KR100638458B1 - Wireless communication terminal for transmitting and receiving signal in multi-mode - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a wireless communication terminal having a multi-mode transmission and reception function.

2. The technical problem to be solved by the invention

The present invention uses a single multi-band antenna as a traffic card antenna, an FM radio reception antenna, and a multimedia content transmission antenna by switching transmission and reception signals in different paths according to the mode of the wireless communication terminal. It is an object of the present invention to provide a wireless communication terminal having a multi-mode transmission and reception function for maximizing space efficiency.

3. Summary of Solution to Invention

The present invention provides a wireless communication terminal having a multi-mode transmission / reception function, comprising: a multi-band antenna for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal; Control means for controlling the selection means according to the mode of the wireless communication terminal; Selecting means for transmitting a transmission / reception signal according to a mode of the wireless communication terminal to a path corresponding to each mode under the control of the control means; A traffic card chip for operating the wireless communication terminal in a traffic card mode according to a traffic card related signal transmitted and received through the multi-band antenna; Radio reception means for receiving a radio signal received through the multi-band antenna or ear jack as the wireless communication terminal operates in a radio reception mode; The ear jack part for activating or deactivating an ear jack detection signal and outputting the ear jack detection signal according to whether the ear jack is inserted; And input means for receiving a mode discrimination signal from a user according to the mode of the wireless communication terminal.

4. Important uses of the invention

The present invention is used in a wireless communication terminal.

Multimode, Multiband Antenna, Switch, Traffic Card, Radio Reception, Multimedia Content Transmission, Wireless Communication Terminal

Description

Wireless communication terminal for transmitting and receiving signal in multi-mode             

1 is a configuration diagram of an embodiment of a wireless communication terminal having a multi-mode transmission and reception function according to the present invention;

2 is a diagram illustrating an example of a signal flow when the wireless communication terminal illustrated in FIG. 1 functions as a traffic card;

3A is a view for explaining a signal flow when operating in a radio reception mode when the ear jack is not connected to the wireless communication terminal of FIG. 1;

3B is a view illustrating a signal flow when operating in a radio reception mode when connecting an ear jack to the wireless communication terminal of FIG. 1;

4 is a diagram illustrating a signal flow when the wireless communication terminal of FIG. 1 operates in a multimedia content transmission mode;

5 is a configuration diagram of another embodiment of a wireless communication terminal having a multi-mode transmission and reception function according to the present invention;

6 is a configuration diagram of another embodiment of a wireless communication terminal having a multi-mode transmission and reception function according to the present invention.

* Explanation of symbols for the main parts of the drawings

110: multiband antenna 120: control unit

130: selector 131: first switch

132: second switch 133: third switch

134: fourth switch 140: traffic card chip

150: radio receiver 160: ear jack

170: multimedia content transmission unit 180: input unit

The present invention relates to a wireless communication terminal having a multi-mode transmission and reception function, and more particularly, one multi-band antenna for transmitting a transmission card antenna and FM radio by switching transmission and reception signals in different paths according to the mode of the wireless communication terminal. The present invention relates to a wireless communication terminal having a multi-mode transmission / reception function for maximizing space efficiency of a wireless communication terminal by using it as an antenna and an antenna for transmitting multimedia content.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal digital communication terminal (PCS), a personal digital terminal (PDA), a next generation wireless communication terminal (IMT-2000), a wireless LAN terminal, such as a smart phone while carrying a personal A terminal that can communicate.

Recently, a traffic card chip is embedded in a wireless communication terminal so that the wireless communication terminal can be used as a substitute for a traffic card. In order to use the wireless communication terminal as a substitute for a traffic card, a traffic card antenna is required, which is implemented in the form of a flexible printed circuit board (FPCB) on the back of the battery pack.

However, the antenna provided for the traffic card on the back of the battery pack can not be used as an antenna of other functions, there was a problem that the efficiency is lowered.

In addition, in order to receive a radio in a conventional wireless communication terminal, a radio receiving antenna is required separately. In the related art, a transmission wire of an ear jack is used as an antenna.

