NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on March 20th, 2025
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION on March 20th, 2025
NIPPON TELEGRAPH AND TELEPHONE CORPORATION: 30 patent applications
NIPPON TELEGRAPH AND TELEPHONE CORPORATION has applied for patents in the areas of H04L47/24 (2), H04B7/185 (2), G06Q10/0631 (2), G06T17/00 (2), A61M21/02 (1) G06T17/00 (2), A61M21/02 (1), H04B10/272 (1), H04W52/20 (1), H04W40/06 (1)
With keywords such as: unit, device, data, transmission, communication, apparatus, information, signal, reception, and control in patent application abstracts.
Patent Applications by NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor(s): Hironobu CHIBA of Tokyo JP for nippon telegraph and telephone corporation, Hiroaki ITO of Tokyo JP for nippon telegraph and telephone corporation, Kenichi NOGUCHI of Tokyo JP for nippon telegraph and telephone corporation, Tatsuya KAKO of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): A61M21/02, A61M21/00
CPC Code(s): A61M21/02
Abstract: the sensory stimulus presentation device includes: a label acquisition unit that acquires a classification label of an intellectual task to be performed by a user; and a sound emission unit that emits a first type of sound satisfying a predetermined criterion when the acquired classification label indicates a creativity task, and emits a second type of sound satisfying a criterion different from that of the first type of sound when the acquired classification label indicates a storage task.
20250093575. OPTICAL FIBER_simplified_abstract_(nippon telegraph and telephone corporation)
Inventor(s): Takashi MATSUI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kazuhide NAKAJIMA 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
IPC Code(s): G02B6/02
CPC Code(s): G02B6/02366
Abstract: an object of the present disclosure is to provide an optical fiber having a simple structure, as well as attaining removal of loss components generated in an electric field part oozing out to a core-clad interface or a clad region and reduction in scattering loss generated from an interface with the clad region.
20250093575. OPTICAL FIBER_simplified_abstract_(nippon telegraph and telephone corporation)
Inventor(s): Takashi MATSUI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kazuhide NAKAJIMA 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
IPC Code(s): G02B6/02
CPC Code(s): G02B6/02366
Abstract: the present disclosure relates to an optical fiber including a core for propagating light, a cladding disposed around the core, an air layer between the core and the cladding, and two or more bridges for supporting the core in the air layer.
Inventor(s): Shigeaki HARADA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06F9/455
CPC Code(s): G06F9/45558
Abstract: a migration destination determination apparatus configured to, in migration of a virtual machine, determine a physical server as a migration destination of the virtual machine, the migration destination determination apparatus including: an extraction unit configured to extract one or more variation patterns in resource usage from resource amount logs acquired from a plurality of physical servers; and a migration destination determination unit configured to determine, based on a similarity between a variation pattern in resource usage of the virtual machine in an area of a migration source and a variation pattern in resource usage of a physical server in another area, the physical server as a migration destination of the virtual machine.
Inventor(s): Kiwami INOUE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Junki ICHIKAWA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yukio TSUKISHIMA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kenji SHIMIZU of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Hideki NISHIZAWA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06F13/28
CPC Code(s): G06F13/28
Abstract: a local terminal transmits to a processing device an rdma transmission packet in which processing data to be transferred to a memory of an accelerator of each of a first remote terminal and a second remote terminal is set. the processing device acquires a qpn from the first remote terminal, converts a destination qp of a bth of the rdma transmission packet into the qpn acquired from the first remote terminal, and transmits a converted rdma transmission packet to the first remote terminal. when a connection is established, the processing device acquires a qpn from the second remote terminal, converts the destination qp of the bth of the rdma transmission packet into the qpn acquired from the second remote terminal, and transmits a converted rdma transmission packet to the second remote terminal. each of the first and second remote terminal transfers the processing data to the memory of the accelerator.
