专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08489020B2 NFC communicators implementing coil voltage reduction circuitry 有权
标题翻译：实现线圈降压电路的NFC通信器
公开(公告)号：US08489020B2
公开(公告)日：2013-07-16
申请号：US12532737
申请日：2008-03-20
申请人： Joakim Bangs , Robin Wilson , Franz Fuchs
发明人： Joakim Bangs , Robin Wilson , Franz Fuchs
IPC分类号： H04B5/00 , H01Q21/00
CPC分类号： H04B5/0012 , G06K7/10237 , H04B5/0081
摘要： An NFC communicator has an antenna circuit to enable inductive coupling, via an RF H field, of the NFC communicator and another near field RF communicator in near field range. The antenna circuit has an antenna element coupled in parallel with a first capacitor to form a parallel LC circuit. The antenna element has an antenna coil in series with a second capacitor to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field. Alternatively or additionally, receive circuitry of the NFC communicator may be coupled to only a proportion of the antenna coil to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field.
摘要翻译： NFC通信器具有天线电路，用于经由NFC通信器的RF H场和近场范围内的另一近场RF通信器进行电感耦合。天线电路具有与第一电容器并联耦合以形成并联LC电路的天线元件。天线元件具有与第二电容器串联的天线线圈，以减少NFC通信器的电路受到接收的RF H场的影响。或者或另外，NFC通信器的接收电路可以仅耦合到天线线圈的一部分，以降低NFC通信器的电路受到接收的RF H场的影响。

2. 发明授权

US08422946B2 Near field RF communicators 有权
标题翻译：实现用于解调的开关电路状态的近场通信器
公开(公告)号：US08422946B2
公开(公告)日：2013-04-16
申请号：US12670320
申请日：2008-07-23
申请人： Joakim Bangs , Paul Butler
发明人： Joakim Bangs , Paul Butler
IPC分类号： H04B5/00 , H04L27/00
CPC分类号： H04W4/008 , H04B5/00 , H04B5/0031 , H04B5/0081 , H04W4/80
摘要： A near field RF communicator has an inductive coupler (102) to couple inductively to an H field of an RF signal from another near field RF communicator in near field range to provide a received signal, a demodulator (300) coupled to extract any modulation from a source signal representing a received RF signal to provide an extracted modulation signal; and a controller (107) coupled to receive an extracted modulation signal from the demodulator. The demodulator (300) has a sampler (400) to sample the source signal in sampling periods and to compare signal samples with at least one of other signal samples and a clock or reference signal to remove or reject the carrier of the received RF signal and to extract the modulation.
摘要翻译：近场RF通信器具有电感耦合器（102），以在近场范围内从另一近场RF通信器的感应耦合到RF信号的H场，以提供接收信号;解调器（300），其耦合以从源信号，表示接收到的RF信号以提供提取的调制信号; 以及耦合以从解调器接收提取的调制信号的控制器（107）。解调器（300）具有采样器（400），以采样周期对源信号进行采样，并将信号样本与其它信号样本和时钟或参考信号中的至少一个进行比较以去除或拒绝接收到的RF信号的载波，提取调制。

3. 发明申请

US20100068999A1 NEAR FIELD RF COMMUNICATORS AND NEAR FIELD RF COMMUNICATIONS-ENABLED DEVICES 有权
标题翻译：近场RF通信器和近场RF通信启动设备
公开(公告)号：US20100068999A1
公开(公告)日：2010-03-18
申请号：US12516233
申请日：2007-11-27
申请人： Joakim Bangs , David Miles
发明人： Joakim Bangs , David Miles
IPC分类号： H04B5/00
CPC分类号： H04B5/02 , G06K7/0008 , G06K7/10237 , H04B5/0062 , H04B5/0081
摘要： A near field RF communicator has an antenna circuit (120) to receive a modulated radio frequency signal by inductive coupling and demodulation circuitry (130 or 131) to extract the modulation from a received modulated radio frequency signal inductively coupled to the antenna circuit. The demodulation circuitry has a virtual earth input comprising a current mirror. The demodulation circuitry may be formed by an amplifier (115 or 116) and a demodulator (114) coupled to an output of the amplifier. The amplifier may be a single input amplifier (116) coupled to an output of the antenna circuit or may be a differential amplifier (115) having first and second inputs to receive the modulated radio frequency signal from first and second outputs of the antenna circuit, with each amplifier input providing a virtual earth input.
摘要翻译：近场RF通信器具有天线电路（120），用于通过电感耦合和解调电路（130或131）接收调制的射频信号，以从接收到的调制射频信号中提取电感耦合到天线电路的调制。解调电路具有包括电流镜的虚拟接地输入。解调电路可以由耦合到放大器的输出的放大器（115或116）和解调器（114）形成。放大器可以是耦合到天线电路的输出的单个输入放大器（116），或者可以是具有第一和第二输入的差分放大器（115），以从天线电路的第一和第二输出接收经调制的射频信号，每个放大器输入提供虚拟接地输入。