However, in the case of using the transmission wire of the ear jack as an antenna, when the ear jack is separated from the wireless communication terminal, it is very difficult to receive a radio. Therefore, there is a problem in that the ear jack should always be plugged in to listen to the radio.

In addition, an antenna capable of transmitting multimedia contents in a wireless communication terminal is not specially developed at present, and if it is developed for the purpose, it is determined that the size of the antenna is very large.

Recently, while the size of the wireless communication terminal is getting smaller, its function is becoming more complicated as the traffic card function, the FM radio reception function, and the multimedia content transmission function are added as described above.

Thus, in order to implement the above three functions (traffic card function, FM radio reception function, and multimedia content transmission function) simultaneously in one wireless communication terminal, three antennas (traffic card antenna, FM radio reception antenna, Antenna for transmitting multimedia content).

However, when three antennas are provided in one wireless communication terminal as described above, the size of the wireless communication terminal becomes very large and the manufacturing cost increases, and the structure of the wireless communication terminal itself becomes a very inefficient structure. Occurs.

The present invention has been proposed to solve the above problems, by switching the transmission and reception signals in different paths according to the mode of the wireless communication terminal, one multi-band antenna for the traffic card antenna, FM radio receiving antenna, and multimedia content transmission It is an object of the present invention to provide a wireless communication terminal having a multi-mode transmission and reception function for maximizing the space efficiency of the wireless communication terminal by using it as an antenna.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to an aspect of the present invention, there is provided a wireless communication terminal having a multi-mode transmission / reception function, comprising: a multi-band antenna for transmitting and receiving a corresponding signal according to a mode of the wireless communication terminal; Control means for controlling the selection means according to the mode of the wireless communication terminal; Selecting means for transmitting a transmission / reception signal according to a mode of the wireless communication terminal to a path corresponding to each mode under the control of the control means; A traffic card chip for operating the wireless communication terminal in a traffic card mode according to a traffic card related signal transmitted and received through the multi-band antenna; Radio reception means for receiving a radio signal received through the multi-band antenna or ear jack as the wireless communication terminal operates in a radio reception mode; The ear jack part for activating or deactivating an ear jack detection signal and outputting the ear jack detection signal according to whether the ear jack is inserted; And input means for receiving a mode discrimination signal from a user according to the mode of the wireless communication terminal.

In addition, the apparatus of the present invention, when the wireless communication terminal operates in the multimedia content transmission mode, the multimedia content for up-converting the baseband multimedia content to the RF multimedia content signal for delivery to the multi-band antenna through the selection means Characterized in that it further comprises a transmission means.

On the other hand, another apparatus of the present invention, a wireless communication terminal having a multi-mode transmission and reception function, a multi-band antenna for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal; Control means for controlling the selection means according to the mode of the wireless communication terminal; Selecting means for transmitting a transmission / reception signal according to a mode of the wireless communication terminal to a path corresponding to each mode under the control of the control means; A traffic card chip for operating the wireless communication terminal in a traffic card mode according to a traffic card related signal transmitted and received through the multi-band antenna; Multimedia content transmission means for up-converting baseband multimedia content into an RF multimedia content signal and radiating it through the multiband antenna as the wireless communication terminal operates in a multimedia content transmission mode; And input means for receiving a mode discrimination signal from a user according to the mode of the wireless communication terminal.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an embodiment of a wireless communication terminal having a multi-mode transmission and reception function according to the present invention.

As shown in FIG. 1, a wireless communication terminal having a multi-mode transmission / reception function according to the present invention includes a multi-band antenna 110, a controller 120, a selector 130, a traffic card chip 140, and a radio receiver ( 150, an ear jack 160, a multimedia content transmitter 170, and an input unit 180.

The multi-band antenna 110 serves to transmit and receive signals used in the corresponding mode according to the mode of the wireless communication terminal (transport card mode, radio reception mode, or multimedia content transmission mode).

That is, the wireless communication terminal transmits and receives a traffic card related signal when the wireless communication terminal operates in a traffic card mode, receives a radio signal when the wireless communication terminal operates in a radio receiving mode, and transmits multimedia content by the wireless communication terminal. When operating in the mode, the RF multimedia content signal is transmitted.

