KR20000032561A - Portable multimedia file player - Google Patents

Abstract

PURPOSE: A portable multimedia file player is disclosed to playback the audio/video file, text file, and other compressed multimedia files. The files can be downloaded using either direct or wireless connection and it allows the user to receive broad multimedia sources and paper less information transfer. CONSTITUTION: A portable multimedia file player is composed of a wireless communication server or a direct connection server, modem, signal processor, decoder, encoder, memory, and data output source such as LCD screen or speakers. A wireless communication or a direct connection server sends various sources of multimedia files and the modem(21,22) receives the files and routes it to the signal processor(30). The signal processor(30) identifies the file and it is decoded by the decoder(31). The decoded information is sent to data output source(60) and it is transmitted to the user through such devices as speakers or LCD screens. By selecting the buttoned options on the data output source, the user can select desired volume, text, and other options.

Description

Portable multimedia file player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable multimedia file player for reproducing a corresponding file and outputting a sound or a video for a user to view in order to support a service of playing a multimedia compressed file such as an audio / video file or a text file. By constructing a hardware decoder that can decode multimedia input files delivered through various multimedia functions such as still image, video, sound, etc., multimedia receiving module can be easily used as a low-end central processing unit (hereinafter referred to as CPU). The present invention relates to a portable multimedia file player configured to be able to play multimedia files of various sources and to be used as a paperless information receiving means.

Recently, as mobile communication and PC communication have developed rapidly, multimedia service functions using the same have been widely spread. However, since currently used communication systems are limited to wires, PC communication is highly dependent and portable players of most multimedia files are limited to audio files.

Therefore, when multimedia files from various sources such as audio, video, text, etc. are delivered using wired as well as wireless communication lines, portable multimedia files can be played back to be supported by simpler devices, multimedia services of carriers and communication devices. Regenerators are currently being actively developed.

1 is a diagram schematically illustrating a configuration of an audio file player among multimedia file players according to the related art.

Referring to FIG. 1, the audio file player 1 includes a decoder for converting an audio compressed file into a code that can be processed by a system and a microcomputer for controlling the audio file. .

In particular, the most common way to play audio files is to use a PC 2. That is, the PC 2 and the audio file player 2 download audio files from the PC 2 to the audio player 1 by using input / output ports (I / O ports). To play a specific song according to the audio file.

Therefore, in the related art, a multimedia file is downloaded by using PC communication, and a multimedia file player such as the audio player 1 is used to play a multimedia file mainly related to audio, so that the user can use a sound system mounted on a high-performance PC 2. You can get the service you want. As a result, the performance of the PC plays an important role, and is limited to audio files, thereby enabling the reproduction of multimedia files and having a high dependency on PC communication.

The present invention has been made to solve the above problems of the prior art, the object of which is to allow the multimedia file such as text, music, video input from the outside while downloading the multimedia file through a wired or wireless communication line By implementing a portable multimedia file player that can be played back, a user can provide a more multimedia service and can provide a portable multimedia file player that can be used as a paperless receiver.

1 is a diagram schematically illustrating a configuration of an audio player in a multimedia player according to the related art.

2 is a diagram showing the configuration of a portable multimedia file player according to the present invention;

3 is a view illustrating in more detail the signal flow and its configuration according to FIG.

4 is a diagram illustrating a connection state between a portable multimedia file player, a PC, and an input medium according to the present invention;

FIG. 5 is a diagram illustrating an embodiment of an electronic newspaper service according to one embodiment of FIG. 2.

<Explanation of code about main part of drawing>

11: Wireless communication medium 11 ': Wireless data communication service company

12: Wired communication medium 12 ': Wired data service company

20: communication modem 21, 22: wired and wire communication unit

30: signal processor 31: decoder

40: encoding input unit 45: input medium (video)

50: memory 55: memory card

60: data output unit 70, 75: multimedia file player

According to a first aspect of a portable multimedia file player according to the present invention for solving the above problems, a file processing unit for converting a multimedia input file transmitted through a wired or wireless communication line to be processed in the system and outputs it as playback data; And a memory unit configured to receive the stored data, store the same, and to take it out if necessary, and to upload or download the multimedia input file to perform editing of the multimedia input file. And a file output unit for receiving the reproduction data and outputting the reproduction data to a user.

