KR20160121072A - The wireless antenna coil for the smart phone - Google Patents

Abstract

The present invention provides a wireless antenna coil for a smartphone, comprising: wireless energy reception coils capable of receiving wireless power energy; and wireless data reception coils capable of receiving wireless data. The wireless antenna coil for a smartphone further comprises a matching parts and mobile station modems (MSMs). Each coil is connected to each matching part. Each matching part is connected to each corresponding MSM. There are at least two wireless data reception coils. The two coils each have a different thickness. Intervals between the coils are different, and the coils each have a different number of turns. Therefore, at least three types of antenna coils can be mounted using a small area of a narrow area of the smartphone. The three types of antenna coils can be controlled using a minimized number of components. Moreover, a method for giving and taking data even in the middle of wireless charge is suggested.

Description

[0001] The present invention relates to a wireless antenna coil for a smart phone,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless antenna coil for a smartphone, and more particularly, to a smartphone including both an antenna coil for receiving power energy wirelessly and an antenna coil for receiving data wirelessly, And more particularly, to a wireless antenna coil for a smartphone that provides a technical structure for controlling the wireless antenna coil.

A technology has been developed in which an electronic device is equipped with a wireless transmitting and receiving unit to perform wireless charging. [0002] Recent mobile communication terminals have been developed in various forms, and accordingly, there have been various types of charging jacks in the form of various power chargers. However, these charging jacks have been standardized as a 24-pin charging jack to solve the compatibility problem between the chargers to the users.

However, this is still a considerable hassle and inconvenience to the users due to the limitation of the distance because the charging is performed through the cable between the charger and the device. In addition, when a plurality of terminals are charged with a single charger, there is a problem that the terminal may be damaged due to troubles due to manual attachment and detachment of the charger and the terminal jack, and wear and tear of the connection portion.

In addition, various types of data and information such as charging and information providing through smart phones are exchanged through short distance communication as well as wireless charging. NFC is a common method to exchange information at a short distance, and NFC is a non-contact type short-range wireless communication module using 13.56Mz frequency band as one of RFID tags, which means a technique of transmitting data between terminals at a distance of 10cm . In addition to billing, NFC is used extensively in supermarkets and general stores for transporting travel information for goods information and visitors, as well as traffic and access control locks.

Of course, a communication method for exchanging information in a short distance is not limited to the NFC method, and there are various methods.

In other words, various wireless charging methods and various short-range communication methods exist, and according to the multifunctionalization of the smart phone, it is possible to employ various methods of short-range communication as well as a wireless charging function. However, there is a need for a control algorithm of the structure of the components to effectively control the various antenna coils.

Of course, the prior art 1 (Korean Patent Registration No. 10-0928439) is provided so as to be positioned between the first upper core (coil) and the second upper core, and the control unit controls the signal transmitted from the non- , The first upper core and the second upper core, and transmits and controls a power signal through the corresponding core in accordance with the discrimination result.

Prior Art 2 (Korean Patent Registration No. 10-1279856) discloses a wireless power receiving coil for receiving power energy using non-contact magnetic induction and a component for outputting the power energy received from the wireless power receiving coil at a predetermined voltage The RF power receiving coil includes a ferrite sheet and an NFC coil coupled to an outer region of the ferrite sheet. The RF power receiving coil has an NFC coil, And a circuit path through which power energy received through the radio power receiving coil is transmitted is electrically connected to the ferrite sheet in a mutually insulated state while maintaining a spacing distance, And the ferrite sheet, the NFC coil and the radio power reception What is integrated wireless charging system for a receiver, it characterized in that the cell is provided in a portable terminal. " .

However, the above-mentioned patents do not suggest a placement method or a component method that can control and optimize antenna coils having different functions at a time.

Therefore, it is necessary to develop a wireless charging method that has a complex function and optimal design conditions.

Prior Art 1: Korean Patent No. 10-0928439. Registration date: November 18, 2009 Prior Art 2: Korean Patent No. 10-1279856. Registered: June 24, 2013

SUMMARY OF THE INVENTION It is an object of the present invention to effectively arrange the antennas in an area of a narrow smartphone when both an antenna coil capable of receiving wireless power energy and an antenna coil capable of receiving wireless data are mounted on the smart phone, An algorithm capable of effectively controlling a plurality of antennas, and a component capable of performing the algorithm.

