NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on January 2nd, 2025
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION on January 2nd, 2025
NIPPON TELEGRAPH AND TELEPHONE CORPORATION: 34 patent applications
NIPPON TELEGRAPH AND TELEPHONE CORPORATION has applied for patents in the areas of G01D5/353 (2), G06N7/01 (2), H04W28/02 (1), H04N21/234 (1), H04N13/194 (1) G06N7/01 (2), A61L9/205 (1), G10L15/32 (1), H04W74/04 (1), H04W52/0235 (1)
With keywords such as: unit, device, information, signal, optical, radio, data, light, communication, and source in patent application abstracts.
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor(s): Asuka MIYAKE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hitoshi SISHIMO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ryuji YAMAMOTO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro TANIGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ayako IWAKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Satoshi NARIKAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahito KIRIHARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhide NAKAJIMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takashi MATSUI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuto SAGAE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Chisato FUKAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Nobutomo HANZAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): A61L9/20, F24F8/167, F24F8/22
CPC Code(s): A61L9/205
Abstract: an object of the present invention is to provide an air conditioner unit that can fully demonstrate the sterilization effect on air with a large flow rate, even by a method of irradiating a filter and a coil with ultraviolet light. the air conditioner unit according to the present invention includes a filter through which air passes, a plurality of optical fibers arranged in such a manner that one ends thereof are close to a surface of the filter and arranged at predetermined intervals, and a light source that supplies ultraviolet light from the other end of each of the optical fibers . since the intensity of the light is inversely proportional to the square of the distance from the light source, if the same sterilization effect is to be obtained, the shorter the irradiation distance, the smaller the irradiation intensity of the ultraviolet light can be. that is, by bringing the tips of the optical fibers close to the surface of the filter, the filter can be sterilized by an led having a small output.
Inventor(s): Sayumi Sato of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuya Uzumaki of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Akihiro Kono of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takeshi Komatsu of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): C25B11/031, C25B3/26, C25B9/19, C25B11/052
CPC Code(s): C25B11/031
Abstract: a porous electrode-supported electrolyte membrane used in a gas phase reduction device for reducing carbon dioxide includes an electrolyte membrane and a porous reduction electrode bonded to the electrolyte membrane, and a surface of a hole of the porous reduction electrode is coated with a conductive first plating film.
Inventor(s): Hiroaki Taguchi of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takeshi Komatsu of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Mikayo Iwata of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masaya Nohara of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Shuhei Sakamoto of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Sho Okubo of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01C9/18, G01C9/06, H01M6/12
CPC Code(s): G01C9/18
Abstract: an inclination sensor includes a notification unit that notifies occurrence of inclination of a structure, a water storage tank that contains an electrolytic solution, and a primary battery including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. in the inclination sensor, when the water storage tank is inclined with the inclination of the structure, an electrolytic solution is injected into the separator, and the primary battery starts power generation and supplies electric power necessary for driving the notification unit.
Inventor(s): Shingo ONO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01D5/353, G01K11/32
CPC Code(s): G01D5/35329
Abstract: according to the present disclosure, there is provided an optical fiber sensing device including: a reference interferometer for producing a predetermined difference in propagation delay time in continuous light; a sensor interferometer including a plurality of mach-zehnder interferometers having unilateral optical paths functioning as sensor units; and a signal processing unit for performing signal processing by using a light reception signal i(t) obtained by receiving light transmitting through the sensor interferometer and a reference signal i(t) obtained by receiving light transmitting through the reference interferometer, in which the signal processing unit calculates a cross-correlation rbetween the light reception signal i(t) and the reference signal i(t), and detects a change in the j-th sensor unit by using a change in the cross-correlation r.
Inventor(s): Yoshifumi WAKISAKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Daisuke IIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yusuke KOSHIKIYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiro ISHIMARU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01H9/00, G01D5/353
CPC Code(s): G01H9/004
Abstract: the present disclosure aims to reduce a strain of an observed waveform caused by a difference in proportional constant between responses of different optical frequencies of probe light resulting from vibration in a phase otdr that uses different optical frequencies.
