KR20100120057A - Noncontact type data communication and battery recharge pad for mobile phone - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a non-contact data communication and battery charge connection device of a portable terminal device which enables contactless charging of a built-in battery of a portable terminal device and contactless data communication between a portable terminal device and a PC using a single wireless connection pad. have.

The portable terminal device non-contact data communication and battery charging connection device of the present invention includes a coil 102 provided inside the pad 101, and magnetic induction necessary for wireless charging of the battery of the built-in mobile terminal device and activation of the built-in wireless chip. Inverter device 103 for generating AC power by receiving a USB power source or an external DC power source to apply an alternating current for coupling, and a portable terminal device embedded wireless chip activated by induction electromotive force by the coil 102 and a PC. A wireless connection pad 100 including an RF demodulator 105 and a USB converter 104 for performing RF modulation and serial transmission for contactless data communication; A coil 209 mounted on the portable terminal device, a stop value 212 for rectifying the electromotive force induced in the coil, an internal battery 213 charged with the DC voltage rectified by the stop value, and the coil 209 And a portable terminal device 200 including a built-in wireless chip 204 that is connected to the RF reader program in the PC in a non-contact manner through a wireless coupling of the coil 102 and the coil 102.

Description

Non-contact type data communication and battery recharge pad for mobile phone device

The present invention provides a non-contact data communication between the portable terminal device and the PC using a single wireless connection pad, the memory capacity of the wireless chip can be expanded, and further, the contactless charging of the battery in the portable terminal device is possible. It relates to a battery charging connection device.

With the development of information and communication technology, the spread of personal mobile terminal devices such as mobile phones, PDAs, and handheld game machines has spread, and the connection technology for data communication between these mobile devices, PCs, mobile terminal devices, mobile terminal devices, mobile terminal devices, and wireless Internet The charging technology of internal batteries is also developing.

The related data communication connection methods such as portable terminal devices and PCs have traditionally been wired via contact terminals or cables, and wired connections are also used when charging the internal battery of the portable terminal device. The wired connection method for communication and charging of such a mobile terminal device limits user convenience and freedom in using the device.

Recently, various methods have been proposed to solve the shortcomings of the wired connection method for communication of a mobile terminal device or charging of an internal battery.

A typical technology is Bluetooth technology that enables short-range wireless data communication in the near term, including portable terminal devices and PCs. Bluetooth technology is widely used, but it supports only simple communication connection function between portable terminal device and PC. Therefore, in order to charge the internal battery of the portable terminal device, a separate charging device must be contacted with a wire, which in turn results in limiting the freedom and convenience of the user of the portable terminal device.

On the other hand, a technology for wirelessly charging the internal battery of the portable terminal device has been proposed. This technology wirelessly transfers the electromotive force generated by the induction magnetic field to the built-in battery of the portable terminal device, thereby charging the built-in battery of the portable terminal device by the induced electromotive force. This allows the internal battery of the portable terminal device to be charged wirelessly, but for adjacent period data communication such as the portable terminal device and the PC, a separate data communication connection cable or a wireless connection system such as Bluetooth must be driven separately.

In particular, when a portable terminal device having a non-contact wireless chip such as an RF traffic card or an RF credit card is connected to a PC through an RF reader, an operation of wirelessly charging the internal battery of the portable terminal device wirelessly is impossible.

SUMMARY OF THE INVENTION An object of the present invention is to provide a non-contact data communication and battery charge connection device of a portable terminal device which enables contactless charging of a built-in battery of a portable terminal device and contactless data communication between a portable terminal device and a PC using a single wireless connection pad. have.

Another object of the present invention is to provide a non-contact data communication and battery charging connection device of a portable terminal device that can expand the memory capacity of the internal wireless chip of the portable terminal device using an internal memory or an external memory of the mobile terminal.

