Locating an object based on charging/response time
US9551780B1 · kind B1 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2016 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jan 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An approach is provided in which an RFID reader receives a response signal from an RFID tag affixed to an object. The RFID reader determines a tag charging time of the RFID tag based upon a first point in time that the RFID reader sent a request signal to the RFID tag and a second point in time that the response signal was received by the RFID reader. In turn, the RFID reader identifies a location of the object based on the tag charging time and generates a notification that includes the location of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.