In this case, when the wireless communication terminal receives a traffic card related signal without an external input to operate in a traffic card mode, the wireless communication terminal operates in a traffic card mode, but operates in a radio reception mode and a multimedia content transmission mode. The distinguishing signal should be input through the input unit 180.

The controller 120 controls overall operations of the wireless communication terminal and controls the selector 130 according to the mode of the wireless communication terminal.

At this time, the controller 120 uses the first control signal output through the first GPIO port 1 and the second control signal output through the second GPIO port 2 according to each mode of the wireless communication terminal. The selector 130 is controlled. However, the control signal output from the controller 120 is not limited to the first control signal and the second control signal.

The selector 130 includes a first switch 131, a second switch 132, a third switch 133, and a fourth switch 134, and the wireless controller is controlled by the controller 120. It serves to switch the transmission and reception signals according to each mode of the communication terminal to a path corresponding to each mode.

Here, the first to fourth switches will be described using an example of a single pole double throw (SPDT) switch among various types of switches.

The SPDT switch is composed of one pole and two throws. The SPDT switch transmits a signal by switching to one of two throws according to a control signal.

The first switch 131 has one pole connected to the multi-band antenna 110 and two throws connected to the (-) terminal and the open terminal of the traffic card chip 140. It includes (Throw), and receives the first control signal output from the control unit 120 to switch to the (-) terminal or the open (OPEN) terminal of the traffic card chip 140 according to the mode of the wireless communication terminal It plays a role.

The second switch 132 may include one pole connected to the multi-band antenna 110, a positive terminal of the traffic card chip 140, and a pole of the third switch 133. It includes two throws (Throw) connected, and receives the first control signal output from the control unit 120 according to the mode of the wireless communication terminal (+) terminal or the third of the traffic card chip 140 It serves to switch toward the switch 133.

The third switch 133 has one pole connected to one throw of the second switch 132 and one throw and multimedia of the fourth switch 134. It includes two throws (Throw) connected to the RF output terminal of the content transmitter 170, and receives the second control signal output from the control unit 120 according to the mode of the wireless communication terminal the fourth switch ( 134 or switch to the multimedia content transmitter 170.

The fourth switch 134 has one pole connected to the radio receiver 150 and two throws and ear jacks 160 of the third switch 133. It includes a throw, and serves to switch toward the third switch 133 or the ear jack 160 according to whether the ear jack detection signal is activated.

Here, the ear jack detection signal is a signal indicating whether the ear jack is connected to the wireless communication terminal, the ear jack detection signal is activated when the ear jack is connected, the ear jack detection signal is deactivated when the ear jack is not connected. .

On the other hand, the traffic card chip 140 receives the traffic card-related signals transmitted and received through the multi-band antenna 110 serves to operate the wireless communication terminal in the traffic card mode.

In this case, the traffic card related signal is transmitted through the first switch 131 and the second switch 132 which are switched under the control of the controller 120.

The radio receiver 150 receives a radio signal received through the multi-band antenna 110 or the ear jack 160 as the wireless communication terminal operates in a radio reception mode.

At this time, the radio signal received through the multi-band antenna 110 and the first switch 131, the second switch 132, and the third switch 133 to switch under the control of the control unit 120 and The radio receiver 150 is transmitted to the radio receiver 150 through a fourth switch 134 which switches according to the ear jack detection signal. In this case, since the ear jack is not connected to the wireless communication terminal, the received radio signal is a voice output unit (speaker). Is output via

On the other hand, the radio signal received through the ear jack 160 is transmitted to the radio receiver 150 through the fourth switch 134, in which case the radio signal is output through the ear jack.

When the radio signal is received through the ear jack 160, the first, second, and third switches 131, 132, 133, and the multiband antenna 110 do not operate.

Meanwhile, as the ear jacks are connected, the ear jack 160 outputs an ear jack detection signal and transmits a radio signal to the radio receiver through the fourth switch 134.

In this case, since the transmission wire of the ear jack serves as an antenna for receiving a radio signal, the radio signal may be received even if the multi-band antenna 110 of the wireless communication terminal does not operate.

