KR100597537B1 - Apparatus and method for playing multimedia file - Google Patents

Abstract

The present disclosure relates to a multimedia player and a method for playing the same, and to play a video file by reading a script file input from an external device in a multimedia player loaded with a system kernel for memory management, processor management, and system diagnosis according to a power supply. It analyzes script files such as order, playback method, resolution, and sound function, reads the video file input from outside after analyzing the script file, and based on the file format related to graphic playback based on the information stored in the header Set the decoder properties, read the compressed objects included in the video file according to the specified format and save them in the form of temporary files, and control the playback of the video files based on the objects stored in the form of temporary files and connect them to the multimedia player. Display Output through the device and speakers.

Therefore, the present invention does not need to install a separate operating system and playback software, stable operation is possible even during continuous operation, as well as no abnormality in the system even in the event of sudden power off, convenient installation and maintenance without technicians To provide.

Multimedia, Player, Video, Flash

Description

Multimedia playback device and playing method {Apparatus and method for playing multimedia file}

1 is a block diagram schematically showing the configuration of a multimedia player according to the present invention;

2 is a view for explaining an example of use of the multimedia playback apparatus according to the present invention;

3 is a flow chart showing the operation of the multimedia playback method according to the present invention;

4 is a flowchart illustrating a playback process of a flash file as an example of use in the multimedia playback method according to the present invention.

Explanation of symbols on the main parts of the drawings

100: multimedia player 110: power unit

120: control unit 130: data memory

140: program memory 150: video output unit

160: audio output unit 170: auxiliary memory device interface unit

180: peripheral device interface 190: serial communication interface

200: memory card 300: display device

400: speaker 500: key input device

600: wired / wireless communication equipment

The present invention relates to a multimedia player and a playback method.

More specifically, the present invention relates to a multimedia playback device and a playback method for allowing various video files such as flash to be reproduced exclusively without a PC to be output through various display devices such as an LCD, a TV, and a beam projector.

In recent years, as the use of the Internet and high-end PCs has been greatly increased, the use of various multimedia files has greatly increased. Accordingly, as well as the development of various multimedia files, software for reproducing the multimedia files has been greatly developed.

Recently, the use of video files based on Flash or MPEG has been increasing.

In particular, the above-described flash among various video files is a file format developed by Macromedia, which is widely used on the Internet, and is widely known as an animation such as bizarre rabbit, zola man, and is widely used as a home screen or an advertising banner. Users are increasingly using them because they can be produced more simply and economically than multimedia formats.

However, in order to play various video files such as the flash file or the MPEG file, a PC equipped with an operating system and dedicated playback software should be used. That is, the inconvenience of having to use an expensive PC in order to play various video files has occurred.

An object of the present invention is to solve various problems of the above-described problems, and to play various display devices such as LCD, TV, beam projector, etc. by exclusively playing various video files such as flash, which was played on a PC-based computer with an operating system and playback software. The present invention provides a multimedia playback device and a playback method for outputting the same.

Another object of the present invention is to provide a multimedia storage device and playback to facilitate the user's use of the video file by having a removable storage medium and an environment in which wired / wireless communication networks can be used to input the video file from the outside. To provide a way.

Still another object of the present invention is to provide a multimedia playback apparatus and a playback method for allowing a user's key input while playing a video file by accommodating an interface of an external key input device such as a keyboard, a mouse, a touch panel, an electronic pen, and the like. To provide.

