公开(公告)号：US09992660B1

公开(公告)日：2018-06-05

申请号：US15698460

申请日：2017-09-07

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H04W4/80 ,  G06K19/07 ,  H04W4/00 ,  H04B5/00 ,  H04B7/08

CPC分类号： H04W4/80 ,  G06K7/0008 ,  G06K19/0709 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0062 ,  H04B5/0081 ,  H04B7/0814

摘要： A radio-frequency identification (RFID) transponder device is disclosed. The RFID transponder device includes an antenna component for inductive communication with at least one basestation transceiver device and an interface component coupled to the antenna component. The interface component includes a demodulation component arranged to perform demodulation of a signal at the antenna component for basestation-to-transponder communication and a modulation component arranged to perform modulation of the signal at the antenna component for transponder-to-basestation communication. The interface component is arranged to operate in at least a charge and talk mode of operation, and during the charge and talk mode of operation the modulation component is arranged to perform binary phase-shift keying, BPSK, modulation of the signal at the antenna component for the transponder-to-basestation communication. A RFID basestation transceiver device is also disclosed.

公开(公告)号：US20170158165A1

公开(公告)日：2017-06-08

申请号：US14958515

申请日：2015-12-03

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： B60R25/021

CPC分类号： B60R25/02105 ,  B60R25/04

摘要： A transponder is disclosed. The transponder includes a resonant circuit serving as an antenna, a load modulation module coupled to the resonant circuit, a current source coupled to the resonant circuit and a command interpreter configured to interpret a received initialization command. The command interpreter is configured to monitor input communication for a stop command signal and a charge & talk bit and if the charge & talk bit is not received within a predetermined time interval after receiving the stop command signal, the load modulation module is activated to provide a signal for transmission by modifying an incoming carrier wave through the load modulation module. If the charge & talk bit is received within the predetermined time after receiving the stop command signal, the current source is activated to provide a signal for transmission by generating pulses of current.

公开(公告)号：US20140167865A1

公开(公告)日：2014-06-19

申请号：US13719011

申请日：2012-12-18

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H03L5/00

CPC分类号： H03L5/00 ,  H03B1/00 ,  H03B5/10 ,  H03J1/0008 ,  H03J3/08 ,  H03J3/20 ,  H03J3/24 ,  H03J2200/28

摘要： According to an example embodiment, a device includes a resonant circuit configured and arranged to provide a peak current flow at a resonance frequency. A trimming circuit provides variable impedances to the resonant circuit and thereby changes the resonance frequency for the resonant circuit. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. A switch circuit couples and decouples the driver circuit to the resonant circuit for driving the resonant circuit with the trimming signal. An amplitude detection circuit detects amplitudes for signals generated in response to the trimming signal being connected to the resonant circuit. A processing circuit correlates detected amplitudes from the amplitude detection circuit with different impedance values of the variable trimming circuit.

摘要翻译： 根据示例性实施例，一种器件包括谐振电路，其被配置和布置成以谐振频率提供峰值电流。 修整电路为谐振电路提供可变阻抗，从而改变谐振电路的谐振频率。 驱动器电路被配置为产生以所需频率振荡的微调信号。 开关电路将驱动电路耦合到谐振电路并将其去耦，以用修整信号来驱动谐振电路。 振幅检测电路检测响应于连接到谐振电路的修整信号而产生的信号的幅度。 处理电路使来自振幅检测电路的检测振幅与可变微调电路的不同阻抗值相关。

公开(公告)号：US09928391B1

公开(公告)日：2018-03-27

申请号：US15703810

申请日：2017-09-13

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： G07C9/00 ,  G06K7/10 ,  H04B5/00

CPC分类号： G06K7/10237 ,  G07C9/00309 ,  G07C9/00714 ,  G07C2209/10 ,  H02J50/10 ,  H04B5/0012 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0062

摘要： An apparatus comprising a power providing arrangement for a field powered device having a coil antenna for receiving a wireless signal, the power providing arrangement comprising: a first capacitor configured to be coupled to the coil antenna, the first capacitor configured to store energy obtained from the wireless signal received by the coil antenna, up to a first stored energy level, and configured to provide said energy to power the field powered device; a second capacitor arranged in parallel with the first capacitor via a switch; the switch providing at least a connected state in which the first capacitor and the second capacitor are connected in parallel and configured to both store the energy obtained from the wireless signal up to a second stored energy level, greater than the first stored energy level, and configured to provide said energy to power the field powered device and a disconnected state in which the second capacitor is disconnected from the first capacitor; the switch configured to transition from the disconnected state to the connected state based on particular signalling received from a remote device.