Inventor(s): Yoshifumi WAKISAKA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Daisuke IIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yusuke KOSHIKIYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takahiro ISHIMARU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01H9/00, G01D5/353
CPC Code(s): G01H9/004
Abstract: in order to achieve the above-described objective, the present disclosure relates to, in vibration measurement using a phase otdr, including a compensation optical pulse with a predetermined compensation optical frequency different from an optical frequency in an optical pulse pair composed of optical pulses with different optical frequencies and making the optical pulse pair incident on a sensing fiber, calculating a phase value of the optical pulse pair based on a signal of the optical frequency from a scattered light signal based on the optical pulse pair and calculating a phase value of the compensation optical frequency based on a signal of the compensation optical frequency, plotting the phase values calculated from the scattered light signal on a two-dimensional, for each optical pulse pair plane, having the phase value of the compensation optical frequency represented by a horizontal axis and the phase value of the optical pulse pair represented by a vertical axis, obtaining a gradient and a vertical axis intercept of the approximate straight line calculated from the plotted data, and correcting the phase value of the optical pulse pair using the gradient and the vertical axis intercept.
Inventor(s): Shingo ONO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01M11/00
CPC Code(s): G01M11/331
Abstract: the present disclosure relates to a device, including: a first light source for outputting incident light to a measured optical fiber or optical device; a second light source for outputting local light for being multiplexed with transmitted light through the measured optical fiber or optical device; and a signal processing unit for performing digital signal processing on a light-receiving signal i(t) obtained by multiplexing the transmitted light and the local light, wherein the signal processing unit is configured to calculate an autocorrelation function between the light-receiving signal i(t) and a signal i(t+�) obtained by shifting the light-receiving signal by a time �, and to measure a delay time difference between propagation modes in the measured optical fiber or optical device, from a peak position of the autocorrelation function.
Inventor(s): Wakana OSHIRO of Tokyo (JP) for nippon telegraph and telephone corporation, Motohiro MAKIGUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Ryuji YAMAMOTO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G01P15/18, G01P1/07
CPC Code(s): G01P15/18
Abstract: this invention can acquire a difference in motion of a motion acquisition target object without detecting the difference from the outside of the motion acquisition target object. a motion acquisition device includes two acceleration sensors, an information acquisition unit, and a motion analysis unit. the two acceleration sensors are arranged in the motion acquisition target object rotated around a rotation axis. the information acquisition unit acquires acceleration information detected by the two acceleration sensors. based on the acceleration information acquired by the information acquisition unit, the motion analysis unit estimates a distance from one of the acceleration sensors to the rotation axis and an attitude angle of the motion acquisition target object.
Inventor(s): Takahito KIRIHARA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Satoshi Narikawa of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Katsuhisa TAGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Ayako IWAKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kazuhide Nakajima of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takashi Matsui of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Chisato Fukai of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuto SAGAE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomohiro TANIGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroyuki IIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G02B6/42, A61L2/10, A61L2/24, A61L2/26
CPC Code(s): G02B6/4206
Abstract: an object of the present invention is to provide an optical transmission system capable of reducing system costs and reducing waste of output power of a light source. the optical transmission system according to the present invention includes an ultraviolet light source part having a light emitting diode (led) that outputs ultraviolet light, an optical transmission line that propagates the ultraviolet light through a plurality of cores of a multi-core optical fiber or a plurality of cores of a bundle optical fiber obtained by bundling a plurality of single-core optical fibers, and an optical system that narrows down a spot shape of the ultraviolet light output from the led to a size including all of the plurality of cores in an optical axis direction, and causes the ultraviolet light to enter the plurality of cores.
