KR20050099398A - Remote controll device for ear-micro phone with lcd panel - Google Patents

Abstract

The present invention relates to a remote control device for controlling a terminal having a music reproducing function and a control method thereof, wherein an interface connector is connected and installed to simultaneously perform data communication with the terminal in a UART manner and to function as an earphone jack for listening to music. And a pair of ear speakers electrically connected to each other by a cable extending to a predetermined length, an LCD module installed on the body to display information transmitted from the terminal, and one side of the LCD module. And a plurality of key buttons for remotely performing various functions used in the terminal and receiving data by operating the key buttons, and transmitting request data to the terminal controller, and receiving the received terminal data to the display device. It includes a control unit for displaying or performing a terminal function.

Description

Remote control device for ear microphone with LCD panel and its operation method {REMOTE CONTROLL DEVICE FOR EAR-MICRO PHONE WITH LCD PANEL}

The present invention relates to a remote control apparatus for a terminal including an MP3 function for listening to music and a method of operating the same, and in particular, to collectively process the status information, the phonebook function, and the MP3 function of the terminal to a remote control device electrically connected to the terminal. The present invention relates to a remote control device for an ear microphone having an LCD panel configured to be able to operate the same, and a method of operating the same.

In recent years, due to the development of various electronic and communication industries, portable wireless terminals have been widely used, and the functions of the terminals have been diversified in order to meet the needs of users, while gradually becoming smaller and thinner. . Accordingly, peripheral devices used in addition to or attached to the terminal are also developing. For example, an attachable camera device, a smart card as an auxiliary memory, and an ear which is installed on the terminal to allow communication Microphone devices and the like can be roughly classified.

In particular, the ear microphone device is a predetermined remote control device that allows a user to make a call by connecting an earphone jack to a jack hole installed in the terminal without removing the terminal from a body, for example, a pocket or a bag. A microphone device (commonly referred to as an 'earphone') is provided, and a predetermined microphone device (commonly referred to as a microphone) is provided as a transmitter.

On the other hand, recently, as part of responding to the needs of various users, an MP3 player or an on-demand audio device is embedded in the terminal. For this purpose, the ear microphone device or the remote control device includes an ear speaker having a stereo or surround function. Music can be played on a function terminal.

However, the function of remotely controlling the functions of various terminals by the remote control apparatus as described above has not been released, resulting in the inconvenience of simply playing music or performing only a terminal call mode.

SUMMARY OF THE INVENTION An object of the present invention is to provide a remote control apparatus for an ear microphone and an operating method thereof having an LCD panel capable of receiving and displaying a state of a terminal.

Another object of the present invention is to provide a remote control device for an ear microphone having an LCD panel configured to remotely use additional functions of various terminals such as a phone book search and a method of operating the same.

Another object of the present invention is to provide a remote control device for an ear microphone having an LCD panel capable of remotely controlling a terminal having a music playback function, and a method of operating the same.

It is still another object of the present invention to provide a remote control device for an ear microphone and an operating method thereof having an LCD panel capable of automatically and manually controlling a call of a terminal while simultaneously performing the above functions.

In order to solve the object as described above, the present invention is connected to one end of the interface connector to the ear jack jack for listening to music while at the same time performing data communication with the terminal in a UART method, the other end of the pair A speaker is electrically connected by a cable extending to a predetermined length, an LCD module installed on the body to display information transmitted from the terminal, and various types of LCD modules installed on one side of the body and used in the terminal. A plurality of key buttons for remotely performing a function and the data received by the operation of the key button to transmit the request data to the terminal control unit, to display the received terminal data on the display device, or to perform a terminal function It characterized in that it comprises a control unit.

In addition, the present invention can control various functions of the terminal by the above-described remote control apparatus.

Accordingly, the present invention provides a body having an interface connector for connecting to a terminal at one end and a pair of ear speakers at the other end, an LCD module installed on the body to display information transmitted from the terminal, and Installed on one side of the LCD module of the body and a plurality of key buttons for remotely performing various functions used in the terminal and receiving data by the operation of the key button to send and receive data to and from the terminal control unit, the display device of the body A method for displaying status information of a terminal with a remote control device for an ear microphone including a controlling unit, the method comprising: setting a serial communication environment with the terminal, and requesting a battery level and an antenna received signal strength request message to the terminal control unit; And transmitting from the terminal after the process. And receiving the response message, extracting the remaining battery level and the received signal strength of the terminal from the response message, and displaying the same on the display device.