As the wireless communication terminal is in the multimedia content transmission mode, the multimedia content transmitter 170 up-converts the baseband multimedia content into an RF multimedia content signal and delivers the multiband antenna 110 through the selector 130. do.

At this time, the RF multimedia content signal output from the multimedia content transmitter 170 is transmitted to the multi-band antenna 110 through the third switch 133 and the second switch 132, and receives the multi-band antenna received 110 radiates the RF multimedia content signal.

On the other hand, the input unit 180 serves to receive a mode discrimination signal according to the mode of the wireless communication terminal.

That is, when a user wants to receive a radio signal using the wireless communication terminal, a user presses a shortcut key for a radio reception mode using a key button of the input unit 180 or accesses a radio reception menu to select a radio reception function. The wireless communication terminal is operated in a radio reception mode by using a scheme such as the above, and if the user wants to transmit the multimedia content stored in the wireless communication terminal to another electronic device, the wireless communication terminal is operated in the same manner. It operates in the transmission mode.

Accordingly, the wireless communication terminal having the multi-mode transmission / reception function of the present invention may operate in a radio reception mode or a multimedia content transmission mode by receiving a mode discrimination signal according to an external operation from a user through the input unit 180. It can be.

So far, the configuration of an embodiment of a wireless communication terminal having a multi-mode transmission / reception function according to the present invention has been described with reference to FIG. 1. 2 to 4 will be described the flow of signals that vary depending on the mode of operation of the wireless communication terminal of FIG. Here, the signal flow in each mode is indicated by a thick dotted line.

FIG. 2 is a diagram illustrating an example of a signal flow when the wireless communication terminal illustrated in FIG. 1 functions as a traffic card.

As shown in FIG. 2, when the wireless communication terminal of FIG. 1 operates in a traffic card mode, the first switch 131 and the second switch 132 are controlled by a first control signal output from the controller 120. Is switched to the (-) terminal of the transportation card chip 140 and the (+) terminal of the transportation card chip 140.

Then, the traffic card-related signal is transmitted and received through the multi-band antenna 110 to operate the wireless communication terminal in the traffic card mode.

At this time, the third switch 133 and the fourth switch 134 does not operate, the multi-band antenna 110 operates only as a traffic card antenna, the wireless communication terminal also operates only in the traffic card mode. In addition, when the wireless communication terminal operates in the traffic card mode, the traffic card-related signal is received through the multi-band antenna 110 without a separate mode discrimination signal, thereby determining the mode.

3A and 3B are diagrams illustrating an example of a signal flow when the wireless communication terminal of FIG. 1 operates in a radio reception mode, and FIG. 3A is a radio reception when no ear jack is connected to the wireless communication terminal of FIG. When operating in the mode, Figure 3b shows a case of operating in the radio reception mode when connecting the ear jack to the wireless communication terminal of FIG.

 As shown in FIG. 3A, when the wireless communication terminal of FIG. 1 operates in a radio reception mode when the ear jack is not connected, the first switch 131 and the second are controlled by the first control signal output from the controller 120. The switch 132 is controlled, the third switch 133 is controlled by the second control signal output from the controller 120, and the fourth switch 134 is controlled by the ear jack detection signal.

Looking at the operation in detail, when a radio signal is received through the multi-band antenna 110 of the wireless communication terminal, the first switch 131 is toward the open terminal according to the first control signal output from the control unit 120 The second switch 132 is switched to the third switch 133 according to the first control signal output from the controller 120 to transmit a radio signal to the third switch, and the second switch 132. The third switch 133 receiving the radio signal is switched to transmit the radio signal to the fourth switch 134 according to the second control signal output from the controller 120. Then, the radio signal is transmitted to the radio receiver 150 through the fourth switch 134 connected to one throw of the third switch 133 by the deactivated ear jack detection signal.

Since the radio receiver 150 receiving the radio signal does not have an ear jack connected to the wireless communication terminal, the radio receiver 150 outputs the received radio signal through a voice output unit (speaker).

FIG. 3B is a diagram illustrating an example of a signal flow when operating in a radio reception mode when an ear jack is connected to the wireless communication terminal of FIG. 1.

