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JP2005151609A - Portable electronic device - Google Patents

Portable electronic device Download PDF

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Publication number
JP2005151609A
JP2005151609A JP2003380953A JP2003380953A JP2005151609A JP 2005151609 A JP2005151609 A JP 2005151609A JP 2003380953 A JP2003380953 A JP 2003380953A JP 2003380953 A JP2003380953 A JP 2003380953A JP 2005151609 A JP2005151609 A JP 2005151609A
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Prior art keywords
battery
remaining capacity
portable electronic
counterpart
charge
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JP2003380953A
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Japanese (ja)
Inventor
Kana Matsuura
可奈 松浦
Takamoto Tsuda
崇基 津田
Hideaki Shoji
英明 東海林
Hirotaka Yamazaki
弘登 山崎
Takeshi Kokubo
武 小久保
Kazuhiro Kondo
和弘 近藤
Naohiro Takahashi
直寛 高橋
Hisashi Akiguchi
久之 秋口
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Sony Corp
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Sony Ericsson Mobile Communications Japan Inc
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Priority to JP2003380953A priority Critical patent/JP2005151609A/en
Publication of JP2005151609A publication Critical patent/JP2005151609A/en
Pending legal-status Critical Current

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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To make other portable electronic device, having no remaining battery capacity operatable under an environment provided with no dedicated charger, when any one of a plurality of portable electronic devices has a sufficient remaining battery capacity. <P>SOLUTION: A residual capacity detecting section 14 detects the remaining capacity of a battery 13. When approach of other portable electronic device 2 is detected via an information transmitting coil 21, a control section 10 detects the remaining battery capacity of that portable electronic device 2. Based on the remaining capacity of the battery 13 and the remaining battery capacity of other portable electronic device 2, the control section 10 controls a switch 21 and a power amplifier 12 to deliver a power discharged from the battery 13 to other portable electronic device 2 via a power coil 11 or charges the battery 13 with a power fed from other portable electronic device 2 via the power coil 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、例えば携帯電話端末やＰＤＡ（Personal Digital Assistant）等の携帯型電子装置及び携帯型電子装置間で電力を伝送するための電力伝送システムに関する。   The present invention relates to a portable electronic device such as a mobile phone terminal or a PDA (Personal Digital Assistant) and a power transmission system for transmitting power between the portable electronic devices.

近年は、携帯電話端末やＰＤＡ等のような小型の携帯型電子装置が広く普及している。これらの携帯型電子装置は、一般に、充電可能なバッテリから供給される電力により動作するものである。また、当該バッテリへの充電は、一般に、その携帯型電子装置専用の充電装置により行われている。   In recent years, small portable electronic devices such as mobile phone terminals and PDAs have become widespread. These portable electronic devices generally operate with electric power supplied from a rechargeable battery. In addition, the battery is generally charged by a charging device dedicated to the portable electronic device.

ここで、バッテリへの充電方式には、大別して、充電端子を接触させた状態で充電を行う接触型充電方式と、充電端子のような接触部を介さずに充電を行う非接触型充電方式とがある。接触型充電方式の場合、充電端子が外部に露出されているため、その充電端子の酸化や腐食等に起因した接触不良が発生する虞れがあるのに対し、非接触型充電方式の場合は、それら接触不良の問題が発生しないことが特徴となっている。   Here, the battery charging method is roughly classified into a contact type charging method in which charging is performed in a state where the charging terminal is in contact, and a non-contact type charging method in which charging is performed without using a contact portion such as a charging terminal. There is. In the case of the contact type charging method, since the charging terminal is exposed to the outside, there is a risk of contact failure due to oxidation or corrosion of the charging terminal, while in the case of the non-contact type charging method The problem is that the problem of poor contact does not occur.

上記非接触型充電方式が適用された装置の一例として、特許文献１には、１次コイルを有する１次側回路と、その１次コイルに近接配置することによって当該１次コイルと電磁結合する２次コイルにバッテリを接続してなる２次側回路とを有し、１次コイルと２次コイルの電磁結合を介してバッテリへの充電を可能とした非接触型充電装置が開示されている。この非接触型充電装置は、２次側回路にてバッテリの電圧値と基準電圧値とを比較し、バッテリの電圧値が基準電圧値に近づいたときには２次側回路の２次コイルの巻数を減少させて１次コイルから２次コイルに伝達される電力を減少させることにより、バッテリが過充電されてしまうことを防止可能となっている。
特開平１１−８９１０３号公報（第１図） As an example of a device to which the non-contact charging method is applied, Patent Document 1 discloses that a primary side circuit having a primary coil and an electromagnetic coupling with the primary coil by being disposed close to the primary coil. A non-contact type charging device having a secondary circuit formed by connecting a battery to a secondary coil and capable of charging the battery via electromagnetic coupling between the primary coil and the secondary coil is disclosed. . This non-contact type charging device compares the voltage value of the battery with the reference voltage value in the secondary side circuit, and when the battery voltage value approaches the reference voltage value, the number of turns of the secondary coil of the secondary side circuit is set. By reducing the electric power transmitted from the primary coil to the secondary coil, it is possible to prevent the battery from being overcharged.
JP-A-11-89103 (FIG. 1)

ところで、複数の携帯型電子装置を、専用の充電装置が無い環境下へ持ち出して使用するような場合において、例えば、ある特定の携帯型電子装置のバッテリが切れてしまった（残容量が無くなった）とすると、当該携帯型電子装置はその後全く使えなくなってしまうことになる。この場合、それら複数の携帯型電子装置を持ち出しているユーザは、当該バッテリが切れてしまって使えない携帯型電子装置を、他の携帯型電子装置と共にその後も持ち歩かなければならず、非常に厄介である。   By the way, in the case where a plurality of portable electronic devices are used in an environment where there is no dedicated charging device, for example, the battery of a certain portable electronic device has run out (the remaining capacity has been lost) ), The portable electronic device will become unusable after that. In this case, a user who has taken out the plurality of portable electronic devices must carry the portable electronic device that cannot be used because the battery has run out with other portable electronic devices, which is very troublesome. It is.

また、専用の充電装置が無い環境下で、複数の携帯型電子装置をセットにして同時使用するような場合において、当該セットで同時使用する複数の携帯型電子装置のうちの何れか一つのバッテリが切れてしまうと、たとえ他の携帯型電子装置のバッテリに充分な容量が残っていたとしても、そのセットは使用できなくなってしまう。すなわち一例として、ＰＤＡと携帯電話端末をセットとし、携帯電話端末を用いた無線通信によりＰＤＡがインターネットへ接続するような場合において、それらＰＤＡと携帯電話端末の何れか一方のバッテリが切れてしまったとすると、たとえ他方のバッテリに充分な残容量があったとしても、その後はインターネットへの接続ができなくなってしまう。   In addition, in a case where a plurality of portable electronic devices are used together as a set in an environment where there is no dedicated charging device, any one of the plurality of portable electronic devices used simultaneously in the set If the battery runs out, the set becomes unusable even if the battery of another portable electronic device has sufficient capacity. That is, as an example, when a PDA and a mobile phone terminal are set, and the PDA is connected to the Internet by wireless communication using the mobile phone terminal, the battery of either the PDA or the mobile phone terminal has run out. Then, even if there is a sufficient remaining capacity in the other battery, connection to the Internet becomes impossible after that.

本発明は、このような実情に鑑みて提案されたものであり、専用の充電装置が無い環境下へ複数の携帯型電子装置を持ち出して使用するような場合において、何れか一つの携帯型電子装置のバッテリに充分な残容量があれば、バッテリ残容量がなくなった携帯型電子装置を使用可能にすることができる、携帯型電子装置、及び、携帯型電子装置間で電力を伝送するための電力伝送システムを提供することを目的とする。   The present invention has been proposed in view of such circumstances, and in the case where a plurality of portable electronic devices are used in an environment where there is no dedicated charging device, any one portable electronic device is used. If the battery of the device has a sufficient remaining capacity, the portable electronic device with no remaining battery capacity can be used, and the portable electronic device and for transmitting power between the portable electronic devices An object is to provide a power transmission system.

