Patents by Inventor Masakazu Ono
Masakazu Ono has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250015864Abstract: Provided is a base station including: an antenna that emits at least one searching radio beam for searching for a communication terminal and a communication radio beam for communicating with a communication terminal; and at least one processor that executes a transmission process of simultaneously transmitting, from the antenna, a plurality of searching radio beams that are oriented in directions which are different from each other, a reception process of receiving radio waves transmitted from a communication terminal in accordance with the plurality of searching radio beams simultaneously transmitted in the transmission process, and a communication process of communicating, with use of the communication radio beam, with the communication terminal that transmitted the radio waves which were received in the reception process.Type: ApplicationFiled: June 26, 2024Publication date: January 9, 2025Applicant: NEC CorporationInventors: Kohei YOSHIDA, Masakazu ONO
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Publication number: 20240405429Abstract: An antenna element receives a first radio wave and outputs a transmission signal, and receives a second radio wave and outputs a reception signal. A phase conversion unit applies a predetermined phase shift amount to a signal to be input and then output the signal. A switch connects the antenna element to one of the phase conversion unit and external receiver. When the first radio wave enters the antenna, the switch connects the antenna element to the phase conversion unit, and the transmission signal to which the predetermined phase shift amount has been applied is radiated from the antenna element. A third radio wave radiated from each of a plurality of RIS elements is deflected in a predetermined direction. When the second radio wave enters the antenna, the switch connects the antenna element to the external receiver, and the external receiver receives the reception signal.Type: ApplicationFiled: May 7, 2024Publication date: December 5, 2024Applicant: NEC CorporationInventors: Shingo WATANABE, Masakazu ONO, Kenji WAKAFUJI, Kohei YOSHIDA
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Publication number: 20240396622Abstract: A control apparatus receives a request for a resource reservation in a non-terrestrial network (NTN) for a path from a first node to a second node that passes through a terrestrial network (TN) and the NTN. In response to the request, the control apparatus transmits a response indicating acceptance of the resource reservation without waiting for resources of a first partial path in the NTN to actually be reserved for the path. After one or more links have been established in the NTN and the resources for the first partial path have been reserved, the control apparatus controls the concatenation of the first partial path with a second partial path for which resources have previously been reserved in the TN.Type: ApplicationFiled: May 9, 2024Publication date: November 28, 2024Applicant: NEC CorporationInventors: Kazushi Sugyo, Masakazu Ono
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Publication number: 20240214831Abstract: A communication control apparatus which controls communication between a plurality of communication terminals each located in any one of a plurality of areas and a plurality of base station includes at least one processor, the at least one processor carrying out a control process in which a directivity direction of each of antennas of the plurality of communication terminals is determined, on the basis of: terminal location prediction information in which locations of the plurality of communication terminals are predicted; and an electric wave environment database in which the plurality of base stations, beam directions of respective electric waves from the base stations, the plurality of areas, and reception powers of the respective electric waves in the plurality of areas are associated with each other.Type: ApplicationFiled: December 19, 2023Publication date: June 27, 2024Applicant: NEC CorporationInventors: Kohei Yoshida, Masakazu Ono, Junichi Funada, Kenji Wakafuji, Shingo Watanabe, Kazushi Sugyo, Kazuyuki Hayashi
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Publication number: 20240214972Abstract: A communication control system includes at least one processor, and the at least one processor carries out: a predicting process of making predictions of a future status of communication of a communication system in a plurality of stages; and a controlling process of performing control of the communication system, the control being based on a result of a prediction in each of the plurality of stages, and in the controlling process, the at least one processor determines, in accordance with the result of the prediction in one of the plurality of stages, whether it is necessary to move the air vehicle and controls the air vehicle.Type: ApplicationFiled: December 20, 2023Publication date: June 27, 2024Applicant: NEC CorporationInventors: Kazuyuki HAYASHI, Masakazu Ono, Junichi Funada, Kenji Wakafuji, Kohei Yoshida
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Publication number: 20240210523Abstract: An amplifier amplifies an input signal. A radiation unit radiates a radio wave into space, based on the input signal amplified by the amplifier. A first reflection unit reflects the radio wave radiated from the radiation unit. A second reflection unit configured as a reconfigurable intelligent metasurface (RIS) reflecting plate reflects the radio wave from the first reflection unit and thereby transmits the radio wave to a transmission target. A control unit controls the second reflection unit. The second reflection unit reflects the radio wave at a target reflection angle that represents a reflection angle toward the transmission target, by reflecting the radio wave at a reflection angle acquired by adding an offset to a reflection angle specified by the control unit, based on the target reflection angle.Type: ApplicationFiled: December 18, 2023Publication date: June 27, 2024Applicant: NEC CorporationInventors: Shingo WATANABE, Masakazu Ono, Kenji Wakafuji
