JP2005322119A - Device for preventing illegal taking of article equipped with ic tag - Google Patents

Device for preventing illegal taking of article equipped with ic tag Download PDF

Info

Publication number
JP2005322119A
JP2005322119A JP2004140829A JP2004140829A JP2005322119A JP 2005322119 A JP2005322119 A JP 2005322119A JP 2004140829 A JP2004140829 A JP 2004140829A JP 2004140829 A JP2004140829 A JP 2004140829A JP 2005322119 A JP2005322119 A JP 2005322119A
Authority
JP
Japan
Prior art keywords
ic tag
gate
antenna
communication
receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2004140829A
Other languages
Japanese (ja)
Inventor
Takashi Hasegawa
Isao Sakaguchi
長谷川隆
阪口勲
Original Assignee
Ic Brains Co Ltd
株式会社Icブレインズ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ic Brains Co Ltd, 株式会社Icブレインズ filed Critical Ic Brains Co Ltd
Priority to JP2004140829A priority Critical patent/JP2005322119A/en
Priority claimed from PCT/JP2005/007860 external-priority patent/WO2005106782A1/en
Publication of JP2005322119A publication Critical patent/JP2005322119A/en
Application status is Withdrawn legal-status Critical

Links

Abstract

<P>PROBLEM TO BE SOLVED: To prevent illegal taking of an article equipped with an IC tag by detecting any communication interference caused by metal or hand. <P>SOLUTION: One side of a gate 1 is used as the transmitting side and the other side as the receiving side and transmitting antennas 2, 3 and receiving antennas 4, 5 are arranged oppositely to each other. A transmitter 6 and a receiver 7 are connected respectively to the transmitting antennas and the receiving antennas. A lamp 8 that displays an alarm is mounted at the top of the gate 1 and the transmitter 6, the receiver 7 and the lamp 8 are integrally connected to one another. The transmitting antenna 2 transmits an ID reading signal to the IC tag 10 attached to the article 9 passing through the gate 1. The receiving antenna 4 receives a response signal from the IC tag 10. The receiving antenna 5 receives an inspection signal transmitted from the transmitting antenna 3. The inspection signal uses a different carrier frequency than the ID reading signal. The frequency band used is divided into a plurality of frequency channels to allow communication in such a way that the frequency of a carrier wave is switched in a time-sharing manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、倉庫や店舗などの出入口にアンテナ付きゲートを設置してICタグ付き物品の不正持ち出しを防止するICタグ付き物品の不正持ち出し防止装置に関する。 The present invention relates to illegal carrier apparatus for preventing IC tagged article to prevent unauthorized taking out of the warehouse and IC-tagged article by installing an antenna with gate entrance of shops.

リーダ/ライタとの間で無線でデータをやり取りするICタグを商品に付加して倉庫や店舗などの出入口にアンテナ付きゲートを設置することで製造から販売に至る流通過程で在庫情報と入出庫情報をリアルタイムに入手し、商品の不正持ち出しを防止することができる。 Wirelessly inventory information and goods movements information distribution process through to sales from the production by the IC tag to exchange data by adding the product to install an antenna with gate entrance, such as warehouses and store with the reader / writer the available in real time, it is possible to prevent the unauthorized taking out of goods.
ICタグは135kHz以下の長波帯、13.56MHzの短波帯、2.45GHzのマイクロ波帯などを使用してリーダ/ライタと通信するが、ICタグとリーダ/ライタの間に金属があると磁界や電波が金属に吸収されてしまうため、どの帯域においても通信し難くなる。 IC tag following the long-wave band 135 kHz, 13.56 MHz shortwave band, but using such 2.45GHz microwave band to communicate with a reader / writer, when there is a metal between the IC tag and the reader / writer field because and radio waves is absorbed by the metal, it becomes difficult to communicate in any band.

