KR100262969B1 - Digital Audio Player for Internet Communication Terminal - Google Patents

Abstract

The present invention relates to a digital audio player for an internet communication terminal which outputs audio by transmitting audio data and a playback program on the Internet web from an internet communication terminal to an external small IDA (digital audio for an internet communication terminal) player.

The digital audio player according to the present invention includes data receiving means for receiving audio data and a playback program from an internet communication terminal, a first memory for storing the audio data received by the data receiving means, and the data receiving means. A second memory for storing the playback program received by the second memory, a keypad for selecting audio data to be played back among recording modes of the first memory and the second memory, and audio data stored in the first memory; Control means for controlling the recording modes of the first and second memories in accordance with an instruction from the second memory, and for reproducing audio data on the selected first memory using a playback program stored in the second memory; Obtaining voice data output means for transmitting audio data in the form of voice Compared.

According to the present invention, the user can repeatedly play the desired audio file regardless of time even when the user moves.

Description

Digital Audio Player for Internet Communication Terminal

1 is a block diagram of an Internet television according to the prior art.

2 is a diagram schematically showing an internet television system to which a digital audio player for an internet communication terminal according to an embodiment of the present invention is applied.

3 is a detailed block diagram of a digital audio player for an internet communication terminal according to an embodiment of the present invention.

4 is a flowchart illustrating a recording and reproducing process of a digital audio player according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

100: data reproducing unit 8, 36: central processing unit

4: Main memory 18: Sound Tard

24: IDA Player 26: Remote Control

22: Internet television 28: infrared transceiver

30: first flash memory 32: second flash memory

34: wireless receiver 38: keypad

40: sound control device 42: D / A converter

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital audio player for receiving and reproducing audio data on the Internet web through an internet communication terminal, and more particularly, to a digital audio player for an internet communication terminal that is portable so that a user can listen to desired audio data even when moving. will be.

In general, an Internet is a network that connects a plurality of LANs (LANs) to act as a single network. Recently, the Internet is a world browser, which is an Internet browser, along with the Internet, which is a global communication network. With the advent of Web), computer-based communication is developing at an alarming rate. In this way, as the range of the communication network expands around the world and multimedia technologies improve, not only the amount of information provided through the Internet, such as texts, games, movies, and latest song information, but also the field of provision is enormous. In addition, information such as voice and video information provided by the Internet is usually transmitted in a compressed form in order to reduce the amount of data and the transmission time. Accordingly, a communication terminal such as an Internet television, which has not only limited Internet communication to a computer but also has an optimum environment for using the Internet in advance and easily connects to the Internet, enables communication.

However, since an Internet television or personal computer connected to the Internet and used as a communication terminal is implemented to use both audio and video information, its volume becomes large and it is difficult for a user to carry it. As a result, the user could not use the audio information on the Internet between mobiles. For reference, a conventional Internet communication terminal will be described with reference to the accompanying drawings.

1 is a block diagram of an existing Internet television, in which a communication interface 12 relaying information from a communication network 23 and compressed video and audio data received through the communication interface 12 (hereinafter, And a television interface 16 for transmitting the data restored by the data reproducing unit 100 to the television screen display unit 20, and the data reproducing unit. Connected to a central processing unit (hereinafter referred to as " CPU ") 8 of 100 to input a video signal from the data reproducing unit 100 to the television interface 16 so as to input a video signal. Internet with a video unit 14 for processing the display on the screen and a sound card 18 for inputting audio data so that the user can listen through the speaker. It shows a rebijeon.

In the configuration of FIG. 1, the data reproducing unit 100 includes a flash memory 6 for storing audio data input through the communication network 23, and a program ROM 2 for storing reproducing programs capable of reproducing compressed audio data. And a CPU 8 connected between the flash memory 6, the program ROM 2, the main memory device 4, and the remote controller light receiving unit 10.

The communication interface 12 connects to the Internet or a personal computer communication network via the communication network 23, receives data and stores the data in the flash memory 6 of the data reproducing unit 100. The CPU 8 determines whether the audio data transmitted to the flash memory 6 is compressed or not, and accordingly, the compressed audio data is converted into the original audio state by using one of the playback programs in the program ROM 2. Restore to data The restored audio data is supplied to a television speaker, which is present in the television screen display unit 20 via the sound card 18 and the television interface 16, and is converted into a voice that can be heard by the user by the speaker.

