KR20030071041A - Apparatus for transmitting and playing of mp3 data use of bluetooth - Google Patents

Abstract

PURPOSE: An apparatus for transmitting and reproducing MP3(MPEG(Moving Picture Experts Group) layer 3) data, using Bluetooth, is provided to transmit and receive the MP3 data stored in a memory of an MP3 reproducing device between MP3 reproducing devices by composing a Bluetooth transmitting and receiving module in the MP3 reproducing device. CONSTITUTION: A power supply unit(101) supplies a power to each unit of an MP3 reproducing device according to the request of a user. A key input unit(111) inputs a control signal for transmitting and receiving MP3 data or reproducing the MP3 data. A Bluetooth transmitting and receiving module(103) has a baseband processing unit(103b) for converting a received data packet into an HCI(Human Computer Interaction) packet and converting certain MP3 data into a wireless data signal. The Bluetooth transmitting and receiving module(103) has an RF(Radio Frequency) transmitting unit(103c) for transmitting the wireless data signal received from the baseband processing unit(103b), and an RF receiving unit(103a) for receiving a wireless data signal. A memory(107) stores the MP3 data received from the Bluetooth transmitting and receiving module(103) and certain control data. An audio signal processing unit(105) processes an audio signal, for reproducing the MP3 data stored in the memory(107). A display unit(109) displays data information associated with the produced MP3 data and the state of the MP3 reproducing device.

Description

A device for transmitting / playing MP3 data using Bluetooth {APPARATUS FOR TRANSMITTING AND PLAYING OF MP3 DATA USE OF BLUETOOTH}

The present invention relates to an apparatus for transmitting / reproducing MP3 data using Bluetooth. More particularly, the present invention relates to an apparatus for transmitting / reproducing MP3 data using Bluetooth for wirelessly transmitting and receiving MP3 data to and from an MP3 output apparatus having a Bluetooth module. It relates to a device to.

Recently, the Bluetooth protocol has been proposed by Ericsson as a short-range wireless communication concept that replaces wired communication or infrared communication in the near field. The Bluetooth may transmit and receive data at high speed by using a radio frequency without a physical cable for communication between various electronic devices.

In this Bluetooth standard, Bluetooth 1.0 has a data rate of 1Mbps and a transmission distance of 10 ~ 100m. Therefore, compared to the Infrared Data Association (IrDA) that uses infrared rays, the communication distance is longer, and because the high radio frequency of 2.4 GHz is used, communication is possible even when there is an obstacle. In addition, Bluetooth consumes less than 100mW at 2.7V. IrDA is a clear advantage in mobile devices that need to save power due to the limited 150mW battery capacity.

In addition, the Bluetooth is a proximity wireless data communication standard proposed for transmitting and receiving data at high speed by using radio frequency (RF) without a physical cable in various electromagnetic periods. It has the advantage that it is possible to transmit not only text data but also voice in all directions without limitation of space.

On the other hand, more and more people are listening to music using a computer. Most of music files transmitted and received using a computer have an MP3 extension, and MP3 player devices for exclusively reproducing the MP3 data are also developed and commercially available.

However, the conventional MP3 playback apparatus as described above has a problem that the MP3 data can only be downloaded through a computer, and only the MP3 data can be downloaded from a place where the computer is located.

In order to effectively solve the above problems of the prior art, by providing a Bluetooth transceiver module in the MP3 playback device, MP3 data using Bluetooth for transmitting and receiving MP3 data stored in the memory of the MP3 playback device between the MP3 playback device The purpose is to provide a device for transmitting / playing the.

1 is a schematic diagram illustrating a system for transmitting MP3 data using Bluetooth according to a preferred embodiment of the present invention.

<Description of reference numerals appearing in the drawing>

100: MP3 playback device 101: power supply

103: Bluetooth transceiver module 105: Audio signal processor

107: memory 109: display unit

111: key input unit 113: control unit

200: computer

Apparatus for transmitting / reproducing MP3 data using Bluetooth of the present invention for achieving the above technical problem is a power supply for supplying appropriate power to each part of the MP3 playback device at the user's request;

A key input unit for inputting a control signal for transmitting or receiving MP3 data by the user;

A baseband processor for converting the received data packet into an HCI packet and converting the received data packet into a wireless data signal for transmitting predetermined MP3 data and a wireless data signal transmitted from the baseband processor Bluetooth transceiver module comprising an RF transmitter for transmitting the RF receiver and an RF receiver for receiving a wireless data signal;

MP3 data received from the Bluetooth transmission and reception module, a memory in which predetermined control data is stored;

An audio signal processor configured to process an audio signal in order to reproduce MP3 data stored in the memory;

A display unit which displays data information related to the MP3 data to be reproduced and the state of the MP3 player;

And a control unit for controlling each unit of the MP3 player.