本発明の携帯型電子装置は、充放電可能な自機バッテリの残容量を検知しており、他の機器の近接が検知されたとき、当該他の機器が有する相手方バッテリの残容量を検知し、それら自機バッテリの残容量と相手方バッテリの残容量とに基づいて、自機バッテリが放電した電力を非接触状態で外部へ出力する状態と、非接触状態で外部から入力された電力を自機バッテリへ充電する状態とを切り換え制御することにより、自機バッテリの充電又は放電を制御する。   The portable electronic device of the present invention detects the remaining capacity of the own battery that can be charged / discharged, and detects the remaining capacity of the counterpart battery of the other device when the proximity of the other device is detected. Based on the remaining capacity of the own battery and the remaining capacity of the other party battery, the power discharged from the own battery is output to the outside in a non-contact state, and the power input from the outside in the non-contact state is automatically determined. The charging or discharging of the own battery is controlled by switching and controlling the state of charging the machine battery.

また、本発明の電力伝送システムは、本発明にかかる二以上の携帯型電子装置からなる。   The power transmission system of the present invention includes two or more portable electronic devices according to the present invention.

本発明によれば、携帯型電子装置が互いに近接したとき、それら携帯型電子装置間でそれぞれバッテリの残容量を検知し、非接触状態で、残容量の多いバッテリから放電して残容量の少ないバッテリへ充電させる。すなわち、本発明によれば、携帯型電子装置間において非接触状態で相互に電力を供給し合える。   According to the present invention, when the portable electronic devices come close to each other, the remaining capacity of the batteries is detected between the portable electronic devices and discharged from the battery with a large remaining capacity in a non-contact state to reduce the remaining capacity. Charge the battery. That is, according to the present invention, power can be supplied to each other in a non-contact state between portable electronic devices.

本発明によれば、携帯型電子装置を互いに近接させるだけで、相互にバッテリの残容量が検知され、何れか一つの携帯型電子装置のバッテリに充分な残容量があれば、その携帯型電子装置のバッテリから他の携帯型電子装置のバッテリへ充電することができるため、例えば専用の充電装置が無い環境下であっても、それら各携帯型電子装置をそれぞれ使用可能な状態に維持できる。   According to the present invention, by simply bringing portable electronic devices close to each other, the remaining capacity of the batteries is detected from each other, and if there is sufficient remaining capacity in the battery of any one portable electronic device, Since the battery of the device can be charged to the battery of another portable electronic device, for example, each portable electronic device can be maintained in a usable state even in an environment without a dedicated charging device.

以下、図面を参照しながら、本発明実施形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

本発明の携帯型電子装置は、例えば携帯電話端末やＰＤＡ、ノート型パーソナルコンピュータ（パソコン）などに適用可能であり、図１には、本実施形態の携帯型電子装置１の主要部の概略構成を示す。なお、図１の例は、携帯型電子装置１のバッテリ１３と、当該バッテリ１３に対して充放電を行うための充放電回路系のみを示している。当該携帯型電子装置１が携帯電話端末やＰＤＡ、ノート型パーソナルコンピュータである場合において、それらが一般的に備えている他の構成については図示及び説明を省略する。また、図１中、指示符号２にて示され、図中一点鎖線により携帯型電子装置１の構成と区分けされている部分は、他の携帯型電子装置２の主要部の構成である。本実施形態において、他の携帯型電子装置２としては、携帯型電子装置１と同様、例えば携帯電話端末やＰＤＡ、ノート型パーソナルコンピュータを挙げることができる。当該他の携帯型電子装置２の主要部は、携帯型電子装置１の主要部と基本的に同じ構成となされているため、図１ではその図示を省略している。その他、図１中の指示符号２９にて示されている部分は共に、携帯型電子装置１，２の筐体の断面を表している。これら筐体２９は非電導性材料により形成されている。   The portable electronic device of the present invention can be applied to, for example, a mobile phone terminal, a PDA, a notebook personal computer (personal computer), etc. FIG. 1 shows a schematic configuration of a main part of the portable electronic device 1 of the present embodiment. Indicates. The example of FIG. 1 shows only the battery 13 of the portable electronic device 1 and the charge / discharge circuit system for charging / discharging the battery 13. In the case where the portable electronic device 1 is a mobile phone terminal, a PDA, or a notebook personal computer, illustration and description of other configurations generally provided therein are omitted. In FIG. 1, the portion indicated by the reference numeral 2 and separated from the configuration of the portable electronic device 1 by the one-dot chain line in the drawing is the configuration of the main part of the other portable electronic device 2. In the present embodiment, as the other portable electronic device 2, as with the portable electronic device 1, for example, a mobile phone terminal, a PDA, or a notebook personal computer can be cited. Since the main part of the other portable electronic device 2 has basically the same configuration as the main part of the portable electronic device 1, the illustration thereof is omitted in FIG. In addition, the part indicated by the reference numeral 29 in FIG. 1 represents a cross section of the casing of the portable electronic device 1 or 2. These casings 29 are made of a non-conductive material.

〔主要部の回路構成〕
図１において、バッテリ１３は、携帯型電子装置１の各部へ電力を供給するための二次電池である。当該バッテリ１３は、本実施形態の携帯型電子装置１の図示しない他の構成への電源ラインに接続されていると共に、パワーアンプ１２とスイッチ１７を介して電磁コイル１１にも接続されている。 [Circuit configuration of main part]
In FIG. 1, a battery 13 is a secondary battery for supplying power to each part of the portable electronic device 1. The battery 13 is connected to a power supply line to another configuration (not shown) of the portable electronic device 1 of the present embodiment, and is also connected to the electromagnetic coil 11 via a power amplifier 12 and a switch 17.

パワーアンプ１２は、バッテリ１３から放電された電力を増幅して電磁コイル１１へ送るための増幅器である。当該パワーアンプ１２のオン／オフは、制御部１０により制御されている。   The power amplifier 12 is an amplifier for amplifying the electric power discharged from the battery 13 and sending it to the electromagnetic coil 11. On / off of the power amplifier 12 is controlled by the control unit 10.

スイッチ１７は、制御部１０によりそのオン／オフが切換制御されるものであり、スイッチオンによりバッテリ１３と電磁コイル１１が電気的に接続され、スイッチオフによりバッテリ１３と電磁コイル１１が電気的に遮断される。   The switch 17 is controlled to be switched on / off by the control unit 10, and the battery 13 and the electromagnetic coil 11 are electrically connected when the switch is turned on, and the battery 13 and the electromagnetic coil 11 are electrically connected when the switch is turned off. Blocked.

電磁コイル１１は、制御部１０によりスイッチ１７がオンされると共にパワーアンプ１２がオンされてバッテリ１３からの電流が供給されたときには、当該携帯型電子装置１の筐体２９を介して外部へ誘導電磁界を発生させることが可能となされており、一方、制御部１０によりスイッチ１７がオンされると共にパワーアンプ１２がオフされた状態で外部からの誘導電磁界に入ったときには、その誘導電磁界からの電磁誘導により発生した電流をバッテリ１３側へ流すようになされた、例えばコア無しの空芯コイルである。すなわち、当該電磁コイル１１は、バッテリ１３から放電された電力を外部（図１の場合は携帯型電子装置２の電磁コイル１１）へ供給する機能を有すると共に、外部（図１の場合は携帯型電子装置２の電磁コイル１１）から供給された電力を当該携帯型電子装置１のバッテリ１３へ送って充電させるための機能をも有するコイルである。以下、この電磁コイル１１を、電力用コイル１１と呼ぶことにする。   The electromagnetic coil 11 is guided to the outside through the casing 29 of the portable electronic device 1 when the switch 17 is turned on by the control unit 10 and the power amplifier 12 is turned on to supply current from the battery 13. An electromagnetic field can be generated. On the other hand, when the control unit 10 turns on the switch 17 and the power amplifier 12 is turned off, the induction electromagnetic field from the outside is entered. For example, it is an air core coil without a core, which is configured to flow current generated by electromagnetic induction from the battery 13 to the battery 13 side. That is, the electromagnetic coil 11 has a function of supplying electric power discharged from the battery 13 to the outside (the electromagnetic coil 11 of the portable electronic device 2 in the case of FIG. 1) and the outside (portable type in the case of FIG. 1). This coil also has a function for sending power supplied from the electromagnetic coil 11) of the electronic device 2 to the battery 13 of the portable electronic device 1 for charging. Hereinafter, the electromagnetic coil 11 is referred to as a power coil 11.

