KR20010018186A - Digital audio data playback status displaying device of mobile phone and thereof control method - Google Patents

Abstract

PURPOSE: An apparatus for displaying digital audio data regeneration status for portable phones and a method for controlling thereof are provided to makeize MP3 player associated functions iconic and to display them in a display unit so that users can use MP3 player functions more conveniently. CONSTITUTION: A portable phone module checks whether a main menu selection key is inputted from a keypad(201). If it is judged that the main menu selection key has been inputted, the portable phone module displays the main menu in a main menu display unit(202). If a user pushes an MP3 player function key(key No. 0), the portable phone module checks that key No. 0 has been inputted(203) and displays an MP3 player menu icon in the display unit(204). The portable phone module checks whether one of the MP3 player function selection keys is inputted(205). If it is judged whether an MP3 player function selection key has been inputted, the portable phone module carries out an operation corresponding to the selected MP3 player function selection key(206).

Description

Display device of digital audio data playback status of mobile phone and its control method {DIGITAL AUDIO DATA PLAYBACK STATUS DISPLAYING DEVICE OF MOBILE PHONE AND THEREOF CONTROL METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and in particular, a digital audio data playback state display device of a mobile phone that can be displayed on a display of a mobile phone so that a user can more easily check related functions when playing digital audio data using a mobile phone, and control thereof. It is about a method.

Recently, a multimedia communication network has been established to collect a variety of information through the Internet network, a technology for connecting the Internet network using a mobile phone has been developed, and a complex mobile phone with various functions added to use information using a mobile phone. Development is required. However, in order to listen to the desired music, a portable cassette tape recorder or an MP3 player needs to be carried. Therefore, the development of a mobile phone incorporating MP3 player functions has been required.

Disclosure of Invention An object of the present invention is to display a digital audio data playback state display device and a control method of the mobile phone, which can display a display unit by iconizing a function related to the MP3 player so that a user can easily use the MP3 player function embedded in the mobile phone. To provide.

In order to achieve the above object, the present invention provides a digital audio data playback state display device of a mobile phone, comprising: a main menu selection key for displaying a main menu on a display unit of the mobile phone, and an MP3 playing menu icon on the display unit; An MP3 playing function selection key, a play / stop key for displaying a play mode icon on the display unit, a play mode icon display select key for selecting a play mode icon to display on the display unit, various function keys for a call, A keypad having numeric keys; A mobile phone module that controls the general operation of the mobile phone, and controls to display a function corresponding to a key input from the keypad on a display unit of the mobile phone, and receives or records MP3 digital audio data through the mobile phone module. And an MP3 module for reproducing audio data as digital audio data in MP3 format.

1 is a block diagram of a mobile phone having a digital audio data reproduction state display device according to an embodiment of the present invention.

2 is a control flowchart showing a playback state of MP3 file data in a mobile phone according to an embodiment of the present invention;

3 is a diagram illustrating a menu function setting method of an MP3 player of a mobile phone according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used for the same components, even if displayed on different drawings. In describing the present invention, it should be noted that specific descriptions of well-known functions or configurations are omitted in order not to disturb the gist of the present invention.

1 is a block diagram of a mobile phone having a digital audio data reproduction state display device according to an embodiment of the present invention.

Referring to the drawings, the configuration of a digital audio data reproduction state display device of a mobile phone according to an embodiment of the present invention will be described in detail.

First, the mobile phone module 102 shown in Figure 1 controls the general operation of the mobile phone, by inputting the corresponding selection key, such as the main menu selection key, MP3 playing function selection key from the keypad 104, digital audio data (MP3) Controls to display at a glance the icons associated with the playback, and to play the digital audio data when the play / stop key is selected from the keypad 104 and the desired MP3 file is selected. The keypad 104 includes various function keys and numeric keys for a call, and includes a rewind (REW) key, a play / stop key, a fast forward (FF) key, a play mode setting key, a file view key, a left and right volume control keys, and the like. It is provided. The display unit 106 is controlled by the mobile phone module 102 and receives and displays key input signals generated from the keypad 104 and various information signals from the mobile phone module 102. At this time, the display unit 106 is composed of a liquid crystal display (LCD) for displaying a variety of information, and a light emitting diode to enable the user to check the display information at night. The RS232C connection unit 108 exchanges digital audio data (MP3 file) and other data with the personal computer through an RS232C cable under predetermined control. The earphone 110 is connected to the mobile phone module 102 and outputs audio data reproduced by the mobile phone module 102.