Inventor(s): Shunichi SEKO of Tokyo (JP) for nippon telegraph and telephone corporation, Naoki HAGIYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Mana SASAGAWA of Tokyo (JP) for nippon telegraph and telephone corporation, Rika MOCHIZUKI of Tokyo (JP) for nippon telegraph and telephone corporation, Harumi SAITO of Tokyo (JP) for nippon telegraph and telephone corporation, Ryuji YAMAMOTO of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F3/16
CPC Code(s): G06F3/165
Abstract: a speech desire estimation device according to one aspect of the present invention is provided in a first conference device among a plurality of conference devices used for a remote conference via a communication network, and the speech desire estimation device includes an operation information generation unit that generates operation information indicating an operation performed by a user on the first conference device during the remote conference, a speech desire degree calculation unit that calculates a speech desire degree indicating a degree of desire of the user to speak on the basis of the generated operation information, and a communication unit that transmits information based on the calculated speech desire degree to a second conference device among the plurality of conference devices.
Inventor(s): Eriko IWASA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masashi KANEKO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F9/50
CPC Code(s): G06F9/5027
Abstract: a scaling management device includes an electric power efficiency characteristic calculation unit that calculates electric power efficiency characteristics of hardware and determines a usage rate at which a value of electric power efficiency is highest, a performance ratio calculation unit that measures performance of hardware, identifies hardware having a lowest performance value, and calculates a performance ratio between the identified hardware and other hardware, a virtual resource number calculation unit that calculates a score obtained by multiplying the performance ratio by the usage rate at which the value of electric power efficiency is highest and calculates the number of virtual resources in accordance with the score, a requested resource calculation unit that calculates requested resources of virtual resources, and, a config file creation unit that creates a scaling config file and a resource config file.
Inventor(s): Sei KOU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Takashi YAMADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06F16/21
CPC Code(s): G06F16/21
Abstract: an aspect of the present invention is a database management device including: a generation unit for generating a database; a monitoring unit for monitoring a physical quantity having a positive correlation with a usage of the database generated by the generation unit; and a management unit instructing the generation unit to generate a new database as the database to be used subsequent to the database currently in use when the physical quantity monitored by the monitoring unit exceeds a threshold value, and the generation unit reserves a region for storing the new database within a storage device and generates the new database in the reserved region when instructed to generate the new database by the management unit.
Inventor(s): Sosuke IMAMURA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Kazuhiro TAKAYA of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N5/022
CPC Code(s): G06N5/022
Abstract: a technology for enabling efficient growing or breed improvement is provided. a predictive model generating system includes a genome-editing apparatus, a growing system, and a processing apparatus. the processing apparatus acquires genome-editing data from the genome-editing apparatus, acquires growth environment data and growth situation data in each growing apparatus from the growing system, generate teaching data from these data, causes a machine-learning model for predicting a growth situation or mutagenesis situation of a living body from the genome mutation and the growth environment or predicting the genome mutation from the growth environment and the growth situation of the living body, to perform learning with the teacher data, and obtains the machine-learning model that has completed the learning as a predictive model.
Inventor(s): Yuya HIKIMA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yasunori AKAGI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Naoki MARUMO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Hideaki KIN of Musashino-shi (JP) for nippon telegraph and telephone corporation, Taichi ASAMI of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N7/01, G06F16/9535, G06Q10/04
CPC Code(s): G06N7/01
Abstract: in one aspect of the present invention, parameters including a probability function defining an appearance probability of a first node for a plurality of times, a reward assigned when an edge is matched with a set of edges associating a set of first nodes with a set of second nodes for the plurality of times, and a period of time required until the second node corresponding to the matched edge is available again for the plurality of times is acquired. a first optimization problem formulated using the obtained parameter information is defined, a variable for controlling the reward of the edge and the appearance probability, and a matching strategy for designating the second node to be allocated to the appearing first node are determined as the optimal solution by solving the formulated first optimization problem, and the determined variables and matching strategy are output.