As shown in FIG. 3B, when receiving the radio signal while the ear jack is connected to the ear jack 160 of the wireless communication terminal according to the present invention, the fourth switch receiving the activated ear jack detection signal is received. Switching toward the jack 160 to transmit a radio signal transmitted through the ear jack 160 to the radio receiver 150.

In this case, the transmission wire of the ear jack connected to the ear jack 160 replaces the function of the radio receiving antenna.

4 is a diagram illustrating an example of a signal flow when the wireless communication terminal of FIG. 1 operates in a multimedia content transmission mode.

As shown in FIG. 4, when the wireless communication terminal having the multi-mode transmission / reception function according to the present invention performs a multimedia content transmission function, the first switch 131 is connected to the first control signal output from the control unit 120. The second switch 132 is controlled, and the third switch 133 is controlled according to the second control signal output from the controller 120.

Looking at the operation in detail, if the wireless communication terminal up-converts the baseband multimedia content to the RF multimedia content signal to output the multimedia content, and outputs the RF multimedia content signal is switched to the RF output terminal of the multimedia content transmitter 170. The third switch 132 is transmitted to the second switch 132, and the second switch 132 receives the RF multimedia content signal back to the multi-band antenna 110.

At this time, the first switch 131 is switched to the OPEN terminal according to the first control signal output from the controller 120, so that the RF multimedia content signal output from the multimedia content transmitter 170 is Radiated through the multi-band antenna 110.

So far, the configuration of the wireless communication terminal having a multi-mode transmission and reception function according to the present invention when operating in three modes (traffic card mode, radio reception mode, multimedia content transmission mode) and the flow of signals according to each mode Explained.

However, not all general wireless communication terminals operate in the three modes described above, and may operate in only two modes in which one mode is omitted from the three modes, or may operate in four or more modes by adding more modes. have.

Accordingly, in the wireless communication terminal having a different type of mode as described above, the selector 130 is changed accordingly, and the selector 130 is suitably numbered and positioned according to the type of the mode of the wireless communication terminal. Note that can be changed.

The following description will be given as an example of a wireless communication terminal operating in two modes (traffic card mode and radio reception mode, traffic card mode and multimedia content mode) as an embodiment other than the wireless communication terminal described with reference to FIGS. I'll do it.

5 is a configuration diagram of another embodiment of a wireless communication terminal having a multi-mode transmission and reception function according to the present invention, and is a view for explaining the configuration and signal flow of a wireless communication terminal operating in a traffic card mode and a radio reception mode.

As shown in Figure 5, the wireless communication terminal having a multi-mode transmission and reception function according to the present invention is a multi-band antenna 110 for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal, the mode of the wireless communication terminal The control unit 120 for controlling the selection unit 130 according to the control unit, and the selection unit for transmitting the transmission and reception signals according to the mode of the wireless communication terminal according to the control of the control unit 120 to the path corresponding to each mode ( 130, a traffic card chip 140 for receiving a traffic card-related signal transmitted and received through the multi-band antenna 110 to operate the wireless communication terminal in a traffic card mode, and the wireless communication terminal operates in a radio receiving mode. As such, the radio receiver 150 for receiving a radio signal received through the multi-band antenna 110 or the ear jack 160 and inserting the ear jack And an ear jack unit 160 for activating or deactivating and outputting an ear jack detection signal, and an input unit 180 for receiving a mode discrimination signal according to a mode of the wireless communication terminal.

Here, the selector 130 is a first switch 131 and a second switch controlled by the first control signal output from the controller 120 and a fourth switch controlled by the ear jack detection signal. 134.

 In this case, when the wireless communication terminal operates in the traffic card mode, the description thereof is the same as described above with reference to FIG.

In addition, when the wireless communication terminal performs a radio reception function when the ear jack is not connected, the radio signal received through the multi-band antenna 110 is directly applied without passing through the third switch 133 through the second switch 132. Since only the points transmitted to the four switches 134 are the same as those described with reference to FIG. 3A, the description thereof will also be omitted.

On the other hand, the description of the case of performing a radio reception function at the time of the ear jack connection to the wireless communication terminal is also the same as the above description of Figure 3b will be omitted.

