JP2008295191A - Non-contact charger and non-contact power transmission system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a portable terminal to execute non-contact charging without downloading unnecessary information, and a cradle to supply the charging power to the portable terminal without requiring calculation of electric fee and facilities and without being suffered from disadvantage. <P>SOLUTION: The charging power is transmitted contactlessly from the portable telephone terminal 2 to the cradle 1 by using a planar coil 10. Prior to power transmission to the portable telephone terminal 2, the cradle 1 authenticates the portable telephone terminal 2 through the planar coil 10 by using an information signal for permission authentication of transmission of charging power and that for permission authentication of data transmission to the portable telephone terminal 2, and if authentication is successfully performed, the cradle 1 transmits previously prepared distribution data in return for charging to the portable telephone terminal 2, and then, transmits the charging power to the portable telephone terminal 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a non-contact charging device that transmits electric power for charging a secondary battery built in a small and thin mobile terminal such as a mobile phone terminal by using electromagnetic induction, and its The present invention relates to a portable terminal that charges a secondary battery with electric power transmitted from a contactless charging device, and a contactless power transmission system including the contactless charging device and the portable terminal.

  2. Description of the Related Art Conventionally, there has been known a system that transmits, for example, charging power for charging a secondary battery built in a portable terminal using electromagnetic induction by a non-contact power transmission coil.

  Japanese Patent Application Laid-Open No. 2007-97331 (Patent Document 1) discloses a charging device and a charging system that perform contactless charging from a charging stand to a mobile phone using magnetic induction of a coil. A non-contact IC card unit is provided, and the charging base is provided with a non-contact IC card authentication unit and a telephone connection detection unit. When a mobile phone is placed on the charging base, the telephone connection detection unit supplies the IC card authentication unit power Is activated, whereby the IC card authenticating unit functions, authenticates whether the authentication object placed on the charging stand is a regular mobile phone, and if the authentication result is OK, When the primary side charging circuit is activated and the secondary battery is charged without contact via the secondary side charging circuit of the mobile phone, the charging operation is not performed when the authentication result is NG. Made Surgery is disclosed.

  In Japanese Patent Laid-Open No. 2005-57917 (Patent Document 2), a charging device for a mobile phone is provided on a platform of a station, for example, and a person waiting for a train sets a mobile phone on the charging device. The charging device can be charged, and a registration device in which distribution information such as store information and sightseeing information is registered in advance in the charging device, and the distribution information is stored in the mobile phone during the charging. A portable terminal charging system that can be downloaded to is disclosed. Note that Patent Document 2 also describes charging for using a charging service for a user of a charged mobile phone.

  Japanese Patent Laid-Open No. 2002-319893 (Patent Document 3) discloses a plurality of charging devices capable of charging a plurality of mobile phones and charging the charging device based on information exchange with the mobile phones. There is disclosed a mobile phone charging system including a charging control unit that starts and authenticates a mobile phone and charges the usage of the charging device (charging according to the amount used, usage time, etc.). In addition, this Patent Document 3 also discloses a technique for performing charging without exchanging information between the mobile phone and the charging control unit for a certain period of time until full-scale charging starts when the mobile phone has no battery capacity. It is disclosed.

JP 2007-97331 A (FIG. 1) Japanese Patent Laying-Open No. 2005-57917 (FIG. 1) JP 2002-319893 A (FIG. 1)

  By the way, recent cellular phone terminals have various functions such as a digital camera function, a music function, and a digital television reception function. On the other hand, various studies and developments have been made on increasing the capacity of the battery, but at present, the increase in power consumption due to the multi-functionality and high functionality of the mobile phone terminal is more than the increase in the capacity of the battery. It tends to exceed. For this reason, there is a concern that the battery will run out, for example, when away from home.

  Conventionally, as a method of dealing with a battery exhaustion when going out, a method of always carrying an AC adapter for charging, a connector, and a spare battery is taken. However, it is very burdensome for the user to always carry the charging AC adapter, the connector, and the spare battery.

  On the other hand, for example, in the case of a charging system using electromagnetic induction by a coil as described in Patent Document 1, it is possible to transmit power without contact, and thus there are various charging stands equipped with a coil, for example. If the environment prepared at the place is in place, charging can be performed simply by placing the mobile phone terminal on the charging stand, so the user can always carry the charging AC adapter, connector and spare battery, The mobile phone terminal can be charged on the go.

  However, when the user charges the mobile phone terminal while away from home, the side supplying the charging power to the user's mobile phone terminal must bear the electricity charge for the charging power. Of course, as described in Patent Document 2 and Patent Document 3 described above, it is charged for charging the mobile phone, or only power corresponding to a certain amount of electricity charge is charged to the mobile phone. Although it is possible, it is not easy to accurately calculate the electricity bill required to charge the mobile phone, and only the power corresponding to a certain amount of electricity bill is transmitted to the mobile phone for charging. In order to realize such things, appropriate equipment is required.

  Furthermore, Patent Document 2 discloses that distribution information such as store and sightseeing information is downloaded to a mobile phone terminal while charging the mobile phone, that is, in other words, charging power is supplied to the mobile phone terminal in exchange for downloading the distribution information. Although it is possible to supply, it is often the case that the user does not want unnecessary distribution information to be downloaded to the mobile phone terminal.

  The present invention has been proposed in view of such circumstances, and the charging power of the built-in secondary battery of the mobile terminal is transmitted in a contactless manner using electromagnetic induction, and the user side of the mobile terminal The mobile terminal can be charged without downloading unnecessary distribution information, etc. On the other hand, the side supplying the charging power to the mobile terminal does not require complicated calculation of electric charges or facilities, and supplies power. An object of the present invention is to provide a non-contact charging device, a portable terminal, and a non-contact power transmission system that can supply charging power to the portable terminal without suffering the disadvantages of the above.

  The non-contact charging apparatus of the present invention uses non-contact power transmission for non-contact transmission of power for charging a secondary battery of a portable terminal using electromagnetic induction via a coil formed by winding a linear conductor. Unit, an information communication unit for communicating information signals between the coil of the non-contact power transmission unit and a mobile terminal, permission authentication of charging power transmission to the mobile terminal, and permission of data distribution to the mobile terminal An authentication unit that authenticates the portable terminal using a predetermined authentication information signal for authentication, and at least distribution data prepared in advance for distribution to the portable terminal that can be authenticated by the authentication unit Control for transmitting from the information communication unit as an information signal to the mobile terminal authenticated by the mobile phone, and control for transmitting the charging power of the secondary battery from the non-contact power transmission unit to the mobile terminal authenticated by the authentication unit. Having a department Ri, to solve the problems described above.

  Further, the portable terminal of the present invention is a non-contact power transmission unit that receives power transmitted from the non-contact charging device using electromagnetic induction through a coil formed by winding a linear conductor, Information signals between the secondary battery, a charging control circuit that controls charging of the secondary battery with the power received through the coil of the non-contact power transmission unit, and the non-contact charging device through the coil of the non-contact power transmission unit An information communication unit for performing communication, and a predetermined authentication information signal for permission authentication of power transmission for charging and permission authentication of data distribution to the terminal as an information signal from the information communication unit to the contactless charging device By having a control unit that performs transmission control and a user interface unit that outputs distribution data received from the contactless charging device through at least the information communication unit, the above-described problems are solved.