Inventor(s): Yuki KURAUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Masahiro KOJIMA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N7/01
CPC Code(s): G06N7/01
Abstract: a bayesian optimization device includes: a comparison result developing unit configured to receive and develop comparison results input by a user; a comparison result storing unit configured to store the developed comparison results; a model learning unit configured to learn a model on the basis of the developed comparison results;
Inventor(s): Tomohiro KORIKAWA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Chikako TAKASAKI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masafumi SHIMIZU of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Naoki TAKAYA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06N20/00
CPC Code(s): G06N20/00
Abstract: a node model generation unit () includes a node setting unit () that inputs predetermined setting information to a node () of a network, a traffic generation unit () that applies predetermined traffic to the node () on the basis of predetermined applied traffic information, a performance measurement/capture unit () that acquires a performance measurement result obtained by measuring performance of the node () to which the predetermined setting information is set and to which the predetermined traffic is applied and captures (acquires) output traffic, a learning data input processing unit () that collects the predetermined setting information, the predetermined applied traffic information, a performance measurement result of the node (), and the output traffic and registers the collected information as learning data, and a learning execution unit () that generates a node model of the node () by machine learning based on learning data registered by the learning data input processing unit ().
Inventor(s): Daisuke UCHIBORI of Tokyo (JP) for nippon telegraph and telephone corporation, Wataru ITO of Tokyo (JP) for nippon telegraph and telephone corporation, Kazuaki WATANABE 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): G06T7/246
CPC Code(s): G06T7/246
Abstract: an image processing device () according to the present disclosure includes a feature point detection tracking unit () that detects a feature point in a first frame that is a frame at a first time, tracks the feature point from the first time to a second time later than the first time, and calculates a two-dimensional vector indicating a motion of the feature point, a feature point movement amount calculation unit () that calculates a movement amount of the feature point based on the calculated two-dimensional vector, and a determination unit () that determines whether the calculated movement amount is equal to or greater than a predetermined threshold value, and outputs a second frame as the clipped frame, the second frame being a frame at the second time, when the movement amount is determined to be equal to or greater than the threshold value.
Inventor(s): Kosuke NISHIDA of Tokyo (JP) for nippon telegraph and telephone corporation, Kyosuke NISHIDA of Tokyo (JP) for nippon telegraph and telephone corporation, Shuichi NISHIOKA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06V10/80, G06V10/44, G06V10/74, G06V10/82
CPC Code(s): G06V10/806
Abstract: therefore, an image processing apparatus according to the present disclosure is an image processing apparatus for extracting a feature amount of image data, the image processing apparatus including: an image understanding unit that vectorizes an image pattern of the image data to extract an image feature amount; a text understanding unit that vectorizes a text pattern of attached text data attached to the image data to extract a text feature amount; and a feature amount mixing unit that generates a mixed feature amount as the feature amount by projecting the image feature amount extracted by the image understanding unit and the text feature amount extracted by the text understanding unit onto the same vector space and mixing the image feature amount and the text feature amount.
Inventor(s): Chao WU of Tokyo (JP) for nippon telegraph and telephone corporation, Shingo HORIUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Kenji MURASE of Tokyo (JP) for nippon telegraph and telephone corporation, Hiroaki KIKUSHIMA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06V20/40, G06T7/00, G06T7/62, G06T7/70
CPC Code(s): G06V20/44
Abstract: a video processing device according to an embodiment includes: a detection unit that detects at least one type of event that is likely to affect a quality of experience of a user for a video displayed by an application program; and a determination unit that determines a degree of influence of the event on the quality of experience for the video on the basis of a result of the detection by the detection unit.
Inventor(s): Daiki SATO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Atsushi FUKAYAMA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Jiro Nagao of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Narimune MATSUMURA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G06V40/20, G06T7/73
CPC Code(s): G06V40/20
Abstract: a prediction device according to an aspect of the present invention includes: a position information generation part which generates position information of a subject; a degree-of-roaming calculation part which calculates a degree of roaming indicating a degree of stereotypic behavior relating to walking for the subject on the basis of the position information of the subject; a prediction part which predicts occurrence of a predetermined symptom in the subject on the basis of the degree of roaming of the subject; and a notification part which outputs a notification in response to prediction that symptom will occur in the subject.
