Patents Assigned to NEC Corporation
  • Publication number: 20190090311
    Abstract: The present invention enables simplification of a setting operation when various services are provided via an MVNO. A virtual network system is provided with a first device, a second device, and a third device. The first device utilizes a mobile communication service provided by a mobile virtual network operator to authenticate a user terminal that accesses a first physical network. The second device permits the user terminal that has been successfully authenticated to access, via a virtual network configured in a second physical network, a virtual network of the first physical network in accordance with the result of the authentication. The third device sets information concerning the user terminal in the first and the second device.
    Type: Application
    Filed: June 21, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Masanori TAKASHIMA, Shuichi SAITO
  • Publication number: 20190089675
    Abstract: [Problem] To allow a packet transmitted from an external node to be delivered to a subscriber device, when a network address translation device is restarted. [Solution] A network address translation device according to an exemplary aspect of the invention includes: a mapping setting unit that sets a static port mapping in response to a request from a setting requesting device that requests setting of the static port mapping; and a flow transmitting unit that subjects a packet flow from a subscriber device to address translation, based on the static port mapping that has been set by the mapping setting unit, and transmits the packet flow, wherein when the network address translation device is restarted, the flow transmitting unit discards the packet flow until receiving, from the setting requesting device, a notification that indicates completion of re-setting of the static port mapping for the network address translation device.
    Type: Application
    Filed: March 14, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Fumihiro TANIGUCHI
  • Publication number: 20190087664
    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: Application
    Filed: March 13, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Yuki ITO
  • Publication number: 20190089802
    Abstract: In order for efficiently managing communications between a UE (10) and multiple SCSs (20_1-20_n), the UE (10) includes, in one message, multiple pieces of data to be transmitted to the SCSs (20_1-20_n), and sends the message to an MTC-IWF (30). The MTC-IWF (30) receives the message from the UE (10), and distributes the date to the SCSs (20_1-20_n). Each of the SCSs sends (20_1-20_n), to the MTC-IWF (30), data to be transmitted to the UE (10) and an indicator that indicates for the SCSs (20_1-20 n) the time tolerance until the data is transmitted to the UE (10). The MTC-IWF (30) receives the data and the indicators from the SCSs (20_1-20_n), and determines when to forward the data to the UE (10) based on the indicators.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventors: Xiaowei ZHANG, Anand Raghawa Prasad
  • Publication number: 20190090232
    Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
    Type: Application
    Filed: October 16, 2018
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Kenji KOYANAGI, Takamichi INOUE, Le LIU, Yoshikazu KAKURA
  • Publication number: 20190089795
    Abstract: A communication analysis device updates statistical information on a content access based on the communication session log of a user. The content access is an aggregation of a plurality of communication sessions needed for browsing one website. The communication analysis device acquires session information pertaining to one communication session, and determines whether a lapsed time from the start time or end time of a base communication session to the start time or end time of the one communication session is equal to or less than a threshold value. When the lapsed time is equal to or less than the threshold value, the communication analysis device determines that the one communication session is included in the same content access as the base communication session, and updates the statistical information of the content access. The communication analysis device stochastically sets the threshold value based on a prescribed probability distribution.
    Type: Application
    Filed: March 8, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Hiroshi YOSHIDA
  • Publication number: 20190087186
    Abstract: A data processing apparatus including a waveform data acquisition unit which acquires waveform data of a consumption current and/or a voltage of a target device, a feature value extraction unit which extracts a waveform feature value from the waveform data, an environment data acquisition unit which acquires environment data indicating an environment of the target device at the time when the waveform data is acquired, an operation state data acquisition unit which acquires operation state data indicating an operation state of the target device at the time the waveform data is acquired, a distance calculation unit which calculates a distance between each of members including the waveform feature value, the environment data, and the operation state data, and each of a plurality of reference members, a grouping unit which groups the members, and a registration unit which registers a group satisfying a predetermined condition as training data.