残容量検知部１４は、例えばダイオードを備え、バッテリ１３の残容量に応じた電圧値を出力する。当該残容量検知部１４からの電圧値は、Ａ／Ｄ（アナログ／ディジタル）変換器１５によりディジタル値に変換されて制御部１０へ送られる。これにより、制御部１０は、Ａ／Ｄ変換器１５から供給されたディジタル値、つまり残容量検知部１４からの検知出力により、バッテリ１３の現在の残容量（すなわち現在の残電力量）を把握することができる。   The remaining capacity detector 14 includes a diode, for example, and outputs a voltage value corresponding to the remaining capacity of the battery 13. The voltage value from the remaining capacity detector 14 is converted into a digital value by an A / D (analog / digital) converter 15 and sent to the controller 10. Thereby, the control unit 10 grasps the current remaining capacity (that is, the current remaining power amount) of the battery 13 based on the digital value supplied from the A / D converter 15, that is, the detection output from the remaining capacity detection unit 14. can do.

切換スイッチ２２と２３は、制御部１０の制御の元、連動して切り換えられるスイッチであり、切換スイッチ２２が被切換端子２３ｔ側に切り換えられる時には、切換スイッチ２３も被切換端子２３ｔ側に切り換えられ、一方、切換スイッチ２２が被切換端子２３ｒ側に切り換えられる時には、切換スイッチ２３も被切換端子２３ｒ側に切り換えられる。切換スイッチ２２が被切換端子２３ｔ側に切り換えられると共に切換スイッチ２３が被切換端子２３ｔ側に切り換えられた場合、電磁コイル２１は送信系回路Ｔｘと接続され、切換スイッチ２２が被切換端子２３ｒ側に切り換えられると共に切換スイッチ２３が被切換端子２３ｒ側に切り換えられた場合、電磁コイル２１は受信系回路Ｒｘと接続される。   The change-over switches 22 and 23 are switches that are linked to each other under the control of the control unit 10, and when the change-over switch 22 is switched to the switched terminal 23t side, the switch 23 is also switched to the switched terminal 23t side. On the other hand, when the selector switch 22 is switched to the switched terminal 23r side, the selector switch 23 is also switched to the switched terminal 23r side. When the selector switch 22 is switched to the switched terminal 23t side and the selector switch 23 is switched to the switched terminal 23t side, the electromagnetic coil 21 is connected to the transmission system circuit Tx, and the selector switch 22 is switched to the switched terminal 23r side. When the changeover switch 23 is switched to the switched terminal 23r side, the electromagnetic coil 21 is connected to the reception system circuit Rx.

電磁コイル２１は、切換スイッチ２２，２３を介して送信系回路Ｔｘのパワーアンプ２４から信号電流が供給されたときには、携帯型電子装置１の筐体２９を介して外部へ誘導電磁界を発生させ、一方、筐体２９の外部からの誘導電磁界に入ったときには、その誘導電磁界からの電磁誘導により発生した信号電流を、切換スイッチ２２，２３を介して受信系回路Ｒｘ側へ流すようになされた、例えばコア無しの空芯コイルである。すなわち、当該電磁コイル２１は、切換スイッチ２２，２３を介して送信系回路Ｔｘから送られてきた送信信号を外部（図１の場合は携帯型電子装置２の電磁コイル２１）へ送信するための情報伝送手段として機能すると共に、外部（図１の場合は携帯型電子装置２の電磁コイル２１）から送信されてきた信号を受信して当該携帯型電子装置１の受信系回路Ｒｘへ送る情報伝送手段としての機能をも有するコイルである。以下、この電磁コイル２１を、情報伝送用コイル２１と呼ぶことにする。   When a signal current is supplied from the power amplifier 24 of the transmission system circuit Tx via the changeover switches 22 and 23, the electromagnetic coil 21 generates an induction electromagnetic field to the outside via the casing 29 of the portable electronic device 1. On the other hand, when an induction electromagnetic field from the outside of the housing 29 is entered, a signal current generated by electromagnetic induction from the induction electromagnetic field is caused to flow to the reception system circuit Rx side via the changeover switches 22 and 23. For example, an air core coil without a core. That is, the electromagnetic coil 21 transmits the transmission signal sent from the transmission system circuit Tx via the changeover switches 22 and 23 to the outside (in the case of FIG. 1, the electromagnetic coil 21 of the portable electronic device 2). Information transmission that functions as information transmission means and receives a signal transmitted from the outside (the electromagnetic coil 21 of the portable electronic device 2 in the case of FIG. 1) and sends the signal to the reception system circuit Rx of the portable electronic device 1 The coil also has a function as a means. Hereinafter, the electromagnetic coil 21 is referred to as an information transmission coil 21.

送信系回路Ｔｘは、大別してＤ／Ａ（ディジタル／アナログ）変換器２５とパワーアンプ２４とから構成されている。Ｄ／Ａ変換器２５は、制御部１０から送られてきたディジタル送信情報をアナログ送信信号に変換してパワーアンプ２４へ送る。パワーアンプ２４は、アナログ送信信号を増幅し、切換スイッチ２３，２２を介して情報伝送用コイル２１へ送る。これにより、制御部１０からの送信情報は、情報伝送用コイル２１を介して外部（図１の場合は携帯型電子装置２）へ送られることになる。   The transmission system circuit Tx is roughly composed of a D / A (digital / analog) converter 25 and a power amplifier 24. The D / A converter 25 converts the digital transmission information sent from the control unit 10 into an analog transmission signal and sends it to the power amplifier 24. The power amplifier 24 amplifies the analog transmission signal and sends it to the information transmission coil 21 via the changeover switches 23 and 22. Thereby, the transmission information from the control unit 10 is sent to the outside (in the case of FIG. 1, the portable electronic device 2) via the information transmission coil 21.

受信系回路Ｒｘは、大別してローノイズアンプ２６とＡ／Ｄ変換器２７とから構成されている。ローノイズアンプ２６は、外部（図１の場合は携帯型電子装置２）から送信されて情報伝送用コイル２１を介して受信された受信信号を増幅し、Ａ／Ｄ変換器２７へ送る。Ａ／Ｄ変換器２７は、ローノイズアンプ２６から送られてきたアナログ受信信号を、ディジタル受信データに変換して制御部１０へ送る。これにより、制御部１０は、携帯型電子装置２から送られてきた情報を受け取ることができる。   The reception system circuit Rx is roughly composed of a low noise amplifier 26 and an A / D converter 27. The low noise amplifier 26 amplifies the received signal transmitted from the outside (portable electronic device 2 in the case of FIG. 1) and received via the information transmission coil 21 and sends the amplified signal to the A / D converter 27. The A / D converter 27 converts the analog reception signal sent from the low noise amplifier 26 into digital reception data and sends it to the control unit 10. Thereby, the control unit 10 can receive information sent from the portable electronic device 2.

ところで、本実施形態の携帯型電子装置１は、他の携帯型電子装置２が近接したか否かを、例えば所定時間毎に監視しており、他の携帯型電子装置２が近接したことを検知したときに、上記情報伝送用コイル２１を介した情報送受信を開始するようになされている。   By the way, the portable electronic device 1 of the present embodiment monitors whether or not another portable electronic device 2 has approached, for example, every predetermined time, and confirms that the other portable electronic device 2 has approached. When detected, information transmission / reception via the information transmission coil 21 is started.

