System and method for wireless communications
US8149093B2 · kind B2 · utility
2Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Dec 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/84
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of detecting position of a moving RFID tag relative to an antenna, includes continually receiving a signal from the RFID tag at the antenna. The phase of the received signal over a time period is detected and, based on a maximum detected phase, the position of the RFID tag relative to the antenna is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.