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公开(公告)号:US20180239029A1
公开(公告)日:2018-08-23
申请号:US15524454
申请日:2016-01-26
Inventor: Jun SHIBATA , Toru OKADA , Katsunao TAKAHASHI , Kunihiko SAKAIBARA
IPC: G01S19/44
CPC classification number: G01S19/44
Abstract: The present disclosure is effective in easily estimating an integer value bias at a high speed. A processor of a positioning system, a positioning method, and a positioning station performs interference positioning through calculation processing based on positioning data of the base station and positioning data of the positioning station. A plurality of calculation processing items are performed in parallel with different time points as start time points. Thus, even in a case where a situation in which the time required for the calculation of a fix solution differs depending on time point at which time point the calculation processing starts, there is a possibility that one of a plurality of calculation processing items can calculate the fix solution at an earlier time than in a case where single calculation processing performs the calculation. Therefore, it is possible to easily estimate the integer value bias at the high speed.
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公开(公告)号:US20210396889A1
公开(公告)日:2021-12-23
申请号:US17287747
申请日:2019-08-26
Inventor: Kazuyuki YOSHINO , Kunihiko SAKAIBARA , Jun SHIBATA , Yasuhisa YAMAZAKI , Yoshimasa SHIROSAKI
Abstract: The present application: receives positioning data from each of a plurality of positioning terminals that have received positioning signals transmitted from a plurality of satellites; uses the received positioning data to detect, for each satellite, the difference between the positioning signal reception quality at a first positioning terminal and the positioning signal reception quality at at least one second positioning terminal; and uses the difference for each satellite to determine a satellite to be used for positioning computation for the first positioning terminal.
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公开(公告)号:US20190313215A1
公开(公告)日:2019-10-10
申请号:US16470830
申请日:2017-11-06
Inventor: Kunihiko SAKAIBARA , Jun SHIBATA , Toru OKADA , Yasuhisa YAMAZAKI , Kazuyuki YOSHINO
Abstract: A positioning system includes a receiver that receives a positioning signal from a positioning satellite and generates carrier phase information, a base station that receives the carrier phase information from the receiver, and a communication terminal that performs wireless communication with the base station. The base station transmits information including the carrier phase information and the position information of the receiver as a carrier positioning signal to the communication terminal and the communication terminal performs carrier positioning using the carrier positioning signal transmitted by the base station. Here, the base station encrypts the position information of the receiver, in the carrier positioning signal to be transmitted.
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公开(公告)号:US20220201424A1
公开(公告)日:2022-06-23
申请号:US17603635
申请日:2020-04-15
Inventor: Kunihiko SAKAIBARA , Takuji MAEDA , Nobuhiko ARASHIN , Kunio FURUTA , Jumpei SASAKI
Abstract: A wireless control device is provided with: a first wireless control unit that acquires first information including information indicating first positions of persons by using a first wireless method; a second wireless control unit that connects to wireless devices by using a second wireless method, and acquires second information that includes device identification information for identifying the wireless devices and information indicating second positions of the wireless devices; and an information control unit that selects the first position within a prescribed range from each second position, and specifies person identification information linked with the device identification information of the second position as the person identification information of a person present at the selected first position.
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公开(公告)号:US20180351853A1
公开(公告)日:2018-12-06
申请号:US15761632
申请日:2016-09-05
Inventor: Takeru USUI , Kunihiko SAKAIBARA
IPC: H04L12/707 , H04W76/15 , H04L29/06 , H04L12/801
Abstract: In order to ensure security even when packet communication is performed using a plurality of communication paths of a public network, the communication system (1) has a configuration wherein: the transmitter (2) includes a first storage unit (11) that stores a first communication pattern, first and second communication units (12, 13) that perform packet communication with a receiver (3), and a first processor (16) that controls communication units (12, 13); and the receiver (3) includes a second storage unit (21) that stores a second communication pattern, third and fourth communication units (22, 23) that perform the packet communication with the transmitter (2), and a second processor (26) that controls communication units (22, 23), whereby processor (16) transmits packets from communication units as selected in accordance with the first communication pattern and inserts dummy packets into at least one of the groups of packets to be transmitted, and the second processor (26) restores original data from valid packets, that is, the remaining packets after the dummy packets are removed from the received packets in accordance with the second communication pattern.
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