Patents Assigned to NEC Corporation
  • Patent number: 9843045
    Abstract: It is an object of an exemplary embodiment of the present invention to provide a negative electrode active material having excellent rate characteristics and cycle characteristics. One embodiment according to the present invention is a negative electrode active material comprising a carbon-containing composite, wherein, in the carbon-containing composite, an active material capable of intercalating and deintercalating lithium, conductive nanofibers and conductive carbon particles are coated with a carbon material and are integrated.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: December 12, 2017
    Assignee: NEC Corporation
    Inventors: Ryota Yuge, Noriyuki Tamura
  • Patent number: 9843203
    Abstract: A battery control system, which controls operation of a plurality of batteries connected to an electric power system, the battery control system comprises: detecting means that detects a delay period of each battery of said plurality of batteries which represents a period that has elapsed after the battery control system supplies said each battery with an execution command for charging or discharging said each battery until said each battery operates according to the execution command; measuring means that measures a frequency rate-of-change of electric power of the electric power system; selecting means that selects adjustment batteries for adjusting the electric power of the electric power system from said plurality of batteries based on the frequency rate-of-change and the delay period of said each battery of said plurality of batteries; and command means for supplying the execution command to the adjustment batteries.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: December 12, 2017
    Assignee: NEC Corporation
    Inventors: Koji Kudo, Hisato Sakuma, Hitoshi Yano
  • Patent number: 9843516
    Abstract: The communication node includes an entry memory adapted to store a preset number of the control information entries, each stipulating the processing applied to a packet received, in association with the user information, and a packet processor that references the entry memory to process the packet received. The communication node also includes an entry management section that exercises control so that, on the basis of a preset reference, the proportion of the number of the control information entries for one user stored in the entry memory to the number of the control information entries storable in the entry memory will not surpass a preset value.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Hideki Ogawa
  • Patent number: 9842589
    Abstract: A voice input device provided with an input section for inputting a voice of a user, a recognition section for recognizing the voice of the user inputted by the input section, a generation section for generating characters or a command based on a recognition result of the recognition section, a detection section for detecting a device's own posture, and an instruction section for instructing the generation section to generate the command when a detection result of the detection section represents a specific posture as compared to instructing the generation section to generate the characters when the detection result of the detection section represents a posture other than the specific posture. Accordingly, character input and command input during dictation is correctly distinguished, or more specifically unexpected character input during dictation is avoided.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Yusuke Inutsuka
  • Patent number: 9843496
    Abstract: A communication system includes: a control apparatus configured to set control information, which causes each control target switch to distinguish a link layer discovery protocol packet of a first network from a link layer discovery protocol packet of a second network different from the first network and to perform corresponding predetermined processing, in each control target switch; a group of switches each of which is configured to transmit a link layer discovery protocol packet of the first network to a predetermined topology management apparatus in accordance with control information set by the control apparatus; and a topology management apparatus configured to manage a network topology configured by the group of switches on the basis of information included in a link layer discovery protocol packet of the first network received from each of the switches.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Shihomi Sato
  • Patent number: 9844026
    Abstract: A communication system is disclosed in which a relay communication device identifies a service to be received by at least one other communication device and also identifies the at least one communication device. The relay communication device maintains a mapping between services and the communication device(s) that need to receive that service. The relaying communication device receives service data using a broadcast/multicast bearer and forwards, using a respective device-to-device bearer, the service data to each communication device for which a respective mapping to that particular service is maintained.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: December 12, 2017
    Assignee: NEC Corporation
    Inventors: Christophe Le Thierry D'Ennequin, Dorin Panaitopol, Benoit Lecroart
  • Patent number: 9842285
    Abstract: The present invention is a collation/retrieval system collating a product manufactured by or delivered from a producer or a distributor with a product to be collated comprising: a storage unit that stores an image feature of a predetermined collation area of the product determined in advance at a position relative to a reference section common in every product; a to-be-collated product feature extraction unit that receives an image of the product to be collated and detecting the reference section of the product from the received image to extract an image feature of the collation area determined by reference to the reference section; and a collation unit that collates the stored image feature with the image feature of the collation area of the product to be collated.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 12, 2017
    Assignee: NEC Corporation
    Inventor: Rui Ishiyama
  • Patent number: 9844081