As described above, since the audio information present in the Internet site is transmitted only through the speaker installed in the Internet television, the user cannot use the audio information while moving. In addition, as well as the Internet TV, communication terminals such as computers have a large volume, which is difficult for a user to carry and use.

Accordingly, an object of the present invention is to provide a digital audio player for an internet communication terminal that allows a user to carry audio information on the internet web received by the internet communication terminal so that the user can listen on the go.

Another object of the present invention is to provide a digital audio player for an internet communication terminal which stores audio information on the internet in a compressed state so that a user can use an amount of audio information.

The digital audio player for an internet communication terminal according to the present invention is connected to an internet network, and receives a playback program for playing back audio data and audio data from the internet network, and a communication terminal including data transmission means for transmitting the audio data and the playback program. Wow; Data receiving means for receiving audio data and a playback program from the communication terminal, a first erasable memory for storing audio data received by the data receiving means, a second for storing the playback program received by the data receiving means A keypad for selecting audio data to be played back among recording modes of the erasable memory, the first erasable memory and the erasable memory, and audio data stored in the first erasable memory; first and second erasing according to instructions from the keypad Control means for controlling the recording mode of the rewritable memory and reproducing the audio data on the selected first erasable memory using the reproducing program stored in the second erasable memory, and audio data reproduced by the control means in the form of voice. A mobile terminal including a sound data output means for transmitting The.

Other objects and features of the present invention in addition to the above objects will become apparent from the following description of the embodiments with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3.

2 is a schematic diagram of an Internet television 22 system to which a digital audio player for an Internet communication terminal (hereinafter referred to as an "IDA player") 24 according to an embodiment of the present invention is applied.

When the audio data or playback program on the Internet web received through the communication network 23 is to be transmitted from the Internet television 22 to the IDA player 24, the IDA player 24 is transferred to the infrared transmitting / receiving unit of the Internet television 22 ( 28), so that the signal can be transmitted and received between the IDA player 24 and the Internet television 22. When the signal can be transmitted and received through the above process, the user selects the information to be transmitted from the Internet television 22 to the IDA player 24 using the keypad of the IDA player 24 and the television remote control 26. The Internet television 22 transmits the corresponding information to the IDA player 24 through the infrared transceiver 28.

FIG. 3 is a block diagram showing an IDA player according to an embodiment of the present invention. The keypad 38 for inputting a command for a type of data, an operation mode, and audio information is provided from the Internet communication terminal shown in FIG. A wireless flash receiver 34 for receiving data, a first flash memory 30 for storing audio data received by the wireless receiver 34, and a second program for storing a playback program received by the wireless receiver 34; Connected to the flash memory 32 and the wireless receiver 34, the keypad 38, and between the first flash memory 30 and the second flash memory 32 to use a playback program on the second flash memory 32; And a central processing unit 36 for restoring the compressed audio data on the first flash memory 30 and an analog audio output unit 120.

In the configuration of FIG. 3, the user uses the keypad 38 to select whether the data to be received from the communication terminal is audio data or a playback program. The radio receiver 34 receives an infrared signal of the corresponding data from the communication terminal and converts it into a data stream having compressed digital audio data or a playback program. In the recording mode, the CPU 36 selectively stores data from the radio receiver 34 in the first or second flash memories 30 and 32 according to the information on the type of data from the keypad 38. That is, the CPU 36 inputs the data input signal that the received data is a reproduction program to the first flash memory 30 when the data input signal that the data received from the keypad 38 is audio data is input. In this case, it is selectively stored in the second flash memory 32. On the contrary, when reproducing data, the CPU 36 uses the corresponding reproducing program on the second flash memory 32 according to the compression type of the audio data selected by the keypad 38 on the first flash memory 30. Reads and restores selected audio data from among audio data stored in.

On the other hand, the analog audio output unit 120 receives digital data from the sound control device 40 and the sound control device 40 to generate serial data and serial clock from the audio data restored by the CPU 36 Digital / Analog Transducer (hereinafter referred to as "D / A Converter") 42 for converting to analog and an amplifier for delivering analog audio sound output from the D / A Converter 42 to the user It consists of 46 and the speaker 48.

The sound control device 40 receives the audio data restored from the CPU 36 and generates serial data and a serial clock in consideration of the sampling frequency and the sampling unit of the audio file. The D / A converter 42 converts the digital audio signal of the audio file input from the sound control device 40 into analog audio voice. And, the analog audio voice is converted so that the user can hear through the amplifier 46 and the speaker 48.

