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11. 发明申请

US20230133100A1 COMMUNICATION SYSTEM AND ONU SYSTEM 有权
公开(公告)号：US20230133100A1
公开(公告)日：2023-05-04
申请号：US17911736
申请日：2020-03-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tomoya HATANO , Keita TAKAHASHI , Naotaka SHIBATA , Hiroko NOMURA
IPC分类号： H04Q11/00 , H04B10/61
摘要： One aspect of the present invention is a communication system for a passive optical network that includes: an OLT system including a first OLT (Optical Line Terminal), a second OLT, and an OLT control apparatus that controls the first OLT and the second OLT; a plurality of splitters that are connected between the first OLT and the second OLT using optical communication channels; and ONU systems that are connected to the respective splitters using optical communication channels, and each include a first session establishing unit that establishes a session with the first OLT, a second session establishing unit that establishes a session with the second OLT, and a signal processing unit that executes signal processing of an ONU (Optical Network Unit) based on an optical signal output from the first session establishing unit or the second session establishing unit.

12. 发明申请

US20230132674A1 OPTICAL COMMUNICATION NETWORK SYSTEM, OPTICAL NETWORK UNIT, AND OPTICAL COMMUNICATION METHOD 有权
公开(公告)号：US20230132674A1
公开(公告)日：2023-05-04
申请号：US17915708
申请日：2020-03-31
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takuya ABE , Satoshi NARIKAWA , Tomohiko IKEDA
IPC分类号： H04Q11/00 , H04B10/27
摘要： An object of the present disclosure is to enable an ONU to acquire ID information of terminal devices even when a network device is connected between the ONU and the terminal devices, and to thereby enable generation of a logical path between the ONU and the OLT. The present disclosure relates to an optical communication network system configured to connect terminal devices and a passive optical network (PON) system via a network device. The PON system includes an optical line terminal and an optical network unit connected using an optical transmission line. The optical network unit is configured to construct a tunnel to the network device, acquire ID information of the terminal devices connected to the network device from the terminal devices via the tunnel, and generates a logical path to the optical line terminal on the optical transmission line using the acquired ID information.

13. 发明授权

US11641659B2 Radio communication method, centralized control station, and base station 有权
公开(公告)号：US11641659B2
公开(公告)日：2023-05-02
申请号：US16976458
申请日：2019-02-25
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Toshiro Nakahira , Tomoki Murakami , Hirantha Abeysekera , Akiyoshi Inoki , Keisuke Wakao
IPC分类号： H04W72/04 , H04W72/51 , H04W28/16 , H04W72/53 , H04W72/541 , H04L5/00
摘要： [Problem] A base station includes a plurality of radio communication units individually supporting a plurality of communication capabilities, and controls a terminal station to be connected with the base station to select a radio communication unit according to a communication scheme of the terminal station.
[Solution] Provided is a radio communication method of a radio communication system. The radio communication system includes a plurality of base stations mounted with a plurality of radio communication units for which different communication schemes are settable, a terminal station configured to perform radio communication in a certain communication scheme, and a centralized control station configured to control the plurality of base stations. The radio communication method includes calculating, by the centralized control station, a setting policy of a communication scheme for each of the plurality of radio communication units of each of the plurality of base stations and a switching policy for the terminal station and the radio communication unit, and notifying the base station of the policies, setting, by the base station, the setting policy and the switching policy, notified from the centralized control station, for the radio communication unit, collecting, by the base station, communication scheme information of communication schemes selectable by the terminal station from the terminal station to be connected, and selecting, by the base station, a radio communication unit to be connected by the terminal station in accordance with the communication scheme information, the setting policy, and the switching policy.

14. 发明申请

US20230130343A1 Crystal Growing Condition Analysis Method, Crystal Growing Condition Analysis System, Crystal Growing Condition Analysis Program, and Data Structure for Crystal Growing Data 有权
公开(公告)号：US20230130343A1
公开(公告)日：2023-04-27
申请号：US17915398
申请日：2020-03-31
申请人： Nippon Telegraph and Telephone Corporation
发明人： Ryo Nakao , Takuya Otsuka , Tomonari Sato
IPC分类号： G16C20/10 , G16C20/70
摘要： An analysis method of crystal growth conditions includes a step of calculating an evaluation function on the basis of results obtained by measuring crystals grown under varied crystal growth conditions, a step of performing machine learning of the evaluation function, and a step of obtaining optimum crystal growth conditions from a result of the machine learning, wherein the evaluation function is based on a difference between crystal quality data of an ideal crystal and crystal quality data of the crystal having been grown.

15. 发明申请

US20230126470A1 INUNDATION DETECTION SYSTEM AND INUNDATION DETECTION METHOD 有权
公开(公告)号：US20230126470A1
公开(公告)日：2023-04-27
申请号：US17798101
申请日：2020-02-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Atsushi NAKAMURA , Nazuki HONDA , Hiroyuki OSHIDA
IPC分类号： G01M11/02
摘要： An object of the present invention is to provide an immersion detection system and an immersion detection method capable of eliminating module replacement in the occurrence of immersion and simplifying system management. An immersion detection system according to the present invention includes: an immersion detection sensor having two optical fibers connected in series such that end faces of the two optical fibers abut on each other with a predetermined gap; an optical measurer that causes test light with a plurality of wavelengths to enter an optical transmission line having a plurality of the immersion detection sensors connected in series with optical fibers and measures a return loss of the test light at the immersion detection sensor for each of the wavelengths and for each of the immersion detection sensors; and a determiner that averages, for each of the immersion detection sensors, the return losses for the wavelengths and performs threshold determination on the presence or absence of immersion.

