Transmitter and method for substantially reducing dead zones in an inductive contactless mobile payment system
US9864985B2 · kind B2 · utility
0Cited by
4References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jun 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transmitter to generate a signal to be read by a reader is described. The transmitter includes a driver circuit; and at least two inductors connected to the driver circuit. The driver circuit controls the current flow through the inductor and the current flow results in a signal such that the signal strength is above the detection limit of the reader for each of the inductors which may have at least one null region. Additionally, the inductors are positioned such that the null regions of the inductors do not overlap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.