  Also, the contactless power transmission system of the present invention is a contactless power transmission system for charging power for charging a secondary battery of a mobile terminal using electromagnetic induction via a coil formed by winding a linear conductor. A contact charging device, and a portable terminal for charging a secondary battery by receiving electric power transmitted from the non-contact charging device using electromagnetic induction via a coil formed by winding a linear conductor. The contactless charging device communicates information signals with the portable terminal through the coil, and performs predetermined authentication for authorization authentication of power transmission for charging to the portable terminal and authorization of data distribution to the portable terminal. Control that causes the mobile terminal to authenticate using the information signal for authentication, and sends distribution data prepared in advance for delivery to the authenticated mobile terminal as an information signal to the authenticated mobile terminal, and the authenticated mobile Secondary to terminal The portable terminal communicates information signals with the contactless charging device through the coil, and performs the authorization authentication of charging power transmission and the data distribution to its own terminal. By performing control to transmit a predetermined authentication information signal for authorization authentication as an information signal to the contactless charging device, and outputting at least distribution data received from the contactless charging device through the user interface unit, the above-mentioned Solve the problem.

  That is, according to the present invention, transmission of charging power from the contactless charging device to the portable terminal is performed in a contactless manner using electromagnetic induction, and data distribution from the contactless charging device to the portable terminal is permitted. This is performed based on an authentication information signal for authentication. Furthermore, the transmission of charging power from the contactless charging device to the mobile terminal is performed for the mobile terminal permitted to distribute data and in exchange for the data distribution.

  In the present invention, transmission of charging power from the non-contact charging device to the portable terminal is performed in a non-contact manner using electromagnetic induction, so that no AC adapter or connector is required for charging the portable terminal. Further, since data distribution from the contactless charging device to the portable terminal is performed based on an authentication information signal for authorization authentication, unnecessary distribution information is not downloaded to the user side of the portable terminal. In addition, transmission of charging power from the non-contact charging device to the portable terminal is performed for the portable terminal permitted to distribute data, and in addition to the data distribution, the charging power is supplied to the portable terminal. The contactless charging device side can supply charging power to the portable terminal without requiring complicated calculation of electric charges and facilities, and without suffering the disadvantages of power supply.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  In the present embodiment, for example, by electromagnetic induction using a non-contact power transmission coil formed by spirally winding a linear conductor made of a single wire, a stranded wire, or a planar conductor pattern in substantially the same plane. A contactless power transmission system that transmits battery charging power from a cradle side, which is an example of the contactless charging apparatus, to a mobile phone terminal, which is an example of the mobile terminal of the present invention, is taken as an example. Of course, the content described here is merely an example, and it goes without saying that the present invention is not limited to this example.

[Schematic configuration example of contactless power transmission system]
In FIG. 1, the example of 1 structure of the non-contact electric power transmission system of this embodiment is shown.

  In FIG. 1, the cradle 1 of the present embodiment is, for example, in a user's home such as in a store or restaurant, in an information center at a tourist destination, in a theater, in a museum, in an amusement park, or in a public facility. It is installed in various other places. The cradle 1 of the present embodiment includes an AC adapter 3 connected to a commercial power source, a power cord 12 that connects the AC adapter 3 and the main body of the cradle 1, and a linear shape composed of the above-described single wire, stranded wire, or planar conductor pattern. A contactless power transmission coil (hereinafter, referred to as a primary side planar coil 10) formed by winding a conductor spirally in substantially the same plane, to the mobile phone terminal 2 via the primary side planar coil 10. A control board unit 11 including a power transmission control circuit unit for performing contactless power transmission control, such as an external memory slot 5 into which the external memory 4 is inserted, is provided.

  In addition to the power transmission control circuit unit, the control board unit 11 of the cradle 1 of the present embodiment is used to authenticate a mobile terminal mounted on the terminal mounting table of the cradle 1 and its terminal user. The data stored in the authentication circuit unit and the internal memory or the external memory 4 is transmitted to the mobile phone terminal 2 through the primary side planar coil 10, or the data transmitted from the mobile phone terminal 2 side is transmitted to the primary side plane. A data communication circuit unit for receiving through the coil 10 is also provided.

  In this embodiment, the internal memory of the cradle 1 and the external memory 4 inserted into the external memory slot 5 store various data related to the place or facility where the cradle 1 is installed. ing. That is, in the internal memory or the external memory 4 of the cradle 1, for example, when the cradle 1 is installed in a store or restaurant, for example, advertisement information, coupon information, questionnaire information, etc. of the store or restaurant. In addition, when the store or restaurant side wants to distribute data to the terminal user, for example, when the cradle 1 is installed in the information center of the sightseeing spot, recommended spot information of the sightseeing spot Data such as information and questionnaire information that the tourist center wants to distribute to terminal users is stored, and similarly, the cradle 1 is installed in theaters, museums, amusement parks, public facilities, etc. If it has been done, each facility distributes to the terminal users, such as entertainment information and questionnaire information of each facility, etc. Data overlooking the bets are accumulated. In the present embodiment, these data are data transmitted from the cradle 1 side to the mobile phone terminal 2 in exchange for the supply of charging power to the mobile phone terminal 2. Will be referred to as charge exchange delivery data. The charge exchange delivery data is registered in the internal memory of the cradle 2 through a network such as a LAN or the Internet, or directly transmitted from the cradle 2 to the mobile phone terminal 2 through the network such as the LAN or the Internet without being stored in the internal memory. May be. The charge exchange delivery data is data that can be freely changed and rewritten by the cradle 1 installer.

  In addition, in the present embodiment, the AC adapter 3 may be built in the cradle 1. Although not shown in FIG. 1, the cradle 1 may include an input user interface unit such as a touch panel and a keyboard, and an output user interface unit such as a display and a speaker. Of course, the input user interface unit and the output user interface unit may be provided in the cradle 1 or may be connected to the cradle 1 via a cable or the like. In addition, the cradle 1 may have a shape of a general desktop holder for a mobile phone terminal, or may be integrated into a table or the like.

  The cellular phone terminal 2 of the present embodiment, in addition to various functions provided in a general cellular phone terminal, spirals a linear conductor composed of a single wire, a stranded wire, or a planar pattern in substantially the same plane. It has a contactless power transmission coil (hereinafter referred to as a secondary side planar coil) formed by turning, and receives power transmitted from the cradle 1 side using the secondary side planar coil. It has a function to charge the battery.

  In addition, the mobile phone terminal 2 of the present embodiment includes a function for authenticating the cradle 1 or the cradle 1 when the terminal is placed on the terminal mounting table of the cradle 1, and a built-in battery of the terminal. A data communication function is also provided for transmitting voltage data to the cradle 1 through the secondary planar coil and receiving data transmitted from the cradle 1 side through the secondary planar coil 2. Furthermore, when the mobile phone terminal 2 of the present embodiment receives the data sent from the cradle 1 side, the data is stored in the internal memory or the external memory as necessary, or the data is stored. Output in a form that can be recognized by the user, that is, when the received data is displayable data, for example, displayed on the built-in display, or when the received data is data that can be output by voice, for example It also has a function to output sound from the built-in speaker.

[Schematic configuration of mobile phone terminal and cradle and basic operation during charging]
In FIG. 2, the cross section of the schematic structure of the principal part relevant to the non-contact electric power transmission performed between the mobile telephone terminal 2 of this invention embodiment and the cradle 1 is shown.

  The mobile phone terminal 2 of the present embodiment includes at least a battery 16 that is a secondary battery that generates operating power of the terminal, and a secondary contactless power transmission coil on a power receiving side when the battery 16 is charged. A side plane coil 14 and a circuit board 15 on which various electronic circuits including a charge control circuit for supplying and charging the power received through the secondary side plane coil 14 to the battery 16 are mounted on the terminal casing. Provided inside the body. In the present embodiment, illustration and description of other components included in a general mobile phone terminal are omitted.

  The battery 16 is detachable. Accordingly, the mobile phone terminal 2 is provided with a battery lid 13 that is opened and closed (or attached / detached) when the battery 16 is attached / detached.

