| 摘要 |
A detection and near-field communication device for detecting the approach of a portable device integrating a near-field communication antenna for communicating with the portable device, includes:
a printed circuit including: an upper face oriented toward the portable device and a lower face, a microcontroller, a near-field reader, a detection module, a near-field communication antenna, situated on a face of the printed circuit having a first surface and being linked to the near-field reader;a plurality of resonators made of copper wire windings, printed on a face of the printed circuit, covering a surface substantially identical to the first surface;the resonators including frequency adjustment elements so as to resonate at the near-field communication frequency; andthe resonators generating a voltage variation across their terminals and being connected to the detection module to detect the approach of the portable device. |
| 主权项 |
1. A detection and near-field communication device (D) for detecting the approach of a portable device integrating a near-field communication antenna for communicating with said portable device, the detection and near-field communication device (D) comprising:
a printed circuit (70), comprising:
an upper face (FS), oriented toward the portable device and a lower face (FI) oriented on the opposite side from the upper face (FS),a microcontroller (30),a near-field reader (60), anda detection module (50),a near-field communication antenna (20), situated on a face (FS) of the printed circuit (70) having a surface (S) and a center (0), and being linked to the near-field reader (60),said detection and near-field communication device (D) being characterized in that it furthermore comprises:
a plurality of resonators (40a, 40b, 40c, 40d) made of copper wire windings, printed on a face (FI) of the printed circuit, covering a surface (S1) substantially identical to the surface (S) of the communication antenna (20), said resonators (40a, 40b, 40c, 40d) comprising frequency adjustment means so as to resonate at the near-field communication frequency, and said resonators (40a, 40b, 40b, 40c) generating a voltage variation across their terminals (ΔVa, ΔVb, ΔVc, ΔVd) and being connected to the detection module (50) to detect the approach of the portable device. |
