KR20050020277A - MP3 audio device having the data writing and playing function - Google Patents

Abstract

PURPOSE: An MP3 audio system having a function of data recording and regenerating is provided to perform MP3 data recording or regenerating without an MP3 decoder or a codec by using a CD writer. CONSTITUTION: The system comprises a controller(10), an input unit(12), a memory unit(14), a music selector(16), a power unit(18), a wireless receiver(20), a CD writer(22), a card writer(24), and a decoder(28). The controller(10) includes system control programs and data. The input unit(12) inputs information for detecting specific data among signals received via the wireless receiver(20). The memory unit(14) stores specific information inputted via the input unit(12). The music selector(16) selects specific music among stored ones. The power unit(18) supplies power for the system. The CD writer(22) stores specific data among signals, inputted via the wireless receiver(20), on a CD. The card writer(24) stores specific data among signals, inputted via the wireless receiver(20), on a memory card(26). The decoder(28) decodes the data stored on the CD or the memory card, and outputs the decoded data to an amplifier(30).

Description

MP3 audio device having the data writing and playing function

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automotive MP3 audio device, and more particularly, to selectively record and reproduce specific data such as music on a CD and / or memory card using a CD writer having a function of recording and reading data on a CD. MP3 audio device having a function of recording and reproducing data.

BACKGROUND ART With the advancement of vehicles, CD reproducing apparatuses as well as radio and tape reproducing apparatuses are conventionally mounted in vehicles. In addition, the CD playback apparatus has been advanced to enable the playback of MP3 files as well as the playback of conventional audio CDs.

1 is a conceptual diagram illustrating a process of generating an MP3 file from a conventional audio CD. Normally, data extracted using a CD ripper from a sound source (audio CD) is finally generated as an MP3 file using an MP3 encoder. In order to play the MP3 file generated in this way, an MP3 decoder is required. Therefore, to play MP3 files, the codec used for encoding and decoding is required.

However, despite the advancement of such functions, the conventional CD player has a problem of being limited to audio playback. Compared to tape recorders that provide the ability to record music or other information on audio tapes, the use of CD playback devices is declining, and the use of audio tapes is gradually decreasing. The emergence of a playback device is required. However, having a separate recording and reproducing apparatus has a problem of increasing the cost of the vehicle.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to selectively record specific data such as music on a CD and / or a memory card using a CD writer having a function of recording and reading data on a CD. An MP3 audio device having a function of recording and reproducing data that can be reproduced is provided.

Another object of the present invention is to provide an MP3 audio device having a function of recording and reproducing data that can selectively store and reproduce data required by a driver even while the vehicle is running.

MP3 audio device having a recording and reproducing function of the data of the present invention for achieving the above object, the control unit including a program and data for controlling the device, the information for determining the specific data from the signal received through the wireless receiver An input unit for inputting a memory, a memory unit for storing specific information input through the input unit, a curved selection unit for selecting a specific song from stored data, a power supply unit for supplying power to the device, and a signal for receiving a signal including the specific data A wireless receiver, a CD writer for storing specific data in a signal input through the wireless receiver, a card writer for storing specific data in a signal input through the wireless receiver in a memory card, and a CD or memory card. Decoder which decodes specific stored data and outputs to amplifier It should.

Hereinafter, an MP3 audio device having a recording and reproducing function of data of the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, a CD or CD retrievable (hereinafter, referred to as "divided") data is classified based on specific input information (e.g., frequency, time, genre, artist, title, etc.) that the driver needs to store. The specific data stored for playback in the immediate playback mode, and sequentially stored in the memory card for retrieval and output using the specific input information if not in the immediate playback mode. The inconvenience of the user sorting the specific data separately or separately storing the respective data can be eliminated.

2 is a block circuit diagram of an MP3 audio device according to the present invention.