すなわち本実施形態の場合、携帯型電子装置１において、制御部１０は、一例として、上記所定時間毎に、切換スイッチ２２，２３を被切換端子２２ｒ，２３ｒ側に切り換えさせて受信系回路Ｒｘと情報伝送用コイル２１を接続させる制御を行い、受信系回路Ｒｘと情報伝送用コイル２１が接続されている時に、情報伝送用コイル２１を介して外部から所定の近接検知用信号を受信した場合に他の携帯型電子装置２が近接したことを検知する。そして、制御部１０は、切換スイッチ２２，２３を所定のタイミングで切換制御することで、受信系回路Ｒｘと送信系回路Ｔｘを交互に情報伝送用コイル２１に接続させ、他の携帯型電子装置２との間で、信号復調に必要となるクロックの同期と、情報送信と受信を交互に行うための送受信タイミングの同期をとった後に、情報伝送用コイル２１を介した情報送受信を開始する。なお、本実施形態において、携帯型電子装置１は、上記所定の検知用信号の監視による近接検知と共に、自らも、所定時間毎に近接検知用信号を外部へ送信している。したがって、当該携帯型電子装置１からの近接検出用信号を携帯型電子装置２が受信した場合にも、当該携帯型電子装置２において上述同様の処理が可能となる。   That is, in the case of the present embodiment, in the portable electronic device 1, as an example, the control unit 10 switches the change-over switches 22 and 23 to the switched terminals 22 r and 23 r at the predetermined time intervals. When control for connecting the information transmission coil 21 is performed and a predetermined proximity detection signal is received from the outside via the information transmission coil 21 when the reception system circuit Rx and the information transmission coil 21 are connected. It detects that another portable electronic device 2 has come close. Then, the control unit 10 performs switching control of the changeover switches 22 and 23 at a predetermined timing so that the reception system circuit Rx and the transmission system circuit Tx are alternately connected to the information transmission coil 21, and other portable electronic devices are connected. 2, after synchronizing the clock necessary for signal demodulation and synchronizing the transmission / reception timing for alternately transmitting and receiving information, information transmission / reception via the information transmission coil 21 is started. In the present embodiment, the portable electronic device 1 also transmits a proximity detection signal to the outside every predetermined time together with the proximity detection by monitoring the predetermined detection signal. Therefore, even when the portable electronic device 2 receives the proximity detection signal from the portable electronic device 1, the portable electronic device 2 can perform the same processing as described above.

上述したように、携帯型電子装置１と携帯型電子装置２とが近接し、それらの間で情報伝送用コイル２１を介した情報送受信が開始されたとき、携帯型電子装置１と携帯型電子装置２は、それぞれ自機のバッテリ１３の残容量（残電力量）を表す情報を相互に交換する。すなわち、携帯型電子装置１と携帯型電子装置２の制御部１０は、各々、Ａ／Ｄ変換器１５からのディジタル値つまり残容量検知部１４が検知したバッテリ１３の残容量の情報を、上記情報伝送用コイル２１を介して互いに相手方へ送信する。したがって、携帯型電子装置１と携帯型電子装置２の制御部１０は、自機のバッテリ１３の残容量と相手方のバッテリ１３の残容量とを、共に検知できることになる。   As described above, when the portable electronic device 1 and the portable electronic device 2 are close to each other and information transmission / reception via the information transmission coil 21 is started between them, the portable electronic device 1 and the portable electronic device 1 The apparatuses 2 mutually exchange information representing the remaining capacity (remaining power amount) of the battery 13 of the own device. That is, the control units 10 of the portable electronic device 1 and the portable electronic device 2 respectively use the digital value from the A / D converter 15, that is, the information on the remaining capacity of the battery 13 detected by the remaining capacity detecting unit 14. The information is transmitted to the other party via the information transmission coil 21. Therefore, the control unit 10 of the portable electronic device 1 and the portable electronic device 2 can detect both the remaining capacity of the battery 13 of its own device and the remaining capacity of the battery 13 of the other party.

ここで、本実施形態の携帯型電子装置１は、他の携帯型電子装置２と近接したとき、自機のバッテリ１３の残容量と、上述した情報送受信により取得した他の携帯型電子装置２のバッテリの残容量とに基づいて、自機のバッテリ１３を放電させて他の携帯型電子装置２のバッテリを充電させるか、或いは逆に、他の携帯型電子装置２のバッテリからの電力により自機のバッテリ１３を充電するか、或いは、それらの何れも行わないかを決定する。   Here, when the portable electronic device 1 of the present embodiment is in proximity to another portable electronic device 2, the remaining capacity of the battery 13 of the own device and the other portable electronic device 2 acquired by the information transmission / reception described above. Based on the remaining capacity of the battery, the battery 13 of the own device is discharged to charge the battery of the other portable electronic device 2 or, conversely, by the power from the battery of the other portable electronic device 2 It decides whether to charge its own battery 13 or not to perform any of them.

そして、本実施形態の携帯型電子装置１は、自機のバッテリ１３を放電させて他の携帯型電子装置２のバッテリを充電させることに決定した場合、自機のバッテリ１３の残容量と、上述の情報送受信により取得した他の携帯型電子装置２のバッテリの残容量とに基づいて、自機のバッテリ１３からの放電量を求め、その放電量分だけ自機のバッテリ１３を放電させる。これにより、他の携帯型電子装置２のバッテリは、上記携帯型電子装置１のバッテリ１３からの放電量分だけ充電されることになる。逆に、他の携帯型電子装置２のバッテリからの電力により自機のバッテリ１３を充電することに決定した場合、携帯型電子装置１は、自機のバッテリ１３の残容量と他の携帯型電子装置２のバッテリの残容量とに基づいて、自機のバッテリ１３への充電量を求め、他の携帯型電子装置２から供給された電力を用いて、その充電量分だけ自機のバッテリ１３を充電する。これにより、当該携帯型電子装置１のバッテリ１３は、その充電量分だけ充電されることになる。   And when portable electronic device 1 of this embodiment decides to discharge battery 13 of its own device and charge the battery of other portable electronic device 2, the remaining capacity of battery 13 of its own device, Based on the remaining capacity of the battery of the other portable electronic device 2 acquired by the information transmission / reception described above, the discharge amount from the battery 13 of the own device is obtained, and the battery 13 of the own device is discharged by the amount of the discharge amount. Thereby, the battery of the other portable electronic device 2 is charged by the amount of discharge from the battery 13 of the portable electronic device 1. On the contrary, when it is decided to charge the battery 13 of its own device with the electric power from the battery of the other portable electronic device 2, the portable electronic device 1 determines the remaining capacity of the battery 13 of its own device and the other portable type. Based on the remaining capacity of the battery of the electronic device 2, the amount of charge to the battery 13 of its own device is obtained, and the battery of its own device is used by the amount of charge using the power supplied from the other portable electronic device 2. 13 is charged. Thereby, the battery 13 of the portable electronic device 1 is charged by the amount of charge.

なお、本実施形態の携帯型電子装置１が例えば携帯電話端末である場合、上記電力量コイル１１と情報伝送用コイル２１が配される場所としては、例えば当該携帯電話端末のディスプレイやテンキーが設けられている主面部に相対応する背面部側筐体内等を挙げることができる。また、本実施形態の他の携帯型電子装置２が例えばノート型パーソナルコンピュータである場合、上記電力用コイル１１と情報伝送用コイル２１が配される場所は、当該ノート型パーソナルコンピュータの液晶ディスプレイ部の横枠筐体内等を挙げることができる。この場合において、例えば携帯電話端末の背面部側筐体がノート型パーソナルコンピュータの液晶ディスプレイの上記横枠筐体上に近接配置されたときに、それら携帯電話端末とノート型パーソナルコンピュータとの間で充放電の判定と実際の充放電等が行われることになる。   When the portable electronic device 1 of the present embodiment is a mobile phone terminal, for example, the place where the power amount coil 11 and the information transmission coil 21 are arranged is, for example, a display or numeric keypad of the mobile phone terminal. For example, the inside of the back side housing corresponding to the main surface portion. Further, when the other portable electronic device 2 of the present embodiment is, for example, a notebook personal computer, the place where the power coil 11 and the information transmission coil 21 are arranged is a liquid crystal display unit of the notebook personal computer. And the like in the horizontal frame housing. In this case, for example, when the back side housing of the mobile phone terminal is placed close to the horizontal frame housing of the liquid crystal display of the notebook personal computer, between the mobile phone terminal and the notebook personal computer. Charging / discharging determination and actual charging / discharging are performed.

〔充放電時の動作説明〕
以下、上述したように、携帯型電子装置１が他の携帯型電子装置２との近接を検知し、当該他の携帯型電子装置２との間でバッテリ１３の残容量の情報送受信を行い、充放電を行うのか或いは行わないのか、さらに充放電を行うことにした場合には何れをどの程度行うかを決定した後、実際に充放電を行うまでの詳細な動作を、図２と図３を用いて説明する。 [Explanation of operation during charging and discharging]
Hereinafter, as described above, the portable electronic device 1 detects the proximity of the portable electronic device 2 and performs information transmission / reception of the remaining capacity of the battery 13 with the other portable electronic device 2. FIG. 2 and FIG. 3 show the detailed operation until the actual charging / discharging after determining whether or not to perform charging / discharging, and when charging / discharging is performed. Will be described.

