JP2010284065A - Power/signal transmission module, noncontact charging module, and noncontact charging and signal transmission systems - Google Patents

Power/signal transmission module, noncontact charging module, and noncontact charging and signal transmission systems Download PDF

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JP2010284065A
JP2010284065A JP2009137519A JP2009137519A JP2010284065A JP 2010284065 A JP2010284065 A JP 2010284065A JP 2009137519 A JP2009137519 A JP 2009137519A JP 2009137519 A JP2009137519 A JP 2009137519A JP 2010284065 A JP2010284065 A JP 2010284065A
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power
signal transmission
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Yuji Ono
Naoki Wakao
裕司 小野
直樹 若生
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Nec Tokin Corp
Necトーキン株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances
    • Y02B40/90Energy efficient batteries, ultracapacitors, supercapacitors or double-layer capacitors charging or discharging systems or methods specially adapted for portable applications

Abstract

<P>PROBLEM TO BE SOLVED: To provide noncontact charging and signal transmission systems which save a space, charge a corresponding apparatus only, and obtain charging and transmission at the same time. <P>SOLUTION: The noncontact charging and signal transmission systems 10 include a power/signal transmission module 11 for portable terminals, and the like, which is provided with functions for transmitting electric power, sending and receiving signals, and processing information, and a noncontact charging module 21 for chargers, and the like, and are structured to mutually transmit electric power and send and receive signals in a noncontact manner by the electromagnetic induction. In the power/signal transmission module 11, a first power control circuit 13 for controlling the charge of a secondary battery 12 and a first signal control/information processing circuit 14 for controlling the signal transmission and reception are connected to a first coil 16 via a first separation and connection circuit 15, having the functions of separating the power transmission from and connecting it to the signal transmission and reception. In the noncontact charging module 21; a second power control circuit 23 for controlling an electric power from a power source section 22; and a second signal control/information processing circuit 24 are connected to a second coil 26 via a second separation and connection circuit 25. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、無線データ通信機能を有する携帯機器において、無線通信に用いるコイルを共用して、非接触充電を行う電力・信号伝送モジュール、非接触充電モジュールならびに非接触充電および信号伝送システムに関する。 The present invention provides a portable device having a wireless data communication function, share the coils to be used for wireless communication, power and signal transmission module for contactless charging, relates to a non-contact charging module and non-contact charging and the signal transmission system.

フェリカ(登録商標)などのRFID機能を搭載した携帯電話が広く普及しており、また、主に数百kHz帯において電磁誘導方式を利用した携帯機器などの非接触充電システムが従来技術として知られている。 Felica (registered trademark) and mobile phones become widespread equipped with RFID function such as addition, non-contact charging system such as a portable device using the electromagnetic induction method in a main hundreds kHz band is known as the prior art ing.

非接触充電システムは、被充電対象となる携帯機器などに内蔵されている二次電池を充電する目的などに使用されており、二次電池の状態に応じて適正に充電を実施するために、二次電池の情報を一次側すなわち充電器側にフィードバックする技術が用いられている。 Non-contact charging system is used for such purpose of charging the secondary battery built in such portable equipment to be the subject of charging, in order to implement the proper charging in accordance with the state of the secondary battery, Feedback techniques are used on the primary side, that the charger-side information of the secondary battery.

例えば、特許文献1では、非接触式充電機器において、負荷となる二次電池の状態による一次側電流を所定の閾値と比較し、これを二次側からの信号とみなして電池の充電制御を行っている。 For example, Patent Document 1, in the non-contact type charging device, a primary current according to the state of a secondary battery as a load with a predetermined threshold value, this is regarded as a signal from the secondary side charging control of the battery to Is going. この例のように、非接触充電における充電制御信号は一般的には通信ではなく二次側の負荷変動情報を用いている。 As in this example, the charge control signal in the non-contact charging is generally uses the load fluctuation information of the secondary side rather than the communication.

また、特許文献2では、携帯端末や電子時計などの携帯電子機器において、通常の動作時および充電時でアラームなどの機能の告知方法を変える手段を用いているものであって、充電とデータ通信とは時間的に分離されている。 In Patent Document 2, the portable electronic device such as a mobile terminal or an electronic timepiece, there is that using the means for changing the notification method features such as alarm during normal operation and during charging, charging and data communication They are separated in time from.

また、特許文献3では、携帯端末や電子時計などの携帯電子機器において、一次側による送信で二次側に信号が誘起された状態でコイルの抵抗負荷を変動させることで低消費電力化でき、その結果二次側の負担を軽減している。 In Patent Document 3, the portable electronic device such as a mobile terminal or an electronic timepiece, can reduce power consumption by varying the resistive load of the coil in a state in which the signal on the secondary side transmission by the primary side is induced, and to reduce the results secondary side burden.

特開2001−275266号公報 JP 2001-275266 JP 特開2000−270486号公報 JP 2000-270486 JP 特開平11−274989号公報 JP 11-274989 discloses

しかしながら、従来技術において、例えば電磁誘導による無線通信と非接触電力伝送の機能を合わせ持つ機器を実現するためには、RFID機能とそのための第1のコイル、充電機能とそのための第2のコイルをそれぞれ搭載することが考えられるが、第1のコイルは13.56MHz帯に対応したサイズおよびターン数のもの、第2のコイルは例えば125kHz帯対応のサイズおよびターン数のものがそれぞれ必要となり、携帯電話端末などコンパクトに非常に高密度に部品が実装されたデバイスにおいては本来の電話機能にかかわるアンテナの他に、上記の異なる2つのコイルを搭載するスペースを確保することは困難である。 However, in the prior art, for example in order to realize a device having both functions of the radio communication and the non-contact power transmission by electromagnetic induction, the first coil of the RFID function and therefore, the second coil of the charging function and therefor may be mounted in each but the first coil as the size and number of turns corresponding to the 13.56MHz band, the second coil is required each include the example 125kHz band corresponding size and number of turns, mobile other antenna relating to the original telephone function in the case of the telephone terminal device very dense parts compactly are mounted such, it is difficult to secure a space for mounting two coils of different above.