    Type: Application
    Filed: January 20, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventor: Kaoru ENDO
  • Publication number: 20190087950
    Abstract: A fingerprint capture system, a fingerprint capture device, an image processing apparatus, a fingerprint capture method, and a storage medium that can acquire a high quality fingerprint image are provided. A disclosed example includes: a capture unit that captures a fingerprint; an image processing unit that processes a transferred fingerprint image captured by the capture unit; a display unit on which the fingerprint image transferred to the image processing unit is displayed; a recording unit where the fingerprint image transferred to the image processing unit is recorded by the image processing unit; and an instruction unit that inputs, in the image processing unit, a record instruction that instructs the image processing unit to record the fingerprint image in the recording unit. The image processing unit records, in the recording unit, the fingerprint image displayed on the display unit at the time the record instruction is input by the instruction unit.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Teruyuki HIGUCHI, Yoshinori KODA
  • Publication number: 20190086157
    Abstract: The cooling system according to the present invention comprises a heat-receiving section including an approximately constant cross-sectional area along a longitudinal direction. The longitudinal direction is a direction in which a length of the heat-receiving section is longest and a direction along an arrangement of the heat source in the cooling region. The cooling system also comprises a supply tube for supplying a refrigerant in a liquid state into the heat-receiving section, and a recovery tube for recovering the refrigerant, which is vaporized upon reception of heat, from an inside of the heat-receiving section. The cooling system further comprises a heat radiation section for cooling the recovered refrigerant and supplying the refrigerant in a liquid state to the supply tube. The heat-receiving section comprises a refrigerant pathway which causes the refrigerant supplied from the supply tube to flow out into the heat-receiving section along the longitudinal direction.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Masaki CHIBA, Mahiro HACHIYA
  • Publication number: 20190086903
    Abstract: The present invention is directed to a plant management system that actively incorporates the sense or experience of an operator who observes or inspects a plant on work site in plant management processing. The plant management system includes an acquirer that acquires at least a position in which an abnormality suspicious event suspected to be abnormal by an operator on work site has occurred, a sensor specifier that specifies a sensor associated with the abnormality suspicious event based on the at least a position in which the abnormality suspicious event has occurred, and a setter that sets an information collection method in accordance with the specified sensor. In addition, at least one of a type of the abnormality suspicious event and an occurrence time of the abnormality suspicious event may be taken into consideration to specify the sensor.
    Type: Application
    Filed: February 20, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventor: Katsuhiro OCHIAI
  • Publication number: 20190090229
    Abstract: An external node (5) receives a transmission history (1301) regarding a first communication event of a first radio terminal (1) from a node (2) located in a radio access network (3). The external node (5) transmits to the node (2) a control request (1302) to control at least one of: a communication module (521) disposed in the node (2) for communicating with the external node (5); a scheduler (503, 903) disposed in the node (2); a data buffer (502, 11) disposed in the node (2) or the first radio terminal (1); and the first radio terminal (1). It is thus, for example, possible to contribute to an improvement for adapting packet scheduling to communication performed by an application of a radio terminal.
    Type: Application
    Filed: January 30, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventors: Takanori IWAI, Ling XU, Takaaki SUZUKI, Yoshinori WATANABE, Tomoaki HOKAO, Tooru KIKUCHI, Hideki BESSHO
  • Publication number: 20190089035
    Abstract: A ridge waveguide (10) according to the present invention includes a ridge part (11), the ridge part (11) being in contact with both a side (14) in a long-side direction and a side (15) in a short-side direction in a cross-sectional shape of the ridge waveguide. Further, an array antenna apparatus according to the present invention includes a feeder circuit formed by a ridge waveguide (10) including a ridge part (11), the ridge part (11) being in contact with both a side (14) in a long-side direction and a side (15) in a short-side direction in a cross-sectional shape of the ridge waveguide. In this way, it is possible to provide a ridge waveguide that can be easily manufactured.
    Type: Application
    Filed: February 9, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Yoshihide TAKAHASHI
  • Publication number: 20190089117
    Abstract: An excitation light source apparatus capable of assuring an excellent optical transmission characteristic even at occurrence of a gain tilt is provided. The excitation light source apparatus comprises an excitation light outputting means, a control signal detection means, a control signal detection means, an excitation light control means, and a multiplexing means. The excitation light outputting means outputs excitation light for Raman amplification. The control signal detection means detects a control signal of the excitation light outputting means from beams of WDM signal light transmitted through optical fibers in an upstream direction and a downstream direction. The excitation light control means controls the excitation light outputting means, based on the control signal. The multiplexing means multiplexes the excitation light and each of the beams of the WDM signal light, and outputs the respective multiplexed beams of light to the optical fiber.
