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公开(公告)号:US20250119705A1
公开(公告)日:2025-04-10
申请号:US18836183
申请日:2022-10-06
Inventor: Yasuhisa YAMAZAKI , Jun SHIBATA , Kazuyuki YOSHINO , Naoto HORIIKE , Yoshihito KAWAI , Yoshimasa SHIROSAKI , Atsuki TSUNOBUCHI , Noriyuki GEJOH , Hiroaki SUDO , Kazuhiro KOSAKA
Abstract: This information processing apparatus comprises: an acquisition unit that acquires the number of terminals present in a prescribed area, or the weights of moving bodies associated with the terminals present in the prescribed area; and a processing unit that determines, according to whether at least one of the number of terminals and the weights of the moving bodies exceeds a prescribed threshold, whether to generate a geofence.
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公开(公告)号:US20200292714A1
公开(公告)日:2020-09-17
申请号:US16464188
申请日:2017-09-15
Inventor: Kazuyuki YOSHINO
Abstract: A processor calibrates the velocity of a moving object by removing a velocity bias from the velocity of the moving object and calculates a DR solution based on the calibrated velocity of the moving object. In a case where a fixed solution is calculated in positioning calculation, the processor outputs the fixed solution as coordinates of the moving object, whereas in a case where a fixed solution is not calculated, the processor outputs the DR solution based on the calibrated velocity of the moving object as the coordinates of the moving object.
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公开(公告)号:US20190049594A1
公开(公告)日:2019-02-14
申请号:US16076560
申请日:2017-02-07
Inventor: Kazuyuki YOSHINO
Abstract: There is provided a coordinate output method capable of suppressing the influence of a positioning error (jump) of a float solution in a case where interferometric positioning by RTK method is applied to positioning of a moving body. Current coordinates of a moving body are estimated based on previous coordinates of the moving body and information on a speed of the moving body. In addition, interferometric wave positioning is executed based on the positioning data of a base station and the positioning data of a positioning station to calculate the current coordinates of the moving body as either a fix solution or a float solution. In a case where the fix solution may not be calculated after the fix solution is calculated for a predetermined time or more, the coordinates of the moving body estimated from the information on a speed are output.
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公开(公告)号:US20250078639A1
公开(公告)日:2025-03-06
申请号:US18727385
申请日:2022-10-06
Inventor: Yasuhisa YAMAZAKI , Jun SHIBATA , Kazuyuki YOSHINO , Naoto HORIIKE , Yoshihito KAWAI , Yoshimasa SHIROSAKI , Atsuki TSUNOBUCHI , Noriyuki GEJOH , Hiroaki SUDO , Kazuhiro KOSAKA
Abstract: Provided is an information processing device comprising: a processing unit that dynamically sets an area in a portion of the surroundings of a first terminal including the position of the first terminal on the basis of a state of a moving body mounting the first terminal and the position of the first terminal and determines entry of a second terminal into or approach of the second terminal to the area; and a communication unit that transmits, to the second terminal, a signal for causing the second terminal to issue an alarm in response to the entry or the approach.
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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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