In addition, according to an additional aspect of the present invention, the file processing unit may be provided with a small number of decoders required by a user, such as a decoder for a video, a decoder for a still image, and a decoder for sound. )

According to another additional feature of the present invention, the file output unit is provided with a small number of buttons, such as playback and up / down, for outputting a sound or an image according to the playback data.

The file output unit may include a speaker for sound output or an LCD for image output.

Hereinafter, an embodiment of a portable multimedia file player according to the present invention will be described with reference to the accompanying drawings.

2 is a view showing the configuration of a portable multimedia file player according to the present invention, Figure 3 is a view showing the signal flow and its configuration in more detail according to Figure 2, Figure 4 is a portable according to the present invention FIG. 5 is a diagram illustrating a connection state between a multimedia file player, a PC, and an input medium. FIG. 5 is a diagram illustrating an embodiment of an electronic newspaper service according to one embodiment of FIG. 2.

First, referring to FIGS. 2 and 3, the portable multimedia file player performs a signal processing or interface connection to deliver a multimedia file from the wireless communication medium 11 or the wired communication medium 12 to the system. The communication modem 20, the signal processor 30 for extracting or synthesizing the necessary information from the multimedia file received through the communication modem 20, and generating and outputting it as specific reproduction data, and each character through the input medium. In order to transmit encoded data related to sound, video, etc. to the system, the encoding input unit 40 converts the signal into the signal processor 30 and transmits the specific reproduction data of the signal processor 30 to the signal processor 30. A memory unit 50 for receiving and storing the same and storing the same if necessary, and specific reproduction data of the signal processor 30. Data output unit 60 for receiving a sound or video output so that the user can hear or see it, and the user can arbitrarily edit the multimedia file, and at the same time the wired / wireless communication media (11, 12) It also includes a CPU (not shown) that can be used to transfer data to other computer systems in remote locations.

In particular, the communication modem 20 is a wireless communication unit 21 for performing signal demodulation and demodulation for signal processing of the multimedia file received through the wireless communication medium 11 and received through the wired communication medium 12 Wired communication unit 22 for connecting the multimedia file interface.

In addition, the signal processor 30 uses a digital signal processing technology such as an application specific integrated circuit (ASIC) or a digital signal processor (DSP), and is configured in hardware. It consists of a decoder 31. That is, only representative ones such as a decoder (MPEG) for a video, a decoder (Gif) for a still image, and a decoder (MP3) for a sound are configured in hardware. Therefore, it is possible to easily configure the multimedia receiving module using a low-end CPU.

The data output unit 60 may include at least one of a speaker for sound reproduction and an LCD for image output, and a PLAY button for reproducing the speaker or LCD, and a volume level or a progress state of the image. A few drive buttons, such as an up / down button, are included.

On the other hand, the memory unit 50 is also removable and easy to store and use a memory card, such as flash ROM (EEPROM) or general-purpose memory.

Next, referring to FIG. 4, a multimedia file player 70, a PC for editing specific playback data output from the multimedia file player 70 or uploading / downloading files for each multimedia file transmission; Input media (e.g., video) 45 for transmitting encoded data, such as video, text and sound, to the system are interconnected.

Finally, a system that can be implemented using FIGS. 2 to 4 includes a multimedia education function using a portable electronic newspaper using a wired / wireless service of a newspaper broadcasting company or a communication service of various educational institutions, or sports, culture, or transportation means. It can be implemented by various paperless transmission means such as a portable service providing means for emphasizing a service of a specific use.