仮に、充電に関わる動作周波数をRFID機能とあわせて13.56MHzで実現するなど、電磁誘導に用いるコイルを共通化した場合には省スペース化できるが、一つのコイルに通信と充電の機能を混載するために、スイッチなどにより、これらの機能を時間的に分離する必要が有り、充電と通信は同時にはできないことになる。 If, such as implemented by 13.56MHz operating frequency related to the charge along with the RFID function, hybrid can save space in the case of sharing the coils used in the electromagnetic induction, the functions of charging and communication to one of the coil to, by a switch, these functions temporally it is necessary to separate the charging and communication would not be at the same time. ここで、例えばNFC(Near Field Communication)やフェリカに代表される13.56MHz帯の情報通信と非接触充電とをひとつのコイルで共用化した具体的な開示はない。 Here, for example, NFC (Near Field Communication) and no specific disclosure was shared by one coil and the information communication and non-contact charging of 13.56MHz band typified by FeliCa.

さらに、非接触充電の際にコイルを共通化した上で通信によるID認証機能を用いた充電制御方法についても開示例がなく、この場合、充電器と被充電機器間でID認証を行えないため、誤って充電器に非対応機器や異物を配置した場合には過熱する恐れがあった。 Furthermore, there is no example disclosed also a charge control method using the ID authentication through communication coils during contactless charging on that common, in this case, since not perform ID authentication between charger and the charging device , in the case of arranging the non-compliant device or foreign objects in the charger incorrectly there is a risk of overheating.

また、コイルが共用であっても充電と通信は時間的に分離されているか、時間的には同時であっても充電用と通信用のコイルとは互いに空間的に分離された異なるものであった。 Further, either coil to communicate with the charge be shared are temporally separated, be different spatially separated from each other and a coil for communication with the time for charging even simultaneous It was.

あるいは、充電に関わる動作周波数をRFID機能とあわせて13.56MHzで実現するなど、電磁誘導に用いるコイルを共通化した場合には省スペース化できるが、ひとつのコイルに通信と充電の機能を混載するため、スイッチなどにより、これらの機能を時間的に分離しなければならないという課題があった。 Alternatively, etc. realized by 13.56MHz operating frequency related to the charge along with the RFID function, hybrid can save space in the case of sharing the coils used in the electromagnetic induction, the functions of the communication to one of the coil charging to, by a switch, there is a problem that these functions must be separated in time.

本発明は、上記の課題を解決し、省スペース化が可能で、その上、対応機器にのみ充電可能であり、さらに充電と通信が同時に実現可能な電力・信号伝送モジュール、非接触充電モジュールならびに非接触充電および信号伝送システムを提供することにある。 The present invention is to solve the above problems, allows space saving, Moreover, can only be charged in the corresponding device, further charging communication at the same time feasible power and signal transmission module, a non-contact charging module and and to provide a non-contact charging and the signal transmission system.

本発明は、上記の課題を解決するためになされたものであり、RFIDなどデータ通信と非接触充電に用いるコイルを共用とすることで省スペース化をし、ID認証により対応機器にのみ充電可能であり、さらに充電と通信が同時にできる非接触充電および信号伝送システムを実現するものである。 The present invention has been made to solve the above problems, and space saving by a shared coil used in such data communication and non-contact charging RFID, can only be charged in a corresponding device by the ID authentication , and the one in which further charge the communication to realize a non-contact charging and signal transmission system capable of simultaneously.

すなわち、本発明によれば、電力伝送機能、信号送受信機能及び情報処理機能を備えた携帯機器用の電力・信号伝送モジュールであって、二次電池の充電または負荷回路を制御するための第1の電力制御回路と、信号送受信を制御するための第1の信号制御・情報処理回路と、電力伝送と信号送受信とを分離、結合するための第1の分離結合回路とを備え、前記第1の電力制御回路と前記第1の信号制御・情報処理回路とはともに、前記第1の分離結合回路を介して第1のコイルに接続されたことを特徴とする電力・信号伝送モジュールが得られる。 That is, according to the present invention, a power transmission function, a power-signal transmission module for a mobile apparatus having a signal transmission and reception function and an information processing function, first to control the charging or load circuit of the rechargeable battery comprising a power control circuit, a first signal control and processing circuitry for controlling the signal transmission and reception, power transmission and separates the signal transmission and reception, and a first separation-coupling circuit for coupling the first both the power control circuit and the first signal control and processing circuit, the first power-signal transmission module, characterized in that via a separate coupling circuit connected to the first coil is obtained .

また、本発明によれば、前記第1の電力制御回路と前記第1の信号制御・情報処理回路とに接続し、電力伝送と信号送受信の搬送波を互いに同期して形成させるための基本駆動信号を生成する第1の発振子を備えることを特徴とする上記の電力・信号伝送モジュールが得られる。 Further, according to the present invention, the first connected to said power control circuit first signal control and processing circuit, the basic driving signal for forming synchronization a carrier wave of power transmission and signal transmission and reception with each other the above power and signal transmission module, characterized in that it comprises a first oscillator for generating obtained.

また、本発明によれば、電力伝送機能、信号送受信機能及び情報処理機能を備えた非接触充電モジュールであって、電源部からの電力を制御するための第2の電力制御回路と、信号送受信を制御するための第2の信号制御・情報処理回路と、電力伝送と信号送受信とを分離・結合するための第2の分離結合回路を備え、前記第2の電力制御回路と前記第2の信号制御・情報処理回路とはともに、前記分離結合回路を介して第2のコイルに接続されたことを特徴とする非接触充電モジュールが得られる。 Further, according to the present invention, a power transmission function, a non-contact charging module having a signal transmission and reception function and an information processing function, and the second power control circuit for controlling the power from the power supply unit, signal transmission and reception a second signal control and processing circuitry for controlling, a second separation-coupling circuit for separating and coupling the power transmission and signal transmission and reception, and the second power control circuit and the second both the signal control and processing circuit, a non-contact charging module, wherein the was through a separate coupling circuit connected to the second coil can be obtained.

また、本発明によれば、前記第2の電力制御回路と前記第2の信号制御・情報処理回路とに接続し、電力伝送と信号送受信の搬送波を互いに同期して形成させるための基本駆動信号を生成する第2の発振子を備えることを特徴とする上記の非接触充電モジュールが得られる。 Further, according to the present invention, the second is connected to a power control circuit and the second signal control and processing circuit, the basic driving signal for forming synchronization a carrier wave of power transmission and signal transmission and reception with each other the above non-contact charging module, characterized in that it comprises a second oscillator for generating obtained.

