JP2003536302A - Telecommunications systems and methods - Google Patents
Telecommunications systems and methodsInfo
- Publication number
- JP2003536302A JP2003536302A JP2002502707A JP2002502707A JP2003536302A JP 2003536302 A JP2003536302 A JP 2003536302A JP 2002502707 A JP2002502707 A JP 2002502707A JP 2002502707 A JP2002502707 A JP 2002502707A JP 2003536302 A JP2003536302 A JP 2003536302A
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- data signal
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- 238000000034 method Methods 0.000 title claims description 21
- 238000004891 communication Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000003071 parasitic effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Near-Field Transmission Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
(57)【要約】 遠隔通信デバイスを提供し、このデバイスは、第１の信号と第２の信号とを異なった周波数で受信し、また第３の信号を送信するように構成したアンテナと、該アンテナに結合しており、前記第１信号から電源電圧を提供するように構成した電力回路と、前記アンテナと前記電力回路に結合しており、前記電源電圧を使用して前記第３信号を発生するように構成した識別回路と、から成る。理想的には、前記第１および第２の信号は、単一のアンテナを介して同時に受信し、そしてこのアンテナは、前記第３信号を送信するのにも使用することができる。代替的には、前記第１信号を受信するために第１のアンテナを使用し、前記第２信号の受信と前記第３信号の送信の両方を行うために第２のアンテナを使用する。１実施形態においては、エネルギ信号は、第１の周波数でタグに送信し、そしてこのタグは、それを整流し使用して、第２の周波数の前記第２信号を受信し、また前記第２信号を、前記第２周波数あるいは異なった周波数での送信のため前記第３信号に変換する。前記エネルギ信号は、壁電流、既存の無線波のような寄生ソースあるいは自然または人工の光からのものとすることができる。 SUMMARY A telecommunication device is provided, the device configured to receive a first signal and a second signal at different frequencies and to transmit a third signal; A power circuit coupled to the antenna and configured to provide a power supply voltage from the first signal; and a power circuit coupled to the antenna and the power circuit and using the power supply voltage to generate the third signal. And an identification circuit configured to generate. Ideally, the first and second signals are received simultaneously via a single antenna, and this antenna can also be used to transmit the third signal. Alternatively, a first antenna is used to receive the first signal, and a second antenna is used to both receive the second signal and transmit the third signal. In one embodiment, an energy signal is transmitted to a tag at a first frequency, and the tag rectifies and uses the tag to receive the second signal at a second frequency and to transmit the second signal at a second frequency. A signal is converted to the third signal for transmission at the second frequency or a different frequency. The energy signal can be from a wall current, a parasitic source such as existing radio waves, or natural or artificial light.
Description
【０００１】
発明の分野
本発明は、遠隔通信システムに関し、特に、ＲＦ識別タグに対し第１の周波数
で遠隔エネルギを提供しそしてこのタグとの間で第２の周波数で通信するための
無線周波（ＲＦ）識別のシステムおよび方法に関するものである。FIELD OF THE INVENTION The present invention relates to telecommunications systems, and more particularly to radio frequency for providing RF energy to a RF identification tag at a first frequency and for communicating with the tag at a second frequency. (RF) identification systems and methods.
【０００２】
発明の背景
無線機器を利用する遠隔通信は、代表的には、無線周波（ＲＦ）技術に頼って
おり、この技術は、多くの産業において用いられている。ＲＦ技術の１つの応用
は、動物、在庫品、車両のような物体の位置の突き止め、識別、および追跡にお
いてある。[0002] Remote communication using the background wireless device of the present invention is typically relies on radio frequency (RF) technology, this technique has been used in many industries. One application of RF technology is in locating, identifying, and tracking objects such as animals, inventory, and vehicles.
【０００３】
ＲＦ識別（ＲＦＩＤ）タグ・システムで、遠隔の物体の監視を容易にするため
のものが開発されている。図１に示したように、基本的なＲＦＩＤシステム１０
は、３つのコンポーネント、すなわち、アンテナ１２と、デコーダ付きの送受信
器１４と、トランスポンダ（一般にＲＦタグと呼ぶ）１６とを含んでいる。動作
については、アンテナ１２は、送受信器１４が発生した電磁的無線信号を放出し
て、タグ１６を活性化する。タグ１６が活性化されると、このタグからのデータ
の読み出しあるいはこのタグへのデータの書き込みができる。RF identification (RFID) tag systems have been developed to facilitate the monitoring of remote objects. As shown in FIG. 1, a basic RFID system 10
Includes three components: an antenna 12, a transceiver 14 with a decoder, and a transponder (commonly referred to as an RF tag) 16. In operation, the antenna 12 emits an electromagnetic radio signal generated by the transceiver 14 to activate the tag 16. When the tag 16 is activated, data can be read from this tag or data can be written to this tag.
【０００４】
ある種の用途においては、アンテナ１２は、送受信器／デコーダ１４の１つの
コンポーネントであってインターロゲータ（リーダ）１８となり、そしてこれは
、ハンドヘルドまたは固定装着のいずれかのデバイスとして構成することができ
る。インターロゲータ１８は、使用するその電力出力および無線周波数に依存し
て、１インチから１００フィートあるいはそれ以上までのレンジで、無線信号２
０を放出する。この電磁無線波２０中をＲＦタグが通過するとき、タグ１６は、
その信号２０を検出し、そして活性化される。このとき、タグ１６内にエンコー
ドされたデータは、変調されたデータ信号２２によって、アンテナ２４からイン
ターロゲータ１８へと送信されて、その後の処理を受ける。In some applications, the antenna 12 is a component of the transceiver / decoder 14 and becomes an interrogator (reader) 18, which is configured as a device, either handheld or fixed mounted. can do. The interrogator 18, depending on its power output and the radio frequency used, may range from 1 inch to 100 feet or more to the radio signal 2
Release 0. When the RF tag passes through this electromagnetic radio wave 20, the tag 16
The signal 20 is detected and activated. At this time, the data encoded in the tag 16 is transmitted from the antenna 24 to the interrogator 18 by the modulated data signal 22, and undergoes the subsequent processing.
【０００５】
ＲＦＩＤシステムの利点は、この技術の非接触で、非照準線の能力である。タ
グは、雪、霧、氷、ペイント、汚れ、およびバーコードあるいはその他の光学的
読み取り技術が効果のないその他の視覚的かつ環境的に困難な状況のような種々
の物体を通して読み取ることができる。また、ＲＦタグは、注目に値する速度で
読み取ることもでき、大抵のケースにおいては１００ミリ秒未満内で応答する。An advantage of RFID systems is the contactless, non-line-of-sight capability of this technology. Tags can be read through a variety of objects such as snow, fog, ice, paint, dirt, and other visually and environmentally difficult situations where barcodes or other optical reading techniques are ineffective. RF tags can also be read at noticeable rates, and in most cases respond within less than 100 milliseconds.
