NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on August 8th, 2024
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION on August 8th, 2024
NIPPON TELEGRAPH AND TELEPHONE CORPORATION: 30 patent applications
NIPPON TELEGRAPH AND TELEPHONE CORPORATION has applied for patents in the areas of G06T7/11 (2), A61B3/113 (1), H04W64/00 (1), G16H20/70 (1), H04L51/02 (1) A61B3/113 (1), G06T17/00 (1), H04N7/0806 (1), H04L63/1425 (1), H04L45/74 (1)
With keywords such as: unit, data, device, optical, information, communication, object, value, point, and user in patent application abstracts.
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor(s): Naoki SAIJO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): A61B3/113
CPC Code(s): A61B3/113
Abstract: a motion performance estimation device obtains and outputs an index representing motion performance of a subject on the basis of a difference in a feature amount based on a microsaccade between the subject performing a task according to movement of a first object and the subject performing a task according to movement of a second object. however, the size of the visual angle formed by the first object and the size of the visual angle formed by the second object in the eye of the subject are different.
Inventor(s): Yujiro Tanaka of Tokyo (JP) for nippon telegraph and telephone corporation, Daichi Matsunaga of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): A61B5/01, A61B5/024, G01K13/20
CPC Code(s): A61B5/01
Abstract: a temperature estimation system includes a temperature sensor for measuring a temperature of a surface of a living body, a temperature sensor for measuring a temperature inside a heat insulation material, a temperature sensor for measuring a temperature of the surface of the living body at a position remote from the temperature sensor, a learner for estimating a proportional coefficient associated with a thermal resistance of the living body on the basis of measurement results of the temperature sensors, and a temperature calculation unit for calculating a core body temperature of the living body on the basis of measurement results of the temperature sensors and the proportional coefficient
Inventor(s): Sosuke IMAMURA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhiro TAKAYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): C12N1/12, C12P7/64, C12P19/04
CPC Code(s): C12N1/12
Abstract: a technique capable of achieving production of a biological material using photosynthetic microorganisms at low cost is provided. a method of producing a biological material includes culturing a photosynthetic microorganism in a culture medium containing dimethyl 2-oxoglutarate, and then collecting a substance produced by or accumulated in the photosynthetic microorganism.
Inventor(s): Sohan Kawamura of Tokyo (JP) for nippon telegraph and telephone corporation, Eiko Sato of Tokyo (JP) for nippon telegraph and telephone corporation, Takashi Sakamoto of Tokyo (JP) for nippon telegraph and telephone corporation, Soichi Oka of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): C30B13/24, C30B13/32
CPC Code(s): C30B13/24
Abstract: an embodiment crystal growing apparatus is an apparatus that grows a crystal of a raw material by heating and melting, with a heating mechanism, one end side of a raw material body formed with a solid raw material with which a seed crystal is in contact, and further includes a laser mechanism. in crystal growth using this crystal growing apparatus, the portion to be heated for forming a melt is moved in the direction toward the other end side of the raw material body, and the melt is irradiated and heated with laser light emitted from the laser mechanism while the melt is moved from the one end side to the other end side.
Inventor(s): Tomokazu ODA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsushi NAKAMURA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yusuke KOSHIKIYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nazuki HONDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01M11/02
CPC Code(s): G01M11/02
Abstract: an object is to provide an optical fiber test method and an optical fiber test device capable of acquiring a maximum loss of a higher-order mode at a connection point of an optical fiber transmission line through which a plurality of modes propagate.
Inventor(s): Tomokazu ODA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsushi NAKAMURA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yusuke KOSHIKIYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nazuki HONDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01M11/02
CPC Code(s): G01M11/02
Abstract: the optical fiber test device according to the present invention includes: a light source unit that allows probe light l, which has a tunable wavelength and is continuous light, to enter one end t of an optical fiber in a fundamental mode and allows pulsed pump light l, which is shifted to a high frequency side by a frequency at which a brillouin interaction occurs with respect to the probe light l, to enter the other end t of the optical fiber in a higher-order mode as a measurement target; and an analysis unit that acquires, from a light intensity of the probe light l amplified by the pump light l, a time waveform of an amplification component, calculates a connection loss of the pump light l at a connection point from a ratio of the amplification components before and after the connection point, acquires a wavelength dependency of the connection loss, detects a maximum value of the connection loss from the wavelength dependency of the connection loss, and sets the maximum value as a maximum loss of the higher-order mode at the connection point.
