公开(公告)号：EP4270804A1

公开(公告)日：2023-11-01

申请号：EP22170024.8

申请日：2022-04-26

Applicant: STMicroelectronics razvoj polprevodnikov d.o.o.

Inventor： KOROSAK., Ziga

IPC: H04B5/00

Abstract: Method for managing a signal transmission emitted by a wireless transponder (TG) to a reader (RD), said transmission using an active load modulation and being based on transmitted bursts (TXBST) separated by pause periods (PP), each transmitted burst (TXBST) including transmitted pulses (TXP), said method comprising
-performing an active damping operation (ST64) at the end of said transmitted bursts in the beginning of the pause periods, said active damping operation comprising transmitting a number of additional pulses (DPI, DP2, DP3) having a phase opposite to the phase of said transmitted pulses (TXP), and
-controlling the transmitted pulses power (PWS), the additional pulses power (Dampi), the number of additional pulses (N) based on a distance (D) between the reader and the wireless transponder and on reference values of the transmitted pulses power, the additional pulses power, and the number respectively associated with reference distances.