6 is a configuration diagram of another embodiment of a wireless communication terminal having a multi-mode transmission / reception function according to the present invention, illustrating a configuration and signal flow when the wireless communication terminal operates in a traffic card mode and a multimedia content transmission mode. It is for the drawing.

As shown in Figure 6, the wireless communication terminal having a multi-mode transmission and reception function according to the present invention is a multi-band antenna 110 for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal, the mode of the wireless communication terminal The control unit 120 for controlling the selection unit 130 according to the control unit, and the selection unit for transmitting the transmission and reception signals according to the mode of the wireless communication terminal according to the control of the control unit 120 to the path corresponding to each mode ( 130, a traffic card chip 140 for receiving a traffic card-related signal transmitted and received through the multi-band antenna 110 to operate the wireless communication terminal in a traffic card mode, and the wireless communication terminal in a multimedia content transmission mode. In operation, the baseband multimedia content is up-converted into an RF multimedia content signal and the multiband is transmitted through the selector 130. It includes an antenna 110, a multimedia content transmitting unit 170 and input unit 180 for inputting a mode signal in accordance with a distinct mode of the radio communication terminal for communicating with.

Here, the selector 130 includes a first switch 131 and a second switch 132 controlled by a first control signal output from the controller 120.

In this case, when the wireless communication terminal operates in the traffic card mode, the description thereof is the same as described above with reference to FIG.

When the wireless communication terminal operates in the multimedia content transmission mode, the RF multimedia content signal, which is up-converted and output from the multimedia content transmitter 170, is transmitted to the multi-band antenna 110 through the second switch 132. At this time, the first switch 131 is switched to the open terminal.

Then, the multi-band antenna 110 radiates an RF multimedia content signal received from the multimedia content transmitter 170.

So far, a signal flow when the wireless communication terminal operates in three modes and in two modes has been described with reference to various embodiments.

However, the operation mode of the wireless communication terminal having the multi-mode transmission and reception function according to the present invention is not limited to the above.

Accordingly, as the mode of the wireless communication terminal is changed, it is understood that the selection unit 130 can be properly adjusted to enable the wireless communication terminal to operate in a corresponding mode.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The present invention as described above, by switching the transmission and reception signals in different paths according to the mode of the wireless communication terminal can be used as a multi-band antenna as a traffic card antenna, radio reception antenna, and multimedia content transmission antenna, etc. Thereby, it is possible to maximize the space efficiency of the wireless communication terminal, there is an effect that can lower the unit cost of the product.                     

On the other hand, the present invention, unlike the conventional wireless communication terminal that can listen to the radio only by inserting the ear jack has the effect of listening to the radio regardless of whether or not the ear jack is inserted.

Claims (15)