Inventor(s): Atsushi OTSUKA of Tokyo JP for nippon telegraph and telephone corporation, Narichika NOMOTO of Tokyo JP for nippon telegraph and telephone corporation, Shiro OZAWA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06F16/3329, G06F16/176, G06V30/148
CPC Code(s): G06F16/3329
Abstract: a data collection device according to an embodiment includes: an acquisition unit that acquires data when the data is stored in a shared storage area available to one or more users; a determination unit that determines whether or not a format of the data acquired by the acquisition unit is a format in which text included in the data can be extracted by a predetermined library; an extraction unit that extracts the text included in the data by a text extraction method according to a determination result determined by the determination unit; and a storage unit that stores the text extracted by the extraction unit in a database as learning data for a machine learning model that implements a natural language processing task.
Inventor(s): Nobuhiro CHIBA of Tokyo JP for nippon telegraph and telephone corporation, Hiroyoshi TAKIGUCHI of Tokyo JP for nippon telegraph and telephone corporation, Takaaki KOYAMA of Tokyo JP for nippon telegraph and telephone corporation, Yoshiaki NAKAJIMA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06F21/64
CPC Code(s): G06F21/64
Abstract: a detection device includes processing circuitry configured to acquire position information and a file size of a falsification detection target file, and determine a change in the position information or the file size acquired, and detect falsification of the falsification detection target file in a case where there is a change in the position information or the file size.
Inventor(s): Hideaki KINSHO of Tokyo JP for nippon telegraph and telephone corporation, Kei TAKESHITA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06F30/20
CPC Code(s): G06F30/20
Abstract: a tilt angle optimization apparatus configured to perform optimization of a tilt angle of each of antennas at each of base stations forming a cellular network is provided. the tilt angle optimization apparatus includes a processor; and a memory storing program instructions that cause the processor to: construct a performance model by modeling a relationship between the number of active users of each of the antennas and performance providable by each of the antennas; estimate a user distribution of active users around each of the base stations based on statistical data observed at each of the base stations; and obtain the tilt angle of each of the antennas based on the constructed performance model and the estimated user distribution in order to maximize area quality in a specified target area.
Inventor(s): Atsuhiko MAEDA of Tokyo JP for nippon telegraph and telephone corporation, Kenichi FUKUDA of Tokyo JP for nippon telegraph and telephone corporation, Masato KAMIYA of Tokyo JP for nippon telegraph and telephone corporation, Yukio KIKUYA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06Q10/0631, G06Q10/0635, G06Q50/22
CPC Code(s): G06Q10/06312
Abstract: a display control device estimates an occurrence time at which a call occurs at an occurrence point for each of a plurality of occurrence points on the basis of a predictive distribution of an occurrence point representing a point where a call for an emergency vehicle occurs. the display control device executes a simulation of an emergency activity in which any one of a plurality of emergency vehicles available for dispatch is dispatched to the occurrence point at the occurrence time for each of the plurality of occurrence points on the basis of the occurrence time of each of the plurality of occurrence points and an operational status of each of the plurality of emergency vehicles. on the basis of a simulation result, the display control device extracts, from the plurality of occurrence points, an occurrence point at which the distance between an emergency vehicle available for dispatch and the occurrence point is equal to or greater than a threshold, and calculates a risk level such that the risk level of an area to which the extracted occurrence point belongs becomes high. the display control device controls a display unit to display the risk level.
Inventor(s): Kimio TSUCHIKAWA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Taisuke WAKASUGI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Fumihiro YOKOSE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Ryo UCHIDA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yuki Urabe of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Sayaka Yagi of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06Q10/0639, G06Q10/0631
CPC Code(s): G06Q10/0639
Abstract: an information processing apparatus acquires an operation log regarding operation information, analyzes the operation log, and specifies attribute information of the operation log. then, the information processing apparatus visualizes an image including an object on the basis of the specified attribute information, where the object is an object of operation logs in predetermined units and is selectable by an operation of a user. next, the information processing apparatus generates a feasible automatic operation program on the basis of a selected object in a case where the object included in the visualized image is selected by the operation of the user.
