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公开(公告)号：US20240214831A1
公开(公告)日：2024-06-27
申请号：US18544941
申请日：2023-12-19
Applicant: NEC Corporation
Inventor： Kohei Yoshida , Masakazu Ono , Junichi Funada , Kenji Wakafuji , Shingo Watanabe , Kazushi Sugyo , Kazuyuki Hayashi
Abstract: 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.
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公开(公告)号：US12082136B2
公开(公告)日：2024-09-03
申请号：US17536337
申请日：2021-11-29
Applicant: NEC Corporation
Inventor： Shingo Watanabe
CPC classification number: H04W56/001 , H04L7/041
Abstract: A radio communication apparatus makes it possible to prevent contents of communication from being intercepted. The radio communication apparatus includes a generation unit configured to generate a first unique word based on operation time information of the radio communication apparatus before communication with a radio communication apparatus is started, and generate, for each radio frame, an ith unique word (i: an integer equal to or greater than two) based on an (i−1)th unique word when the communication is started, and a transmitting unit configured to transmit a first radio frame including the first unique word and an ith radio frame including the ith unique word to the radio communication apparatus.
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公开(公告)号：US20240213671A1
公开(公告)日：2024-06-27
申请号：US18539720
申请日：2023-12-14
Applicant: NEC Corporation
Inventor： Shingo Watanabe , Kenji Wakafuji , Masakazu Ono
IPC: H01Q3/46
CPC classification number: H01Q3/46
Abstract: 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.
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公开(公告)号：US10779132B2
公开(公告)日：2020-09-15
申请号：US15528183
申请日：2015-07-22
Applicant: NEC Corporation
Inventor： Shingo Watanabe , Shigeru Asai , Hideto Shibouta , Kenji Wakafuji , Masakazu Ono , Masato Kudou
IPC: G06F15/16 , H04W4/12 , H04W4/029 , H04M11/00 , H04W4/90 , H04L12/58 , H04W84/12 , H04W84/18 , H04W88/06
Abstract: 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.
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公开(公告)号：US10708820B2
公开(公告)日：2020-07-07
申请号：US16217160
申请日：2018-12-12
Applicant: NEC Corporation
Inventor： Masakazu Ono , Shigeru Asai , Kenji Wakafuji , Hideto Shibohta , Shingo Watanabe , Masato Kudou
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US10375605B2
公开(公告)日：2019-08-06
申请号：US15324035
申请日：2015-05-27
Applicant: NEC Corporation
Inventor： Masakazu Ono , Shigeru Asai , Kenji Wakafuji , Hideto Shibohta , Shingo Watanabe , Masato Kudou
Abstract: 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.
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公开(公告)号：US12293033B2
公开(公告)日：2025-05-06
申请号：US18517546
申请日：2023-11-22
Applicant: NEC Corporation
Inventor： Ryota Nihei , Junichi Funada , Kenji Wakafuji , Kazuyuki Hayashi , Kohei Yoshida , Shingo Watanabe , Kazushi Sugyo , Masakazu Ono , Fujio Okumura
Abstract: 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.
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公开(公告)号：US12249768B2
公开(公告)日：2025-03-11
申请号：US18517462
申请日：2023-11-22
Applicant: NEC Corporation
Inventor： Ryota Nihei , Junichi Funada , Kenji Wakafuji , Kazuyuki Hayashi , Kohei Yoshida , Shingo Watanabe , Kazushi Sugyo , Masakazu Ono , Fujio Okumura
IPC: G06F3/0488 , G06F3/041 , G06F3/044 , H01Q1/22 , H01Q21/06
Abstract: 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.
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公开(公告)号：US20240380096A1
公开(公告)日：2024-11-14
申请号：US18642879
申请日：2024-04-23
Applicant: NEC Corporation
Inventor： Ryota NIHEI , Shingo Watanabe , Fujio Okumura
Abstract: Provided is a display antenna including a display including a plurality of light emitters arranged in a lattice pattern, a touch sensor that is disposed to overlap the display and in which a plurality of touch electrodes transmitting light in a wavelength band of a visible region are arranged in a lattice pattern, and an antenna array that is disposed to overlap the touch sensor and in which a plurality of patch antennas transmitting the light in the wavelength band of the visible region are arranged in a lattice pattern. The touch electrode also serves as a ground electrode of the patch antenna disposed above the touch electrode.
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公开(公告)号：US10128976B2
公开(公告)日：2018-11-13
申请号：US15327077
申请日：2015-05-27
Applicant: NEC Corporation
Inventor： Hideto Shibohta , Shigeru Asai , Kenji Wakafuji , Masakazu Ono , Shingo Watanabe , Masato Kudou
IPC: H04K3/00
Abstract: A radio wave jamming system (1) comprises a plurality of radio transmitters (10) that are adapted to transmit respective jamming signals (11) including substantially the same frequency. The plurality of radio transmitters (10) are further adapted to temporally change at least one of the transmission phases of the jamming signals (11), which are to be transmitted from the plurality of radio transmitters (10), so as to temporally change the phase differences among the jamming signals (11) when the jamming signals (11) transmitted from the plurality of radio transmitters (10) arrive at a particular site (50). Thus, for example, a radio wave jamming system that can be constituted by small-output radio devices can be provided.
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