In order to achieve the object of the present invention, a non-contact data communication and battery charging connection device of a portable terminal device includes a coil provided in an inside of a pad, and a wireless charging of a portable terminal device built-in battery and activation of a wireless chip embedded in a portable terminal device. Non-contact data communication between an inverter device that receives AC power or USB power or external DC power to generate alternating current for magnetic induction coupling, and an embedded wireless chip that is activated by induction electromotive force by the coil and a PC. A wireless connection pad including an RF demodulator and a USB converter for performing RF demodulation and serial transmission; A coil mounted inside the portable terminal device, a stop value for rectifying the electromotive force induced in the coil, an internal battery charged with the DC voltage rectified by the stop value, and a non-contact type through a wireless coupling between the coil and the coil And a portable terminal device including a built-in wireless chip connected to the RF reader program in the PC.

In the non-contact data communication and battery charging connection device of the mobile terminal device of the present invention, the mobile terminal device with a non-contact wireless chip and a PC or other adjacent period data communication are made in a non-contact manner, and at the same time the internal battery is charged. The effect is to increase the convenience and freedom of use.

In addition, the present invention makes it possible to arbitrarily expand the memory capacity of the mobile terminal device built-in wireless chip by using an internal memory or an external memory of the mobile device.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Figure 1 is a block diagram of a first embodiment of a wireless connection pad 100 of the present invention.

As referred to herein, the wireless connection pad 100 includes a coil 102 for magnetic induction coupling inside the pad 101.

The coil 102 may be configured by winding a wire or printing a pattern on a flexible substrate.

The coil 102 is supplied with an alternating current for induction field formation for magnetic induction coupling necessary for the wireless charging of the built-in battery of the portable terminal device and the activation of the wireless chip of the portable terminal device. It is configured to be applied by the inverter device 103.

The inverter device 103 is configured to generate an AC voltage by using a USB voltage obtained from a USB port of a PC as an input power source or by receiving a separate external DC power source.

Therefore, when the inverter device 103 is operated, an alternating current is supplied to the coil 102 to form an induction magnetic field. Therefore, when the portable terminal device is approached thereto, a voltage is induced in the inductive coil embedded in the portable terminal device. The built-in battery can be charged.

In addition, the induction magnetic field appearing in the coil 102 is induced by the inductive coil embedded in the mobile terminal device, and the induced electromotive force generated by this activates the built-in wireless chip of the mobile terminal device. It is received by the wireless connection pad 100 through a coil 102 that performs a wireless antenna function.

Memory information of the embedded wireless chip of the mobile terminal device received by the coil 102 of the wireless connection pad 100 is demodulated by the RF demodulator 105, converted into serial data by the USB converter 104, and then the USB connector 106. And serial transmission to the PC (150) via the USB connection port (151). The memory information of the wireless chip embedded in the portable terminal device transmitted to the PC 150 is processed by the RF reader program 152.

Here, an embodiment of charging a built-in battery of a mobile terminal device by using a single coil 102 embedded in the wireless connection pad 100 and simultaneously activating the built-in wireless chip of the mobile terminal device is shown. This is because the frequency of formation of the induction field for charging the battery differs from the communication frequency. That is, by using a wireless connection pad equipped with a single coil 102, it is possible to simultaneously perform communication and charging without interfering with each other.

2 is a block diagram of a second embodiment of a wireless access pad 100 of the apparatus of the present invention, and FIG. 3 is a block diagram of a third embodiment of a wireless access pad 100 of the apparatus of the present invention.

Unlike the configuration of the charging and communication shared coil 102 of the first embodiment (Fig. 1), the configuration of the second and third embodiments is an example in which the charging coil and the communication coil are separately separated and designed. As a second embodiment, the coil of the wireless connection pad 100 is electrically separated from the coil 102-1 and the coil 102-2, and these coils 102-1 and 102-2 are The third embodiment is configured to be driven by the output of the inverter device 103 operated by an external power supply voltage or a USB voltage. In the third embodiment, the coil of the wireless connection pad 100 is coil 102-3 and coil 102-. 4) These coils 102-3 and 102-4 are arranged to be electrically and physically separated, and configured to be driven by the output of the inverter device 103 operated by an external power supply voltage or a USB voltage.

