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公开(公告)号：US20210325543A1
公开(公告)日：2021-10-21
申请号：US17252045
申请日：2019-06-13
Applicant: Panasonic Intellectual Property Management Co., Ltd. , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Yasuhisa YAMAZAKI , Suguru OGUCHI , Yoshihiro IRIYAMA , Mamoru KANAYAMA
Abstract: A positioning terminal is provided and identifies, as appropriate, a satellite to be excluded, thereby improving positioning accuracy. A processor acquires a signal-to-noise ratio (SNR) and an angle of elevation for each satellite. The processor next identifies a satellite for which the SNR is less than a shielding SNR mask as a multipath satellite and selects the satellite to be excluded. The processor next generates positioning terminal positioning data using a positioning signal from satellites other than the satellite to be excluded. The processor next uses reference station positioning data and positioning terminal positioning data of the selected satellite to execute an RTK calculation.
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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：US20200003905A1
公开(公告)日：2020-01-02
申请号：US16481675
申请日：2017-11-07
Inventor： Yasuhisa YAMAZAKI
Abstract: According to the present application, when an inter frequency bias (IFB) calibration value, which corresponds to a machine type ID of a reference station, is not stored in a storage, a processor executes a Real Time Kinematic (RTK) calculation by using reference station-positioning data and positioning terminal-positioning data, calculates a positioning solution, and causes the storage to store the reference station-positioning data and the positioning terminal-positioning data. The processor executes, after completing a positioning processing, an estimation processing of the IFB calibration value by using the reference station-positioning data and the positioning terminal-positioning data which are stored in the storage.
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公开(公告)号：US20240125945A1
公开(公告)日：2024-04-18
申请号：US18277450
申请日：2022-01-25
Inventor： Yasuhisa YAMAZAKI , Naoto HORIIKE
Abstract: A positioning terminal includes: a reception unit which receives a first signal from a satellite and a second signal from a signal generator installed in a structure; and a control unit which, on the basis of a comparison result between a distance between a first positioning result acquired from the first signal and a second positioning result acquired from the second signal and the positioning accuracy of the second positioning result, outputs either the first positioning result or the second positioning result.
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公开(公告)号：US20180203129A1
公开(公告)日：2018-07-19
申请号：US15525160
申请日：2016-02-26
Inventor： Yasuhisa YAMAZAKI
CPC classification number: G01S19/41 , G01S19/07 , G01S19/51 , H04B7/18554
Abstract: The present disclosure can perform positioning of a terminal even though a communication bandwidth capable of being used by a reference station is narrow. In a positioning method, a positioning system, a correction information generation method, and a correction information generation apparatus of the present disclosure, coordinates of a terminal are positioned by using the reference station, a plurality of relay stations communicating with the reference station, and the terminal communicating with the relay station. In the positioning method, the positioning system, the correction information generation method, and the correction information generation apparatus of the present disclosure, information for specifying the relay station communicating with the terminal is acquired, and the correction information is generated based on the positioning signal from a satellite which is received by the reference station based on the coordinates of the relay station communicating with the terminal. In the positioning method and the positioning system of the present disclosure, the reference station transmits the correction information to the terminal via the relay station.
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Patent Agency Ranking
公开(公告)号：US20180052238A1
公开(公告)日：2018-02-22
申请号：US15524850
申请日：2016-05-10
Inventor： Yasuhisa YAMAZAKI
Abstract: In a positioning method and a terminal according to the present disclosure, a processor positions a location of the terminal through interferometric positioning using a plurality of positioning signals received from a plurality of satellites. The processor calculates an integer bias for the plurality of positioning signals, selects a group of location candidates based on a float solution acquired through the calculation of the integer bias, and notifies that the terminal is located at a predetermined point on a map under a condition in which the group of location candidates is included in a line-shaped area.
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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：US20200081135A1
公开(公告)日：2020-03-12
申请号：US16616137
申请日：2018-04-27
Inventor： Yasuhisa YAMAZAKI
Abstract: In a case where a first RTK positioning solution is a fixed solution and a second RTK positioning solution is a float solution, a processor estimates a position of a second receiver based on the first RTK positioning solution, inter-antenna distance, and antenna azimuth angle to set an area within a circle with radius centered on the estimated position as a search range. Next, the processor calculates an integer ambiguity within the search range obtained in the RTK calculation as a second RTK positioning solution. Then, the processor outputs the first RTK positioning solution and the second RTK positioning solution as positioning solutions (current coordinates of a moving object).
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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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