Patents Assigned to NEC Corporations
  • Publication number: 20170245122
    Abstract: A communication method and a system are provided that make it possible to transfer information between groups. The communication method is a communication method in a wireless communication network including a plurality of nodes that can form a peer-to-peer group, wherein an owner node operating as an access point in one group selects one or a plurality of client nodes within this group as delivery nodes, the delivery node disconnects from the group and connects to another group that is present in vicinity, and information is transferred between the delivery node and an owner node of the another group.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 24, 2017
    Applicant: NEC Corporation
    Inventors: Masato YASUDA, Prakash CHAKI, Norihito FUJITA
  • Patent number: 9743286
    Abstract: A control method and device, as well as a system, are provided that make it possible to perform relocation at an appropriate timing without impairing a user's sensory feeling about use of a service. A relocation control device 301 that controls relocation of a packet network gateway 100a which provides functionality as an anchor for ensuring mobility of a mobile terminal in a mobile communication system, includes a bearer information acquisition section 311 that, when an occasion for relocation arises, acquires information to obtain importance and a use state of a communication between a mobile terminal 50 and the packet network gateway 100a, and a relocation determination section 312 that determines whether or not to perform relocation, based on the importance and the use state of the communication.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Jun Awano, Toshiyuki Tamura
  • Patent number: 9742989
    Abstract: An imaging device includes an imaging unit that is provided at a case body and images an object; an operation input unit utilized to input an imaging operation; a first instruction unit that instructs the imaging unit to execute the imaging when the imaging operation is input; a second instruction unit that instructs, based on a trigger other than the imaging operation, the imaging unit to execute the imaging; and a control unit that performs, based on a state of the case body, a control to invalidate any one of the instruction by the first instruction unit and the instruction by the second instruction unit.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Yukari Ishizuka
  • Patent number: 9740641
    Abstract: An information processing device that are capable of continuing access to an I/O device by operational computers even when a failure has occurred in a management computer is provided. A virtualization bridge (300) includes a monitoring unit (307) and a backup control unit (308). The virtualization bridge (300) provides operational computers (200) with virtual functions of an I/O device (400). The monitoring unit (307) detects failures in a management computer (100). The backup control unit (308) generates backup management information (341) on the basis of packets transmitted and received between the management computer (100) and the I/O device (400), and, when a failure in the management computer (100) is detected by the monitoring unit (307), controls the I/O device 400 on the basis of the backup management information (341) in place of the management computer (100).
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventors: Yuki Hayashi, Junichi Higuchi
  • Patent number: 9742665
    Abstract: A communication network control system (1) eliminates, in a communication network (G) in which a plurality of nodes (Ni) are connected via a plurality of links (2), a node (Nx) having a trouble and implements a reconnection in the communication network (G).
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventor: Kazunori Miyoshi
  • Patent number: 9740739
    Abstract: Systems and methods are disclosed for query processing in a big data analytics platform by enumerating plans for a current query using a processor; building a dominance graph for the current query; for each plan, determining a regret value and a score for the plan based on the regret value and cost; and selecting query plans in an online fashion for query processing in big data analytics platforms where intermediate results are materialized and can be reused later.
    Type: Grant
    Filed: October 4, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Ziyang Liu, Vahit Hacigumus
  • Patent number: 9743371
    Abstract: A control apparatus comprises: a synchronization unit that transmits control information set in a communication node to another control apparatus that operates in synchronization with the control apparatus and synchronizes with the another control apparatus; and a control information creation unit that creates control information to be set in a communication node to be controlled. If the created control information is first control information set temporarily in accordance with a notification from the communication node to be controlled, the control apparatus sets the first control information in the communication node without waiting to synchronize with the another control apparatus. If control information to be set is second control information other than the first control information, the control apparatus sets the second control information in the communication node after synchronizing with the another control apparatus.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Takahiko Murakami
  • Patent number: 9743448
    Abstract: A first radio station (1) requests or instructs a second radio station (2) to prepare for communication with a radio terminal (3) on a second cell (20) while a first radio connection on a first cell (10) with the radio terminal (3) is established. Further, the first radio station (1) instructs the radio terminal (3) or the second radio station (2) to establish a second radio connection on the second cell (20) with the radio terminal (3) while maintaining the radio connection on the first cell (10) with the radio terminal (3). It is thus for example possible to enable a single radio terminal to establish radio connections with cells of a plurality of radio stations, in order to achieve carrier aggregation of cells operated by different radio stations.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroaki Aminaka
  • Patent number: 9741143
    Abstract: A basis image is converted into a more functional image by image synthesis technology using a number of imaging devices arranged independently of each other. A multocular imaging system is provided with a plurality of imaging parts that can be arranged independently of each other, a similar component search part operable to acquire a basis image outputted from at least one imaging part of the plurality of imaging parts and a reference image outputted from another imaging part of the plurality of imaging parts and to search a similar component included in the reference image for each of components included in the basis image, and an image synthesis part operable to perform a synthesis process on at least one component included in the basis image into a desired image with reference to the similar component extracted by the similar component search part and to output the desired image as a synthesis image.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: August 22, 2017
    Assignees: NEC Corporation, Tokyo Institute of Technology