The MP3 decoder 114 restores the audio data compressed in the MP3 format to the PCM format, for example, ST013 by ST MICRO ELECTRONICS Co., Ltd., which is a control data and audio in the encoded audio stream of 8 to 320 Kbps. Demultiplexing and separating the data, audio data is decoded by run-length coding to decode the original length signal by performing Hoffman method decoding, and control data for dequantization and rescaling for each subband. Under the control of. The resulting data is recovered by an Inverse Discrete Cosine Transform (IDCT) and transformed into PCM data by performing inverse filtering for each subband. The D / A converter 112 may be composed of, for example, CS4331, which is a digital / analog converter for stereo audio from Crystal, and converts PCM type audio data output from the MP3 decoder 114 into analog audio data. The D / A converter 112 includes digital interpolation, delta-sigma D / A conversion digital deemphasis, and filtering circuits. The CPU 116 can be implemented using, for example, H8 / 2134 manufactured by HITACHI, and controls to receive and record MP3 data or to play back recorded MP3 audio data. The memory 118 stores digital audio data converted into the MP3 format under the control of the CPU 116.

2 is a control flowchart of displaying a playback state of MP3 file data in a mobile phone according to an embodiment of the present invention. 3 is a diagram illustrating a menu function setting method of an MP3 player of a mobile phone according to an exemplary embodiment of the present invention.

2 and 3 will be described in detail a process of displaying a function related to an MP3 player and displaying it on a display unit by controlling a digital audio data playback state display device of a mobile phone according to an embodiment of the present invention.

Referring to FIG. 2, in step 201, the mobile phone module 102 determines whether a main menu selection key is input from the keypad 104, and if it is determined that the main menu selection key is input, the mobile terminal module 102 proceeds to step 202. In step 202, the mobile phone module 102 is displayed on the main menu display unit 106 as shown in Table 1 below.

0. MP3 Player 1. Voice Dial 2. Bell / Vibration Size 3. Time Management 4. Reservation / Alarm 5. Personal Information 6. Additional Service

It should be noted that Table 1 corresponds to the state (301) of FIG. At this time, the user checks the main menu and then presses the MP3 player function selection key (0 key) to select the MP3 player. In step 203, the mobile phone module 102 checks whether the MP3 player function key 0 is input. If key 0 is inputted, the process proceeds to step 204. In step 204, the mobile phone module 102 displays the MP3 playing menu icon on the display unit 106 as shown in 302 of FIG. For reference, each icon displayed in 302 of FIG. 3 is configured to have a function as shown in Table 2 below.

1. Rewind icon 2. Play / Stop icon 3. Fast forward icon 4. Play mode setting icon 5. File view icon 6. Left and right volume control icon

In step 205, the mobile phone module 102 checks whether the MP3 playing function selection key (six selection keys consisting of the first to sixth keys) is input. If it is determined in step 205 that the MP3 play menu function selection key is input, the mobile phone module 102 proceeds to step 206 to perform an MP3 play function operation corresponding to the selected MP3 play menu function selection key. For example, when the first key is input, the rewind operation is performed, when the second key is input, the play or stop operation is performed, and when the third key is input, the fast forward operation is performed. In addition, if key 4 is inputted, playback mode is set. If key 5 is pressed, file view is operated. If key 6 is pressed, left and right volume control is performed.

In this case, if it is assumed that the play / stop key (for example, the second key) is input from the keypad 104 in step 207, the mobile phone module 102 proceeds to step 208 to display a play mode icon. That is, the playback mode icon corresponding to the state 304 of FIG. 3 is displayed. The playback mode icon includes an icon indicating an equalizer level, an icon indicating a playback state as a note moves, an icon indicating a number of data to be currently played, and a time to display a playback time of the currently played digital audio data. Note that it consists of information.