The above object is achieved by a wireless communication system comprising a wireless energy receiving coil capable of receiving wireless power energy and a wireless data receiving coil capable of receiving wireless data and further comprising a matching part and an MSM, And the matching part is connected to the corresponding MSM, and the wireless data receiving coils are two or more. When the wireless energy or wireless data is received, the corresponding matching part is matched, and the MSM connected to the matched matching part is determined Algorithm is performed.

Then, when a wireless charge control command is executed or a match connected to the wireless energy receiving coil is matched, wireless charge information is transmitted, and the information to be transmitted is the battery charge balance.

In addition, one MSM is provided for each of the MSMs.

On the other hand, when the wireless energy is received, when receiving the wireless data, the reception of the wireless energy is terminated, the intensity of the wireless energy reception is reduced, or when the wireless data having the higher importance is received upon receiving the wireless data, And receives wireless data that is stopped and has high importance.

together. The MSM is replaced with a smartphone main chip.

According to the present invention, it is possible to mount at least three types of antenna coils in an area of a smartphone having a small area using a small area, to control the three or more kinds of antenna coils to be the least minimized parts, It also provides a way to send and receive data even during wireless charging.

1 is a view of an embodiment showing an antenna coil of the present invention.
2 is a diagram of an embodiment showing characteristics of a wireless energy receiving coil and a wireless data receiving coil.
Figures 3 and 4 are diagrams illustrating embodiments that illustrate a circuit for receiving wireless energy and a circuit for receiving wireless data.
5 to 7 are views of embodiments showing a block diagram of the present invention.
FIG. 8 is a view of an embodiment showing that information can be controlled through a screen in a smartphone under wireless charging.
9 is a diagram of an embodiment showing a flow diagram for receiving energy or data over the air.
10 to 14 are specific flowcharts executed when energy or data is received wirelessly.

Hereinafter, a design structure of a receiver for a wireless charging system according to an embodiment of the present invention will be described in detail.

In other words, the following merely illustrates the principles of the present invention. Thus, those skilled in the art will be able to devise various apparatuses which, although not explicitly described or shown herein, embody the principles of the invention and are included in the concept and scope of the invention.

It is also to be understood that the detailed description, as well as the principles, aspects and embodiments of the invention, as well as specific embodiments thereof, are intended to cover structural and functional equivalents thereof.

In addition, when the conventional technology is applied to the description of the present invention, the detailed description of common technology can be omitted.

1 is a view of an embodiment showing an antenna coil of the present invention.

Although the substrate is not shown in the drawings, it is a matter of course that the multi-coils of the present invention are provided on a flexible resin substrate or an ordinary substrate (for example, a plastic substrate, a plastic substrate, or a metal substrate). As shown in the figure, two wireless data receiving coils 51-1 and 51-2 capable of wirelessly receiving data in an outer portion are provided, and the data receiving coils 51-1 and 51-2 are provided with wireless And a radio energy receiving coil 52 capable of receiving the energy.

In general, the wireless data receiving coil 51-1 located at the outermost corner of the largest cell may be an NFC coil, but if necessary, the wireless data receiving coil 51-1 located immediately inside may be an NFC coil .

In addition, the antenna coil 52 (51-1) and (51-2) may be provided in the form of a spiral coil by directly winding a coil in the form of an electric wire such as copper, or a thin film A coil of a thin film shape formed through a through-hole).

Therefore, in the present invention, the substrate may be a base substrate (a substrate made of a metal or a resin or the like) for coating a loop coil, or may be a substrate for supporting only a loop coil. At this time, it is a matter of course that the substrate supporting the loop coil may be a substrate having a simple meaning for fixing the spiral coil to a plate (a flexible plate made of metal, resin, resin, or the like). That is, the spiral coil may be attached to the substrate with a tape or an adhesive.

The lead wires 52a, 52b, 51-1a, and 51-2a are connected to external circuits to form an electric circuit.

2 is a diagram of an embodiment showing characteristics of a wireless energy receiving coil and a wireless data receiving coil.

In the present invention, a multi-coil substrate having both a wireless energy receiving coil and a wireless data receiving coil is mounted on a smart phone. In addition, two or more wireless data receiving coils may exist.

