Patents Assigned to Nippon Telegraph & Telephone
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Publication number: 20240152133Abstract: A threshold acquisition apparatus acquires a threshold for determining whether an anomaly score acquired from a target sound is normal or anomalous. The threshold acquisition apparatus includes: an allowable number setting unit that sets an allowable number of times such that the number of anomaly scores determined to be anomalous included in a set of anomaly scores per predetermined section length, which is a part of time-series acoustic signals that do not include an anomalous sound, does not exceed the allowable number of times; and a threshold estimation unit that estimates a threshold candidate such that the number of sections determined to be anomalous per predetermined section length, which is a part of time-series acoustic signals, satisfies a predetermined criterion by using the allowable number of times, and acquires the threshold candidate as the threshold.Type: ApplicationFiled: October 16, 2019Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shin MURATA, Yuma KOIZUMI, Noboru HARADA, Shoichiro SAITO
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Publication number: 20240155369Abstract: A communication design support apparatus includes: a propagation model storage unit configured to store a propagation model; a site survey unit configured to collect data obtained by measuring a structure; a data processing unit configured to update a parameter of the propagation model; and a radio field intensity estimation unit configured to estimate a radio field intensity in the structure by applying the propagation model having the parameter having been updated.Type: ApplicationFiled: April 5, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Minoru INOMATA, Wataru YAMADA, Nobuaki KUNO, Motoharu SASAKI
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Publication number: 20240152611Abstract: A trace information determination device includes an extraction unit that extracts a feature of malware, a classification unit that performs clustering on the basis of the feature of malware extracted by the extraction unit and classifies the malware into a predetermined cluster, an attack tendency determination unit that determines a tendency of an attack of the malware on the basis of the cluster classified by the classification unit, and a validity determination unit that determines validity of trace information generated from an activity trace of the malware on the basis of a result of determination by the attack tendency determination unit.Type: ApplicationFiled: March 16, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Toshinori USUI, Tomonori IKUSE, Yuhei KAWAKOYA, Makoto IWAMURA, Jun MIYOSHI
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Publication number: 20240152822Abstract: A learning device acquires learning data of a model predicting a label of input data including an adversarial example. The learning device performs learning of the model using a loss function that flattens a loss landscape with respect to a parameter by adding noise in which KL divergence of a loss value in the model becomes maximum to the parameter of the model and learning data including the adversarial example when the noise is added to the parameter of the model and when the noise is not added.Type: ApplicationFiled: June 17, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventor: Masanori YAMADA
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Publication number: 20240152615Abstract: An activity trace extraction device executes malware to collect an analysis log including a plurality of activity traces of the malware, and executes the malware again to collect an environment change analysis log including the plurality of activity traces of the malware assumed in a case where an execution environment of a system and a device used at execution of the malware and information unique to application software are changed. The activity trace extraction device updates, based on the analysis log and the environment change analysis log, the analysis log by removing, from the analysis log, an activity trace different from an activity trace of the environment change analysis log among the plurality of activity traces included in the analysis log. The activity trace extraction device generates trace information of the malware independent of the execution environment based on the analysis log updated.Type: ApplicationFiled: March 16, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Toshinori USUI, Tomonori IKUSE, Yuhei KAWAKOYA, Makoto IWAMURA, Jun MIYOSHI
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Publication number: 20240151909Abstract: An object of the present disclosure is to reduce transmission loss deviation between ports in an optical cross-connect device using a rotary optical switch. The present disclosure is an optical cross-connect device in which optical switches for switching a plurality of optical paths using optical fibers are connected to each other using optical paths, the optical switch collectively switches the plurality of optical paths using a rotating body, and the optical cross-connect device includes: a cross wiring part which connects an optical path having a large loss in one of the optical switches among the plurality of optical paths which are switched collectively and an optical path having a small loss in the other optical switch of the plurality of optical paths which are switched collectively to an optical path connecting the optical switches to each other.Type: ApplicationFiled: January 29, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Chisato FUKAI, Kunihiro TOGE, Tomohiro KAWANO
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Publication number: 20240152603Abstract: An activity trace extraction device executes malware to collect an analysis log including a plurality of activity traces of the malware, and executes the malware again in an environment indicating time information different from time information at the time of executing the malware to collect a time change analysis log including a plurality of activity traces of the malware. The activity trace extraction device updates the analysis log by removing, from the analysis log, the activity trace different from the activity trace of the time change analysis log among the plurality of activity traces included in the analysis log based on the analysis log and the time change analysis log. The activity trace extraction device generates trace information of the malware independent of time lapse based on the updated analysis log.Type: ApplicationFiled: March 16, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Toshinori USUI, Tomonori IKUSE, Yuhei KAWAKOYA, Makoto IWAMURA, Jun MIYOSHI