Here, referring to the electronic newspaper service with reference to FIG. 5, a newspaper broadcaster texts various news items to the multimedia file player 75 with the support of a wireless data communication service provider 11 ′ or a wired data service company 12 ′. Or the images are properly mixed and transmitted, and the user can immediately see the contents output from the multimedia file player 75 and store the contents output from the multimedia file player 75 in the memory card 55. You can leave it out if you need to.

In this case, the wired data service company 12 stores various news required by the user in a storage means and installs a memory vending machine so that the storage means can be automatically discharged when a predetermined amount is paid. If you only have a file player 75 may be able to access a variety of news.

As a result, the multimedia file players 70 and 75 have a CPU and a decoder, unlike PCS or text beep which are commercially available, and can play video and music files. .

In addition, the multimedia file players 70 and 75 may also generate a difference from a hand-held PC (hereinafter referred to as HPC) or a personal digital assistant (hereinafter referred to as a PDA). The file players 70 and 75 are made up of only a few buttons necessary for controlling PLAY, up / down, etc., and have a minimal configuration using a low performance CPU and a hardware decoder module for storing information using a removable memory card. have.

However, the HPC is expensive with PC performance using a high-performance CPU and software decoder, and the PDA accepts a signal output from the PC without a separate decoder and performs a frequency change so that it can be connected to another display means. It is distinguished from the multimedia file players 70 and 75 in that it includes only an RF module.

Looking at the operation of the portable multimedia file player according to the present invention configured as described above are as follows.

First, when multimedia input files of various sources related to video, text, and sound are transmitted through the wired or wireless communication media 11 and 12, the signals are input from the wired and wireless communication units 21 and 22 and processed as signals that can be processed by the system. The converted signal is transferred to the signal processor 30.

Then, the signal processor 30 classifies the still image, the video, the sound, and the like, and decodes the data through the decoder 31 according to the result of the classification to generate specific playback data and transmits the data to the data output unit 60.

The data output unit 60 outputs an image or outputs sound to a user through a speaker or an LCD. At this time, the user can control and select a desired image, text, sound, etc. by using a few buttons installed in the data output unit 60.

In addition, the multimedia file players 70 and 75 may be connected to a PC or an input medium 45 to edit the specific playback data through the PC, and to freely upload or download files for multimedia file transmission. In addition, encoding data related to an image, text, and sound may be transmitted to the multimedia file players 70 and 75 through the input medium 45 to perform encoding.

As a result, the portable multimedia file player of the present invention can encode and decode multimedia files related to still images, videos, sounds, etc., such as texts, and can be easily carried to handle various types of information through paperless transmission means. Will be.

The portable multimedia file player according to the present invention configured as described above allows the multimedia file such as text, music, video, etc., which is input from the outside, to be downloaded while the multimedia file is downloaded through a wired or wireless communication line. By implementing a multimedia file player, a user can be supported with more various multimedia services and can be utilized as a paperless dedicated receiving means.

Claims (4)

A file processing unit for converting the multimedia input file transmitted through a wired or wireless communication line to be processed by the system and outputting the reproduced data; and a memory unit receiving the stored data and storing the reproduced data to be taken out if necessary. And a central processing unit (hereinafter referred to as a CPU) that supports the editing or editing of the multimedia input file by uploading or downloading the multimedia input file, and receiving the playback data and outputting the image or sound to the user. Portable multimedia file player comprising a file output unit. The method of claim 1, The file processing unit is a portable multimedia file, characterized in that the hardware is configured with a small number of decoders required by the user, such as a decoder (Decoder) for video, a decoder for still images, and a decoder for sound. Player. The method of claim 1, The file output unit is a portable multimedia file player, characterized in that provided with a small number of buttons, such as play, up / down (UP / DOWN) to output the sound or video according to the playback data. The method of claim 1, The file output unit is a portable multimedia file player, characterized in that configured to include a speaker for sound output or an LCD for image output.