KR20000042809A - Method for receiving and reproducing music files - Google Patents

Abstract

PURPOSE: A method for receiving and reproducing music files is provided, so that a user can be supplied with the music files required regardless of places, by receiving the music files transmitted from a portable wireless communication terminal to reproduce the transmitted music files. CONSTITUTION: A method for receiving and reproducing music files in a portable wireless communication terminal, comprises the steps of: connecting with a server of a music files provider, and requesting a music files transmission required; wirelessly receiving the music files transmitted from the server, and designating addresses for the received music files to store the music files; and reading the music files corresponding to the designated addresses to reproduce the music files, and outputting the music files.

Description

Portable wireless communication terminal capable of receiving and playing music files and method thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless communication terminal, and more particularly, to a wireless communication terminal capable of receiving and playing music files wirelessly and a method thereof.

BACKGROUND OF THE INVENTION A general portable wireless communication terminal is a communication device, which is designed to perform voice communication and data communication with a counterpart, and its spread is rapidly increasing due to convenience in use. Along with the spread of such portable wireless communication terminals, there is an MP3 player that has emerged as a new concept of a portable audio device. MP3 player is a new concept audio playback device that can download and play compressed MP3 music files from personal computer. Its advantage is that users don't need to have a separate recording media (tape, CD). Seems to be. However, since MP3 players can download music files only through wires, additional equipment such as personal computers, cables, etc. must be secured first, which results in extremely limited places where music files can be downloaded. Will result.

Accordingly, an object of the present invention is to provide a portable wireless communication terminal and a method for wirelessly receiving and playing music files.

The present invention for achieving the above object is a wireless transmission and reception unit for outputting by modulating / demodulating the radio signal to be received or transmitted through the antenna, and

A baseband processor which detects an analog signal of a low frequency band and converts it into a digital signal, converts the digital signal into an analog signal and outputs the analog signal to the wireless transceiver;

A control unit for addressing and storing the music file corresponding to the designated address when the digital signal input from the baseband processor is a compressed music file (MP3) and storing the music file when the music file is played;

A decoding unit which decodes and outputs a music file output from the controller so as to be processed as an audio signal;

And at least a codec for converting the decoded music file MP3 into an analog audio signal and outputting the converted audio file MP3.

In addition, the present invention is a method for receiving and playing music files in a portable wireless communication terminal,

A music file transmission request process for requesting transmission of a desired music file after connecting to a server of a music file service provider;

A music file storing process of wirelessly receiving a music file transmitted from the server and storing the received music file by specifying an address thereof;

And a music file reproduction process of reading, decoding, and outputting a music file corresponding to an address designated by a user.

1 is a block diagram of a portable wireless communication terminal according to an embodiment of the present invention.

2 is a flow chart illustrating a music file (MP3) reception control in a portable wireless communication terminal according to an embodiment of the present invention.

3 is a flowchart for reproducing music files stored in a portable wireless communication terminal according to an embodiment of the present invention.

Hereinafter, an operation according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a portable wireless communication terminal according to an embodiment of the present invention.

Referring to FIG. 1, the wireless transceiver 100 is connected between a base band processor 110 and an antenna and modulates / demodulates a radio signal received through the antenna or to be transmitted through the antenna. The baseband processor 110 detects an analog signal of a low frequency band among the received radio signals, converts the analog signal into a digital signal, converts the digital signal into an analog signal, and outputs the analog signal to the wireless transceiver 100. The controller 120 controls overall operations required for wireless communication and data communication in the terminal. For example, when the digital signal input from the baseband processor 110 is a voice signal, the controller 120 transmits the digital signal to the stereo codec 150 through a VOCODER (not shown). When the input digital signal is a music file MP3, the digital signal is addressed and stored in the memory 130. The control unit 120 corresponds to a mobile station MODEM (MOdulator and DEModulator) module when the terminal adopts the CDMA method, and the MSM module is an 8Kbps QCELP (Qualcomm Code Excited Linear Predictive coding) method as is known. It includes the vocoder of. The controller 120 controls an operation for receiving and playing the music file MP3 as shown in FIGS. 2 and 3 according to a control program stored in the internal memory. The controller 120 includes a ROM in which a terminal control program and initial data are stored, and a RAM temporarily storing various data according to an operation of the portable wireless communication terminal. The memory 130 uses the flash memory as a memory for storing the music file MP3 received from the server of the service provider through wireless communication. The memory 130 size may be determined in consideration of the music file capacity that can be stored.

The decoding unit 140 decodes and outputs the music file MP3 output from the controller 120 so that the stereo codec 150 can process the stereo filec 150. The stereo codec 150 decodes the music file MP3. The audio signal is converted into an analog audio signal and output to the speaker SPK or earphone, while the PCM voice data sample output from the vocoder in the controller 120 is converted into an analog audio signal and output to the speaker SPK. The key input unit 160 has various function keys for data communication, dialing, music selection, and the like, and the display unit 170 displays messages and lists according to various operation states of the terminal under the control of the control unit 120. As the display unit 170, a liquid crystal display is generally used.