In addition, the present invention is an interface connector for connecting to a terminal at one end and a pair of ear speakers are installed at the other end, an LCD module installed on the body, to display information transmitted from the terminal, and Installed on one side of the LCD module of the body, a plurality of key buttons for remotely performing various functions used in the terminal, such as mode, upper, lower, cancel, volume up / down, and input data by the operation of the key button A method for performing a phonebook search of a terminal with a remote control device for an ear microphone including a control unit for receiving and transmitting data to and from a terminal control unit and controlling a display device of a body, wherein a mode input button of the plurality of key buttons is input. The display and the display when the mode input button is input for a predetermined time or more. It characterized in that it comprises the step of performing a phone number search mode in the device.

Furthermore, the present invention provides a body having an interface connector for connecting to a terminal at one end and a pair of ear speakers at the other end, an LCD module installed on the body to display information transmitted from the terminal, and Installed on one side of the LCD module of the body, a number of key buttons to remotely perform various functions used in the terminal, such as mode, upper, lower, cancel, playback, hold, volume up / down, previous and next song selection In the method for performing the MP3 function of the terminal with a remote control device for an ear microphone comprising a control unit for receiving data by the operation of the key button to send and receive data with the terminal control unit, and control the display device of the body, Send the number to the terminal in sequence and receive the song name for the number and display it on the display device. The process of determining whether or not the play button is input, playing the corresponding song when it is input, determining whether the upper button is input when the play button is not input, and when the upper button is input, the cursor is displayed. Determining whether it is located on the upper line of the device, and if it is located on the upper line, moving the cursor down to display the previous number and song name, and determining whether the play button is input again after the process; It is characterized by.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case where it is determined that the gist of the present invention may be unnecessarily obscured, the detailed description thereof will be omitted.

1 is a perspective view of a remote control device 10 for an ear microphone having an LCD panel according to the present invention, wherein the remote control device 10 according to the present invention has a body 20 and an electrical portion at one side of the body 20. And a pair of ears connected to each other by an interface connector 11 having an audio jack 12 and a data terminal 13 integrally connected to the terminal, and the other side of the body 20. And a speaker 31. The microphone device 30 for the call of the terminal is installed at one of the cable speakers of the ear speaker 31.

The audio jack 13 of the interface connector 11 includes an audio terminal (left and right ear speaker), a ground terminal, a microphone terminal, and a power supply (VCC) terminal, and the data terminal 13 transmits and receives data. It includes the (Tx / Rx DATA) terminal. Therefore, the remote control device 10 according to the present invention can exchange data with the terminal in a UART communication method. The UART is a microchip containing a program that controls the interface to serial devices attached to a computer. Specifically, the UART provides the terminal with an RS-232C DTE interface, allowing it to communicate with or exchange data with a modem or other serial device. The above-described interface connector 11 is not limited to the illustrated shape, and may be implemented in general IF connectors having various pin counts.

Meanwhile, the display device 21 is installed in the body 20 of the remote control apparatus 10 according to the present invention. The display device 21 may be an LCD module, preferably a color wide LCD module. In addition, the body 21 has a function button for recording, playing, stopping, rewinding, fast-forwarding, fast-forwarding, and / or the like for controlling the music of the terminal, in addition to the display device 21, and changing the mode for operating the terminal. A plurality of buttons 22 are provided, such as buttons, and various mode functions such as a call function, a music play function, a terminal status display function, and a phone book search using the terminal can be performed by the remote control device by the mode change button. have.

FIG. 2 is a block diagram of a portable wireless terminal having an audio function according to the present invention. In the following description, the terminal is a cellular phone, a personal communication system (PCS), or a composite wireless terminal. PDA: Personal Data Assistant (IMP2000), IMT2000 (international mobile communication-2000) terminal, etc. are meant to include all, the following description will be described with a general configuration of the above examples.

Referring to FIG. 2, a controller (MPU: Micro-processor unit) 100 controls the overall operation of the terminal. For example, processing and control for voice call and data communication are carried out, and in addition to the usual functions, the music file is played using the remote control device according to the present invention, the state data of the terminal is transmitted, and the terminal has additional functions. To deal with. Therefore, in the following description, description about the process and control of the normal control part 100 is abbreviate | omitted.