Inventor(s): Hisatoshi KASAHARA of Tokyo (JP) for nippon telegraph and telephone corporation, Yosuke TAKEUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Yosuke OKAMURA of Tokyo (JP) for nippon telegraph and telephone corporation, Junichiro TAMAMATSU of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01N33/38, G01N3/20
CPC Code(s): G01N33/383
Abstract: a method of producing a resin concrete deterioration model, a method of predicting deterioration of resin concrete, and a resin concrete deterioration model are provided. the method of producing a resin concrete deterioration model adds water to a precursor of resin concrete containing a thermosetting resin, calcium carbonate, and aggregate and kneads the mixture. the resin concrete deterioration model includes a thermosetting resin, calcium carbonate, an aggregate, and water.
Inventor(s): Tatsuya FUJIMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Chisato FUKAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro KAWANO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroshi WATANABE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhide NAKAE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazunori KATAYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G02B6/35
CPC Code(s): G02B6/3504
Abstract: an object of the present disclosure is to provide an optical switch that does not require power supply. the present disclosure provides an optical switch which includes: a light driving rotation unit including: a light-expansion body which expands by irradiating light and contracts by interrupting light; a knock rod for converting expansion/contraction of the light-expansion body into reciprocating linear motion by a constant distance; and a rotary motion body for correspondingly converting reciprocating linear motion by the constant distance of the knock rod into rotating rotary motion by a constant angle; and a optical switching rotation unit including: a first optical connector to which one switching object optical fiber is fixed; a second optical connector to which an optical fiber of a switching object optical fiber group is respectively fixed; and a connecting rotor for rotating around an axis in synchronization with rotation converted by the rotary motion body, and for switching/connecting one switching object optical fiber fixed to the first optical connector in contact with one end face and one optical fiber in the switching object optical fiber group fixed to the second optical connector in contact with other end face
Inventor(s): Shmuel UR of Galil (IL) for nippon telegraph and telephone corporation, Ziv GLAZBERG of Ramat Gan (IL) for nippon telegraph and telephone corporation, Ran LEHR of Tel-Aviv (IL) for nippon telegraph and telephone corporation, Erez KEINAN of Rishon Le-zion (IL) for nippon telegraph and telephone corporation
IPC Code(s): G06F8/33, G06F8/51
CPC Code(s): G06F8/33
Abstract: an autocomplete apparatus includes a memory and a processor configured to output a suggestion of a low-level language code corresponding to a high-level language code when a programmer converts the high-level language code into the low-level language code; and perform learning based on whether the suggestion is adopted by the programmer.
Inventor(s): Nobukazu FUKUDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Chao WU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shingo HORIUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenichi TAYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F16/22
CPC Code(s): G06F16/2228
Abstract: a data processing device of the embodiment includes a storage circuit and a processor. the storage circuit is capable of storing a first template. the processor executes analysis processing on input log data. in the analysis processing, the processor divides the log data into tokens (unigrams), each of the tokens including a word and position information of the word, computes a similarity sim on the basis of the number of tokens common to the log data and the first template and the number of tokens of the first template, and updates the first template on the basis of the similarity sim.
