Patents Assigned to NEC Corporation
  • Publication number: 20190149665
    Abstract: Included are an outgoing call detection unit configured to detect an outgoing call from a first communication terminal to a second communication terminal, a connection control unit configured to cause the outgoing call detected by the outgoing call detection unit to arrive at the second communication terminal, a call duration measurement unit configured to measure a time from when a phone call is started, which is a duration of the phone call, between the first communication terminal and the second communication terminal, and a notification unit configured to transmit, when the duration measured by the call duration measurement unit exceeds a predetermined duration before the phone call ends, a predetermined notification to a third communication terminal.
    Type: Application
    Filed: March 10, 2017
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventor: Shota MORISHITA
  • Publication number: 20190146054
    Abstract: This wave source direction estimation apparatus is capable of highly accurately estimating the direction of a wave source even in an environment with a high surrounding noise level, and is provided with: a plurality of input signal acquisition means for acquiring signals generated at a wave source as input signals; a correlation function calculation means for calculating correlation functions on the basis of the input signals acquired by the input signal acquisition means; an envelope function extraction means for extracting envelope functions on the basis of the calculated correlation functions; a combined envelope function calculation means for calculating a combined envelope function by combining the extracted envelope functions; and an estimated direction information generation means for generating estimated direction information about the wave source on the basis of the calculated combined envelope function.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Publication number: 20190150069
    Abstract: In a method for use in a base station of a mobile telecommunications system, primary system information is maintained and is periodically broadcast while secondary system information is broadcast in response to a trigger event.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventor: Mona MUSTAPHA
  • Publication number: 20190150210
    Abstract: A datacenter, a communication apparatus, a communication method, and a communication control method in a communication system are provided that can enhance the versatility of a datacenter and a virtual network constructed therein. A communication system includes: a plurality of wireless communication facilities owned by a plurality of network operators, respectively; and a datacenter in which a virtual core network is constructed, wherein the virtual core network implements mobile communication functions by using the plurality of wireless communication facilities.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventors: Shintaro NAKANO, Hideo HASEGAWA, Satoru ISHII
  • Publication number: 20190149257
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses of numerology multiplexing at a serving node and a terminal device in a wireless communication system. The method of numerology multiplexing comprises transmitting information about at least two numerologies in common downlink transmission resource, and multiplexing the at least two numerologies in a same frequency band based on the information about the at least two numerologies. With embodiments of the present disclosure, it is possible to enable the different numerologies to be multiplexed in the same band.
    Type: Application
    Filed: August 2, 2016
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventors: Lei JIANG, Hongmei LIU, Gang WANG
  • Publication number: 20190150218
    Abstract: A radio terminal (1) determines (201) (a) a pathloss level between the radio terminal (1) and a base station (2), (b) a coverage enhancement level based on the pathloss level, or (c) a coverage enhancement mode configured in the radio terminal (1). The radio terminal chooses (202) between non-truncated first information and truncated first information, having a smaller bit length than the non-truncated first information, to be included in an initial uplink Radio Resource Control (RRC) message transmitted within a random access procedure, based on the determined pathloss level, the determined coverage enhancement level, or the determined coverage enhancement mode. This contributes to, for example, enabling a base station to easily know the Msg3 size desired by a radio terminal.
    Type: Application
    Filed: January 5, 2017
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventor: Hisashi FUTAKI
  • Publication number: 20190145667
    Abstract: Since improving heat exchange between a gas-phase refrigerant and a liquid-phase refrigerant in a refrigeration system could instead result in a reduction in the efficiency of the whole refrigeration system, a heat exchange device (201) of the present invention includes: a refrigerant supply means (210) for supplying a first-temperature liquid-phase refrigerant (R11) and a second-temperature gas-phase refrigerant (R12) in one circulation system; a plurality of heat exchange means (220A, 220B) which are each configured so as to perform heat exchange between the liquid-phase refrigerant and the gas-phase refrigerant; and refrigerant circulation means (231, 232, 242) for circulating the gas-phase refrigerant (R12) in such a manner that the gas-phase refrigerant (R12) flows in parallel in the plurality of heat exchange means, and circulating the liquid-phase refrigerant (R11) in such a manner that the liquid-phase refrigerant (R11) flows in series in the plurality of heat exchange means.