According to an aspect of the present invention, there is provided a multimedia player, comprising: a power supply unit supplying power for operation of each part of a multimedia player; Read script files stored in the memory card installed in the multimedia player to analyze the script files such as the playback order, playback method, resolution, and sound function of each video file in Flash, MPEG, etc. After analyzing the script file, read the header part of the video file to set decoder properties related to graphic playback, and control the playback of the video file according to the set decoder property to output through the display device and speaker connected to the multimedia player. A control unit to make it; A data memory serving as a temporary storage space when playing a video file under the control of the controller; A program memory for storing a program for driving a multimedia player, and having a system kernel loaded for memory management, processor management, and system diagnosis under control of a controller when power is supplied from a power supply unit; A video output unit for reproducing and converting a video file according to a format of a display device connected to a video output terminal according to the control of the controller and outputting the converted video file to the display device; An audio output unit configured to output an audio signal included in a moving image file to a speaker connected to the audio output terminal in synchronization with a video signal output through the video output unit under the control of the controller; When a memory card in which a script file and one or more video files including headers, scripts, and objects are stored is mounted in a memory card socket, an interface between the memory card and the controller is performed to execute a script file and a video stored in the memory card. And an auxiliary memory interface for outputting a file to the controller.

In addition, the multimedia playback apparatus according to the present invention performs an interface between a key input device such as a keyboard, a mouse, an electronic pen, and a touch pad connected to a multimedia player and a control unit to perform playback according to a user's key input. When playing a video file, it is preferable to further include a peripheral interface unit for outputting a key signal input by the user to the control unit.

In addition, the multimedia playback apparatus according to the present invention performs an interface between a wired / wireless communication device such as a wired / wireless modem or an infrared sensor connected to the multimedia player, and controls the wired / wireless communication device through a wired / wireless communication network. It is preferable to further include a serial communication interface for outputting the input script file and the video file to the control unit.

In addition, the multimedia playback method according to the present invention, (1) when the power is supplied according to the user's operation of the power key or reset key in the multimedia player, by loading the system kernel for memory management, processor management, system diagnostics to drive The process of preparation; (2) reading the script file input from the outside in the multimedia player after the system kernel is loaded to perform script file analysis such as the playback order, playback method, resolution, and sound function operation of each video file; (3) After analyzing the script file, the multimedia player performs property table analysis reading the video file input from the outside, and sets decoder properties according to the file format related to graphic playback based on the information stored in the header of the video file. Process; (4) performing data preprocessing by reading the compressed objects included in the moving image file and storing the compressed object included in the video file in a temporary file format after setting the attribute table and setting the decoder attribute; (5) controlling the playback of the video file based on the object stored in the form of a temporary file in the multimedia player, and outputting it through a display device and a speaker connected to the multimedia player.

Hereinafter, with reference to the accompanying drawings will be described in detail the multimedia playback device and playback method of the present invention.

1 is a block diagram schematically showing the configuration of a multimedia player according to the present invention, Figure 2 is a view for explaining an example of the use of the multimedia player according to the present invention.

As shown, the power supply unit 110 supplies power for the operation of each part of the multimedia player 100.

The control unit 120 reads the script file stored in the memory card 200 mounted in the multimedia player 100 so as to display each video file (eg, animation, advertisement, broadcast program, etc.) in a format such as Flash or MPEG. Analysis of the script file such as the playback order and playback method (for example, one-time play, repeat play, random or planned play), resolution, sound function, etc. After analyzing the file, set the decoder property according to the file format related to graphic playback by reading the header of the video file (in this header, the information such as the playing time, size, color, etc.) is recorded, and the video file according to the set decoder property To control the playback of the display device 300 and the speaker 400 connected to the multimedia player 100 to output .

On the other hand, the control unit 120, as described above, the drive program stored in the program memory 140 without analyzing the script file, such as the playback order and playback method, resolution, sound function operation of each video file, etc. The video file stored in the memory card 200 mounted on the multimedia player 100 or the video file input to the wired / wireless communication device 600 through the wired / wireless communication network may be sequentially played.

The data memory 130 serves as a temporary storage space when playing a video file under the control of the controller 120.

The program memory 140 stores a program for driving the multimedia player 100. When power is supplied from the power supply unit 110, the program memory 140 performs memory management, processor management, and system diagnosis under the control of the controller 120. The system kernel is loaded.