Inventor(s): Yoko SOGABE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Shiori SUGIMOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masaki KITAHARA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Tokinobu MITASAKI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06T5/70, G06V10/74
CPC Code(s): G06T5/70
Abstract: according to an aspect of the present invention, there is provided a noise reducing device including: a provisional image reconstructing unit that generates a provisional image by reconstructing an encoded image obtained through compressed spectral imaging; a similar patch search unit that acquires a plurality of similar provisional patches that are small regions including images similar to each other in the provisional image; a group generating unit that acquires a plurality of similar encoded patches that are small regions including images similar to each other in the encoded image based on information on positions where the similar provisional patches have been acquired; a low-rank approximation unit that performs low-rank approximation based on the plurality of similar encoded patches to acquire a patch in which noise on an image has been reduced in a region included in the similar encoded patches; and a patch integrating unit that generates an encoded image by integrating a plurality of patches in which noise has been reduced, depending on information on positions of the patches.
Inventor(s): Yusuke SAKURAHARA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yukihiro GOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masaki WAKI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Takashi EBINE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06T17/00
CPC Code(s): G06T17/00
Abstract: an object of the present disclosure is to enable a three-dimensional model to be created even for a target object which has unevenly spaced inter-point distances and only a part of a point cloud.
Inventor(s): Yusuke SAKURAHARA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yukihiro GOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masaki WAKI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Takashi EBINE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06T17/00
CPC Code(s): G06T17/00
Abstract: according to the present disclosure, there are provided an apparatus and a method in which, a three-dimensional model of a target object is created from point cloud data in which each point represents three-dimensional coordinates, the three-dimensional model is superimposed on an image in which a target object of the three-dimensional model is photographed, a superimposed image generated by the superimposition is displayed, and when a range of the target object in the superimposed image is input, a three-dimensional model is created again using point cloud data in which a point is located in a range of the superimposed image.
Inventor(s): Yusuke SAKURAHARA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yukihiro GOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masaki WAKI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Takashi EBINE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G06T17/00, G06T19/20
CPC Code(s): G06T17/00
Abstract: an object of the present disclosure is to enable a three-dimensional model to be created even for a target object which has unevenly spaced inter-point distances and only a part of a point cloud. according to the present disclosure, there are provided an apparatus and a method in which a three-dimensional model of a target object is created from point cloud data in which each point represents three-dimensional coordinates, the three-dimensional model is superimposed on an image in which a target object of the three-dimensional model is photographed, a point cloud data to be added to a point cloud data that constitutes the three-dimensional model is selected by comparing the three-dimensional model with the target object in the image, and the three-dimensional model of the target object is created again using the point cloud data including the point cloud to be added.
Inventor(s): Kentaro YASU of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G09F9/37
CPC Code(s): G09F9/375
Abstract: one aspect of the present invention is a pin display device including a housing and a plurality of pins, the pin display device being used as a pin display system such that a direction in which at least gravity acts is set as a negative direction of a z direction, and a lower surface of the housing is brought into contact with or into proximity to an upper surface that is one surface of a magnetic sheet . each pot magnet emits a magnetic field capable of moving a pin including the pot magnet in a positive direction of the z direction by a repulsive force due to a magnetic force generated between the pot magnet and the upper surface of the magnetic sheet in a state where the pin including the pot magnet is inserted into a pin insertion hole.
Inventor(s): Yohei WAKISAKA of Tokyo JP for nippon telegraph and telephone corporation, Noriyoshi KAMADO of Tokyo JP for nippon telegraph and telephone corporation, Hiroaki ITO of Tokyo JP for nippon telegraph and telephone corporation, Shin MURATA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G10K11/178
CPC Code(s): G10K11/17823
Abstract: to provide a noise control apparatus capable of stabilizing a noise suppression operation even when noise characteristics rapidly change in a manner that the noise control apparatus is controlled by correcting a coefficient of an adaptive filter, stopping a cancelling speaker, and the like in accordance with the current position of a vehicle such as a train. the noise control apparatus generates a cancellation signal to be reproduced by a cancelling speaker by performing an operation corresponding to position information m of a moving object in which the cancelling speaker used in active noise control is installed.