図２において、携帯型電子装置１の制御部１０は、ステップＳ１の処理として、常時或いは一定時間毎に、残容量検知部１４が検知した残容量のデータを取り込むことで、自機のバッテリ１３の残容量を把握している。また制御部１０は、ステップＳ２の処理として、上述したように他の携帯型電子装置２が近接したか否かを判定しており、近接を検知していない間はステップＳ１とステップＳ２の処理を繰り返す。一方、ステップＳ２にて近接を検知した場合、制御部１０は、ステップＳ３へ処理を進める。   In FIG. 2, the control unit 10 of the portable electronic device 1 captures the remaining capacity data detected by the remaining capacity detection unit 14 at all times or at regular intervals as the process of step S <b> 1. Knowing the remaining capacity of In addition, as described above, the control unit 10 determines whether or not another portable electronic device 2 has approached as described above, and the processing of steps S1 and S2 is performed while proximity is not detected. repeat. On the other hand, when proximity is detected in step S2, the control unit 10 advances the process to step S3.

ステップＳ３の処理に進むと、制御部１０は、前述したように、自機のバッテリ１３の残容量の情報を相手方の携帯型電子装置２へ送信し、また、携帯型電子装置２のバッテリの残容量の情報を受信する。このステップＳ３の処理の後、制御部１０は、ステップＳ４へ処理を進める。   When the process proceeds to step S3, as described above, the control unit 10 transmits the remaining capacity information of the battery 13 of the own device to the portable electronic device 2 of the other party, and also the battery of the portable electronic device 2 Receive information on remaining capacity. After the process of step S3, the control unit 10 advances the process to step S4.

ステップＳ４の処理に進むと、制御部１０は、相手方の携帯型電子装置２のバッテリの残容量よりも、自機のバッテリ１３の残容量の方が少ないか否か判定する。制御部１０は、当該ステップＳ４の判定において、自機のバッテリ１３の残容量の方が相手方バッテリの残容量よりも少ないと判定した場合にはステップＳ５以降へ処理を進め、一方、相手方バッテリの残容量よりも自機のバッテリ１３の残容量の方が多いと判定した場合にはステップＳ１０以降へ処理を進める。   When the processing proceeds to step S4, the control unit 10 determines whether or not the remaining capacity of the battery 13 of the own device is smaller than the remaining capacity of the battery of the counterpart portable electronic device 2. When it is determined in step S4 that the remaining capacity of the battery 13 of the own device is less than the remaining capacity of the counterpart battery, the control unit 10 proceeds to step S5 and the subsequent steps. If it is determined that the remaining capacity of the battery 13 is larger than the remaining capacity, the process proceeds to step S10 and subsequent steps.

ステップＳ４にて自機のバッテリ１３の残容量の方が相手方バッテリの残容量よりも少ないと判定されてステップＳ５の処理に進んだ場合、制御部１０は、自機のバッテリ１３の残容量が、図２に示す３つの領域の何れに入っているかを判定する。すなわち、制御部１０は、残容量検知部１４にて検知されたバッテリ１３の残容量が、図２の充電不要領域内に入っているか、或いは、放電不可領域内に入っているか、充放電可能領域内に入っているのかを判定する。ここで、図２の充電不要領域とは、自機のバッテリ１３が略々満充電に近いために敢えて充電をする必要が無い領域である。図２の放電不可領域とは、自機のバッテリ１３の残容量が少なくなってきているため、他の携帯型電子装置２のバッテリを充電させるために自機のバッテリ１３から放電させることまでは行うべきではないことを表す領域である。図２の充放電可能領域は、充電不要領域と充電不可領域の中間の領域であり、充電と放電の何れも可能な領域である。なお、この領域判定は、他の携帯型電子装置２との近接検知前に行われていても良い。このステップＳ５の処理の場合、制御部１０は、自機のバッテリ１３の残容量が充電不要領域か否かを判定し、充電不要領域であると判定した場合には処理を終了する。つまりこの場合、ステップＳ４にて自機のバッテリ１３の残容量の方が相手方バッテリの残容量よりも少ないと判定されたとしても、当該自機のバッテリ１３の残容量は充分あるため、これ以上充電をすることなく処理を終了する。一方、ステップＳ５にて充電不要領域でないと判定した場合、制御部１０はステップＳ６へ処理を進める。   If it is determined in step S4 that the remaining capacity of the battery 13 of the own device is smaller than the remaining capacity of the counterpart battery and the process proceeds to step S5, the control unit 10 determines that the remaining capacity of the battery 13 of the own device is Then, it is determined which of the three areas shown in FIG. That is, the control unit 10 can charge / discharge whether the remaining capacity of the battery 13 detected by the remaining capacity detection unit 14 is in the charge unnecessary area of FIG. Determine if it is in the area. Here, the charge unnecessary area in FIG. 2 is an area where it is not necessary to charge the battery 13 because its own battery 13 is almost fully charged. The non-dischargeable region in FIG. 2 means that the remaining capacity of the battery 13 of the own device is decreasing, and therefore until the battery 13 of the own device is discharged to charge the battery of another portable electronic device 2. It is an area indicating what should not be done. The chargeable / dischargeable area in FIG. 2 is an intermediate area between the charge unnecessary area and the nonchargeable area, and is an area where both charging and discharging are possible. This region determination may be performed before proximity detection with another portable electronic device 2 is performed. In the case of the process of step S5, the control unit 10 determines whether or not the remaining capacity of the battery 13 of the own device is a charge unnecessary area, and ends the process when it is determined that it is a charge unnecessary area. That is, in this case, even if it is determined in step S4 that the remaining capacity of the battery 13 of the own device is smaller than the remaining capacity of the counterpart battery, the remaining capacity of the battery 13 of the own device is sufficient. The process ends without charging. On the other hand, when it determines with it not being a charge unnecessary area | region in step S5, the control part 10 advances a process to step S6.

ステップＳ６の処理に進むと、制御部１０は、既に得られている自機のバッテリ１３の残容量と、相手方の携帯型電子装置２のバッテリの残容量とから、自機のバッテリ１３への充電量を求める。このステップＳ６の処理後、制御部１０は、ステップＳ７へ処理を進める。   When the process proceeds to step S6, the control unit 10 determines whether or not the remaining capacity of the battery 13 of the own device and the remaining capacity of the battery of the portable electronic device 2 of the other party are transferred to the battery 13 of the own device. Find the amount of charge. After the process of step S6, the control unit 10 advances the process to step S7.

ステップＳ７の処理に進むと、制御部１０は、スイッチ１７をオン制御すると共にパワーアンプ１２をオフ制御することで、電力用コイル１１を介して他の携帯型電子装置２から供給された電力により、バッテリ１３を充電させる。   When the process proceeds to step S7, the control unit 10 controls the switch 17 to be turned on and the power amplifier 12 to be turned off, so that the power supplied from the other portable electronic device 2 through the power coil 11 is controlled. The battery 13 is charged.

そして、制御部１０は、ステップＳ８の処理として、自機のバッテリ１３への充電量は、ステップＳ６で求めた計算値に達したか否か判定し、達したときにはステップＳ９にてスイッチ１７をオフさせて充電を停止させる。   Then, in step S8, the control unit 10 determines whether or not the charge amount of the battery 13 of the own device has reached the calculated value obtained in step S6, and when it reaches, the switch 17 is turned on in step S9. Turn off to stop charging.

