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1. 发明申请

US20230140715A1 OPTICAL TRANSMISSION DEVICE, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION METHOD 有权
公开(公告)号：US20230140715A1
公开(公告)日：2023-05-04
申请号：US17913388
申请日：2020-03-27
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Naotaka SHIBATA , Hirotaka UJIKAWA
IPC分类号： H04B10/27
摘要： An optical transmission device which performs relaying between a terminal device and a server via an optical network device, the terminal device and the server establishing connection with each other, includes a request detection unit which detects a connection establishment request transmitted to the server by the optical network device on the basis of a connection establishment request transmitted to the server by the terminal device, a response detection unit which detects an acknowledgment transmitted to the terminal device by the server on the basis of the connection establishment request detected by the request detection unit, and a band allocation unit which, if the response detection unit detects the acknowledgment, performs allocation so as to expand a band over which the optical network device is capable of transmission to the server, regardless of presence or absence of a buffer amount notification to be transmitted by the optical network device.

2. 发明申请

US20230139615A1 Optical Semiconductor Chip 有权
公开(公告)号：US20230139615A1
公开(公告)日：2023-05-04
申请号：US17915281
申请日：2020-04-17
申请人： Nippon Telegraph and Telephone Corporation
发明人： Shigeru Kanazawa , Yuta Ueda , Takahiko Shindo , Meishin Chin
IPC分类号： H01S5/00 , G02F1/015 , G02F1/025
摘要： An optical semiconductor chip of the present disclosure includes a high frequency line between an electrode pad receiving a modulation signal and a modulation electrode on the optical waveguide having a light absorption layer. The depletion layer capacitance generated in the light absorption layer is canceled by an inductor component of the high frequency line. When a portion directly below the high frequency line is embedded with a low-dielectric-constant material or is made hollow, the parasitic capacitance is further reduced. The high frequency line may have a zigzag shape as well as a linear shape. The electrode pad on the optical semiconductor chip can be connected to other substrates including RF lines for modulation signal input by bumps or wire bonding.

3. 发明申请

US20230138720A1 EXECUTION PROCEDURE SEARCH DEVICE, METHOD AND PROGRAM 有权
公开(公告)号：US20230138720A1
公开(公告)日：2023-05-04
申请号：US17913478
申请日：2020-04-21
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takeru INOUE , Atsushi TANIGUCHI , Toru MANO , Kazuya ANAZAWA , Kohei MIZUNO , Kengo NAKAMURA , Masaaki NISHINO , Norihito YASUDA , Masakazu ISHIHATA
IPC分类号： G06F30/20
摘要： An object of the present disclosure is to search for a command sequence, while preventing overlooking as much as possible, in a shorter period of time than that of searching using only an actual system is used.
The present disclosure provides an execution procedure searching device that searches for a command sequence to be set for a plurality of devices constituting a system. The execution procedure searching device performs a first step for determining whether a simulator of the system having executed a temporary update command sequence satisfies a predetermined policy, and executes, until satisfaction for the predetermined policy of the simulator, processing for: performing a second step for determining whether the simulator approaches a state where the predetermined policy is satisfied, with addition of one new candidate command of one or more new candidate commands to the temporary update command sequence on condition that the simulator does not satisfy the predetermined policy; and deleting a command at the end of the temporary update command sequence on condition that the simulator does not approach the state where the predetermined policy is satisfied, with addition of any one of the new candidate commands; and then returning to the first step.

4. 发明申请

US20230138232A1 CONVERSION LEARNING APPARATUS, CONVERSION LEARNING METHOD, CONVERSION LEARNING PROGRAM AND CONVERSION APPARATUS 有权
公开(公告)号：US20230138232A1
公开(公告)日：2023-05-04
申请号：US17794227
申请日：2020-01-30
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirokazu KAMEOKA , Ko TANAKA , Takuhiro KANEKO , Nobukatsu HOJO
IPC分类号： G10L21/007 , G10L25/30 , G06N20/20 , G06F17/16
摘要： A conversion learning device includes: a source encoding unit that converts, by using a first machine learning model, a feature amount sequence of a source domain that is a characteristic of conversion-source content data, into a first internal representation vector sequence that is a matrix in which internal representation vectors at individual locations of the feature amount sequence of the source domain are arranged; a target encoding unit that converts, by using a second machine learning model, a feature amount sequence of a target domain that is a characteristic of conversion-target content data, into a second internal representation vector sequence that is a matrix in which internal representation vectors at individual locations of the feature amount sequence of the target domain are arranged; an attention matrix calculation unit that calculates, by using the first internal representation vector sequence and the second internal representation vector sequence, an attention matrix that is a matrix mapping the individual locations of the feature amount sequence of the source domain to the individual locations of the feature amount sequence of the target domain, and calculates a third internal representation vector sequence that is a product of an internal representation vector sequence calculated by linear conversion of the first internal representation vector sequence and the attention matrix; a target decoding unit that calculates, by using the third internal representation vector sequence, a feature amount sequence of a conversion domain that is used to convert the source domain into the conversion domain, by using a third machine learning model; and a learning execution unit that causes at least one of the target encoding unit and the target decoding unit to learn such that a distance between a submatrix of the feature amount sequence of the target domain and a submatrix of the feature amount sequence of the conversion domain becomes shorter.