また、本発明によれば、上記の電力・信号伝送モジュールと上記の非接触充電モジュールからなり、各々前記第1のコイル及び前記第2のコイルを介して互いに電磁誘導により非接触で電力伝送および信号送受信することを特徴とする非接触充電および信号伝送システムが得られる。 Further, according to the present invention consists of a non-contact charging module of the power and signal transmission module and the power transfer and in a non-contact manner by electromagnetic induction with each other through the respective said first coil and said second coil contactless charging and signal transmission system, characterized in that the signal transmission and reception is obtained. すなわち、電力伝送と信号送受信の駆動を同期させるための共通な発振子を有する電力・信号伝送モジュール、発振子を有しない電力・信号伝送モジュールと、発振子を有する非接触充電モジュール、発振子を有しない非接触充電モジュールとの組み合わせで4組の非接触充電および信号伝送システムが得られる。 That is, a power-signal transmission module having no power and signal transmission module, an oscillator having a common oscillator for synchronizing the drive of the power transmission and signal transmission and reception, the non-contact charging module having an oscillator, the oscillator no non-contact charging module and the non-contact charging and the signal transmission system 4 sets of the combination are obtained.

また、本発明によれば、上記の非接触充電モジュールに上記の電力・信号伝送モジュールのIDが登録され、上記の非接触充電モジュール上に上記の電力・信号伝送モジュールが配置された際、非接触通信によりデータ通信を行い、上記の電力・信号伝送モジュールのIDを識別し、予め上記の非接触充電モジュールに登録されたIDと一致した場合にのみ充電を開始する認証機能を有する上記の非接触充電および信号伝送システムが得られる。 Further, according to the present invention, it is registered ID of the above power-signal transmission module in a non-contact charging module, when the above-mentioned power-signal transmission module is disposed on the non-contact charging module, a non performs data communication by contactless communication, it identifies the ID of the power and signal transmission module, said non only an authentication function to start charging when matches the ID registered in advance to the non-contact charging module contact charging and signal transmission system is obtained. すなわち、この場合も、電力伝送と信号送受信の駆動を同期させるための共通な発振子を有する電力・信号伝送モジュール、発振子を有しない電力・信号伝送モジュールと、発振子を有する非接触充電モジュール、発振子を有しない非接触充電モジュールとの組み合わせで4組の非接触充電および信号伝送システムが得られる。 That is, the non-contact charging module having Again, the power and signal transmission module having no power and signal transmission module, an oscillator having a common oscillator for synchronizing the drive of the power transmission and signal reception, the oscillator , contactless charging module and the non-contact charging and the signal transmission system 4 sets of a combination is obtained having no resonator.

また、本発明によれば、電力伝送時、信号送受信時に前記第1のコイルに励起される電圧波形が同一であることを特徴とする上記の非接触充電および信号伝送システムが得られる。 Further, according to the present invention, during power transmission, and a non-contact charging and the signal transmission system described above can be obtained, wherein the voltage waveform is excited when a signal is transmitted and received in the first coil is the same.

また、本発明によれば、信号送受信は13.56MHz帯の周波数を利用したデータ通信であることを特徴とする上記の非接触充電および信号伝送システムが得られる。 Further, according to the present invention, the signal transmitting and receiving non-contact charging and the signal transmission system described above can be obtained, which is a data communication using a frequency of 13.56MHz band.

本発明の電力・信号送受信モジュール、非接触充電モジュールならびに非接触充電および信号伝送システムは、RFIDなどデータ通信と非接触充電に用いるコイルを共用とすることで省スペース化をし、ID認証により対応機器にのみ充電可能であり、さらに充電と通信が同時に実現可能なる。 Power and signal transmission and reception module of the present invention, the non-contact charging module and non-contact charging and the signal transmission system, and space saving by a shared coil used in such data communication and non-contact charging RFID, corresponding with the ID authentication can only be charged in the apparatus, the charging and communication can be realized at the same time further.

即ち、新規に充電用のコイルを追加することなく、データ通信用のコイルと共用して非接触充電できる点、ID認証を行って充電を開始できる点、充電と通信が同時に実現可能となる特徴を有しており、さらに置いておくだけで安全に充電可能な非接触充電システムを実現することができる。 That is, without adding the coil for charging new, that can be non-contact charging shared with coil for data communication, that can start charging by performing the ID authentication, characterized charging and communication can be realized at the same time the has, it is possible to realize a safe non-contact charging system which can be charged by simply kept further at.

具体的には、13.56MHz帯を利用し、電磁誘導を利用した非接触充電システムであり、フェリカやNFCなどの無線データ通信で用いるコイルを充電用のコイルとして利用している。 Specifically, utilizing the 13.56MHz band, a non-contact charging system using electromagnetic induction, utilizes a coil to be used in wireless data communication such as FeliCa and NFC as a coil for charging. 充電と通信は同じ電圧波形を使用しており、これらが時間的空間的に同一である。 Charging and communication is using the same voltage waveform, they are temporally and spatially the same. さらに、ID認証機能を有しており、非接触充電を行う際、認証された機器のみに充電を行うことができ、通信機能を活用したID認証方式により充電対応物を安全に識別可能である。 Further comprises an ID authentication function, when performing non-contact charging, only the authorized devices can be charged, is safe identifiable charged counterparts by ID authentication method utilizing a communication function .