135kHz以下の場合は磁界が金属の隙間を抜けて回折し、通信できることもあるが通信距離が極端に短くなる。 For 135kHz or less diffracted magnetic field leaves the gap of the metal, also the communication distance is extremely short can communicate.
13.56MHz帯の場合は金属に発生する電流がICタグの磁界を打ち消す方向に流れるため、ICタグは起電力をほとんど得られなくなる。 Since the current in the case of 13.56MHz band generated in the metal flows in a direction to cancel the magnetic field of the IC tag, IC tag can not be obtained almost an electromotive force.
2.45GHz帯の場合はアンテナの同調がずれて通信ができなくなる。 In the case of 2.45GHz band can not communicate with shift tuning of the antenna.
また、2.45GHz帯の電波は電子レンジにも利用されているように、水によく吸収されるので、人体を通過しない。 Moreover, as radio waves of 2.45GHz band is also used in the microwave oven, since is well absorbed in water, it does not pass through the human body.
そのため、ICタグの部分をアルミシートなどの金属や手などで覆うと通信できなくなって簡単にゲートを通過できるという問題が発生する。 Therefore, a problem that a portion of the IC tag can pass easily gate can no longer communicate with covered with a metal or a hand, such as aluminum sheet is produced.

解決しようとする問題点は、ICタグを金属や手で覆うと通信できなくなる点であり、本発明は、金属や手による通信妨害を検知してICタグ付き物品の不正持ち出しを防止することを目的になされたものである。 A problem to be solved is a point that can not communicate with the covering IC tag with metal and hand, the present invention detects the communication jamming due to the metal or hand to prevent unauthorized taking out IC tagged items It has been made for the purpose.

本発明は、ゲートに設置したアンテナとゲートを通過するICタグが通信する第1の通信手段と、ゲートに設置したアンテナ同士が通信する第2の通信手段と、前記第1の通信手段が通信不能を検知したときは前記第2の通信手段に切り換える切換手段と、切り換え後に前記第2の通信手段が通信不能を検知したときはアラームを報知する報知手段とを備えることを最も主要な特徴とする。 The present invention includes a first communication means for IC tag through an antenna and a gate installed at the gate to communicate, a second communication means for the antenna each other and installed in the gate to communicate the first communication means communicating when detecting impossible and switching means for switching to the second communication means, and most important, comprising a notifying means for notifying an alarm when the second communication unit detects the incommunicable after switching to.

本発明は、ゲートに設置したアンテナとICタグの通信が不能になったときはアンテナ同士の通信に切り換えるので、金属や手による通信妨害を確実に検知できるようになる。 The present invention, when a communication antenna and an IC tag installed in the gate becomes impossible since switching to a communication antenna between, it becomes possible to reliably detect the communication jamming due to the metal and hands.
また、アンテナ同士の通信が不能であればアラームを報知するので、ICタグ付き物品の不正持ち出しを確実に検知できるようになる。 Further, since the notification alarm if unable to communicate with the antenna each other, it becomes possible to reliably detect the illegal carrier of IC-tagged article.

以下、本発明の実施の形態について説明する。 The following describes embodiments of the present invention.

図1に、本発明を実施したICタグ付き物品の不正持ち出し防止装置の概略図を示す。 Figure 1 shows a schematic diagram of illegal carrier prevention device IC-tagged articles embodying the present invention.
不正持ち出し防止装置は、ゲート1の一方を送信側、他方を受信側として送信アンテナ2、3と受信アンテナ4、5を対向させて配置し、それぞれに送信機6と受信機7を接続する。 Illegal carrier preventing device, while the transmitting side of the gate 1, and are opposed to the receiving antenna 4, 5 and the transmission antennas 2, 3 and the other as a receiver arranged to connect the transmitter 6 and receiver 7, respectively. また、ゲート1の上方にアラームを表示するランプ8を取り付け、送信機6、受信機7およびランプ8を一体に接続する。 Further, attaching a lamp 8 for displaying an alarm over the gate 1, connect the transmitter 6, a receiver 7 and a lamp 8 together.

送信アンテナ2はゲート1を通過する物品9に付加したICタグ10にIDの読み取り信号を送信し、受信アンテナ4はICタグ10からの応答信号を受信する。 Transmitting antenna 2 sends the IC tag 10 to the ID read signal obtained by adding to the article 9 passing through the gate 1, the receiving antenna 4 receives a response signal from the IC tag 10.
このとき、例えばIDの読み取り信号をASK変調方式、応答信号をFSK変調方式とするなど異なる変調方式で変調してIDの読み取り信号と応答信号を識別しやすくする。 In this case, for example, the read signal the ASK modulation scheme ID, the response signal easier to identify the different modulation schemes read signal and the response signal of the modulated and ID, etc. and FSK modulation scheme.