The video output unit 150 is adapted to the format (eg, LCD monitor, NTSC TV, etc.) of the display device 300 connected to the video output terminal under the control of the controller 120. After the reproduction and conversion, the display device 300 outputs the same to the display device 300.

The audio output unit 160 is a speaker 400 connected to the audio output terminal in synchronization with the video signal output through the video output unit 150 under the control of the control unit 120 and the video signal output through the video output unit 150. Output

The auxiliary memory device interface unit 170 may include a script file and a memory card 200 in which one or more video files including headers, scripts, and objects are stored in the memory card socket. And the controller 120 to output the script file and the video file stored in the memory card 200 to the controller 120.

The peripheral device interface 180 performs an interface between the key input device 500, such as a keyboard, a mouse, an electronic pen, and a touch pad, connected to the multimedia player 100, and the controller 120, and plays back according to a user's key input. When playing the interactive video file proceeding to output the key signal input by the user to the control unit 120.

The serial communication interface 190 performs an interface between the wired / wireless communication device 600 such as a wired / wireless modem or an infrared sensor connected to the multimedia player 100 and the control unit 120 through a wired / wireless communication network. The script file and the video file input to the wired / wireless communication device 600 are output to the control unit 120.

In this case, the above description has described that the memory card 200 stores one or more video files in a format such as a flash or an MPEG, but is not limited thereto. In addition, each video file in a format such as a flash or an MPEG is stored. Can be generated as a single file, in this case, the script file stored in the memory card 200 together with the video file generated as a single file is a playback order of individual videos included in the video file generated as a single file. And information on the reproduction method, the resolution, the operation of the sound function, and the like.

On the other hand, although not shown in the drawings of the present invention, the above-described multimedia player 100 further includes a motion sensor for detecting the movement of a person within a predetermined distance of the multimedia player (in this case, the external operation in the script file Information is stored to play the video file according to the detection), and when the motion detection sensor is driven, the controller 120 reads the script file stored in the memory card 200 and analyzes the read script file. In accordance with the present invention, the video file may be reproduced and output through the display device 300 and the speaker 400.

That is, when the multimedia playback apparatus according to the present invention is implemented for the purpose of performing an advertisement in a specific place outdoors, when the movement of the person is detected through the motion sensor, the motion is not activated when there is no movement of the person. The automatic operation is performed to read and analyze the script file stored in the memory card 200, and to play and output the video file through the display device 300 and the speaker 400 according to the analyzed content.

Next, an embodiment of the multimedia playback method according to the present invention configured as described above will be described in detail with reference to FIGS. 3 and 4.

First, referring to FIG. 3, which is a flowchart illustrating an operation of the multimedia playing method according to the present invention, the multimedia player 100 supplies power through the power supply unit 110 according to a user's power key or reset key operation. In operation S310, the controller 120 loads a system kernel for memory management, processor management, and system diagnosis.

After the system kernel is loaded according to the power on, the controller 120 of the multimedia player 100 receives a script input through the memory card 200 or the wired / wireless communication device 500 mounted on the multimedia player 100. By reading the file, a script file analysis such as a playback order, a reproduction method, a resolution, and a sound function of each video file is performed (S320).

After the analysis of the script file, the control unit 120 of the multimedia player 100 receives a video file stored in the memory card 200 or a video file input through the wired / wireless communication device 500 according to the analyzed result. A property table analysis is performed, and a decoder property according to a file format related to graphic reproduction is set based on information stored in a header of a video file (S330).

At this time, the control unit 120 of the above-described multimedia player 100, the process of performing the script file analysis, such as the playback order and playback method, resolution, sound function operation of each video file after the system kernel is loaded ( S320 may be omitted and the process of analyzing the attribute table and setting the decoder attribute may be directly performed (S330). That is, even if the script file is not analyzed, the video file stored in the memory card 200 or the video file input to the wired / wireless communication device 600 through the wired / wireless communication network can be reproduced.