The memory 101 includes a program memory, a data memory, a nonvolatile memory, and the like. The program memory stores a program for controlling the overall operation of the mobile communication terminal. The program memory may use a flash memory. The data memory temporarily stores data generated during the operation of the wireless telephone. The data memory may use random access memory (RAM). The nonvolatile memory stores telephone numbers and system parameters registered to perform functions such as speed dialing. The nonvolatile memory may use an EEPROM. According to the present invention, the flash memory may store a plurality of music files (eg, MP3 files).

The key pad 102 includes 0 to 9 numeric key buttons, a menu button, a cancel button (clear), an OK button, a call button (TALK), an end button (END), and an internet access button. And a plurality of function keys such as navigation key buttons (▲ / ▼ / ◀ / ▶), and provide key input data corresponding to a key pressed by the user to the controller 100. The display unit 103 displays status information generated during the operation of the mobile communication terminal, a limited number of characters, a large amount of moving images and still images, and the like. The display unit 103 may use a liquid crystal display (LCD).

A coder (Coder-Decoder) 104 connected to the control unit 100 and a microphone and a speaker connected to the codec 104 are voice input / output blocks used for phone calls and voice recording. The codec 104 converts the PCM data provided from the controller 100 into an analog voice signal and sends the same through the speaker, and converts the voice signal received through the microphone into PCM data to the controller 100. to provide.

 On the other hand, during a call using the remote control device, the call path is connected to the microphone and the receiver of the interface connector connected to the jack connection unit 107 rather than the speaker and the microphone (shown in FIG. 1). The jack connection unit 107 detects the connection of the interface connector of the remote control device and outputs it to the control unit 100.

In addition, the RF module 105 reduces the frequency of the radio frequency signal received through the antenna to the modem unit 106 and raises the baseband signal from the modem unit 106 to increase the frequency. Transmit via antenna The modem unit 106 processes a baseband signal transmitted and received between the RF module 105 and the control unit 100. For example, in case of transmission, channel coding and spreading of data to be transmitted are performed, and in case of reception, despreading and channel decoding of a received signal are performed. .

The music file reproducing unit 109 reads and decompresses a music file (for example, an MP3 file) from the memory 101 under the control of the control unit 100, and reproduces the audio file using an analog audio signal. Output to the ear microphone 108 through. The music file player 109 may be an MP3 player (MPEG-1 moving layer-3) player.

3 is a block diagram of a remote control apparatus according to the present invention, and is mainly configured inside the body.

The remote control apparatus 10 includes a controller 50 which requests data from the controller 100 of the terminal and displays the received data through the LCD apparatus 21. In addition, the controller 50 receives and processes input signals of a plurality of key buttons (up / down keys, function keys, mode keys, etc.) installed on the outer surface of the body 20. At the same time, the audio terminal of the terminal is electrically connected to a pair of ear speakers 31 connected to the body 20. Additionally, when an audio function is performed, the ear speaker 31 may be implemented to perform a surround function. In addition, the microphone unit and the mother terminal of the audio terminal are electrically connected.

Meanwhile, the body 20 includes a call signal sensing unit 23 for detecting a call signal of the terminal, and receives the signal from the call signal sensing unit 23 to control the ear speaker 31. And a speaker controller 24. Although not shown, the control signal of the speaker control unit 23 is applied on the ear speaker 31 to switch to the call mode of the terminal when the music is being played or when the music is not being played. It may further include a switching module for switching to the call mode.

4 is a flowchart for displaying status information of a terminal on a remote control apparatus according to an embodiment of the present invention, in which the controller of the remote control apparatus performs step 201 of checking whether the terminal is powered on. If the power is not "on", continue checking whether the power is "on". Then, when the power is "on", the controller of the remote control apparatus performs step 205 of transmitting a battery remaining amount and an antenna received signal strength request message to the controller of the terminal. Thereafter, when the response message is received (step 207), step 209 of extracting the battery level and the received signal strength of the terminal from the response message of the terminal is performed, and the battery level and antenna reception signal strength described above are displayed on the display device of the remote control apparatus. Perform step 211 of displaying. Thereafter, step 213 is performed for driving the timer until the timer expires for a predetermined time. If the timer expires, step 205 is performed again to continuously update the battery level of the terminal and the terminal signal strength.

