METHOD AND TRANSMITTER CIRCUIT FOR COMMUNICATION USING ACTIVE LOAD MODULATION IN RADIO FREQUENCY IDENTIFICATION SYSTEMS
    1.
    发明申请
    METHOD AND TRANSMITTER CIRCUIT FOR COMMUNICATION USING ACTIVE LOAD MODULATION IN RADIO FREQUENCY IDENTIFICATION SYSTEMS 审中-公开
    在无线电频率识别系统中使用主动负载调制的通信方法和发射机电路

    公开(公告)号:WO2017050818A1

    公开(公告)日:2017-03-30

    申请号:PCT/EP2016/072410

    申请日:2016-09-21

    CPC classification number: H04B5/0062 H04B5/0031

    Abstract: Method and transmitter circuit for communication using active load modulation in Radio Frequency Identification systems In one embodiment a method for communication using active load modulation in Radio Frequency Identification, RFID, systems comprising the following steps of receiving a carrier signal (Sc) having a carrier frequency from a reader device, generating a modulated signal (Smod), transmitting a burst of a sending signal (Sout), and decaying the sending signal (Sout) at the end of the burst. Furthermore, atransmitter circuit (T) for communication using active load modulation in RFID systems comprising an equipment (E1, E2, E3) for generating a decaying sending signal (Sout) is specified.

    Abstract translation: 在射频识别系统中使用有源负载调制进行通信的方法和发射机电路在一个实施例中,一种在射频识别(RFID)系统中使用有源负载调制的通信方法,包括以下步骤:接收具有载波频率的载波信号 从读取器装置产生调制信号(Smod),发送发送信号(Sout)的脉冲串,并在脉冲串结束时衰减发送信号(Sout)。 此外,规定了用于在包括用于产生衰减发送信号(Sout)的设备(E1,E2,E3)的RFID系统中使用有源负载调制的通信的发送器电路(T)。

    NFC CONTROLLER
    4.
    发明公开
    NFC CONTROLLER 审中-公开

    公开(公告)号:EP4456439A1

    公开(公告)日:2024-10-30

    申请号:EP24170141.6

    申请日:2024-04-15

    Abstract: The present disclosure relates to an NFC controller comprising a first node (NVBAT) configured to be coupled to a battery; a second node (NVDD_TX) configured to receive a regulated voltage from an external dc/dc converter coupled to said first node ; a third node (RF01, RF02) configured to be coupled to an radiofrequency output of the NFC controller; said third node been configured to, in a first mode, be coupled either to the first or second nodes, and in a second mode, either to the first node or to first and second nodes.

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