After setting the property table analysis and the decoder property through the above-described process (S330), the control unit 120 of the multimedia player 100 reads the compressed objects included in the video file to form a temporary file according to a predetermined format. Data preprocessing stored in the data memory 130 is performed (S340).

Finally, the controller 120 of the multimedia player 100 controls the video output unit 150 and the audio output unit 160 to play the video file based on the object stored in the form of a temporary file. It outputs through the display device 300 and the speaker 400 connected to (S350).

Next, the above-described operation of FIG. 3 will be described in more detail with reference to FIG. 4, which shows a playback process using a flash file as an example.

The controller 120 of the multimedia player 100 prepares for driving by loading the system kernel when power is applied through the power supply 110 (S405).

Thereafter, after reading the script file input through the memory card 200 or the wired / wireless communication device 500 mounted in the multimedia player 100 (S410), the playback order of each video file is analyzed by analyzing the script file. And check the playback method, resolution, operation of the sound function, etc. (S415).

When the analysis of the script file is finished, the corresponding video file (flash file) is read (S420), and the header part of the flash file is read to analyze the attribute table (S425).

After analyzing the attribute table, the decoder property related to the graphic reproduction effect of the flash file among the parts read from the header of the flash file is set (S430), and the object in the compressed object DB of the flash file including the header, the flash script, and the compressed object DB Data preprocessing is performed in accordance with a predetermined format and stored in the form of a temporary file (S435).

Subsequently, by controlling the speed of the video for each frame, the screen update rate is controlled (by adjusting the speed through time delay as necessary) (S440), and the object required by the frame is analyzed and stored in a temporary file form. The screen object is generated by decompressing the compressed object (S445).

After generating the screen generation object list, a calculation is performed to call out the necessary object from the screen generation object list and sprinkle it on the screen using the video player, the vector graphic data generator, and the bitmap player on the driving program (S450 to S460). The attribute of the object is given by reading a script of the video file (S465).

Then, the unit screen is generated by integrating the data generated through the above-described processes (S445 to S460) (S465), the object is processed for the audio signal, and then output at the same time as the generated unit screen (S470).

As described above, according to the multimedia player and the playback method of the present invention, the LCD, TV, beam projector by automatically recognizing the format of various video files immediately after the user's simple power operation by playing the video file of the recognized format Output through display devices, etc., there is no need to install a separate operating system and playback software, stable operation even during continuous operation, no abnormality in the system even in the event of sudden power off, convenient installation and maintenance without technicians There is a repairable effect.

In addition, it can be easily installed and used in the style of a home game console, supports various display devices and key input devices, and can play and receive various video files by using a wired / wireless communication network.

In addition, the multimedia playback apparatus according to the present invention can be expanded to educational equipment for children, electronic bulletin boards, etc. to perform various advertisements, promotions, guidance, etc., and can be applied to game machines, information terminals, and electronic kiosks using interactive advantages. It has an effect.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

Claims (8)