    Inventors: Shuji Senda, Akihiko Iketani, Takashi Shibata, Masatoshi Okutomi, Masayuki Tanaka
  • Patent number: 9740251
    Abstract: First and the second heat dissipation sections 120a and 120b are thermally coupled with a memory 220 and a CPU 230 mounted on a surface of a substrate 210, respectively. A frame 130 is arranged above the surface of the substrate. First and second openings 131a and 131b are formed at the positions corresponding to the positions at which the first and second heat dissipation sections 120a are provided in the frame 130. First and second elastic rubbers 150a and 150b (first and second connecting sections) are provided at periphery of the first and second openings. The first and second elastic rubbers connect the first and second heat dissipation sections and the frame, respectively. With this configuration, each of a plurality of heat-generating components is thermally coupled with each of a plurality of heat dissipation sections stably, even when the plurality of heat-generating components have different heights.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Tomoyuki Mitsui
  • Patent number: 9739684
    Abstract: A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventors: Shigeki Shinoda, Tetsuya Yoshinari, Shohei Kinoshita, Hiromi Yamamoto, Masatake Takahashi, Yasuhiro Sasaki
  • Patent number: 9742526
    Abstract: A method to process applicable to coherent optical channels with either linear or nonlinear phase noise includes: splitting a received sequence of data into clusters of points according to a cumulative log-likelihood function from constellation obtained in a previous iteration; generating new constellation points by calculating a center of mass of the clusters of points; repeating until convergence or until a predetermined number of iterations has been reached to determine a signal constellation; and transmitting signals over the coherent optical channels with nonlinear phase noise using the disclosed signal constellation and LDPC-coded modulation concepts.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Ivan Djordjevic, Ting Wang
  • Patent number: 9743336
    Abstract: The present invention has the object of forwarding packets according to a road line without using road line information while preventing unnecessary forwarding of packets.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Hideaki Takahashi
  • Patent number: 9740534
    Abstract: A system for controlling the resources includes a control pattern generation unit for generating a plurality of control patterns from a virtual system model, produced by modeling the behaviors of a network element and a server of a virtual system operating on a virtual datacenter, and from a resource allocation change policy stipulating a policy or policies of change of allocation of resources to the virtual systems. The control patterns prove candidates for control commands to network resources and server resources of the virtual systems. The system for controlling the resources also includes a control unit for carrying out prediction of a service level, using the control patterns, selecting such control pattern that satisfies the service level of the virtual systems and that also satisfies a preset standard or reference for selection, from among the control patterns, with the use of the result of prediction, and putting the control pattern selected to use.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Seiichi Koizumi
  • Patent number: 9740575
    Abstract: Provided are a system design method, a system design system, and a system design reform assistance program. A system design apparatus includes a unit for receiving an analysis model which represents a system failure restoration sequence, a unit for identifying, from the received analysis model, a minimum combination of component failure which does not satisfy either a restoration time requisite or a necessary cost requisite and a unit for outputting the identified minimum combination of component failure. The unit for identifying the minimum combination of component failure further includes a unit for estimating the restoration time of a system, and a unit for estimating the cost required for restoration of the system.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Kumiko Tadano
  • Patent number: 9742041
    Abstract: An object of the present invention is to provide a battery system improved in output characteristics and/or storage characteristic while taking advantage of high energy density of a lithium ion secondary battery comprising a positive electrode containing a positive electrode active material having an operating potential of 4.5 V or more relative to a lithium metal. The present invention relates to a battery system having a first battery consisting of a 5 V-level battery(s), a second battery consisting of a 4 V-level battery(s), and a control system.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Hideaki Sasaki, Takehiro Noguchi, Yuukou Katou, Makiko Takahashi
  • Patent number: 9742489
    Abstract: Systems and methods are disclosed for data communication by forming a hybrid that includes an electrical switching network with packet granularity of switching and store-and-forward forwarding services to network traffic and an optical switching network providing circuit granularity of switching and optical bypassing services to network traffic; applying local control of optical switching modules in the optical switching network with a network controller coupled to the electrical switching network, the optical switching network, and a loss-of-light detection module; and detecting loss-of-light in a failure point in the optical switching network and rerouting traffic to avoid the optical failure point.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 22, 2017
    Assignee: NEC Corporation
    Inventors: Yawei Yin, Konstantinos Kanonakis, Philip Ji, Ting Wang, Shinya Nakamura
  • Patent number: 9742832
    Abstract: Disclosed is a transmission apparatus or the like that is able to transmit information efficiently. The transmission apparatus, on the basis of history information which includes a service identifier and a message identifier associated therewith, transmits a difference between a third message having a large similarity ratio to a second message included in a specific service and the second message, and a message identifier identifying the second message via a communication network.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Kyohei Ando
  • Patent number: 9743410
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Kenji Koyanagi, Le Liu, Yoshikazu Kakura
  • Publication number: 20170238193
    Abstract: A base station (13) is configured to receive, from a Machine-to-machine (M2M) terminal (11) or a core network (14), history information indicating whether or not specific coverage enhancement processing was executed in previous communication with the M2M terminal (11). Further, the base station (13) is configured to control communication using the specific coverage enhancement processing between the M2M terminal (11) and the base station (13) based on the history information received from the M2M terminal (11) or the core network (14). It is thus possible to contribute to improving efficiency of determination regarding whether to apply a special coverage enhancement processing to the M2M terminal.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Applicant: NEC Corporation
    Inventor: Hisashi FUTAKI