Inventor(s): Kenta NIWA of Tokyo (JP) for nippon telegraph and telephone corporation, Hiroshi SAWADA of Tokyo (JP) for nippon telegraph and telephone corporation, Akinori FUJINO of Tokyo (JP) for nippon telegraph and telephone corporation, Noboru HARADA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F30/27
CPC Code(s): G06F30/27
Abstract: a technique for stably optimizing a variable of model so as to conform the learning data set is provided, even when there is a statistical deviation in a learning data set distributed and accumulated in a plurality of nodes, or communication between nodes is asynchronous and sparse. the i-th node includes a model variable update unit that updates a value of a model variable wby an expression using a control variable in a stochastic variance reduced gradient method, a first dual variable update unit that updates a value of a dual variable yby a predetermined expression with respect to a predetermined index j, a second dual variable update unit that receives a value of the model variable wand a value of the dual variable yfrom the j-th node and updates a value of the dual variable zand a value of the global control variable cby a predetermined expression, and a local control variable update unit that update a value of a local control variable cand a temporary variable uof the i-th node by a predetermined expression when execution of update processing is the k-th in the r-th round.
Inventor(s): Fumika ASAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Norio YAMAMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Haruhisa NOZUE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shunsuke KANAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenichi TAYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F40/247, G06F40/253, G06F40/279
CPC Code(s): G06F40/247
Abstract: a judgement device according to an embodiment includes an acquisition unit, a determination unit, a judgement unit, and an update unit. the acquisition unit acquires data of a sentence consists of at least two words. the determination unit determines a verb and an object word from among words included in the data. the judgement unit refers to group label information indicating which of a verb or an object word a word included in a label representing a sentence representative of a group including one or more sentences having the same meaning corresponds to, and judges which label a synonym of the determined verb and a synonym of the object word correspond to. the update unit associates a sentence with a judged label and updates the group label information when it is possible to judge which label a synonym of a verb and a synonym of an object word correspond to.
Inventor(s): Ryosuke SATO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kei TAKESHITA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsushi TAKADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Mizuto NAKAMURA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N7/01
CPC Code(s): G06N7/01
Abstract: an information processing device detects data errors in a bayesian network. the information processing device includes a calculation unit that calculates kendall's coefficient of concordance for a determination tendency of each node based on observed information input to nodes in the bayesian network; and an output unit that outputs a determination result that the data includes an error when the kendall's coefficient of concordance is lower than a threshold. the calculation unit obtains a ranking of a posterior probability value of a child node for each node in the bayesian network based on the observed information, and calculates kendall's coefficient of concordance for the obtained ranking.
Inventor(s): Shmuel UR of Galil (IL) for nippon telegraph and telephone corporation, Ziv GLAZBERG of Ramat Gan (IL) for nippon telegraph and telephone corporation, Ran LEHR of Tel-Aviv (IL) for nippon telegraph and telephone corporation, Erez KEINAN of Rishon Le-zion (IL) for nippon telegraph and telephone corporation
IPC Code(s): G06Q10/0639, G06Q10/067
CPC Code(s): G06Q10/06395
Abstract: a quality management apparatus includes a processor configured to collect work information of a plurality of workers who perform software development; create a base model serving as a base for evaluation of work quality on the basis of the work information of the plurality of workers; and evaluate work quality of a worker on the basis of the base model and a model based on work information of the worker.
Inventor(s): Issei WAKUI of Tokyo (JP) for nippon telegraph and telephone corporation, Yasuhiro MATSUMOTO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06T7/11, G01S17/894
CPC Code(s): G06T7/11
Abstract: an analysis device () according to the present invention includes a 3d point cloud data input unit () that receives point cloud data inside a structure measured by a laser scanner, a first analysis unit () that removes point cloud data other than that of a structure evaluation object from the point cloud data, and a second analysis unit () that extracts point cloud data of a place necessary for structure evaluation.
