NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on July 25th, 2024
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION on July 25th, 2024
NIPPON TELEGRAPH AND TELEPHONE CORPORATION: 19 patent applications
NIPPON TELEGRAPH AND TELEPHONE CORPORATION has applied for patents in the areas of H04J14/02 (2), H04B10/61 (2), H04W16/24 (2), A61M21/02 (1), G02B6/02 (1) A61M21/02 (1), H04B7/024 (1), H04W28/14 (1), H04W16/24 (1), H04L63/1416 (1)
With keywords such as: unit, optical, signal, data, device, information, processing, wave, polarized, and band in patent application abstracts.
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor(s): Hiroaki ITO of Tokyo (JP) for nippon telegraph and telephone corporation, Hironobu CHIBA of Tokyo (JP) for nippon telegraph and telephone corporation, Tatsuya KAKO of Tokyo (JP) for nippon telegraph and telephone corporation, Kenichi NOGUCHI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): A61M21/02, A61M21/00, H04S1/00, H04S7/00
CPC Code(s): A61M21/02
Abstract: the signal processing device includes: a beat sound frequency determination unit that determines an optimal beat sound frequency of a user on the basis of a brain wave signal of the user; and a binaural beat signal generation unit that acquires an ambient environment sound, converts a sample acoustic signal prepared in advance into a binaural beat, on the basis of an optimal beat sound frequency, and mixes the binaural-beat-converted sample acoustic signal with the ambient environment sound, to generate a binaural-beat-converted ambient environmental sound signal.
Inventor(s): Yusuke YAMADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masashi KIKUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Akira SAKURAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shigekatsu TETSUTANI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroaki TANIOKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01M11/00
CPC Code(s): G01M11/3109
Abstract: an object of the present invention is to provide an optical fiber testing method and an optical fiber winding device capable of appropriately reproducing the same lateral pressure and minute bending state in a test of an optical fiber as those in an optical cable.
Inventor(s): Yusuke YAMADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masashi KIKUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Akira SAKURAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shigekatsu TETSUTANI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroaki TANIOKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01M11/00
CPC Code(s): G01M11/3109
Abstract: in the optical fiber testing method according to the present invention, an optical fiber - of the second layer wound around a bobbin is used as an object to be tested. lateral pressure to the optical fiber - of the second layer is applied by an optical fiber - of the third layer. the lateral pressure is adjusted by a tension when the optical fiber - of the third layer is wound around the bobbin. in other words, since the lateral pressure is applied to the optical fiber to be tested from another optical fiber, the same lateral pressure and minute bending state as those in the optical cable can be reproduced.
Inventor(s): Shigeru Kanazawa of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yasuhiko Nakanishi of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiko Shindo of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Meishin Chin of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G02B27/10, H04J14/02
CPC Code(s): G02B27/108
Abstract: crosstalk between adjacent channels is suppressed when monitoring optical output power. a multi-channel optical module for multiplexing and outputting a plurality of wavelength channels, which includes a plurality of light sources each having a different wavelength, a plurality of collimator lenses coupled to the respective outputs of the plurality of light sources, a beam splitter coupled to an output of each of the plurality of collimator lenses, a plurality of monitor pds for monitoring optical power branched from the beam splitter, and a plurality of wavelength filters inserted between the beam splitter and each of the plurality of monitor pds and each wavelength filter transmitting only the wavelength of the light source coupled by the beam splitter.
Inventor(s): Shimpei SHIMIZU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takushi KAZAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takayuki KOBAYASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yutaka MIYAMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takeshi UMEKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G02F1/39, G02F1/35, H04B10/079, H04B10/294, H04B10/61
CPC Code(s): G02F1/392
Abstract: an optical amplification device includes: a polarization demultiplexing unit that separates an optical signal into a first polarized wave and a second polarized wave; a first optical amplification unit that amplifies the first polarized wave by using a first amplification medium; a second optical amplification unit that amplifies the second polarized wave by using a second amplification medium; a first band demultiplexing unit that demultiplexes the first polarized wave into a band component of the first polarized wave and a band component of first phase conjugate light; a second band demultiplexing unit that demultiplexes the second polarized wave into a band component of the second polarized wave and a band component of second phase conjugate light; a signal monitoring unit that measures a first optical power value of either the band component of the first polarized wave or the band component of the first phase conjugate light and a second optical power value of either the band component of the second polarized wave or the band component of the second phase conjugate light; an amplification gain control unit that controls an amplification band and gain of the first amplification medium and an amplification band and gain of the second amplification medium on the basis of the first optical power value and the second optical power value; and a polarization combination unit that multiplexes the band component of the first polarized wave and the band component of the second polarized wave not measured by the signal monitoring unit.