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Publication number: 20240151058Abstract: An object of the present invention is to provide a utility pole and a method for constructing the utility pole, which can simplify and improve efficiency of work at the time of new construction and replacement and can shorten a work period. The anchor has a larger diameter than a body of a utility pole on the ground and has higher ground support force. Thus, the hole for building the assembly type utility pole on the ground can be made shallower than the hole for building the utility pole in related art on the ground. The depth of the hole is shallow, so that it is possible to reduce a period for digging, reduce a probability of hitting a buried object, and reduce work for confirming a buried object. In addition, the assembly type utility pole includes a plurality of parts, and thus, only a degraded portion needs to be replaced, so that it is possible to shorten replacement work.Type: ApplicationFiled: March 16, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tatsuya MOKI, Kenji INOUE, Hidenobu HIROTA, Yoshiyasu SATO
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Publication number: 20240154976Abstract: A determination device includes processing circuitry configured to extract a series of communication logs of a same session from a communication log in which an attack is to be detected, detect a communication log of a blind attack using a URL of a request destination of the communication log and specify an attack target location of the blind attack and content of the attack from the communication log in which the blind attack has been detected, and extract communication logs in which attack target locations of the blind attack match among the extracted series of communication logs of the same session and determine that the blind attack has succeeded by communication indicated by the series of communication logs in a case where it is determined that there are a plurality of types of the content of the attack and a plurality of response status codes and response sizes.Type: ApplicationFiled: April 16, 2021Publication date: May 9, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventor: Yo KANEMOTO
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Patent number: 11974850Abstract: A nametag transmitter is a nametag transmitter that is to be attached to smartwear including an electrode for detecting biological information, the nametag transmitter including: a reception unit for receiving the biological information from the electrode; a wireless communication unit for transmitting the biological information to a data collection apparatus; a display unit for displaying identification information for specifying a user of the smartwear; and a connection portion to be attached to the smartwear. The nametag transmitter is attached to the smartwear in a state in which pairing between the wireless communication unit and the data collection apparatus has been carried out.Type: GrantFiled: July 10, 2019Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Yuzo Ishii, Toshishige Shimamura, Rena Nakatsuji, Hitoshi Okikawa, Yoshiyuki Doi, Nobutomo Yoshihashi
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Patent number: 11977045Abstract: An embodiment humidity sensor device includes a humidity sensor including a measurement section for measuring humidity, a housing accommodating the humidity sensor while the measurement section is exposed to the outside, and a wall member protruding from a bottom surface of the housing and surrounding a periphery of the measurement section.Type: GrantFiled: November 12, 2019Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Hiroto Matsuoka, Takako Ishihara
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Patent number: 11976947Abstract: A transducer includes a conductive sheet installed on a sheath of a cable, an insulative sheet installed on the conductive sheet, holes being formed in predetermined positions of the insulative sheet, and a conductive sheet installed on the insulative sheet, holes being formed in predetermined positions of the conductive sheet. The transducer has structure in which, when the cable is tightened by the screw from the top of the conductive sheet and fixed, the distal end of the screw comes into contact with the conductive sheet passing through the holes formed in the insulative sheet and the conductive sheet, and the conductive sheet and the conductive sheet are electrically connected.Type: GrantFiled: July 26, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Eri Matsunaga, Masahito Nakamura, Tadashi Minotani, Masayuki Tsuda
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Patent number: 11976993Abstract: A loosening detection structure used to detect loosening of a bolt includes a material that is disposed between a fixing subject steel plate and a head portion of a metal bolt for fixing the steel plate and either attached to a seating surface of the head portion of the bolt or attached to a washer disposed between the steel plate and the head portion of the bolt, and that has electrical characteristics that vary in response to variation in a force for fastening the bolt to the steel plate.Type: GrantFiled: November 8, 2019Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Eri Matsunaga, Tadashi Minotani, Masahito Nakamura, Masayuki Tsuda