一方、ステップＳ４にて自機のバッテリ１３の残容量の方が相手方バッテリの残容量よりも多いと判定した場合されてステップＳ１０の処理に進んだ場合、制御部１０は、自機のバッテリ１３の残容量が、図２に示す３つの領域の何れに入っているかを判定する。なおこの領域判定は、他の携帯型電子装置２との近接検知前に行われていても良い。このステップＳ１０の処理の場合、制御部１０は、自機のバッテリ１３の残容量が充電不可領域か否かを判定し、充電不可領域であると判定した場合には処理を終了する。つまりこの場合、ステップＳ４にて自機のバッテリ１３の残容量の方が相手方バッテリの残容量よりも多いと判定されたとしても、当該自機のバッテリ１３の残容量が少ないため、他の携帯型電子装置２のバッテリを充電させるために自機のバッテリ１３から放電させることまでは行うべきではないと判断し、処理を終了する。一方、ステップＳ１０にて充電不可領域でないと判定した場合、制御部１０はステップＳ１１へ処理を進める。   On the other hand, if it is determined in step S4 that the remaining capacity of the battery 13 of the own device is larger than the remaining capacity of the counterpart battery and the process proceeds to step S10, the control unit 10 determines that the battery 13 of the own device 13 It is determined which of the three areas shown in FIG. This region determination may be performed before proximity detection with another portable electronic device 2 is performed. In the case of the process of step S10, the control unit 10 determines whether or not the remaining capacity of the battery 13 of the own device is in a non-chargeable area. That is, in this case, even if it is determined in step S4 that the remaining capacity of the battery 13 of the own device is larger than the remaining capacity of the counterpart battery, the remaining capacity of the battery 13 of the own device is small. It is determined that it should not be performed until the battery 13 of its own device is discharged in order to charge the battery of the electronic device 2, and the process is terminated. On the other hand, when it determines with it not being a charge impossible area | region in step S10, the control part 10 advances a process to step S11.

ステップＳ１１の処理に進むと、制御部１０は、既に得られている自機のバッテリ１３の残容量と、相手方の携帯型電子装置２のバッテリの残容量とから、自機のバッテリ１３からの放電量を求める。このステップＳ１１の処理後、制御部１０は、ステップＳ１２へ処理を進める。   When the process proceeds to step S11, the control unit 10 determines from the own battery 13 based on the remaining capacity of the battery 13 of the own device and the remaining capacity of the battery of the portable electronic device 2 of the other party. Obtain the discharge amount. After the process of step S11, the control unit 10 advances the process to step S12.

ステップＳ１２の処理に進むと、制御部１０は、スイッチ１７をオン制御すると共にパワーアンプ１２をオン制御することで、自機のバッテリ１３を放電させ、電力用コイル１１を介して他の携帯型電子装置２へ電力を供給して当該他の携帯型電子装置２のバッテリを充電させる。   In step S12, the control unit 10 controls the switch 17 to be turned on and the power amplifier 12 to be turned on, thereby discharging the battery 13 of the own device and the other portable type via the power coil 11. Electric power is supplied to the electronic device 2 to charge the battery of the other portable electronic device 2.

そして、制御部１０は、ステップＳ１３の処理として、自機のバッテリ１３からの放電量は、ステップＳ１１で求めた計算値に達したか否か判定し、達したときにはステップＳ１４にてスイッチ１７をオフさせると共にパワーアンプ１２もオフ制御して放電を停止させる。   Then, as a process of step S13, the control unit 10 determines whether or not the discharge amount from the battery 13 of the own machine has reached the calculated value obtained in step S11, and when it reaches, the switch 17 is turned on in step S14. At the same time, the power amplifier 12 is also turned off to stop the discharge.

〔まとめ〕
以上説明したように、本発明の実施形態においては、近接された二つの携帯型電子装置間で、一つの情報伝送用コイル２１を用いてバッテリの残容量の情報を送受信し、その残容量の情報に基づいて一方が放電して他方が充電するか、或いは充放電を行わないかを判定し、充放電を行うときには一つの電力用コイル１１を使用して充電又は放電を行うようにしている。すなわち、本発明の実施形態によれば、例えば専用の充電装置が無い環境下へ複数の携帯型電子装置を持ち出して使用するような場合においても、何れか一つの携帯型電子装置のバッテリに充分な残容量があれば、当該充分なバッテリ残容量を有する携帯型電子装置から、充分なバッテリ残容量が無い携帯型電子装置へ電力を供給してバッテリを充電可能となされているため、バッテリ残容量がなくなった携帯型電子装置を使用可能にすることができる。 [Summary]
As described above, in the embodiment of the present invention, information on the remaining capacity of the battery is transmitted and received between two adjacent portable electronic devices using one information transmission coil 21, and the remaining capacity of the remaining capacity is determined. Based on the information, it is determined whether one is discharged and the other is charged, or charging / discharging is not performed. When charging / discharging is performed, one power coil 11 is used for charging or discharging. . That is, according to the embodiment of the present invention, for example, even when a plurality of portable electronic devices are taken out and used in an environment where there is no dedicated charging device, the battery of any one portable electronic device is sufficient. If there is a sufficient remaining capacity, the battery can be charged by supplying power from the portable electronic device having the sufficient remaining battery capacity to the portable electronic device having no sufficient remaining battery capacity. A portable electronic device with no capacity can be made available.

なお、上述した実施形態の説明は、本発明の一例である。このため、本発明は上述した実施形態に限定されることなく、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能であることはもちろんである。   The above description of the embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made according to the design or the like as long as the technical idea according to the present invention is not deviated.

例えば、携帯型電子装置１は、他の携帯型電子装置２が近接したかどうかを、例えば、バッテリ１３と電力用コイル１１の間の電圧変動に基づいて検知するものであっても良い。すなわち例えば、携帯型電子装置１の電力用コイル１１が他の携帯型電子装置２の電力用コイル１１と近接した場合、それら二つの電力用コイル１１間のカップリングにより、バッテリ１３と電力用コイル１１の間で電圧変動が発生することになる。言い換えると、携帯型電子装置１は、当該電圧変動を検出したとき、他の携帯型電子装置２が近接したと判断することができることになる。当該電圧変動に基づく近接判定を行う場合、例えば、バッテリ１３と電力用コイル１１の間に、例えばダイオードからなる電圧検出手段を設け、その電圧検出手段にて検出されている電圧値をＡ／Ｄ変換器によりディジタル値に変換して制御部１０へ送る。そして、制御部１０は、Ａ／Ｄ変換器からのディジタル値、つまり電圧検出手段にて検出された電圧値が急激に変動したことを検出したとき、他の携帯型電子装置２が近接したことを検知する。   For example, the portable electronic device 1 may detect whether another portable electronic device 2 is in proximity based on, for example, voltage fluctuation between the battery 13 and the power coil 11. That is, for example, when the power coil 11 of the portable electronic device 1 is close to the power coil 11 of another portable electronic device 2, the battery 13 and the power coil are coupled by coupling between the two power coils 11. A voltage fluctuation will occur between 11. In other words, the portable electronic device 1 can determine that another portable electronic device 2 has approached when the voltage fluctuation is detected. When the proximity determination based on the voltage fluctuation is performed, for example, a voltage detection unit made of, for example, a diode is provided between the battery 13 and the power coil 11, and the voltage value detected by the voltage detection unit is set to A / D. It is converted into a digital value by a converter and sent to the control unit 10. Then, when the control unit 10 detects that the digital value from the A / D converter, that is, the voltage value detected by the voltage detecting means has suddenly changed, the other portable electronic device 2 has come close. Is detected.

また、携帯型電子装置１は、例えば、自機の電力用コイル１１と他の携帯型電子装置２の電力用コイル１１とが近接した場合における、それら二つの電力用コイル１１間のカップリングによる電圧差から、他の携帯型電子装置２のバッテリの残容量を推定するものであっても良い。   Further, the portable electronic device 1 is based on, for example, coupling between the two power coils 11 when the power coil 11 of its own device and the power coil 11 of another portable electronic device 2 are close to each other. The remaining battery capacity of another portable electronic device 2 may be estimated from the voltage difference.

本実施形態の携帯型電子装置は、携帯電話端末やＰＤＡ、ノート型パーソナルコンピュータに限定されず、例えば携帯型のディジタルテレビジョン受像機やカーナビゲーション装置などに適用可能であり、さらにはキーボード、コンピュータマウスなどＵＳＢ（Universal Serial Bus）等を経由して電力を供給可能なものにも適用可能である。   The portable electronic device of the present embodiment is not limited to a mobile phone terminal, a PDA, or a notebook personal computer, and can be applied to, for example, a portable digital television receiver or a car navigation device, and further, a keyboard, a computer The present invention can also be applied to devices that can supply power via a USB (Universal Serial Bus) such as a mouse.