送信アンテナ3は金属や手などによる通信妨害を検知するための検査信号を送信し、受信アンテナ5は送信アンテナ3から送られた検査信号を受信する。 Transmission antenna 3 transmits a test signal for detecting a communication jamming due to metals and hand, the receiving antenna 5 receives the test signal transmitted from the transmitting antenna 3.
検査信号はIDの読み取り信号とは異なる搬送周波数を使用し、例えばIDの読み取り信号の搬送周波数を13.56MHz帯とした場合、それとは異なる2.45GHz帯を使用する。 Test signal using a different carrier frequency and the read signal of the ID, for example, when the carrier frequency of the ID read signal to the 13.56MHz band, using different 2.45GHz band with it.
これにより、周波数帯によって異なる電波の特性を有効に活用して通信妨害の検知を容易にする。 This facilitates the detection of the effective use to communicate interfere with different wave characteristics by the frequency band.
また、使用する周波数帯を複数の周波数チャネルに分割し、時分割で搬送波の周波数を切り換えて通信できるようにする。 Moreover, dividing a frequency band used for a plurality of frequency channels, time division to communicate by switching the frequency of the carrier.
これにより、使用する搬送周波数の帯域を広くして電波干渉によって発生する通信障害を回避する。 This avoids a communication failure caused by radio interference and wide band of the carrier frequency to be used.
なお、送信アンテナ2、3と受信アンテナ4、5は13.56MHz帯を使用する電磁誘導方式の場合はループコイルアンテナとなり、2.45GHz帯を使用するマイクロ波方式の場合は平板に印刷されたマイクロストリップアンテナとなる。 The receiving antennas 4, 5 and the transmission antennas 2, 3 in the case of an electromagnetic induction method using a 13.56MHz band becomes a loop coil antenna, in the case of a microwave method using a 2.45GHz band printed a flat plate a micro-strip antenna.

送信機6と受信機7は、それぞれ図示しないアンテナ切換回路を内蔵して送信アンテナ2、3と受信アンテナ4、5の切り換えを行い、図示しない周波数シンセサイザを内蔵して複数の周波数チャネルに分割した送受信周波数を合成し、一定の時間間隔で送受信周波数を切り換える。 Transmitter 6 and receiver 7, a built-in antenna switching circuit (not shown) respectively transmit antennas 2 and 3 perform the switching of the receiving antennas 4 and 5, divided by a built-in frequency synthesizer (not shown) into a plurality of frequency channels It was synthesized transmission and reception frequencies, switching the reception frequency at regular time intervals.
また、送信機6から受信機7に同期信号を送出して送受信のタイミングを同期させる。 Further, it sends a synchronization signal to the receiver 7 to synchronize the timing of transmission and reception from the transmitter 6.

図2に、ICタグ付き物品の不正持ち出し防止処理のフローチャートを示す。 Figure 2 shows a flow chart of illegal carrier prevention processing IC tagged items.
まず、ステップ101において送信機6が送信アンテナ2を経由して搬送周波数f0でIDの読み取り信号を送信する。 First, the transmitter 6 in step 101 transmits a reading signal ID at the carrier frequency f0 via the transmitting antenna 2.
次に、ステップ102において受信機7が受信アンテナ4を経由してICタグ10からの応答信号を受信したかどうかを判定し、受信した場合はステップ101に戻ってIDの読み取り信号の送信を繰り返す。 Next, it is determined whether it has received a response signal from the IC tag 10 via the receiver 7 is a receiving antenna 4 at step 102, when receiving repeated transmission of the ID read signal returns to step 101 .
受信しない場合は次のステップ103において送信機6が送信アンテナ3を経由して時分割した搬送周波数f1〜fnで順番に検査信号を送信する。 Transmitter 6 in the next step 103 transmits a test signal in order at a carrier frequency f1~fn divided time via the transmitting antenna 3 if it does not receive.
次に、ステップ104において受信機7が受信アンテナ5を経由して全ての搬送周波数f1〜fnにおいて検査信号を受信したかどうかを判定し、受信した場合はステップ101に戻ってIDの読み取り信号の送信を繰り返す。 Then, via the receiving antenna 5 by the receiver 7 determines whether it has received the test signal at all carrier frequencies f1~fn in step 104, the ID read signal returns to the step 101 when receiving repeat the transmission.
受信しない場合は次のステップ105においてランプ8を点灯してアラームを報知し、処理を終了する。 If it does not receive the broadcasts an alarm by lighting the lamp 8 in a next step 105, the process ends.