As described above, the coil 102 in the wireless connection pad 100 may be independently disposed for charging and communication to be electrically or electrically / physically separated from each other to improve the reliability of the charging operation of the battery and the communication operation of the wireless chip. And minimize the possibility of interference.

4 is an internal block diagram of the portable terminal device 200 of the apparatus of the present invention.

As referred to herein, the portable terminal device 200 includes a controller 201 for controlling the operation of the portable terminal device, an internal memory 202 embedded in the portable terminal device, an external memory 203 removable from the portable terminal device, and a built-in wireless device. And a chip 204, and these controllers 201, internal memory 202, external memory 203, and internal wireless chip 204 have a configuration coupled to the data bus 220.

The embedded wireless chip 204 includes a wireless chip controller 205, a modulation / demodulation unit 206, a memory 207, and a rectifying unit 208 and is mounted on a case of a portable terminal device, for example, a battery cover 214. Connected to a coil 209. This coil 209 also functions as an antenna coil for communication and an induction coil for obtaining charging power.

In addition, the electromotive force induced in the coil 209 is configured to charge the internal battery 213 of the portable terminal device through the stop 212.

If necessary, the coil 209 used for charging and communication may be independently arranged and designed as a charging only coil and a communication only coil, as referenced in FIGS. 2 and 3. This allows the charging coil and the communication coil to be electrically or electrically separated from each other to improve the reliability of the charging operation of the battery of the mobile terminal device and the communication operation of the wireless chip and to minimize the possibility of mutual interference.

Herein, the embedded wireless chip 204 is a generic name for an IC chip coupled to an antenna coil to exchange data with an RF reader in a non-contact manner, and refers to a transportation card chip for an RF traffic card and a credit card chip for an RF credit card.

According to the internal structure of the portable terminal device, if the portable terminal device 200 is placed on the wireless connection pad 100, the coil 102 or 102-1 to 102-2 or 102-3 to 102-4 of the wireless connection pad. ) And the induced electromotive force due to the electromagnetic induction between the coil 209 of the portable terminal device appear at both ends of the coil 209.

The induced electromotive force shown at both ends of the coil 209 is charged to the built-in battery 213 of the portable terminal device through the stop value 212, and part of it is applied to the built-in wireless chip 204 to rectify the rectifier 208. In turn, the embedded wireless chip 204 is activated.

In this case, when the embedded wireless chip 204 is designed as a passive type, the electromotive force induced in the coil 209 is rectified to be used as an operating voltage of the embedded wireless chip, but the embedded wireless chip 204 is designed as an active type. In this case, since the mobile terminal device operates with its own voltage (voltage of the battery), it is not necessary to consider the power supply from the rectifier 208 for driving the built-in scary chip.

The built-in wireless chip 204 activated by using the power induced in the coil 209 or by using battery power may use the data stored in the memory 207 therein as the antenna using the coil 209 as an antenna. Wireless transmission to the PC 150 through the contactless 100.

The data of the memory 207 of the embedded wireless chip 204 wirelessly transmitted to the PC 150 is processed by the RF reader program 152 inside the PC.

In the non-contact data communication between the embedded wireless chip 204, the memory 207 and the PC 150, the controller 205 inside the embedded wireless chip 204 is controlled by the portable terminal device 201 according to the control of the portable terminal device controller 201. The internal memory 202 coupled to the internal data bus 220 may be recognized as a memory of the wireless chip, and in the same manner, the controller inside the internal wireless chip 204 may be controlled according to the control of the controller 201 of the portable terminal device 201. The external memory 203 for the removable mobile terminal device coupled to the internal data bus 220 of the portable terminal device may be recognized as a memory of the wireless chip.

