Near-field communication (NFC) system and method for private near-field communication
US10037522B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2012 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Nov 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of a near-field communication (NFC) system and method for private near-field communication are generally described herein. In some embodiments, a resonance-coupled channel is masked with a random channel-masking signal. The channel-masking signal may be scaled based on near-field channel conditions. Signals received through the channel may be unmasked with the scaled channel-masking signal to determine data that may have been conveyed by an NFC transmitting device by affecting the impedance of the resonance-coupled channel. In some embodiments, a reference signal may be scrambled with a mask to generate the channel-masking signal. The mask may include at least one of a random symbol mask, an amplitude mask and a phase mask. For additional privacy, the mask may include a random symbol mask and at least one of an amplitude mask and a phase mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.