Methods and apparatus for preserving privacy in an RFID system
US8350673B2 · kind B2 · utility
20Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A card comprises an antenna configured to generate and receive radio frequency signals, a chip coupled with the antenna, the chip configured to store sensitive information and communicate the information to an authorized reader via the antenna, and a switching mechanism configured to tune and detune the antenna relative to the chip to enable and disable respectively, the chips ability to communicate the sensitive information via the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.