Inventor(s): Yujin HAMANO of Tokyo (JP) for nippon telegraph and telephone corporation, Kazuaki WATANABE of Tokyo (JP) for nippon telegraph and telephone corporation, Daisuke UCHIBORI of Tokyo (JP) for nippon telegraph and telephone corporation, Yosuke SAKURADA of Tokyo (JP) for nippon telegraph and telephone corporation, Atsushi ARATAKE of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06T7/60
CPC Code(s): G06T7/60
Abstract: a deterioration determination device () according to the present disclosure includes an input unit () that receives an input of image data indicating an image including a figure of an inspection object, a correction unit () that generates a corrected image in which the image is corrected to increase an aspect ratio of a region surrounding the figure of at least some inspection object included in the image, a target region extraction unit () that extracts, from the corrected image, a target region indicating the figure of the inspection object included in the corrected image, a deterioration region detection unit () that detects a deterioration region indicating a figure of a deterioration portion of the inspection object from the corrected image, and a determination unit () that determines a deterioration degree of the inspection object based on the target region and the deterioration region.
Inventor(s): Yoshinari SHIRAI of Tokyo (JP) for nippon telegraph and telephone corporation, Yasue KISHINO of Tokyo (JP) for nippon telegraph and telephone corporation, Sanae FUJITA of Tokyo (JP) for nippon telegraph and telephone corporation, Tessei KOBAYASHI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06T11/00, G06F3/04842
CPC Code(s): G06T11/001
Abstract: a word evaluation value acquisition method, including a document display step in which a display unit displays a document composed of a plurality of sentences, a word selection reception step in which an input unit receives selection of a word included in the document, a word evaluation reception step in which the input unit receives an evaluation result indicating any of the plurality of index values with respect to a selected word that is the word whose selection has been received in the word selection reception step, and a decoration step in which the display unit applies a decoration allocated to an index value corresponding to the evaluation result received in the word evaluation reception step to the selected word and a word having the same spelling as the selected word included in the document.
Inventor(s): Mayuko WATANABE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ryuichi TANIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Isamu IGARASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hideaki KIMATA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06T17/00, G06T7/11, G06T9/00, G06T9/40
CPC Code(s): G06T17/00
Abstract: a point cloud data processing device includes: a point cloud data storage unit that stores a plurality of pieces of point cloud data measured at an arbitrary measurement time at a plurality of measurement positions in a three-dimensional space; and a merged point cloud data generation unit that generates merged point cloud data in a time-series order based on the point cloud data stored in the point cloud data storage unit, the merged point cloud data including the point cloud data corresponding to any one of the measurement times, location data indicating a location of a point when pieces of point cloud data measured before the measurement time were integrated in a time-series order, and reference data assigned to each piece of location data, for specifying the point cloud data including the point indicated by the location data
Inventor(s): Tsuneko Kura of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Naoko KOSAKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Akira KOYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroshi MATSUBARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Jun KATO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G08B31/00
CPC Code(s): G08B31/00
Abstract: a past disaster information storage section () that stores disaster information related to a disaster that has occurred in the past and a disaster information acquisition section () that acquires current disaster information related to a disaster that has occurred this time are included. a disaster prediction section () that predicts future disaster information caused by a disaster that has occurred this time on the basis of current disaster information acquired by the disaster information acquisition section () and past disaster information stored in the past disaster information storage section (), and a display control section () that displays an image in which the current disaster information and the future disaster information are superimposed are further included.
Inventor(s): Tae SATO of Tokyo (JP) for nippon telegraph and telephone corporation, Naoto ABE of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G16H20/70, H04L51/02
CPC Code(s): G16H20/70
Abstract: conventionally, a provider has prepared a plurality of motivational messages for implementing a predetermined activity such as a health activity and provided a predetermined motivational message to the user so that the user does not get bored. an object of the present invention is to provide a motivational message aligned with a user's propensity to think, while suppressing the load on a provider of the motivational message.
Inventor(s): Tae SATO of Tokyo (JP) for nippon telegraph and telephone corporation, Naoto ABE of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G16H20/70, H04L51/02
CPC Code(s): G16H20/70
Abstract: the present invention is a message providing device that provides a user with a motivational message for initiating a predetermined activity, wherein a motivational message is generated by using input data indicating a current deprecated activity of the user, the effect of the deprecated activity, a recommended activity, and the effect of the recommended activity, and supplementing a component of a message stored in advance.