That is, the memory capacity of the embedded wireless chip 204 can be substantially expanded through the control mode and the memory selection function of the portable terminal device by the user.

The recognition of the internal memory 202 and the external memory 203 by the controller 201 of the portable terminal device 200 is performed by the contactless wireless communication between the internal wireless chip 204 and the PC 150. Data read and data write function.

5 is an exploded view of an embodiment of a portable terminal device to which the function of the present invention is applied, and FIG. 6 is a cross-sectional view taken along line AA of FIG. Alternatively, the electromagnetic wave shielding layer 216 may be formed toward the contact surface of the internal battery 213 of the battery cover 214 by attaching a film.

As a result, when the cross-sectional structure of the battery cover 214 is examined, the electromagnetic wave blocking layer 216, the coil 209, and the resin layer 215 are formed from the surface in contact with the internal battery 213. That is, since the electromagnetic wave generated in the mobile terminal device is sufficiently blocked by the electromagnetic wave shielding layer 216 formed inside the battery cover 214, the surface of the resin layer 215 which is the outer surface of the battery cover 214 is generally general. Coating can be carried out.

When the general cover is applied to the battery cover 214 instead of the electromagnetic shielding coating, radio interference by the electromagnetic shielding layer is not generated in the coil 209 of the antenna function connected to the embedded wireless chip 204. If the RF traffic card function or RF credit card function is granted, stable contactless communication operation can be maintained without interference by the electromagnetic shielding layer.

Therefore, the problem that the electromagnetic wave blocking coating on the case of the portable terminal device, which is implemented for the purpose of blocking harmful electromagnetic waves generated inside the portable terminal device, prevents the operation of the wireless chip.

Above, the antenna coil arrangement design of the embedded wireless chip for the portable terminal device, which is not affected by the electromagnetic wave blocking, has been described as limited to the battery cover. However, this is only an example and thus the portable terminal is operated in the same manner from the technical concept of the present invention. It can be applied wherever the antenna coil can be mounted before and after the case.

On the other hand, it is possible to implement a non-contact data communication connection device of a portable terminal device which enables a non-contact wireless communication between the wireless chip and a PC by embedding a wireless chip in the portable terminal device.

The contactless data communication connection device of the portable terminal device is largely composed of a wireless connection pad 100 and a portable terminal device 200 incorporating a wireless chip.

The wireless connection pad 100 is supplied with a USB power source for supplying a coil 102 provided inside the pad 101 and an alternating current for magnetic induction coupling necessary for activating a wireless chip embedded in a portable terminal device. RF modulation and demodulation for performing RF modulation and serial transmission for contactless data communication between the inverter device 103 generating power and the portable terminal device embedded wireless chip activated by the induced electromotive force by the coil 102 and the PC 150. Device 105 and a USB converter 104.

The portable terminal device 200 is coupled to the coil 209 mounted inside the portable terminal device, and coupled to the coil 209 and connected to the RF reader program 152 in the PC in a non-contact manner via the coil. A portable terminal device embedded wireless chip 204 coupled to an internal data bus 220 by wire, an internal memory 202 and a removable external memory 203 of a portable terminal device coupled to an internal data bus of the portable terminal device, The internal controller 205 of the embedded wireless chip 204 includes a portable terminal device controller 201 for controlling the internal memory 202 or the removable external memory 203 of the portable terminal device to be recognized as a memory of the internal wireless chip. do.

The non-contact data communication connection device of the portable terminal device can recognize the internal memory and the external memory of the portable terminal device as the internal memory of the wireless chip in the non-contact wireless communication between the wireless chip of the portable terminal device and the PC. The internal memory capacity of the radio chip can be arbitrarily expanded.

1 is a block diagram of a first embodiment of a wireless connection pad of the apparatus of the present invention.

Figure 2 is a block diagram of a second embodiment of a wireless connection pad of the apparatus of the present invention.