  The secondary planar coil 14 is a planar coil in which a conductive linear conductor is formed in a spiral shape, and one planar portion of the secondary planar coil 14 is formed inside the battery lid 13. For example, it is affixed on the wall surface or the outer surface of the battery 16 on the battery lid side. In the present embodiment, it is assumed that the secondary planar coil 14 is attached to the inner wall surface of the battery lid 13.

  On the other hand, the cradle 1 of the present embodiment includes at least a primary side planar coil 10 that is a contactless power transmission coil on the power transmission side when charging the battery 16 of the mobile phone terminal 2, and the primary side planar coil 10. A control board unit 11 that performs power supply and control thereof and a power cord 12 connected to the AC adapter 3 are provided. In addition, in this embodiment, illustration and description of other components provided in a general cradle are omitted.

  The primary planar coil 10 of the cradle 1 is a planar coil in which a linear conductor having conductivity is formed in a spiral shape, just like the secondary planar coil 14 of the mobile phone terminal 2. One planar portion of the primary planar coil 10 is affixed to the inner wall surface side of the planar terminal mounting table having a certain size provided in the cradle 1.

  In the control board unit 11, the mobile phone terminal 2 is placed on the terminal mounting base of the cradle 1, and the secondary side planar coil 14 of the mobile phone terminal 2 and the primary side planar coil 10 of the cradle 1 are arranged close to each other. As a result, when the state of the magnetic field in the primary planar coil 10 changes, it is possible to detect voltage fluctuations corresponding to the change in the state of the magnetic field. Then, the control board unit 11 sets the voltage value due to the voltage fluctuation according to the change in the state of the magnetic field in the primary planar coil 10 when the secondary planar coil 14 is arranged close to the predetermined voltage value set in advance. When it is detected that the mobile phone terminal 2 has been placed, the mobile phone terminal 2 is determined to have been placed on the terminal mounting table of the cradle 1.

  Similarly, in the charging control circuit of the mobile phone terminal 2 according to the present embodiment, the terminal is placed on the terminal mounting base of the cradle 1, and the secondary side planar coil 14 and the primary side planar coil 10 of the cradle 1 are arranged close to each other. As a result, when a change occurs in the state of the magnetic field in the secondary planar coil 14, voltage fluctuations corresponding to the change in the magnetic field state can be detected. Then, the charge control circuit of the mobile phone terminal 2 has a predetermined voltage value determined by voltage fluctuation according to a change in the state of the magnetic field in the secondary side planar coil 14 when the primary side planar coil 10 is disposed in proximity. When it is detected that the voltage value has reached, it is determined that the terminal is placed on the terminal mounting table of the cradle 1.

  In the present embodiment, the cradle 1 and the mobile phone terminal 2 can transmit information through the primary side planar coil 10 and the secondary side planar coil 14. For example, when the mobile phone terminal 2 is placed on the terminal mounting table of the cradle 1 and detects the close arrangement of the primary side coil 10 and the secondary side coil 14 based on the change in the state of the magnetic field as described above, The cradle 1 and the mobile phone terminal 2 exchange authentication signals for authenticating the other party by transmitting information via the primary planar coil 10 and the secondary planar coil 14.

  In the present embodiment, the cradle 1 and the mobile phone terminal 2 both detect that the primary coil 10 and the secondary coil 14 are disposed close to each other, and the cradle 1 and the mobile phone terminal 2 further each other. When the other party can be authenticated, power is transmitted from the cradle 1 as necessary, and the battery 16 of the mobile phone terminal 2 is charged by the transmitted power. In the case of the present embodiment, although details will be described later, the power for charging from the cradle 1 to the mobile phone terminal 2 is actually transmitted by the charge exchange delivery data (the advertisement information and coupon information described above). , Recommended spot information or event information) is transmitted to the mobile phone terminal 2 or when the transmission is permitted.

  When charging of the battery 16 of the mobile phone terminal 2 is actually started, the control board unit 11 of the cradle 1 converts the commercial AC voltage supplied through the power cord 12 into a predetermined DC voltage, and the DC An AC voltage having a predetermined frequency is generated using the voltage, the generated AC voltage is supplied to the primary planar coil 10, and the primary planar coil 10 is oscillated at a predetermined resonance frequency.

  On the other hand, when an AC voltage is induced in the secondary planar coil 14 by the oscillation of the primary planar coil 10 of the cradle 1, the cellular phone terminal 2 rectifies the induced AC voltage to a DC voltage. The battery 16 is charged by the DC voltage.

  Further, in the present embodiment, the control board unit 11 of the cradle 1 is used when the voltage value based on the state change of the magnetic field of the primary planar coil 10 does not reach a predetermined voltage value, or the primary planar coil Even when the voltage value based on the change in the state of the magnetic field 10 becomes a predetermined voltage value, if the other party cannot be authenticated by the authentication signal, the change in the state of the magnetic field of the primary planar coil 10 is, for example, a coin It is determined that a metal object such as the above and other conductive objects are generated by being placed on the terminal mounting table, and control is performed so that power supply to the primary side planar coil 10 is not performed.

  In the present embodiment, when the battery 16 of the mobile phone terminal 2 is charged by power transmission from the cradle 1, the primary planar coil 10 and the cradle 1 and the mobile phone terminal 2 are connected between the cradle 1 and the mobile phone terminal 2. Charging data is transmitted via the secondary planar coil 14. That is, when the battery 16 is being charged by power transmission from the cradle 1, the charging control circuit of the mobile phone terminal 2 transmits the charging data (for example, battery voltage data) of the battery 16 to the cradle 1. The control board unit 11 of the cradle 1 monitors the charging status of the battery 16 of the terminal 2 based on the charging data transmitted from the mobile phone terminal 2, and indicates that the charging of the battery 16 is not completed. If it is grasped by the above, the power transmission through the primary side planar coil 10 is continued. On the other hand, when it is grasped from the charging data that the charging of the battery 16 is completed, the power transmission is stopped. Do. In addition, the control board unit 11 performs control to stop power transmission even when information indicating some abnormality is supplied from the mobile phone terminal 2, for example. In the present embodiment, as described above, the power transmission from the cradle 1 is continued until the charging of the mobile phone terminal 2 is completed, and the details will be described later. It is also possible to transmit only electric power from the cradle 1 to the mobile phone terminal 2 or to transmit charging power from the cradle 1 to the mobile phone terminal 2 for a time corresponding to the amount of charge exchange delivery data. .

[Detailed internal circuit configuration of mobile phone terminal and cradle]
FIG. 3 shows a detailed internal circuit configuration of a main part related to contactless power transmission and data transmission in the cradle 1 and the mobile phone terminal 2 of the present embodiment.

  In FIG. 3, an internal circuit 20 on the cradle 1 side is included in the control board unit 11 of FIG. 2, and as main components, a power transmission control unit 22, a power transmission circuit 23, a primary side planar coil 10, and a CPU (Central processing unit) 31, internal memory 32 or external memory 33 (external memory 4 in FIG. 1), input user interface (I / F) unit 34, output user interface (I / F) unit 35, network interface (I / F) F) 36 and the like.

  The DC voltage from the AC adapter 3 shown in FIG. 1 is supplied to the power transmission circuit 23 via the power transmission control unit 22.

  The power transmission circuit 23 includes at least an oscillation circuit, a driver, and a resonance circuit. For example, the oscillation circuit generates a reference oscillation signal for transmitting charging power from the cradle 1 to the mobile phone terminal 2 and outputs the reference oscillation signal to the driver. The driver converts the DC voltage into an AC voltage having a predetermined frequency using a reference oscillation signal from the oscillation circuit under the control of the control circuit 25 of the power transmission control unit 22. The resonance circuit includes a capacitor and a switch, is connected to the primary side planar coil 10, and forms a resonance circuit by the capacitance of the capacitor and the inductance of the coil, and resonates according to the AC voltage from the driver. Thereby, the primary side planar coil 10 is oscillated at a predetermined resonance frequency. The power transmission circuit 23 also performs data transmission to the cellular phone terminal 2 by superimposing the data transmission modulation signal supplied from the control circuit 25 of the power transmission control unit 22 on the AC signal for power transmission.