5. 发明申请

US20230135477A1 SIGNAL TRANSFER SYSTEM, SIGNAL TRANSFER DEVICE, SIGNAL TRANSFER METHOD AND SIGNAL TRANSFER PROGRAM 有权
公开(公告)号：US20230135477A1
公开(公告)日：2023-05-04
申请号：US17910291
申请日：2020-03-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Naotaka SHIBATA , Hiroko NOMURA , Keita TAKAHASHI , Tomoya HATANO
IPC分类号： H04W72/23 , H04W88/08
摘要： In a signal transfer system including a signal transfer management apparatus and a plurality of signal transfer apparatuses connected in multiple stages and forming a network between a distribution station apparatus and a central station apparatus, a signal transfer apparatus on an upper side among the plurality of signal transfer apparatuses transmits a timing adjustment request to at least one of a plurality of signal transfer apparatuses on a lower side when discard of a signal received from the plurality of signal transfer apparatuses on the lower side has been detected or when an amount of traffic of a plurality of signals received from the plurality of signal transfer apparatuses on the lower side exceeds a predetermined threshold value, and the signal transfer apparatus on the lower side that has received the timing adjustment request from the signal transfer apparatus on the upper side adjusts opening and closing timings of a gate based on the timing adjustment request. This can prevent the occurrence of a microburst.

6. 发明授权

US11640330B2 Failure estimation support apparatus, failure estimation support method and failure estimation support program 有权
公开(公告)号：US11640330B2
公开(公告)日：2023-05-02
申请号：US17607137
申请日：2019-05-28
申请人： Nippon Telegraph and Telephone Corporation
发明人： Vuhung Le
IPC分类号： G06F11/07 , G06N5/02 , G06N5/025
摘要： A failure estimation support device 2 includes: a first calculation unit 21 configured to calculate single failure occurrence probabilities of individual single rules for each single rule relating to a single failure from past failure occurrence data; a second calculation unit 22 configured to calculate multiple failure occurrence probabilities that multiple failures occur in association for each combination of multiple single rules using the single failure occurrence probabilities; and a correlation rule generation unit 23 configured to select the combination of the multiple failure occurrence probabilities greater than a predetermined threshold among the multiple failure occurrence probabilities as a correlation rule, and the correlation rule is used as training data for making a learned model which estimates a failure factor perform machine learning together with the single rule.

7. 发明授权

US11640314B2 Service provision system, resource allocation method, and resource allocation program 有权
公开(公告)号：US11640314B2
公开(公告)日：2023-05-02
申请号：US16970591
申请日：2019-02-14
申请人： Nippon Telegraph and Telephone Corporation
发明人： Eriko Iwasa , Makoto Hamada
IPC分类号： G06F9/455 , G06F9/50 , G06F11/20
摘要： The utilization efficiency of physical resources is increased by allocating an occupied physical CPU core to a virtual CPU core in a virtual machine in a working system and allocating a shared physical CPU core to a virtual CPU core of a virtual machine in a standby system in a state in which the systems are active. A dedicated activation core, a shared core, or an occupied core is allocated when the respective virtual machines are activated, the resource allocation is changed after the respective virtual machines are activated, and the shared core and the occupied core are appropriately assigned to the working system and the standby system. In a case in which a failure occurs in the virtual machine of the working system, allocation of the shared core allocated to the other virtual machine in the pair is changed into an occupied state to avoid degradation of performance.

8. 发明申请

US20230130902A1 TEXT GENERATION APPARATUS, TEXT GENERATION LEARNING APPARATUS, TEXT GENERATION METHOD, TEXT GENERATION LEARNING METHOD AND PROGRAM 有权
公开(公告)号：US20230130902A1
公开(公告)日：2023-04-27
申请号：US17908212
申请日：2020-03-03
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Itsumi SAITO , Kyosuke NISHIDA , Kosuke NISHIDA , Hisako ASANO , Junji TOMITA
IPC分类号： G06F40/40 , G06F40/279 , G06F40/126
摘要： A text generation apparatus includes a processor and a memory storing program instructions that cause the processor to receive an input sentence including one or more words and generate a sentence: estimate an importance of each word included in the input sentence and encode the input sentence; and take the importance and a result of encoding the input sentence as inputs to generate the sentence based on the input sentence. The processor uses a neural network based on learned parameters. This improves the accuracy of sentence generation.

9. 发明申请

US20230130741A1 Circuit Integrated Antenna 有权
公开(公告)号：US20230130741A1
公开(公告)日：2023-04-27
申请号：US17912218
申请日：2020-04-20
申请人： Nippon Telegraph and Telephone Corporation
发明人： Go Itami , Hiroshi Hamada , Hideyuki Nosaka
IPC分类号： H01Q9/04 , H01Q13/08
摘要： Stub conductors are disposed so as to surround an outer periphery of a patch conductor and be spaced from the patch conductor with a gap positioned between the stub conductors and the patch conductor.

10. 发明授权

US11637575B2 Wireless communication apparatus and wireless communication method 有权
公开(公告)号：US11637575B2
公开(公告)日：2023-04-25
申请号：US17257269
申请日：2019-06-26
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Atsushi Ota , Kota Ito , Kazuto Goto , Yushi Shirato , Naoki Kita
IPC分类号： H04B1/10 , H04L27/26 , H04L5/00 , H04W72/04 , H04W72/0453
摘要： A first wireless communication apparatus assigns a pilot signal without an effective signal component at least in an adjacent frequency component to a generated transmit signal, and transmits the transmit signal including the pilot signal. A second wireless communication apparatus converts the received signal or a frequency-converted signal obtained by frequency conversion of the signal into a signal in a frequency domain, sets an approximate value of the distance between the second wireless communication apparatus and the first wireless communication apparatus, calculates a coefficient γk, based on the approximate value of the distance, the effective bandwidth, the speed of light, the number of FFT points, and the frequency component number, extracts a signal in the frequency domain, generates a phase noise compensated sampling signal, and reproduces data transmitted by the first wireless communication apparatus.

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