| 摘要 |
<p>A device (101) for data-reception using amplitude modulation, comprises a coil (121) having a coil terminal (123) and being adapted to receive an amplitude modulated electromagnetic wave (116), whereupon an amplitude modulated signal (Vb) is induced in the coil (121) and provided at the coil terminal (123), the amplitude modulated signal (Vb) comprising a positive voltage portion (325, 427) and a negative voltage portion (324,428); and an adjustment circuit (125, 300,400) connected via an input terminal (129, 302,403) to the coil terminal (123), wherein the adjustment circuit is adapted: to adjust the amplitude modulated signal such as to reduce the positive voltage portion (325,427) by a constant amount (”) and to provide the adjusted amplitude modulated signal (129, 323,425) at an output terminal (131,317,427) of the adjustment circuit (125, 300,400).</p> |