本発明を実施したICタグ付き物品の不正持ち出し防止装置の概略図である。 It is a schematic diagram of illegal carrier prevention device IC-tagged articles embodying the present invention. ICタグ付き物品の不正持ち出し防止処理のフローチャートである。 It is a flowchart of illegal carrier prevention processing IC tagged items.

符号の説明 DESCRIPTION OF SYMBOLS

1 ゲート 2、3 送信アンテナ 4、5 受信アンテナ 6 送信機 7 受信機 9 物品 10 ICタグ 1 gate 2,3 transmit antennas 4,5 the receiving antenna 6 transmitter 7 receiver 9 article 10 IC tags

Claims (4)

  1. ゲートに設置したアンテナとゲートを通過するICタグが通信する第1の通信手段と、 A first communication means for IC tag through an antenna and a gate installed at the gate to communicate,
    ゲートに設置したアンテナ同士が通信する第2の通信手段と、 Second communication means for the antenna each other and installed in the gate to communicate,
    前記第1の通信手段が通信不能を検知したときは前記第2の通信手段に切り換える切換手段と、 And switching means for switching to the second communication means when the first communication unit detects the incommunicable,
    切り換え後に前記第2の通信手段が通信不能を検知したときはアラームを報知する報知手段と、 And informing means for informing an alarm when the second communication unit detects the incommunicable after switching,
    を備えることを特徴とするICタグ付き物品の不正持ち出し防止装置。 Illegal carrier prevention device IC-tagged article, characterized in that it comprises a.
  2. 前記第1の通信手段と第2の通信手段の通信周波数が異なることを特徴とする請求項1記載のICタグ付き物品の不正持ち出し防止装置。 The first communication means and illegal carrier prevention device IC-tagged article of claim 1, wherein the communication frequency of the second communication means are different.
  3. 前記第1の通信手段と第2の通信手段は通信時に送受信のタイミングを同期させることを特徴とする請求項1記載のICタグ付き物品の不正持ち出し防止装置。 The first communication means and second communication means illegal carrier prevention device IC-tagged article of claim 1, wherein the synchronizing the timing of the transmission and reception during communication.
  4. 前記第2の通信手段は複数の周波数チャネルを時分割で切り換えて通信することを特徴とする請求項1記載のICタグ付き物品の不正持ち出し防止装置。 The second communication means illegal carrier prevention device IC-tagged article of claim 1, wherein the communication is switched in a time division multiple frequency channels.
JP2004140829A 2004-05-11 2004-05-11 Device for preventing illegal taking of article equipped with ic tag Withdrawn JP2005322119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004140829A JP2005322119A (en) 2004-05-11 2004-05-11 Device for preventing illegal taking of article equipped with ic tag

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004140829A JP2005322119A (en) 2004-05-11 2004-05-11 Device for preventing illegal taking of article equipped with ic tag
PCT/JP2005/007860 WO2005106782A1 (en) 2004-04-28 2005-04-26 Ic tag and dishonest taking prevention device using ic tag

Publications (1)

Publication Number Publication Date
JP2005322119A true JP2005322119A (en) 2005-11-17

Family

ID=35469347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004140829A Withdrawn JP2005322119A (en) 2004-05-11 2004-05-11 Device for preventing illegal taking of article equipped with ic tag

Country Status (1)

Country Link
JP (1) JP2005322119A (en)

