公开(公告)号：US10909014B2

公开(公告)日：2021-02-02

申请号：US16487169

申请日：2018-02-19

Applicant: NEC CORPORATION

Inventor： Shuichi Karino ,  Kazuhiko Isoyama ,  Yuji Kobayashi ,  Yoshiaki Sakae ,  Hiroki Tagato ,  Masato Yasuda

IPC: G06F11/30 ,  G06F11/07 ,  G06F11/34

Abstract: Provided is an information processing device which is capable of suppressing a deterioration in accuracy of detecting an anomaly and accuracy of analyzing the anomaly, while suppressing an increase in an amount of data to be stored. The information processing system includes anomaly detection unit that collects event data indicating a predetermined event detected in a process of a device to be monitored, determines whether a predetermined index value related to the event exceeds a preset first threshold, and instructs enhanced monitoring of the device to be monitored and the process related to the event when the index value exceeds the first threshold, and collection instruction unit that determines an additional event being an event to be additionally monitored when the enhanced monitoring is instructed, and instructs the device to be monitored, which is subjected to the enhanced monitoring, to monitor the determined additional event.

公开(公告)号：US10674565B2

公开(公告)日：2020-06-02

申请号：US16063561

申请日：2016-11-30

Applicant: NEC CORPORATION

Inventor： Masato Yasuda ,  Gen Motoyoshi

IPC: H04W92/18 ,  H04W76/10 ,  H04W84/20 ,  H04L29/08 ,  H04W76/30 ,  H04L12/46 ,  H04L29/06 ,  H04W84/12 ,  H04W8/00

Abstract: A delivery node alternately connects to a first wireless terminal and a second wireless terminal. When a first packet with a virtual IP address of the second wireless terminal as a destination IP address is output from a first application to a virtual network interface, the first wireless terminal encapsulates the first packet with the use of an encapsulation header and transmits to the delivery node. The delivery node encapsulates the first packet obtained by decapsulating the received encapsulation packet again, and transmits to the second wireless terminal. The second wireless terminal transmits the first packet obtained by decapsulating the received encapsulation packet to a second application through a virtual network interface.

公开(公告)号：US10270850B2

公开(公告)日：2019-04-23

申请号：US15123575

申请日：2014-03-03

Applicant: NEC Corporation

Inventor： Chaki Prakash ,  Masato Yasuda ,  Norihito Fujita

IPC: H04W84/20 ,  H04L29/08 ,  H04W8/18 ,  H04W4/06 ,  H04W12/04 ,  H04W88/04

Abstract: A method to reduce group reformation time and maintain seamless connectivity in a peer-to-peer network at the time of disappearance of the Group Owner (GO). Each of the nodes is provided with an emergency leader list which prioritizes a predetermined number of emergency leader nodes each of which is a client node having intent of acting as an emergency leader, wherein the emergency leader list is prepared right at the time of group formation. The emergency leader nodes broadcast beacons when a leader node disappears from the group without notice. Each of the client nodes barring a first-priority emergency leader node of the emergency leader list connects to a highest priority one of emergency leader nodes detected by the client node.

公开(公告)号：US10244379B2

公开(公告)日：2019-03-26

申请号：US15573659

申请日：2015-05-20

Applicant: NEC Corporation

Inventor： Prakash Chaki ,  Masato Yasuda ,  Kazuaki Nakajima

IPC: H04W8/00 ,  H04W72/12 ,  H04W76/14 ,  H04W76/11 ,  H04W28/02 ,  H04W84/18

Abstract: A method includes: performing a scan to discover at least one Peer to Peer (P2P) group; sharing a result of the scan within a first P2P group; preparing a switching schedule of the first P2P group based on the shared result; wherein the switching schedule enables a switching device to disconnect from a first owner device in the first P2P group and to connect with a second owner device in a second P2P group; sharing an information with the second P2P group by using the switching device; and performing communication among the first P2P group and the second P2P group on the basis of the information.

公开(公告)号：US10080127B2

公开(公告)日：2018-09-18

申请号：US14904036

申请日：2014-06-20

Applicant: NEC Corporation

Inventor： Masato Yasuda ,  Norihito Fujita

IPC: H04W8/00 ,  H04W4/80 ,  H04W84/20 ,  H04W88/04

CPC classification number: H04W8/005 ,  H04W4/80 ,  H04W84/20 ,  H04W88/04

Abstract: A first communication terminal, unconnected with a communication network, searches for a second communication terminal existing around the own communication terminal. In the communication network, one of communication terminals functions as a master having a function of an access point and the rest of the communication terminals function as slaves of the master. Among the one or more second communication terminals found through the search, the first communication terminal determines a second communication terminal, in which information included in a communication message received from the second communication terminal shows that it is a connected master terminal which is a terminal connected with the communication network and functions as the master, to be a connection counterpart. Then, the first communication terminal configures a network with the determined connection counterpart.

公开(公告)号：US09699821B2

公开(公告)日：2017-07-04

申请号：US15026682

申请日：2014-10-23

Applicant: NEC Corporation

Inventor： Masato Yasuda ,  Norihito Fujita

IPC: H04B7/00 ,  H04W76/02 ,  H04W84/20 ,  H04W4/00 ,  H04W84/12

CPC classification number: H04W76/027 ,  H04W4/80 ,  H04W76/14 ,  H04W76/18 ,  H04W84/12 ,  H04W84/20

Abstract: A storage part stores the history of a failure in connection to the other communication device. A searching part performs search for the other communication device. A connection availability determination part performs determination whether or not to connect to the other communication device found in the search on the basis of the history. A connection control part causes the searching part to perform the search again in a case where it is determined not to connect. On the other hand, in a case where it is determined to connect, the connection control part executes a connection process of connecting to the other communication device and, when the connection process fails, the connection control part performs update of the history and causes the searching part to perform the search again.

公开(公告)号：US09639489B2

公开(公告)日：2017-05-02

申请号：US14389807

申请日：2013-04-03

Applicant: NEC Corporation

Inventor： Jun Suzuki ,  Youichi Hidaka ,  Masato Yasuda ,  Takashi Yoshikawa ,  Junichi Higuchi

IPC: G06F3/00 ,  G06F13/38 ,  G06F13/10 ,  G06F13/40 ,  G06F13/42

CPC classification number: G06F13/385 ,  G06F13/105 ,  G06F13/4022 ,  G06F13/4221

Abstract: An I/O device sharing system characterized by comprising: an I/O device (50) shared by a plurality of hosts (20-1 to 20-N); a system manager (10) which sets the I/O device (50); a virtual bridge (40) which virtualizes the I/O device (50); and a network (3) which connects the I/O device (50), the system manager (10), the plurality of hosts (20-1 to 20-N) and the virtual bridge (40) to each other, wherein the virtual bridge (40) includes a connection virtualization unit (41) by which it is detected that an address setting of a plurality of virtual functions provided in the I/O device (50) that is set by the system manager (10) is performed, the virtual function is enabled, or both of them are performed and each host is permitted to access each virtual function.