Inventor(s): Yoko TOKUNAGA of Tokyo (JP) for nippon telegraph and telephone corporation, Iwaki TOSHIMA of Tokyo (JP) for nippon telegraph and telephone corporation, Shiro OZAWA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): G10L15/32, G10L15/06, G10L15/22
CPC Code(s): G10L15/32
Abstract: an estimation device includes an activity score calculation unit that calculates, on the basis of a linguistic feature amount of an utterance in a dialogue transcript of a plurality of persons, an activity score indicating the degree the excitement of a dialogue gives to satisfaction of each participant; an activeness score calculation unit that divides the dialogue transcript by a time axis, and calculates, on the basis of the number of utterances and the number of utterance words of each participant in each zone, an activeness score indicating the degree the activeness of a speech in a dialogue by the participant gives to satisfaction of each participant. further, there is an influence score calculation unit that divides the dialogue transcript, and calculates an influence score, and a dialogue evaluation estimation unit that estimates a dialogue evaluation score.
20250007240. DML DRIVER_simplified_abstract_(nippon telegraph and telephone corporation)
Inventor(s): Toshiki Kishi of Tokyo (JP) for nippon telegraph and telephone corporation, Tadashi Minotani of Tokyo (JP) for nippon telegraph and telephone corporation, Nobuhiro Toyoda of Yokohama-shi (JP) for nippon telegraph and telephone corporation, Yoshikazu Urabe of Yokohama-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H01S5/062
CPC Code(s): H01S5/06213
Abstract: a dml driver () includes a pmos transistor (m) having a gate connected to a bias voltage (v), a source connected to a power supply voltage (v), and a drain connected to the anode of an ld (), an nmos transistor (m) having a source connected to ground, an inductor (l) having one end to which a modulated signal (v) is input, and the other end connected to the gate of the nmos transistor (m), and a resistor (r) having one end connected to a bias voltage (v), and the other end connected to one end of the inductor (l).
Inventor(s): Yu ONO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tatsuya NAKATANI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Toshifumi MIYAGI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B7/155, H04B1/00
CPC Code(s): H04B7/15528
Abstract: a wireless relay system includes a first software radio device that performs radio communication with a radio control device and a second software radio device that performs radio communication with a radio terminal. the first software radio device captures, as iq data, a radio signal received from the radio control device, transfers the captured iq data to the second software radio device in real time, converts the iq data transferred from the second software radio device into a radio signal, and transmits the radio signal to the radio control device. the second software radio device captures, as iq data, a radio signal received from the radio terminal, transfers the captured iq data to the first software radio device in real time, converts the iq data transferred from the first software radio device into a radio signal, and transmits the radio signal to the radio terminal.
Inventor(s): Shin KANEKO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Takuya KANAI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Naotaka SHIBATA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Junichi KANI of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04B10/27, H04B10/294
CPC Code(s): H04B10/27
Abstract: an optical communication system including a subscriber device that performs optical connection with other subscriber device by end-end, and a management control device that controls each subscriber device, wherein the subscriber device includes an optical signal transmission unit configured to transmit an optical signal, an optical signal reception unit configured to receive an optical signal transmitted from the other subscriber device, and an output function unit configured to output an optical signal outputted by the optical signal transmission unit to an optical transmission line regardless of a wavelength and outputs an optical signal inputted from the optical transmission line to the optical signal reception unit regardless of the wavelength, and the management control device allocates wavelengths so that a transmission wavelength of the subscriber device becomes a reception wavelength of the other subscriber device and a transmission wavelength of the other subscriber device becomes a reception wavelength of the subscriber device.
Inventor(s): Satoshi NAKATSUKASA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yuki TAKEI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Masato NISHIGUCHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroyuki ONISHI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L45/00, H04L45/302, H04L45/745
CPC Code(s): H04L45/38
Abstract: a traffic identification device includes a first acquisition module, a first setting module, a second acquisition module, and a second setting module. the first acquisition module acquires first packet identification information for identifying a packet with a first granularity and a network identifier associated with the first packet identification information. the first setting module sets the first packet identification information and the network identifier to a switch connected to a router for receiving packets from a user base such that the switch assigns the network identifier to a packet matching the first packet identification information. the second acquisition module acquires second packet identification information for identifying a packet transmitted from the user base with a second granularity coarser than the first granularity. the second setting module sets the second packet identification information to the router.