20240266420. SEMICONDUCTOR DEVICE_simplified_abstract_(nippon telegraph and telephone corporation)
Inventor(s): Yuki Yoshiya of Tokyo (JP) for nippon telegraph and telephone corporation, Takuya Hoshi of Tokyo (JP) for nippon telegraph and telephone corporation, Hiroki Sugiyama of Tokyo (JP) for nippon telegraph and telephone corporation, Hideaki Matsuzaki of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H01L29/66, H01L29/20, H01L29/207, H01L29/778
CPC Code(s): H01L29/66462
Abstract: this semiconductor device includes a substrate, a buffer layer formed on the substrate, a first semiconductor layer formed on the buffer layer, a second semiconductor layer formed on the first semiconductor layer, and a channel layer and a barrier layer formed on the second semiconductor layer. the substrate includes a nitride semiconductor doped with impurities to have semi-insulating properties or high resistance, the buffer layer includes gan, the first semiconductor layer includes gan doped with an acceptor, and the second semiconductor layer includes algan.
Inventor(s): Meishin Chin of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiko Shindo of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shigeru Kanazawa of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H01S5/026, H01S5/10, H01S5/50
CPC Code(s): H01S5/0265
Abstract: a problem is addressed by suppressing a decrease in a laser output due to an optical axis deviation between a laser portion waveguide and an ea portion waveguide in a semiconductor laser. the configuration of the present invention has a structure in which a spot size converter of a passive waveguide is integrated between a laser and an ea of an eadfb laser. a feature of the spot size converter is a configuration having an enlarged taper/a straight waveguide/a reduced taper, in which aspect ratios of the tapers are the same. further, by providing the spot size converter between an ea and an soa (semiconductor optical amplifier), it is possible to apply the spot size converter to an axel (semiconductor optical amplifier extended reach ea-dfb).
Inventor(s): Riichi KUDO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomoki Murakami of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kahoko TAKAHASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomoaki Ogawa of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B7/0452, H04L5/00, H04W64/00
CPC Code(s): H04B7/0452
Abstract: provided is a management device that performs wireless communication with a fixed terminal fixed in an environment, or performs wireless communication with the fixed terminal and a position estimation target, and manages a state of a wireless communication unit that performs wireless communication. the management device includes one or more wireless communication units that receive a wireless signal from a wireless communication unit, an input feature generation unit that converts channel information corresponding to the plurality of wireless communication units into a plurality of input features that can be input to a machine learning model, a position estimation model utilization unit that estimates and calculates a position of the position estimation target, and a model evaluation unit that outputs identification of whether or not an abnormality has occurred in any one of the wireless communication units.
Inventor(s): Kota ITO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Mizuki SUGA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Takuto ARAI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yushi SHIRATO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Naoki KITA of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/2513, H04B10/2575
CPC Code(s): H04B10/2513
Abstract: a wireless communication method in a wireless communication system including an accommodation station device and a base station device that performs beam formation according to control of the accommodation station device, includes: transmitting an optical modulation signal generated by performing intensity modulation on an optical signal on the basis of a transmission signal to be transmitted to the base station device via an optical transmission line by the accommodation station device controlling any combination of a light wavelength, a frequency, or an optical polarized wave, or a plurality of frequencies or a plurality of light wavelengths, to perform beamforming control of the base station device; transmitting the optical modulation signal after dispersion compensation is performed in an electrical domain or an optical domain in the accommodation station device or performing dispersion compensation on the optical modulation signal on the optical transmission line; and inputting, by the base station device, an electrical signal based on the dispersion-compensated optical modulation signal to a beamforming circuit having a plurality of input ports to perform beam formation in a direction corresponding to an input port to which the electrical signal is input.
