Apparatus and method for preventing wireless interrogation of portable consumer devices
US7522905B2 · kind B2 · utility
90Cited by
13References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Aug 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07309
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is provided to prevent contactless portable electronic consumer devices such as an RF identification device (RFID), tokens, mini-cards, key fobs, cellular phones, smart card, etc. from being wirelessly interrogated. In one embodiment, a decoy circuit capable of detecting wireless interrogation signals transmitted to a contactless portable consumer device is used to prevent one or more interrogation devices from interrogating an authentic circuit in the contactless portable consumer device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.