Inventor(s): Kenji MIYAMOTO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yoshihito SAKAI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Tatsuya SHIMADA of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L47/22, H04W28/02, H04W28/22
CPC Code(s): H04L47/22
Abstract: provided is a communication system comprising: at least one base station accommodating a wireless terminal; at least one transfer device which transfers, to a higher level, an uplink communication of the wireless terminal received via the base station; and a transfer device controller which controls the at least one transfer device, and the communication system further includes: an information acquisition unit for acquiring information regarding a wireless communication for each quality-of-service class between the base station and the wireless terminal; a rate determination unit for determining, for each of the quality-of-service classes, a shaping rate for traffic shaping such that a packet loss caused by congestion does not occur, on the basis of the information regarding the wireless communication for each quality-of-service class; and a communication control unit for executing, for each quality-of-service class, the traffic shaping at the higher level to the base station on the basis of the shaping rate determined by the rate determination unit.
Inventor(s): Takuma KOYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Masashi TANAKA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04L9/40, H04L67/12, H04L67/55
CPC Code(s): H04L63/1425
Abstract: a monitoring device includes processing circuitry configured to use a normal communication model of communication between ecus of a vehicle and determine, for each of packets transmitted and received by the ecus, whether or not the packet is abnormal, when any one of the packets is determined to be abnormal, determine a series of packets from a same service and a same transmission source as the packet determined to be abnormal as abnormal on a basis of a session id indicating a communication order included in header information of the packet determined to be abnormal, and output information of a packet determined to be abnormal and information of a packet determined to be abnormal.
Inventor(s): Xiaotian ZHAO of Tokyo (JP) for nippon telegraph and telephone corporation, Takafumi OKUYAMA of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04N13/194, H04N21/234, H04N21/2662, H04N21/472, H04N21/81
CPC Code(s): H04N13/194
Abstract: a distribution device according to one embodiment is a distribution device for distributing stereoscopic video content of an object composed of a polygon mesh and a texture to a terminal, the device including: a first chunk creation unit configured to create pieces of first chunk data from each piece of mesh frame data representing each piece of frame data of the polygon mesh; a second chunk creation unit configured to create pieces of second chunk data from each piece of texture frame data representing each piece of frame data of the texture; and a chunk distribution unit configured to transmit, in response to a chunk distribution request from the terminal, at least one of first chunk data and second chunk data related to the chunk distribution request to the terminal.
Inventor(s): Motohiro MAKIGUCHI of Tokyo (JP) for nippon telegraph and telephone corporation, Takahiro MATSUMOTO of Tokyo (JP) for nippon telegraph and telephone corporation, Wakana OSHIRO of Tokyo (JP) for nippon telegraph and telephone corporation, Masanori YOKOYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Ryuji YAMAMOTO of Tokyo (JP) for nippon telegraph and telephone corporation, Yuta NAMBU of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04N21/218, H04N23/698
CPC Code(s): H04N21/21805
Abstract: a video processing device according to an embodiment includes: a calculation unit that calculates capturing directions of videos in which a subject is captured from third-party viewpoints by a plurality of 360 degree cameras on the basis of position information on the subject and position information on the plurality of 360 degree cameras each capturing a video in a range of 360 degrees around; a selection unit that selects a capturing direction in which a desired subject by a user who is not the subject is captured from a third-party viewpoint and that is a desired capturing direction by the user, from the capturing directions calculated by the calculation unit; and an output unit that outputs a video in a range including the desired subject in a video captured by one of the 360 degree cameras capable of performing capturing in the capturing direction selected by the selection unit.
Inventor(s): Yasunari TANAKA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Takuya KANAI of Musashino-shi (JP) for nippon telegraph and telephone corporation, Kazutaka HARA of Musashino-shi (JP) for nippon telegraph and telephone corporation, Yumiko SENOO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Shin KANEKO of Musashino-shi (JP) for nippon telegraph and telephone corporation, Junichi KANI of Musashino-shi (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04Q11/00, H04L41/12, H04L43/0864
CPC Code(s): H04Q11/0062
Abstract: an optical switch having a plurality of ports outputs an optical signal received from a first port that is one of the plurality of ports connected to an optical communication device from a second port that another one of the plurality of ports according to a transmission path of an optical signal. an optical branching part branches an optical signal which has been output from a second port in accordance with a branching ratio. a measurement part measures a round trip time by transmitting and receiving an optical signal to and from an optical communication device through an optical switch, and calculates a transmission distance of the optical signal on the basis of the measured round trip time. an instruction part instructs, the optical branching part, of the branching ratio determined on the basis of the calculated transmission distance.