【０００６】
ＲＦＩＤタグには、３つの主たるカテゴリがある。これらは、ビーム給電式受
動タグと、バッテリ給電式半受動タグと、能動タグとである。各々は、本質的に
異なった方法で動作する。There are three main categories of RFID tags. These are beam-fed passive tags, battery-fed semi-passive tags, and active tags. Each operates essentially differently.
【０００７】
ビーム給電式ＲＦＩＤタグは、受動デバイスと呼ばれることが多いが、その理
由はこのタグにビームが向けられた無線周波エネルギからその動作に必要なエネ
ルギを得るようになっているからである。このタグは、その電界を整流し、そし
てタグ自体の反射特性を変化させ、インターロゲータから見える反射率の変化を
生じさせる。バッテリ給電式半受動ＲＦＩＤタグは、それと同様に動作して、そ
のＲＦ横断面を変調することによりデルタをインターロゲータに反射して通信リ
ンクを出現させるようにする。ここで、バッテリは、このタグの動作電力のソー
スである。最後に、能動ＲＦタグにおいては、送信器を使用することによって、
バッテリにより給電されたそれ自身の無線周波エネルギを生成する。Beam-powered RFID tags are often referred to as passive devices because they derive the energy needed to operate from the radio frequency energy the beam is directed at. . The tag rectifies its electric field and changes the reflective properties of the tag itself, causing a change in the reflectivity seen by the interrogator. A battery-powered semi-passive RFID tag operates in a similar manner, modulating its RF cross-section to reflect the delta back to the interrogator to reveal the communication link. Here, the battery is the source of operating power for this tag. Finally, in active RF tags, by using a transmitter,
It produces its own radio frequency energy powered by a battery.
【０００８】
代表的なＲＦタグ・システム１０は、少なくとも１つのタグ１６と１つのイン
ターロゲータ１８とを含むことになる。このようなタグのための通信レンジは、
インターロゲータ１８およびＲＦタグ１６の送信電力にしたがって変動する。２
，４５０ＭＨｚで動作するバッテリ給電式タグは、これまでは、１０メートル未
満のレンジに制限されていた。しかし、十分な電力をもつデバイスでは、周波数
並びに環境の特性に依存して、２００メートルのレンジにまで達することができ
る。A typical RF tag system 10 will include at least one tag 16 and one interrogator 18. The communication range for such tags is
It varies according to the transmission power of the interrogator 18 and the RF tag 16. Two
Battery-powered tags operating at 450 MHz were previously limited to ranges less than 10 meters. However, for devices with sufficient power, the range of 200 meters can be reached, depending on the frequency as well as the characteristics of the environment.
【０００９】
従来のＲＦタグ・システムは、連続波の後方散乱を利用して、タグ１６からの
データをインターロゲータ１８へ通信する。詳細には、インターロゲータ１８は
、連続波の無線信号をタグ１６に送信し、そしてタグは、信号２０を、変調され
た後方散乱を使用して変調する。ここで、アンテナ２４の電気的特性は、変調さ
れた信号２２をインターロゲータ１８へ反射するこのタグからの変調用信号によ
って変更される。変調された信号２２は、タグ１６からの情報でエンコードされ
る。次に、インターロゲータ１８は、この変調された信号２２を復調し、そして
その情報をデコードする。Conventional RF tag systems utilize backscattering of continuous waves to communicate data from tags 16 to interrogator 18. In particular, the interrogator 18 sends a continuous wave radio signal to the tag 16 and the tag modulates the signal 20 using modulated backscatter. Here, the electrical properties of the antenna 24 are modified by the modulating signal from this tag which reflects the modulated signal 22 to the interrogator 18. The modulated signal 22 is encoded with the information from the tag 16. Interrogator 18 then demodulates this modulated signal 22 and decodes that information.
【００１０】
受動（バッテリなし）ＲＦタグを利用する従来の連続波後方散乱ＲＦタグ・シ
ステムは、タグ１６の内部回路に給電してインターロゲータ１８へ返送する信号
を変調するため、信号２０から十分な電力を必要とする。このことは、インター
ロゲータに近接（例えば３メートル未満）して位置付けられたタグに対しては成
功しているが、ある種の用途（例えば、１００メートル超）に対しては、これは
不十分なレンジとなることがある。したがって、変調された信号のためのより長
いレンジの通信のため、受信信号から十分な電力を生成できる受動ＲＦタグ・シ
ステムに対するニーズがある。A conventional continuous wave backscatter RF tag system that utilizes a passive (batteryless) RF tag modulates the signal from the signal 20 to power the internal circuitry of the tag 16 and return to the interrogator 18. Need enough power. This has been successful for tags positioned close to the interrogator (eg less than 3 meters), but for some applications (eg> 100 meters) this is not. It may be a sufficient range. Therefore, there is a need for a passive RF tag system that can generate sufficient power from the received signal for longer range communication for modulated signals.
【００１１】
発明の摘要
本発明は、遠隔通信システムを提供し、このシステムは、第１の信号と第２の
信号とを異なった周波数で受信し、また第３の信号を送信するように構成したア
ンテナと、前記第１信号から電源電圧を提供するように構成した電力回路と、前
記アンテナと前記電力回路に結合しており、前記電源電圧を使用して前記アンテ
ナによる送信のため前記第３信号を発生するように構成した識別回路と、から成
る。SUMMARY OF THE INVENTION The present invention provides a telecommunications system, the system configured to receive a first signal and a second signal at different frequencies and to transmit a third signal. An antenna, a power circuit configured to provide a power supply voltage from the first signal, and the antenna and the power circuit coupled to the third circuit for transmission by the antenna using the power supply voltage. An identification circuit configured to generate a signal.
【００１２】
本発明の別の形態によれば、前記アンテナは、第１および第２の信号を受信し
そして第３の信号を送信するための単一のアンテナを有するように構成したり、
あるいは前記第１信号を受信するための第１のアンテナと前記第２信号の受信と
前記第３信号の送信の両方を行うための第２のアンテナとを有するようにできる
。理想的には、前記第１信号は、前記第２および第３の信号の周波数よりも低い
周波数にある。According to another aspect of the invention, the antenna is configured to have a single antenna for receiving the first and second signals and transmitting the third signal,
Alternatively, it may have a first antenna for receiving the first signal and a second antenna for both receiving the second signal and transmitting the third signal. Ideally, the first signal is at a lower frequency than the frequencies of the second and third signals.
【００１３】
本発明の別の形態によれば、前記電力回路は、前記第１信号を整流して、ＤＣ
電流を供給するためのＤＣ電源電圧のような電源電圧にするように構成する。
本発明の別の形態によれば、前記アンテナは、放射光エネルギ、磁界、あるい
は無線周波信号のような電磁的信号のいずれかの形態にある第１の信号を受信す
るように構成する。According to another aspect of the present invention, the power circuit rectifies the first signal to generate a DC signal.
It is configured to have a power supply voltage such as a DC power supply voltage for supplying current. According to another aspect of the invention, the antenna is configured to receive a first signal in the form of either radiated light energy, a magnetic field, or an electromagnetic signal such as a radio frequency signal.