Inventor(s): Masanori NAKAMURA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Takayuki KOBAYASHI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yoshiaki KISAKA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yutaka MIYAMOTO of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/61
CPC Code(s): H04B10/6161
Abstract: a receiver convolves an impulse response for compensating for frequency characteristics and a complex impulse response for wavelength dispersion compensation with each of a real component and an imaginary component of each polarized wave of a reception signal. for each polarized wave, the receiver performs complex signal processing of multiplying the imaginary component by the imaginary unit, then branching the resulting component, and adding one imaginary component to the real component. for each polarized wave, the receiver uses, as input signals, the real component and the imaginary component of each polarized wave after complex signal processing and the phase conjugates of them. for each polarized wave, the receiver adds a signal obtained by a process in which each of the real component and the imaginary component of each polarized wave is multiplied by a complex impulse response, the resulting components are added, and a phase rotation is applied and a signal obtained by a process in which each of the phase conjugate of the real component and the phase conjugate of the imaginary component of each polarized wave is multiplied by a complex impulse response, the resulting components are added, and an opposite phase rotation is applied, and adds a transmission data bias correction signal.
Inventor(s): Tomoya KOSUGI of Tokyo (JP) for nippon telegraph and telephone corporation, Shinichi YOSHIHARA of Tokyo (JP) for nippon telegraph and telephone corporation, Akihiro MORITA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L12/46, H04L45/28
CPC Code(s): H04L12/4641
Abstract: a communication device () according to the present disclosure includes a selection list creation unit () that creates a selection list including identifiers and weight reference values of a plurality of communication devices configuring multihoming based on the identifiers of the plurality of communication devices configuring the multihoming and the weight reference value according to a communication state of each of the plurality of communication devices configuring the multihoming notified of by another device, and a selection unit () that selects a designated forwarder (df) and a backup df (bdf) from the created selection list based on a predetermined condition based on the weight reference value.
Inventor(s): Hiroaki MATSUBAYASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shunsuke KANAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenji MURASE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masataka SATO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuaki AKASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Manami OGAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L41/0659, H04L41/0686
CPC Code(s): H04L41/0661
Abstract: a network management device includes a priority calculation unit to apply, to a situation in which, when a failure in communication occurs in a plurality of buildings that houses a communication facility. when a condition in which the failure that occurred is assumed to be restored regarding a plurality of combinations of some buildings among the buildings in which the failure has occurred by performing restoration on the communication facility housed in the building is applied, the failure in communication continuously occurs in a building that houses a communication facility used for providing a predetermined type of communication service among the plurality of buildings, a policy that defines weighting corresponding to the situation and calculate, for each of the plurality of combinations, priority of a possible combination of buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.
Inventor(s): Go Yazawa of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiro Kubo of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Natsuki YASUHARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shinichi YOSHIHARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L45/74
CPC Code(s): H04L45/74
Abstract: an information processing device according to an embodiment is a communication apparatus that is connected to a user apparatus via an access port and transmits user data from the user apparatus to another user apparatus connected to another communication apparatus via a network, and includes an acquisition function unit and an advertisement function unit. the acquisition function unit acquires a mac address of a newly connected user apparatus in response to reception of a request for acquiring the mac address of the user apparatus newly connected to the access port. the advertisement function unit advertises the mac address acquired by the acquisition function unit to the other communication apparatus.
Inventor(s): Yasuhiro TERAMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masanori YAMADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuki YAMANAKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomokatsu TAKAHASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro NAGAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takaaki KOYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L9/40, G06N20/00
CPC Code(s): H04L63/1425
Abstract: a detection device includes a feature value database configured to store a packet feature value, a label assigned to each packet feature value, and a threshold used for determination in advance. the detection device includes a memory and a processor coupled to the memory. the processor is configured to perform operations including: converting a target packet into a feature value using a first natural language processing model that has been trained using normal communication packets as learning data; assigning a label to the feature value converted using the first natural language processing model, based on the feature value converted using the first natural language processing model and the data stored in the feature value database; and determining whether the target packet has an anomaly based on the assigned label.