Inventor(s): Mitsuhiro GOTO of Tokyo JP for nippon telegraph and telephone corporation, Soichiro UCHIDA of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): G10L25/60, G10L15/22
CPC Code(s): G10L25/60
Abstract: the information presentation device according to an embodiment includes: an acquisition unit configured to acquire a speech speed and a sound pressure of an utterance at a predetermined interval; a determination unit configured to determine whether at least one of the speech speed or the sound pressure needs to be improved or not; and a presentation content control unit configured to acquire a pseudo heartbeat sound in a case where it is determined that the speech speed needs to be improved, acquire a bubble noise in a case where it is determined that the sound pressure needs to be improved, and output presentation information including at least one of the pseudo heartbeat sound or the bubble noise.
Inventor(s): Riku OMIYA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masashi IWABUCHI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Tomoaki OGAWA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yasushi TAKATORI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H01Q3/46
CPC Code(s): H01Q3/46
Abstract: a reflection characteristic analysis device analyzes reflection characteristics of a reconfigurable intelligent surface (ris: reconfigurable intelligent surface). the reflection characteristic analysis device includes a ray trace calculation unit and an electromagnetic field analysis unit. the ray trace calculation unit calculates an incident angle of an electromagnetic wave incident on the reconfigurable intelligent surface by a ray-tracing method. the electromagnetic field analysis unit acquires the incident angle calculated by the ray trace calculation unit, and calculates, based on an electromagnetic field analysis, the reflection characteristics obtained when the electromagnetic wave enters the reconfigurable intelligent surface at the incident angle.
Inventor(s): Kazumitsu SAKAMOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Tomoya KAGEYAMA of Musashino-shi JP for nippon telegraph and telephone corporation, Yosuke FUJINO of Musashino-shi JP for nippon telegraph and telephone corporation, Daisuke GOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Yasuyoshi KOJIMA of Musashino-shi JP for nippon telegraph and telephone corporation, Kiyohiko ITOKAWA of Musashino-shi JP for nippon telegraph and telephone corporation
IPC Code(s): H04B7/185, H04W52/02
CPC Code(s): H04B7/18513
Abstract: there is provided a wireless communication device in a wireless communication system including one or more communication devices installed on the ground and a moving wireless communication device, the wireless communication device including: an activation signal generation unit that generates an activation signal for activating the one or more communication devices; a distribution unit that distributes the activation signal generated by the activation signal generation unit; one or more frequency change application units that apply a frequency change to the activation signal distributed by the distribution unit; and a transmission unit that transmits an activation signal to which a frequency change is applied to the one or more frequency change application units.
Inventor(s): Kenta ITO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Hirokazu KAGEYAMA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Satoshi SHIMAZU of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Takayoshi TASHIRO 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): H04B10/272, H04B10/032, H04L12/44, H04L41/084
CPC Code(s): H04B10/272
Abstract: there is provided a device switching method in an optical communication system including an upper-layer device, a switching source optical subscriber line terminal station device that is a device switching source, a switching destination optical subscriber line terminal station device that is a device switching destination, and an optical branching unit to which the switching source optical subscriber line terminal station device and the switching destination optical subscriber line terminal station device are connected. the optical branching unit has a branching ratio of m:n and has m first ports and n second ports. the switching source optical subscriber line terminal station device is connected to one first port, and the switching destination optical subscriber line terminal station device is connected to any of the remaining first ports of the m first ports. the device switching method starts communication by the switching destination optical subscriber line terminal station device after setting.
Inventor(s): Ryo KOMA of Musashino-shi JP for nippon telegraph and telephone corporation, Junichi KANI of Musashino-shi JP for nippon telegraph and telephone corporation, Kazutaka HARA of Musashino-shi JP for nippon telegraph and telephone corporation, Takuya KANAI of Musashino-shi JP for nippon telegraph and telephone corporation
IPC Code(s): H04B10/516, H04B10/27
CPC Code(s): H04B10/5161
Abstract: an aspect of the present invention is an optical transmitter including: a first modulation unit configured to generate an optical modulated signal through intensity modulation of an optical signal; a second modulation unit configured to generate an optical modulated signal through phase/frequency modulation of the optical signal; and a modulation scheme switching unit configured to switch a modulator of the optical signal to one of the first and second modulation units. the modulation scheme switching unit switches the modulator to a modulation unit corresponding to a device of a connection destination between the first and second modulation units.