本発明の実施の形態1に係る非接触充電および信号伝送システムの概略図。 Contactless charging and schematic diagram of a signal transmission system according to a first embodiment of the present invention. 本発明の実施の形態1に係る携帯機器用の電力・信号伝送モジュールの概略図。 Schematic diagram of a power-signal transmission module for a portable device according to a first embodiment of the present invention. 本発明の実施の形態1に係る非接触充電モジュールの概略図。 Schematic view of a non-contact charging module according to a first embodiment of the present invention. 本発明の実施の形態1に係る非接触充電および信号伝送システムのコイル両端に発生する電圧動作波形を示す図。 It shows voltage waveforms generated in a non-contact charging and the coil ends of the signal transmission system according to a first embodiment of the present invention. 従来例の非接触充電システムにおけるコイル両端に発生する電圧動作波形を示す図。 It shows voltage waveforms generated in the coil ends in the non-contact charging system in the prior art. 他の従来例の非接触充電システムにおけるコイル両端に発生する電圧動作波形を示す図。 It shows voltage waveforms generated in the coil ends in the non-contact charging system of another conventional example. 本発明の実施の形態2に係る非接触充電および信号伝送システムの概略図。 Contactless charging and schematic diagram of a signal transmission system according to a second embodiment of the present invention. 本発明の実施の形態3に係る非接触充電および信号伝送システムの概略図。 Schematic view of a contactless charging and signal transmission system according to the third embodiment of the present invention.

以下、本発明の実施の形態について、図面を用いながら詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(実施の形態1) (Embodiment 1)
図1は、本発明の実施の形態1に係る非接触充電および信号伝送システムの概略図を示している。 Figure 1 shows a schematic view of a non-contact charging and the signal transmission system according to a first embodiment of the present invention. 図1に示すように、本発明の実施の形態1に係る非接触充電および信号伝送システム10は、携帯端末などの電力・信号伝送モジュール11と、充電器などの非接触充電モジュール21とからなり、各々のコイル、すなわち第1のコイル16、第2のコイル26を介して互いに電磁誘導により非接触で電力伝送および信号送受信する構成となっている。 As shown in FIG. 1, the non-contact charging and the signal transmission system 10 according to the first embodiment of the present invention includes a power-signal transmission module 11, such as a mobile terminal, of a non-contact charging module 21. such as the charger It has become a power transmission and signal transmission and reception of a non-contact manner by electromagnetic induction with each other through each coil, i.e., the first coil 16, the second coil 26.

図2は、本発明の実施の形態1に係る携帯機器用の電力・信号伝送モジュールの概略図を示している。 Figure 2 shows a schematic diagram of a power-signal transmission module for a portable device according to a first embodiment of the present invention. 図2に示すように、携帯機器用の電力・信号伝送モジュール11は、電力伝送機能と信号送受信機能と情報処理機能を各々備え、二次電池12の充電またはその他の負荷回路を制御するための第1の電力制御回路13と、信号送受信を制御するための第1の信号制御・情報処理回路14とはともに、電力伝送と信号送受信とを分離、結合する機能を有する第1の分離結合回路15を介して単一コイルである第1のコイル16の両端に共通に接続されている。 As shown in FIG. 2, power and signal transmission module 11 of the portable device is provided with each power transmission function and a signal transmitting and receiving function and an information processing function, for controlling the charge or other load circuits of the secondary battery 12 a first power control circuit 13, both the first signal control and processing circuit 14 for controlling the signal transmission and reception, separates the power transmission and signal transmission and reception, the first separation-coupling circuit having a function of binding are commonly connected to the two ends of the first coil 16 is a single coil through 15.

図3は、本発明の実施の形態1に係る非接触充電モジュールの概略図を示している。 Figure 3 shows a schematic view of a non-contact charging module according to a first embodiment of the present invention. 図3に示すように、非接触充電モジュール21は、電力伝送機能と信号送受信機能と情報処理機能を各々備え、電源部22と、これを制御するための第2の電力制御回路23と、信号送受信を制御するための第2の信号制御・情報処理回路24とからなり、これらはともに電力伝送と信号送受信とを分離、結合する機能を有する第2の分離結合回路25を介して単一コイルである第2のコイル26の両端に共通に接続されている。 As shown in FIG. 3, the non-contact charging module 21 includes each of a power transmission function and signal transmission and reception function and an information processing function, a power supply unit 22, and the second power control circuit 23 for controlling the signal made from the second signal control and processing circuitry 24 for for controlling transmission and reception, both separate the power transmission and signal transmission and reception, a single coil through the second separation-coupling circuit 25 having a function of binding are commonly connected to both ends of the second coil 26 is.

次に、本発明について、非接触充電および信号伝送システムの動作状態における、充電および信号波形に着目して、具体的な事例を説明する。 Next, the present invention, in the operating state of non-contact charging and the signal transmission system, in view of the charging and the signal waveform, a specific case. システムの構成は図1に示した構成とし、具体的な動作周波数はNFCを想定した13.56MHzとしており、これは充電に関わる周波数も共通とした。 Configuration of the system is the configuration shown in FIG. 1, the specific operating frequency is set to 13.56MHz assuming the NFC, which was also common frequency related to charging.

図4に、本発明の実施の形態1に係る非接触充電および信号伝送システムのコイル両端に発生する電圧動作波形を示す。 Figure 4 shows the voltage waveforms generated in a non-contact charging and the coil ends of the signal transmission system according to a first embodiment of the present invention. 充電およびデータ通信には同一のコイルを共用し、これらは同じ周波数で実施している。 They share the same coil for charging and data communication, which are performed at the same frequency.

図4に示すように、電圧波形61は、RFIDのデータ通信に関わるコイル両端にかかる電圧波形であり、充電のための伝送電圧波形でもある。 As shown in FIG. 4, the voltage waveform 61 is a voltage waveform applied to the coil ends relating to data communication RFID, is also the transmission voltage waveform for charging. つまりこれらの電圧波形も共通化されていることが特徴であり、電力伝送と信号送受信に関わる送信コイルに励起される電圧波形が同一である。 That is characterized in that even these voltage waveforms are common, are the same voltage waveform excited to the transmitter coil involved in power transmission and signal transmission and reception. 時間T1は、データ通信および充電がいずれも行われておらずオフの状態である。 Time T1 is data communication and charging are in the OFF state not performed any. ここで、充電の開始に当たって、充電モジュールにあらかじめ登録された被充電機器の個別IDと被充電機器のIDを照合する。 Here, at the start of charging, it collates the ID of the individual ID and the charging device of the charging device that was previously registered with the charging module. そこでは非接触通信によりデータ通信を行うことでID認証を実行し、予め非充電機器に登録されたIDと一致するなどの条件を満たせば充電を開始する過程を踏んでいる。 Where is stepped on the process of starting the charging satisfies the conditions such as running ID authentication by performing data communication by the contactless communication, it matches the ID registered in advance in the non-charging device. 時間T2は、前記認証が確認できた後に、データ通信と充電との両方が行われており、13.56MHzの搬送波にデータが重畳した変調波形を示している。 Time T2, after the authentication is confirmed, data communication and both have been performed with live shows modulation waveform data is superposed on 13.56MHz carrier. 時間T3は、充電のみ実施されている状態である。 Time T3 is the state of being implemented only charged. ここではデータ通信に伴う変調波形はない。 Here no modulation waveform associated with data communications. 時間T4ではいずれもオフ状態である。 One at time T4 is also off state.