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Patent number: 11977472Abstract: An application operation control device includes processing circuitry configured to store associated file information that indicates, in association with each other, an application and an associated file that is a file whose integrity is to be verified when integrity of the application is determined, and associated application information that indicates, in association with each other, the application and an associated application that is an application that is potentially affected when the integrity of the application is damaged, determine integrity of the associated file of the application, and in a case where, among a plurality of the associated files of the application, integrity of any of the plurality of the associated files is determined to be damaged, extract, as a target application for operation control, an application associated with an associated file the integrity of which is determined to be damaged from the associated file information.Type: GrantFiled: November 13, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Kazumi Kinoshita, Takeshi Nakatsuru
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Patent number: 11976962Abstract: An object is to provide an optical fiber path search method, an optical fiber path search system, a signal processor, and a program that can be operated free of the effects of walls, supporting members, and the like so that only a signal generated by an acoustic wave propagating through the air can be extracted.Type: GrantFiled: May 29, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yoshifumi Wakisaka, Daisuke Iida, Kunihiro Toge, Tetsuya Manabe
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Patent number: 11977315Abstract: The positions at which electrode pads are arranged can be made more flexible, and electrical interconnects to be installed can be reduced. In addition, the degree of integration of a chip increases, making it possible to realize a large-scale device (optical switch etc.). In an optical module of the present invention, an interposer (an electrical connection intermediary component with electrode pins attached onto upper and lower faces in an array) is laid over a chip that includes a device configured by using a planar lightwave circuit (PLC) fixed onto a fixing metal plate, and a control substrate for driving the device is laid over the interposer. These components are mechanically fixed by a fixing screw or the like, and the electrode pads of the chip and the control substrate are connected to each other via the interposer.Type: GrantFiled: December 11, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ai Yanagihara, Kenya Suzuki, Takashi Go, Keita Yamaguchi, Yuko Kawajiri
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Patent number: 11977450Abstract: Backup system and method that can determine a backup destination in consideration of disaster are provided. There are provided: a data acquisition unit 110 that acquires disaster information, network information, and node information; a replication group construction unit 130 that generates, based on the disaster information, and the like, replication group information including association information between a first node that stores original data and one or more second nodes that are candidates for backup destination of the original data, and saves the replication group information in a storage unit 120; a replication destination node calculation unit 140 that, when executing backup of the original data, calculates the second node as backup destination from the replication group; and a replication processing unit 230 that replicates and stores the original data into the storage of the second node.Type: GrantFiled: August 7, 2019Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Takuma Tsubaki, Ryota Ishibashi, Kotaro Ono, Yuki Nakahara, Takeshi Kuwahara, Naoki Higo, Kenta Kawakami, Yusuke Urata
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Patent number: 11976933Abstract: A link combination extraction unit (24) acquires all the combination of link candidates from among link candidates having an angle with respect to a movement direction of a pedestrian equal to or smaller than a threshold value among link candidates for n walking route networks. The link combination extraction unit (24) acquires all the combinations of link candidates that do not intersect with each other among the acquired combinations of link candidates. The link combination extraction unit (24) acquires all the combinations of link candidates that do not connect to each other among the acquired combinations of link candidates. The link combination extraction unit (24) acquires all the combinations of link candidates that are not on the same straight line among the acquired combinations of link candidates. A candidate determination unit (26) acquires a combination of link candidates closest to position information of a pedestrian when there are a plurality of acquired link candidates.Type: GrantFiled: June 11, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hirofumi Abe, Keihiro Ochiai, Hitoshi Seshimo
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Patent number: 11977282Abstract: A core, constituted by an amorphous undoped semiconductor (i type), which is formed on a lower clad layer, and a p-type layer and an n-type layer which are disposed on the lower clad layer with the core interposed therebetween and are formed in contact with the core are provided. The core is formed to be thicker than the p-type layer and the n-type layer. The p-type layer and the n-type layer are constituted by single crystal silicon.Type: GrantFiled: July 2, 2019Date of Patent: May 7, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tatsuro Hiraki, Shinji Matsuo, Tai Tsuchizawa
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Patent number: 11978443Abstract: Implemented is a communication with reasonably smooth conversation even between people having different proficiency levels in a common language. Included are a voice recognition unit (14) that acquires a speech rate of a speaker and recognizes a voice on a speech content; and a call voice processing unit (12) that processes a part of a voice recognition result based on a result of comparing the acquired speech rate with a reference speech rate, and transmits a video on which a text character image of the voice recognition result having been processed is superimposed to a communication terminal TM of the speaker.Type: GrantFiled: June 7, 2019Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Ryosuke Aoki, Munenori Koyasu, Naoki Oshima, Naoki Mukawa