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Publication number: 20240213671Abstract: A transmission apparatus according to one aspect of the present disclosure includes an antenna that emits a radio wave to space, a reflector that reflects a radio wave emitted from the antenna, and a reconfigurable intelligent surface (RIS) reflecting plate that reflects a radio wave from the reflector and thereby transmits the reflected radio wave to a transmission target.Type: ApplicationFiled: December 14, 2023Publication date: June 27, 2024Applicant: NEC CorporationInventors: Shingo Watanabe, Kenji Wakafuji, Masakazu Ono
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Publication number: 20240214045Abstract: To provide a communication terminal apparatus, a communication satellite apparatus, and a satellite communication system, capable of facilitating rapid determination of the direction of a beam. A communication terminal apparatus (10) is a communication terminal apparatus configured to communicate with a communication satellite apparatus (20) by means of a radio beam, the apparatus including: an antenna (11) configured to receive a plurality of beacons (Fa1 to Fa3) from at least one communication satellite apparatus, and to transmit and receive a directional radio beam; and at least one processor executing a control process of determining a plurality of candidate directions of the radio beam to be transmitted, on the basis of information included in the plurality of beacons.Type: ApplicationFiled: December 20, 2023Publication date: June 27, 2024Applicant: NEC CorporationInventors: Kazushi SUGYO, Shingo WATANABE, Kenji WAKAFUJI, Masakazu ONO
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Publication number: 20240187171Abstract: A communication apparatus according to the present disclosure includes a receiver configured to receive upward data being transmitted from a terminal during an upward period from a terminal transmission start time to a terminal transmission end time in an upward slot, during an own apparatus reception period being equal in length to the upward period from an own apparatus reception start time being later than the terminal transmission start time by a propagation delay time; and a transmitter configured to transmit downward data during an own apparatus transmission period being equal in length to a downward period from an own apparatus transmission start time being earlier than a terminal reception start time by the propagation delay time, in such a way that the terminal receives the downward data during the downward period from the terminal reception start time to a terminal reception end time in a downward slot.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: NEC CorporationInventors: Shingo WATANABE, Kenji WAKAFUJI, Masakazu ONO
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Publication number: 20240176439Abstract: Provided is a display antenna including a display including a plurality of light emitters arranged in a grid, an antenna array having an antenna assembly in which a plurality of patch antennas through which light in a wavelength band of a visible region is transmitted is disposed in a grid, the antenna array being disposed to be superimposed on the display, and a phase shifter disposed in a gap region sandwiched between the plurality of light emitters, connected to at least one of the plurality of patch antennas, and configured to shift a signal to be transmitted and received.Type: ApplicationFiled: November 22, 2023Publication date: May 30, 2024Applicant: NEC CorporationInventors: Ryota NIHEI, Junichi FUNADA, Kenji WAKAFUJI, Kazuyuki HAYASHI, Kohei YOSHIDA, Shingo WATANABE, Kazushi SUGYO, Masakazu ONO, Fujio OKUMURA
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Publication number: 20240178576Abstract: Provided is an antenna device including an antenna array including a plurality of patch antennas arrayed in a grid, a first switch group including a first switch disposed on a wiring line connecting two adjacent patch antennas, and a second switch group including a second switch disposed on a wiring line between an antenna assembly formed by at least four adjacent patch antennas and a signal source connected to at least one patch antenna constituting the antenna assembly.Type: ApplicationFiled: November 22, 2023Publication date: May 30, 2024Applicant: NEC CorporationInventors: Ryota NIHEI, Junichi FUNADA, Kenji WAKAFUJI, Kazuyuki HAYASHI, Kohei YOSHIDA, Shingo WATANABE, Kazushi SUGYO, Masakazu ONO, FUJIO OKUMURA
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Publication number: 20240146405Abstract: A control apparatus capable of exhibiting the diversity effect in a hybrid mobile communication system using a terrestrial communication apparatus and a non-terrestrial communication apparatus is provided.Type: ApplicationFiled: October 13, 2023Publication date: May 2, 2024Applicant: NEC CorporationInventors: Kenji WAKAFUJI, Junichi FUNADA, Kohei YOSHIDA, Masakazu ONO, Kazuyuki HAYASHI
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Publication number: 20240146400Abstract: At least one processor included in a server carries out: an acquiring process of acquiring, from a communication terminal configured to communicate with low earth orbit satellite equipment, information which indicates a communication condition in the communication terminal regarding communication with the low earth orbit satellite equipment; and a controlling process of referring to a radio wave map of a region including a location of the communication terminal and the information, to control an air vehicle configured to measure an attenuation of a radio wave between the air vehicle and the communication terminal.Type: ApplicationFiled: October 19, 2023Publication date: May 2, 2024Applicant: NEC CorporationInventors: Kazuyuki HAYASHI, Masakazu Ono, Junichi Funada, Kenji Wakafuji, Kohei Yoshida
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Patent number: 11101998Abstract: A communication device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: according to synchronization accuracy representing a frequency of timings at which a cryptosystem used for encryption communication between the communication device and another communication device can be changed, selecting the cryptosystem with different processing load on cryptographic processing in the encryption communication; and executing at least one of encryption processing and decryption processing on communication data with the another communication device by using the cryptosystem selected.Type: GrantFiled: October 2, 2017Date of Patent: August 24, 2021Assignee: NEC CORPORATIONInventor: Masakazu Ono