The type and intensity of the wireless electric field received by the wireless energy receiving coil is different from the type and intensity of the wireless electric field received by the wireless data coil. Therefore, the thickness W of the wireless energy receiving coil becomes larger than the thickness W of the wireless data receiving coil, and the coil resistance must be low enough to receive a large amount of energy.

On the other hand, the number of turns T1 (T2) (T3) of the wireless energy receiving coil 52 is also greater than the number of turns of the wireless data receiving coil.

The thickness W of the first wireless data receiving coil 51-1 should be different from the thickness W of the second wireless data receiving coil 51-2 among the wireless data receiving coils, And the gap G between the coil and the coil must be designed differently. The type and intensity of the battery field that the first wireless data coil should receive are different from the type and intensity of the electric field that the second wireless data coil must receive.

In the present invention, Zigbee, which is a communication module that provides a multi-coil and exchanges signals with each other as needed, a control unit that controls each signal and a part by a predetermined program, And the like. At this time, the converter can increase or decrease the voltage depending on the situation, and likewise can increase or decrease the amount of power.

In FIG. 1, although only one wireless energy receiving coil 52 is illustrated, two types of wireless energy receiving coils may be provided. If this is the case, then two matching parts associated with the radio energy receiving coil will be required, namely a WPC (one of the wireless energy transfer schemes) Matching Part KTP (one of the wireless energy transfer schemes) Respectively. That is, there are two wireless energy receiving coils, one of which is a WPC type coil and the other is a KTP type coil, and a function of selecting one of the above two modes to receive power energy is a matching part.

That is, matching each coil inductance with each inductance is a function of the matching part.

Figures 3 and 4 are diagrams illustrating embodiments that illustrate a circuit for receiving wireless energy and a circuit for receiving wireless data.

3 is a block diagram showing a receiving unit, which includes a control unit 10 for controlling respective signals and components by a predetermined program, and a charging circuit (not shown) for charging the battery or the like by matching the voltage or power to the battery voltage of the final cellular phone 100 12 are provided. There is also provided a rectifier 10a for converting AC into DC.

In the meantime, a feature of the present invention is that a sensor 13 for detecting a frequency value of a coil or the like is provided. However, the present invention is not limited to sensing the frequency value. The MCU 10 senses the frequency value of the coil sensed by the sensor 13. When the MCU 10 senses the frequency value of the coil sensed by the sensor 13, For example, the KTP method or the WPC method).

In the present invention, the switching element (S / W) 14 selects a coil suitable for the charging method. In addition, the wireless charging receiver system may include other components as well as the components shown in FIG. 3, but those not related to the direct description of the present invention are omitted.

Actually, the distance between the charging WPC system and the magnetic resonance system becomes the optimal charging condition (the distance between the transmission coil and the reception coil) becomes different. Therefore, according to the present invention, the optimum charging method is automatically selected according to the distance between the transmitting coil and the receiving coil. At this time, although it can be controlled through the switching device 14, it goes without saying that the MCU 10 can directly perform the switching control.

4 is a diagram of an embodiment of a circuit of a wireless data receiving coil and a wireless energy receiving coil.

In general, the NFC coil 51 (51-1 or 51-2 in FIG. 1) remains on. maintaining the on state means that the module that controls the NFC coil 51 is always connected.

However, when the wireless rechargeable coil 52 transmits wireless power reception energy, the NFC coil is maintained in the off state. At this time, maintaining the off state means that the connection between the NFC coil and the module controlling the NFC coil is cut off.

The process of supplying the power energy received by the coil 52 to the battery 60 of the portable terminal is similar to that of the previous embodiment. However, the data received through the NFC coil is transmitted to the main CPU 110 of the smart phone through a separate path.

As shown in the drawing, the receiving coil 52 and the NFC coil 51 are provided, and the two coils are separated in a circuit. Therefore, the control unit 10 for controlling the wireless power receiving unit and the NFC module 20 for controlling the NFC coil 51 are separately provided. In this case, being separately provided means that the functions are separated, so that the controller 10 and the NFC module 20 may be separate components or functions can be distinguished from one component.

Therefore, the precise meaning of the two paths is that the connection line from the coil 51 to the control unit 10 and the connection line from the NFC coil 51 to the NFC module 20 are separated from each other. The NFC module 20 is an NFC transmission module. The NFC transmission module includes an analog interface, an R / F level interface, a card mode detector, and the like. And the like.

