公开(公告)号：US20160371580A1

公开(公告)日：2016-12-22

申请号：US14903584

申请日：2014-06-12

Applicant: STMicroelectronics International N.V.

Inventor： Vinko KUNC ,  Anton STERN ,  Kosta KOVACIC ,  Albin PEVEC ,  Maksimiljan STIGLIC

IPC: G06K19/077

CPC classification number: G06K19/07773 ,  G06K19/0715 ,  G06K19/07749 ,  G06K19/0775

Abstract: An RFID transponder device has antenna terminals for coupling an antenna system to the device. A transmitter and a receiver are coupled to the antenna terminals. The device has at least one damping resistance connected to at least one of the antenna terminals. The at least one damping resistance is connected, depending on a voltage swing at the antenna terminals during a transmission burst period, either together with a serially connected switch in parallel to the antenna terminals that are coupled to the receiver, or together with a parallel connected switch between one of the antenna terminals and a terminal of the transmitter. A damping control is configured to activate the at least one damping resistance during a damping period after the transmission burst period by controlling the respective switch.

Abstract translation: RFID应答器设备具有用于将天线系统耦合到设备的天线端子。 发射器和接收器耦合到天线端子。 该装置具有连接到至少一个天线端子的至少一个阻尼电阻。 至少一个阻尼电阻根据传输脉冲串期间天线端子处的电压摆幅而连接，或者连接到与接收器耦合的天线端子并联连接的串联开关，或者与并联连接 在天线终端之一和发射机的终端之间切换。 阻尼控制被配置为通过控制相应的开关来在传输脉冲串周期之后的阻尼时段期间激活至少一个阻尼电阻。

公开(公告)号：US20190296800A1

公开(公告)日：2019-09-26

申请号：US16435815

申请日：2019-06-10

Applicant: STMicroelectronics International N.V.

Inventor： Kosta KOVACIC ,  Albin PEVEC ,  Maksimiljan STIGLIC

IPC: H04B5/00 ,  G06K19/077 ,  G06K7/00 ,  G06K19/07

Abstract: An RFID transponder includes a coding and modulation unit that generates a transmission signal by modulating an oscillator signal with an encoded bit signal. During a first and a second time segment, the encoded bit signal assumes a first and a second logic level, respectively. The transmission signal includes a first signal pulse having a first phase within the first time segment and a second signal pulse having a second phase that is shifted with respect to the first phase by a predefined phase difference within the second time segment. The transmission signal is paused for a pause period between the first and the second signal pulse. The pause period is shorter than a mean value of a period of the first time segment and a period of the second time segment.

公开(公告)号：US20240206039A1

公开(公告)日：2024-06-20

申请号：US18540286

申请日：2023-12-14

Applicant: STMicroelectronics International N.V.

Inventor： Albin PEVEC ,  Nejc SUHADOLNIK ,  Damjan BERCAN ,  Maksimiljan STIGLIC

IPC: H05B47/105 ,  G06V40/12 ,  G06V40/13 ,  H05B47/175 ,  H05B47/19

CPC classification number: H05B47/105 ,  G06V40/1312 ,  G06V40/1365 ,  H05B47/19 ,  H05B47/196

Abstract: A device is configured to operate in a first mode of operation during which the device is configured to receive a first supply voltage in a contactless manner. The device includes a light emitting element and a first circuit. The first circuit is configured to receive a second supply voltage generated from the first supply voltage. A first current is generated from the first supply voltage, independent from the second voltage, and applied to the light emitting element which is selectively turned on.

公开(公告)号：US20200186200A1

公开(公告)日：2020-06-11

申请号：US16793679

申请日：2020-02-18

Applicant: STMicroelectronics International N.V.

Inventor： Kosta KOVACIC ,  Albin PEVEC ,  Maksimiljan STIGLIC

IPC: H04B5/00 ,  G06K19/077 ,  G06K19/07 ,  G06K7/00

Abstract: An RFID transponder includes a coding and modulation unit that generates a transmission signal by modulating an oscillator signal with an encoded bit signal. During a first and a second time segment, the encoded bit signal assumes a first and a second logic level, respectively. The transmission signal includes a first signal pulse having a first phase within the first time segment and a second signal pulse having a second phase that is shifted with respect to the first phase by a predefined phase difference within the second time segment. The transmission signal is paused for a pause period between the first and the second signal pulse. The pause period is shorter than a mean value of a period of the first time segment and a period of the second time segment.