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公开(公告)号：US10531466B2
公开(公告)日：2020-01-07
申请号：US15809771
申请日：2017-11-10
申请人： KDDI CORPORATION
摘要： A communication apparatus that communicates with another communication apparatus detects a signal from the other communication apparatus, specifies an amount of a resource used to communicate a predetermined amount of data from the other communication apparatus to the communication apparatus, and transmits, to the other communication apparatus, one predetermined signal corresponding to the specified amount of the resource from a plurality of predetermined signals that are known in the communication apparatus and the other communication apparatus and respectively correspond to different amounts of a resource including at least one of a frequency and time used to communicate the predetermined amount of data.
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42.发明申请公开(公告)号：US20190387103A1
公开(公告)日：2019-12-19
申请号：US16555397
申请日：2019-08-29
申请人： KDDI CORPORATION
摘要： A device controller connected to a communication terminal and a plurality of devices via a network includes an acquisition unit configured to receive first control information for controlling a plurality of devices of predetermined type from the communication terminal, the first control information including specific information for identifying a control target device selected from the plurality of devices, a device identification unit configured to identify the control target device on the basis of the specific information included in the first control information, a generation unit configured to generate second control information for causing the control target device to execute control details indicated by the first control information, the second control information being different from the first control information, and a transmission unit configured to transmit the second control information.
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公开(公告)号：US10447863B2
公开(公告)日：2019-10-15
申请号：US16079930
申请日：2017-02-23
申请人： KDDI CORPORATION
摘要： A device controller connected to a communication terminal and a plurality of devices via a network includes an acquisition unit configured to receive first control information for controlling a plurality of devices of predetermined type from the communication terminal, the first control information including specific information for identifying a control target device selected from the plurality of devices, a device identification unit configured to identify the control target device on the basis of the specific information included in the first control information, a generation unit configured to generate second control information for causing the control target device to execute control details indicated by the first control information, the second control information being different from the first control information, and a transmission unit configured to transmit the second control information.
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公开(公告)号：US10404391B2
公开(公告)日：2019-09-03
申请号：US15540642
申请日：2015-12-25
申请人： KDDI CORPORATION
发明人： Bingxuan Zhao , Katsuo Yunoki
IPC分类号： H04J1/02 , H04L27/26 , H04L5/00 , H04W28/06 , H04J11/00 , H04W84/12 , H04W72/04 , H04W74/08 , H04L1/06 , H04L1/00 , H04L27/00
摘要： A wireless communication device transmits data to multiple wireless terminals at the same timing. The wireless communication device includes a complement calculation part configured to calculate the amount of complement for transmission data for each wireless terminal among multiple wireless terminals on multiple subcarriers distributed and assigned thereto, a complementation part configured to complement transmission data using the amount of complement calculated for each wireless terminal, and a transmitter configured to transmit the complemented transmission data to multiple wireless terminals via multiple subcarriers. The wireless communication device further includes a frame generator configured to generate frames (e.g. OFDMA frames) used to multiplex and transmit the complemented transmission data to multiple wireless terminals. The complement calculation part calculates the amount of complement based on the number of available subcarriers, which is determined via carrier sensing.
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45.发明申请公开(公告)号：US20190199524A1
公开(公告)日：2019-06-27
申请号：US16307681
申请日：2017-03-28
申请人： KDDI CORPORATION
CPC分类号： H04L9/0861 , G06F21/64 , G09C1/00 , H04L9/08 , H04L9/0894 , H04L9/14 , H04L9/32
摘要： Provided are a key generation device and an in-vehicle computer which is installed in a vehicle. The key generation device includes a vehicle interface, a key generation unit that generates first and second keys, an cryptographic processing unit that encrypts the first key with an initial key to generate first encrypted data and encrypts the second key with the first key to generate second encrypted data, an expected value calculation unit that calculates an expected value of stored data using the second key, and a verification unit that verifies a received measured value on the basis of the expected value, and the key generation device transmits the first and second encrypted data to the vehicle. The in-vehicle computer includes an interface unit, an cryptographic processing unit that decrypts the received first encrypted data, and decrypts the received second encrypted data, and a measured value calculation unit.