In general, NFC is a non-contact type short-range wireless communication module that uses 13.56Mz frequency band as one of RFID tags and transmits data between terminals at a distance of 10cm. In addition to billing, NFC is used extensively in supermarkets and general stores for transporting travel information for goods information and visitors, as well as traffic and access control locks.

The switch further includes a switch 14 which is capable of shutting off the connection under the control of the control unit 10 controlling the coil. When the connection is blocked by the switch 14, the function of the NFC coil 51 Is stopped.

As a result, when the controller 10 controls the wireless power receiving coil to receive the wireless power receiving energy, the controller 10 turns off the switch to stop the NFC function.

On the other hand, when the wireless power reception energy is received, a method of stopping the NFC function may be other than the method disclosed in the present invention. Most importantly, when the control unit 10 controls the receiving coil 51, it executes a control command to stop the NFC function.

However, it should be appreciated that the smartphone main CPU 110 shown in the embodiment of FIG. 7 of the present invention can perform the above switching control, and the MSM shown in FIG. 6 of the present invention can perform the above switching control. Do.

5 to 7 are views of embodiments showing a block diagram of the present invention.

As shown in Fig. 5, a matching part (a matching part in the previous embodiment of the present invention) has been described for each of the wireless energy receiving coil 52 and the wireless data receiving coils 51-1 and 51-2 The MSM1, MSM2, MSM3, 10, 20-1, 20-2 are connected to the matching part, .

In other words, the matching part 17 connected at the connection line 52a-1 connected to the wireless energy receiving coil 52 is connected to the wireless energy receiving coil 52, When the reception is detected, the controller (MSM) 10 connected to the above-mentioned part performs the wireless charging function according to a predetermined algorithm.

Similarly, when the matching parts 21-1 and 21-2 connected to the connection lines 51-1a and 51-1b connected to the wireless data receiving coil sense radio energy reception, the control part (MSM) 20 -1) 20-2 performs a control function based on the received data by a predetermined algorithm.

6 is a diagram of an embodiment of an integrated MSDM 30 that combines an MSM for receiving wireless energy and an MSM for receiving wireless data. In other words, although each function is different, it is possible to perform each function with a single collection.

FIG. 7 is a block diagram of a smart phone having a multi-antenna according to an embodiment of the present invention.

On the other hand, according to the type of data received wirelessly, an algorithm may be performed to store received data, display it on a display, or transmit it to another server. This function is executed by the main CPU 110 of the smartphone after receiving the information from the MSM. The smart phone generally includes a communication unit 114 and a display 112. An input device 113, a memory unit 111, and the like, and the above-described parts have a commonly used function.

FIG. 8 is a diagram of an embodiment showing that information can be controlled through a screen in a smartphone under wireless charging.

That is, in a smartphone that is being charged wirelessly on the charger 150, information is input through an input device 113 provided at the upper end of the display 112 of the smartphone, and a wireless data receiving coil (51-1) and (51-2) can be controlled.

9 is a diagram of an embodiment showing a flow diagram for receiving energy or data over the air.

When the smart phone function is started and wireless data or radio energy is received, the matching part is operated according to the previous embodiment of the present invention, the MSM is operated, and the MSM performs a predetermined algorithm.

10 to 14 are specific flowcharts executed when energy or data is received wirelessly.

10 is a diagram of an embodiment showing a general flow chart.

When the smartphone is activated and wireless data or wireless energy is received, a matching part corresponding to the received energy or received data is selected (S 220 - S 224).

In other words, it is the first step of the algorithm which is based on the fact that users do not distinguish whether wireless charging or wireless data reception can be automatically charged wirelessly and wireless data can be received if the user takes the smartphone as it is.

The wireless charging is performed when the user brings the smart phone to the wireless charger, and the wireless data reception is performed when the user brings the smart phone to the wireless data transmission device, and it is not necessary to designate the wireless charging energy reception and the wireless data reception in advance. Of course, in order to perform the above function, the wireless charging or wireless data reception is in the standby state (on state).