Hereinafter, a method and apparatus for transmitting MP3 data using Bluetooth according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

1 is a schematic diagram showing a system for transmitting MP3 data using Bluetooth according to a preferred embodiment of the present invention.

As shown in FIG. 1, a computer 200 that searches for and downloads MP3 data and an MP3 player 100 receives and plays MP3 data from the computer 200.

The MP3 player 100 receives the Bluetooth transmission / reception module 103 for transmitting / receiving wireless data with the power supply unit 101 for converting power supplied from the outside into appropriate power and the MP3 received through the Bluetooth transmission / reception module 103. Controlling an audio signal processor 105 for processing data, a memory 107 for storing predetermined data, a display unit 109 for displaying a control operation state, a key input unit 111 for key input, and each unit, The control unit 113 performs a control operation requested by the user.

The computer 200 includes a key input unit 201 that receives a control message for downloading predetermined MP3 data from a user, a central processing unit 203 for executing a predetermined control command requested by the user, and wirelessly stores the MP3 data. Bluetooth transmission and reception module 205 for transmitting and receiving, and the memory 207 is stored MP3 data and predetermined control data.

In this case, the central processing unit 203 controls operations performed by each computer system to perform a control message input from a user, and is performed with an arithmetic / logic unit 203a in which arithmetic and logical operations of data are performed. Control unit 203b for generating a signal for the operation.

When the central processing unit 203 receives predetermined data and command messages from the key input unit 201, the central processing unit 203 drives the control unit 203b to control each unit, and performs arithmetic and logic operations in the arithmetic / logic unit 202a. Make it. In this case, the central processing unit 203 generates a timing and control signal to fetch an instruction from the memory 207, decodes binary information using an instruction decoding circuit, and executes it according to the decrypted instruction. .

The memory 207 stores data input through the key input unit 201 and MP3 data requested by the user, and provides predetermined data requested by the central processing unit 203.

The Bluetooth transmit / receive module 205 includes an RF receiver 205a, a baseband processor 205b, and an RF transmitter 205c so that the computer 200 can wirelessly transmit and receive predetermined MP3 data.

The apparatus for reproducing and transmitting MP3 data using Bluetooth according to an exemplary embodiment of the present invention configured as described above will be described with reference to the accompanying drawings.

First, in order for a user to download predetermined MP3 data using the computer 200 and transmit the predetermined MP3 data stored in the computer 200 to the MP3 player 100, the Bluetooth transmission / reception module 205 may be used. Is transmitted to the MP3 playback apparatus 100 by using. In this case, the computer 200 may wirelessly transmit MP3 data to up to seven MP3 playback apparatuses 100.

In this case, the power supply unit 101 is activated to supply power to each part of the MP3 player 100, and the user can receive the MP3 data transmitted from the computer 200 by using the key input unit 111. Enter a predetermined control message.

In addition, the MP3 player 100 may receive or receive MP3 data from another MP3 player using the Bluetooth transceiver module 103.

In other words, when the user wants to transmit / receive MP3 data, the user checks the list of MP3 data stored in the memory 107 through the key input unit 111 through the display unit 109 and then transmits the MP3 data. The data is selected and transmitted to the Bluetooth transmission / reception module 103.

In this case, the audio data stored in the memory 107 by the user is changed to a packet format in which the baseband processor 103b adds an access code and a header under the control of the control unit 113, and the changed packet format is used for wireless transmission. The data packet is changed into a predetermined data packet for wireless transmission to another MP3 playback device in a frequency band set through the RF transmitter 130c.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the apparatus for reproducing / transmitting MP3 data using Bluetooth of the present invention, since the MP3 player can download MP3 data from not only a computer but also other MP3 player, the use of the MP3 player is further improved. There is an effect of convenience.

Claims (2)

A power supply unit for supplying appropriate power to each part of the MP3 player according to a user's request; A key input unit for inputting a control signal for transmitting or receiving MP3 data by the user; A baseband processor for converting the received data packet into an HCI packet and converting the received data packet into a wireless data signal for transmitting predetermined MP3 data and a wireless data signal transmitted from the baseband processor Bluetooth transceiver module comprising an RF transmitter for transmitting the RF receiver and an RF receiver for receiving a wireless data signal; MP3 data received from the Bluetooth transmission and reception module, a memory in which predetermined control data is stored; An audio signal processor configured to process an audio signal in order to reproduce MP3 data stored in the memory; A display unit which displays data information related to the MP3 data to be reproduced and the state of the MP3 player; And a control unit for controlling each unit of the MP3 player. The method of claim 1, The MP3 playback device is a device for playing / transmitting MP3 data using Bluetooth, characterized in that for receiving MP3 data using wireless data transmitted from a computer.