本発明実施形態の携帯型電子装置の主要部の構成を示すブロック回路図である。It is a block circuit diagram which shows the structure of the principal part of the portable electronic device of this invention embodiment. 二つの携帯型電子装置が近接した際の充放電動作を説明するためのフローチャートである。It is a flowchart for demonstrating charging / discharging operation | movement when two portable electronic devices adjoin. バッテリ残容量と充放電の要否との関係説明に用いる図である。It is a figure used for description of the relationship between a battery remaining capacity and the necessity of charging / discharging.

符号の説明Explanation of symbols

１，２ 携帯型電子装置、１０ 制御部、１１ 電力用コイル、１２，２４ パワーアンプ、１３ バッテリ、１４ 残容量検知部、１５，２７ Ａ／Ｄ変換器、１７ スイッチ、２１ 情報伝送用コイル、２２，２３ 切換スイッチ、２５ Ｄ／Ａ変換器、２６ ローノイズアンプ、２９ 筐体   1, 2 portable electronic device, 10 control unit, 11 power coil, 12, 24 power amplifier, 13 battery, 14 remaining capacity detection unit, 15, 27 A / D converter, 17 switch, 21 information transmission coil, 22, 23 selector switch, 25 D / A converter, 26 low noise amplifier, 29 housing

Claims (8)