A power supply unit supplying power for operation of each part of the multimedia player; By reading the script file stored in the memory card installed in the multimedia player, it analyzes the script file such as the playback order, playback method, resolution, and sound function of each video file in the format of Flash, MPEG, etc. After analyzing the script file, the header part of the video file is read to set decoder properties related to graphic playback, and the display device and speaker connected to the multimedia player are controlled by controlling the playback of the video file according to the set decoder property. A control unit for outputting through; A data memory serving as a temporary storage space when playing the video file under the control of the controller; A program memory configured to store a program for driving a multimedia player and to load a system kernel for memory management, processor management, and system diagnosis under the control of the controller when power is supplied from the power supply unit; A video output unit configured to play and convert the video file according to a format of a display device connected to a video output terminal according to the control of the controller and then output the video file to the display device; An audio output unit configured to output an audio signal included in the video file to a speaker connected to an audio output terminal in synchronization with a video signal output through the video output unit under the control of the controller; And When a memory card storing a script file and one or more video files including headers, scripts, objects, and the like is mounted in a memory card socket, an interface between the memory card and the controller is performed to execute a script stored in the memory card. And a secondary memory interface for outputting a file and a video file to the controller. The method of claim 1, A key input by a user when playing an interactive video file that is played back according to a user's key input by performing an interface between a key input device such as a keyboard, a mouse, an electronic pen, a touch pad, and the controller connected to the multimedia player. And a peripheral interface unit configured to output a signal to the controller. The method of claim 1, The script file and the video file input to the wired / wireless communication device through a wired / wireless communication network by performing an interface between the wired / wireless communication device such as a wired / wireless modem or an infrared sensor connected to the multimedia player and the controller. And a serial communication interface configured to output to a control unit. The method according to any one of claims 1 to 3, wherein each video file in the format of the flash, MPEG, etc. is generated as one file, In this case, the script file stored in the memory card together with the video file generated as a single file may play the sequence, the playback method, the resolution, and the sound function of the individual videos included in the video file generated as the single file. Multimedia playback apparatus characterized in that the information is recorded. The method of claim 1, Further comprising a motion sensor for detecting the movement of the person within a predetermined distance of the multimedia player, When the motion detection sensor is driven, the control unit reads the script file stored in the memory card and simultaneously plays a video file according to the analysis of the read script file and outputs it through a display device and a speaker. Multimedia player. A power supply unit supplying power for operation of each part of the multimedia player; Set the decoder property related to graphic playback by reading the header part of each video file stored in the memory card installed in the multimedia player, and control the playback of the video file according to the set decoder property to connect to the multimedia player A control unit for outputting through a display device and a speaker; A data memory serving as a temporary storage space when playing the video file under the control of the controller; A program memory configured to store a program for driving a multimedia player and to load a system kernel for memory management, processor management, and system diagnosis under the control of the controller when power is supplied from the power supply unit; A video output unit configured to play and convert the video file according to a format of a display device connected to a video output terminal according to the control of the controller and then output the video file to the display device; An audio output unit configured to output an audio signal included in the video file to a speaker connected to an audio output terminal in synchronization with a video signal output through the video output unit under the control of the controller; And When a memory card storing at least one video file including information such as a header, a script, an object, and the like is mounted in a memory card socket, an interface between the memory card and the controller is performed to control the video file stored in the memory card. Multimedia playback apparatus comprising a secondary memory interface unit for outputting. (1) if power is supplied according to a user's power key or reset key operation in the multimedia player, loading the system kernel for memory management, processor management, and system diagnosis to prepare for operation; (2) after the system kernel is loaded, reading the script file input from the outside in the multimedia player to perform script file analysis such as the playback order, playback method, resolution, and sound function of each video file; (3) After analyzing the script file, the multimedia player performs an attribute table analysis for reading a video file input from the outside and sets decoder properties according to the file format related to graphic playback based on the information stored in the header of the video file. Process of doing; (4) performing data preprocessing by reading the compressed objects included in the video file and storing the compressed object included in the video file in a temporary file format after analyzing the attribute table and setting the decoder property; And (5) controlling the reproduction of the video file based on the object stored in the form of a temporary file in the multimedia player, and outputting it through a display device and a speaker connected to the multimedia player. Way. (A) a step of loading a system kernel for memory management, processor management, and system diagnosis when the power is supplied according to a user's power key or reset key manipulation in the multimedia player, preparing for operation; (B) After the system kernel is loaded, the multimedia player performs a property table analysis for reading a video file input from the outside, and based on the information stored in the header of the video file, the decoder property according to the file format related to graphic playback is determined. Setting process; (C) performing data preprocessing by reading the compressed objects included in the video file and storing the compressed object included in the video file in a temporary file format after analyzing the attribute table and setting the decoder property; And (D) multimedia playback, comprising the step of controlling the playback of the video file on the basis of the object stored in the form of a temporary file in the multimedia playback device and output through the display device and the speaker connected to the multimedia playback device Way.

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