【００１４】
本発明の別の実施形態によれば、遠隔通信システムを提供し、このシステムは
、放射されたエネルギのソースと、第１のデータ信号を送信しそして第２のデー
タ信号を受信するように構成した送受信器と、前記放射されたエネルギを受けそ
して該放射されたエネルギを前記第１データ信号の受信および前記第２データ信
号の送信に使用する電源電圧に変換するトランスポンダと、から成る。好ましく
は、前記トランスポンダは、前記第１データ信号を前記第２データ信号に変換す
るように構成する。According to another embodiment of the present invention, there is provided a telecommunications system, the system transmitting a first data signal and receiving a second data signal with a source of radiated energy. And a transponder for receiving the radiated energy and converting the radiated energy into a power supply voltage used for receiving the first data signal and transmitting the second data signal. . Preferably, the transponder is arranged to convert the first data signal into the second data signal.
【００１５】
本発明の別の実施形態によれば、遠隔通信方法を提供し、この方法は、エネル
ギ信号を受信しそして該エネルギ信号を電源電圧に変換するステップと、前記エ
ネルギ信号の周波数とは異なった周波数で第１のデータ信号を受信するステップ
と、前記第１データ信号を、所定の変換法にしたがって変換して第２のデータ信
号にしそして該第２データ信号を送信するステップを含み、これら全ては、前記
エネルギ信号から変換した前記電源電圧を使用する。好ましくは、前記エネルギ
信号と前記第１データ信号は、同時に受信する。According to another embodiment of the present invention, there is provided a telecommunications method, the method comprising receiving an energy signal and converting the energy signal into a power supply voltage, and the frequency of the energy signal. Receiving a first data signal at a different frequency, converting the first data signal into a second data signal according to a predetermined conversion method, and transmitting the second data signal, All of these use the power supply voltage converted from the energy signal. Preferably, the energy signal and the first data signal are received simultaneously.
【００１６】
本発明の方法のさらに別の形態によれば、前記エネルギ信号は、整流によって
、ＤＣ電流を発生するＤＣ電源電圧に変換する。前記第１データ信号の変換は、
好ましくは、前記第１データ信号を所定の変調法にしたがって変調して前記第２
データ信号にすることにより実行する。According to yet another aspect of the method of the present invention, the energy signal is converted by rectification into a DC power supply voltage that produces a DC current. The conversion of the first data signal is
Preferably, the first data signal is modulated according to a predetermined modulation method to obtain the second data signal.
It is executed by making it a data signal.
【００１７】
以上から容易に理解されるように、本発明の開示する実施形態は、受動形ＲＦ
タグ・システムを提供し、このシステムは、受信信号からより大きな電源電圧を
抽出してより大きな送信レンジを実現する。通信距離におけるこの増加により、
大きな倉庫における在庫品、戦場における武器および動物の追跡および識別のよ
うなより広範な応用に対し、受動ＲＦタグの使用を可能にし、しかもこのような
タグのサイズおよびコストを上昇させずに行える。As will be readily appreciated from the foregoing, the disclosed embodiments of the present invention include passive RF.
A tag system is provided that extracts a larger supply voltage from the received signal to achieve a larger transmission range. Due to this increase in communication distance,
It allows the use of passive RF tags for a wider range of applications, such as tracking and identification of inventory in large warehouses, weapons and animals on the battlefield, without increasing the size and cost of such tags.
【００１８】
発明の詳細な説明
図２を参照すると、これには、本発明の１実施形態による遠隔通信システム２
６が示されている。遠隔通信システム２６は、エネルギ信号３０を送信するよう
に構成したエネルギ・ソース送信器２８と、第１のデータ信号３４を送信しそし
て第２のデータ信号３６を受信するように構成したインターロゲータ３２とを備
えている。詳細には、エネルギ・ソース送信器２８は、アンテナ３８を備え、こ
れは、第１の周波数でエネルギ信号を送信するように構成されている。インター
ロゲータ３２は、アンテナ４０を備え、これは、第１データ信号３４を第２の周
波数で送信し、そして第２データ信号３６を第２の周波数あるいは所望ならば第
３の周波数のいずれかで受信するように構成されている。[0018] With reference to the detailed illustration 2 of the present invention, including, telecommunication system 2 according to one embodiment of the present invention
6 is shown. Telecommunication system 26 includes an energy source transmitter 28 configured to transmit energy signal 30 and an interrogator configured to transmit first data signal 34 and receive second data signal 36. And 32. Specifically, the energy source transmitter 28 includes an antenna 38, which is configured to transmit an energy signal at a first frequency. The interrogator 32 comprises an antenna 40, which transmits a first data signal 34 at a second frequency and a second data signal 36 at either a second frequency or a third frequency if desired. Is configured to receive at.
【００１９】
遠隔通信システム２６の１実施形態においては、エネルギ・ソース２８とイン
ターロゲータ３２は、同じ場所あるいは異なった場所のいずれかで別個のコンポ
ーネントとすることができる。別の実施形態では、エネルギ・ソース２８とイン
ターロゲータ３２は、２つのアンテナをもつ単一の集積ユニットとして形成する
ことができる。さらに別の実施形態では、エネルギ・ソース２８は、壁電流(wal
l current)、または商用のラジオ局のような外部送信器からの無線周波信号、あ
るいはさらにセル電話が放出する信号のような寄生エネルギ・ソース（parasiti
c energy source）とすることができる。さらに別のエネルギ・ソースは、自然
または人工的なソースからの光エネルギとすることもできる。In one embodiment of telecommunications system 26, energy source 28 and interrogator 32 may be separate components, either at the same location or at different locations. In another embodiment, the energy source 28 and the interrogator 32 can be formed as a single integrated unit with two antennas. In yet another embodiment, the energy source 28 is a wall current (wal).
current source, or a radio frequency signal from an external transmitter such as a commercial radio station, or even a parasitic energy source such as a signal emitted by a cell phone.
c energy source). Still another energy source can be light energy from a natural or artificial source.
【００２０】
受信側においては、トランスポンダ４２を設け、これは、電力回路４４と、こ
の電力回路に結合した識別回路４６とを備えている。電力回路４４は、エネルギ
信号３０を受信するためアンテナ４８を有している。この電力回路は、そのエネ
ルギ信号を整流して電源電圧を識別回路４６に供給するように構成されている。
識別回路４６は、それ自身のアンテナ５０を有して、第１データ信号３４を受信
し、そしてこの信号は、識別回路４６内で第２データ信号３６に変換し、そして
この信号は、次に同じアンテナ５０を介して送信する。On the receiving side, a transponder 42 is provided, which comprises a power circuit 44 and an identification circuit 46 coupled to this power circuit. The power circuit 44 has an antenna 48 for receiving the energy signal 30. The power circuit is configured to rectify the energy signal and supply the power supply voltage to the identification circuit 46.
The identification circuit 46, with its own antenna 50, receives the first data signal 34 and converts this signal into a second data signal 36 in the identification circuit 46, which in turn Transmit via the same antenna 50.