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46.发明申请公开(公告)号：US20190199458A1
公开(公告)日：2019-06-27
申请号：US16222303
申请日：2018-12-17
申请人： KDDI CORPORATION
发明人： Tadayuki FUKUHARA , Hiroyuki SHINBO
IPC分类号： H04B17/318 , H04W76/10
CPC分类号： H04B17/318 , H04W76/10 , H04W92/10
摘要： A threshold determination device aims to automatically determine and change a threshold regarding whether to permit a wireless connection between a base station device and a terminal device depending on wireless communication environments. The threshold determination device is adapted to the base station device configured to measure the received power of a connection request signal from the terminal device and is configured to determine a threshold regarding whether to permit the terminal device to be connected to the base station device in connection with a communication quality indicator (e.g. a user throughput or a terminal connection count). The base station device does not permit a wireless connection with the terminal device when the received power is lower than the threshold. The threshold determination device changes the threshold depending on a target value and a measured value of the communication quality indicator.
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公开(公告)号：US20190112806A1
公开(公告)日：2019-04-18
申请号：US16088515
申请日：2017-02-16
摘要： A film antenna 1 to which the present invention is applied includes: an antenna part 10 in which a dual-frequency antenna 12a and an antenna GND section 12b are formed; a feeding board 21 to which a coaxial cable 30 for feeding the antenna part 10 is connected; and a pressing member 23 which, together with the feeding board 21, sandwiches a contact point 13, coated with silver paste 22, of the antenna part 10, and electrically connects the contact point 13 and the feeding board 21 to one another.
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48.发明申请公开(公告)号：US20190109716A1
公开(公告)日：2019-04-11
申请号：US16082404
申请日：2017-03-14
申请人： KDDI CORPORATION
IPC分类号： H04L9/32 , H04L12/40 , B60R16/023 , H04L9/08
摘要： A communication network system, in which a transmission node for transmitting a message is connected to a reception node for receiving the message, is configured to periodically transmit a count-value notification message to notify a count value, which is used to generate and check a message authentication code for the message, to the transmission node and the reception node.
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公开(公告)号：US20180302907A1
公开(公告)日：2018-10-18
申请号：US15754868
申请日：2016-12-26
申请人： KDDI CORPORATION
发明人： Tsuyoshi NIINA
摘要： This information processing device includes an acquisition unit configured to acquire communication data, a priority determination unit configured to determine a priority for identifying a priority ranking in communication bandwidth allocation on the basis of the communication data, a preferential control information generation unit configured to generate preferential control information on the basis of a determination result of the priority determination unit, and a transmission unit configured to transmit device identification information for identifying a device which performs communication and the preferential control information to a communication device which relays communication.
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公开(公告)号：US10056990B2
公开(公告)日：2018-08-21
申请号：US15502672
申请日：2014-08-12
CPC分类号： H04B17/17 , H01Q1/246 , H01Q3/26 , H01Q3/267 , H01Q3/28 , H01Q3/34 , H04B17/00 , H04B17/12 , H04B17/14 , H04W24/00 , H04W88/08
摘要： The apparatus automatically corrects deformation of directivity in a vertical plane caused by abnormality in transmission paths and receiving paths. The apparatus includes transmission system detection means (13-1 to 13-4) configured to individually detect abnormality occurring in each of the transmission paths, receiving system detection means (23-1 to 23-4) configured to individually detect abnormality occurring in each of the receiving paths, and control means (30, 40) configured, if any abnormal transmission path has been detected by the transmission system detection means (13-1 to 13-4), to correct deformation of directivity of the transmission antenna in a vertical plane caused due to abnormality in the transmission path by changing and setting a phase and an amplitude of the transmission signal passing through a normal transmission path, and if any abnormal receiving path has been detected by the receiving system detection means (23-1 to 23-4), to correct deformation of directivity of the receiving antenna in a vertical plane caused due to abnormality in the receiving path by changing and setting a phase and an amplitude of the receiving signal passing through a normal receiving path.
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