Inventor(s): Toshiyuki KURABAYASHI of Tokyo (JP) for nippon telegraph and telephone corporation, Yu YOSHIMURA of Tokyo (JP) for nippon telegraph and telephone corporation, Haruto TANNO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F8/30
CPC Code(s): G06F8/30
Abstract: a program generation device includes a calculation unit that calculates, for a plurality of first source codes, a similarity between the first source code and a sentence explaining a specification of a desired program in a natural language, and calculates an attention degree of each token constituting the first source code in calculation of the similarity, and a generation unit that generates a plurality of synthesis codes by synthesizing a token having a relatively high attention degree among the first source codes having a relatively high similarity with a second source code prepared in advance, thereby improving a probability that a desired program is generated.
Inventor(s): Chao WU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenichi TAYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shingo HORIUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenji MURASE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroaki KIKUSHIMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F9/455, G06F9/50
CPC Code(s): G06F9/45558
Abstract: a resource determination device according to one embodiment includes a storage unit that stores a model that indicates relationship among resource arrangement of a virtual machine, a plurality of types of processing loads of the virtual machine, and processing performance of the virtual machine, a function derivation unit that derives a function using the resource arrangement as an argument and a processing load having relatively high relevance to the processing performance as a return value, and a determination unit that calculates the processing load in the resource arrangement that is designated on the basis of the function, calculates the processing performance in the designated resource arrangement by inputting the calculated processing load to the model, and determines that the designated resource arrangement is appropriate in a case where the calculated processing performance satisfies a requirement.
Inventor(s): Daiki CHIBA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Mitsuaki AKIYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F21/55
CPC Code(s): G06F21/554
Abstract: a determination method executed by a determination apparatus includes extracting feature information from an indicator of compromise (ioc) included in information related to cyber security, imparting a label to each of iocs according to an actual result of a workload required for dealing with a relevant alert, and learning a model for outputting a label from feature information of an ioc by using learning data obtained by combining the feature information extracted with the label imparted.
Inventor(s): Daiki MICHIHIRO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F21/62
CPC Code(s): G06F21/6254
Abstract: provided is an anonymization method that maintains the utility required for analysis without impairing the value of a movement history. an anonymization device includes a poi database storage unit that stores a polygon data set serving as a set of polygon data associated with facility name data and indicating a site of a certain facility including a parking lot, a point extraction unit that extracts movement history data inside a polygon included in the polygon data set from target movement history data, the movement history data being time-series data including location information and time and being acquired for a vehicle, a point facility combination unit that refers to the poi database storage unit to combine facility name data of polygon data including the extracted movement history data with the extracted movement history data, a location information deletion unit that deletes the location information of the movement history data combined with the facility name data, and an overlapping facility deletion unit that deletes the movement history data having overlapping facility names from the movement history data from which the location information has been deleted to obtain anonymized movement history data.
Inventor(s): Takeoki LE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N5/022
CPC Code(s): G06N5/022
Abstract: a prediction device for predicting a workload of a server includes: a discrimination unit discriminating whether a variation pattern in the workload over time is only a linear pattern, only a non-linear pattern, or a linear/non-linear pattern in which the linear pattern and the non-linear pattern are mixed; and a prediction unit selecting a plurality of prediction models for linearity when the variation pattern is only the linear pattern, selecting a plurality of prediction models for non-linearity when the variation pattern is only the non-linear pattern, selecting the prediction model for linearity and the prediction model for non-linearity when the variation pattern is the linear/non-linear pattern, and deriving a future prediction value for the workload by performing an ensemble prediction combining the selected plurality of prediction models.
Inventor(s): Naomichi NAKAMURA of Tokyo (JP) for nippon telegraph and telephone corporation, Naoki HANAOKA of Tokyo (JP) for nippon telegraph and telephone corporation, Yuji HIGUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Toru TANAKA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H02H9/00
CPC Code(s): H02H9/005
Abstract: a lightning protection device for protecting a power supply device from a lightning surge current, the lightning protection device including: a plurality of lightning arresters connected between the power supply device and a ground electrode; and
Inventor(s): Takuto ARAI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Daisei UCHIDA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Tatsuhiko IWAKUNI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Shuki WAI of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B7/024, H04W28/08, H04W28/18
CPC Code(s): H04B7/024
Abstract: one aspect of the present invention is a control method in a wireless communication system including a plurality of distributed antennas that perform wireless communication with a user terminal, and a plurality of signal processing units that are connected to the plurality of distributed antennas and perform signal processing, the control method including: an initial assignment step of assigning a distributed antenna to be connected to a signal processing unit; an acquisition step of acquiring load information indicating loads of the signal processing unit; a determination step of determining whether to reassign the distributed antenna to be connected to the signal processing unit on the basis of the load information acquired in the acquisition step; and a reassignment step of performing reassignment and leveling loads of the plurality of signal processing units when it is determined to reassign in the determination step.