FIG. 2 is a flowchart illustrating a music file (MP3) reception control flow diagram in a portable wireless communication terminal according to an embodiment of the present invention, and FIG. 3 is a diagram showing a music file stored in a portable wireless communication terminal according to an embodiment of the present invention. It shows a flow chart for.

Hereinafter, a method of receiving and playing a music file MP3 in a portable wireless communication terminal will be described in detail with reference to FIGS. 1 to 3.

First, the user of the portable wireless communication terminal attempts to connect with the server (step 200) in order to receive the music file from the server of the music file (MP3) service provider. The server connection method can be accomplished by dialing the telephone number of the designated service provider. If the connection with the server of the service provider is completed, the music file providing service is requested through the key input unit 160 according to the procedure provided by the service provider (step 210). The above server connection and service request are both made by radio signal transmission. In step 220, the controller 120 of the portable wireless communication terminal requesting the music file providing service receives the list transmitted from the service provider and displays the list on the display unit 160. The list may be classified into various types, such as a music genre, an artist name (in alphabetical order), an era name, etc., and it is assumed that the list refers to a list that is already specified by a user's request in the service request step 210 described above.

For example, when the user requests a music list of a specific gas, in step 220, a music list called by a specific singer is received and displayed, and the controller 120 checks whether there is a music selection in step 230. If a specific song is selected by the user, the controller 120 wirelessly transmits the song selection information to the service provider in step 240. In addition, the control unit 120 proceeds to step 250 and receives the music file MP3 transmitted from the server of the service provider side and stores it in the memory 130. Looking at the path through which the music file MP3 is received, the compressed music file MP3 transmitted from the service provider is input to the baseband processor 110 through the antenna and the wireless transceiver 100. Accordingly, the baseband processor 110 transmits only a signal of a low frequency band to the controller 120, and the controller 120 stores the music file MP3 in the memory 120.

On the other hand, the control unit 120 lists the music names of the music file MP3 received in step 260 (hereinafter referred to as the music name list) and proceeds to step 270. In step 270, the control unit 120 scans the key input unit 150 for a predetermined time and checks whether there is an end input. If there is no end input for a predetermined time, the music file reception control flow chart as described above is terminated, and if there is a song selection, the music file MP3 requested by the user is repeated from the service provider's server by repeating steps 230 to 270. Received and stored in the memory 130.

Hereinafter, a process of selecting and playing one of a plurality of stored music files MP3 will be described. First, the controller 120 checks whether there is a music playback input from the key input unit 150 in step 300. The music play input may be input by a designated key. If there is a key input for music reproduction, the controller 120 proceeds to step 310 and displays a list of song names listing music names of the stored music files MP3. If there is a song name selection by the user in step 320, the controller 120 proceeds to step 330 and reads the music file of the selected song name from the memory 130 and transmits it to the decoding unit 140. Accordingly, the decoding unit 140 decodes the compressed music file (step 340), and the decoded music file is converted into an analog signal by the stereo codec 150 and then output through the speaker SPK. On the other hand, if the music file of the selected song name is decoded in step 350, the control unit 120 proceeds to step 360 and checks whether there is an end input. If there is no end input, the control unit 120 returns to step 320 and checks whether another song name is selected. The music file reproduction operation as described above is repeated.

Therefore, the user can receive the desired music files through the processes as shown in FIG. 2, and can play and listen to the specific music files through the processes as shown in FIG. 3.

As described above, the present invention has the advantage that no additional equipment (PC, cable, etc.) is required to download the music file because the music file is transmitted and received from the portable wireless communication terminal. There is an advantage that the user can be freely provided with the desired music files without being particular about the place.

Claims (2)

In a portable wireless communication terminal that can receive and play music files, A wireless transceiver for modulating / demodulating and outputting a radio signal to be received through an antenna or to be transmitted through an antenna; A baseband processor which detects an analog signal of a low frequency band and converts it into a digital signal, converts the digital signal into an analog signal and outputs the analog signal to the wireless transceiver; A control unit for addressing and storing the music file corresponding to the designated address when the digital signal input from the baseband processor is a compressed music file (MP3) and storing the music file when the music file is played; A decoding unit which decodes and outputs a music file output from the controller so as to be processed as an audio signal; And at least a codec for converting the decoded music file MP3 into an analog audio signal and outputting the converted audio file. In the method of receiving and playing music files in a portable wireless communication terminal, A music file transmission request process for requesting transmission of a desired music file after connecting to a server of a music file service provider; A music file storing process of wirelessly receiving a music file transmitted from the server and storing the received music file by specifying an address thereof; And a music file playing process of reading and decoding and outputting a music file corresponding to an address designated by a user.