If it is not the wireless data reception by the operation of the matching part, the wireless energy reception step is performed (228). If it is not the data to be connected to the server in the case of wireless data reception,

Then, the server transmits and receives data to and from the server according to a predetermined algorithm (S234). When the execution of the algorithm is completed, the entire step is terminated (S236-S238)

FIGS. 11 and 12 are views showing an embodiment of a wireless energy receiving step corresponding to step 228 in the embodiment of FIG.

Generally, a wireless charging system is composed of a transmitter that transmits power energy and a receiver that receives power energy. When a receiver sends a signal requesting power energy transmission to a transmitter, The driven transmitter detects the charge request signal and sends the charge signal to the receiver. That is, signals received through the general process in the receiver through the short-range communication module (such as ZigBee) are sent to the controller 10, and the controller 10 exchanges signals with the transmitter in a predetermined method (Steps 150 - 152)

Then, the mutual communication signals are exchanged by a predetermined method, and then the power is received (Step 153). In this case, the present invention provides a design structure capable of receiving different types of power sources.

That is, if the method of the transmitter can be distinguished based on the mutual local communication signal, the corresponding matching part is selected and activated, so that the coil connected to the matching part is activated. (Steps 154 and 160)

As a result, the control unit 10 receives power energy through the antenna loop coil connected to the matching part selected by the controller 10. That is, a signal that can distinguish the scheme from the mutual local communication signal may be included, and if the scheme is distinguished, the corresponding matching part can be directly selected. (The process can proceed from step 154 to step 160 in FIG. 11).

On the other hand, if the system can not be selected through the short-range communication signal, the system can be selected by analyzing the magnitude value of the wireless power energy transmitted from the transmitter. (Step 156 to Step 158) In the wireless energy charging method, voltage, frequency, impedance or inductance value are different according to the method, and the values are analyzed to determine what method is used. Then, the control unit 10 discriminates such a determination by a predetermined method. When the determination is completed, the corresponding matching part is selected (step 160)

The reason why the above determination can be performed by the control unit 10 is that the feature value for each method is previously stored in the control unit 10 or the memory (it is natural that a memory device is provided in order to perform a predetermined algorithm though not mentioned in the present invention). And determines which method is used based on the stored value.

When the corresponding matching part is selected and activated, the corresponding coil is also activated to receive the wireless power energy. (Step 162 to Step 164) Upon reception of the radio power energy through the energy-free receiving coil 52, the converter is controlled through the control unit 10 to generate a voltage of 5 V which allows the battery to be finally charged, (Step 166)

That is, the controller 10 determines the ratio of the converter to be converted according to the selected method, and converts the voltage or the power according to the ratio. Finally, the controller 10 outputs the final output voltage (Step 168) (60a) is charged.

Meanwhile, the receiver of the present invention is selected in such a manner as to determine what type of power energy is transmitted through the inductance, impedance, voltage, frequency, and communication code of the coil, .

And, "to convert the voltage or power according to the ratio to finally output (Step 168)" means that the value of the received voltage may be different. That is, it is possible to increase the total power energy by increasing the voltage, which means that the amount of power can be increased to enable faster charging, and in this case, the ratio of the voltage to be converted must be varied, It means that wireless energy charging is possible even with voltage.

In the present invention, data transmission and reception for wireless energy charging may be performed. At this time, information on the charging mode may be provided, but information on the charging status of the battery may also be provided.

That is, the algorithm of the next step can be further performed.

In the first case,

1) Wireless charging reception control (wireless charging control is performed in the input window 130 as in the embodiment of FIG. 8)

2) Data necessary for wireless charging according to step 152 is transmitted to the wireless charger through short-range communication.

Can be performed.

In another second case,

1) The receiving part detects radio energy reception.

2) Data necessary for wireless charging according to step 152 is transmitted to the wireless charger through short-range communication.

It is possible to perform the step of FIG.

At this time, the type of data to be transmitted to the wireless charger includes the charging state of the smartphone battery 60a. That is, since the battery is charged differently depending on whether the battery is in a discharged state, a 50% charged state, or a 70% charged state, this information is also provided. Thus, such charge state information will continue to be provided as charging progresses.

Fig. 12 is a diagram showing an embodiment showing a flow chart in the case where there are two coils capable of receiving radio energy. In the embodiment of FIG. 1, there is one coil that can receive radio energy, but in some cases, there are two coils that can receive radio energy. That is, the types of coils may be different depending on the manner in which wireless energy can be charged.

