公开(公告)号：US12131215B2

公开(公告)日：2024-10-29

申请号：US17312729

申请日：2019-11-14

申请人： MHM Microtechnique Sàrl

发明人： Ivan Olchevski ,  Stefan Meyer ,  Matthieu Boubat ,  Jean-Paul Sandoz

IPC分类号： G06K7/10 ,  G06K7/00 ,  G06K19/067

CPC分类号： G06K7/10356 ,  G06K7/0008 ,  G06K7/10019 ,  G06K19/0675

摘要： An RFID tag (1) is configured to transmit a predetermined code (3K) as a RF backscattered radiation (2) in response to an impinging RF signal (41). The RFID tag (1) is configured to react to an impinging signal at a predetermined reference frequency (23) with a reference backscattered signal (2R). The RFID tag (1) is also configured and to react to an impinging signal (41) at any of a group of transmission frequencies (21, 22) with coding backscattered signals (2F-G) whose amplitudes (20A, 20B) relative to the amplitude (20R) of the reference backscattered signal define the code (3K). An RFID reader (4), a kit (5) and a method for transmitting a message from a device (1) to a reader (4) as a RF backscattered radiation (2) in response to an impinging RF signal (41).