  A voltage dividing resistor 24 is connected between the coil ends of the primary planar coil 10. The voltage dividing resistor 24 is provided to divide the voltage between both coil ends of the primary side planar coil 10 and send the divided output to the power transmission control unit 22.

  The power transmission control unit 22 includes a control circuit 25, a waveform detector 26, a voltage monitor 27, a temperature detector 28, and the like as main components.

  The waveform detector 26 of the power transmission control unit 22 is supplied with an output obtained by dividing the voltage appearing between both coil ends of the primary planar coil 10 by the voltage dividing resistor 24. The waveform detector 26 detects the signal waveform of the divided voltage output and outputs the detected waveform signal to the control circuit 25.

  When transmitting the charging power from the cradle 1 to the mobile phone terminal 2 side, the control circuit 25 controls the driver of the power transmission circuit 23, and the alternating current of the predetermined frequency is transferred from the driver to the primary side planar coil 10. Supply voltage.

  Further, the control circuit 25 is based on the detection waveform signal supplied through the voltage dividing resistor 24 and the waveform detector 26, that is, the detection waveform signal of the voltage waveform appearing between both coil ends of the primary side planar coil 10. The mobile phone terminal 2 is judged to approach or leave the terminal mounting table of the cradle 1. That is, the control circuit 25 detects the voltage fluctuation generated in the primary side planar coil 10 due to the approach and detachment of the mobile phone terminal 2 to and from the terminal mounting table by the detected waveform signal through the voltage dividing resistor 24 and the waveform detector 26. To do. Then, the control circuit 25 controls the supply and stop of the AC voltage from the driver 23 to the primary side planar coil 10 as necessary based on the detection of the approach and detachment of the mobile phone terminal 2 to the terminal mounting table. I do.

  The voltage monitor 27 monitors whether or not an abnormal voltage outside the specification is generated in the primary planar coil 10 or its occurrence is predicted based on the voltage value from the voltage dividing resistor 24, for example. When the voltage monitor 27 detects or predicts the occurrence of an abnormal voltage that is not specified, the voltage monitor 27 sends detection information to that effect to the control circuit 25.

  The temperature detector 28 detects whether the primary side planar coil 10 has an abnormal temperature outside the specified range based on a signal from a temperature sensor (thermistor) 30 provided near or inside the primary side planar coil 10, for example. Monitor whether abnormal temperatures are expected. When the temperature detector 28 detects that the abnormal temperature is outside the specified range or detects that the abnormal temperature is reached, the temperature detector 28 sends detection information to that effect to the control circuit 25.

  Then, the control circuit 25 transmits either the abnormal voltage detection information or the abnormal temperature detection information when transmitting charging power from the cradle 1 to the mobile phone terminal 2 side, during transmission, or at other times. If it is received on one side, control is performed such that the operation of the power transmission circuit 23 is stopped and the supply of power to the primary side planar coil 10 is not stopped or started.

  The control circuit 25 has a modulation / demodulation circuit 29. When transmitting / receiving data to the mobile phone terminal 2, the modem circuit 29 generates a signal modulated according to the transmission data and sends the modulated signal to the power transmission circuit 23. Thereby, data transmission to the mobile phone terminal 2 is performed. On the other hand, when receiving data from the mobile phone terminal 2, the control circuit 25 is transmitted from the mobile phone terminal 2 side from the detected waveform signal supplied through the voltage dividing resistor 24 and the waveform detector 26. The modulation signal is extracted. The modulation / demodulation circuit 29 demodulates the modulated signal. Thereby, the data transmitted from the mobile phone terminal 2 is received.

  The CPU 31 controls the entire cradle 1. As a specific control example, the CPU 31 controls power transmission by the power transmission control unit 22 of the cradle 1, authentication processing and control of the mobile phone terminal 2 mounted on the terminal mounting table of the cradle 1, mobile phone terminal 2 performs control of data communication with the communication device 2. In the example of FIG. 3, the CPU 31 of the cradle 1 is connected to an input user I / F unit 34 such as a touch panel and a keyboard, an output user I / F unit 35 such as a display and a speaker, a LAN, the Internet, and the like. In this example, the network I / F unit 36, the external memory 33, the internal memory 32, and the like are connected. However, these are only examples, and more components may be connected.

  Here, when the cradle 1 authenticates the mobile phone terminal 2, the CPU 31 is based on an authentication signal sent from the mobile phone terminal 2 side and authentication information prepared in advance in the internal memory 32, for example. Perform the authentication process. The authentication process performed in the cradle 1 of the present embodiment includes at least an authentication process for verifying whether or not the mobile phone terminal is a model that can be contactlessly charged by the cradle 1, and the charge exchange delivery data. There is an authentication process for verifying whether or not charging according to the transmission is permitted, and the CPU 31 performs the authentication process and control for the authentication process. Further, the authentication process for checking the permission of charging according to the transmission of the charge exchange delivery data may be an authentication process for verifying that the combination of the cradle 1 and the mobile phone terminal 2 registered in advance is correct. Then, an authentication process for collating IDs such as membership card information incorporated in advance in the mobile phone terminal 2 may be used.

  When starting the process of transmitting the charge exchange delivery data to the mobile phone terminal 2, the CPU 31 first monitors the voltage value of the built-in battery 45 on the mobile phone terminal 2 side, and the battery voltage is below a predetermined voltage. In some cases, that is, when there is not enough battery capacity to withstand data reception and storage on the mobile phone terminal 2 side, at least before actually starting transmission of the charge exchange delivery data, A certain amount of power sufficient to receive the charge exchange delivery data is transmitted to the mobile phone terminal 2 to perform charging, and after the power transmission and charging are finished, the charge exchange delivery data is actually transmitted. Control to start. The transmission of the charge exchange delivery data to the mobile phone terminal 2 may be started automatically, for example, or the user may input an instruction to start transmission through the touch panel or switch of the input user I / F unit 34, for example. It may be done when you go.

  Further, when the charge exchange delivery data is actually transmitted to the mobile phone terminal 2, the CPU 31 performs control such that, for example, only the amount of power corresponding to the data amount of the charge exchange delivery data is transmitted to the mobile phone terminal 2. Alternatively, control may be performed such that the charging power is transmitted to the mobile phone terminal 2 for a time corresponding to the data amount of the charge exchange delivery data.

  In addition, when the mobile phone terminal 2 is placed on, for example, a terminal mounting base and the charge exchange delivery data is transmitted in exchange for charging the mobile phone terminal 2, the CPU 31 outputs an output user such as a display or a speaker. The terminal user may be notified of the fact that the charge exchange delivery data is transmitted to the mobile phone terminal 2 in exchange for charging by display or audio output through the I / F unit 35.

  On the other hand, in FIG. 3, the internal circuit 40 on the mobile phone terminal 2 side is included in the circuit board 15 of FIG. 2, and the main components are the secondary planar coil 14, the voltage dividing resistor 41, the power receiving circuit. 42, a power reception control unit 43, a mobile phone charging circuit 44, a battery 45 as a secondary battery, and the like.

  The power reception circuit 42 includes a rectifier circuit and a regulator as a configuration for power reception, and includes a resonance circuit, a driver, an oscillation circuit, and the like of the secondary planar coil 14 as a configuration for data transmission to the cradle 1. Yes.

  The rectifier circuit of the power receiving circuit 42 converts the output voltage (AC voltage) between both coil ends of the secondary planar coil 14 into a DC voltage and sends it to the regulator. The regulator converts the DC voltage supplied from the rectifier circuit into a predetermined voltage used in the charging circuit 44 of the mobile phone terminal, and sends it to the power reception control unit 43.

