Strong authentication token with acoustic data input over multiple carrier frequencies
US9184915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3234
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Strong authentication tokens for generating dynamic security values having an acoustical input interface for acoustically receiving input data are disclosed. The tokens may also include an optical interface for receiving input data and may have a selection mechanism to select either the acoustical or the optical input interface to receive data. A communication interface may be provided to communicate with a removable security device such as a smart card and the token may be adapted to generate dynamic security values in cooperation with the removable security device. The acoustic signal received by the token may comprise a plurality of modulated carrier frequencies whereby each carrier frequency has been modulated with a data signal representing the full input data such that the input data are redundantly emitted over more than one modulated carrier frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.