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145007A1 (en) * 2008-05-26 2009-12-03 株式会社村田製作所 Wireless ic device system and method for authenticating wireless ic device
US7967216B2 (en) 2008-05-22 2011-06-28 Murata Manufacturing Co., Ltd. Wireless IC device
US8011589B2 (en) 2008-06-25 2011-09-06 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
JP2011530765A (en) * 2008-08-12 2011-12-22 センサーマティック・エレクトロニクス・エルエルシー Metal detection system with built-in directional people counting system
US8177138B2 (en) 2008-10-29 2012-05-15 Murata Manufacturing Co., Ltd. Radio IC device
US8191791B2 (en) 2007-07-17 2012-06-05 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US8228765B2 (en) 2006-06-30 2012-07-24 Murata Manufacturing Co., Ltd. Optical disc
US8299929B2 (en) 2006-09-26 2012-10-30 Murata Manufacturing Co., Ltd. Inductively coupled module and item with inductively coupled module
US8336786B2 (en) 2010-03-12 2012-12-25 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US8342416B2 (en) 2009-01-09 2013-01-01 Murata Manufacturing Co., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8360330B2 (en) 2007-12-26 2013-01-29 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8381997B2 (en) 2009-06-03 2013-02-26 Murata Manufacturing Co., Ltd. Radio frequency IC device and method of manufacturing the same
US8400307B2 (en) 2007-07-18 2013-03-19 Murata Manufacturing Co., Ltd. Radio frequency IC device and electronic apparatus
US8400365B2 (en) 2009-11-20 2013-03-19 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8418928B2 (en) 2009-04-14 2013-04-16 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8424762B2 (en) 2007-04-14 2013-04-23 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8424769B2 (en) 2010-07-08 2013-04-23 Murata Manufacturing Co., Ltd. Antenna and RFID device
US8531346B2 (en) 2007-04-26 2013-09-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8546927B2 (en) 2010-09-03 2013-10-01 Murata Manufacturing Co., Ltd. RFIC chip mounting structure
US8552870B2 (en) 2007-07-09 2013-10-08 Murata Manufacturing Co., Ltd. Wireless IC device
US8583043B2 (en) 2009-01-16 2013-11-12 Murata Manufacturing Co., Ltd. High-frequency device and wireless IC device
US8590797B2 (en) 2008-05-21 2013-11-26 Murata Manufacturing Co., Ltd. Wireless IC device
US8596545B2 (en) 2008-05-28 2013-12-03 Murata Manufacturing Co., Ltd. Component of wireless IC device and wireless IC device
US8602310B2 (en) 2010-03-03 2013-12-10 Murata Manufacturing Co., Ltd. Radio communication device and radio communication terminal
US8610636B2 (en) 2007-12-20 2013-12-17 Murata Manufacturing Co., Ltd. Radio frequency IC device
US8613395B2 (en) 2011-02-28 2013-12-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8676117B2 (en) 2006-01-19 2014-03-18 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8680971B2 (en) 2009-09-28 2014-03-25 Murata Manufacturing Co., Ltd. Wireless IC device and method of detecting environmental state using the device
US8692718B2 (en) 2008-11-17 2014-04-08 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8718727B2 (en) 2009-12-24 2014-05-06 Murata Manufacturing Co., Ltd. Antenna having structure for multi-angled reception and mobile terminal including the antenna
US8720789B2 (en) 2012-01-30 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device
US8740093B2 (en) 2011-04-13 2014-06-03 Murata Manufacturing Co., Ltd. Radio IC device and radio communication terminal
US8757500B2 (en) 2007-05-11 2014-06-24 Murata Manufacturing Co., Ltd. Wireless IC device
US8770489B2 (en) 2011-07-15 2014-07-08 Murata Manufacturing Co., Ltd. Radio communication device
US8797225B2 (en) 2011-03-08 2014-08-05 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US8797148B2 (en) 2008-03-03 2014-08-05 Murata Manufacturing Co., Ltd. Radio frequency IC device and radio communication system
US8810456B2 (en) 2009-06-19 2014-08-19 Murata Manufacturing Co., Ltd. Wireless IC device and coupling method for power feeding circuit and radiation plate
US8814056B2 (en) 2011-07-19 2014-08-26 Murata Manufacturing Co., Ltd. Antenna device, RFID tag, and communication terminal apparatus
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8905316B2 (en) 2010-05-14 2014-12-09 Murata Manufacturing Co., Ltd. Wireless IC device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9077067B2 (en) 2008-07-04 2015-07-07 Murata Manufacturing Co., Ltd. Radio IC device
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9123996B2 (en) 2010-05-14 2015-09-01 Murata Manufacturing Co., Ltd. Wireless IC device
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US9231305B2 (en) 2008-10-24 2016-01-05 Murata Manufacturing Co., Ltd. Wireless IC device
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag

Cited By (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8725071B2 (en) 2006-01-19 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8676117B2 (en) 2006-01-19 2014-03-18 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US8228765B2 (en) 2006-06-30 2012-07-24 Murata Manufacturing Co., Ltd. Optical disc
US8299929B2 (en) 2006-09-26 2012-10-30 Murata Manufacturing Co., Ltd. Inductively coupled module and item with inductively coupled module
US8424762B2 (en) 2007-04-14 2013-04-23 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8531346B2 (en) 2007-04-26 2013-09-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8757500B2 (en) 2007-05-11 2014-06-24 Murata Manufacturing Co., Ltd. Wireless IC device
US8662403B2 (en) 2007-07-04 2014-03-04 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8552870B2 (en) 2007-07-09 2013-10-08 Murata Manufacturing Co., Ltd. Wireless IC device
US8413907B2 (en) 2007-07-17 2013-04-09 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US8191791B2 (en) 2007-07-17 2012-06-05 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US9830552B2 (en) 2007-07-18 2017-11-28 Murata Manufacturing Co., Ltd. Radio IC device
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US8400307B2 (en) 2007-07-18 2013-03-19 Murata Manufacturing Co., Ltd. Radio frequency IC device and electronic apparatus
US8610636B2 (en) 2007-12-20 2013-12-17 Murata Manufacturing Co., Ltd. Radio frequency IC device
US8915448B2 (en) 2007-12-26 2014-12-23 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8360330B2 (en) 2007-12-26 2013-01-29 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8797148B2 (en) 2008-03-03 2014-08-05 Murata Manufacturing Co., Ltd. Radio frequency IC device and radio communication system
US8973841B2 (en) 2008-05-21 2015-03-10 Murata Manufacturing Co., Ltd. Wireless IC device
US9022295B2 (en) 2008-05-21 2015-05-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8590797B2 (en) 2008-05-21 2013-11-26 Murata Manufacturing Co., Ltd. Wireless IC device
US7967216B2 (en) 2008-05-22 2011-06-28 Murata Manufacturing Co., Ltd. Wireless IC device
US8047445B2 (en) 2008-05-22 2011-11-01 Murata Manufacturing Co., Ltd. Wireless IC device and method of manufacturing the same
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
WO2009145007A1 (en) * 2008-05-26 2009-12-03 株式会社村田製作所 Wireless ic device system and method for authenticating wireless ic device
US8596545B2 (en) 2008-05-28 2013-12-03 Murata Manufacturing Co., Ltd. Component of wireless IC device and wireless IC device
US8011589B2 (en) 2008-06-25 2011-09-06 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US9077067B2 (en) 2008-07-04 2015-07-07 Murata Manufacturing Co., Ltd. Radio IC device
JP2011530765A (en) * 2008-08-12 2011-12-22 センサーマティック・エレクトロニクス・エルエルシー Metal detection system with built-in directional people counting system
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US9231305B2 (en) 2008-10-24 2016-01-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8177138B2 (en) 2008-10-29 2012-05-15 Murata Manufacturing Co., Ltd. Radio IC device
US8692718B2 (en) 2008-11-17 2014-04-08 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8917211B2 (en) 2008-11-17 2014-12-23 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8544759B2 (en) 2009-01-09 2013-10-01 Murata Manufacturing., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8342416B2 (en) 2009-01-09 2013-01-01 Murata Manufacturing Co., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8583043B2 (en) 2009-01-16 2013-11-12 Murata Manufacturing Co., Ltd. High-frequency device and wireless IC device
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8418928B2 (en) 2009-04-14 2013-04-16 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8876010B2 (en) 2009-04-14 2014-11-04 Murata Manufacturing Co., Ltd Wireless IC device component and wireless IC device
US8690070B2 (en) 2009-04-14 2014-04-08 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US9564678B2 (en) 2009-04-21 2017-02-07 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US9203157B2 (en) 2009-04-21 2015-12-01 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8381997B2 (en) 2009-06-03 2013-02-26 Murata Manufacturing Co., Ltd. Radio frequency IC device and method of manufacturing the same
US8810456B2 (en) 2009-06-19 2014-08-19 Murata Manufacturing Co., Ltd. Wireless IC device and coupling method for power feeding circuit and radiation plate
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8680971B2 (en) 2009-09-28 2014-03-25 Murata Manufacturing Co., Ltd. Wireless IC device and method of detecting environmental state using the device
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US8400365B2 (en) 2009-11-20 2013-03-19 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8704716B2 (en) 2009-11-20 2014-04-22 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8718727B2 (en) 2009-12-24 2014-05-06 Murata Manufacturing Co., Ltd. Antenna having structure for multi-angled reception and mobile terminal including the antenna
US8602310B2 (en) 2010-03-03 2013-12-10 Murata Manufacturing Co., Ltd. Radio communication device and radio communication terminal
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US8336786B2 (en) 2010-03-12 2012-12-25 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US8528829B2 (en) 2010-03-12 2013-09-10 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US9123996B2 (en) 2010-05-14 2015-09-01 Murata Manufacturing Co., Ltd. Wireless IC device
US8905316B2 (en) 2010-05-14 2014-12-09 Murata Manufacturing Co., Ltd. Wireless IC device
US8424769B2 (en) 2010-07-08 2013-04-23 Murata Manufacturing Co., Ltd. Antenna and RFID device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US8546927B2 (en) 2010-09-03 2013-10-01 Murata Manufacturing Co., Ltd. RFIC chip mounting structure
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US8757502B2 (en) 2011-02-28 2014-06-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8960561B2 (en) 2011-02-28 2015-02-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8613395B2 (en) 2011-02-28 2013-12-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8797225B2 (en) 2011-03-08 2014-08-05 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8740093B2 (en) 2011-04-13 2014-06-03 Murata Manufacturing Co., Ltd. Radio IC device and radio communication terminal
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8770489B2 (en) 2011-07-15 2014-07-08 Murata Manufacturing Co., Ltd. Radio communication device
US8814056B2 (en) 2011-07-19 2014-08-26 Murata Manufacturing Co., Ltd. Antenna device, RFID tag, and communication terminal apparatus
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8720789B2 (en) 2012-01-30 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag

Similar Documents

Publication Publication Date Title
US7253717B2 (en) Method and system for communicating with and tracking RFID transponders
US7408456B2 (en) Wireless communication system
US6963289B2 (en) Wireless local area network (WLAN) channel radio-frequency identification (RFID) tag system and method therefor
US6100790A (en) Modulated backscatter wireless communication system having an extended range
US6989741B2 (en) Object tracking
EP0592781B1 (en) Article surveillance system with frequency hopping
JP4531094B2 (en) System and method for detecting EAS / RFID tags using step reception
ES2595985T3 (en) RFID tags with EAS deactivation capability
US7304579B2 (en) RFID reader to select code modules
JP5268891B2 (en) Label incorporating RF anti-theft antenna and UHF RFID transponder
CA2494896C (en) Monitoring antenna system
US20080048863A1 (en) Combination Eas And Rfid Label Or Tag With Controllable Read Range
US8102243B2 (en) RFID protection device, and related methods
JP4029361B2 (en) Radio-Frequency Engineering transponder with an antenna and frequency detuning circuit
JP4296215B2 (en) Electronic merchandise tracking system for retail racks using loop antennas
US8077041B2 (en) Real-time automatic RFID inventory control system
US6693511B1 (en) System and method for communicating with dormant radio frequency identification tags
US6396438B1 (en) System and method for locating radio frequency identification tags using three-phase antenna
EP1899931B1 (en) Techniques for detecting rfid tags in electronic article surveillance systems using frequency mixing
TW561430B (en) Radio frequency detection and identification system
US6661335B1 (en) System and method for locating radio frequency identification tags
US7321290B2 (en) Radio tag and system
US5726630A (en) Detection of multiple articles
EP2315154B1 (en) RFID system
US5955950A (en) Low noise signal generator for use with an RFID system

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20070807