Inventor(s): Yasuyoshi KOJIMA of Musashino-shi JP for nippon telegraph and telephone corporation, Daisuke GOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Kiyohiko ITOKAWA of Musashino-shi JP for nippon telegraph and telephone corporation, Kazumitsu SAKAMOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Tomoya KAGEYAMA of Musashino-shi JP for nippon telegraph and telephone corporation
IPC Code(s): H04B17/318, H04B7/185
CPC Code(s): H04B17/318
Abstract: in a wireless communication system including a first communication device, one or more second communication devices disposed around the first communication device, and a relay device that moves, the second communication device includes a second reception unit that attempts to receive a radio wave in a predetermined band and measures reception strength, and a second transmission unit that transmits, to the first communication device, reception result information indicating a peripheral radio wave condition based on the reception strength measured by the second reception unit, and the first communication device includes a first reception unit that attempts to receive a radio wave in the predetermined band and measures reception strength, a determination unit that determines a band to be used for transmission of data to the relay device on a basis of a peripheral radio wave condition based on the reception strength measured by the first reception unit and the peripheral radio wave condition based on the reception result information transmitted from the second transmission unit, and a first transmission unit that transmits the data to the relay device using the band determined by the determination unit.
Inventor(s): Akira KAWAI of Musashino-shi JP for nippon telegraph and telephone corporation, Masanori NAKAMURA of Musashino-shi JP for nippon telegraph and telephone corporation, Takayuki KOBAYASHI 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): H04J14/02, H04J14/06
CPC Code(s): H04J14/02216
Abstract: a characteristic measurement device that measures a characteristic between lanes of a transmitter and a receiver connected via an optical fiber transmission path, the characteristic measurement device including an adaptive equalization unit that uses a polarization multiplexed reception signal and a phase conjugate signal of the polarization multiplexed reception signal or a plurality of signals mathematically equivalent to the reception signal and the phase conjugate signal of the reception signal as input signals and performs equalization processing on the input signals, and a characteristic function derivation unit that calculates a first inverse characteristic representing an inverse characteristic of the transmitter and a second inverse characteristic representing an inverse characteristic of the receiver on the basis of a filter coefficient obtained at the time of the equalization processing performed by the adaptive equalization unit and a frequency offset.
Inventor(s): Mitsuhiro GOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Hitoshi SESHIMO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H04L12/18, G06T13/80
CPC Code(s): H04L12/1822
Abstract: an information presentation method for presenting action instruction information to a presentation proxy device that performs a presentation as proxy includes: a step of acquiring a scenario of a presentation and data of a personality characteristic of a human presenter; a step of converting the scenario by using an action characteristic model in accordance with the data of the personality characteristic of the human presenter; and a step of outputting the scenario converted, to the presentation proxy device.
Inventor(s): Ko NATORI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kei FUJIMOTO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H04L43/0852, H04L43/103
CPC Code(s): H04L43/0852
Abstract: a server delay control device includes: a data arrival notifier that notifies a data processing apl of data acquired by a data arrival monitor and passes the data to the data processing apl (); and a manager that causes a polling thread to sleep and cancels sleep of the polling thread by a hardware interrupt when a packet arrives, and the manager controls a timing of the sleep by permitting the hardware interrupt on the basis of characteristics of an application program.
Inventor(s): Naoki Miura of Tokyo JP for nippon telegraph and telephone corporation, Takeshi Sakamoto of Tokyo JP for nippon telegraph and telephone corporation, Yuki Arikawa of Tokyo JP for nippon telegraph and telephone corporation, Tsuyoshi Ito of Tokyo JP for nippon telegraph and telephone corporation, Kenji Tanaka of Tokyo JP for nippon telegraph and telephone corporation, Masaru Katayama of Tokyo JP for nippon telegraph and telephone corporation, Yuta Ukon of Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H04L45/037, H04L47/24
CPC Code(s): H04L45/037
Abstract: a user management apparatus adds a tag in which route information is described to a packet received from a user and transmits the packet to a data transfer device. the data transfer device transfers the packet to one of data processing devices under control and other data transfer devices based on the route information included in the received packet. the data processing device performs processing of a service function for data included in the received packet. a communication management apparatus calculates a route of a service chain necessary for implementing the service requested by the user and transmits route information to the user management apparatus.
