KR101873848B1 - Portable communication device provided with an optical authentication unit for wireless charging - Google Patents

Abstract

The present invention relates to a portable device for communication having an optical authentication unit for wireless charging. The portable device for communication having an optical authentication unit for wireless charging comprises: a device body which is placed on a cradle of a wireless charger with a light emission unit, a light analysis unit, and a transmission coil unit, and has a reception coil unit and a battery embedded therein; and an authentication unit which is fixed on an outer surface of the device body, reflects light entering from the light emission unit to guide the light towards the light analysis unit, and forms a layered structure of coating layers having different material properties. Since the portable device for communication having an optical authentication unit for wireless charging has an optical authentication unit for verifying uniqueness of a portable device, the uniqueness can be checked by an authentication checking device capable of reading optical property information. Therefore, wireless charging is possible even in a completely discharged state to perform stable wireless charging.

Description

[0001] The present invention relates to a portable communication device provided with an optical authentication unit for wireless charging,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a communication portable device, and more particularly, to a portable communication device having an optical authentication unit for wireless charging in which wireless charging is performed through an authentication process using an optical principle.

Charging of a battery built in various communication portable apparatuses is mostly carried out using a charging cable. For example, a power outlet installed on a wall of a room and a terminal provided in a portable device are wired using a charger to apply power to the battery.

However, such a wired charging method has inconveniences such as having to carry the charger together with the portable device, and fitting the charger into the charging terminal at the time of charging. In addition, since the terminal for charging is exposed in the case of a portable device, physical damage to the terminal is possible, and the charging terminal may be exposed to moisture, and the charging power may be lost.

In order to solve the inconvenience of the wire charging system, a wireless charging system employing a wireless charging system has been developed and used.

A magnetic induction type and a self-resonance type are known as the wireless charging type. The magnetic induction type charging employs an electromagnetic induction principle in which a magnetic field is generated in a part of a transmitting coil, and electricity is induced in a receiving coil part by the influence of the magnetic field .

That is, for example, a current is applied to a part of the transmission coil formed by winding a copper wire to realize a strong magnetic field around the transmission coil part, and the magnetic field is transmitted to the reception coil part, whereby the reception coil part receives the influence of the magnetic field, To charge the battery. The transmission coil portion is provided in the wireless charging pad, and the reception coil portion is provided on the portable device side.

On the other hand, the self-resonance type charging uses a principle of generating a magnetic field that oscillates at a resonance frequency in a transmitting coil part and transferring energy to a receiving coil part designed with the same resonance frequency intensively. That is, the energy is transmitted by using the resonance phenomenon between the coils. Such self-resonant wireless charging uses the resonance frequency to transmit magnetism to a matching frequency, so that charging can be performed even if the transmitting side and the receiving side are not close to each other.

On the other hand, the wireless charger for charging portable devices includes a charging pad (hereinafter referred to as a cradle). The cradle provides a stationary surface on which the portable device is placed and has a transmitting coil part inside. The portable device mounted on the cradle is wirelessly charged by interaction with the transmitting coil part.

However, when using one cradle, other portable devices other than the portable device to be charged can be charged. That is to say, other portable devices other than the portable device to be charged originally may be charged without discrimination. This may cause various problems, requiring the need to configure the portable device to be charged only.

As a conventional technique for authenticating a portable device, there has been a method of identifying a portable device through communication, determining a position thereof, or using an RFID, a bar code or a QR code. However, It would be meaningful when it remained, but it could not be authenticated if it was completely discharged. Moreover, the method using RFID, bar code or QR code was inconvenient because it was impossible to locate the mobile phone itself.

Korean Patent Registration No. 10-0586958 (Optical fingerprint authentication system with wide contact surface of fingerprint) Korean Patent Laid-Open Publication No. 10-2016-0130837 (Guangdong disk authentication by interference fingerprinting)

The present invention has been made in order to solve the above problems and has an optical authentication unit for verifying the uniqueness of the portable device, so that the uniqueness can be confirmed through an authentication confirmation device capable of reading optical characteristic information, And it is an object of the present invention to provide a portable communication device provided with an optical authentication unit for wireless charging which enables wireless charging and enables stable wireless charging.

According to an aspect of the present invention, there is provided a communication portable device provided with an optical authentication unit for wireless charging, the portable communication device comprising: a cradle of a wireless charger having a light irradiation unit, A built-in main body; And an authentication unit which is fixed to an outer surface of the main body of the apparatus and reflects the light incident from the light irradiation unit and guides the light to the light separation unit side and forms a laminated structure of coating layers having different physical properties.