    Abstract: A method and system are proposed for establishing a requested connection between a source node and a destination node in a telecommunications network. The system and method are described in relation to a 3GPP network, but are applicable to other types of networks. The method includes generating a source application identifier for the connection within the source node, retrieving a source node identifier for the source node and transmitting the source application identifier and the source node identifier to the destination to provide a source connection identifier for the requested connection between the source node and the destination node.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Francesca Serravalle
  • Patent number: 9843376
    Abstract: A base station used in a wireless communications system with multiple transmission ranks is disclosed. The base station comprises a memory to store a codebook for a transmission rank, a beamforming controller to precode data with a precoding matrix selected from the codebook, and a transmitter to transmit the precoded data to a user equipment, wherein the precoding matrix is selected according to a first description and a second description, which are unique to the precoding matrix, and wherein the second description provides a finer description of the codebook than the first description. Other methods, systems, and apparatuses also are disclosed.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: December 12, 2017
    Assignee: NEC Corporation
    Inventor: Mohammad Ali Khojastepour
  • Patent number: 9843664
    Abstract: A touch-panel cellular phone specifies an invalid area not accepting a user's input operation on a touch panel in advance. The cellular phone detects a user's touch area on the touch panel so as to execute a function pre-assigned to the touch area not encompassed by the invalid area. Additionally, it is possible to reduce and display menu icons in the display area precluding the invalid area on the touch panel. Thus, it is possible to prevent an error operation when a user holding a cellular phone inadvertently touches the touch panel.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Tomoya Makiguchi
  • Patent number: 9843976
    Abstract: A method performed by a base station includes generating a request for resource status information, sending the generated request to a neighboring base station, receiving one or more resource status update messages from the neighboring base station in response to the requested resource status information, and performing load balancing operations in dependence upon the received one or more resource status update messages.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 12, 2017
    Assignee: NEC CORPORATION
    Inventor: Jagdeep Singh Ahluwalia
  • Publication number: 20170353850
    Abstract: A decrease is realized in network load caused by a change in selection of location registration device or an increase or decrease in the number of installations, on a circuit switching network side. A mobile communication system includes a mobile station, a packet switching station, and a plurality of location registration devices that perform location management of the mobile station. With respect to the mobile station, after one location registration device is already selected from among the plurality of location registration devices, when the mobile station performs location registration, an NRI (Network Resource Identifier) included in a TMSI (Temporary Mobile Station Identifier) is transmitted to the packet switching station. The packet switching station makes a request for location registration with respect to the one location registration device, based on the NRI.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: Nec Corporation
    Inventors: Koji ONISHI, Toshiyuki Tamura, Hidenobu Sasaki, Jyunya Okabe
  • Publication number: 20170353878
    Abstract: To reduce the signal processing performance degradation of a network node and/or to enhance the stability of the network node based on an appropriate estimate of equipment quantity in relation to communication traffic, a control device according to an embodiment of the present invention includes a first means for collecting, from a network node that processes traffic, traffic data that is information about the traffic and a second means for extracting, from the collected traffic data, a traffic feature value including the degree of the variation of the traffic. On the basis of the extracted traffic feature value, the second means calculates the amount of resources necessary for the network node to process the traffic.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventor: Yoshiyuki YAMADA
  • Publication number: 20170352133
    Abstract: An image processing device includes: an estimation unit configured to estimate a spectral reflectance ratio at each pixel position in a visible light image and a near infrared image in which an object of photographing is photographed, the spectral reflectance ratio indicating a ratio of a spectral reflectance of a visible light wavelength region to a spectral reflectance of a near infrared light wavelength region; and a restoration unit configured to multiply an estimated spectral reflectance ratio by luminance of the near infrared image at each pixel position and generate a restored visible light image.
    Type: Application
    Filed: January 15, 2016
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventor: Masato TODA
  • Publication number: 20170353274
    Abstract: A communication apparatus comprises: a controller, a sender and a receiver. The controller determines, among data units provided with reference numbers, a first group that includes data units to be sent to another communication apparatus. The sender sends the data units to another communication apparatus. The receiver receives, from another communication apparatus, information that indicates a reception situation regarding the data units. The sender execute a re-sending process of the data unit corresponding to the reception error when the reception situation indicates a reception error The controller either prevent the sender from sending a data unit in a second group when the sender is executing the re-sending process or stop the re-sending process when the receiver receives a report of arrival of the data unit corresponding to the reception error from the another communication apparatus while the sender is executing the re-sending process.