Inventor(s): Tomoya HIBI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kiwami INOUE of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Junki ICHIKAWA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Yukio TSUKISHIMA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Kenji SHIMIZU of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H04L47/24, H04L67/06
CPC Code(s): H04L47/2458
Abstract: a data transfer system includes: a transmission side data transfer device that transmits a plurality of pieces of data generated by a data generator; and a reception-side data transfer device that transmits a bundle of the pieces of data to a remote computer, the transmission-side data transfer device includes: a distribution unit that distributes the plurality of pieces of data to distribution destinations having priorities of the respective pieces of data; a generation unit that consolidates a plurality of pieces of data respectively distributed to the distribution destinations into each chunk having a size greater than or equal to a certain size, in order from one of the distribution destinations having a high priority; and a transmission unit that transmits each of the chunks to the reception-side data transfer device, and the reception-side data transfer device includes a determination unit that determines the priorities of the pieces of data.
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): H04L47/283, H04W28/06
CPC Code(s): H04L47/283
Abstract: according to an aspect of the present invention, there is provided a signal transfer system that transfers a signal from one communication device to another communication device, the signal transfer system including an information acquisition unit that acquires network transfer information that is information regarding a traffic flow for each traffic flow from the one communication device to the other communication device; and a communication control unit that executes an adjustment process that is a process of reducing a waiting time for a frame on the basis of the network transfer information acquired by the information acquisition unit.
Inventor(s): Hiroya ONO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Tatsuya FUKUI of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Toshihito FUJIWARA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Ryota SHIINA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation
IPC Code(s): H04N21/24
CPC Code(s): H04N21/2408
Abstract: provided are a delay time measurement server, a delay time measurement method, and a program for calculating a video display delay time without arranging a special device on the client side. the delay time measurement server calculates a video transmission delay time from when a video signal obtained by encoding a specific video is transmitted toward a monitor until when a reaction signal for the specific video is received, as a video display delay time from when the video signal is transmitted toward the monitor until when the video is displayed on the monitor.
Inventor(s): Daisuke GOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Fumihiro YAMASHITA of Musashino-shi JP for nippon telegraph and telephone corporation, Kiyohiko ITOKAWA of Musashino-shi JP for nippon telegraph and telephone corporation, Yasuyoshi KOJIMA of Musashino-shi JP for nippon telegraph and telephone corporation, Takeshi ONIZAWA of Musashino-shi JP for nippon telegraph and telephone corporation, Kazumitsu SAKAMOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Tomoya KAGEYAMA of Musashino-shi JP for nippon telegraph and telephone corporation
IPC Code(s): H04W40/06, H04W48/16, H04W76/10
CPC Code(s): H04W40/06
Abstract: a wireless communication system includes a first communication apparatus that moves, a second communication apparatus that moves, and a reception apparatus. a first control unit of the first communication apparatus, when an own apparatus can communicate with any of the reception apparatuses, transmits transmission data acquired by the own apparatus from a first communication unit to the reception apparatus, and, when the own apparatus cannot communicate with any of the reception apparatuses, transmits the transmission data from a second communication unit to the second communication apparatus capable of communicating with the own apparatus. a second control unit of the second communication apparatus transmits the transmission data received by a third communication unit from the first communication apparatus from a fourth communication unit to a reception apparatus capable of communicating with the own apparatus.