In a wireless communication terminal having a multi-mode transmission and reception function, A multiband antenna for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal; Control means for controlling the selection means according to the mode of the wireless communication terminal; Selecting means for transmitting a transmission / reception signal according to a mode of the wireless communication terminal to a path corresponding to each mode under the control of the control means; A traffic card chip for operating the wireless communication terminal in a traffic card mode according to a traffic card-related signal transmitted and received through the multi-band antenna; Radio reception means for receiving a radio signal received through the multi-band antenna or ear jack as the wireless communication terminal operates in a radio reception mode; Followed by the ear jack to enable or disable the detection signal depending on whether the jack insert for outputting onto the group selecting means after jaekbu; And Input means for receiving a mode discrimination signal from a user according to a mode of the wireless communication terminal Wireless communication terminal having a multi-mode transmission and reception function comprising a. The method of claim 1, The selection means, First switching means switched to a (-) terminal or an open terminal of the traffic card chip according to the control of the control means; Second switching means switched to a positive terminal or a third switching means of the traffic card chip according to the control of the control means; And The third switching means switched to the ear jack part as the ear jack detection signal received from the ear jack part is activated, and switched to the second switching means as the ear jack detection signal is deactivated. Wireless communication terminal having a multi-mode transmission and reception function comprising a. The method of claim 2, As the wireless communication terminal operates in the traffic card mode, the first switching means switches to the negative terminal of the traffic card chip under the control of the control means, and the second switching means controls the control means. And the third switching means does not operate. The wireless communication terminal having a multi-mode transmission / reception function according to claim 1, wherein the third switching means does not operate. The method of claim 2 or 3, As the wireless communication terminal operates in a radio reception mode, the first switching means is switched toward the open terminal under the control of the control means, and the second switching means is directed to the third switching means under the control of the control means. And the third switching means is switched toward the ear jack part as the ear jack sensing signal is activated, and is switched to the second switching means as the ear jack sensing signal is deactivated. Wireless communication terminal. delete The method of claim 1, As the wireless communication terminal operates in the multimedia content transmission mode, the multimedia content transmission means for up-converting the baseband multimedia content into an RF multimedia content signal and delivering the same to the multiband antenna through the selection means. Wireless communication terminal having a multi-mode transmission and reception function further comprising. The method of claim 6, The selection means, First switching means switched to a (-) terminal or an open terminal of the traffic card chip according to the control of the control means; Second switching means switched to a positive terminal or a third switching means of the traffic card chip according to the control of the control means; The third switching means switched to the fourth switching means or the multimedia content transmitting means according to the control of the control means; And The fourth switching means switched to the ear jack part as the ear jack detection signal received from the ear jack part is activated, and switched to the third switching means as the ear jack detection signal is deactivated. Wireless communication terminal having a multi-mode transmission and reception function comprising a. The method of claim 7, wherein As the wireless communication terminal operates in the traffic card mode, the first switching means is switched to the negative terminal of the traffic card chip under the control of the control means, and the second switching means controls the control means. Is switched to the (+) terminal of the traffic card chip, wherein the third switching means and the fourth switching means do not operate. The method of claim 7, wherein As the wireless communication terminal operates in a radio reception mode, the first switching means is switched to an open terminal under the control of the control means, and the second switching means is controlled by the control means. The third switching means is switched to the fourth switching means under the control of the control means, and the fourth switching means is switched to the ear jack portion as the ear jack sensing signal is activated, and the ear jack sensing is performed. The wireless communication terminal having a multi-mode transmission and reception function, characterized in that for switching to the third switching means as the signal is deactivated. delete The method according to any one of claims 7 to 9, As the wireless communication terminal operates in the multimedia content transmission mode, the first switching means is switched to an open terminal under the control of the control means, and the second switching means is switched to the third switching under the control of the control means. Means for switching to the means, wherein the third switching means switches to the multimedia content transmitting means under the control of the control means. In a wireless communication terminal having a multi-mode transmission and reception function, A multiband antenna for transmitting and receiving a signal corresponding to the mode of the wireless communication terminal; Control means for controlling the selection means according to the mode of the wireless communication terminal; Selecting means for transmitting a transmission / reception signal according to a mode of the wireless communication terminal to a path corresponding to each mode under the control of the control means; A traffic card chip for operating the wireless communication terminal in a traffic card mode according to a traffic card related signal transmitted and received through the multi-band antenna; Multimedia content transmission means for up-converting baseband multimedia content into an RF multimedia content signal and radiating it through the multiband antenna as the wireless communication terminal operates in a multimedia content transmission mode; And Input means for receiving a mode discrimination signal from a user according to a mode of the wireless communication terminal Wireless communication terminal having a multi-mode transmission and reception function comprising a. The method of claim 12, The selection means, First switching means switched to a (-) terminal or an open terminal of the traffic card chip according to the control of the control means; And Second switching means switched to the (+) terminal of the traffic card chip or the multimedia content transmission means according to the control of the control means; Wireless communication terminal having a multi-mode transmission and reception function comprising a. The method of claim 13, As the wireless communication terminal operates in the traffic card mode, the first switching means is switched to the negative terminal of the traffic card chip under the control of the control means, and the second switching means controls the control means. Wireless communication terminal having a multi-mode transmission and reception function, characterized in that switching to the (+) terminal side of the traffic card chip. The method according to claim 13 or 14, As the wireless communication terminal operates in a multimedia content transmission mode, the first switching means is switched toward the open terminal under the control of the control means, and the second switching means is connected to the multimedia content under the control of the control means. A wireless communication terminal having a multi-mode transmission and reception function, characterized in that switching to the transmission means.

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