In addition, the coating layer may include concave and convex portions.

In addition, the apparatus main body is equipped with a protective cover for partially covering and protecting the apparatus main body, and the authentication unit can be adhered and fixed to the outer surface of the protective cover.

In addition, the authentication unit may include: A first coating layer laminated and fixed on the surface of the apparatus main body; and a second coating layer laminated on the first coating layer and having a higher refractive index than the first coating layer.

Also, the first coating layer has a certain thickness, and the second coating layer has a convex curved shape at the center thereof.

In addition, the first coating layer has a concave curved shape at its central portion, and the surface of the second coating layer has a planar shape.

In addition, the concave-convex portion may have a wave pattern or a saw-tooth pattern in its cross-sectional shape.

In addition, the device body may be provided with a marking portion reflecting the shape of the light reflected by the authentication portion.

Since the communication portable device provided with the optical authentication unit for wireless charging according to the present invention has the optical authentication unit for verifying the uniqueness of the portable device, the authentication confirmation device capable of reading the optical characteristic information allows the uniqueness Therefore, even if the battery is completely discharged, the battery can be charged wirelessly, so that stable wireless charging can be performed.

FIG. 1 is a configuration diagram showing a portable communication device provided with an optical authentication unit for wireless charging, together with a wireless charging device according to an embodiment of the present invention.
Fig. 2 is an enlarged view for explaining the structure and operation of the authentication unit in the portable device shown in Fig. 1. Fig.
3 is a diagram showing another example of a portable communication device provided with an optical authentication unit for wireless charging according to an embodiment of the present invention.
Fig. 4 is a diagram for explaining the structure and operation of the authentication unit in the portable device shown in Fig. 3;
5 is a block diagram showing another example of a portable communication device provided with an optical authentication unit for wireless charging according to an embodiment of the present invention.
Fig. 6 is an enlarged view for explaining the configuration and operation of the authentication unit in the portable device shown in Fig. 5;
7 to 11 are views showing various modified examples of a portable communication device provided with an optical authentication unit for wireless charging according to an embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor can properly define the concept of the term to describe its invention in the best way Should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Throughout the specification, when an element is referred to as being "comprising" or "comprising" an element, it is meant that the element may include other elements, . Also, the terms " part, "" module, "and" device " Lt; / RTI >

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the portable communication device 10 according to the embodiment of the present invention to be described later has the basic structure of the device body 12 and the authentication unit 34. [ The device body 12 waits in a state of being placed on the cradle 32 of the wireless charger 50 and is an object to be wirelessly charged after the authentication is completed. The authentication is in accordance with an optical method.

That is, light is applied to the authentication unit 34 stacked on the apparatus main body 12 and the optical characteristics of the reflected light are analyzed to determine whether the analyzed optical characteristics correspond to the stored optical characteristics will be. The stored optical characteristics are information previously stored in a separate memory.

FIG. 1 is a configuration diagram showing a communication portable device 10 provided with an optical authentication unit 20 for wireless charging together with a wireless charger 50 according to an embodiment of the present invention.

As shown in the figure, the portable communication device 10 according to the present embodiment includes a main body 12 having a receiving coil part 12a and a battery 12b therein, And a sheet-type authentication unit 20 having a sheet-type authentication unit.

The device main body 12 is a portable communication terminal including a smart phone, a tablet PC, a charging type radio, and the like. In particular, the receiving coil part 12a is built in the device body 12 in addition to the battery 12b. The receiving coil part 12a corresponds to the transmitting coil part 40 to be described later and receives power from the transmitting coil part 40 to generate power to charge the battery 12b.

The authentication unit 20 is a sheet-like member fixed to the outer surface of the apparatus main body 12 and reflects light incident from the light irradiation unit 34a to be described later and guides the light to the light separation unit 34b side. Directing the light to the light splitting portion 34b allows the light splitting portion 34b to determine its own optical characteristics. The structure, shape and size of the authentication unit 20 can be variously changed as long as these functions can be performed.

The authentication unit 20 is a laminate composed of a first coating layer 21 and a second coating layer 23. The authentication section 20 takes the form of a thin sheet and is fixedly attached to an appropriate point of the apparatus main body 12. [ That is, one side surface of the main body 12 may be entirely covered or partially covered. In addition, the fixing method of the authentication unit 20 with respect to the device body 12 can be variously changed.

