Circuit and method for using capacitive touch to further secure information in RFID documents
US10586412B2 · kind B2 · utility
1Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Jan 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2137
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for limiting access to confidential information including storage circuitry for storing the confidential information. An access enabling circuit allows access to the storage circuitry in response to a first level of an enabling signal. A processor generates the enabling signal for a predetermined amount of time in response to sensing of a change of a predetermined value that is produced in response to an act by a person responsible for the confidentiality of the confidential information. The enabling signal assumes a second level after the predetermined amount of time to block access to the storage circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.