Inventor(s): Yasuhiro MOCHIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takuro YAMAGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Daisuke SHIRAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiro YAMAGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04N7/08, H04N7/01
CPC Code(s): H04N7/0806
Abstract: a transmission device includes: an sdi input unit that inputs a plurality of sub-pictures obtained by dividing a picture from a plurality of links of an sdi; a mapping management unit that selects an st 2110 mapping scheme for pixel data to a packet on the basis of a combination of an sdi mapping scheme for the pixel data in the sdi and the rp 2110-23 compatibility; and an st 2110 output unit that stores the pixel data of the picture in the packet in accordance with the st 2110 mapping scheme and outputs the packet. a reception device includes: an st 2110 input unit that inputs a packet in which pixel data is stored; a mapping management unit that selects an sdi mapping scheme for the pixel data to a plurality of links of an sdi on the basis of a combination of an st 2110 mapping scheme for the pixel data in the packet and the rp 2110-23 compatibility; and an sdi output unit that outputs the pixel data of the picture from the plurality of links of the sdi in accordance with the sdi mapping scheme.
Inventor(s): Shohei KODAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroshi Yoshida of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nobuyuki CHIWATA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W8/18, H04W24/08
CPC Code(s): H04W8/18
Abstract: an access network device according to an embodiment is an access network device that is disposed between a plurality of user-side terminals and a core network, provides the plurality of user-side terminals with connection to the core network, and includes an important user determination unit and an order processing unit. the important user determination unit acquires and accumulates user state information indicating a state of each user-side terminal, acquires user characteristic information indicating a characteristic of each user-side terminal from the accumulated past user state information, and determines an important user related to human life and/or safety on the basis of the acquired user characteristic information. the order processing unit preferentially processes a processing order related to the user-side terminal corresponding to the user determined to be an important user by the important user determination unit among a plurality of processing orders indicating a processing operation of the access network device related to each of the plurality of user-side terminals transmitted when a management device that manages the access network device returns from a non-operating state to an operating state.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on August 8th, 2024
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- A61B3/113
- CPC A61B3/113
- Nippon telegraph and telephone corporation
- A61B5/01
- A61B5/024
- G01K13/20
- CPC A61B5/01
- C12N1/12
- C12P7/64
- C12P19/04
- CPC C12N1/12
- C30B13/24
- C30B13/32
- CPC C30B13/24
- G01M11/02
- CPC G01M11/02
- G01N33/38
- G01N3/20
- CPC G01N33/383
- G02B6/35
- CPC G02B6/3504
- G06F8/33
- G06F8/51
- CPC G06F8/33
- G06F16/22
- CPC G06F16/2228
- G06F30/27
- CPC G06F30/27
- G06F40/247
- G06F40/253
- G06F40/279
- CPC G06F40/247
- G06N7/01
- CPC G06N7/01
- G06Q10/0639
- G06Q10/067
- CPC G06Q10/06395
- G06T7/11
- G01S17/894
- CPC G06T7/11
- G06T7/60
- CPC G06T7/60
- G06T11/00
- G06F3/04842
- CPC G06T11/001
- G06T17/00
- G06T9/00
- G06T9/40
- CPC G06T17/00
- G08B31/00
- CPC G08B31/00
- G16H20/70
- H04L51/02
- CPC G16H20/70
- H01L29/66
- H01L29/20
- H01L29/207
- H01L29/778
- CPC H01L29/66462
- H01S5/026
- H01S5/10
- H01S5/50
- CPC H01S5/0265
- H04B7/0452
- H04L5/00
- H04W64/00
- CPC H04B7/0452
- H04B10/2513
- H04B10/2575
- CPC H04B10/2513
- H04B10/61
- CPC H04B10/6161
- H04L12/46
- H04L45/28
- CPC H04L12/4641
- H04L41/0659
- H04L41/0686
- CPC H04L41/0661
- H04L45/74
- CPC H04L45/74
- H04L9/40
- G06N20/00
- CPC H04L63/1425
- H04N7/08
- H04N7/01
- CPC H04N7/0806
- H04W8/18
- H04W24/08
- CPC H04W8/18