The first coating layer 21 and the second coating layer 23 have different physical properties or different geometrical properties. For example, the first coating layer 21 may be a transparent coating layer having a low refractive index, and the second coating layer 23 may be a transparent coating layer having a high refractive index. The thickness of the authentication unit 20 can be made 1 mm or less.

In the authentication unit 20, the refractive index of the first coating layer 21 is lower than that of the second coating layer 23. The reason why the refractive index is differentiated as described above is to induce the total reflection of the incident light incident on the authentication unit 20. [ In some cases, the first coating layer 21 itself may be used as a reflector.

As described above, the configuration of the authentication unit 20 can be variously modified, and a description of the modified example will be given later.

On the other hand, the portable device 10 having the above-described configuration requires an authentication device for reading out its optical information. It is a matter of course that the authentication of the portable device 10 can be carried out in the presence of the authentication device. The authentication device may be installed in the wireless charger 50 as the authentication confirmation device 30, as shown in Fig.

Referring to FIG. 1, an authentication confirmation device 30 and a transmitting coil part 40 are installed in the wireless charger 50.

The authentication confirmation device 30 will now be described. The authentication confirmation device 30 includes a box type cradle 32 and an optical information acquisition unit 34 installed in the cradle 32, a memory unit 39, a control unit 35 and a power source 31 . The power source 31 guides the power applied from the outside to the control unit 35.

The cradle 32 has an internal space and serves to support the portable device 10 to be charged. The user places the portable device 10 to be charged on the cradle 32. At this time, it is preferable that the receiving coil part 12a built in the portable device 10 is arranged so as to correspond to the transmitting coil part 40. [

A groove 32a is formed on one side of the upper surface of the cradle 32. [ The groove portion 32a is a depression that opens to the top of the cradle 32 and accommodates the optical information obtaining portion 34 therein. The reason for forming the groove portion 32a in this manner is to secure the minimum space of the optical information obtaining section 34 with respect to the authentication section 20 of the portable device 10. [ That is, to allow the optical information obtaining section 34 to be separated from the authentication section 20 to some extent. Light irradiation and light analysis may not be performed properly if the light irradiating unit 34a and the light analyzing unit 34b constituting the optical information obtaining unit 34 are in close contact with the authenticating unit 20. [

The optical information acquisition section 34 includes a light irradiation section 34a and a light integration section 34b. The light irradiation unit 34a irradiates light toward the authentication unit 20 of the portable device 10, that is, the first and second coating layers 21 and 23. The light separation unit 25 reflects light from the authentication unit 20 And analyzes the light characteristics of the emitted light. The light may be infrared, ultraviolet, visible, or the like.

Particularly, light emitted from the light irradiating unit 34a and irradiated to the authentication unit 20 in an oblique direction passes through the second coating layer 23 and the first coating layer 21 and is converted do. The converted light is transmitted to the light splitting portion 34b as converted light having unique characteristics reflecting the refractive index, thickness and shape of the first and second coating layers 21 and 23 themselves. The converted light has characteristics unique to the product as if the fingerprints of a person are different.

As described above, the light reflected by the authentication unit 20 undergoes a directional change, a wavelength change, a refraction, and a dispersion process by the reflection direction, the wavelength change and the refraction angle, It is possible to determine the identity inherent to the authentication unit 20.

On the other hand, the memory unit 39 is a portion to which unique optical characteristic information of the portable device 10 to be authenticated is input. As described above, the converted light source that has entered the optical analyzing unit 34b has characteristics such as human fingerprint, so it can be coded and stored and utilized in advance.

The control unit 35 controls the optical information acquisition unit 34, the memory unit 39, and the transmission coil unit 40. The power source 31 is connected to the control unit 35 through a power line, and causes the control unit 35 to apply power to the transmission coil unit 40.

The transmission coil unit 40 is a wireless charging unit that is operated by a control unit and performs wireless charging for the portable device 10 according to the analysis result of the control unit 35. [ As described above, the transmitting coil part 40 corresponds to the receiving coil part 12a built in the portable device 10 in a one-to-one correspondence.

In particular, the control unit 35 compares the optical characteristic information received through the optical analyzing unit 34b with the optical characteristic information stored in the memory unit 51, and determines whether to operate the transmitting coil unit 40. [ When the transmission coil part 40 is operated by the control part 35, the wireless charging of the portable device 10 proceeds and when the transmission coil part 40 is not operated, the charging of the portable device 10 is not performed .