【００２１】
インターロゲータとトランスポンダにはたった１つのアンテナを使用すると考
慮しているが、その各々は、１つより多いアンテナを有するようにできることは
理解されるべきである。図３を参照すると、これには、本発明により形成した別
の遠隔通信システム５２を示している。遠隔通信システム５２は、インターロゲ
ータ５４を備え、これは、第１データ信号５８を送信しそして第２データ信号６
０を受信するように構成している。さらに示しているのは、タグ６２の形態のト
ランスポンダであり、これは、アンテナ６４を有して第１データ信号５８を受信
し、そしてこの信号は、タグ６２によって第２データ信号６０に変換され、そし
てこの信号はアンテナ６４に送信される。アンテナ６４は、エネルギ・ソース６
８からのエネルギ信号６６を受けるようにも構成されている。タグ６２は、エネ
ルギ信号６６を整流して、タグ６２内の回路にＤＣ電流を供給するための電源電
圧にするように構成されている。この実施形態では、エネルギ・ソースは、イン
ターロゲータ５４の１つのコンポーネントとしたり、あるいは図２に示した実施
形態におけるように別個の送信器としたり、あるいは図２に関してさらに詳細に
上述した寄生エネルギ・ソースのような外部エネルギ・ソースとしたりすること
もできる。While considering using only one antenna for the interrogator and transponder, it should be understood that each of them may have more than one antenna. Referring to FIG. 3, there is shown another telecommunication system 52 formed in accordance with the present invention. Telecommunication system 52 comprises an interrogator 54, which transmits a first data signal 58 and a second data signal 6
It is configured to receive 0. Also shown is a transponder in the form of a tag 62, which has an antenna 64 to receive a first data signal 58, which is converted by the tag 62 into a second data signal 60. , And this signal is transmitted to antenna 64. The antenna 64 is the energy source 6
8 is also configured to receive the energy signal 66 from 8. Tag 62 is configured to rectify energy signal 66 into a power supply voltage for supplying DC current to the circuitry within tag 62. In this embodiment, the energy source may be one component of interrogator 54, or a separate transmitter as in the embodiment shown in FIG. 2, or the parasitic energy described above in more detail with respect to FIG. It can also be an external energy source such as a source.
【００２２】
図４は、図２に示した第１の実施形態の電力回路４４と識別回路４６をより詳
細に示す。電力回路４４は、エネルギ信号３０をアンテナ４８から受け、そして
それを第１および第２のダイオード７０，７２、並びに抵抗器７６とキャパシタ
７８とから成る共振並列ＲＣ回路７４とで整流する。電力回路４４の出力は、正
の電源電圧（Ｖ＋）である。この電源電圧（Ｖ＋）は、識別回路４６が受け、そ
してこの回路４６は、この場合ＲＦＩＤ特定用途向け集積回路（ＡＳＩＣ）８０
として示している。代表的なＡＳＩＣ８０の詳細は、図５に示しており、これは
、電源電圧（Ｖ＋）を受けるように構成した電力インターフェース８２を備えて
いる。電力は、電力インターフェース８２からメモり８４、制御回路８６および
変調／復調回路８８へ分配される。これら回路の構成は、当業者には知られてお
り、したがってここでは詳細には説明しない。FIG. 4 shows the power circuit 44 and identification circuit 46 of the first embodiment shown in FIG. 2 in more detail. The power circuit 44 receives the energy signal 30 from the antenna 48 and rectifies it with first and second diodes 70, 72 and a resonant parallel RC circuit 74 consisting of a resistor 76 and a capacitor 78. The output of the power circuit 44 is a positive power supply voltage (V +). This supply voltage (V +) is received by the identification circuit 46, which in this case is an RFID application specific integrated circuit (ASIC) 80.
Is shown as. Details of an exemplary ASIC 80 are shown in FIG. 5, which includes a power interface 82 configured to receive a power supply voltage (V +). Power is distributed from the power interface 82 to the memory 84, the control circuit 86 and the modulation / demodulation circuit 88. The construction of these circuits is known to those skilled in the art and will therefore not be described in detail here.
【００２３】
次に、図６を参照すると、これには、図３に示した単一アンテナ形タグ６２内
の回路の一部分の代表的な１例を示している。図６に示したように、アンテナ６
４は、エネルギ信号６６と第１データ信号５８とを受信する。アンテナ６４は、
第１周波数ｆ1で受信するエネルギ信号６６を吸収し、そして第２周波数ｆ2で受
信する第１データ信号５８に対しては反射性となるように構成している。図６に
示した実施形態においては、このアンテナは、ＦＥＴトランジスタ９０によって
変調し、そしてこのトランジスタは、その制御ゲートでデータ信号（データ）に
より制御する。整流器回路９２は、この図に示しており、これは、電源電圧（Ｖ
＋）を発生するため図４に示した回路７４と同一の構成を有している。第２デー
タ信号６０は、アンテナ６４による送信のため、ＦＥＴトランジスタ９０が発生
する。Referring now to FIG. 6, there is shown a representative example of a portion of the circuitry within the single antenna tag 62 shown in FIG. As shown in FIG. 6, the antenna 6
4 receives the energy signal 66 and the first data signal 58. The antenna 64 is
It is configured to absorb the energy signal 66 received at the first frequency f 1 and be reflective to the first data signal 58 received at the second frequency f 2 . In the embodiment shown in FIG. 6, this antenna is modulated by a FET transistor 90, and this transistor is controlled by a data signal (data) at its control gate. The rectifier circuit 92 is shown in this figure, which is the power supply voltage (V
+), It has the same configuration as the circuit 74 shown in FIG. The second data signal 60 is generated by the FET transistor 90 because it is transmitted by the antenna 64.
【００２４】
図示したすべての実施形態においては、当業者に知られた適当なアンテナを使
用することができる。例えば、アンテナは、１／４波長ダイポール・アンテナと
することができ、これは、第１データ信号５８を受信しそして第２データ信号６
０を後方散乱するため、１／４λのデルタｆ2を提供する。In all illustrated embodiments, any suitable antenna known to those skilled in the art may be used. For example, the antenna may be a quarter wave dipole antenna, which receives the first data signal 58 and the second data signal 6
Backscattering 0 provides a delta f 2 of 1 / 4λ.
【００２５】
使用においては、本システムは、好ましくは、４２０ＭＨｚのような低い周波
数で、もしくは法規により許可された周波数で電力信号を送信することになる。
第１および第２のデータ信号は、同じく法規により許可された２４５０ＭＨｚあ
るいは５８００ＭＨｚのようなそれより高い周波数で送信する。しかし、当業者
に知られた他の周波数を使用することもできる。例えば、米国のＦＣＣのような
ある国の法規では、予め定めた条件の下で、より高い周波数でより高い電力の送
信を許容している。したがって、エネルギ信号は、データ信号よりも高い周波数
におけるものとすることができる。In use, the system will preferably transmit power signals at low frequencies such as 420 MHz or at frequencies permitted by law.
The first and second data signals transmit at higher frequencies, such as 2450 MHz or 5800 MHz, also permitted by law. However, other frequencies known to those skilled in the art can be used. For example, some national legislation, such as the US FCC, allows transmission of higher power at higher frequencies under predetermined conditions. Therefore, the energy signal may be at a higher frequency than the data signal.