FIG. 5 is a flowchart for searching for a phone book of a terminal by a remote control apparatus according to the present invention, and the controller of the remote control apparatus performs step 303 for checking whether a mode button is input in a standby state (step 301). If it is detected that the mode button is input, a time check (step 305) while the mode button is input is performed. If the mode button is pressed for a predetermined time or more, step 309 is displayed on the display device. Perform. If the mode button is not pressed for a predetermined time or more, step 333 of continuously executing the MP3 mode is performed. In step 309, the phone number search mode is displayed, and in step 311, the phone number is selected and transmitted to the terminal. The number transmitted from the remote device to the terminal may be a list number (usually a street address) of a phone number stored in the terminal. Thereafter, step 313 is performed to check whether a telephone number corresponding to the number transmitted to the terminal is received. When the telephone number is received, the mode button is input to transmit the selected number to the terminal (step 325) and the call mode is performed (step 327). If the mode button is not input, step 319 is performed to check the input of the upper button. If the upper button is input, step 329 is performed to decrease the selection number. Step 311 is performed. If the upper button is not input in step 319, the method checks whether the lower button is input again. When the lower button is input, step 331 of increasing the selection number is performed, and then step 311 of transmitting the increased selection number to the terminal is performed. Steps 329 for decreasing the selection number according to step 319 and step 331 for increasing the selection number according to step 321 may be changed according to button operations and settings. Thereafter, when the lower button is not input in step 321, step 323 is performed to check whether the cancel button is finally input. If the cancel button is not input, the method checks whether the mode button of step 317 is input again, and when the cancel button is input, resets to the initial standby state.

6 is a flowchart for performing a call mode of a terminal by the remote control apparatus according to the present invention. In the terminal call mode mode (during a call) by the operation of the remote control apparatus, all functions except volume up / down are performed. Perform step 401 to block. Thereafter, step 403 is performed to check whether the call button is operated. If the call button is operated, the call is terminated after performing the termination of the blocking function 413 of all the functions blocked in step 401 (415), and returns to the standby state of step 301 of FIG. 5. However, when the call button is not operated, the call is continuously in a busy state. Therefore, steps 405 and 407 are performed to check whether the volume up button or the volume down button is operated. Here, when the volume up button is operated, step 411 of transmitting volume up information to the terminal is performed. When the volume down button is operated, step 409 of transmitting volume down information to the terminal is performed. Thereafter, the call button detection step of step 403 is returned because the call is still in progress.

7A and 7B are flowcharts for performing the MP3 function of the terminal by the remote control apparatus according to the present invention. The display device installed in the remote control apparatus according to the present invention will be described as a two-line character display apparatus. However, the present invention is not limited thereto and may be displayed in a plurality of lines according to the size of the display device.

As shown in Fig. 7A, the cursor first selects the first song. That is, in the MP3 mode, step 501 is performed to transmit the number “1” to the terminal. After that, when the first song name is received in step 503, the first track name is displayed on the display device (step 505). Then, the number "2" is transmitted to the terminal (step 507). In case of receipt, step 511 is displayed in which step 509 is displayed. Up to this step, the song names received from the terminal are sequentially displayed on the display device of the terminal in two lines. Thereafter, step 513 is performed to position the cursor in the upper song. Thereafter, in steps 515 and 517, the controller performs a process of checking whether a play button is input. If the play button is input, the process of FIG. 7B is performed.

If the play button is not input in step 519, step 521 is performed to check whether an upper button is input. If the upper button is input, check the position of the cursor (step 523), and if the cursor is located on the upper line (525), perform step 527 to move the cursor down to display the previous number and song name, and then 515 Return to step If the cursor is not located on the upper line, step 529 is performed to move the cursor upward, and the process returns to step 515 again.

When the upper button is not input in step 521, step 531 is performed to check whether the lower button is input. If the lower button is entered, check the cursor position (step 533), and if the cursor is located on the lower line (step 535), move the cursor up to perform step 537 to display the next number and song name, and then step 515 again. Return to. If the cursor is not located on the lower line, the process returns to step 515 after performing step 539 to move the cursor down.

When the lower button is not input in step 531, step 541 of checking whether a hold button is input is performed. At this time, when the hold button is input, the hold state is displayed on the display apparatus (step 543) and the process returns to step 515. In addition, since the hold button is not input, the process returns to step 515 because the upper button is entered in step 521 and the lower button is not input in step 531.

That is, as described above, the numbers and song names stored in the terminal may be sequentially displayed as the cursor moves up and down of the two-line display apparatus.

On the other hand, when the play button is input in step 519, as shown in Figure 7b, the control unit of the remote control device performs step 545 to send a play request to the terminal. Thereafter, step 547 is performed in which the music reproduction state is displayed on the display device. At this time, the user is in a state capable of listening to music through the ear speaker device electrically connected to the remote control device according to the present invention. Thereafter, a process of checking whether button input is performed in steps 549 and 551 is performed. If the button input has not been performed, the processing returns to the button input check request message processing state in which music can be continuously played.

