Systems, methods and apparatuses for ensuring proximity of WiFi communication devices
US10085136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2016 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Oct 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The systems, methods and apparatuses described herein provide an apparatus configured for ensuring proximity of a communication partner. In one aspect, the apparatus may comprise a communication port and a processor. The processor may be configured to send a request to and receive a response from the communication partner via the communication port using modulated signals, measure a time period between sending and receiving using timings of modulated signals' symbols, and receive a secondary value from the communication partner. The secondary value may be verified to include at least a portion of the request and a portion of the response, and may have been sent with authenticating data to authenticate it. The time period may be compared with a predefined threshold calculated based on a predefined maximum allowed distance to the communication partner. In another aspect, an apparatus may be configured to ensure its proximity to a communication partner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.