【００２６】
以上、本発明の上記の開示した実施形態は、１つまたはそれ以上のインターロ
ゲーション・ユニットとのより長い通信距離を実現するため、受動ＲＦタグに対
し増強した電源電圧を提供する。この受信エネルギ信号は、インターロゲーショ
ン・ユニットから送信したり、あるいはエネルギは、近くのラジオ局あるいは太
陽光のような既存のソースから取り出すこともでき、これによって、ＲＦタグの
サイズおよびコストを最小に保ちながら、そのレンジおよびその有用さを向上さ
せることができる。Thus, the above disclosed embodiments of the present invention provide an enhanced power supply voltage for passive RF tags to achieve longer communication distances with one or more interrogation units. . This received energy signal can be transmitted from an interrogation unit, or the energy can be taken from an existing source such as a nearby radio station or sunlight, which minimizes RF tag size and cost. While maintaining the range and its usefulness.
【００２７】
結び
以上から理解されるように、本発明の特定の実施形態について例示のための説
明したが、本発明の要旨および範囲から逸脱せずに種々の変更を行うことができ
る。したがって、本発明は、添付の特許請求の範囲の記載並びにその均等のもの
による以外、限定されるものではない。[0027] As understood from the knot has been described for illustrative specific embodiments of the present invention, it is possible to make various changes without departing from the spirit and scope of the present invention. Therefore, the invention is not to be limited except by the recitation of the appended claims and equivalents thereof.
【図１】 図１は、既存のＲＦタグ・システムの回路図。[Figure 1] FIG. 1 is a circuit diagram of an existing RF tag system.
【図２】 図２は、本発明にしたがって形成した遠隔通信システムの回路図。[Fig. 2] FIG. 2 is a circuit diagram of a telecommunications system formed in accordance with the present invention.
【図３】
図３は、本発明の別の実施形態にしたがって形成した遠隔通信システムの回路
図。FIG. 3 is a circuit diagram of a telecommunications system formed in accordance with another embodiment of the present invention.
【図４】 図４は、図２のタグのより詳細な回路図。[Figure 4] FIG. 4 is a more detailed circuit diagram of the tag of FIG.
【図５】 図５は、図４のタグの識別回路のブロック図。[Figure 5] FIG. 5 is a block diagram of the tag identification circuit of FIG. 4.
【図６】 図６は、図３において示した実施形態の電力回路のより詳細な回路図。[Figure 6] FIG. 6 is a more detailed circuit diagram of the power circuit of the embodiment shown in FIG. 3.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｂ 7/26 Ｈ０４Ｂ 7/26 Ｌ Ｍ (81)指定国 ＥＰ(ＡＴ，ＢＥ，ＣＨ，ＣＹ， ＤＥ，ＤＫ，ＥＳ，ＦＩ，ＦＲ，ＧＢ，ＧＲ，ＩＥ，Ｉ Ｔ，ＬＵ，ＭＣ，ＮＬ，ＰＴ，ＳＥ，ＴＲ)，ＯＡ(ＢＦ ，ＢＪ，ＣＦ，ＣＧ，ＣＩ，ＣＭ，ＧＡ，ＧＮ，ＧＷ， ＭＬ，ＭＲ，ＮＥ，ＳＮ，ＴＤ，ＴＧ)，ＡＰ(ＧＨ，Ｇ Ｍ，ＫＥ，ＬＳ，ＭＷ，ＭＺ，ＳＤ，ＳＬ，ＳＺ，ＴＺ ，ＵＧ，ＺＷ)，ＥＡ(ＡＭ，ＡＺ，ＢＹ，ＫＧ，ＫＺ， ＭＤ，ＲＵ，ＴＪ，ＴＭ)，ＡＥ，ＡＧ，ＡＬ，ＡＭ， ＡＴ，ＡＵ，ＡＺ，ＢＡ，ＢＢ，ＢＧ，ＢＲ，ＢＹ，Ｂ Ｚ，ＣＡ，ＣＨ，ＣＮ，ＣＯ，ＣＲ，ＣＵ，ＣＺ，ＤＥ ，ＤＫ，ＤＭ，ＤＺ，ＥＥ，ＥＳ，ＦＩ，ＧＢ，ＧＤ， ＧＥ，ＧＨ，ＧＭ，ＨＲ，ＨＵ，ＩＤ，ＩＬ，ＩＮ，Ｉ Ｓ，ＪＰ，ＫＥ，ＫＧ，ＫＰ，ＫＲ，ＫＺ，ＬＣ，ＬＫ ，ＬＲ，ＬＳ，ＬＴ，ＬＵ，ＬＶ，ＭＡ，ＭＤ，ＭＧ， ＭＫ，ＭＮ，ＭＷ，ＭＸ，ＭＺ，ＮＯ，ＮＺ，ＰＬ，Ｐ Ｔ，ＲＯ，ＲＵ，ＳＤ，ＳＥ，ＳＧ，ＳＩ，ＳＫ，ＳＬ ，ＴＪ，ＴＭ，ＴＲ，ＴＴ，ＴＺ，ＵＡ，ＵＧ，ＵＺ， ＶＮ，ＹＵ，ＺＡ，ＺＷ (71)出願人 Ｐａｃｉｆｉｃ Ｎｏｒｔｈｗｅｓｔ Ｄ ｉｖｉｓｉｏｎ， Ｉｎｔｅｌｌｅｃｔｕ ａｌ Ｐｒｏｐｅｒｔｙ Ｓｅｒｖｉｃｅ ｓ， Ｐ．Ｏ． Ｂｏｘ 999， Ｒｉｃ ｈｌａｎｄ， ＷＡ 99352 Ｕ．Ｓ．Ａ． (72)発明者 ギルバート，ロナルド・ダブリュー アメリカ合衆国ワシントン州99320，ベン トン・シティ，ノース・デモス・ロード 65105 (72)発明者 アンダーソン，ゴードン・エイ アメリカ合衆国ワシントン州99320，ベン トン・シティ，クリストファー・レーン 1104 (72)発明者 スティール・ケリー・ディー アメリカ合衆国ワシントン州99336，ケネ ウィック，ノース・ハートフォード 610 (72)発明者 カレンダー，カーティス・リー アメリカ合衆国ワシントン州99352，リッ チランド，カントリー・リッジ・ドライブ 1110 Ｆターム(参考） 5B035 BB09 CA12 CA23 5B058 CA15 KA40 5K011 BA03 DA01 DA02 DA29 JA01 5K012 AA01 AB05 AC07 AC08 AC10 AE13 BA03 5K067 AA21 AA42 BB02 BB21 EE02 EE12 FF19 KK03 KK05 【要約の続き】 または人工の光からのものとすることができる。─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H04B 7/26 H04B 7/26 LM (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW), EA (AM, AZ, BY, KG) , KZ, MD, RU, TJ, TM), AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO , CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD , SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW (71) Applicant Pacific Northwest Division, Intellectual Property Services, P. O. Box 999, Richland, WA 99352 U. S. A. (72) Inventor Gilbert, Ronald W. Washington, United States 99320, Benton City, North Demos Road 65105 (72) Inventor Anderson, Gordon A. United States, Washington 99320, Benton City, Christopher Lane 1104 (72) Inventor Steel Kerry Dee, Washington, USA 99336, Kennewick, North Hartford 610 (72) Inventor Calendar, Curtis Lee, Washington, USA 99352, Richland, Country Ridge Drive 1110 F Term ( Reference) 5B035 BB09 CA12 CA23 5B058 CA15 KA40 5K011 BA03 DA01 DA02 DA29 JA01 5K012 AA01 AB05 AC07 AC08 AC10 AE13 BA03 5K067 AA21 AA42 BB02 BB21 EE02 EE12 FF19 KK03 KK05 [Continued light or artificial light] .