公开(公告)号：US09306498B2

公开(公告)日：2016-04-05

申请号：US14180025

申请日：2014-02-13

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H03C3/00 ,  H03C5/00 ,  H03K17/95 ,  H03K7/02 ,  H03C1/00 ,  H04L27/00 ,  G06K19/07 ,  H04L27/04 ,  H03C1/36 ,  H03C3/24 ,  H04L27/20

CPC分类号： H03C5/00 ,  G06K19/0723 ,  H03C1/00 ,  H03C1/36 ,  H03C3/00 ,  H03C3/245 ,  H03C2200/0079 ,  H03K7/02 ,  H03K17/95 ,  H03K17/9547 ,  H04L27/00 ,  H04L27/04 ,  H04L27/2032

摘要： A circuit for generating a modulated signal is disclosed. The circuit includes a constant current source. The circuit further includes a first switch that is coupled to the constant current source. The circuit also includes a second switch that is coupled to the first switch and a ground. The first switch and the second switch are coupled to a third switch. The third switch is coupled to a first integrated circuit pad. The first integrated circuit pad is defined to be used for coupling the third switch to a resonance circuit.

摘要翻译： 公开了一种用于产生调制信号的电路。 电路包括恒流源。 电路还包括耦合到恒流源的第一开关。 电路还包括耦合到第一开关和地的第二开关。 第一开关和第二开关耦合到第三开关。 第三开关耦合到第一集成电路板。 第一集成电路焊盘被定义为用于将第三开关耦合到谐振电路。

公开(公告)号：US20150031311A1

公开(公告)日：2015-01-29

申请号：US14320960

申请日：2014-07-01

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H04B1/00

CPC分类号： H04B1/0064 ,  G06K19/0726 ,  H04B5/0068 ,  H04B5/0081

摘要： A transponder is disclosed comprising a multichannel front-end circuit; each channel of the multichannel front-end circuit a resonant circuit associated with a respective antenna and producing, in use, an input voltage; a conditioning circuit configured to provide a conditioned input voltage from the input voltage, and a comparator configured to compare the conditioned input voltage with a reference voltage; wherein the front-end circuit further comprises: a variable load connectable across each of the resonant circuits, and a controller configured to, in use, vary the variable load and detect an output from each of the comparators.A method of operating such a transponder to determine a most strongly coupled channel, or more strongly coupled channels, is also disclosed.

摘要翻译： 公开了一种应答器，包括多通道前端电路; 多通道前端电路的每个通道是与相应天线相关联的谐振电路，并且在使用中产生输入电压; 调节电路，被配置为从所述输入电压提供经调节的输入电压;以及比较器，被配置为将调节的输入电压与参考电压进行比较; 其中所述前端电路还包括：可连接到每个所述谐振电路的可变负载，以及被配置为在使用中改变所述可变负载并检测每个所述比较器的输出的控制器。 还公开了一种操作这种应答器以确定最强耦合信道或更强耦合信道的方法。

公开(公告)号：US09543989B2

公开(公告)日：2017-01-10

申请号：US14320960

申请日：2014-07-01

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H04B1/00 ,  H04B5/00 ,  G06K19/07

CPC分类号： H04B1/0064 ,  G06K19/0726 ,  H04B5/0068 ,  H04B5/0081

摘要： A transponder is disclosed comprising a multichannel front-end circuit; each channel of the multichannel front-end circuit a resonant circuit associated with a respective antenna and producing, in use, an input voltage; a conditioning circuit configured to provide a conditioned input voltage from the input voltage, and a comparator configured to compare the conditioned input voltage with a reference voltage; wherein the front-end circuit further comprises: a variable load connectable across each of the resonant circuits, and a controller configured to, in use, vary the variable load and detect an output from each of the comparators.A method of operating such a transponder to determine a most strongly coupled channel, or more strongly coupled channels, is also disclosed.

