KR20050101289A - The portable multimedia player which has a voice output with the radio - Google Patents

Abstract

 The present invention relates to a multimedia player for providing various additional functions and enabling wireless transmission of a voice signal to be output to an external audio output device.

The present invention is to provide a variety of additional functions to the MP3 playback device that provides a simple function to maximize the functions of the portable multimedia player, to provide a variety of enjoyment to the user, by providing a wireless transmission function output By outputting the audio signal to a predetermined external audio device, and thus the audio signal can be output through the audio device, allowing multiple people to listen to music at the same time, and also read and display lyrics information, It is possible to provide a karaoke function that allows the user to sing a song while viewing the lyrics by enabling the voice input of the voice, and by compressing and storing the input voice signal of the user to be stored in the memory means as sound source data, voice It can provide voice recorder function. Check it.

Description

The portable multimedia player which has a voice output with the radio}

The present invention relates to a multimedia player such as an MP3 player, a voice recorder, a portable A / V device, and in particular, provides various additional functions and operates according to the provided functions. The audio signal to be output is wirelessly transmitted to an external audio output device.

Among the video compression technologies, there is the MPEG standard (MPEG; Moving Picture Experts Group) as the international standard, and these standards include MPEG 1, MPEG 2, MPEG 3, .... It has its own characteristics in relation to video and audio, video communication, and still images.

An audio file, commonly called an MP3 file, means that the audio file is compressed and stored using the MPEG Audio Layer 3 specification.

The higher the compression rate, the lower the quality of the sound. To minimize this, the compression of the data is performed by dividing the frequency band sensitive to the human hearing and the relatively high frequency part which is not sensitive.

As a result, audio loss can be reduced to the maximum in MP 3 audio as compared with high compression ratio, and it is widely used as an audio-related compression technology.

At present, it is possible to simply download down the Internet (Down load) and enjoy digital music using the application of your PC, so that many netizens use MP3 files, which makes it easy to carry them from MP3 file players. Portable MP3 player is widely used.

In recent years, music files can be created from music CDs just like MP3s, and existing MP3 playback programs such as WinAmp can be used to listen to music. Moreover, the sound quality is better than that of MP3s, but on average is 38% higher than MP3 files. There are many advantages, such as having the size of, OGG vorvis (OGG) is used as a new digital file format.

The present invention relates to a portable multimedia player such as a device for playing digital music files such as MP3 or OGG. The MP3 player will be described as follows.

A general MP3 playback apparatus includes a memory means for storing a sound source file (MP3 file), a communication interface means for receiving a sound source file through a computer and storing it in the memory means, and playing back a sound source file stored in the memory means. In order to decode the sound source file, decoding means are selected, digital / analog conversion means for converting the decoded digital data into analog data, and device functions such as selection and volume of the sound source file to be reproduced are selected. A user key input means for storing the sound source file received through the communication interface means in the memory means and control means for controlling the reproduction operation of the sound source file stored in the memory means, and a speaker and earphone for outputting the reproduced sound. It comprises a sound output means such as, and a power supply means.

The MP3 player having such a configuration receives an MP3 file transmitted through the Internet or a self-manufactured computer using a computer, and stores the file according to the capacity of the memory means. Selectively play through the selection of.

The control means loads corresponding sound source data among the sound source data stored in the memory means according to a user's selection.

Since the data loaded from the memory means is compression encoded data, the decoding means decodes the data.

The digital data decoded by the decoding means is converted into analog data through digital / analog conversion means and transmitted to the voice output device, thereby outputting the voice to the user.

The sound source data stored in the memory means is provided through a computer as necessary, and the computer includes a separate program for storing the sound source data in the memory means of the MP3 player.

It is connected to the computer through the communication interface means, and receives the sound source data stored in the computer through the communication interface means, the control means stores the sound source data input through the communication interface means in the memory means.

The MP3 player having the above operation mainly has a main function of reproducing sound source data and providing it to the user, and receiving such sound source data according to a user's selection and storing it in a memory means to always carry the desired sound source data. Has the ability to hear.

In the present invention, by providing a variety of additional functions to the MP3 playback device that provides such a simple function to maximize the functionality of the portable multimedia player, it is possible to provide a variety of enjoyment to the user.

The present invention provides a wireless transmission function to output the output audio signal to a predetermined external audio device, thereby allowing the audio signal to be output through the audio device, allowing multiple people to listen to music at the same time. .

The present invention reads and displays lyrics information included in an MP3 file to be reproduced and output, and enables a user's voice input so that the user can sing while watching the lyrics to provide a karaoke function.

