公开(公告)号：US08994507B2

公开(公告)日：2015-03-31

申请号：US14072726

申请日：2013-11-05

Applicant: NXP B.V.

Inventor： Klemens Breitfuss ,  Peter Thueringer

IPC: G08C17/00 ,  G06K7/10 ,  G06K7/00

CPC classification number: G06K7/10029 ,  G06K7/0008 ,  G06K7/10059

Abstract: Data carriers for inventorying by means of a communication station, whereby the communication station and each data carrier are brought into communicative connection, and each data carrier brought into communicative connection with the communication station is configured to generate a response signal that renders possible an inventorying of the data carrier and is capable of delivering a generated response signal with the use of a transmission start moment that can be selected from a plurality of transmission start moments, each data carrier tests whether another data carrier is already giving its response signal. Each data carrier is configured to discontinue the generation or delivery of its response signal if another data carrier is already providing its response signal.

Abstract translation: 用于通过通信站进行库存的数据载体，由此使通信站和每个数据载体进行通信连接，并且与通信站进行通信连接的每个数据载体被配置为产生响应信号，其使得可能的库存 数据载体并且能够通过使用可以从多个传输开始时刻中选择的传输开始时刻来传递所生成的响应信号，每个数据载体测试另一个数据载体是否已经提供其响应信号。 如果另一数据载体已经提供其响应信号，则每个数据载体被配置为中止其响应信号的产生或传递。

公开(公告)号：US09513609B2

公开(公告)日：2016-12-06

申请号：US13757028

申请日：2013-02-01

Applicant: NXP B.V.

Inventor： Peter Thueringer ,  Klemens Breitfuss

IPC: H04Q5/22 ,  G05B13/02 ,  G06K7/10 ,  G06K19/077 ,  H04B5/00

CPC classification number: G05B13/02 ,  G06K7/10009 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0062 ,  H04B5/0081

Abstract: A method of wireless communication, with a circuit that includes a radio frequency identification (RFID) reader, can be carried out using a circuit that is configured and arranged to communicate with RFID cards that use load modulation of an RF carrier provided by the RFID reader. A presence of the radio frequency (RF) carrier is detected on an antenna. A local clock signal is generated. A difference between the local clock signal and the RF carrier is detected. In response to the detected difference, the frequency of the local clock signal is modified to reduce the detected difference. Load modulation of the RF carrier is mimicked by modulating the local clock signal to encode data; and driving the antenna with the modulated local clock signal.

Abstract translation: 使用包括射频识别（RFID）读取器的电路的无线通信的方法可以使用被配置和布置成与使用由RFID读取器提供的RF载体的负载调制的RFID卡进行通信的电路来执行 。 在天线上检测到射频（RF）载波的存在。 产生本地时钟信号。 检测本地时钟信号与RF载波之间的差异。 响应于检测到的差异，本地时钟信号的频率被修改以减小检测到的差异。 通过调制本地时钟信号来对数据进行编码来模拟RF载波的负载调制; 并用调制好的本地时钟信号驱动天线。

公开(公告)号：US20150180551A1

公开(公告)日：2015-06-25

申请号：US14642661

申请日：2015-03-09

Applicant: NXP B.V.

Inventor： Klemens Breitfuss

IPC: H04B5/00 ,  H04W4/00

CPC classification number: H04B5/0031 ,  G06K7/0008 ,  G06K19/0707 ,  G06K19/0712 ,  G06K19/0723 ,  H04W4/80

Abstract: A communication partner appliance is implemented within a near field communication system. The communication partner appliance includes a receiver, a detector, and a processor. The receiver receives a NFC command signal from another communication partner appliance. The detector detects whether a carrier signal from the other communication partner appliance is present at the receiver at a time other than during a transmission of the NFC command signal from the other communication partner appliance to the receiver. The processor controls a power supply element based on a determination by the detector whether the carrier signal from the other communication partner appliance is present at the receiver. The power supply element is configured to establish a connection to either a first power supply or a second power supply. The first power supply is dependent on the carrier signal, and the second power supply is independent of the carrier signal.

Abstract translation: 通信伙伴设备在近场通信系统中实现。 通信伙伴设备包括接收器，检测器和处理器。 接收器从另一通信伙伴设备接收NFC命令信号。 检测器检测在来自另一个通信伙伴设备的NFC命令信号的传输期间，来自另一个通信伙伴设备的载波信号是否存在于接收器处。 处理器基于检测器的确定来控制电源元件，来自另一通信伙伴设备的载波信号是否存在于接收机。 电源元件被配置为建立到第一电源或第二电源的连接。 第一电源取决于载波信号，第二电源与载波信号无关。

公开(公告)号：US20140218176A1

公开(公告)日：2014-08-07

申请号：US13757028

申请日：2013-02-01

Applicant: NXP B.V.

Inventor： Peter Thueringer ,  Klemens Breitfuss

IPC: G05B13/02

CPC classification number: G05B13/02 ,  G06K7/10009 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0062 ,  H04B5/0081

Abstract: A method of wireless communication, with a circuit that includes a radio frequency identification (RFID) reader, can be carried out using a circuit that is configured and arranged to communicate with RFID cards that use load modulation of an RF carrier provided by the RFID reader. A presence of the radio frequency (RF) carrier is detected on an antenna. A local clock signal is generated. A difference between the local clock signal and the RF carrier is detected. In response to the detected difference, the frequency of the local clock signal is modified to reduce the detected difference. Load modulation of the RF carrier is mimicked by modulating the local clock signal to encode data; and driving the antenna with the modulated local clock signal.

Abstract translation: 使用包括射频识别（RFID）读取器的电路的无线通信的方法可以使用被配置和布置成与使用由RFID读取器提供的RF载体的负载调制的RFID卡进行通信的电路来执行 。 在天线上检测到射频（RF）载波的存在。 产生本地时钟信号。 检测本地时钟信号与RF载波之间的差异。 响应于检测到的差异，本地时钟信号的频率被修改以减小检测到的差异。 通过调制本地时钟信号来对数据进行编码来模拟RF载波的负载调制; 并用调制好的本地时钟信号驱动天线。

公开(公告)号：US20140055246A1

公开(公告)日：2014-02-27

申请号：US14072726

申请日：2013-11-05

Applicant: NXP B.V.

Inventor： Klemens Breitfuss ,  Peter Thueringer

IPC: G06K7/10

CPC classification number: G06K7/10029 ,  G06K7/0008 ,  G06K7/10059

Abstract: Data carriers for inventorying by means of a communication station, whereby the communication station and each data carrier are brought into communicative connection, and each data carrier brought into communicative connection with the communication station is configured to generate a response signal that renders possible an inventorying of the data carrier and is capable of delivering a generated response signal with the use of a transmission start moment that can be selected from a plurality of transmission start moments, each data carrier tests whether another data carrier is already giving its response signal. Each data carrier is configured to discontinue the generation or delivery of its response signal if another data carrier is already providing its response signal.

Abstract translation: 用于通过通信站进行库存的数据载体，由此使通信站和每个数据载体进行通信连接，并且与通信站进行通信连接的每个数据载体被配置为产生响应信号，其使得可能的库存 数据载体并且能够通过使用可以从多个传输开始时刻中选择的传输开始时刻来传递所生成的响应信号，每个数据载体测试另一个数据载体是否已经提供其响应信号。 如果另一数据载体已经提供其响应信号，则每个数据载体被配置为中止其响应信号的产生或传递。