Antenna sharing in mobile devices for backscatter radio
US9312950B1 · kind B1 · utility
22Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Sep 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10326
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for wirelessly communicating data that receives electromagnetic (“EM”) radiation incident upon an antenna of a mobile device from a base station is described. The antenna is an element of the mobile device that serves an additional purpose than just as a reflective antenna for backscatter communications. A radar cross-section of the antenna is modulated between two or more states using a backscatter tag coupled to the antenna. Data is encoded onto a backscatter channel of the EM radiation via the modulating. The data is transmitted to the base station over the backscatter channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.