    Type: Application
    Filed: May 2, 2017
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventor: Masahiro Komatsu
  • Publication number: 20170353244
    Abstract: In a multi-layer network, a control load in the upper layer network increases, and the usage efficiency and the reliability of the entire network decrease; therefore, a multi-layer network system according to an exemplary aspect of the present invention includes a first network manager configured to set a logical path in a first network layer; and a second network manager configured to set a physical path corresponding to the logical path, in a second network layer, wherein the second network manager includes a network information storage configured to store physical network information including physical route information and transmission characteristic information on the second network layer, and the first network manager sets the logical path based on the physical network information.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventors: Hitoshi TAKESHITA, Shinsuke FUJISAWA, Tomoyuki HINO, Akio TAJIMA
  • Publication number: 20170348690
    Abstract: A microchip includes a plurality of laminated elastic sheets. Each of the elastic sheets forming a first intermediate layer as an intermediate layer formed with the plurality of elastic sheets have an inadhesive section(s) for forming a first flow path on the first intermediate layer. Each of the elastic sheets for forming a second intermediate layer as an intermediate layer formed with the plurality of elastic sheets have an inadhesive section(s) for forming a second flow path on the second intermediate layer. An elastic sheet(s) interposed between the first and second intermediate layers has a connecting section(s) connecting the first flow path and the second flow path. A flow path width at the connecting section(s) of the first flow path is narrower than a flow path width at the connecting section(s) of the second flow path.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventors: Minoru ASOGAWA, Yasuo IIMURA
  • Publication number: 20170353007
    Abstract: Provided is a variable wavelength laser device that achieves phase control of high precision while restraining thermal interference and stably outputs emission light of desired wavelength. The variable wavelength laser device of the present invention includes: an optical amplification means including a low-reflective surface that reflects light of wavelengths other than a predetermined wavelength and emits light of the predetermined wavelength; a wavelength control means for controlling wavelength of light being transmitted through the optical waveguide; a phase control means for controlling phase of light being transmitted through the optical waveguide using heat emitted by a heating means; a reflection means for totally reflecting the inputted light; and a heat dissipation means for restraining transfer of heat emitted by the heating means to regions other than a region in which the phase control means is disposed.
    Type: Application
    Filed: December 8, 2015
    Publication date: December 7, 2017
    Applicant: NEC CORPORATION
    Inventor: Naoki KOBAYASHI
  • Publication number: 20170351563
    Abstract: The present invention makes it possible to determine whether there is actually a fault that has occurred in a situation where a specific fault state pertaining to a system to be monitored is continuously detected. An operation management device detects, using the measured value of a performance index pertaining to the system to be monitored and a correlation model representing the relationship between two mutually different performance indices, fault information indicating a fault pertaining to the combination of the two mutually different performance indices. The operation management device holds the detected fault information in chronological order, and determines, on the basis of the fault information, whether the fault information has been detected continuously with respect to a specific combination.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 7, 2017
    Applicant: NEC Corporation
    Inventors: Kiyokazu MIKI, Masanao NATSUMEDA
  • Publication number: 20170353258
    Abstract: Provided is a transmission circuit with which it is possible to facilitate error correction of burst errors without increasing the processing load in multiframes configured from a plurality of OTN frame signals. This transmission circuit is provided with: a transmission-side signal recognition unit for detecting MFAS and recognizing the order of N number of OTN frame signals; an intra-multiframe sequence conversion unit for converting the sequence of data signals inside the multiframe in response to the recognized order; a transmission-side rearranging unit for consolidating the sequentially converted data signals into lengths equal to those of the OTN frame signals and creating N number of quasi-OTN frame signals; and a transmission unit for transmitting the multiframes configured from the N number of quasi-OTN frame signals.
    Type: Application
    Filed: January 7, 2016
    Publication date: December 7, 2017
    Applicant: NEC CORPORATION
    Inventor: Yasushi HARA