充放電可能な自機バッテリと、
上記自機バッテリの残容量を検知する自機バッテリ残容量検知手段と、
他の機器が近接したことを検知する近接検知手段と、
上記近接検知手段にて近接検知されている上記他の機器が有する相手方バッテリの残容量を検知する相手方バッテリ残容量検知手段と、
上記他の機器との間で非接触状態にて電力の伝送を行うための電力伝送手段と、
上記自機バッテリが放電した電力を上記電力伝送手段から外部へ出力する状態と、上記電力伝送手段を介して外部から入力された電力を上記自機バッテリへ充電する状態とを切り換える機能を備えた充放電切換手段と、
上記近接検知手段にて上記他の機器の近接が検知されているときに、上記自機バッテリ残容量検知手段が検知した上記自機バッテリの残容量と、上記相手方バッテリ残容量検知手段が検知した上記相手方バッテリの残容量とに基づいて、上記充放電切換手段の切り換え状態を制御することにより、上記自機バッテリの充電又は放電を制御する充放電制御手段とを有する
ことを特徴とする携帯型電子装置。 A self-chargeable battery,
Own battery remaining capacity detecting means for detecting the remaining capacity of the own battery;
Proximity detection means for detecting the proximity of other devices,
The other battery remaining capacity detection means for detecting the remaining capacity of the other battery possessed by the other device whose proximity is detected by the proximity detection means;
Power transmission means for transmitting power in a non-contact state with the other devices;
A function of switching between a state in which the power discharged from the own battery is output from the power transmission means to the outside and a state in which the power input from the outside through the power transmission means is charged to the own battery is provided. Charge / discharge switching means;
When the proximity detection unit detects the proximity of the other device, the own battery remaining capacity detected by the own battery remaining capacity detection unit and the other battery remaining capacity detection unit detected Charge / discharge control means for controlling charging or discharging of the own battery by controlling the switching state of the charge / discharge switching means based on the remaining capacity of the counterpart battery. Electronic equipment. 請求項１記載の携帯型電子装置であって、
上記充放電制御手段は、上記自機バッテリ残容量検知手段が検知した上記自機バッテリの残容量と、上記相手方バッテリ残容量検知手段が検知した上記相手方バッテリの残容量とに基づいて、上記自機バッテリの充電量又は放電量を求め、その充電量又は放電量に応じて、上記充放電切換手段の切り換え状態を制御することを特徴とする携帯型電子装置。 The portable electronic device according to claim 1,
The charge / discharge control means is configured to determine the self battery based on the remaining capacity of the own battery detected by the own battery remaining capacity detecting means and the remaining capacity of the opposite battery detected by the opposite battery remaining capacity detecting means. A portable electronic device characterized in that a charge amount or a discharge amount of a battery is obtained and a switching state of the charge / discharge switching means is controlled in accordance with the charge amount or the discharge amount. 請求項１記載の携帯型電子装置であって、
上記他の機器との間で非接触状態にて情報の伝送を行うための情報伝送手段を有し、
上記近接検知手段が上記他の機器の近接を検知したとき、上記相手方バッテリ残容量検知手段は、上記他の機器から送信された上記相手方バッテリの残容量の情報を上記情報伝送手段を介して受信することにより当該相手方バッテリの残容量を検知し、
上記近接検知手段が上記他の機器の近接を検知したとき、上記自機バッテリ残容量検知手段は、上記検知した自機バッテリの残容量の情報を、上記情報伝送手段を介して上記他の機器へ送信することを特徴とする携帯型電子装置。 The portable electronic device according to claim 1,
Having information transmission means for transmitting information in a non-contact state with the other devices;
When the proximity detection means detects the proximity of the other device, the counterpart battery remaining capacity detection means receives the information on the remaining capacity of the counterpart battery transmitted from the other device via the information transmission means. To detect the remaining capacity of the other party battery,
When the proximity detection unit detects the proximity of the other device, the own battery remaining capacity detection unit transmits the detected remaining battery information of the own device via the information transmission unit. A portable electronic device characterized by transmitting to 請求項１記載の携帯型電子装置であって、
上記充放電切換手段は、上記自機バッテリの電力を電力伝送手段から外部へ出力しない状態と、電力伝送手段を介して外部から入力された電力を自機バッテリへ充電しない状態とを切り換える機能をも有し、
上記近接検知手段にて上記他の機器の近接が検知されているとき、上記充放電制御手段は、
上記自機バッテリの残容量が、当該自機バッテリへの充電が不要な第１の領域内か、当該バッテリの放電と充電の何れも可能な第２の領域内か、当該バッテリからの放電を許可しない第３の領域内の何れであるかを判定し、
上記自機バッテリの残容量が上記第１の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリが放電した電力を上記電力伝送手段から外部へ出力する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第１の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して外部から入力された電力を上記自機バッテリへ充電しない切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第２の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリが放電した電力を上記電力伝送手段から外部へ出力する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第２の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して外部から入力された電力を上記自機バッテリへ充電する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第３の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリの電力を電力伝送手段から外部へ出力しない切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第３の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して外部から入力された電力を上記自機バッテリへ充電する切り換え状態に上記充放電切換手段を制御することを特徴とする携帯型電子装置。 The portable electronic device according to claim 1,
The charge / discharge switching means has a function of switching between a state in which the power of the own battery is not output from the power transmission means to the outside and a state in which the power input from the outside via the power transmission means is not charged to the own battery. Also has
When the proximity of the other device is detected by the proximity detector, the charge / discharge controller is
Whether the remaining capacity of the own battery is in the first area where charging of the own battery is unnecessary, or in the second area where both discharging and charging of the battery are possible, or discharging from the battery Determine which is in the third area not allowed,
When the remaining capacity of the own battery is within the first region and the remaining capacity of the counterpart battery is less than the remaining capacity of the own battery, the power discharged by the own battery is Controlling the charge / discharge switching means to a switching state in which the power transmission means outputs to the outside,
When the remaining capacity of the own battery is within the first area, and the remaining capacity of the counterpart battery is larger than the remaining capacity of the own battery, an external input is made via the power transmission means. Controlling the charge / discharge switching means in a switching state in which the electric power thus charged is not charged to the own battery,
When the remaining capacity of the own battery is within the second region and the remaining capacity of the counterpart battery is less than the remaining capacity of the own battery, the power discharged by the own battery is Controlling the charge / discharge switching means to a switching state in which the power transmission means outputs to the outside,
When the remaining capacity of the own battery is within the second area and the remaining capacity of the counterpart battery is larger than the remaining capacity of the own battery, an external input is made via the power transmission means. Controlling the charge / discharge switching means to a switching state for charging the battery to the own battery,
When the remaining capacity of the own battery is within the third region and the remaining capacity of the counterpart battery is smaller than the remaining capacity of the own battery, the power of the own battery is transmitted as power. Controlling the charge / discharge switching means in a switching state in which the output is not output from
When the remaining capacity of the own battery is within the third region and the remaining capacity of the counterpart battery is larger than the remaining capacity of the own battery, the external battery is input from the outside via the power transmission means. A portable electronic device, wherein the charge / discharge switching means is controlled in a switching state in which the charged electric power is charged into the own battery. 充放電可能な自機バッテリと、
上記自機バッテリの残容量を検知する自機バッテリ残容量検知手段と、
相手方機器が近接したことを検知する近接検知手段と、
上記近接検知手段にて近接検知されている上記相手方機器が有する相手方バッテリの残容量を検知する相手方バッテリ残容量検知手段と、
上記相手方機器との間で非接触状態にて電力の伝送を行うための電力伝送手段と、
上記自機バッテリが放電した電力を上記電力伝送手段から外部へ出力して上記相手方機器の相手方バッテリへ充電させる状態と、上記電力伝送手段を介して上記相手方機器から入力された電力を上記自機バッテリへ充電する状態とを切り換える機能を備えた充放電切換手段と、
上記近接検知手段にて上記相手方機器の近接が検知されているときに、上記自機バッテリ残容量検知手段が検知した上記自機バッテリの残容量と、上記相手方バッテリ残容量検知手段が検知した上記相手方バッテリの残容量とに基づいて、上記充放電切換手段の切り換え状態を制御することにより、上記自機バッテリの充電又は放電を制御する充放電制御手段とを、
それぞれが備えた少なくとも二以上の携帯型電子装置からなる電力伝送システム。 A self-chargeable battery,
Own battery remaining capacity detecting means for detecting the remaining capacity of the own battery;
Proximity detection means for detecting the proximity of the counterpart device,
The other party battery remaining capacity detection means for detecting the remaining capacity of the other party battery possessed by the other party device whose proximity is detected by the proximity detection means;
Power transmission means for transmitting power in a non-contact state with the counterpart device;
A state in which the electric power discharged from the own battery is output from the power transmission means to the outside and the counterpart battery of the counterpart device is charged, and the power input from the counterpart device via the power transmission means is Charge / discharge switching means having a function of switching the state of charging the battery;
When the proximity detection unit detects the proximity of the counterpart device, the own battery remaining capacity detected by the own battery remaining capacity detection unit and the other battery remaining capacity detection unit detected Based on the remaining capacity of the counterpart battery, by controlling the switching state of the charging / discharging switching means, charging / discharging control means for controlling charging or discharging of the own battery,
A power transmission system comprising at least two portable electronic devices provided in each. 請求項５記載の電力伝送システムであって、
上記各携帯型電子装置の充放電制御手段は、上記自機バッテリ残容量検知手段が検知した自機バッテリの残容量と、上記相手方バッテリ残容量検知手段が検知した上記相手方バッテリの残容量とに基づいて、上記自機バッテリの充電量又は放電量を求め、その充電量又は放電量に応じて、上記充放電切換手段の切り換え状態を制御することを特徴とする電力伝送システム。 The power transmission system according to claim 5,
The charge / discharge control means of each portable electronic device includes a remaining capacity of the own battery detected by the own battery remaining capacity detecting means and a remaining capacity of the opposite battery detected by the opposite battery remaining capacity detecting means. An electric power transmission system characterized in that the charge amount or discharge amount of the battery is calculated based on the charge amount and the switching state of the charge / discharge switching means is controlled according to the charge amount or discharge amount. 請求項５記載の電力伝送システムであって、
上記各携帯型電子装置は、上記相手方機器との間で非接触状態にて情報の伝送を行うための情報伝送手段を有し、
上記近接検知手段が上記相手方機器の近接を検知したとき、上記各携帯型電子装置の上記相手方バッテリ残容量検知手段は、上記相手方機器から送信された上記相手方バッテリの残容量の情報を上記情報伝送手段を介して受信することにより当該相手方バッテリの残容量を検知し、
上記近接検知手段が上記相手方機器の近接を検知したとき、上記各携帯型電子装置の上記自機バッテリ残容量検知手段は、上記検知した自機バッテリの残容量の情報を、上記情報伝送手段を介して上記相手方機器へ送信することを特徴とする携帯型電子装置。 The power transmission system according to claim 5,
Each of the portable electronic devices has information transmission means for transmitting information in a non-contact state with the counterpart device,
When the proximity detection means detects the proximity of the counterpart device, the counterpart battery remaining capacity detection means of each portable electronic device transmits the information on the remaining capacity of the counterpart battery transmitted from the counterpart device to the information transmission. The remaining capacity of the other party battery is detected by receiving through the means,
When the proximity detection means detects the proximity of the counterpart device, the own battery remaining capacity detection means of each portable electronic device uses the detected information on the remaining capacity of the own battery as the information transmission means. And transmitting to the counterpart device via the portable electronic device. 請求項５記載の電力伝送システムであって、
上記各携帯型電子装置の充放電切換手段は、上記自機バッテリの電力を電力伝送手段から相手方機器へ出力しない状態と、電力伝送手段を介して相手方機器から入力された電力を自機バッテリへ充電しない状態とを切り換える機能をも有し、
上記近接検知手段にて上記相手方機器の近接が検知されているとき、上記各携帯型電子装置の充放電制御手段は、
上記自機バッテリの残容量が、当該自機バッテリへの充電が不要な第１の領域内か、当該バッテリの放電と充電の何れも可能な第２の領域内か、当該バッテリからの放電を許可しない第３の領域内の何れであるかを判定し、
上記自機バッテリの残容量が上記第１の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリが放電した電力を上記電力伝送手段から上記相手方機器へ出力する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第１の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して上記相手方機器から入力された電力を上記自機バッテリへ充電しない切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第２の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリが放電した電力を上記電力伝送手段から上記相手方機器へ出力する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第２の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して上記相手方機器から入力された電力を上記自機バッテリへ充電する切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第３の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が少ないときには、上記自機バッテリの電力を電力伝送手段から相手方機器へ出力しない切り換え状態に上記充放電切換手段を制御し、
上記自機バッテリの残容量が上記第３の領域内である場合に、上記自機バッテリの残容量よりも上記相手方バッテリの残容量の方が多いときには、上記電力伝送手段を介して上記相手方機器から入力された電力を上記自機バッテリへ充電する切り換え状態に上記充放電切換手段を制御することを特徴とする電力伝送システム。
The power transmission system according to claim 5,
The charge / discharge switching means of each of the portable electronic devices is in a state where the power of the own battery is not output from the power transmission means to the counterpart device, and the power input from the counterpart device via the power transmission means to the own battery. It also has a function to switch between not charging,
When proximity of the counterpart device is detected by the proximity detection means, the charge / discharge control means of each portable electronic device is:
Whether the remaining capacity of the own battery is in the first area where charging of the own battery is unnecessary, or in the second area where both discharging and charging of the battery are possible, or discharging from the battery Determine which is in the third area not allowed,
When the remaining capacity of the own battery is within the first region and the remaining capacity of the counterpart battery is less than the remaining capacity of the own battery, the power discharged by the own battery is Controlling the charge / discharge switching means in a switching state in which power is transmitted from the power transmission means to the counterpart device;
When the remaining capacity of the own battery is within the first area and the remaining capacity of the counterpart battery is larger than the remaining capacity of the own battery, the counterpart device is connected via the power transmission means. Controlling the charge / discharge switching means in a switching state in which the power input from the battery is not charged to the battery.
When the remaining capacity of the own battery is within the second region and the remaining capacity of the counterpart battery is less than the remaining capacity of the own battery, the power discharged by the own battery is Controlling the charge / discharge switching means in a switching state in which power is transmitted from the power transmission means to the counterpart device;
When the remaining capacity of the own battery is within the second area and the remaining capacity of the counterpart battery is larger than the remaining capacity of the own battery, the counterpart device is connected via the power transmission means. Controlling the charge / discharge switching means in a switching state for charging the battery input with the power input from
When the remaining capacity of the own battery is within the third region and the remaining capacity of the counterpart battery is smaller than the remaining capacity of the own battery, the power of the own battery is transmitted as power. Controlling the charge / discharge switching means to a switching state in which the output is not output to the counterpart device from
When the remaining capacity of the own battery is larger than the remaining capacity of the own battery when the remaining capacity of the own battery is within the third region, the counterpart device is connected via the power transmission means. A power transmission system, wherein the charge / discharge switching means is controlled in a switching state in which the power input from the battery is charged to the battery.
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