このように、充電およびデータ通信に同一のコイルを共用し、時間的、空間的に同時に実行するために、電力伝送と信号送受信とを分離・結合する機能を有する分離結合回路を介して単一コイルの両端に共通に接続されている。 Single Thus, share the same coil in the charging and data communication, time, to perform spatially simultaneously, through the separation-coupling circuit having a function for separating and coupling the power transmission and signal transmission and reception It is commonly connected to both ends of the coil. このため、同一のコイルで通信中も充電可能となっている。 Therefore, it is also made possible charge during communication by the same coils.

図5は、従来例の非接触充電システムにおけるコイル両端に発生する電圧動作波形を示している。 Figure 5 shows voltage waveforms generated in the coil ends in the non-contact charging system in the prior art. 図5に示すように、電圧波形41は、RFIDのデータ通信に関わるコイル両端にかかる電圧波形であり、電圧波形42は、充電のための伝送電圧波形である。 As shown in FIG. 5, the voltage waveform 41 is a voltage waveform applied to the coil ends relating to data communication RFID, the voltage waveform 42 is a transmission voltage waveform for charging. 時間T1は、データ通信および充電がいずれも行われておらずオフの状態である。 Time T1 is data communication and charging are in the OFF state not performed any. 時間T2は、データ通信および充電が同時に行われており、電圧波形41のデータ通信は13.56MHzの搬送波にデータが重畳した変調波形を示し、電圧波形42の充電は125kHzの動作周波数で実施されている。 Time T2 is data communication and charging are carried out simultaneously, data communication of the voltage waveform 41 shows the modulation waveform data is superposed on 13.56MHz carrier, the charging of the voltage waveform 42 is performed at the operating frequency of 125kHz ing. これらは互いに異なる回路網およびコイルによりなされるものである。 These are made by the different circuitry and coil. 時間T3では充電のみ実施している状態である。 At time T3 is a state that has implemented only charging. 時間T4ではいずれもオフ状態である。 One at time T4 is also off state.

図6は、他の従来例の非接触充電システムにおけるコイル両端に発生する電圧動作波形を示している。 Figure 6 shows voltage waveforms generated in the coil ends in the non-contact charging system of another conventional example. 充電およびデータ通信には同一のコイルを共用し、これらが同じ周波数帯で実施されているケースである。 The charging and data communications share the same coil, a case where they are carried out in the same frequency band.

図6に示すように、電圧波形51は、RFIDのデータ通信に関わるコイル両端にかかる電圧波形であり、電圧波形52は、充電のための伝送電圧波形である。 As shown in FIG. 6, the voltage waveform 51 is a voltage waveform applied to the coil ends relating to data communication RFID, the voltage waveform 52 is a transmission voltage waveform for charging. 時間T1は、データ通信および充電がいずれも行われておらずオフの状態である。 Time T1 is data communication and charging are in the OFF state not performed any. 時間T2は、データ通信が行われており、電圧波形51のデータ通信は125kHzの搬送波にデータが重畳した変調波形を示している。 Time T2 is the data communication has been performed, the data communication of the voltage waveform 51 shows a modulated waveform obtained by superimposing data on a carrier wave of 125 kHz. 時間T3は、充電のみ実施されている状態である。 Time T3 is the state of being implemented only charged. 時間T4ではいずれもオフ状態である。 One at time T4 is also off state.

このように、従来例では、充電およびデータ通信に同一のコイルを共用するために、充電およびデータ通信を実行するタイミングを時間的に分離している。 Thus, in the conventional example, in order to share the same coil in the charging and data communication are separated in time when to run the charging and data communication.

(実施の形態2) (Embodiment 2)
次に他の実施の形態を説明する。 Next, a description will be given of another embodiment. 図7は、本発明の実施の形態2に係る非接触充電および信号伝送システムの概略図を示している。 Figure 7 shows a schematic view of a non-contact charging and the signal transmission system according to the second embodiment of the present invention. 図7に示すように、実施の形態2に係る非接触充電および信号伝送システム70は、図1と同じく、携帯端末などの電力・信号伝送モジュール71と、充電器などの非接触充電モジュール81とからなり、各々のコイル、第1のコイル76、第2のコイル86を介して互いに電磁誘導により非接触で電力伝送および信号送受信する構成となっている。 As shown in FIG. 7, the non-contact charging and the signal transmission system 70 according to the second embodiment, as in FIG. 1 as well, a power-signal transmission module 71, such as a mobile terminal, a non-contact charging module 81 such as the charger consists, has a structure that electric power transmission and signal transmission and reception in a non-contact manner by electromagnetic induction with each other through each coil, the first coil 76, the second coil 86.

携帯機器用の電力・信号伝送モジュール71は、電力伝送機能と信号送受信機能と情報処理機能を各々備え、二次電池72の充電またはその他の負荷回路を制御するための第1の電力制御回路73と、信号送受信を制御するための第1の信号制御・情報処理回路74とはともに、電力伝送と信号送受信とを分離、結合する機能を有する第1の分離結合回路75を介して単一コイルである第1のコイル76の両端に共通に接続されている。 Power and signal transmission module 71 of the portable device is provided with each power transmission function and a signal transmitting and receiving function and an information processing function, first to control the charging or other load circuits of the secondary battery 72 of the power control circuit 73 When both the first signal control and processing circuit 74 for controlling the signal transmission and reception, separates the power transmission and signal transmission and reception, a single coil through the first separation-coupling circuit 75 having a function of binding it is commonly connected to the two ends of the first coil 76 is.