Claims (33)
第３の信号を送信するように構成したアンテナと、 該アンテナに結合しており、前記第１信号から電源電圧を提供するように構成
した電力回路と、 前記アンテナと前記電力回路に結合しており、前記電源電圧を使用して前記第
３信号を発生するように構成した識別回路と、 から成る遠隔通信デバイス。1. A telecommunications device, comprising: an antenna configured to receive a first signal, a second signal having a frequency different from the first signal, and transmit a third signal. A power circuit coupled to the antenna and configured to provide a power supply voltage from the first signal; and a power circuit coupled to the antenna and the power circuit that uses the power supply voltage to power the third circuit. A telecommunications device comprising an identification circuit configured to generate a signal.
されること、を特徴とする遠隔通信デバイス。2. The device according to claim 1, wherein the first and second signals are received simultaneously.
ＤＣ電源電圧にするように構成した整流器回路を含むこと、を特徴とする遠隔通
信デバイス。3. The device of claim 2, wherein the power circuit includes a rectifier circuit configured to rectify the first signal to a DC power supply voltage.
ことによって前記第３信号を発生するように構成したこと、を特徴とする遠隔通
信デバイス。4. The telecommunication device according to claim 3, wherein the identification circuit is arranged to generate the third signal by modulating the second signal.
低いこと、を特徴とする遠隔通信デバイス。5. The telecommunications device of claim 4, wherein the first frequency is lower than the second frequency.
ための第１のアンテナと、前記第２信号を受信しまた前記第３信号を送信するた
めの第２のアンテナと、から成ること、を特徴とする遠隔通信デバイス。6. The device of claim 4, wherein the antenna is a first antenna for receiving the first signal and a first antenna for receiving the second signal and transmitting the third signal. A telecommunications device comprising two antennas.
周波数の信号であること、を特徴とする遠隔通信デバイス。7. The device according to claim 4, wherein the first, second and third signals are radio frequency signals.
源電圧に変換し、 また、前記電源電圧を使用して第２の信号を受信し、そして該第２信号の受信
に応答して第３の信号を送信するように構成したトランスポンダ、 を含み、前記第３信号が、前記第１信号とは異なった第２の周波数で送信するこ
と、 を特徴とする遠隔通信デバイス。8. A telecommunications device for receiving an energy signal transmitted at a first frequency and converting the energy signal into a power supply voltage and using the power supply voltage for a second signal. And a transponder configured to transmit a third signal in response to receiving the second signal, the third signal at a second frequency different from the first signal. Transmitting, characterized by a telecommunications device.
よって前記第３信号を送信するように構成したこと、を特徴とする遠隔通信デバ
イス。9. The device of claim 8, wherein the transponder is configured to transmit the third signal by continuous wave backscattering.
信および前記第３信号の送信において使用するため、前記エネルギ信号をＤＣ電
源電圧に整流するように構成したこと、を特徴とする遠隔通信デバイス。10. The device of claim 8, wherein the transponder is configured to rectify the energy signal to a DC power supply voltage for use in receiving the second signal and transmitting the third signal. , A telecommunication device characterized by:
介して、前記エネルギ信号と前記第２信号とを受信しまた前記第３信号を送信す
るように構成したこと、を特徴とする遠隔通信デバイス。11. The device of claim 8, wherein the transponder is configured to receive the energy signal and the second signal and transmit the third signal via a single antenna. , A telecommunication device characterized by:
介して前記エネルギ信号を受信し、第２のアンテナを介して前記第２信号を受信
し前記第３信号を送信するように構成したこと、を特徴とする遠隔通信デバイス
。12. The device of claim 8, wherein the transponder receives the energy signal via a first antenna, the second signal via a second antenna, and the third signal. A telecommunications device configured to transmit.
で前記エネルギ信号を受信し、そして前記光エネルギを電源電圧に変換するよう
に構成したこと、を特徴とする遠隔通信デバイス。13. The device of claim 8, wherein the transponder is configured to receive the energy signal in the form of light energy and convert the light energy into a power supply voltage. Communication device.
エネルギ信号を受け、そして前記受けた磁界をＤＣ電源電圧に変換するように構
成したこと、を特徴とする遠隔通信デバイス。14. The device of claim 8, wherein the transponder is configured to receive the energy signal in the form of a magnetic field and convert the received magnetic field into a DC power supply voltage. Communication device.
の形態の前記エネルギ信号を受け、そして前記無線周波をＤＣ電源電圧に変換す
るように構成したこと、を特徴とする遠隔通信デバイス。15. The device of claim 8, wherein the transponder is configured to receive the energy signal in the form of a radio frequency signal and convert the radio frequency to a DC power supply voltage. Telecommunications device.
送受信器と、 該送受信器から離れており、前記放射されたエネルギを受けそして該放射され
たエネルギを電源電圧に変換し、そしてまた前記電源電圧を使用して、前記第１
データ信号を受信しそして該第１データ信号に応答して前記第２データ信号を送
信するように構成したトランスポンダと、 から成る遠隔通信システム。16. A telecommunications system comprising a source of radiated energy, a transceiver configured to transmit a first data signal and receive a second data signal, remote from the transceiver. Receiving the radiated energy and converting the radiated energy into a power supply voltage and also using the power supply voltage, the first
A transponder configured to receive a data signal and transmit the second data signal in response to the first data signal.
の送信器から成り、該送信器は、前記第１および第２のデータ信号の周波数とは
異なった第１の周波数で前記放射エネルギを送信するように構成したこと、を特
徴とする遠隔通信システム。17. The system of claim 16, wherein the source of radiant energy comprises a radio frequency transmitter, the transmitter having a first frequency different from the frequencies of the first and second data signals. A telecommunications system configured to transmit the radiant energy at a frequency of.
成り、該整流器回路は、前記放射エネルギを送信する前記無線周波信号を受信し
そしてこれをＤＣ電流を含む電源電圧に変換するように構成したこと、を特徴と
する遠隔通信システム。18. The system according to claim 17, wherein said transponder comprises a rectifier circuit, said rectifier circuit receiving said radio frequency signal transmitting said radiant energy and directing it to a supply voltage containing a DC current. A telecommunications system characterized in that it is configured to convert.