摘要翻译： 还公开了一种操作这种应答器以确定最强耦合信道或更强耦合信道的方法。

公开(公告)号：US20140051364A1

公开(公告)日：2014-02-20

申请号：US13922067

申请日：2013-06-19

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： B60R25/20 ,  H04B1/38

CPC分类号： B60R25/20 ,  H04B1/3822 ,  H04W52/0229 ,  Y02D70/00

摘要： In accordance with various example embodiments, a vehicle base station wirelessly communicates data with a remote transceiver circuit. The remote transceiver circuit intermittently transitions a data-receiving circuit of the remote transceiver circuit between on and off states. The vehicle base station intermittently polls the remote transceiver circuit with a series of data packets, at least one of which the data-receiving circuit of the remote transceiver circuit will receive while in the on state. The remote transceiver circuit, upon receiving the data packet, will reset a state counter to enable the remote transceiver circuit to receive a wake-up data packet while operating in the on state; in response, transmitting response data to the vehicle base station. The data communication is carried out to facilitate authentication of the remote transceiver. Exemplary embodiments include a system for passive keyless go and passive keyless entry in a vehicle.

摘要翻译： 根据各种示例实施例，车辆基站与远程收发器电路无线地传送数据。 远程收发器电路间断地转换远程收发器电路的数据接收电路的导通和截止状态。 车辆基站利用一系列数据分组间歇地轮询远程收发机电路，其中远程收发机电路的数据接收电路中的至少一个将处于接通状态。 遥控收发电路在接收到数据包后，将复位状态计数器，使得遥控收发电路能够在接通状态下工作时接收唤醒数据包; 作为响应，将响应数据发送到车辆基站。 执行数据通信以便于远程收发器的认证。 示例性实施例包括在车辆中无源无钥匙进入和无源无钥匙进入的系统。

公开(公告)号：US20180146324A1

公开(公告)日：2018-05-24

申请号：US15698460

申请日：2017-09-07

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： H04W4/00 ,  H04B5/00 ,  H04B7/08 ,  G06K19/07

CPC分类号： H04W4/80 ,  G06K7/0008 ,  G06K19/0709 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0062 ,  H04B5/0081 ,  H04B7/0814

摘要： A radio-frequency identification (RFID) transponder device is disclosed. The RFID transponder device includes an antenna component for inductive communication with at least one basestation transceiver device and an interface component coupled to the antenna component. The interface component includes a demodulation component arranged to perform demodulation of a signal at the antenna component for basestation-to-transponder communication and a modulation component arranged to perform modulation of the signal at the antenna component for transponder-to-basestation communication. The interface component is arranged to operate in at least a charge and talk mode of operation, and during the charge and talk mode of operation the modulation component is arranged to perform binary phase-shift keying, BPSK, modulation of the signal at the antenna component for the transponder-to-basestation communication. A RFID basestation transceiver device is also disclosed.

公开(公告)号：US09919677B2

公开(公告)日：2018-03-20

申请号：US14958515

申请日：2015-12-03

申请人： NXP B.V.

发明人： Sven Simons

IPC分类号： B60R25/021

CPC分类号： B60R25/02105 ,  B60R25/04

摘要： A transponder is disclosed. The transponder includes a resonant circuit serving as an antenna, a load modulation module coupled to the resonant circuit, a current source coupled to the resonant circuit and a command interpreter configured to interpret a received initialization command. The command interpreter is configured to monitor input communication for a stop command signal and a charge & talk bit and if the charge & talk bit is not received within a predetermined time interval after receiving the stop command signal, the load modulation module is activated to provide a signal for transmission by modifying an incoming carrier wave through the load modulation module. If the charge & talk bit is received within the predetermined time after receiving the stop command signal, the current source is activated to provide a signal for transmission by generating pulses of current.