公开(公告)号：EP3258608A1

公开(公告)日：2017-12-20

申请号：EP17183994.7

申请日：2012-06-11

Applicant: DRNC Holdings, Inc.

Inventor： MANKU, Tajinder

IPC: H04B1/59 ,  H03M7/32 ,  H04B7/005 ,  H04L27/34 ,  G06K7/00 ,  G06K19/07 ,  H01Q1/22

CPC classification number: H01Q1/2225 ,  G06K19/0701 ,  G06K19/0723

Abstract: A communication apparatus comprising an antenna for backscattering an incoming RF signal in accordance with a reflection coefficient of the antenna. The communication apparatus comprises at least one low pass delta sigma modulator which modulates the signal at its input and digitally controls the output of a variable impedance circuit, wherein the reflection coefficient of the antenna is varied based on the output of the variable impedance circuit. This communication device can be used in applications such as RFID tags.

Abstract translation: 一种通信设备，包括用于根据天线的反射系数对输入RF信号进行反向散射的天线。 该通信设备包括至少一个低通Δ-Σ调制器，其在其输入端调制信号并数字控制可变阻抗电路的输出，其中天线的反射系数基于可变阻抗电路的输出而变化。 该通信设备可以用于诸如RFID标签的应用中。

公开(公告)号：EP3070639B1

公开(公告)日：2017-11-08

申请号：EP16161737.8

申请日：2010-09-13

Applicant: Bundesdruckerei GmbH

Inventor： TIETKE, Markus ,  FRITZE, Frank ,  PAESCHKE, Dr., Manfred ,  FISCHER, Jörg

IPC: G06K7/10 ,  G06K7/00 ,  G06K19/07

CPC classification number: G06K19/0701 ,  G06K7/0008 ,  G06K7/10128 ,  G06K7/10237

公开(公告)号：EP2784718B1

公开(公告)日：2017-11-01

申请号：EP14167292.3

申请日：2009-03-25

Applicant: Canon Kabushiki Kaisha

Inventor： Aoki, Norihito

IPC: G06K7/00 ,  G06K19/07 ,  G06K7/08 ,  G06K7/10 ,  H02J5/00 ,  H04B5/00

CPC classification number: H04B5/0037 ,  G06K7/0008 ,  G06K7/10336 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723 ,  H02J5/005 ,  H02J7/025 ,  H02J50/10

Abstract: A communication apparatus comprises power receiving means for receiving electrical power wirelessly supplied from another communication apparatus; first communication means for performing, in response to a first power reception by the power receiving means and using electrical power received in the first power reception by the power receiving means, communication for requesting a second power reception; second communication means for performing wireless communication, wherein an antenna that is used for communication by the second communication means differs from an antenna that is used for communication by the first communication means; and control means for controlling the second communication means to operate using electrical power received in the second power reception by the power receiving means.

公开(公告)号：EP2711872B1

公开(公告)日：2017-10-25

申请号：EP13184293.2

申请日：2013-09-13

Applicant: Kabushiki Kaisha Toshiba

Inventor： Sudo, Kiyohito

IPC: G06K19/07 ,  G06K19/073 ,  G06K7/00 ,  G06K7/10 ,  H02J7/00 ,  H04B5/00

CPC classification number: G06K19/073 ,  G06K7/0008 ,  G06K7/10009 ,  G06K7/10207 ,  G06K7/10237 ,  G06K19/0701 ,  G06K19/0702 ,  G06K19/0707 ,  G06K19/0708 ,  G06K19/0709 ,  G06K19/0723 ,  H02J7/00 ,  H04B5/0037 ,  H04B5/0056

公开(公告)号：EP2483831B1

公开(公告)日：2016-11-09

申请号：EP10760636.0

申请日：2010-09-13

Applicant: Bundesdruckerei GmbH

Inventor： TIETKE, Markus ,  FRITZE, Frank ,  PAESCHKE, Manfred ,  FISCHER, Jörg

IPC: G06K7/00

CPC classification number: G06K19/0701 ,  G06K7/0008 ,  G06K7/10128 ,  G06K7/10237