If the button input is detected in step 551, step 553 is performed to check whether the pause button is input. If the pause button is input, the controller of the remote control apparatus performs step 565 of transmitting a pause request to the terminal, and performs step 567 of displaying the status on the display device. Thereafter, step 569 is performed to check whether the play button is input. When the play button is input, step 545 is returned.

If the input of the pause button is not performed in step 553, step 555 is performed to check whether the input of the previous song selection button is performed. Thereafter, step 557 is performed to check the time when the previous song selection button is input, and step 559 is determined to be equal to or greater than the preset time. If the previous song selection button is input for more than the preset time, step 583 is performed to move to the beginning of the currently playing song, and the operation returns to step 547. If the previous song selection button is not input for more than the preset time in step 559, the process returns to step 547, in which step 561 of transmitting a previous song play request, which is an original function, to the terminal.

If the input of the previous song selection button is not performed in step 555, step 571 is performed to check whether the next song selection button is input. When the next song selection button is input, the controller performs step 573 of transmitting a next song playback request to the terminal and returns to step 547. If the next song selection button is not input in step 571, step 575 of checking whether the volume up / down button is input is performed. If the volume up / down button is input, the control unit returns to step 547 after performing step 577 of transmitting a volume up / down request to the terminal.

Apparently, there are many ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

The remote control apparatus according to the present invention has a convenient effect of remotely controlling functions such as a phone book, terminal status information, and a call performed at the terminal while listening to music while being connected to a music reproduction terminal.

1 is a perspective view of a remote control device for an ear microphone having an LCD panel according to the present invention;

2 is a block diagram of a portable wireless terminal having an audio function according to the present invention;

3 is a block diagram of a remote control apparatus according to the present invention;

4 is a flowchart for displaying status information of a terminal on a remote control apparatus according to the present invention;

5 is a flowchart for conducting a phonebook search of a terminal by a remote control apparatus according to the present invention;

6 is a flowchart for performing a call mode of a terminal by a remote control apparatus according to the present invention; And

7A and 7B are flowcharts for performing an MP3 function of a terminal by a remote control apparatus according to the present invention.

Claims (19)