    Type: Application
    Filed: March 23, 2017
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventors: Arihiro MATSUNAGA, Minoru YOSHIKAWA, Hisato SAKUMA, Masato YANO, Asuka MATSUBA, Takafumi NATSUMEDA
  • Publication number: 20190150046
    Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventors: Shingo SHIGA, Shinji ONISHI, Daisuke MIZUKAMI, Kazuhiro EGASHIRA, Toshiyuki TAMURA
  • Publication number: 20190149466
    Abstract: A time slot designing device capable of outputting a correction location and a correction reason of a constraint relating to a slot allocation result that satisfies a corrected constraint is provided. A slot designing device 10 includes an output means 11 for outputting a correction constraint being a constraint as a correction target included in a constraint group relating to a constraint satisfaction problem from which a satisfiable solution is not derived, and a correction reason being a reason why the correction constraint is corrected; and a derivation means 12 for deriving a satisfiable solution of a constraint satisfaction problem generated based on the constraint group in which the output correction constraint is corrected. The derivation means 12 outputs information indicating the correction constraint and the correction reason that are output up until the satisfiable solution is derived.
    Type: Application
    Filed: April 10, 2017
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventor: Satoshi YAMAZAKI
  • Publication number: 20190147282
    Abstract: Provided is a technique for enhancing operability of a mobile apparatus. An information processing apparatus (2000) includes a first processing unit (2020), a second processing unit (2040), and a control unit (2060). The first processing unit (2020) generates information indicating an event detection position in accordance with a position on a surveillance image set in a first operation. The first operation is an operation with respect to the surveillance image displayed on a display screen. The second processing unit (2040) performs a display change process with respect to the surveillance image or a window including the surveillance image. The control unit (2060) causes any one of the first processing unit (2020) and the second processing unit (2040) to process the first operation on the basis of a second operation.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 16, 2019
    Applicant: NEC CORPORATION
    Inventors: Kenichiro IDA, Hiroshi KITAJIMA, Hiroyoshi MIYANO
  • Publication number: 20190149251
    Abstract: A radio communication system is provided with: a transmission apparatus that responds to OAM radio communication, a receiving apparatus that responds to OAM radio communication, and a correction apparatus. The correction apparatus corrects antenna axes of the transmission apparatus and the receiving apparatus, based on correlation information that associates: information related to the antennas of the transmission apparatus and the receiving apparatus, and an inter-mode interference pattern that characterizes interference by a transmission mode when the transmission apparatus transmits a signal, on a receiving mode when the receiving apparatus receives a signal.
    Type: Application
    Filed: June 8, 2017
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventor: Ryuji ZENKYU
  • Publication number: 20190149259
    Abstract: An optical transmission system includes: a terminal station device that transmits a wavelength multiplexed optical signal resulting from multiplexing an optical signal and dummy light; and an optical add-drop multiplexer that receives respective wavelength multiplexed optical signals transmitted from a plurality of the terminal station devices and performs add-drop processing on the wavelength multiplexed optical signals. The dummy light has a wavelength arrangement in which adjacent wavelengths are arranged with equal spacing, and the wavelength arrangement of the dummy light differs between the terminal station devices.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventor: Yoshihisa INADA
  • Patent number: 10288826
    Abstract: In order to prevent, without significantly reducing the power of a transmission path, a signal unnecessary for a branch station from being intercepted at the branch station, a node apparatus comprises: a first optical unit that outputs a first optical signal received from a first terminal station and addressed to a second terminal station and also outputs a second optical signal received from the first terminal station and addressed to a third terminal station; and a second optical unit that receives the first and second optical signals outputted from the first optical unit, optically removes a portion of the spectrum of the first optical signal, thereby generating a fourth optical signal, and passes the second optical signal as it is, thereby transmitting the second optical signal together with the fourth optical signal to the third terminal station.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: May 14, 2019
    Assignee: NEC CORPORATION
    Inventor: Shohei Yamaguchi
  • Patent number: 10289081
    Abstract: A system to manage a power grid includes one or more storage and generator devices coupled to the power grid; and a decentralized management module to control the devices including: a module to perform decentralized local forecasts; and a module to perform decentralized device reconfiguration.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 14, 2019
    Assignee: NEC Corporation
    Inventors: Ali Hooshmand, Ratnesh Sharma, Ceyhun Eksin
  • Patent number: 10289824
