Terminal device for position measurement, computer program, and system
US10841895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2018 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/027
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To efficiently measure the positional relationship between a host terminal and a wireless tag in a terminal device. A terminal device 30: measures a first distance between a plurality of base stations 20 provided at individual reference positions and host terminal on the basis of wireless signals emitted by the base stations 20; specifies the position of the host terminal on the basis of the first distance; and specifies the position of a wireless tag 10 on the basis of information pertaining to a second distance between the wireless tag 10 and the base stations 20, said information being transmitted by base stations 20 that have received a wireless signal emitted by the wireless tag 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.