公开(公告)号：EP2697744B1

公开(公告)日：2016-10-26

申请号：EP12712123.4

申请日：2012-04-05

Applicant: EM Microelectronic-Marin SA

Inventor： RANDJELOVIC, Zoran

IPC: G06K7/10 ,  G06K19/07

CPC classification number: G06K7/10366 ,  G06K19/0701 ,  G06K19/0723

公开(公告)号：EP2966598B1

公开(公告)日：2016-08-31

申请号：EP15178337.0

申请日：2012-02-29

Applicant: Tyfone, Inc.

Inventor： NARENDRA, Siva ,  CHAKRABORTY, Saurav ,  TADEPALLI, Prabhakar

IPC: G06K19/077 ,  G06K19/07 ,  G06K19/073 ,  G06Q20/00 ,  H04B1/3816 ,  H04B5/00 ,  G06Q20/20

CPC classification number: G06K19/0727 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/073 ,  G06K19/07732 ,  G06K19/07749 ,  G06K19/07769 ,  G06Q20/204 ,  G06Q20/3278 ,  H04B1/3816 ,  H04B5/0025 ,  H04B5/0062 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/166 ,  Y02D70/42

Abstract: An RFID card includes a smartcard controller that receives power from a host device. The RFID card also includes a small inductive device capable of inductive coupling with an RFID reader. The small inductive device is small enough to fit in the form factor of a memory card or SIM card. Enhancement circuits enhance the usable read and write distance of the RFID card.

公开(公告)号：EP2235838B1

公开(公告)日：2015-12-16

申请号：EP09703411.0

申请日：2009-01-23

Applicant: Broadcom Europe Ltd.

Inventor： BUTLER, Paul

IPC: H04B5/00

CPC classification number: H04B1/1607 ,  G06K19/0701 ,  G06K19/0723 ,  G11C5/142 ,  H04B5/0018 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081 ,  Y02D70/166

Abstract: A near field RF communicator has an antenna circuit (1020 coupled to an active switched rectifier (301) to rectify a received RF magnetic field signal. The active switched rectifier also has a passive mode of operation. A switching mechanism in the forward conducting arms of the rectifier is controlled by a comparator (309). A switching mechanism to control ground clamping of each respective input from the antenna circuit is provided by a coupling to the other respective input from the antenna circuit.

公开(公告)号：EP2667328B1

公开(公告)日：2015-10-21

申请号：EP13020057.9

申请日：2009-09-02

Applicant: Qualcomm Incorporated

Inventor： Cook, Nigel, P. ,  Sieber, Lukas ,  Widmer, Hanspeter

IPC: G06K19/077 ,  G06K19/07 ,  G06K7/00 ,  G06K7/10 ,  H02J5/00 ,  H02J17/00

CPC classification number: G06K19/0723 ,  G06K7/0008 ,  G06K7/10207 ,  G06K19/0701 ,  G06K19/0702 ,  G06K19/0715 ,  G06K19/07749 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12

公开(公告)号：EP2235839B1

公开(公告)日：2015-09-30

申请号：EP09704344.2

申请日：2009-01-23

Applicant: Innovision Research & Technology PLC

Inventor： BUTLER, Paul

IPC: H04B5/02

CPC classification number: H04B1/1607 ,  G06K19/0701 ,  G06K19/0723 ,  G11C5/142 ,  H04B5/0018 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081 ,  Y02D70/166

Abstract: A near field RF communicator has an antenna circuit (1020 coupled to an active switched rectifier (301) to rectify a received RF magnetic field signal. The active switched rectifier also has a passive mode of operation. A switching mechanism in the forward conducting arms of the rectifier is controlled by a comparator (309). A switching mechanism to control ground clamping of each respective input from the antenna circuit is provided by a coupling to the other respective input from the antenna circuit.