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Patent number: 11082223Abstract: A communication device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: storing device information that is information stored commonly in one or more communication devices; generating clock information representing timing by using a periodic clock signal; selecting at least a part of the device information according to the clock information; generating selection information that is different information for each piece of the clock information from at least a part of the device information selected; generating an encryption key by using at least the clock information and the selection information generated; and executing at least one of encryption processing and decryption processing on communication data by using the encryption key generated.Type: GrantFiled: October 2, 2017Date of Patent: August 3, 2021Assignee: NEC CORPORATIONInventor: Masakazu Ono
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Patent number: 10779132Abstract: A processor (103) in a wireless terminal (10) executes a communication service application to thereby perform an operation as a client for using a communication service. Further, in an abnormal situation where the wireless terminal (10) cannot access a server system (50) of an operator of the communication service, the processor (103) executes a predetermined activation procedure in the wireless terminal (10) without passing through the server system (50) to thereby activate a special account in the wireless terminal (10). This makes it possible, for example, to perform communication by the special account using an online service application installed in the wireless terminal during an abnormal situation where the wireless terminal cannot access the online service server.Type: GrantFiled: July 22, 2015Date of Patent: September 15, 2020Assignee: NEC CORPORATIONInventors: Shingo Watanabe, Shigeru Asai, Hideto Shibouta, Kenji Wakafuji, Masakazu Ono, Masato Kudou
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Patent number: 10708820Abstract: A node in a DTN includes: a memory; and a processor coupled to the memory and configured to execute data transfer processing for the DTN, wherein the data transfer processing including: receiving a plurality of bundles to be transferred to a same destination node on the DTN, each of the plurality of bundles including any one of a plurality of data segments acquired by dividing data of a content; deleting a part of the bundles from among the plurality of bundles without transferring to any other node or compressing a data size of a payload of the part of the bundles in accordance with a communication status of the DTN; and transmitting either a rest of the bundles excluding the deleted part of the bundles or the plurality of bundles including the part of the bundles having the compressed payloads to the DTN for transmitting to the destination node.Type: GrantFiled: December 12, 2018Date of Patent: July 7, 2020Assignee: NEC CORPORATIONInventors: Masakazu Ono, Shigeru Asai, Kenji Wakafuji, Hideto Shibohta, Shingo Watanabe, Masato Kudou
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Patent number: 10637789Abstract: A wireless terminal device (1) for use in a store-and-forward type wireless network includes a wireless communication unit (11), a memory (12), and a control unit (13). The memory (12) is coupled to the wireless communication unit (11) and is configured to store messages transferred via the wireless network. The control unit (13) is configured to adjust, based on first information, at least one of a maximum number and maximum retention time of messages stored in the memory (12). The first information relates to a degree of contribution of the wireless terminal device (1) to success in sending messages from a source node to a destination node via the wireless network. It is thus possible to provide, for example, an efficient memory control method suitable for a store-and-forward type wireless network.Type: GrantFiled: November 4, 2014Date of Patent: April 28, 2020Assignee: NEC CORPORATIONInventors: Masato Kudou, Masakazu Ono
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Patent number: 10375605Abstract: A node in a DTN includes: a memory; and a processor coupled to the memory and configured to execute data transfer processing for the DTN, wherein the data transfer processing including: receiving a plurality of bundles to be transferred to a same destination node on the DTN, each of the plurality of bundles including any one of a plurality of data segments acquired by dividing data of a content; deleting a part of the bundles from among the plurality of bundles without transferring to any other node or compressing a data size of a payload of the part of the bundles in accordance with a communication status of the DTN; and transmitting either a rest of the bundles excluding the deleted part of the bundles or the plurality of bundles including the part of the bundles having the compressed payloads to the DTN for transmitting to the destination node.Type: GrantFiled: May 27, 2015Date of Patent: August 6, 2019Assignee: NEC CORPORATIONInventors: Masakazu Ono, Shigeru Asai, Kenji Wakafuji, Hideto Shibohta, Shingo Watanabe, Masato Kudou
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Publication number: 20190238332Abstract: A communication device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: storing device information that is information stored commonly in one or more communication devices; generating clock information representing timing by using a periodic clock signal; selecting at least a part of the device information according to the clock information; generating selection information that is different information for each piece of the clock information from at least a part of the device information selected; generating an encryption key by using at least the clock information and the selection information generated; and executing at least one of encryption processing and decryption processing on communication data by using the encryption key generated.Type: ApplicationFiled: October 2, 2017Publication date: August 1, 2019Applicant: NEC CorporationInventor: Masakazu ONO