As shown, the control unit 10 including a program and data for controlling the device, an input unit 12 for inputting information for determining specific data among the signals received through the wireless receiving unit 20, the input unit 12 Memory unit 14 for storing the specific input information input through the), curved selection unit 16 for selecting a specific song from the stored data, the power supply unit 18 for supplying power to the device, a signal containing the specific data The wireless receiver 20 for receiving the signal, the CD writer 22 for storing the specific data in the signal input through the wireless receiver 20, the specific data in the signal input through the wireless receiver 20 A card writer 24 for storing the data in the memory card 26 and a decoder 28 for decoding the specific data stored in the CD or the memory card 26 and outputting the decoded data to the amplifier 30.

In the present invention, the radio receiver 20 is used as an information source for recording and reproduction. The radio receiver 20 is a radio receiver capable of receiving various frequency bands. The signal received through the wireless receiver 20 becomes a modulated signal including specific data (for example, an MP3 file as an audio file). The audio file may be music or other voice information.

The controller 10 includes a control program and control data for controlling the MP3 audio device of the present invention, and may be configured using a microprocessor. The control state of the control unit 10 will be described later with reference to the flowchart of FIG. 3.

The input unit 20 is for inputting discrimination information for sequentially storing information input through the wireless receiver 20 to a target storage medium (CD and / or memory card). Specific input information input through the input unit 20 may be a radio frequency, a reservation time, a storage medium for storing received information (for example, a memory card or a CD), tag information (for example, a title, an artist, a genre), or the like. Becomes The storage medium is automatically determined to be CD when a lighter on operation for recording information is set.

Specific input information for determination input through the input unit 12 is stored in the memory unit 14 by the control unit 10. The memory unit 14 is configured using a memory device such as a flash memory. The input information stored for discrimination in the memory unit 14 is used for discriminating information received later by the control unit 10.

The curved tactile section 16 is for selecting specific data stored in the memory card 26, mainly music files (music songs). The curved tack unit 16 searches the curved cab according to the specific input information stored in the memory unit 14, and if the corresponding data exists, decodes the data using the decoder 28 and outputs the decoded data to the amplifier 30.

The power supply unit 18 is used to supply power to the MP3 audio device according to the present invention.

The wireless receiver 20 receives a radio signal through an antenna, and the driver may allow the driver to record necessary information among the information input through the wireless receiver 20. Song information is separated from the signals received by the wireless receiver 20 and input to the controller 10. Separation of the song information may be processed by the controller 10 using a device for separate song information separation, built-in song information function in the wireless receiver 20.

The controller 10 determines whether the input music information is input by the driver (or passenger) through the input unit 12 to correspond to specific input information stored in the memory unit 14. At this time, if the writer operation is set to the ON state, the tag information is first recorded using the tag information. For this determination, it is desirable to include information such as genre, artist, title, etc. in specific data received wirelessly.

The CD writer 22 is a device for storing data on a CD, and may be configured by using a CD writer or a CD writer. A user can insert a CD or a rewritable CD capable of repeating recording into the CD writer 22 and then activate and write a write function.

The card writer 24 is for recording data in the memory card 26. The card writer 24 writes data to memory cards of various formats used for conventional data recording, for example, memory cards such as MMC and smart cards. The card writer 24 performs the sorting function automatically by sorting the specific data according to the specific input information and sequentially storing the specific data according to the specific input information, especially when the data is not in the playback mode immediately after the specific data is stored on the CD. do.

The decoder 28 decodes the MP3 format music file to reproduce the music file. The decoder 28 includes a multi codec. In particular, the decoder 28 may use a multicodec CD player. The decoder 28 decodes using a codec suitable for the input MP3 data. The selection of such a codec may be performed by the decoder itself or by the controller 10.

The data decoded by the decoder 28 is amplified into a signal of sufficient magnitude by the amplifier 30 and then output through the speaker 32 so that the driver can listen to the recorded content.

Referring to the flowchart of Figure 3 the operating state of the present invention having the configuration as described above are as follows.

First, a CD or a CD capable of recording is inserted into the CD writer 22 to record the received data. Before or after the CD is inserted, the driver inputs specific input information for discrimination for storing the received data using the input unit 12. Specific input information includes radio frequency, time reservation, target medium, tag information, and the like. The specific input information is stored in the memory unit 14 by the controller 10.