    Abstract: A facility access control system and corresponding method are provided. The facility access control system includes a camera configured to capture an input image of a subject attempting to enter or exit a restricted facility. The facility access control system further includes a memory storing a deep learning model configured to perform multi-task learning for a pair of tasks including a liveness detection task and a face recognition task. The facility access control system also includes a processor configured to apply the deep learning model to the input image to recognize an identity of the subject in the input image regarding being authorized for access to the facility and a liveness of the subject. The liveness detection task is configured to evaluate a plurality of different distracter modalities corresponding to different physical spoofing materials to prevent face spoofing for the face recognition task.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: May 14, 2019
    Assignees: NEC Corporation, NEC Hong Kong Limited
    Inventors: Manmohan Chandraker, Xiang Yu, Eric Lau, Elsa Wong
  • Patent number: 10289934
    Abstract: A system and method are provided. The system includes an image capture device configured to capture an actual image depicting an object. The system also includes a processor. The processor is configured to render, based on a set of 3D Computer Aided Design (CAD) models, a set of synthetic images with corresponding intermediate shape concept labels. The processor is also configured to form a multi-layer Convolutional Neural Network (CNN) which jointly models multiple intermediate shape concepts, based on the rendered synthetic images. The processor is further configured to perform an intra-class appearance variation-aware and occlusion-aware 3D object parsing on the actual image by applying the CNN to the actual image to output an image pair including a 2D geometric structure and a 3D geometric structure of the object depicted in the actual image.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 14, 2019
    Assignee: NEC Corporation
    Inventors: Muhammad Zeeshan Zia, Quoc-Huy Tran, Xiang Yu, Manmohan Chandraker, Chi Li
  • Patent number: 10289841
    Abstract: Methods and systems for detecting anomalous events include detecting anomalous events in monitored system data. An event correlation graph is generated based on the monitored system data that characterizes the tendency of processes to access system targets. Kill chains are generated that connect malicious events over a span of time from the event correlation graph that characterize events in an attack path over time by sorting events according to a maliciousness value and determining at least one sub-graph within the event correlation graph with an above-threshold maliciousness rank. A security management action is performed based on the kill chains.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 14, 2019
    Assignee: NEC Corporation
    Inventors: LuAn Tang, Hengtong Zhang, Zhengzhang Chen, Bo Zong, Zhichun Li, Guofei Jiang, Kenji Yoshihira
  • Patent number: 10286395
    Abstract: A microchip comprises a plurality of laminated elastic sheets, wherein the elastic sheets are partially inadhesive each other so that at least 3 middle layers are formed; as a first middle layer, first flow path and second flow path through which liquid flows are formed; as a second middle layer, a first flow path opening/closing section for opening and closing the first flow path is formed; and as a third middle layer, a second flow path opening/closing section for opening and closing the second flow path is formed.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 14, 2019
    Assignee: NEC CORPORATION
    Inventors: Minoru Asogawa, Yoshinori Mishina, Hisashi Hagiwara, Yasuo Iimura
  • Patent number: 10289471
    Abstract: A method is provided for root cause anomaly detection in an invariant network having a plurality of nodes that generate time series data. The method includes modeling anomaly propagation in the network. The method includes reconstructing broken invariant links in an invariant graph based on causal anomaly ranking vectors. Each broken invariant link involves a respective node pair formed from the plurality of nodes such that one of the nodes in the respective node pair has an anomaly. Each causal anomaly ranking vector is for indicating a respective node anomaly status for a given one of the plurality of nodes when paired. The method includes calculating a sparse penalty of the casual anomaly ranking vectors to obtain a set of time-dependent anomaly rankings. The method includes performing temporal smoothing of the set of rankings, and controlling an anomaly-initiating one of the plurality of nodes based on the set of rankings.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 14, 2019
    Assignee: NEC Corporation
    Inventors: Wei Cheng, Kai Zhang, Haifeng Chen, Guofei Jiang
  • Patent number: 10287756
    Abstract: In order to keep the deterioration of water distribution pipes from progressing, a tap water management system is provided with: a water pressure detection unit for detecting the water pressure in at least one location in a water distribution pipe for carrying clean water from a water distribution site to a consumer. and transmitting the detection result as water pressure information; a deterioration detection unit for detecting deterioration in at least one location in a water distribution pipe, and transmitting the detection result as deterioration information; a water distribution planning unit for causing a water distribution plan that is a plan for water distribution pressure to be determined on the basis of information regarding past water demand; a deterioration-reducing water distribution planning unit for deciding, on the basis of the water distribution plan, the water pressure information, and the deterioration information.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 14, 2019
    Assignee: NEC CORPORATION
    Inventors: Dai Kobayashi, Takahiro Kumura, Masatake Takahashi