  The voltage dividing resistor 41 is provided between the secondary side planar coil 14 and the power receiving circuit 42, divides the voltage between both coil ends of the secondary side planar coil 14, and receives and controls the divided voltage output. It is provided for sending to the unit 43.

  The power reception control unit 43 includes a control circuit 50, a voltage / waveform detector 51, and the like as main components.

  The voltage / waveform detector 51 is supplied with an output obtained by dividing the voltage appearing between both coil ends of the secondary planar coil 14 by the voltage dividing resistor 41. The voltage / waveform detector 51 detects the signal waveform of the divided voltage output and outputs the detected waveform signal to the control circuit 50. The voltage / waveform detector 51 detects the frequency of the power reception signal from the signal waveform of the divided voltage output. This frequency detection signal is sent to the control circuit 50. The voltage / waveform detector 51 detects the voltage value from the voltage dividing resistor 41 and performs A / D conversion, and sends the voltage value signal after the A / D conversion to the control circuit 50.

  When the battery 45 is charged by the mobile phone charging circuit 44, the control circuit 50 sends the power received by the power receiving circuit 42 to the mobile phone charging circuit 44.

  When the charging power is supplied from the power reception control unit 43, the mobile phone charging circuit 44 sends the charging power to the battery 45 and charges it according to the remaining amount of the battery 45.

  Further, the control circuit 50 converts the detected waveform signal supplied through the voltage dividing resistor 41 and the voltage / waveform detector 51, that is, a detected waveform signal having a voltage waveform appearing between both coil ends of the secondary planar coil 14. Based on this, it is determined whether the terminal 2 is approaching or leaving the terminal mounting table of the cradle 1. That is, the control circuit 50 detects the voltage fluctuation generated in the secondary side planar coil 14 by the approach and detachment of the terminal 2 from the terminal mounting table, and detects the waveform fluctuation signal through the voltage dividing resistor 41 and the voltage / waveform detector 51. Detect by. Then, the control circuit 50 controls the supply and stop of the received power to the mobile phone charging circuit 44 as necessary, based on the detection of the approach and detachment of the terminal 2 from the terminal mounting table.

  Further, the control circuit 50 detects the resonance frequency of the secondary planar coil 14 during contactless power transmission, that is, the primary planar coil on the cradle 1 side, based on the frequency detection signal supplied through the voltage / waveform detector 51. 10 to detect the resonance frequency. When the control circuit 50 detects that the resonance frequency of the primary planar coil 10 of the cradle 1 has been changed, the control circuit 50 notifies the mobile phone charging circuit 44 to that effect. As a result, the mobile phone charging circuit 44 performs battery charging control optimized for the electric power whose power transmission amount is changed by changing the resonance frequency.

Further, the control circuit 50 has a modulation / demodulation circuit 52. When transmitting the above-described charging data or the like to the cradle 1, the modulation / demodulation circuit 52 generates a signal modulated according to the data and sends the modulated signal to the power receiving circuit 42.
At this time, the oscillation circuit of the power receiving circuit 42 generates a reference oscillation signal for data transmission from the mobile phone terminal 2 to the cradle 1 and outputs the reference oscillation signal to the driver. The driver resonates the resonance circuit using the reference oscillation signal from the oscillation circuit under the control of the control circuit 50 of the power reception control unit 43, thereby causing the secondary planar coil 14 to have a predetermined resonance frequency. Oscillate. At the same time, the driver superimposes the modulation signal for information transmission supplied from the control circuit 50 of the power receiving circuit 43 on the reference oscillation signal. Thereby, data transmission to the cradle 1 is performed.

  On the other hand, when receiving data from the cradle 1, the control circuit 50 uses a modulation signal transmitted from the cradle 1 side from the detection waveform signal supplied through the voltage dividing resistor 41 and the voltage / waveform detector 51. Perform extraction. The modulation / demodulation circuit 52 demodulates the modulated signal. Thereby, the data transmitted from the cradle 1 is received.

  The CPU 61 of the mobile phone terminal 2 controls the entire mobile phone terminal 2. As a specific control example, the CPU 61 controls the battery 45 using the charging power supplied from the cradle 1 or the cradle 1 when the own terminal is placed on the terminal placement table of the cradle 1. Authentication processing and control, data communication control with the cradle 1, battery voltage detection control during battery charging, temperature detection control, and the like. In the example of FIG. 3, the CPU 61 of the mobile phone terminal 2 includes a temperature sensor (thermistor) for detecting the temperature of the display unit 63 such as a display, the audio output unit 65 such as a speaker, the internal memory 62, and the battery 45. ) 46 and the like are given as examples, but these are merely examples, and each component in the mobile phone terminal 2 is actually connected.

  Here, when the mobile phone terminal 2 authenticates the cradle 1, the CPU 61 authenticates based on an authentication signal sent from the cradle 1 side and, for example, authentication information prepared in advance in the internal memory 62. Process. The authentication process performed by the mobile phone terminal 2 of the present embodiment includes at least an authentication process for checking whether or not the mobile phone terminal 2 is a cradle 1 of a model capable of contactless charging, and contactless charging. As an exchange, there is an authentication process for verifying whether or not to permit transmission and reception of the charge exchange delivery data, and the CPU 61 performs the authentication process and control for it. In addition, authentication processing for verification when permitting transmission and reception of charge exchange delivery data as exchange for non-contact charge verifies that the combination of the mobile phone terminal 2 and the cradle 1 registered in advance is correct. It may be an authentication process to be performed, or may be an authentication process in which collation with an ID incorporated in advance in the cradle 1 is performed.

  When starting the process of receiving the charge exchange delivery data from the cradle 1, the CPU 61 detects the voltage data of the battery 45 of the terminal 2 and transmits the detected voltage data to the cradle 1 side. Take control. When the battery voltage is below a predetermined voltage and there is no remaining battery capacity to withstand data transmission and reception operations on the mobile phone terminal 2 side, the cradle 1 side actually performs charge exchange as described above. Before the transmission of the distribution data is started, at least a certain amount of power that can receive the charge exchange distribution data is transmitted to the mobile phone terminal 2. Therefore, the CPU 61 uses the transmission power to transfer the battery 45. After charging is completed, control may be performed so as to actually permit reception of the charge exchange delivery data. The reception of the charge exchange delivery data from the cradle 1 may be started automatically, for example, or may be made when the user inputs an instruction to start reception via, for example, a keyboard.

  Further, when the charge exchange delivery data is actually received from the cradle 1, the CPU 61 may perform control such that only the amount of power corresponding to the data amount of the charge exchange delivery data is received from the cradle 1, for example. Alternatively, control may be performed so that power is received from the cradle 1 for a time corresponding to the data amount of the charge exchange delivery data.

  Further, when the CPU 61 receives the charge exchange delivery data in exchange for the transmission of the charging power from the cradle 1, the CPU 61 outputs the charge exchange delivery data in a form that can be recognized by the user, that is, the charge exchange delivery data is displayed. If it is possible data, it is displayed on the display of the display unit 63, and, for example, when the charge exchange delivery data is data that can be output as audio, control is performed such that audio is output from the speaker of the audio output unit 65 or the like. I do. Note that the display and voice output of the charge exchange delivery data may be performed automatically, for example, or may be performed when the user inputs a display or voice output instruction via, for example, a keyboard.

[Processing example of cradle and mobile phone terminal during transmission of charging power and transmission of charge exchange delivery data]
FIG. 4 shows the flow of processing in the cradle 1 and the mobile phone terminal 2 when charging power is transmitted according to the mutual authentication between the cradle 1 and the mobile phone terminal 2 and the transmission of the charge exchange delivery data. Show. The example in FIG. 4 shows a basic flow in which transmission of charging power is started after transmission of charge exchange delivery data after mutual authentication is completed.