An interface connector is connected to one end to perform data communication with a terminal in a UART manner and at the same time to function as an earphone jack for listening to music, and a body to which the pair of ear speakers are electrically connected to each other by a cable extending to a predetermined length; An LCD module installed on the body to display information transmitted from the terminal; A plurality of key buttons installed at one side of the LCD module of the body to remotely perform various functions used in a terminal; And And receiving a data by operating the key button and transmitting the request data to the terminal controller, and displaying the received terminal data on the display device or performing a terminal function. Remote control unit for the microphone. The method of claim 1, Call signal sensing unit for detecting a call signal of the terminal, And a speaker controller for controlling the ear speaker with a control signal output from the call signal sensing unit. A body having an interface connector for connecting to the terminal at one end and a pair of ear speakers at the other end, an LCD module installed on the body to display information transmitted from the terminal, and one side of the LCD module It includes a plurality of key buttons for remotely performing various functions used in the terminal and a control unit for receiving data by the operation of the key button to transmit and receive data with the terminal control unit, and controls the display device of the body In the method for displaying the status information of the terminal with a remote control device for an ear microphone, Setting a serial communication environment with a terminal; Transmitting a battery remaining amount and an antenna received signal strength request message to the terminal controller; And receiving a response message from the terminal after the above process, extracting the battery level and the received signal strength of the terminal from the response message, and displaying the same on a display device. How to operate The method of claim 3, wherein After displaying the terminal information on the display device, Driving a predetermined timer; And if the timer expires after the process, feeding back a terminal information request message to the terminal. The operating method of the remote control device for an ear microphone having an LCD panel further comprising the step of feeding back a terminal information request message. A body having an interface connector for connecting to the terminal at one end and a pair of ear speakers at the other end, an LCD module installed on the body to display information transmitted from the terminal, and one side of the LCD module It is installed in the terminal, a plurality of key buttons for remotely performing various functions used in the terminal, such as mode, upper, lower, cancel, volume up / down and the terminal control unit and the data received by the operation of the key button In the method for performing a phone book search of the terminal with a remote control device for an ear microphone including a control unit for transmitting and receiving, and controlling the display device of the body, Determining whether a mode input button is input among the plurality of key buttons; And And when the mode input button is input for a predetermined time or more, performing a phone number search mode on the display device. The method of claim 5, And operating the MP3 mode when the mode input button has not been input for a predetermined time. The method of claim 5, After running the phone number search mode, Displaying on the display device and transmitting the number to the terminal; Receiving a telephone number corresponding to the corresponding number from a terminal and displaying the same on a display device; Determining whether a mode button is input after the process, and transmitting a selection number to the terminal to perform a call mode when the mode button is input; Determining whether an upper button is input when the mode input button is not input; And The method of operating a remote control device for an ear microphone having an LCD panel, characterized in that it further comprises the step of transmitting the number to the terminal by reducing the selection number when the upper button is input. The method of claim 7, wherein Determining whether a lower button is input when the upper button is not input; A method of operating a remote control device for an ear microphone having an LCD panel, comprising: transmitting a number to a terminal by increasing a selected number when a lower button is input. The method of claim 8, Determining whether a cancel button is input when a lower button is not input; A method of operating a remote control device for an ear microphone having an LCD panel, comprising: determining whether a mode button is input when a cancel button is not input. The method of claim 7, wherein The call mode execution process, Blocking all functions except the volume up / down function of the remote control device; Determining whether a call button is input; The method of operating a remote control device for an ear microphone having an LCD panel, comprising the step of canceling the blocked function and ending a call when a call button is input. The method of claim 10, When the call button is not input, sequentially determining whether a volume up button or a volume down button is input; When the corresponding button is input according to the above process, transmitting information on the corresponding function to the terminal; And And a process of feeding back a process of determining whether a call button is input after the process. A body having an interface connector for connecting to the terminal at one end and a pair of ear speakers at the other end, an LCD module installed on the body to display information transmitted from the terminal, and one side of the LCD module It is installed on, and a plurality of key buttons and the key button for remotely performing various functions used in the terminal, such as mode, upper, lower, cancel, playback, hold, volume up / down, selection of the previous song and the next song In the method for performing the MP3 function of the terminal with a remote control device for an ear microphone including a control unit for receiving data by the operation to send and receive data with the terminal control unit, and controls the display device of the body, Sequentially transmitting a number to a terminal, receiving a song name for the corresponding number, and displaying the number on the display device; Determining whether a play button is input and playing the corresponding song when the play button is input; Determining whether an upper button is input when the play button is not input; Determining whether the cursor is located on the upper line of the display apparatus when the upper button is input, and when the upper button is positioned on the upper line, moving the cursor downward to display the previous number and song name; And The method of operating the remote control device for an ear microphone having an LCD panel, characterized in that the process of the feed pack to the process of determining whether the play button is input again after the process. The method of claim 12, Determining whether a lower button is input when the upper button is not input; Determining whether the cursor is located on the lower line of the display device when the lower button is input, and moving the cursor up to display the next number and song name when the lower button is positioned on the lower line; And The method of operating the remote control device for an ear microphone having an LCD panel, characterized in that the process of the feed pack to the process of determining whether the play button is input again after the process. The method of claim 13, Determining whether a hold button is input when the lower button is not input; Displaying a hold state when a hold button is input; And The method of operating the remote control device for an ear microphone having an LCD panel, characterized in that the process of the feed pack to the process of determining whether the play button is input again after the process. The method of claim 12, When the play button is input, Transmitting a play request to a terminal; Displaying the MP3 playback status and simultaneously outputting music to the speaker; And And a method of determining whether a button input is made after the above process. The method of claim 15, When the above button is input, Determining whether a pause button is input; When the pause button is input, transmitting a temporary request message to the terminal; Displaying a pause state on a display device; And A method of operating a remote control device for an ear microphone having an LCD panel, comprising: determining whether a play button is input and displaying a play state and playing music when the play button is input. The method of claim 16, Determining whether a previous song selection button is input when the pause button is not input; Determining whether a button is input for a preset time when a previous song selection button is input; A method of operating a remote control device for an ear microphone having an LCD panel, comprising: moving to the beginning of a currently playing song when a button is input for a set time, displaying a playback state, and playing music. The method of claim 17, When the previous song selection button is not input, determining whether the next song selection button is input; Transmitting a next song play request to a terminal when a next song selection button is input; And And a step of displaying a play state and playing music after the above process. The method of claim 18, Determining whether a volume up / down button is input when the next song selection button is not input; When the volume up / down button is input, transmitting a volume up / down request to the terminal; And And a step of displaying a play state and playing music after the above process.