The mobile phone module 102 checks whether a play mode icon display selection key is input from the keypad 104 in step 209. If the mobile phone module 102 determines that the play mode icon display selection key is input in step 209, the mobile phone module 102 displays only the selected play mode icon on the display unit 106. For example, when the user selects the equalizer level icon in the state 304 of FIG. 3, only the equalizer level icon is displayed on the display unit as shown in the state 305 of FIG. 3, and the user displays the playback state in the state 304 of FIG. 3. If the note icon to be displayed is selected, only the note icon is displayed on the display unit as shown in the state (306) of FIG.

Then, in step 211, the mobile phone module 102 checks whether an end key is input from the keypad 104, and when the end key is input, the mobile phone module 102 ends the aforementioned MP3 playing function operation.

For reference, it should be noted that each key shown in the state 303 of FIG. 3 represents a key provided in the keypad 104 of the mobile phone module 102. Referring to FIG. The operation according to the input of the function selection key will be described in detail.

First, the mobile phone module 102 controls the driving of the MP3 player to move to the previous song when the rewind key (for example, the first key) is shortly pressed and to move to the first song when the cell phone module is pressed. If the rewind key is pressed briefly during playback, the playback starts again from the beginning of the song being played, if the rewind key is pressed at the beginning of the song, playback starts from the beginning of the previous song, and if the rewind key is pressed during playback, the rewind key is pressed. After rewinding for as long as you press, release the button to play the MP3 file data from the point where the button was not pressed.

In addition, when the mobile phone module 102 determines that the play / stop key (for example, the 2nd key) is input while not playing, the mobile phone module 102 displays the name of the song to be played for a while and starts playing it. Stops playing the ground and returns to the previous menu screen.

In addition, the mobile phone module 102 controls to move to the next song when the fast-forward key (for example, the third key) is briefly pressed while not playing, and to move to the last song when the key is pressed long. If the fast-forward key is pressed briefly during playback, playback starts from the beginning of the next song. If the fast-forward key is pressed for a long time during playback, the unit rewinds as fast as the pressed time and starts playback from the point where the button is released.

In addition, the mobile phone module 102 checks whether a play mode setting key (for example, key 4) is input from the keypad 104, and when the play mode setting key is input, the display unit 106 can set the play mode as shown in Table 3 below. Mark on.

REPEAT Play the current song repeatedly until you press the Stop button. REPEAT ALL The specified song is played in order and repeated until the stop button is pressed. SHUFFLE Rather than playing songs in order, they play in random order and repeat until you press the Stop button. REPEAT SHUFFLE Plays in random order and repeats until you press the stop button. NORMAL Standard play mode

Here, when the play mode setting key (for example, the 4 key) is pressed, REPEAT is displayed on the screen, and when the next key is pressed, REPEAT ALL is displayed on the next screen, and pressing the select key sets the REPEAT function. In addition, the REPEAT ALL, SHUFFLE, REPEAT SHUFFLE, and NORMAL functions can be set in the same way.

In addition, the mobile phone module 102 checks whether a file view key (for example, the 5th key) is input from the keypad 104 and displays file information in units of predetermined time when the file view key is input. In other words, if the file view key is pressed during playback, the file information of the current song is displayed for a while, and if the file view key is pressed without the playback, the file information of the currently stopped song is displayed for a while.

In addition, the mobile phone module 102 checks whether the play mode left and right sound control keys (for example, the sixth key) are input from the keypad 104, and displays the currently set left and right volume levels when the left and right volume control keys are input, followed by the left and right sides of the speaker. If the volume feels different, use this menu to adjust the left and right volume to your liking. The volume control can be adjusted by pressing the up or down key or the next or selection button from the keypad 104.