The wireless charging scheme may be a magnetic induction scheme or a self-resonance scheme. Whether the wireless charger 50 is used in a self-induction manner or in a self-resonant manner is determined by varying the internal circuit configuration. In some cases, the internal circuit configuration may be changed so that one wireless charger 50 can also be used as a magnetic induction type or magnetic resonance type wireless charger.

Fig. 2 is an enlarged view showing a part of the authentication unit 20 provided in the portable device 10 shown in Fig.

As shown in the figure, a first coating layer 21 is laminated on the surface of the device body 12, and a second coating layer 23 is laminated on the first coating layer 21. The first and second coating layers 21 and 23 are in close contact with each other and function as the authentication unit 20 described above.

3 is a diagram showing a communication portable device 10 provided with an optical authentication unit 20 for wireless charging according to an embodiment of the present invention together with a wireless charger 50. Fig. 1 is an enlarged view of an authentication unit in one portable device 10. Fig.

Hereinafter, the same reference numerals as those of the above-mentioned reference numerals denote the same members having the same function.

3 and 4, the light irradiating unit 34a and the light splitting unit 34b are disposed on the opposite sides with the portable device 10 interposed therebetween, and the authentication unit 20 of the portable device 10 As shown in FIG.

Particularly, the authentication unit 20 includes a first coating layer 21 having a predetermined thickness and a second coating layer 23 positioned at an upper portion of the first coating layer 21 and having a curved central portion. It is a convex shape as a whole.

The light irradiated in the horizontal direction by the light irradiating unit 34a passes through the second coating layer 23 and is refracted. Then, the light is reflected by the first coating layer 21, passes through the second coating layer 23, And is irradiated onto the light-splitting portion 34b as converted light. The optical splitting unit 25 grasps the characteristics of the incident converted light and transmits the grasped information to the control unit 35 to determine whether to charge the light.

5 is a view showing a portable communication device 10 having an optical authentication unit 20 for wireless charging together with a wireless charger 50 according to an embodiment of the present invention. And is an enlarged view for explaining the configuration and operation of the authentication unit 20 shown in the figure.

As shown in the figure, a light-splitting portion 34b may be disposed at a vertical lower portion of the authentication unit 20, and a light irradiation unit 24 may be provided at a lower portion of the light-splitting portion 34b. The light irradiating unit 24 irradiates light to the vertically upper portion so that the irradiated light is irradiated to the authenticating unit 20, and the converted light is transmitted to the light integrating unit 34b.

Particularly, in the authentication unit 20, the first coating layer 21 is concave at the center, and the second coating layer 23 has a flat surface. The light irradiated upward from the light irradiating unit 34a passes through the second coating layer 23, is reflected on the concave surface of the first coating layer 21, and then is concentrated at the center to be collected in the light collecting unit 34b. The light collected in the light splitting unit 34b has a characteristic value reflecting the characteristics of the authentication unit 20 and is transmitted to the control unit 35 to cause the control unit 35 to determine whether or not to charge the light.

7 to 11 are views showing various modified examples of a portable communication device provided with an optical authentication unit for wireless charging according to an embodiment of the present invention.

The portable communication device 10 shown in Figs. 7 to 11 can be used together with the wireless charger 50 described above, and has various types of authentication units 20.

First, the authentication unit 20 shown in Fig. 7 is composed of a first coating layer 21 having a wavy pattern and a second coating layer 23 covering the first coating layer 21. The first coating layer 21 is composed of a curved protrusion 21b spaced apart in parallel at regular intervals and a curved groove 21a between the curved protrusions 21b. It goes without saying that the pitch and size of the curved protrusions 21b are different for each product. The second coating layer 23 covers the first coating layer 21 and its surface takes the form of a flat plane.

The light irradiated from the light irradiating unit 34a is guided to the light splitting unit 34b in a state where the light is reflected by the authentication unit 20 including the wavy pattern as described above and then converted into the converted light.

Referring to FIG. 8, it can be seen that a sawtooth pattern is formed in the first coating layer 21 which is in close contact with the authentication unit 20. That is, the first coating layer 21 has serrated protruding portions 21d and serrated grooves 21c formed at regular intervals in the surface thereof. Naturally, the pitch distance of the serrated projection 21d is changed. In order to prove the uniqueness of the individual portable device 10, the pitch interval should naturally vary.