Figure 3 is a block diagram of a third embodiment of a wireless connection pad of the apparatus of the present invention.

4 is an internal block diagram of a portable terminal device of the present invention.

5 is an exploded view of an embodiment of a portable terminal device to which the function of the present invention is applied.

6 is a cross-sectional view taken along the line A-A of FIG.

* Description of the symbols for the main parts of the drawings *

100: wireless connection pad 101: pad

102,102-1 ~ 102-4: Coil 103: Inverter

104: USB converter 105: RF modulator

106: USB connector 150: PC

151: USB connection port 152: RF reader program

200: portable terminal device 201: controller

202: internal memory 203: external memory

204: built-in wireless chip 205: controller

206: change and demodulation unit 207: memory

208: rectifier 209: coil

210: connection port 211: connection terminal

212: stop 213: internal battery

214: battery cover 215: resin layer

216: electromagnetic shielding layer

Claims (6)

In order to apply alternating current for magnetic induction coupling necessary for the wireless charging of the built-in battery of the portable terminal device and the activation of the wireless chip of the portable terminal device, the coil 102 provided inside the pad 101 and the coil are supplied with a USB power source or an external device. RF device demodulation and serial transmission are performed for the non-contact data communication between the inverter device 103 receiving DC power and generating AC power, and a wireless terminal embedded with a portable terminal device activated by induction electromotive force by the coil 102 and a PC. A wireless connection pad 100 including an RF modulator 105 and a USB converter 104; A coil 209 mounted inside the portable terminal device, a stop value 212 for rectifying the electromotive force induced in the coil, a built-in battery 213 charged with the DC voltage rectified by the stop value, and The portable terminal device comprising a; portable terminal device (200) including a built-in wireless chip 204 that is connected to the RF reader program in the PC in a non-contact way through the radio coupling of the coil 209 and the coil 102; Non-contact data communication and battery charging connection device. According to claim 1, wherein the coil 102 in the wireless connection pad 100 and the coil 209 in the portable terminal device 200, the wireless charging dedicated coil of the portable terminal device built-in battery 213 and the built-in portable terminal device, respectively Non-contact data communication and battery charging connection device of the portable terminal device, characterized in that the electrical separation or physical separation arranged so as to function independently as an activation-only coil of the radio chip (204). The portable terminal device controller according to any one of claims 1 to 4, wherein the portable terminal device built-in wireless chip 204 is coupled to the internal data bus 220 of the portable terminal device for contactless data communication between the portable terminal device and the PC. The controller 205 of the embedded wireless chip 204 is configured to recognize the portable terminal device internal memory 202 as a memory of the wireless chip under the control of 201. Charging interface. The portable terminal device controller according to any one of claims 1 to 4, wherein the portable terminal device built-in wireless chip 204 is coupled to the internal data bus 220 of the portable terminal device for contactless data communication between the portable terminal device and the PC. Under the control of 201, the controller 205 inside the embedded wireless chip 204 is configured to recognize the external memory 203 for the removable terminal device coupled to the internal data bus of the portable terminal device as the memory of the wireless chip. Contactless data communication and battery charging connection device of a portable terminal device. The coil 209 of the portable terminal device is mounted inside the battery cover 214 or inside the battery cover 214, wherein the coil is located on one side of the battery cover. The contactless terminal of the portable terminal device, characterized in that the connection terminal 211 for drawing and the portable terminal device on which the battery cover is to be mounted are provided with a connection port 210 for connection with the coil drawing connection terminal 211. Data communication and battery charging connection device. The method of claim 5, wherein the electromagnetic shielding layer toward the contact surface of the built-in battery 213 of the battery cover 214 through the coating or film for electromagnetic shielding on the inside of the battery cover 214, the coil 209 is mounted ( And a non-contact data communication and battery charge connection device for a portable terminal device, characterized in that it forms a 216.

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