また、電力伝送機能と信号送受信機能と情報処理機能を各々備えた非接触充電モジュール81は、電源部82と、これを制御するための第2の電力制御回路83と、信号送受信を制御するための第2の信号制御・情報処理回路84とからなり、これらはともに電力伝送と信号送受信とを分離、結合する機能を有する第2の分離結合回路85を介して単一コイルである第2のコイル86の両端に共通に接続されている。 The non-contact charging module 81 with each power transfer function and signal transmission and reception function and an information processing function, a power supply unit 82, and the second power control circuit 83 for controlling this, to control the signal transmission and reception the result from the second signal control and processing circuit 84, which together separate the power transmission and signal transmission and reception, the second is a single coil through the second separation-coupling circuit 85 having a function of binding It is commonly connected to both ends of the coil 86. これらが各々の第1のコイル76、第2のコイル86を介して互いに電磁誘導により非接触で電力伝送および信号送受信される非接触充電および信号伝送システム70を構成している。 It constitutes a non-contact charging and the signal transmission system 70 to be power transmission and signal transmission and reception in a non-contact manner by electromagnetic induction to each other via the first coil 76, second coil 86 each. ここで、発振子88は、第2の電力制御回路83と第2の信号制御・情報処理回路84とに接続されている。 Here, oscillator 88 is connected to the second power control circuit 83 and the second signal control and processing circuitry 84. 前記電力伝送と前記信号送受信に関わる搬送波は共通の発振子88が生成する基本駆動信号により互いに同期して形成される。 Carrier involved in the signal transmission and reception and the power transmission are formed in synchronism with each other by a basic driving signal for generating a common oscillator 88. この例の場合も実施の形態1と同様に、充電およびデータ通信に同一のコイルを共用し、時間的、空間的に同時に実行するために、電力伝送と信号送受信とを分離・結合する機能を有する分離結合回路を介して単一コイルの両端に共通に接続されているため、同一のコイルで通信中も充電可能となっている。 As in the first also performed in this example, share the same coil in the charging and data communication, time, to perform spatially simultaneously, the ability to separate and couple the power transmission and signal transmission and reception because it is connected in common to both ends of the single coil through the separation-coupling circuit having, it is also a possible charge during communication by the same coils.

(実施の形態3) (Embodiment 3)
次にさらに他の実施の形態を説明する。 Next further described other embodiments. 図8は、本発明の実施の形態3に係る非接触充電および信号伝送システムの概略図を示している。 Figure 8 shows a schematic view of a non-contact charging and the signal transmission system according to the third embodiment of the present invention. 図8に示すように、実施の形態3に係る非接触充電および信号伝送システム90は、図1、7と同じく、携帯端末などの電力・信号伝送モジュール91と、充電器などの非接触充電モジュール101とからなり、各々のコイル、第1のコイル96、第2のコイル106を介して互いに電磁誘導により非接触で電力伝送および信号送受信する構成となっている。 As shown in FIG. 8, a non-contact charging and the signal transmission system 90 according to the third embodiment, the non-contact charging module as in the Figure 1 and 7, the power-signal transmission module 91, such as a mobile terminal, such as a charger It made 101 Prefecture, each coil, the first coil 96, and has a power transmission and signal transmission and reception of a non-contact manner by electromagnetic induction to each other through the second coil 106.

携帯機器用の電力・信号伝送モジュール91は、電力伝送機能と信号送受信機能と情報処理機能を各々備え、二次電池92の充電またはその他の負荷回路を制御するための第1の電力制御回路93と、信号送受信を制御するための第1の信号制御・情報処理回路94とはともに、電力伝送と信号送受信とを分離、結合する機能を有する第1の分離結合回路95を介して単一コイルである第1のコイル96の両端に共通に接続されている。 Power and signal transmission module 91 of the portable device is provided with each power transmission function and a signal transmitting and receiving function and an information processing function, the first power control circuit for controlling the charging or other load circuits of the rechargeable battery 92 93 When both the first signal control and processing circuit 94 for controlling the signal transmission and reception, separates the power transmission and signal transmission and reception, a single coil through the first separation-coupling circuit 95 having a function of binding it is commonly connected to the two ends of the first coil 96 is. また、第1の発振子98は、第1の電力制御回路93と第1の信号制御・情報処理回路94とに接続されている。 The first oscillator 98 is connected to the first power control circuit 93 and the first signal control and processing circuitry 94.

また、電力伝送機能と信号送受信機能と情報処理機能を各々備えた非接触充電モジュール101は、電源部102と、これを制御するための第2の電力制御回路103と、信号送受信を制御するための第2の信号制御・情報処理回路104とからなり、これらはともに電力伝送と信号送受信とを分離、結合する機能を有する第2の分離結合回路105を介して単一コイルである第2のコイル106の両端に共通に接続されている。 The non-contact charging module 101 with each power transfer function and signal transmission and reception function and an information processing function, a power supply unit 102, a second power control circuit 103 for controlling this, to control the signal transmission and reception the result from the second signal control and processing circuitry 104., both separate the power transmission and signal transmission and reception, the second is a single coil through the second separation-coupling circuit 105 having a function of binding It is commonly connected to both ends of the coil 106. また、第2の発振子108は、第2の電力制御回路103と第2の信号制御・情報処理回路104とに接続されている。 The second oscillator 108 is connected to the second power control circuit 103 and the second signal control and processing circuit 104. これらが各々の第1のコイル96、第2のコイル106を介して互いに電磁誘導により非接触で電力伝送および信号送受信される非接触充電および信号伝送システム90を構成している。 These constitute the first coil 96, the non-contact charging and the signal transmission system 90 to be power transmission and signal transmission and reception in a non-contact manner by electromagnetic induction to each other through the second coil 106 of each. ここで、前記電力伝送と前記信号送受信に関わる搬送波は共通の、第1の発振子98、第2の発振子108が生成する基本駆動信号により互いに同期して形成される。 Here, in common with the power transmission carrier wave related to the signal transmission and reception, the first resonator 98 is formed in synchronism with each other by the basic drive signal a second oscillator 108 generates. この例の場合も実施の形態1、2と同様に、充電およびデータ通信に同一のコイルを共用し、時間的、空間的に同時に実行するために、電力伝送と信号送受信とを分離・結合する機能を有する分離結合回路を介して単一コイルの両端に共通に接続されているため、同一のコイルで通信中も充電可能となっている。 Similarly to the first embodiment and the second also performed in this example, share the same coil in the charging and data communication, in order to perform temporal, spatial simultaneously separating and coupling the power transmission and signal transmission and reception because it is connected in common to both ends of the single coil through the separation-coupling circuit having a function, but also a possible charge during communication by the same coils.