Inventor(s): Mitsumasa Nakajima of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Toshikazu Hashimoto of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/61
CPC Code(s): H04B10/615
Abstract: the present disclosure provides a coherent optical receiver that reproduces an optical complex signal that was used when an optical signal was generated in a coherent optical transmitter, without any use of local carrier light. the coherent optical receiver includes: an optical convolution circuit that performs optical signal processing on an optical signal received via an optical transmission line; a photodetector that converts the optical signal subjected to the optical signal processing into an electrical signal having the intensity waveform of the optical signal subjected to the optical signal processing; and a demodulation algorithm that estimates a complex time-series signal by performing digital signal processing on the electrical signal, and sets the estimated complex time-series signal as a result of reproduction of the complex time-series signal used in generating the optical signal.
Inventor(s): Chisato Fukai of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro TANIGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhide Nakajima of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ayako IWAKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takashi Matsui of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nobutomo HANZAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuto SAGAE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazutaka HARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsuko KAWAKITA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/80, G02B6/02, G02B6/04, G02B6/10
CPC Code(s): H04B10/801
Abstract: an object of the present invention is to provide an ultraviolet optical transmission system in which cutting of an optical fiber or a complicated procedure is not necessary when an optical fiber is exchanged.
Inventor(s): Chisato Fukai of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro TANIGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhide Nakajima of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ayako IWAKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takashi Matsui of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nobutomo HANZAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuto SAGAE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazutaka HARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsuko KAWAKITA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/80, G02B6/02, G02B6/04, G02B6/10
CPC Code(s): H04B10/801
Abstract: the present invention provides a system in which light with an ultraviolet band is transmitted along an optical transmission path formed of a quartz-based optical fiber, and in which an optical transmission unit is switched by a rotation mechanism in which an optical transmission path of one of an optical coupling unit rotates about an axis, the optical coupling unit including an optical transmission path including a plurality of optical transmission units on the same circumference from a center on an end surface of the optical coupling unit; an optical transmission path in which the optical transmission units are arranged on the same circumference as a circumference on which the plurality of optical transmission units are arranged; two ferrules each containing the two optical transmission paths; and a cylindrical sleeve in which the two ferrules are inserted in a hollow.
Inventor(s): Shimpei SHIMIZU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takushi KAZAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takayuki KOBAYASHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yutaka MIYAMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takeshi UMEKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04J14/02
CPC Code(s): H04J14/0209
Abstract: the present invention provides an optical amplification system () having a plurality of cascade-connected optical amplification units (), wherein the optical amplification units () comprise: a band division unit () that divides an optical signal into optical signals of two different bands; a polarized wave division unit () that divides the divided optical signals into two polarized wave components orthogonal to each other, an excitation light multiplexing unit () that multiplexes excitation light and the optical signals divided by the polarized wave division unit (); an amplification medium () that generates an optical parametric amplification and amplifies the optical signals; an excitation light division unit () that divides the excitation light and the optical signals amplified by the amplification medium (); a polarized wave synthesis unit () that synthesizes the two divided polarized wave components; and a band multiplexing unit () that multiplexes the two divided bands.
Inventor(s): Kei TAKESHITA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuji SOEJIMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L45/302, H04L45/00, H04L45/28, H04L47/125
CPC Code(s): H04L45/308
Abstract: a data generation device (path control device) is provided with a management unit that estimates and calculates a communication quality of each path in a case where a path passing through a communication device assumed to be failed is moved to a port through which a path passing through a communication device of a redundant system passes by using a communication quality estimation model that learns a relationship between a load in units of ports and a communication quality of a path caused by passing through a port, and a control unit that moves the path passing through the communication device assumed to be failed to the port of the communication device of the redundant system on the basis of the estimated and calculated communication quality of each path.