  In FIG. 4, when the mobile phone terminal 2 is set on the terminal mounting table of the cradle 1 in step S1, first, the cradle 1 transmits authentication power to the mobile phone terminal 2 as a process in step S2. On the other hand, in the cellular phone terminal 2, the control circuit 50 of the power reception control unit 43 starts to operate by receiving the authentication power from the cradle 1 as the process of step S <b> 21.

  When the control circuit 50 starts operating in the mobile phone terminal 2, the mobile phone terminal 2 side performs terminal authentication for the cradle 1 side to check whether the terminal 2 is a model that can be contactlessly charged as a process in step S <b> 22. The business signal is transmitted to the cradle 1. On the other hand, on the cradle 1 side, the mobile phone terminal 2 is a model that supports contactless charging by the cradle 1 using the terminal authentication signal sent from the mobile phone terminal 2 side as the process of step S3. A verification process is performed to verify the above.

  If the cradle 1 determines that the authentication is NG in the verification by the terminal authentication signal, the cradle 1 ends the process. On the other hand, if the cradle 1 determines that the authentication is OK, the process proceeds to step S5.

  When the process proceeds to step S5, the cradle 1 confirms whether or not the battery 45 of the mobile phone terminal 2 has a voltage or a battery level sufficient to withstand the transmission and reception operation of the charge exchange delivery data. A confirmation signal (hereinafter referred to as a first confirmation signal) is transmitted to the mobile phone terminal 2 side through the primary planar coil 10.

  In the cellular phone terminal 2 that has received the first confirmation signal via the secondary planar coil 14, as the process of step S23, the cellular phone charging circuit 44 detects the voltage of the battery 45, and the detected voltage data is sent to the CPU 61. Send to. Then, the CPU 61 sends the voltage data to the control circuit 50 of the power reception control unit 43 as transmission data to the cradle 1. As a result, the voltage data of the battery 45 is transmitted from the mobile phone terminal 2 to the cradle 1 as a battery voltage detection signal as in step S24.

  The cradle 1 that has received the battery voltage detection signal can receive the charge exchange delivery data transmitted from the cradle 1 side by the battery 45 of the mobile phone terminal 2 based on the battery voltage detection signal as the process of step S6. It is determined whether or not there is a remaining capacity. More specifically, the CPU 31 of the cradle 1 represents the relationship between the battery voltage and the battery charge capacity as shown in FIG. 5 using the battery voltage data obtained from the battery voltage detection signal received from the mobile phone terminal 2. Based on the characteristic data, it is determined whether or not the battery charge capacity corresponding to the current battery voltage remains to the extent that the charge exchange delivery data can be received. When the CPU 31 of the cradle 1 determines that the remaining battery capacity of the mobile phone terminal 2 is less than the amount capable of receiving the charge exchange delivery data based on the characteristic data shown in FIG. The control circuit 25 of the power transmission control unit 22 is controlled to transmit power necessary for the mobile phone terminal 2 to receive the charge exchange delivery data. Thereby, on the mobile phone terminal 2 side, as the process of step S25, the power transmitted from the cradle 1 is received and the battery 45 is charged. Further, the mobile phone terminal 2 detects the battery voltage that increases due to the charging in step S23, and transmits the battery voltage detection signal to the mobile phone terminal 2 side in step S24.

  On the other hand, if the cradle 1 determines in step S6 that the remaining battery capacity of the mobile phone terminal 2 is sufficient to receive the charge exchange delivery data, the cradle 1 proceeds to step S8. In addition, when it is determined that the remaining battery capacity has become a sufficient amount due to the power transmission in step S7, the cradle 1 interrupts the power transmission in step S7 and advances the process to step S8.

  In step S8, the cradle 1 determines whether or not the other party's mobile phone terminal 2 is a user's terminal that permits transmission of charge exchange delivery data. A confirmation signal (hereinafter referred to as a second confirmation signal) for performing collation of the user's mobile phone terminal registered in advance and ID collation using membership card information incorporated in advance in the mobile phone terminal 2 Is transmitted to the mobile phone terminal 2 side.

  The mobile phone terminal 2 that has received the second confirmation signal receives the second confirmation signal sent from the cradle 1 as the process of step S26, and the cradle 1 allows the user to transmit the charge exchange delivery data by the second confirmation signal. After confirming whether it is the cradle of the installer, as a process in step S27, a member authentication signal such as membership card information stored in advance in the internal memory or input by the user via the keyboard is transmitted to the cradle 1. .

  The cradle 1 receives the member authentication signal transmitted from the mobile phone terminal 2 in step S9, and the other party's mobile phone terminal 2 permits the transmission of the charge exchange delivery data by the member authentication signal. If the terminal is confirmed, the process proceeds to step S10.

  In step S10, the cradle 1 starts control processing for transmitting the charge exchange delivery data to the mobile phone terminal 2, and then charge exchange delivery from the internal memory 32 or the external memory 33 as step S11. The data is read, and the charge exchange delivery data is transmitted to the mobile phone terminal 2 as the process of step S12.

  When the mobile phone terminal 2 receives the charge exchange delivery data from the cradle 1 as the process of step S28, the mobile phone terminal 2 stores the charge exchange delivery data in the internal memory or the like as the process of step S29, and further charges the charge as the process of step S30. Display exchange delivery data.

  Further, the cradle 1 determines whether or not the transmission of the charge exchange delivery data has been completed as the process of step S13, and when the transmission is completed, notifies the fact that the transmission of the charge exchange delivery data has been completed as the process of step S14. A data transmission end signal for transmission is transmitted to the mobile phone terminal 2.

  Thereafter, the cradle 1 starts a process of transmitting charging power to the mobile phone terminal 2 as the process of step S15.

  In addition, when the mobile phone terminal 2 receives the data transmission end signal in step S31, the mobile phone terminal 2 shifts to a process of charging the battery 45 with power transmitted thereafter from the cradle 1.

[Example of power transmission processing according to the amount of charge exchange delivery data]
In the system according to the present embodiment, as described with reference to FIG. 4, the charge exchange delivery data is transmitted after the mutual authentication between the cradle 1 and the mobile phone terminal 2 is completed, and the charge exchange is performed after the completion of the transmission of the charge exchange delivery data. Although transmission of electric power is started, it is also possible to control the amount of electric power transmitted to the mobile phone terminal 2 to an amount corresponding to the data amount of the charge exchange delivery data. FIG. 6 shows the flow of processing when power corresponding to the amount of charge exchange delivery data is transmitted from the cradle 1 to the mobile phone terminal 2. In FIG. 6, the same processing as that in each step of FIG. 4 is denoted by the same instruction symbol as in FIG. 4, and description thereof is omitted.

  In FIG. 6, when the cradle 1 starts transmission processing of charging power to the mobile phone terminal 2 in step S15 and further performs actual power transmission processing to the mobile phone terminal 2 in step S16, the cradle 1 As a process of step S17, it is determined whether or not a full charge signal indicating that the battery 45 is fully charged has been sent from the mobile phone terminal 2 side, and while the full charge signal has not been sent, step S18 is performed. It is determined whether or not the transmission of the amount of power corresponding to the data amount of the charge exchange delivery data is completed as the process.

  If the full charge signal has not been received in step S17 and the power transmission according to the amount of charge exchange delivery data has not been completed in step S18, the cradle 1 transmits the power in step S16. Continue.

  On the other hand, if it is determined in step S17 that a full charge signal has been received or power transmission according to the amount of charge exchange delivery data has been completed in step S18, the cradle 1 performs the process in step S19. The power transmission to the mobile phone terminal 2 is terminated, and a power transmission end signal for notifying the mobile phone terminal 2 that power transmission has been completed is transmitted.