なお、上記の例以外にも、発振子を有する電力・信号伝送モジュールと、発振子を有しない非接触充電モジュールとの組み合わせで非接触充電および信号伝送システムを構成することも可能である。 Incidentally, besides the above example, it is possible to configure a power-signal transmission module, a non-contact charging and the signal transmission system in combination with non-contact charging module no oscillator having a resonator.

本発明は、フェリカやNFCなどの無線データ通信機能を有する機器において、通信に用いるコイルを共用して例えば13.56MHz帯の周波数による非接触充電が可能となる装置に適用することができる。 The present invention can be in a device having a wireless data communication function such as FeliCa and NFC, it applied to the non-contact charging becomes possible device according to the frequency of the shared coil for example 13.56MHz band used for communication.

10、70、90 非接触充電および信号伝送システム11、71、91 電力・信号伝送モジュール12、72、92 二次電池13、73、93 第1の電力制御回路14、74、94 第1の信号制御・情報処理回路15、75、95 第1の分離結合回路16、76、96 第1のコイル21、81、101 非接触充電モジュール22、82、102 電源部23、83、103 第2の電力制御回路24、84、104 第2の信号制御・情報処理回路25、85、105 第2の分離結合回路26、86、106 第2のコイル41 (RFIDのデータ通信に関わるコイル両端にかかる)電圧波形42 (充電のための伝送)電圧波形51、61 (RFIDのデータ通信に関わるコイル両端にかかる)電圧波形52 (充電のための)伝送電圧波 10,70,90 contactless charging and signal transmission system 11,71,91 power and signal transmission module 12,72,92 rechargeable battery 13,73,93 first power control circuit 14,74,94 first signal control-data processing circuit 15,75,95 first separation-coupling circuits 16,76,96 first coil 21,81,101 contactless charging module 22,82,102 power unit 23,83,103 second power control circuit 24,84,104 second signal control and processing circuit 25,85,105 second separation-coupling circuit 26,86,106 second coil 41 (on the coil ends involved in data communication RFID) voltage waveform 42 (on the coil ends involved in data communication RFID) voltage waveform 51 and 61 (transmission for charging) voltage waveform 52 (for charging) transmission voltage wave 88、108 (第2の)発振子98 第1の発振子 88,108 (second) oscillator 98 first oscillator

Claims (14)