In addition, the present invention includes a call answer selection function, a playback status display function, a file list display function, an all erase function, a memory information function, a download information display function, and the like among MP3 consecutive period menu items. The answer call selection function allows you to choose whether or not to answer the incoming call while playing the MP3 file data. If you set it not to receive a call, it does not ring even if a call is made during playback. Only applies so you can answer a call anytime you are not playing. The playback status display function displays not only the height of the sound, but also the playing time and song order on the screen during MP3 playback. If the playback status display function is set, the battery consumption increases during playback. The file list display function displays a list of the specified songs, and when the desired song is displayed, pressing the select button displays the capacity of the corresponding song, displays the capacity of the corresponding song, and deletes the corresponding song. The Erase All function erases all MP3 files stored in the phone memory. The memory information display function displays the available memory capacity and the remaining memory capacity. The download information display function displays the song title and the downloaded date and time from the downloaded MP3 file.

As described above, the present invention has an effect of allowing the user to more easily grasp the operation state of the MP3 player by iconizing the MP3 player related functions and displaying them on the display unit when playing the MP3 digital audio data embedded in the mobile phone.

Claims (8)

In the digital audio data reproduction status display device of the mobile phone, A main menu selection key for displaying on the display unit of the mobile phone, an MP3 playing function selection key for displaying an MP3 performance menu icon on the display unit, a play / stop key for displaying a playback mode icon on the display unit, A keypad including a play mode icon display selection key for selecting a play mode icon to display on the display unit, various function keys and numeric keys for calling; A mobile phone module which controls a general operation of the mobile phone and controls to display a function corresponding to a key input from the keypad on a display unit of the mobile phone; And an MP3 module configured to receive and record MP3 digital audio data through the mobile phone module or to reproduce the recorded digital audio data as digital audio data in an MP3 format. The MP3 player menu icon of claim 1, wherein the MP3 play menu icon includes a rewind icon for displaying a rewind operation, a play / stop icon for displaying a play or stop operation, a fast forward icon for displaying a fast forward operation, and a play mode setting operation. And a playback mode setting icon to be displayed, a file viewing icon for displaying a file viewing operation, and a left and right volume adjusting icon for displaying an operation for adjusting left and right volume control. 2. The playback mode icon of claim 1, wherein the playback mode icon comprises an icon indicating an equalizer level, an icon indicating a playback state as a note moves, an icon indicating a number of data currently being played, and digital audio data currently being played. Digital audio data playback status display device of the mobile phone, characterized in that consisting of time information to display the playback time of the. The method of claim 1. The MP3 module includes a CPU for receiving and recording MP3 data through the mobile phone module and converting audio data recorded in a memory into digital audio data in an MP3 format, and digitally converted to an MP3 format under control of the CPU. A memory storing audio data and audio data compressed in MP3 format under the control of the CPU are separated by demultiplexing control data and audio data from an encoded audio stream of 8 to 320 Kbps, and the audio data is Hoffman type decoding. Restores the compressed signal by run length coding to a signal of the original length, and performs inverse quantization and rescaling for each subband by control of the control data, and the resulting data is inverse discrete cosine transform. Is converted to PCM data by performing subband inverse filtering. And an MP3 decoder and a D / A converter for converting PCM type audio data output from the MP3 decoder into analog audio data. In the digital audio data playback state display control method of a mobile phone having an MP3 playing function selection key, Inspecting a key input input by a keypad in a standby state of the mobile phone, And if it is determined that the MP3 playing function selection key is input in the standby state of the mobile phone, displaying a MP3 playing menu icon on the display unit. In the method for controlling digital audio data playback status display of a cellular phone having a main menu selection key, an MP3 playing function selection key, a play / stop key, and a play mode icon display selection key, Displaying the corresponding main menu on the display unit of the mobile phone according to the input of the main menu selection key; And displaying an MP3 playing menu icon on the display unit in response to an input of an MP3 playing function selection key while the main menu is displayed. The method of claim 6, further comprising: displaying a play mode icon on the display unit according to a play / stop key input while the MP3 play menu icon is displayed; And displaying only the selected play mode icon according to the input of the play mode icon display selection key while the play mode icon is displayed on the display unit. The method of claim 7, wherein the displaying of the play mode icon comprises: displaying only an equalizer level icon on a display unit of the mobile phone when an equalizer level icon is selected according to an input of the play mode icon display selection key; And selecting only a note icon indicating a playback state according to a key input, wherein only a note icon is displayed on a display unit of the mobile phone.