16. 发明申请

US20230126419A1 TEXTURE PRESENTATION DEVICE, TEXTURE PRESENTATION METHOD, AND PROGRAM 有权
公开(公告)号：US20230126419A1
公开(公告)日：2023-04-27
申请号：US17913362
申请日：2020-04-24
申请人： Nippon Telegraph and Telephone Corporation
发明人： Arinobu NIIJIMA , Toki TAKEDA , Takafumi MUKOUCHI , Takashi SATO
IPC分类号： G08B6/00
摘要： A food texture presentation apparatus 1 of the present embodiment includes a force stimulation presentation unit 23, a vibration stimulation presentation unit 24, and a temperature stimulation presentation unit 25 that present different kinds of haptic stimuli in the oral cavity, a selection unit 11 that selects a haptic stimulus to be presented, according to the food texture, and a force stimulation controller 13, a vibration stimulation controller 14, and a temperature stimulation controller 15 that control respectively the force stimulation presentation unit 23, the vibration stimulation presentation unit 24, and the temperature stimulation presentation unit 25 that present the selected haptic stimulus.

17. 发明申请

US20230125209A1 TACTILE PRESENTATION APPARATUS, SELF-MOTION PRESENTATION SYSTEM, METHOD THEREFOR, AND PROGRAM 有权
公开(公告)号：US20230125209A1
公开(公告)日：2023-04-27
申请号：US17912463
申请日：2020-03-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Shinya TAKAMUKU , Hiroaki GOMI , Ryoma TANASE
IPC分类号： G06F3/01
摘要： A desired self-motion is presented to a user through a tactile stimulus that simulates a tactile stimulus produced by self-motion. A tactile presentation device (1) presents, to a body of the user, a simulated tactile stimulus that simulates a tactile stimulus produced when the user performs a desired self-motion. A control unit (31) generates a drive signal driving the tactile presentation device (1). A drive unit (32) presents the simulated tactile stimulus in accordance with the drive signal. The drive signal is generated on the basis of contact point motion information expressing motion arising at a contact point between the body of the user and the tactile presentation device (1) due to the self-motion. Assuming that the contact point is fixed with respect to an outside world, the contact point motion information corresponds to a change in a relative positional relationship between the body of the user and the contact point arising when the user performs the self-motion.

18. 发明申请

US20230125151A1 Bonding Wire and Method for Manufacturing the Same 有权
公开(公告)号：US20230125151A1
公开(公告)日：2023-04-27
申请号：US17912392
申请日：2020-04-07
申请人： Nippon Telegraph and Telephone Corporation
发明人： Toshiki Kishi , Kota Shikama
IPC分类号： H01L23/00
摘要： A bonding wire includes a hollow member made of an insulator and mounted such as to bridge ICs formed with interconnects, such that a plurality of open ends is each closed by abutting on a surface of the interconnect that is a connection target, and a connection member made of a conductor, filling inside of the hollow member such as to bond to the surface of the interconnect at a location where the hollow member abuts on the surface of the interconnect.

19. 发明授权

US11638228B2 Time comparison device and time quality monitoring method 有权
公开(公告)号：US11638228B2
公开(公告)日：2023-04-25
申请号：US17299118
申请日：2019-11-28
申请人： Nippon Telegraph and Telephone Corporation
发明人： Kaoru Arai , Hiroki Sakuma , Masahiro Nakagawa , Shunichi Tsuboi
IPC分类号： H04W56/00
摘要： [Problem] An object is to obtain a time quality of another GM with high accuracy on the basis of a GM a time quality of which is known already.
[Solution] A first TC 20 includes a time comparison unit 23 that calculates time difference information by comparing first time information of a first PTP processing unit 12 and second time information of a second PTP processing unit 22 with each other. In addition, a quality calculation device 5 measures time difference information until time difference information obtained by a time comparison unit 23 of the first TC 20 and time difference information obtained by a time comparison unit 43 of a second TC 40 match each other, and obtains a GM time quality of a second GM 30 on the basis of a transmission time error of the time transmission network 2 at a timing when both of pieces of the time difference information match each other.

20. 发明申请

US20230124354A1 SUPPORT APPARATUS, SUPPORT METHOD AND PROGRAM 有权
公开(公告)号：US20230124354A1
公开(公告)日：2023-04-20
申请号：US17910803
申请日：2020-12-14
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Wataru AKAHORI , Ai NAKANE , Momoko NAKATANI
IPC分类号： G06F40/30 , G06F40/253
摘要： An assistance apparatus according to an embodiment includes: a concreteness calculation unit for calculating, by using a plurality of predetermined words included in an input sentence and an answer expression describing an answer to at least one 5W1H sentence in the input sentence, concreteness indicating a degree to which the input sentence is concretely written; and a notification sentence creation unit for creating a notification sentence for encouraging a user to write a concrete sentence in a case in which the concreteness is lower than a predetermined threshold.

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