  1. 電力伝送機能、信号送受信機能及び情報処理機能を備えた携帯機器用の電力・信号伝送モジュールであって、二次電池の充電または負荷回路を制御するための第1の電力制御回路と、信号送受信を制御するための第1の信号制御・情報処理回路と、電力伝送と信号送受信とを分離、結合するための第1の分離結合回路とを備え、前記第1の電力制御回路と前記第1の信号制御・情報処理回路とはともに、前記第1の分離結合回路を介して第1のコイルに接続されたことを特徴とする電力・信号伝送モジュール。 Power transmission function, a power-signal transmission module for a mobile apparatus having a signal transmission and reception function and an information processing function, and the first power control circuit for controlling the charging or load circuit of the rechargeable battery, signal transmission and reception a first signal control and processing circuitry for controlling the power transfer and separating a signal transmitting and receiving, and a first separation-coupling circuit for coupling said first and said first power control circuit power and signal transmission module, wherein the signal control and processing circuit both connected to the first coil through the first separation coupling circuit.
  2. 前記第1の電力制御回路と前記第1の信号制御・情報処理回路とに接続し、電力伝送と信号送受信の搬送波を互いに同期して形成させるための基本駆動信号を生成する第1の発振子を備えることを特徴とする請求項1に記載の電力・信号伝送モジュール。 First oscillator for generating a reference drive signal for the first connected to the power control circuit and the first signal control and processing circuit, is formed in synchronization with the carrier wave of the power transmission and signal transmission and reception with each other power and signal transmission module according to claim 1, characterized in that it comprises a.
  3. 電力伝送機能、信号送受信機能及び情報処理機能を備えた非接触充電モジュールであって、電源部からの電力を制御するための第2の電力制御回路と、信号送受信を制御するための第2の信号制御・情報処理回路と、電力伝送と信号送受信とを分離・結合するための第2の分離結合回路を備え、前記第2の電力制御回路と前記第2の信号制御・情報処理回路とはともに、前記分離結合回路を介して第2のコイルに接続されたことを特徴とする非接触充電モジュール。 Power transmission function, a non-contact charging module having a signal transmission and reception function and an information processing function, and the second power control circuit for controlling the power from the power supply unit, the second for controlling the signal transmission and reception and signal control and processing circuit, comprising a second separation-coupling circuit for separating and coupling the power transmission and signal transmission and reception, and the second power control circuit and the second signal control and processing circuitry both non-contact charging module, wherein the connected via a separate coupling circuit to the second coil.
  4. 前記第2の電力制御回路と前記第2の信号制御・情報処理回路とに接続し、電力伝送と信号送受信の搬送波を互いに同期して形成させるための基本駆動信号を生成する第2の発振子を備えることを特徴とする請求項3に記載の非接触充電モジュール。 The second is connected to a power control circuit and the second signal control-information processing circuit, a second oscillator for generating a reference drive signal for forming synchronization a carrier wave of power transmission and signal transmission and reception with each other non-contact charging module according to claim 3, characterized in that it comprises a.
  5. 請求項1に記載の電力・信号伝送モジュールと、請求項3に記載の非接触充電モジュールとからなり、各々前記第1のコイル及び前記第2のコイルを介して互いに電磁誘導により非接触で電力伝送および信号送受信することを特徴とする非接触充電および信号伝送システム。 A power-signal transmission module according to claim 1, composed of a non-contact charging module according to claim 3, power in a non-contact respectively by electromagnetic induction with each other via the first coil and the second coil non-contact charging and the signal transmission system wherein the transmission and signal reception.
  6. 請求項1に記載の電力・信号伝送モジュールと、請求項4に記載の非接触充電モジュールとからなり、各々前記第1のコイル及び前記第2のコイルを介して互いに電磁誘導により非接触で電力伝送および信号送受信することを特徴とする非接触充電および信号伝送システム。 A power-signal transmission module according to claim 1, composed of a non-contact charging module according to claim 4, the power in a non-contact respectively by electromagnetic induction with each other via the first coil and the second coil non-contact charging and the signal transmission system wherein the transmission and signal reception.
  7. 請求項2に記載の電力・信号伝送モジュールと、請求項3に記載の非接触充電モジュールとからなり、各々前記第1のコイル及び前記第2のコイルを介して互いに電磁誘導により非接触で電力伝送および信号送受信することを特徴とする非接触充電および信号伝送システム。 A power-signal transmission module according to claim 2, consists of a non-contact charging module according to claim 3, power in a non-contact respectively by electromagnetic induction with each other via the first coil and the second coil non-contact charging and the signal transmission system wherein the transmission and signal reception.
  8. 請求項2に記載の電力・信号伝送モジュールと、請求項4に記載の非接触充電モジュールとからなり、各々前記第1のコイル及び前記第2のコイルを介して互いに電磁誘導により非接触で電力伝送および信号送受信することを特徴とする非接触充電および信号伝送システム。 A power-signal transmission module according to claim 2, consists of a non-contact charging module according to claim 4, the power in a non-contact respectively by electromagnetic induction with each other via the first coil and the second coil non-contact charging and the signal transmission system wherein the transmission and signal reception.
  9. 請求項3に記載の非接触充電モジュールに請求項1に記載の電力・信号伝送モジュールのIDが登録され、請求項3に記載の非接触充電モジュール上に請求項1に記載の電力・信号伝送モジュールが配置された際、非接触通信によりデータ通信を行い、請求項1に記載の電力・信号伝送モジュールのIDを識別し、予め請求項3に記載の非接触充電モジュールに登録されたIDと一致した場合にのみ充電を開始する認証機能を有する請求項5に記載の非接触充電および信号伝送システム。 In a non-contact charging module according to claim 3 ID of the power and signal transmission module according to claim 1 is registered, the power-signal transmission according to claim 1 onto a non-contact charging module according to claim 3 when the module is arranged, performs data communication by the contactless communication, identifies the ID of the power and signal transmission module according to claim 1, the ID registered in the contactless charging module according beforehand in claim 3 non-contact charging and the signal transmission system according to claim 5 having the authentication function only starts charging when there is a match.
  10. 請求項4に記載の非接触充電モジュールに請求項1に記載の電力・信号伝送モジュールのIDが登録され、請求項4に記載の非接触充電モジュール上に請求項1に記載の電力・信号伝送モジュールが配置された際、非接触通信によりデータ通信を行い、請求項1に記載の電力・信号伝送モジュールのIDを識別し、予め請求項4に記載の非接触充電モジュールに登録されたIDと一致した場合にのみ充電を開始する認証機能を有する請求項6に記載の非接触充電および信号伝送システム。 In a non-contact charging module according to claim 4 ID of the power and signal transmission module according to claim 1 is registered, the power-signal transmission according to claim 1 onto a non-contact charging module according to claim 4 when the module is arranged, performs data communication by the contactless communication, identifies the ID of the power and signal transmission module according to claim 1, the ID registered in the contactless charging module according beforehand to claim 4 non-contact charging and the signal transmission system according to claim 6 having the authentication function only starts charging when there is a match.
  11. 請求項3に記載の非接触充電モジュールに請求項2に記載の電力・信号伝送モジュールのIDが登録され、請求項3に記載の非接触充電モジュール上に請求項2に記載の電力・信号伝送モジュールが配置された際、非接触通信によりデータ通信を行い、請求項2に記載の電力・信号伝送モジュールのIDを識別し、予め請求項3に記載の非接触充電モジュールに登録されたIDと一致した場合にのみ充電を開始する認証機能を有する請求項7に記載の非接触充電および信号伝送システム。 In a non-contact charging module according to claim 3 ID of the power and signal transmission module according to claim 2 is registered, power and signal transmission according to claim 2 on the non-contact charging module according to claim 3 when the module is arranged, performs data communication by the contactless communication, identifies the ID of the power and signal transmission module according to claim 2, the ID registered in the contactless charging module according beforehand in claim 3 non-contact charging and the signal transmission system according to claim 7 having the authentication function only starts charging when there is a match.
  12. 請求項4に記載の非接触充電モジュールに請求項2に記載の電力・信号伝送モジュールのIDが登録され、請求項4に記載の非接触充電モジュール上に請求項2に記載の電力・信号伝送モジュールが配置された際、非接触通信によりデータ通信を行い、請求項2に記載の電力・信号伝送モジュールのIDを識別し、予め請求項4に記載の非接触充電モジュールに登録されたIDと一致した場合にのみ充電を開始する認証機能を有する請求項8に記載の非接触充電および信号伝送システム。 In a non-contact charging module according to claim 4 ID of the power and signal transmission module according to claim 2 is registered, power and signal transmission according to claim 2 on the non-contact charging module according to claim 4 when the module is arranged, performs data communication by the contactless communication, identifies the ID of the power and signal transmission module according to claim 2, the ID registered in the contactless charging module according beforehand to claim 4 non-contact charging and the signal transmission system according to claim 8 having the authentication function only starts charging when there is a match.
  13. 電力伝送時、信号送受信時に前記第1のコイルに励起される電圧波形が同一であることを特徴とする請求項5乃至12のいずれかに記載の非接触充電および信号伝送システム。 Non-contact charging and the signal transmission system according to any one of claims 5 to 12, characterized in that during power transmission, the voltage waveform to be excited when a signal is transmitted and received in the first coil is the same.
  14. 信号送受信は13.56MHz帯の周波数を利用したデータ通信であることを特徴とする請求項5乃至13のいずれかに記載の非接触充電および信号伝送システム。 Non-contact charging and the signal transmission system according to any one of claims 5 to 13, wherein the signal transmitting and receiving is data communication using a frequency of 13.56MHz band.
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