信号を変調することによって、前記第１データ信号を前記第２データ信号に変換
するように構成したこと、を特徴とする遠隔通信システム。19. The system of claim 18, wherein the transponder is configured to convert the first data signal to the second data signal by modulating the first data signal. And a telecommunications system.
ギを有する前記無線周波信号を受信するための第１のアンテナと、前記第１およ
び第２のデータ信号をそれぞれ受信および送信するための第２のアンテナと、を
含むこと、を特徴とする遠隔通信システム。20. The system of claim 19, wherein the transponder receives a first antenna for receiving the radio frequency signal having the radiant energy, and receives the first and second data signals, respectively. A second antenna for transmitting, and a telecommunications system.
ギを含む前記無線周波信号とそして前記第１データ信号との両方を受信し、そし
て前記第２データ信号を送信するように構成した単一のアンテナを有するように
構成したこと、を特徴とする遠隔通信システム。21. The system of claim 20, wherein the transponder receives both the radio frequency signal containing the radiant energy and the first data signal and transmits the second data signal. And a single antenna configured as described above.
めの前記無線周波送信器を含み、さらに、前記第１データ信号は、前記無線周波
送信器が送信する前記放射エネルギの周波数よりも高い周波数で送信するインタ
ーロゲーション信号を含むこと、を特徴とする遠隔通信システム。22. The system of claim 19, wherein the transceiver includes the radio frequency transmitter for the radiant energy, and the first data signal is transmitted by the radio frequency transmitter. A telecommunications system comprising an interrogation signal transmitting at a frequency higher than the frequency of the radiant energy.
の周波数で第１データ信号を送信するように構成した送受信器と、 前記エネルギ信号を受信しそして該エネルギ信号を電源電圧に変換し、また前
記第１データ信号を受信しそして該第１データ信号を第２データ信号に変換し、
また前記第２データ信号を前記送受信器に送信するように構成したトランスポン
ダと、 から成る遠隔通信システム。23. A telecommunications system comprising a second frequency signal transmitting an energy signal at a first frequency and different from the first frequency.
A transceiver configured to transmit a first data signal at a frequency of, and receiving the energy signal and converting the energy signal into a power supply voltage and receiving the first data signal and the first data signal To a second data signal,
And a transponder configured to transmit the second data signal to the transceiver.
を介して前記エネルギ信号を受信し、そして第２のアンテナを介して前記第１デ
ータ信号を受信しまた前記第２データ信号を送信するように構成したこと、を特
徴とする遠隔通信システム。24. The system of claim 23, wherein the transponder receives the energy signal via a first antenna and the first data signal via a second antenna, and A telecommunications system characterized by being configured to transmit two data signals.
を介して、前記エネルギ信号および前記第１データ信号を受信し、そして前記第
２データ信号を送信するように構成したこと、を特徴とする遠隔通信システム。25. The system of claim 23, wherein the transponder is configured to receive the energy signal and the first data signal and transmit the second data signal via a single antenna. What has been done is a telecommunications system.
信号を受信しそして前記第２データ信号に変換するのに使用するＤＣ電源電圧に
、前記エネルギ信号を整流するように構成したこと、を特徴とする遠隔通信シス
テム。26. The system of claim 23, wherein the transponder rectifies the energy signal to a DC power supply voltage used to receive the first data signal and convert the second data signal. A telecommunications system characterized by being configured in.
によって送信されること、を特徴とする遠隔通信システム。27. The telecommunications system of claim 23, wherein the second data signal is transmitted by continuous wave backscattering.
、 前記エネルギ信号の周波数とは異なった周波数で第１のデータ信号を受信する
ステップと、 前記第１データ信号を、所定の変換法にしたがって変換して第２のデータ信号
にし、そして該第２データ信号を前記電源電圧を使用して送信するステップと、 から成る遠隔通信方法。28. A telecommunications method, the steps of receiving an energy signal and converting the energy signal into a power supply voltage, and receiving a first data signal at a frequency different from the frequency of the energy signal. And a step of converting the first data signal into a second data signal according to a predetermined conversion method, and transmitting the second data signal using the power supply voltage.
は、同時に受信されること、を特徴とする遠隔通信方法。29. The method of claim 28, wherein the energy signal and the first data signal are received simultaneously.
換するステップは、前記第１データ信号を所定の変調法にしたがって変調するこ
とを含むこと、を特徴とする遠隔通信方法。30. The method of claim 28, wherein converting the first data signal to a second data signal comprises modulating the first data signal according to a predetermined modulation method. Characteristic telecommunication method.
して送信することを含み、前記のエネルギ信号を受信するステップは、前記無線
周波搬送波を整流して前記電源電圧を抽出することを含むこと、を特徴とする遠
隔通信方法。31. The method of claim 28, comprising first transmitting the energy signal as a radio frequency carrier, the step of receiving the energy signal rectifying the radio frequency carrier to provide the energy signal. A telecommunications method comprising extracting a power supply voltage.
受信し、第２のアンテナを介して、前記第１データ信号を受信し、前記第２デー
タ信号を送信すること、を特徴とする遠隔通信方法。32. The method of claim 31, wherein the energy signal is received via a first antenna, the first data signal is received via a second antenna, and the second data signal is received. A telecommunications method characterized by transmitting.