4. 发明申请

US20100112941A1 NFC COMMUNICATORS 有权
标题翻译： NFC通信
公开(公告)号：US20100112941A1
公开(公告)日：2010-05-06
申请号：US12532737
申请日：2008-03-20
申请人： Joakim Bangs , Robin Wilson , Franz Fuchs
发明人： Joakim Bangs , Robin Wilson , Franz Fuchs
IPC分类号： H04B5/00
CPC分类号： H04B5/0012 , G06K7/10237 , H04B5/0081
摘要： An NFC communicator has an antenna circuit to enable inductive coupling, via an RF H field, of the NFC communicator and another near field RF communicator in near field range. The antenna circuit has an antenna element coupled in parallel with a first capacitor to form a parallel LC circuit. The antenna element has an antenna coil in series with a second capacitor to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field. Alternatively or additionally, receive circuitry of the NFC communicator may be coupled to only a proportion of the antenna coil to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field.
摘要翻译： NFC通信器具有天线电路，用于经由NFC通信器的RF H场和近场范围内的另一近场RF通信器进行电感耦合。天线电路具有与第一电容器并联耦合以形成并联LC电路的天线元件。天线元件具有与第二电容器串联的天线线圈，以减少NFC通信器的电路受到接收的RF H场的影响。或者或另外，NFC通信器的接收电路可以仅耦合到天线线圈的一部分，以降低NFC通信器的电路受到接收的RF H场的影响。

5. 发明授权

US08565675B2 Near field RF communicators and near field RF communications-enabled devices 有权
标题翻译：近场RF通信器和近场RF通信功能的设备
公开(公告)号：US08565675B2
公开(公告)日：2013-10-22
申请号：US12516233
申请日：2007-11-27
申请人： Joakim Bangs , David Miles
发明人： Joakim Bangs , David Miles
IPC分类号： H04B5/00
CPC分类号： H04B5/02 , G06K7/0008 , G06K7/10237 , H04B5/0062 , H04B5/0081
摘要： A near field RF communicator has an antenna circuit (120) to receive a modulated radio frequency signal by inductive coupling and demodulation circuitry (130 or 131) to extract the modulation from a received modulated radio frequency signal inductively coupled to the antenna circuit. The demodulation circuitry has a virtual earth input comprising a current mirror. The demodulation circuitry may be formed by an amplifier (115 or 116) and a demodulator (114) coupled to an output of the amplifier. The amplifier may be a single input amplifier (116) coupled to an output of the antenna circuit or may be a differential amplifier (115) having first and second inputs to receive the modulated radio frequency signal from first and second outputs of the antenna circuit, with each amplifier input providing a virtual earth input.
摘要翻译：近场RF通信器具有天线电路（120），用于通过电感耦合和解调电路（130或131）接收调制的射频信号，以从接收到的调制射频信号中提取电感耦合到天线电路的调制。解调电路具有包括电流镜的虚拟接地输入。解调电路可以由耦合到放大器的输出的放大器（115或116）和解调器（114）形成。放大器可以是耦合到天线电路的输出的单个输入放大器（116），或者可以是具有第一和第二输入的差分放大器（115），以从天线电路的第一和第二输出接收经调制的射频信号，每个放大器输入提供虚拟接地输入。

6. 发明申请

US20120028574A1 NEAR FIELD RF COMMUNICATORS 有权
标题翻译：近场RF通讯器
公开(公告)号：US20120028574A1
公开(公告)日：2012-02-02
申请号：US12670320
申请日：2008-07-23
申请人： Joakim Bangs , Paul Butler
发明人： Joakim Bangs , Paul Butler
IPC分类号： H04B5/00
CPC分类号： H04W4/008 , H04B5/00 , H04B5/0031 , H04B5/0081 , H04W4/80
摘要： A near field RF communicator has an inductive coupler (102) to couple inductively to an H field of an RF signal from another near field RF communicator in near field range to provide a received signal, a demodulator (300) coupled to extract any modulation from a source signal representing a received RF signal to provide an extracted modulation signal; and a controller (107) coupled to receive an extracted modulation signal from the demodulator. The demodulator (300) has a sampler (400) to sample the source signal in sampling periods and to compare signal samples with at least one of other signal samples and a clock or reference signal to remove or reject the carrier of the received RF signal and to extract the modulation.
摘要翻译：近场RF通信器具有电感耦合器（102），以在近场范围内从另一近场RF通信器的感应耦合到RF信号的H场，以提供接收信号;解调器（300），其耦合以从源信号，表示接收到的RF信号以提供提取的调制信号; 以及耦合以从解调器接收提取的调制信号的控制器（107）。解调器（300）具有采样器（400），以采样周期对源信号进行采样，并将信号样本与其它信号样本和时钟或参考信号中的至少一个进行比较以去除或拒绝接收到的RF信号的载波，提取调制。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式