Inventor(s): Hayato FUKUZONO of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Keita KURIYAMA of Musashino-shi, Tokyo JP for nippon telegraph and telephone corporation, Masafumi YOSHIOKA 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): H04W52/20, H04W52/24, H04W52/52
CPC Code(s): H04W52/20
Abstract: a transmission device includes: a transmission signal amplifier enabled to vary transmission power; a transmission power control unit that controls the transmission power; an error rate characteristic estimation unit that estimates an error rate of a reception signal in a reception device of a communication partner, and a reception unit that receives information on an snr in the reception device. the error rate characteristic estimation unit executes: processing of estimating a constellation corresponding to a modulation scheme and reflecting a specification regarding an input-output characteristic of the transmission signal amplifier on the basis of the transmission power, and processing of estimating the error rate on the basis of a characteristic of the constellation and the snr. the transmission power control unit controls the transmission power such that the error rate satisfies a predetermined requirement.
Inventor(s): Daisuke GOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Fumihiro YAMASHITA of Musashino-shi JP for nippon telegraph and telephone corporation, Kiyohiko ITOKAWA of Musashino-shi JP for nippon telegraph and telephone corporation, Yasuyoshi KOJIMA of Musashino-shi JP for nippon telegraph and telephone corporation, Tomoya KAGEYAMA of Musashino-shi JP for nippon telegraph and telephone corporation, Kazumitsu SAKAMOTO of Musashino-shi JP for nippon telegraph and telephone corporation, Takeshi ONIZAWA of Musashino-shi JP for nippon telegraph and telephone corporation
IPC Code(s): H04W72/20, H04W64/00, H04W84/06
CPC Code(s): H04W72/20
Abstract: a wireless communication system includes a transmission apparatus and a communication apparatus that moves. further, the wireless communication system includes a statistics calculation unit, an information generation unit, and a notification unit. the statistics calculation unit acquires a transmission condition used for a first radio signal transmitted from the transmission apparatus in an area and normally received by a reception unit of the communication apparatus, and generates statistical information of the acquired transmission condition. the information generation unit extracts a transmission condition having a high probability that a radio signal is normally received on the basis of the statistical information, and generates transmission control information indicating the extracted transmission condition. the notification unit notifies the transmission apparatus in the area of the transmission control information. a transmission control unit of the transmission apparatus determines a transmission condition of the radio signal on the basis of the transmission control information, and transmits a second radio signal from a wireless transmission unit that transmits a radio signal to the communication apparatus according to the determined transmission condition.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION patent applications on March 20th, 2025
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- A61M21/02
- A61M21/00
- CPC A61M21/02
- Nippon telegraph and telephone corporation
- G02B6/02
- CPC G02B6/02366
- G06F9/455
- CPC G06F9/45558
- G06F13/28
- CPC G06F13/28
- G06F16/3329
- G06F16/176
- G06V30/148
- CPC G06F16/3329
- G06F21/64
- CPC G06F21/64
- G06F30/20
- CPC G06F30/20
- G06Q10/0631
- G06Q10/0635
- G06Q50/22
- CPC G06Q10/06312
- G06Q10/0639
- CPC G06Q10/0639
- G06T5/70
- G06V10/74
- CPC G06T5/70
- G06T17/00
- CPC G06T17/00
- G06T19/20
- G09F9/37
- CPC G09F9/375
- G10K11/178
- CPC G10K11/17823
- G10L25/60
- G10L15/22
- CPC G10L25/60
- H01Q3/46
- CPC H01Q3/46
- H04B7/185
- H04W52/02
- CPC H04B7/18513
- H04B10/272
- H04B10/032
- H04L12/44
- H04L41/084
- CPC H04B10/272
- H04B10/516
- H04B10/27
- CPC H04B10/5161
- H04B17/318
- CPC H04B17/318
- H04J14/02
- H04J14/06
- CPC H04J14/02216
- H04L12/18
- G06T13/80
- CPC H04L12/1822
- H04L43/0852
- H04L43/103
- CPC H04L43/0852
- H04L45/037
- H04L47/24
- CPC H04L45/037
- H04L67/06
- CPC H04L47/2458
- H04L47/283
- H04W28/06
- CPC H04L47/283
- H04N21/24
- CPC H04N21/2408
- H04W40/06
- H04W48/16
- H04W76/10
- CPC H04W40/06
- H04W52/20
- H04W52/24
- H04W52/52
- CPC H04W52/20
- H04W72/20
- H04W64/00
- H04W84/06
- CPC H04W72/20