    Type: Application
    Filed: March 22, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Kohei NAKAMURA
  • Publication number: 20190089003
    Abstract: The purpose of the present invention is to provide a lithium secondary battery which has improved service life characteristics by suppressing a decomposition reaction of the electrolyte solution in the field of batteries that operate at high voltages or are assumed to be used at high temperatures for a long period of time. The present invention relates to an electrolyte solution for a secondary, which is characterized by containing a sulfone compound, a fluorine-containing cyclic acetal compound and a cyclic carbonate in a specific composition; and a secondary battery which uses this electrolyte solution for a secondary battery.
    Type: Application
    Filed: March 3, 2017
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventors: Takehiro NOGUCHI, Shin SERIZAWA, Takuya HASEGAWA
  • Publication number: 20190089652
    Abstract: Provided is a mobile station which communicates with abase station using a radio channel, the mobile station comprising: a switching unit configured to switch from a packet reception period, during which packet reception can be executed, to a packet reception halt period, during which packet reception is halted; a transmission unit configured to transmit, to the base station, a result of receiving a packet sent from the base station, as a reception result notification signal; a packet reception determination unit configured to determine a packet reception fault; and a reception period determination unit configured to extend the packet reception period if the packet reception fault is determined by the packet reception determination unit.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Naoto ISHII, Jinsock LEE
  • Publication number: 20190088022
    Abstract: This invention is directed to a plant management system that presents a position to be measured by a sensor that performs measurement for inspection of a plant or the like when the measurement is executed, thereby preventing a measurement error. The plant management system includes a measurement position instructor that, when performing the measurement by the sensor on a work site, instructs the position to be measured by the sensor on a measurement target, and a presenter that, when the measurement is executed, performs presentation of an image representing the position to be measured by the sensor on the work site by superimposing the image on an image of the measurement target or projecting the image onto the measurement target.
    Type: Application
    Filed: February 20, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventor: Katsuhiro OCHIAI
  • Publication number: 20190089441
    Abstract: A method and system for data communication is provided. The wireless communication system including a base station comprising a plurality of antennas arranged in an array of at least two dimensions. The method includes receiving, at a user equipment (UE) and from a set of the plurality of antennas, a plurality of reference signals, wherein the set of antennas includes antennas arranged in two spatial dimensions; deriving channel estimates based on at least one received reference signal of plurality of reference signals; selecting at the UE based on the channel estimates, a precoding matrix from at least one configurable precoding codebook by applying an associated configurable precoder function to matrices in the configurable precoding codebook; and transmitting, from the UE to the base station, the channel information wherein the channel information includes an identifier of the selected precoding matrix.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventor: Thirukkumaran SIVAHUMARAN
  • Publication number: 20190090188
    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 element 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: November 16, 2018
    Publication date: March 21, 2019
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA
  • Publication number: 20190089674
    Abstract: A flow processing apparatus in a Q-in-Q model may receive frames having different IVIDs but the same sender MAC address, in which case a MAC duplication problem occurs in the flow processing apparatus. A communication system according to an embodiment of the present invention includes: a flow processing apparatus that transmits a MAC duplication notification indicating an occurrence of MAC duplication in a case in which a plurality of frames received from different ports and belonging to a predetermined virtual network have the same sender MAC address; and a flow control apparatus that changes the configuration of the predetermined virtual network in a case in which the MAC duplication notification has been received from the flow processing apparatus.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventor: Kakeru SEINO
  • Patent number: 10234955
    Abstract: An input apparatus (2000) includes a position calculation unit (2020) and an input recognition unit (2040). The position calculation unit (2020) calculates a position of a marker included in a captured image. The marker is attached to the body of a user or is a part of the body of the user. The captured image is generated by a camera at a timing based on a result of detection by a sensor attached to the body of the user. The input recognition unit (2040) recognizes input specifying a location separated from the marker on the captured image on the basis of the calculated position of the marker. The location specified by the input is a location separated from the marker.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 19, 2019
    Assignee: NEC CORPORATION
    Inventors: Shin Norieda, Makoto Yoshimoto, Yoshinori Saida