  Further, when receiving the data transmission end signal in step S31, the cellular phone terminal 2 proceeds to the process of step S32 in order to charge the battery 45 with the power transmitted thereafter from the cradle 1.

  Next, the cellular phone terminal 2 determines whether or not the cradle 1 has transmitted a power transmission end signal in the process of step S19 as a process of step S33, and if a power transmission end signal is transmitted from the cradle 1. In step S36, the charging process is terminated.

  Further, the mobile phone terminal 2 monitors whether or not the battery 45 is fully charged as the process of step S34 while the power transmission end signal is not received in step S33. If the mobile phone terminal 2 has not received the power transmission end signal in step S33 and the battery 45 is not fully charged in step S34, the mobile phone terminal 2 continues the power reception and charging process in step S32.

  On the other hand, when it is determined in step S34 that the battery 45 is fully charged, the cellular phone terminal 2 performs a full charge for notifying that the battery 45 of its own terminal is fully charged as a process in step S35. After transmitting the signal to the cradle 1, the process proceeds to step S36.

  In the example of FIG. 6, the case where only the amount of electric power corresponding to the data amount of the charge exchange delivery data is transmitted from the cradle 1 to the mobile phone terminal 2 has been described. It is also possible to perform control such that power is transmitted from the cradle 1 to the mobile phone terminal 2 for a time corresponding to the amount of data. In this case, for example, in step S18 of FIG. 6, the cradle 1 determines whether or not the elapsed time from the start of power transmission to the mobile phone terminal 2 has reached the time determined according to the data amount of the charge exchange delivery data. When the above-mentioned elapsed time has reached the time corresponding to the data amount of the charge exchange delivery data, the process proceeds to step S19.

[Transmission example of charge exchange delivery data according to the available memory capacity of the mobile phone terminal]
In the system of the present embodiment described above, after mutual authentication between the cradle 1 and the mobile phone terminal 2 is performed, an example in which the charge exchange delivery data is transmitted from the cradle 1 to the mobile phone terminal 2 has been described. There may be a case where the internal memory of the mobile phone terminal 2 does not have enough free space to store the charge exchange delivery data or the user does not want to save all the charge exchange delivery data in the internal memory.

  For this reason, in the system according to the embodiment of the present invention, the free space of the internal memory of the mobile phone terminal 2 or the memory capacity that the user has allowed to save to the internal memory, that is, the capacity that can newly store data in the internal memory It is also possible to transmit the charge exchange delivery data from the cradle 1 side.

  FIG. 7 shows the flow of processing in the case where the charge exchange delivery data having a data amount corresponding to the empty capacity of the internal memory of the mobile phone terminal 2 or the memory capacity permitted by the user is transmitted from the cradle 1 to the mobile phone terminal 2. . In FIG. 7, the same processing as that in each step of FIG. 4 is denoted by the same instruction symbol as in FIG. 4, and description thereof is omitted.

  In FIG. 7, after the member authentication signal transmission process in step S27, the cellular phone terminal 2 performs a terminal memory capacity signal corresponding to the free capacity of the internal memory of the own terminal or the memory capacity permitted by the user as the process of step S51. Is transmitted to the cradle 1.

  When the cradle 1 receives the member authentication signal from the mobile phone terminal 2 in step S9 and further receives the terminal memory capacity signal in step S41, the cradle 1 obtains a data amount corresponding to the terminal memory capacity as processing in step S42. The charge exchange delivery data to be transmitted to the mobile phone terminal 2 is determined based on the data amount. In addition, as the charge exchange delivery data determined according to the data amount obtained by the calculation, for example, a plurality of charge exchange delivery data having substantially the same contents and different data amounts are prepared in advance, and the plurality of charge exchange delivery data is prepared. For example, the charge exchange delivery data corresponding to the amount of data obtained by the above calculation may be selected from among the above. For example, the charge exchange delivery data of moving image data may be changed to the charge exchange delivery data of still image data. For example, a process for changing the charge exchange delivery data of image or audio data to a charge exchange delivery data for text data, or the reverse process, for example, a process for changing the data compression rate. May be.

  In addition, when the free capacity of the internal memory of the mobile phone terminal 2 is smaller than the data amount of the charge exchange delivery data transmitted from the cradle 1 side, or the memory capacity permitted by the user is small, for example, the cradle It is also possible to display a message or the like on one output user I / F unit 35 or the like.

[Example when the user does not allow transmission of charge exchange delivery data]
In the present embodiment, an example is given in which the charge exchange delivery data is transmitted to the mobile phone terminal 2 in exchange for supplying the charging power to the mobile phone terminal 2, but the user of the mobile phone terminal 2 charges the charge exchange delivery data. If the transmission of the cradle is not permitted, it corresponds to the amount set in advance as the amount that the cradle installer can pay to the terminal user as a reward corresponding to the charge exchange delivery data, that is, the data delivery to the mobile phone terminal 2 You may make it request | require charge from the user of the said mobile telephone terminal 2. FIG. The amount that the cradle installer can pay to the terminal user as a reward for the above data distribution may be an amount equivalent to the electricity charge of the charging power supplied to the mobile phone terminal 2, but the calculation of the electricity charge and the equipment In the present embodiment, the amount is set in advance as a reward for data distribution by the cradle installer. In addition, various methods such as addition to the communication fee of the mobile phone terminal and addition to the membership fee when the user is a member of a store or the like can be used as the actual billing process.

[Summary]
As described above, according to the embodiment of the present invention, the cradle 1 is installed in a store or restaurant, in a tourist information center, in a theater, in a museum, in an amusement park, or in a public facility. In addition, since the charging power of the battery 45 of the mobile phone terminal 2 is transmitted from the cradle 1 without contact using electromagnetic induction, the terminal user always carries an AC adapter, a charging connector, and a spare battery. There is no need.

  In addition, according to the embodiment of the present invention, even if the installer of the cradle 1 bears the electricity fee associated with the supply of charging power to the mobile phone terminal 2, advertisement information, coupon information, recommended spot information for sightseeing spots, entertainment It is possible to enjoy the merit that the charge exchange delivery data that is desired to be delivered to the terminal user, such as information, can be transmitted to the mobile phone terminal 2 and notified to the terminal user. In particular, in the case of this embodiment, the charge exchange delivery data to be transmitted to the mobile phone terminal 2 is data that can be freely determined by the installer of the cradle 1, and the charging power supply to the mobile phone terminal 2 and Since the cradle installer can also freely determine the relationship with the charge exchange delivery data to be exchanged and transmitted, the cradle installer does not calculate the exact electricity charges associated with the power supply to the mobile phone terminal 2 at all. It is unnecessary, and there is no need for any work such as adjustment of the amount of power supply according to the electricity bill, and no equipment for them.

  Furthermore, according to the present embodiment, the transmission of the charge exchange delivery data from the cradle 1 to the mobile phone terminal 2 is performed when the user of the mobile phone terminal 2 permits or from the cradle 1 such as a store or facility. Since it is limited to the case where the member registration for receiving the supply of the charging power has already been performed, unnecessary data is not downloaded to the mobile phone terminal 2 in a situation not desired by the user.

  Thus, according to the present embodiment, contactless charging is possible, and information can be transmitted to the user's terminal in exchange for the charge, so that both the cradle installer and the user can benefit. Is possible.

  The above description of the embodiment is an example of the present invention. Therefore, the present invention is not limited to the above-described embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea according to the present invention. .

  In the present embodiment, the cellular phone terminal 2 and its cradle 1 are taken as examples. However, the present invention is not limited to them, and the portable terminal of the present invention is, for example, a PDA (Personal Digital Assistants), a digital camera, or a portable audio. The present invention can also be applied to various electronic devices such as devices, portable video devices, and portable navigation devices.