Inventor(s): Hironobu CHIBA of Tokyo (JP) for nippon telegraph and telephone corporation, Tatsuya KAKO of Tokyo (JP) for nippon telegraph and telephone corporation, Kazunori KOBAYASHI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04R1/10, H04R1/28, H04R1/34
CPC Code(s): H04R1/105
Abstract: an acoustic signal output device includes a driver unit and a housing that internally accommodates the driver unit. here, an acoustic signal emitted from the driver unit to one side is set as a first acoustic signal, and an acoustic signal emitted from the driver unit to another side is set as a second acoustic signal. a wall portion of the housing is provided with a single or plurality of first sound holes for leading out the first acoustic signal to an outside and a single or plurality of second sound holes for leading out the second acoustic signal to an outside. an attenuation rate of the first acoustic signal at a second point with reference to a predetermined first point, where the first acoustic signal arrives at the first point and the second point is farther from the acoustic signal output device than the first point, is equal to or less than a predetermined value smaller than an attenuation rate due to air propagation. alternatively, an attenuation amount of the first acoustic signal at the second point with reference to the first point is equal to or more than a predetermined value larger than an attenuation amount due to air propagation.
Inventor(s): Lidwina Ayu ANDARINI of Tokyo (JP) for nippon telegraph and telephone corporation, Toru NISHIMURA of Tokyo (JP) for nippon telegraph and telephone corporation, Takashi KUBO of Tokyo (JP) for nippon telegraph and telephone corporation, Kazuya MATSUO of Tokyo (JP) for nippon telegraph and telephone corporation, Katsuhiro SUZUKI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04S7/00, G10L13/02
CPC Code(s): H04S7/30
Abstract: a generation device includes a coefficient acquisition unit that acquires coefficient information of an object on the basis of raw material information of the object when detecting an interaction of the object mapped on cyber space, a sound source selection unit that calculates statistical information in which a type of a sound source corresponding to the interaction of the object and intensity of the sound source are associated with each other and selects sound source information. further, there is a voice synthesis unit that generates synthesized sound source information obtained by synthesizing the sound source information on the basis of the statistical information and the sound source information and generates three-dimensional sound source information obtained by converting the synthesized sound source information into three-dimension by executing three-dimensional sound rendering on the basis of the position information to the synthesized sound source information.
Inventor(s): Ryo MIYATAKE of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Kenta ITO of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Hiroaki KATSURAI of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Yoichi FUKADA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation, Tomoaki YOSHIDA of Musashino-shi, Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W52/02, H02J7/35, H02J50/00
CPC Code(s): H04W52/0235
Abstract: provided is a communication system in which at least a master unit of the master unit and a slave unit is driven by a finite power source, in which the master unit notifies the slave unit by including period information indicating a shortest sleep period, which is a shortest possible period of a sleep period, in a communication signal with the slave unit before transitioning to a sleep state in which a power saving operation is possible and communication is disabled, with respect to the sleep period of operating in the sleep state after transitioning to the sleep state, and the slave unit performs a power saving operation during the shortest period notified of by the master unit.
Inventor(s): Junichi IWATANI of Tokyo (JP) for nippon telegraph and telephone corporation, Shoko SHINOHARA of Tokyo (JP) for nippon telegraph and telephone corporation, Yusuke ASAI of Tokyo (JP) for nippon telegraph and telephone corporation, Yasushi TAKATORI of Tokyo (JP) for nippon telegraph and telephone corporation, Tomoyuki YAMADA of Tokyo (JP) for nippon telegraph and telephone corporation, Yoshitaka SHIMIZU of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W74/04, H04W72/02
CPC Code(s): H04W74/04
Abstract: the wireless communication system includes a wireless terminal and a control unit. the wireless terminal includes a plurality of wireless modules that respectively perform wireless communication with a plurality of base stations on different channels. the wireless terminal uses one of the plurality of wireless modules as a use module, and stops data transmission from wireless modules other than the use module. the control unit performs switching of the use module in the wireless terminal such that a transmission time rate of each of the plurality of wireless modules does not exceed a predetermined upper limit.
