公开(公告)号：US20250096847A1

公开(公告)日：2025-03-20

申请号：US18882469

申请日：2024-09-11

Applicant: STMicroelectronics International N.V.

Inventor： Florent BARTHELEMY ,  Marc HOUDEBINE ,  Laurent Jean GARCIA

IPC: H04B5/48 ,  H03L7/08 ,  H04B5/77

Abstract: A device of contactless communication by active load modulation includes a clock signal extraction circuit configured to receive as an input a reception signal and to output a clock signal having a first value when the reception signal is greater than a threshold of the clock signal extraction circuit and having a second value when the reception signal is smaller than the threshold. The device includes a circuit for modifying the value of the threshold, configured to decrease the value of the threshold when the value of the clock signal is equal to the first value, or to increase the value of the threshold when the value of the clock signal is equal to the second value.