The light emitted from the light irradiating unit 34a is guided to the light splitting unit 34b in a state where the light is reflected by the authentication unit 20 including the saw tooth pattern and then converted into the converted light. As described above, the optical splitting unit 34b compares the incident converted light with the information of the above-mentioned memory unit 39 and transmits the result to the control unit 35. [

The authentication unit 20 shown in Fig. 9 has a concentric protrusion 21f and a concentric groove 21e in the form of a concentric circle. The concentric protrusion 21f and the concentric groove 21e are covered with the second coating layer 23 as a pattern formed in the first coating layer 21.

The light irradiated from the light irradiating part 34 hits the concentric protruding part 21f and the concentric groove part 21e and is converted into a specific type of converted light and then guided to the light integrating part 34b.

Referring to FIG. 10, it can be seen that the marking portion 21k is positioned between the authentication unit 20 and the apparatus main body 12. FIG. The marking unit 21k is a character, a figure, a bar code or a QR code, and is marked on the surface of the apparatus main body 12 through various printing methods and serves as a unique marking unit.

The marking unit 21k reflects the shape of the light reflected by the authentication unit 20 so as to allow the light integrating unit 34b to move the cradle 32 up to the cradle 32, . Since the light emitted from the light irradiating unit 34a reaches the marking unit 21k at a different amount from the light reflected from the marking unit 21k, 0.0 > 21k. ≪ / RTI >

The marking portion 21k may be used alone or in combination with the authentication portion 20 whose surface is deformed, such as the curved groove portion or the serrated groove portion. The authentication process can be performed through the marking unit 21k in addition to the authentication process of the portable device according to the optical principle based on the shape of the authentication unit 20 stacked on the portable device 10. [

11, it can be seen that the apparatus main body 12 is filled with the protective cover 13, and the authentication unit 20 is located on the outer surface of the protective cover 13. The protective cover 13 may be a protective cover that is inserted into the smartphone, for example, as a shock-absorbing cover for receiving the portable device 10 therein to protect it from impact. The authentication unit 20 attached to the outer surface of the protective cover 13 is fixed to the protective cover 13 and performs the same function as described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: portable device 12: device body 12a: receiving coil part
12b: battery 13: protective cover 20: authentication unit
21: first coating layer 21a: curved groove portion 21b: curved projection
21c: serrated groove portion 21d: serrated protrusion 21e: concentric groove portion
21f: concentric protrusion 21k: marking portion 23: second coating layer
30: authentication confirmation device 31: power source 32: cradle
32a: groove portion 34: optical information acquiring portion 34a:
34b: light splitting section 35: control section 39: memory section
40: transmitting coil part 50: wireless charger

Claims (8)

An apparatus body placed on a cradle of a wireless charger equipped with a light irradiation unit, a light splitting unit, and a transmission coil unit, and having a receiving coil part and a battery therein;
And an authentication unit which is fixed to an outer surface of the main body of the apparatus and reflects the light incident from the light irradiation unit to guide the light to the light separation unit side and forms a laminated structure of coating layers having different physical properties,
The apparatus main body is equipped with a protective cover for partially covering and protecting the apparatus main body,
Wherein the authentication unit is provided with an optical authentication unit for wireless charging which is adhered and fixed to an outer surface of the protective cover. The method according to claim 1,
Wherein the coating layer is provided with an optical authentication unit for wireless charging including a concave-convex portion. delete The method according to claim 1,
Wherein the authentication unit comprises:
A first coating layer laminated and fixed on a surface of the main body of the apparatus,
And a second coating layer laminated on the first coating layer and having a higher refractive index than the first coating layer. 5. The method of claim 4,
Wherein the first coating layer has a predetermined thickness,
Wherein the second coating layer is provided with an optical authentication unit for wireless charging, the central portion of the second coating layer having a curved convex shape. 5. The method of claim 4,
Wherein the first coating layer has a concave curved shape at its central portion, Wherein the surface of the second coating layer is provided with an optical authentication unit for wireless charging taking the form of a plane. 3. The method of claim 2,
Wherein the convexo-concave portion is provided with an optical authentication portion for wireless charging, the cross-sectional shape of which has a wave pattern or a sawtooth pattern. The method according to claim 1,
Wherein the apparatus main body is provided with an optical authentication unit for wireless charging with a marking unit reflecting the shape of the light reflected by the authentication unit.

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