Inventor(s): Takeru FUKUSHIMA of Tokyo (JP) for nippon telegraph and telephone corporation, Motoharu SASAKI of Tokyo (JP) for nippon telegraph and telephone corporation, Toshiro NAKAHIRA of Tokyo (JP) for nippon telegraph and telephone corporation, Takatsune MORIYAMA of Tokyo (JP) for nippon telegraph and telephone corporation, Yasushi TAKATORI of Tokyo (JP) for nippon telegraph and telephone corporation
IPC Code(s): H04W76/10, H04W76/20, H04W76/40
CPC Code(s): H04W76/10
Abstract: a radio communication method includes: a transmitting step of broadcasting, by a radio base station, a connection condition of the radio base station; a managing step of managing, by the radio base station, a connection with a radio station requesting a connection to the radio base station based on the connection condition, by using a blockchain shared by a plurality of radio base stations; and a changing step of acquiring, by the radio base station, information on a radio station connected to another radio base station from the blockchain and changing the connection condition of the radio base station based on the information on the radio station connected to the other radio base station.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on January 2nd, 2025
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- A61L9/20
- F24F8/167
- F24F8/22
- CPC A61L9/205
- Nippon telegraph and telephone corporation
- C25B11/031
- C25B3/26
- C25B9/19
- C25B11/052
- CPC C25B11/031
- G01C9/18
- G01C9/06
- H01M6/12
- CPC G01C9/18
- G01D5/353
- G01K11/32
- CPC G01D5/35329
- G01H9/00
- CPC G01H9/004
- G01M11/00
- CPC G01M11/331
- G01P15/18
- G01P1/07
- CPC G01P15/18
- G02B6/42
- A61L2/10
- A61L2/24
- A61L2/26
- CPC G02B6/4206
- G06F3/16
- CPC G06F3/165
- G06F9/50
- CPC G06F9/5027
- G06F16/21
- CPC G06F16/21
- G06N5/022
- CPC G06N5/022
- G06N7/01
- G06F16/9535
- G06Q10/04
- CPC G06N7/01
- G06N20/00
- CPC G06N20/00
- G06T7/246
- CPC G06T7/246
- G06V10/80
- G06V10/44
- G06V10/74
- G06V10/82
- CPC G06V10/806
- G06V20/40
- G06T7/00
- G06T7/62
- G06T7/70
- CPC G06V20/44
- G06V40/20
- G06T7/73
- CPC G06V40/20
- G10L15/32
- G10L15/06
- G10L15/22
- CPC G10L15/32
- H01S5/062
- CPC H01S5/06213
- H04B7/155
- H04B1/00
- CPC H04B7/15528
- H04B10/27
- H04B10/294
- CPC H04B10/27
- H04L45/00
- H04L45/302
- H04L45/745
- CPC H04L45/38
- H04L47/22
- H04W28/02
- H04W28/22
- CPC H04L47/22
- H04L9/40
- H04L67/12
- H04L67/55
- CPC H04L63/1425
- H04N13/194
- H04N21/234
- H04N21/2662
- H04N21/472
- H04N21/81
- CPC H04N13/194
- H04N21/218
- H04N23/698
- CPC H04N21/21805
- H04Q11/00
- H04L41/12
- H04L43/0864
- CPC H04Q11/0062
- H04R1/10
- H04R1/28
- H04R1/34
- CPC H04R1/105
- H04S7/00
- G10L13/02
- CPC H04S7/30
- H04W52/02
- H02J7/35
- H02J50/00
- CPC H04W52/0235
- H04W74/04
- H04W72/02
- CPC H04W74/04
- H04W76/10
- H04W76/20
- H04W76/40
- CPC H04W76/10