Inventor(s): Kunio MIYAMOTO of Tokyo (JP) for nippon telegraph and telephone corporation, Yuta IWAKI of Tokyo (JP) for nippon telegraph and telephone corporation, Yo KANEMOTO of Tokyo (JP) for nippon telegraph and telephone corporation, Kotomi KUROKI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L9/40
CPC Code(s): H04L63/1416
Abstract: a reception unit () receives an alert transmitted from an attack detection apparatus () that detects an attack on a monitoring target device. a generation unit () generates an acquisition condition of communication data to be acquired on the basis of the alert received by the reception unit (). an acquisition unit () acquires the communication data matching the acquisition condition generated by the generation unit () from a packet capture device () holding data transmitted and received by the monitoring target device. a success/failure determination unit () determines success or failure of an attack on the basis of the communication data acquired by the acquisition unit ().
Inventor(s): Daisuke MURAYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Shota NAKAYAMA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W16/24, H04W4/029, H04W84/00
CPC Code(s): H04W16/24
Abstract: provided is a control apparatus in a wireless communication system including the control apparatus and a plurality of base stations, the control apparatus including: an information acquisition unit that acquires position information of one or more specific priority terminals and shield sensing information; a shield map generation unit that generates a shield map based on the shield sensing information; a line-of-sight determination unit that determines whether or not there is a line of sight from an antenna of each base station to each specific priority terminal based on the position information and the shield map; and a base station control unit that controls movable base stations in the plurality of base stations such that the number of specific priority terminals in a line-of-sight state from the plurality of base stations becomes a maximum.
Inventor(s): Yuki SAKAUE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Katsuya MINAMI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tatsuya FUKUI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ryohei TSUGAMI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W28/14
CPC Code(s): H04W28/14
Abstract: an object of the present disclosure is to enable band allocation on a traffic flow basis even in a real wireless network in which a terminal repeats connection/disconnection in association with movement of a person or the like.
Inventor(s): Yuki SAKAUE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Katsuya MINAMI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tatsuya FUKUI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ryohei TSUGAMI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W28/14
CPC Code(s): H04W28/14
Abstract: the present disclosure relates to a control system for controlling traffic in a wireless network. the control system includes a controller that performs transmission control on a terminal and an access point. before the access point establishes a connection with the terminal, the controller establishes a connection with the terminal using a connection sequence according to a protocol available in the wireless network, and acquires, from the terminal, information about a node number and a flow-based buffer of the terminal. after the access point establishes a connection with the terminal, the controller performs transmission control for each traffic flow accumulated in the flow-based buffer of the terminal using the acquired information about the node number and the flow-based buffer of the terminal.
Inventor(s): Daisuke MURAYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Shota NAKAYAMA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W40/20, H04W16/18, H04W16/24, H04W40/02
CPC Code(s): H04W40/205
Abstract: a control apparatus in a communication system including the control apparatus and a mobile base station includes an information acquisition unit that acquires positional information of a specific priority terminal and obstruction sensing information, an obstruction map generation unit that generates an obstruction map based on the obstruction sensing information, a line-of-sight determination unit that determines whether there is a line-of-sight from an antenna of the mobile base station for the specific priority terminal based on the positional information and the obstruction map, and a base station control unit that controls the mobile base station so that the specific priority terminal is positioned at a line-of-sight position from the antenna in a case where communication by the specific priority terminal is not detected for a predetermined time.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on July 25th, 2024
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- A61M21/02
- A61M21/00
- H04S1/00
- H04S7/00
- CPC A61M21/02
- Nippon telegraph and telephone corporation
- G01M11/00
- CPC G01M11/3109
- G02B27/10
- H04J14/02
- CPC G02B27/108
- G02F1/39
- G02F1/35
- H04B10/079
- H04B10/294
- H04B10/61
- CPC G02F1/392
- G06F8/30
- CPC G06F8/30
- G06F9/455
- G06F9/50
- CPC G06F9/45558
- G06F21/55
- CPC G06F21/554
- G06F21/62
- CPC G06F21/6254
- G06N5/022
- CPC G06N5/022
- H02H9/00
- CPC H02H9/005
- H04B7/024
- H04W28/08
- H04W28/18
- CPC H04B7/024
- CPC H04B10/615
- H04B10/80
- G02B6/02
- G02B6/04
- G02B6/10
- CPC H04B10/801
- CPC H04J14/0209
- H04L45/302
- H04L45/00
- H04L45/28
- H04L47/125
- CPC H04L45/308
- H04L9/40
- CPC H04L63/1416
- H04W16/24
- H04W4/029
- H04W84/00
- CPC H04W16/24
- H04W28/14
- CPC H04W28/14
- H04W40/20
- H04W16/18
- H04W40/02
- CPC H04W40/205