The present invention provides a voice recorder function by compressing and storing an input voice signal of a user so as to be stored in the memory means as sound source data.

Portable multimedia player having a wireless transmission function of the present invention,

A memory means for storing sound source data, a communication interface means for receiving sound source data via a computer, and storing the sound source data in a memory means, and decoding means for decoding a sound source file to reproduce sound data stored in the memory means ( decoder, digital / analog conversion means for converting digital data decoded by the decoding means into analog data, voice output means for voice output, user voice input means for inputting a user's voice, user voice input An analog / digital conversion means for converting a user voice signal input through the means into a digital signal, an encoding means for encoding the user voice signal converted into a digital signal to be stored in the memory means, and a user voice User voice signal input through input means and analog output A voice signal mixing means (mixer) for mixing and outputting the voice signals, display means for displaying the operation state of the user apparatus and the lyrics information contained in the reproduced sound source data, and an analog voice signal outputted to the voice output means. Wireless memory means for wireless transmission, user key input means including selection of a sound source file to be reproduced and selection of a wireless transmission function, karaoke function, and user voice recording function, and a sound source file received through a communication interface means to a memory means; And a control means for reproducing the sound source file stored in the storage and memory means and controlling the operation of a function selected by the user, and a voice output means for outputting the reproduced sound.

Referring to the embodiment shown in Figure 1 attached to the portable multimedia player having a wireless transmission function of the present invention having such a feature will be described as follows.

Reproducing the sound source data stored in the memory unit 10, the communication interface 20 with the computer for receiving sound source data through the computer and storing the sound source data in the memory means, and the memory unit 10 for storing the sound source data Decoder 30 for decoding a sound source file, a D / A converter 40 for converting digital data decoded by the decoder 30 into analog data, a voice output unit 50, and a user's voice. A microphone 60 for input, an A / D converter 70 for converting a user voice signal input through the microphone 60 into a digital signal, and a memory unit 10 for converting a user voice signal converted into a digital signal. Encoder 80 for encoding in order to store in, a mixer 90 for mixing and outputting the user voice signal input through the microphone 60 and the output analog voice signal, and a voice output unit Analog voice signal output to 50 Wireless transmission unit 100 for transmitting the radio wirelessly, the LCD display unit 110 for displaying the operation status of the device and the lyrics information contained in the sound source data to be reproduced, the selection and wireless transmission function of the sound source file to be played, karaoke function, The user key unit 120 including the selection key of the user voice recording function and the sound source file received through the communication interface unit 20 are stored in the memory unit 10 and the reproduction of the sound source file stored in the memory unit 10 is performed. And a controller 130 that performs operation control on the function selected by the user.

The present invention characterized by such a configuration,

In a general MP3 player,

The microphone 60 is configured as an input means for the user voice, and the user voice signal input through the microphone 60 may be stored in the memory unit 10 as sound source data.

In addition, it is possible to read and display the lyrics information about the sound source data to be reproduced, and to configure a mixer unit 90 for mixing the user voice signal input through the microphone 60 and the output signal of the analog sound source data to be output voice Provide karaoke.

In addition, the wireless transmitter 100 is configured to wirelessly transmit the voice output signal output as the voice.

The wireless transmitter 100 has a configuration in which a voice output signal is loaded on a predetermined FM frequency band so as to be received by a radio having a tuner for receiving an RF frequency.

In this embodiment, in order to use a radio, which is a general receiver, the wireless transmitter 100 is configured as a high frequency transmitter that carries an audio output signal in an FM frequency band.

In another embodiment, the infrared transmission unit or other output device may be configured to output the audio output data to the infrared signal by the wireless transmitter 100, but in this case, the infrared receiver means for receiving the signal to the external audio device; In addition, the data processing means for reading the voice signal from the infrared signal received by the infrared receiving means should be configured.

As described above, the wireless transmitter 100 may be implemented by various methods. In this case, as described above, a means for receiving and processing a signal corresponding to the external audio device must be configured to use the voice output function by the external audio device. It becomes possible.

Referring to the operation of the present invention having such a configuration in detail as follows.

First, when a user first selects playback for desired data among sound source data stored in the memory unit 10 through the user key unit 120, the controller 130 reads the sound source data selected by the user from the memory unit 10. It is.

The sound source data thus read is sent to the decoder unit 30 to decode the encoded sound source data through a decoding process.

The decoded data is converted into an analog signal capable of outputting voice through the D / A converter 40 and output through voice output unit 50.

