal.
    Type: Application
    Filed: August 24, 2018
    Publication date: June 10, 2021
    Applicants: NEC Corporation, NEC p|atforms, Ltd.
    Inventors: Akihiko SUGIYAMA, Ryoji MIYAHARA
  • Publication number: 20210176252
    Abstract: A random number generation server device includes a random number generation unit generating random numbers, a share addition unit generating secret shared data masked using random numbers and the secret shared data of operands in secret equality determination, a secret shared data generation unit generating secret shared data of inputted values, a secret shared data restoration unit obtaining the original values by restoring the secret shared data, and a determination bit-conjunction unit using the secret shared data to perform secret equality determination. A mask value restoration server device includes a secret shared data generation unit, a secret shared data restoration unit, and a determination bit-conjunction unit. A secure computation server device includes a secret shared data generation unit, a secret shared data restoration unit, and a determination bit-conjunction unit.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 10, 2021
    Applicant: NEC CORPORATION
    Inventors: Hikaru TSUCHIDA, Toshinori ARAKI, Kazuma OHARA
  • Publication number: 20210176706
    Abstract: A radio terminal (3) can perform carrier aggregation using a first cell (10) of a first radio station (1) and a second cell (20) of a second radio station (2). The first radio station (1) or the second radio station (2) transmits constraint information to the radio terminal (3). The constraint information contains an information clement necessary to specify a reception constraint and/or transmission constraint related to the first cell (10) and/or the second cell (20) when the carrier aggregation is performed. The reception/transmission constraint is a constraint related to downlink signal reception/uplink signal transmission by the radio terminal over one or more subframe periods of the primary cell (10) and the secondary cell (20). It is thus, for example, possible to contribute to reduction in wasteful power consumption in the radio terminal in the carrier aggregation of a plurality of cells served by different radio stations.
    Type: Application
    Filed: January 20, 2021
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA
  • Publication number: 20210174540
    Abstract: According to the some non-limiting embodiments, there is provided an information processing apparatus including a display control unit 13 that causes a display provided on a surface on which an object is placed, to display a first image including a predetermined display element, and a conversion rule generation unit 15 that acquires a second image generated by an imaging apparatus having an imaging range including the display and generates a conversion rule for converting coordinates in the image of the imaging apparatus into coordinates in the display, by using a detection result of the display element in the second image.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventors: Kota IWAMOTO, Soma SHIRAISHI, Hideo YOKOI, Tsugunori TAKATA
  • Publication number: 20210176175
    Abstract: In order to enable prediction of communication having high quality requirements, this communication device is provided with: a determination unit that determines that a change has occurred in the communication state of communication which is performed, with a device connected to a network, by each of a first terminal and a second terminal communicating with the device; and a derivation unit that, when the change in the second terminal is determined to be being occurring in synchronization with the change in the first terminal, derives a second change time at which the change occurs in the second terminal, on the basis of a first change time at which the change occurs in the first terminal.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Takeo ONISHI
  • Publication number: 20210176766
    Abstract: A small cell communication system is disclosed in which an apparatus (e.g. a central controller) controls allocation of frequency resources in the cells. The apparatus obtains respective information (e.g. RSRP) representing a quality of communication at each user equipment (UE) in the cells; determines, based on the received information, whether a corresponding UE is a subject of interference and, when the corresponding UE is a subject of interference, identifies at least one aggressor causing the interference to that UE. In each cell, the UEs served by that cell are grouped such that UEs having a common aggressor (or common aggressors) are grouped into respective group(s), and any UEs not subject to interference are grouped into another group. The apparatus allocates at least one frequency for each UE based on the respective group into which that UE has been grouped.
    Type: Application
    Filed: July 9, 2019
    Publication date: June 10, 2021
    Applicant: NEC Corporation
    Inventor: Tao GUO
  • Patent number: 11032431
    Abstract: To provide a gateway device that achieves charging control in accordance with a RAT being used by a UE even when the UE is performing communication using different RATs at the same time, the present gateway device (30) includes a management unit (31) configured to, when a communication terminal (10) forms communication aggregation by performing a first radio communication using a first radio access technology and a second radio communication using a second radio access technology, manage at least one bearer assigned to the communication terminal (10) in association with information indicating the first and second radio access technologies, and a charging system communication unit (32) configured to transmit the information indicating the first and second radio access technologies to at least one policy charging control device (40) that performs charging control.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventor: Toshiyuki Tamura
  • Patent number: 11030286
    Abstract: A scenario including a combination of procedures of multi-factor authentication required for a terminal to receive provision of a service is stored and managed in association with the service, and a probability that the procedure will succeed is stored and managed in association with each of the procedures, a success probability of the service through the scenario, is calculated based on the probability regarding the procedure to evaluate at least one of security and usability based on the success probability, and the service to the terminal, is controlled according to the evaluation result.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: June 8, 2021
    Assignees: NEC CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Shizuo Sakamoto, Rie Yamaguchi, Hiroya Susuki
  • Patent number: 11032109
    Abstract: This invention is directed to a communication processing apparatus that secures a safe connection from a non-IP-connection device to an IP-connection cloud (server). This communication processing apparatus includes a first connection unit that connects devices, a second connection unit that connects to servers, a switching unit that switches connections of the devices and the servers between the first connection unit and the second connection unit, a determiner that determines whether connection of a device to the first connection unit is permitted or unpermitted, and a connection controller that controls the switching unit in accordance with a determination result from the determiner.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventor: Takeshi Hayashi
  • Patent number: 11030464
    Abstract: Provided are an image processing device and the like which implement personal privacy protection while suppressing a reduction in visibility for an image. The image processing device is provided with: a memory storing instructions; and one or more processors configured to execute the instructions to: detect a person region that is a region where a person appears in an image captured by a camera device; and perform, on the person region, privacy processing a strength of which differs according to a depth associated with coordinates of the person region or a predetermined index related to the depth.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventor: Yuki Ito
  • Patent number: 11031800
    Abstract: The present invention provides a determination apparatus (10) including: a target information obtaining unit (12) that obtains current position information of an energy storage system; a regular information obtaining unit (11) (position information obtaining unit) that obtains installation position associated with each energy storage system; and a determination unit (13) that determines whether or not the energy storage system is installed at the installation position on the basis of the current position information of the energy storage system.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventors: Shinichiro Kosugi, Hiroshi Hanafusa, Hideki Tanabe, Yusuke Mori