In the state where the CD is prepared and the specific input information is stored as described above, the controller 10 detects whether the on-operation command of the CD lighter operation state is input while maintaining the standby state. When the operation command (switch on signal) is input from the switch sw for the CD writer operation, the storage section of the CD is automatically set, and the section is released at the same time as the operation is completed. Although not shown, the switch on command is performed through a switch included in the input unit 12.

At the same time, the controller 10 determines whether a received signal input through the wireless receiver 20 corresponds to a specific input information condition stored in the memory 14. Referring back to FIG. 2, the song information is separated from the signal input from the radio receiver 20, and the controller 10 determines whether the specific data currently input by using the song information corresponds to the condition.

As a result of the determination, when the received data corresponds to the specific input information, the received specific data is stored according to the tag information in the CD inserted into the CD writer 22.

After the specific data is stored in the CD as described above, it is determined whether or not to reproduce immediately. The immediate play mode may be a state already set by the driver or a command input by the driver during recording.

If it is determined that the playback mode is immediately, the controller 10 decodes the specific data stored in the CD through the decoder 28 and outputs it to the amplifier 30. The amplifier 30 amplifies the input decoded data and outputs the same through the speaker 32. The driver can listen to the recorded specific data.

On the other hand, if the immediate playback mode is not set, the control unit 10 separates the specific data for each type according to the information of the specific data and stores them in the memory card 26 mounted in the card writer 24. Received data stored in the memory card 26 are stored separately by type.

When the storage of the specific data in the memory card 26 is completed, the controller 10 waits for input of the next command. The driver can select the stored data through the curved tactile portion 16 in this waiting state. When the driver selects specific input information (here, title, artist, genre), the controller 10 performs a search by using the stored information. If the specific data exists as a result of the search, the decoder 28 decodes the data using the decoder 28 and outputs the decoded data to the amplifier 30. However, after the search about three times, if the specific data does not exist, the search operation is terminated.

In the above description of the present invention, the specific data has been described as an example of a music file having an MP3 format, but it is obvious that the music file or the file including voice information of another format can be received and stored. In particular, in the case of voice information, it may be an audio file for language learning. In particular, music files of other formats can be easily played back by embedding the codec of the file in the decoder.

As described above, according to the present invention, it is possible to selectively record and reproduce specific data such as music on a CD and / or a memory card in real time by using a CD / writer that has a function of recording and reading data on a CD. have.

1 is a conceptual diagram illustrating a process of generating an MP3 file using a sound source,

2 is a block circuit diagram of an MP3 audio device of the present invention;

3 is a flowchart illustrating an operating state of the MP3 audio device of the present invention.

※ Explanation of symbols about main part of drawing ※

10: control unit 12: input unit

14: memory section 16: curved section

18: power supply unit 20: wireless receiving unit

22: cd writer 24: card writer

26: memory card 28: decoder

30: amplifier 32: speaker

Claims (3)

A control unit 10 including a program and data for controlling the device, an input unit 12 for inputting information for determining specific data among signals received through the wireless receiving unit 20, and input through the input unit 12 A memory unit 14 for storing specific input information, a curved tag unit 16 for selecting a specific song from stored data, a power supply unit 18 for supplying power to the device, and a radio for receiving a signal including specific data A receiver 20, a CD writer 22 for storing specific data in a signal input through the wireless receiver 20, and a specific data in a signal input through the wireless receiver 20, and a memory card 26. Card writer 24 for storing the data and a decoder 28 for decoding specific data stored in the CD or memory card 26 and outputting the decoded data to the amplifier 30. BMP-3 audio devices with and playback. The method of claim 1, MP3 audio device having a function of recording and reproducing data, characterized in that the decoder (28) comprises a multi codec. The method of claim 1, MP3 audio device having a recording and playback function of the data, characterized in that the specific data received through the wireless receiver 20 is an audio format file.