と前記第１データ信号を受信し、前記第２データ信号を送信すること、を特徴と
する遠隔通信方法。33. The method of claim 28, wherein the energy signal and the first data signal are received and the second data signal is transmitted via a single antenna. Method.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58900100A | 2000-06-06 | 2000-06-06 | |
| US09/589,001 | 2000-06-06 | ||
| PCT/US2001/017769 WO2001095242A2 (en) | 2000-06-06 | 2001-05-31 | Remote communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003536302A true JP2003536302A (en) | 2003-12-02 |
Family
ID=24356196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002502707A Pending JP2003536302A (en) | 2000-06-06 | 2001-05-31 | Telecommunications systems and methods |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1290618A2 (en) |
| JP (1) | JP2003536302A (en) |
| AU (1) | AU2001275117A1 (en) |
| WO (1) | WO2001095242A2 (en) |
Cited By (76)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP2009100276A (en) * | 2007-10-17 | 2009-05-07 | Aruze Corp | Wireless communication tag and wireless communication system |
| JP2009171706A (en) * | 2008-01-15 | 2009-07-30 | Yamatake Corp | Actuator |
| JP2009540752A (en) * | 2006-06-15 | 2009-11-19 | アルカテル−ルーセント ユーエスエー インコーポレーテッド | Modulation of carrier radio signals by mobile terminals in wireless communication networks |
| JP2010507987A (en) * | 2006-10-27 | 2010-03-11 | ソニー株式会社 | Radio frequency identification system |
| JP4671001B2 (en) * | 2008-07-04 | 2011-04-13 | 株式会社村田製作所 | Wireless IC device |
| US7967216B2 (en) | 2008-05-22 | 2011-06-28 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| 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 |
| 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 |
| US9004360B2 (en) | 2009-06-10 | 2015-04-14 | Infineon Technologies Ag | Contactless communication via a plurality of interfaces |
| US9024725B2 (en) | 2009-11-04 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Communication terminal and information processing system |
| US9024837B2 (en) | 2010-03-31 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Antenna and wireless communication 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 |
| US9165239B2 (en) | 2006-04-26 | 2015-10-20 | Murata Manufacturing Co., Ltd. | Electromagnetic-coupling-module-attached article |
| US9166291B2 (en) | 2010-10-12 | 2015-10-20 | Murata Manufacturing Co., Ltd. | Antenna device and communication terminal apparatus |
| 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 |
| 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 |
| 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 |
| 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 |
| US9543642B2 (en) | 2011-09-09 | 2017-01-10 | Murata Manufacturing Co., Ltd. | Antenna device and wireless device |
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| 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 |
| JPWO2021065055A1 (en) * | 2019-09-30 | 2021-10-28 | 株式会社村田製作所 | RFID modules, RFID tags and articles with RFID tags |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI114585B (en) | 2000-06-09 | 2004-11-15 | Nokia Corp | Transfer cable in multilayer structures |
| DE10221451A1 (en) * | 2002-05-15 | 2003-11-27 | Philips Intellectual Property | Non contact data communication between transponder built in form of integrated circuit chip cards and using an ac field effect fro field generator |
| US6707376B1 (en) * | 2002-08-09 | 2004-03-16 | Sensormatic Electronics Corporation | Pulsed power method for increased read range for a radio frequency identification reader |
| GB2395613B (en) | 2002-11-21 | 2006-09-06 | Hewlett Packard Co | Memory tag,read/write device and method of operating a memory tag |
| US7088145B2 (en) * | 2002-12-23 | 2006-08-08 | 3M Innovative Properties Company | AC powered logic circuitry |
| US6985787B2 (en) * | 2002-12-31 | 2006-01-10 | Tokyo Electron Limited | Method and apparatus for monitoring parts in a material processing system |
| EP1545069A1 (en) * | 2003-12-19 | 2005-06-22 | Sony International (Europe) GmbH | Remote polling and control system |
| WO2005098455A1 (en) * | 2004-04-07 | 2005-10-20 | Tecan Trading Ag | Device and method for identifying, locating and tracking objects on laboratory equipment |
| US7154396B2 (en) * | 2004-12-30 | 2006-12-26 | Nokia Corporation | Ultra wideband radio frequency identification techniques |
| EP1894147B1 (en) * | 2005-05-19 | 2015-10-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and wireless communication system using the same |
| CN101416201B (en) | 2006-05-15 | 2012-05-09 | 国际商业机器公司 | Method and systems for localizing objects using passive RFID tags |
| NL1031811C2 (en) * | 2006-05-15 | 2007-11-16 | Nedap Nv | Self-scanning wireless and battery-less shop trolley or container has energy supply effected with unmodulated magnetic field put into action by fixed transmitter |
| DE602006006163D1 (en) * | 2006-06-02 | 2009-05-20 | Em Microelectronic Marin Sa | Electronic identification device or transponder fitted with two antennas tuned to different frequencies |
| WO2007144216A1 (en) | 2006-06-14 | 2007-12-21 | International Business Machines Corporation | A method and system for reading a transponder |
| GB2456055A (en) * | 2006-11-27 | 2009-07-08 | Authix Technologies Ltd | Product authentication using bi-directional communication between a mobile phone and a tag |
| US20080136635A1 (en) * | 2006-12-08 | 2008-06-12 | Symbol Technologies, Inc. | Low power rfid reader that gives visibility to passive tags as active tags using low power 802.11 |
| GB201215213D0 (en) * | 2012-08-27 | 2012-10-10 | S3 Id Ltd | Tracking systems and components therefor |
| CN108052848A (en) * | 2013-09-25 | 2018-05-18 | 湖南湘讯企业管理有限公司 | A kind of device combination for promoting radio frequency identification signal transmission range |
| CN105095928A (en) * | 2014-05-23 | 2015-11-25 | 中兴通讯股份有限公司 | Passive RFID tag, RF read-write head, and RFID system |
| US10645556B2 (en) | 2015-12-17 | 2020-05-05 | Airbus Operations Gmbh | Wireless data transmitting device and method for wireless data transmission |
| EP3493097B1 (en) | 2017-11-29 | 2021-03-24 | ams AG | Method for supplying energy wirelessly by means of radio frequency identification, rfid, and rfid system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6481086A (en) * | 1987-09-22 | 1989-03-27 | Hitachi Maxell | Non-contact type magnetic coupling transmitting and receiving system |
| JPH07154312A (en) * | 1993-11-26 | 1995-06-16 | Matsushita Electric Ind Co Ltd | Radio frequency code identifying method |
| JPH0981701A (en) * | 1995-09-19 | 1997-03-28 | Toshiba Corp | Noncontact type information recording medium and noncontact type information transmitting method |
| JPH09321652A (en) * | 1996-05-27 | 1997-12-12 | Denso Corp | Radio communication equipment |
| JP2000078055A (en) * | 1998-07-21 | 2000-03-14 | Daimlerchrysler Ag | Transponder equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH663287A5 (en) * | 1984-05-03 | 1987-11-30 | Landis & Gyr Ag | FACILITIES WITH CONTACTLESS INFORMATION TRANSFER BETWEEN AN IDENTIFICATOR AND AN IDENTIFICANT. |
| EP0309201B1 (en) * | 1987-09-22 | 1993-05-26 | Hitachi Maxell Ltd. | Method and system of communication for a non-contact ic card |
| US5457447A (en) * | 1993-03-31 | 1995-10-10 | Motorola, Inc. | Portable power source and RF tag utilizing same |
-
2001
- 2001-05-31 EP EP01941791A patent/EP1290618A2/en not_active Withdrawn
- 2001-05-31 AU AU2001275117A patent/AU2001275117A1/en not_active Abandoned
- 2001-05-31 WO PCT/US2001/017769 patent/WO2001095242A2/en not_active Application Discontinuation
- 2001-05-31 JP JP2002502707A patent/JP2003536302A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6481086A (en) * | 1987-09-22 | 1989-03-27 | Hitachi Maxell | Non-contact type magnetic coupling transmitting and receiving system |
| JPH07154312A (en) * | 1993-11-26 | 1995-06-16 | Matsushita Electric Ind Co Ltd | Radio frequency code identifying method |
| JPH0981701A (en) * | 1995-09-19 | 1997-03-28 | Toshiba Corp | Noncontact type information recording medium and noncontact type information transmitting method |
| JPH09321652A (en) * | 1996-05-27 | 1997-12-12 | Denso Corp | Radio communication equipment |
| JP2000078055A (en) * | 1998-07-21 | 2000-03-14 | Daimlerchrysler Ag | Transponder equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2001275117A1 (en) | 2001-12-17 |
| WO2001095242A3 (en) | 2002-04-11 |
| EP1290618A2 (en) | 2003-03-12 |
| WO2001095242A2 (en) | 2001-12-13 |
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