Method for performing distance measurement and authentication concurrently and electronic device thereof
US11573313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Jan 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A first electronic device, second electronic device, and a method are disclosed herein. The first electronic device includes communication circuitry and a processor that implements the method, including transmitting, using the communication circuit, a distance measurement signal including the first secure preamble to the second electronic device, receiving a response signal through the communication circuit including a second secure preamble generated by the second electronic device from the external electronic device, authenticating the response signal based on the second secure preamble, and based on successful authentication, determining a distance to the second electronic device based on a transmission time of the distance measurement signal and a reception time of the response signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.