At this time, when the user selects the wireless transmission function of the user key unit 120, the analog voice signal converted by the D / A converter 40 is wirelessly transmitted through the wireless transmitter 100,

The analog signal converted by the D / A converter 40 is supplied to the wireless transmitter 100 through the mixer 90, and the analog voice is transmitted to the frequency within a predetermined frequency range by the wireless transmitter 100. The signal is transmitted wirelessly.

The radio frequency transmitted in this way is received by the high frequency receiving apparatus (radio) located in a predetermined area from the apparatus of the present invention and is output through the speaker in the radio, so that several people can listen.

Here, when there is a signal introduced from the microphone 60 in the mixer unit 90, the mixer unit 90 mixes the user voice signal introduced through the microphone 90 with the analog voice signal and transmits the wireless signal to the wireless unit 100. By transmitting to the wireless transmission through the wireless transmission unit 100, its function is a karaoke function.

When the user selects the karaoke function through the user key unit 120, the controller 130 plays the sound source data through the same process as described above, and the lyrics included in the digital sound source data decoded through the decoder unit 30 are decoded. The information is read and displayed through the LCD display 110.

If the source data does not contain lyrics information, you should have a separate file with lyrics information.

If the lyrics information is not included in the sound source file, the controller 130 searches whether the lyrics information file for the sound source file to be played exists. If the lyrics information file exists, the controller 130 reads and displays the lyrics information file.

In this case, the lyrics information displayed through the LCD display unit 110 is displayed in synchronization with the voice signal output or wirelessly transmitted by the controller 130.

The controller 130 may synchronize the lyrics information with the playback information by reading time information included in the file.

Therefore, the user can sing along with the voice signal (accompaniment) that is outputted while watching the lyrics displayed on the LCD display 110.

In this way, the user's voice signal is input through the microphone 60, and the voice signal of the user is transmitted to the mixer unit 90.

The mixer unit 90 mixes the user voice signal transmitted as described above and the analog voice signal converted through the D / A converter 40 as described above, and outputs the mixed voice signal to the wireless transmitter 100. The song is wirelessly transmitted from the transmitter 100 and the user's song is output through an external audio device (radio) together with the accompaniment.

 Meanwhile, when the user selects the voice recording function, the controller 130 encodes the user voice signal input through the microphone 60 into digital data and stores the sound data in the memory unit 10 as sound source data.

The operation process, the user voice signal input to the microphone 60 is converted into a digital voice signal through the A / D conversion unit 70, the converted digital voice signal is encoded (encoded through the encoder 80) In accordance with the control of the controller 130 is stored in the memory unit 10 as a sound source file.

Therefore, the user can select the sound source file stored by the user and play the music as described above.

In this way, the user can select a user key configured in the user key unit 120 to store a user voice signal using the microphone 60, a voice lyrics display, a user's voice input and a mixture of the voice signal reproduced It provides a karaoke function through, and can be provided with an external audio output function to enable the audio output through the external audio device by transmitting a wireless signal output through a variety of functions.

According to the present invention, if a voice recording function capable of producing a voice message and a receiving device (audio device) are provided within a certain distance, the user can share and listen to music with several people and can also sing a song with the lyrics. While having a portable feature such as a karaoke function can provide a variety of additional functions to the user.

1 is a block diagram showing the configuration of a portable multimedia player having a wireless transmission function of the present invention.

Claims (3)

A multimedia player capable of storing encoded digital sound source data and decoding and reproducing the stored sound source data. A user voice input means for inputting a user's voice, a voice signal mixer (mixer) for mixing and outputting a user voice signal inputted through the user voice input means and a reproduced output voice signal, and outputting the voice output means Wireless transmission means for wirelessly transmitting the voice signal to a predetermined signal and wirelessly transmitting the voice signal to an external audio device capable of receiving the wirelessly transmitted signal And a user key input means including a key for controlling, a control means for performing a control process for a function selected by a user through the user key input means, and a voice output means for outputting a reproduced sound. A portable multimedia player having a wireless transmission function. 2. The apparatus of claim 1, further comprising analog / digital conversion means for converting a user voice signal input through the user voice input means into a digital signal, and encoding for storing the user voice signal converted into a digital signal in a memory means. And an encoder, wherein the user key input means further comprises a key for selecting a user voice storage function for storing the user's voice as sound data in the memory means. Portable multimedia player having a. The portable multimedia apparatus according to claim 1 or 2, further comprising lyrics information display means for displaying lyrics information on the reproduced sound source data in accordance with the reproduced and output audio signal. player.