FIG. 4 is a flowchart for explaining the process of recording and reproducing data in the IDA player 24 according to the embodiment of the present invention, which is performed by the central processing unit 36 shown in FIG. 4A and 4B will be described in conjunction with the IDA player shown in FIG.

As shown in Figs. 4A and 4B, the IDA player 24 can be divided into a recording function for receiving and recording new data and a reproduction function for reproducing the recorded data.

4A is a flowchart for explaining a recording function in the IDA player 24. As shown in FIG.

In step 56, the user selects whether to record new data to the IDA player 24 or to play audio data already stored in the IDA player 24. If the data recording function is selected in step 56, the user places the IDA player 24 in front of a communication terminal capable of transmitting and receiving and selects whether the data to be received is audio data or a playback program using the keypad 38 or the remote controller 26 ( Step 60). In step 60, the remote controller 26 transmits the designated information to the infrared transmitting and receiving unit 28 of the Internet television in the form of an infrared signal.

If the user selects to receive the playback program in step 60, the designated playback program is transmitted from the communication terminal to the radio receiver 34 and converted into a data stream (step 74). The data converted in step 74 is stored in the second flash memory 32 through the CPU 36 (step 76). Since specific playback programs are already initialized in the second flash memory 32 before the product is released, steps 74 and 76 are performed only when the user wants to update the program.

Alternatively, if the audio data is selected to be received in step 60, the designated audio data is transmitted from the infrared transceiver 28 of the communication terminal to the radio receiver 34 of the IDA player 24, thereby compressing the compressed digital audio data stream. (Step 62). The compressed audio data stream is stored in the first flash memory via the CPU 36 (step 64).

The above steps 60 to 64 show the recording function of the general audio data in the IDA player 24 and are repeated as many times as the number of audio files (eg, pop songs, songs, classical music, etc.) desired by the user. do.

4B is a flowchart for explaining an audio data playback function in the IDA player.

If the data reproduction function is selected in step 56, the user designates a desired audio file using the keypad 38 or the remote controller 26 (step 58). If the audio file is specified in step 58, the CPU 36 selects a playback program on the second flash memory 32 according to the compression type of the designated audio data (step 66). The CPU 36 reads and expands the designated audio file from the first flash memory 30 using the selected playback program and restores the audio data to its original state (step 68).

The data restored through the above process is transferred to the sound control device 40 to generate the serial data and the serial clock according to the sampling frequency and the sampling unit of the corresponding audio file (step 70).

In step 72, the D / A converter 42 converts the digital audio signal of the audio file into analog audio voice. The analog audio voice thus converted is output through the amplifier 46 and the speaker 48 so that the user can listen (step 78).

As described above, the digital audio player for internet television according to the present invention downloads audio data on the Internet web to a memory in the small IDA itself through an internet communication terminal such as an internet television, and then reproduces it when the user desires. In addition, the digital audio player according to the present invention is miniaturized to be portable so that the user can listen to audio information on the Internet while moving. In addition, the digital audio player for Internet television according to the present invention stores audio data in a compressed state so that a user can use a large amount of audio information while moving.

As described above, the digital audio player on the Internet television has been described as a preferred embodiment of the present invention, but those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (4)

A communication terminal connected to an internet network, the communication terminal including data transmission means for receiving audio data and a playback program for playing back the audio data from the internet network and for transmitting the audio data and the playback program; Data receiving means for receiving audio data and a playback program from the communication terminal, a first erasable memory for storing the audio data received by the data receiving means, and the playback program received by the data receiving means. A second erasable memory for storing, a recording mode of the first erasable memory and the second erasable memory, and a keypad for selecting audio data to be played back from audio data stored in the first erasable memory, from the keypad. Control means for controlling the recording modes of the first and second erasable memories according to a command, and for reproducing audio data on the selected first erasable memory using a reproduction program stored in the second erasable memory, and the control means Audio data played back by the Audio data outputting means the portable terminal digital audio player Internet communication terminal comprising the including. The method of claim 1, And the communication terminal selectively transmits the audio data and the playback program to a data receiving means of the portable terminal according to a command specified by a user received from a remote controller. The method of claim 1, Wherein the first and second erasable memories are each a flash memory. The method of claim 1 The audio data output means includes a digital to analog converter for converting the reproduced audio data from the control means into an audio signal in analog form; A speaker for converting an audio signal from the digital / analog converter into voice; An amplifier connected between the digital / analog converter and the speaker to amplify the audio signal; And a sound control means connected between said control means and said digital / analog converter to adjust a conversion speed of said digital / analog converter in accordance with audio data from said control means.

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