It is a figure which shows schematic structure of the non-contact electric power transmission system of this invention embodiment. It is a schematic cross section of the schematic structure of the principal part relevant to the non-contact electric power transmission performed between the mobile telephone terminal and cradle of embodiment of this invention. It is a block diagram which shows the detailed internal circuit structure of the principal part relevant to the non-contact electric power transmission and data transmission in the cradle and mobile telephone terminal of this embodiment. It is a flowchart which shows the flow of a process in a cradle and a mobile telephone terminal at the time of transmission of the charging power according to the mutual authentication between the cradle of this embodiment and a mobile telephone terminal, and transmission of charge exchange delivery data. It is a characteristic view showing the relationship between the battery voltage of a mobile telephone terminal, and battery charge capacity. It is a flowchart which shows the flow of a process in the case of transmitting the electric power according to the data amount of charge exchange delivery data from a cradle to a mobile telephone terminal. It is a flowchart which shows the flow of a process in the case of transmitting charge exchange delivery data of the data amount according to the empty capacity | capacitance of the internal memory of a mobile telephone terminal, or the memory capacity which the user permitted from a cradle to a mobile telephone terminal.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cradle, 2 Cellular phone terminal, 3 AC adapter, 4,33 External memory, 5 External memory slot, 10 Cradle primary side plane coil, 11 Control board part, 12 Power cord, 13 Cell phone terminal battery cover, 14 Cellular Secondary terminal coil of phone terminal, 15 Circuit board of mobile phone terminal, 16, 45 Battery of mobile phone terminal, 20 Internal circuit on cradle side, 22 Power transmission control unit, 23 Power transmission circuit, 24 Voltage divider resistance on cradle side, 25 control circuit of power transmission control unit, 26 waveform detector, 27 voltage monitor, 28 temperature detector, 29 cradle side modulation / demodulation circuit, 30 temperature sensor, 31 cradle side CPU, 32 cradle internal memory, 34 input user I / F section, 35 output user I / F section, 36 network I / F section, 40 mobile phone Terminal side internal circuit, 41 Voltage dividing resistor on mobile phone terminal side, 42 Power receiving circuit, 43 Power receiving control unit, 44 Mobile phone charging circuit, 50 Control circuit of power receiving control unit, 51 Voltage / waveform detector, 52 Mobile phone terminal Modulation / demodulation circuit, 61 CPU of mobile phone terminal, 62 internal memory of mobile phone terminal, 63 display unit, 65 audio output unit

Claims (15)

A non-contact power transmission unit for non-contact transmission of power for charging a secondary battery of a mobile terminal using electromagnetic induction through a coil formed by winding a linear conductor;
An information communication unit for communicating information signals with a mobile terminal through the coil of the non-contact power transmission unit,
An authentication unit that performs authentication of the mobile terminal by using a predetermined authentication information signal for permission authentication of power transmission for charging to the mobile terminal and permission authentication of data distribution to the mobile terminal;
At least control for transmitting distribution data prepared in advance for distribution to a mobile terminal authenticated by the authentication unit from the information communication unit to the mobile terminal authenticated by the authentication unit as the information signal, and the authentication unit authenticating A control unit that performs control to transmit the charging power of the secondary battery to the portable terminal from the non-contact power transmission unit, and
A contactless charging device comprising:   After the control for transmitting the distribution data to the mobile terminal from the information communication unit is completed, the control unit performs control to transmit the charging power of the secondary battery of the mobile terminal from the contactless power transmission unit. The contactless charging apparatus according to claim 1, wherein:   The contactless charging apparatus according to claim 1, further comprising a memory unit that holds distribution data prepared in advance for distribution to a mobile terminal that has been authenticated by the authentication unit.   The authentication unit includes a terminal authentication information signal for determining that the mobile terminal can receive the charging power transmitted from the non-contact power transmission unit and the member user who permits data distribution. The contactless charging apparatus according to claim 1, wherein the portable terminal is authenticated using a member authentication information signal for determining that the terminal is a terminal.   The contactless charging apparatus according to claim 1, wherein the control unit performs control to transmit the charging power corresponding to the data amount of the delivery data from the contactless power transmission unit in a contactless manner.   The contactless charging apparatus according to claim 1, wherein the control unit performs control to transmit the charging power from the contactless power transmission unit in a contactless manner for a time corresponding to a data amount of the distribution data.   The control unit monitors the voltage value of the secondary battery of the portable terminal through information communication by the information communication unit, and the voltage value is less than a voltage value necessary for receiving the distribution data at the portable terminal. In addition, prior to transmitting the distribution data from the information communication unit, control is performed so that the amount of charging power required for the portable terminal to receive the distribution data is transmitted from the non-contact power transmission unit without contact. The contactless charging apparatus according to claim 1.   When the portable terminal does not permit delivery of distribution data, the control unit charges a charge equivalent to the distribution of the distribution data for contactless transmission of charging power from the contactless power transmission unit to the portable terminal. The contactless charging apparatus according to claim 1, wherein the contactless charging apparatus is performed.   The control unit determines a memory capacity capable of newly storing data in the internal memory of the portable terminal through information communication by the information communication unit, and transmits the information from the information communication unit based on the memory capacity that can be stored. The contactless charging apparatus according to claim 1, wherein data is determined. A non-contact power transmission unit that receives electric power transmitted from the non-contact charging device using electromagnetic induction via a coil formed by winding a linear conductor; and
A secondary battery,
A charge control circuit that performs control to charge the secondary battery with the power received through the coil of the non-contact power transmission unit;
An information communication unit for communicating information signals with the contactless charging device through the coil of the contactless power transmission unit,
A control unit that performs control to transmit a predetermined authentication information signal for permission authentication of power transmission for charging and permission authentication of data distribution to the terminal to the contactless charging apparatus as the information signal from the information communication unit When,
A user interface unit that outputs distribution data received from the contactless charging device through at least the information communication unit;
A portable terminal characterized by comprising:   The mobile terminal according to claim 10, further comprising a memory unit that holds distribution data received from the contactless charging apparatus through the information communication unit.   The control unit is a terminal user information terminal that permits data distribution and a terminal authentication information signal indicating that the mobile terminal is capable of receiving charging power transmitted from a contactless charging device without contact power. The mobile terminal according to claim 10, wherein a control for causing the information communication unit to transmit an information signal for membership authentication to the contactless charging device from the information communication unit as the information signal is performed. A voltage value detection unit for detecting the voltage value of the secondary battery,
11. The portable terminal according to claim 10, wherein the control unit performs control to transmit the voltage value data detected by the voltage value detection unit to the contactless charging apparatus as the information signal from the information communication unit.   The control unit detects a memory capacity capable of storing new data in the memory unit, and performs control to transmit the detected memory capacity data as the information signal from the information communication unit to the contactless charging device. The mobile terminal according to claim 11. A non-contact charging device for non-contact transmission of power for charging a secondary battery of a portable terminal using electromagnetic induction through a coil formed by winding a linear conductor, and a linear conductor In a non-contact power transmission system comprising a mobile terminal that receives electric power transmitted from a non-contact charging device using electromagnetic induction via a formed coil and charges a secondary battery,
The contactless charging device communicates information signals with the portable terminal through the coil, and performs predetermined authentication for authorization authentication for charging power transmission to the portable terminal and authorization for data distribution to the portable terminal. For authenticating the portable terminal using the information signal for the purpose, and transmitting the distribution data prepared in advance for distribution to the authenticated portable terminal as an information signal to the authenticated portable terminal, and the authenticated portable terminal For the non-contact transmission of the charging power of the secondary battery,
The portable terminal communicates an information signal with the contactless charging device through the coil, and a predetermined authentication information signal for permission authentication for charging power transmission and permission authorization for data distribution to the terminal itself. Is transmitted to the contactless charging device as an information signal, and at least the distribution data received from the contactless charging device is output through the user interface unit.
A contactless power transmission system.

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