When the wireless charging is started, the power energy is transmitted and received (steps 100 to 102)

If you select the charging method manually, the corresponding antenna coil can be selected. (Steps 104 and 110). That is, a switch or a menu method (a method of selecting a manual method may be used, so that a detailed explanation of the manual selection method is omitted in the present invention)

When the charging mode is automatically selected, the charging signal of the receiving coils 52 and 51 is analyzed. Voltage analysis, frequency analysis, and impedance analysis. Then, the antenna coil is selected according to the analysis value. (Steps 104 and 110)

Then, the coil has a value corresponding to the analyzed voltage value, frequency value, impedance value, etc. (step 112). For example, if the frequency value is selected and the method is selected, Respectively.

Once such a scheme is established, surge transmission and reception occurs in the wireless power and the battery is charged.

13 and 14 illustrate an embodiment of the wireless data receiving step corresponding to step 232 in the embodiment of FIG.

13, when a wireless data reception or wireless data control command is input during the wireless charging (input window 130 according to the embodiment of FIG. 8), the wireless energy transmitter (wireless charger) (Signal transmission is carried out by a local short-distance communication method according to the previous embodiment of the present invention) (S 140 - 144)

Then, when a control command for stopping the reception of the wireless data or stopping the reception of the wireless data is performed, the wireless energy reception is performed and the wireless energy reception is completed (S 146 - 148)

However, if the wireless data reception is not interrupted and the control command for stopping wireless data reception is not performed,

On the other hand, if the result of step 142 is "No ", the process proceeds to step 148. [

Fig. 14 is a diagram of an embodiment in which priority is given to receiving different types of wireless data. The principle of the algorithm sequence is the same as in Fig. 13,

For example, when receiving general information as wireless data, if wirelessly receiving information related to authentication or approval, wireless reception of general information is interrupted.

That is, the present invention means that priority is also given to wireless energy reception or wireless data reception. This control is performed collectively by the main CPU 110 of the smartphone.

The highest priority is authentication and payment, then general information, and then radio energy reception,

That is, even if the wireless data is received from the wireless antenna, if the wireless data having the higher priority is received, the wireless charging is stopped or the strength of the wireless charging is weakened or the reception of the lower priority wireless information is stopped.

51: NFC coil 52, 53: Wireless charging coil (horn antenna)
10: control unit 110, 110a:
60: Cell phone 61: Cell phone case
70: Battery 80: Battery charging case
59: ferrite sheet 110b: NFC module
51: wireless data receiving coil 51-1: first wireless data receiving coil
51-1: second wireless data receiving coil 52: wireless energy receiving coil
52-1: first wireless energy receiving coil 10: MCU (MSM)
52-2: second wireless energy receiving coil 13: sensor
14; switch 10a: DC rectifier
12: DC constant voltage charging circuit 15; Charging part
16: Wireless charger communication module 17: Matching part
20: NFC MCU (MSM) 21-1, 21-2: Matching part
60: battery 100; Smartphone
110: smartphone main chip 111; The memory unit
112: display 113: input device
130: input window 150: charger

Claims (7)

A wireless energy receiving coil capable of receiving wireless power energy and a wireless data receiving coil capable of receiving wireless data, and further comprising a matching part and an MSM,
The matching parts are connected to respective coils and the matching parts are respectively connected to corresponding MSMs,
Wherein the wireless data receiving coils are two or more,
Wherein the two coils have different thicknesses of the coils and have different distances between the coils and the coils and different numbers of turns of the coils. The wireless antenna coil for a smartphone according to claim 1, wherein wireless charging information is transmitted when a wireless charging control command is issued or when a match connected to a wireless energy receiving coil is matched. The wireless antenna coil for a smartphone according to claim 1, wherein the information to be transmitted is a remaining amount of the battery. The wireless antenna coil for a smartphone according to claim 1, wherein one of the MSMs is provided. The wireless antenna coil for a smartphone according to claim 1, wherein when receiving the wireless energy, reception of the wireless energy is terminated or the intensity of the wireless energy reception is reduced. The wireless antenna coil for a smartphone according to claim 1, wherein when receiving wireless data having higher importance, the receiving wireless data is stopped and wireless data having high importance is received. The wireless antenna coil according to claim 1, wherein the MSM is replaced with a smartphone main chip.

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