KR100837168B1 - Method for controlling file reproducing in digital device - Google Patents

Abstract

A method of controlling file reproduction in a digital device is provided to allow a user to update file extension of a specific file and selectively reproduce the file only if a password is valid, thereby preventing undesired reproduction of the file in other digital devices. A method of controlling file reproduction in a digital device comprises the steps of: outputting an OSD(On Screen Display) screen to change file extension stored in a storage within the digital device(S11); updating the extension of the file as required through the OSD screen, and storing the updated extension in a lookup table in association with the previous extension(S12,S13,S14); when reproduction of the file with updated extension is requested, searching for the lookup table to identify the previous extension of the file, checking whether a password is valid, and executing a reproduction program corresponding to the extension(S15,S16,S18,S19,S20).

Description

{Method for controlling file reproducing in digital device}

1 illustrates a configuration of a general digital device,

2 illustrates an embodiment of an OSD screen output and displayed according to the present invention.

3 illustrates an embodiment of lookup table information stored and managed according to the present invention;

4 is a flowchart illustrating a method for controlling file reproduction in a digital device according to the present invention;

5 illustrates an embodiment of an error message output displayed according to the present invention.

※ Explanation of code for main part of drawing

10: DVD 11: optical pickup

12: DVD system 13: Hard disk

14: Hard Disk System 15: A / V Processor

16: microcomputer 17: OSD generation unit

18: memory

The present invention relates to a method for controlling file reproduction in a digital device. For example, in various types of digital devices such as a disc recorder or a disc player, a file reproduction operation is performed by arbitrarily changing the extension of a file stored in the storage. The present invention relates to a file reproduction control method in a digital device for efficiently controlling the data.

Generally, a digital device such as a disc recorder or a disc player capable of playing various types of files stored in a storage such as a DVD or a hard disk (HDD), for example, as shown in FIG. ), Optical pickup 11, DVD system 12, hard disk 13, hard disk system 14, A / V processor 15, microcomputer 16, OSD generation unit 17, and memory 18, etc. are comprised.

On the other hand, when the microcomputer 16 plays back any file stored in the DVD 10 or the hard disk 13 at the request of the user, the DVD system 12 or the hard disk system. Operation 14 is checked to confirm the extension of the file.

In addition, a playback program corresponding to the extension of the checked file is selected and executed. For example, if the extension of the checked file is 'avi', after determining that the file is a Divx file, the corresponding Divix file is determined. Select and run the playback program.

On the other hand, if the extension of the checked file is 'mpg', it is determined that it is an MPEG video file, and then a corresponding amplifier play program is selected and executed. If the checked file has an extension of 'wmv', After determining that the file is a Windows Media Player file, a corresponding Windows Media Player player program is selected and executed.

However, in a general digital device, since the extension of the file requested to be played by the user is checked as described above, a corresponding playback program is selected and executed, so that a specific file, for example, that the user does not want to be played through another digital device, for example. For example, there is a problem in that an adult video file requiring a parental lock cannot be arbitrarily played by another digital device.

Accordingly, the present invention was created to solve the above problems, and for example, the user arbitrarily changes the extension of a file stored in a storage such as a DVD or a hard disk, and the extension after the change. And store the extension before the change as a lookup table in a digital device, and then, when the file reproduction request is made with the extension changed, search the lookup table to recognize the extension before the change. By executing a playback program corresponding to the extension, there is provided a file playback control method in a digital device for preventing certain files, such as adult video files, from being arbitrarily played back by another digital device. It is.

According to an aspect of the present invention, there is provided a method of controlling a file reproduction in a digital device, the method including: outputting an OSD screen for changing an extension of a file stored in storage in a digital device; Updating the file with an extension requested to be arbitrarily changed through the OS screen, associating the extension after the change with the extension before the change, and storing the file as a lookup table; And 3 steps of retrieving the lookup table, recognizing the extension before the change, and executing a reproduction program corresponding to the extension when requesting to play the file whose extension has been changed.

The digital apparatus is a disc recorder or a disc player, and the OS screen includes a name and an extension of an original file and input fields of an extension to be arbitrarily changed. The lookup table includes an extension and a change after the change. In addition to storing the previous extension, the lookup table is stored in a nonvolatile memory in the digital device.

In addition, in step 3, when the file reproduction request of the extension is changed, the lookup table is searched to recognize the extension before the change, and according to whether a valid password is set in advance, a reproduction program corresponding to the extension is performed. In step 2, the step of determining the validity of the extension requested to be arbitrarily changed through the OS screen, updating the file, and associating the extension after the change with the extension before the change. And store it as a lookup table.

In addition, the validity determination of the extension requested to change, if a change to the same extension as the extension after the change already stored in the lookup table is requested, the extension before the change stored in association with the extension, and the original of the file to be changed now After comparing whether the extension is the same, it is determined that the extension is valid, and if the extension is not the same, the extension is changed. If not, the extension is determined to be invalid and an error message is output.

Hereinafter, a preferred embodiment of a file reproduction control method in a digital device according to the present invention will be described in detail with reference to the accompanying drawings.

First, the file reproduction control method according to the present invention can be applied to various types of digital devices such as a disc recorder or a disc player, which are configured as described above with reference to FIG. 1, for example. ), If the file extension change mode is set according to a user's request, the OSD generation unit 17 is controlled to display an OSD screen capable of a user interface.

On the other hand, as shown in FIG. 2, for example, 'AAAA.avi' is displayed on the OS screen as the name and extension of the original file selected by the user, and the file name and extension that the user wants to change arbitrarily. For example, a user input field for inputting 'AAAA.111' is displayed.

In addition, in the microcomputer 16, when a file extension change is requested by a user, the file extension of 'AAAA.avi' is changed to 'AAAA.111' arbitrarily input through the user input field. As shown in FIG. 3, the extension after the change (eg, 111) and the extension before the change (eg, avi) are linked to each other, and stored and managed as lookup table information.

Meanwhile, the lookup table information may be stored and managed in a nonvolatile memory 18 such as, for example, a flash memory or an EEPROM, and may also be modified by various users (eg, 111, 222, and the like). 333 ...) are stored in association with the original extensions (e.g. avi, mpg, wmv ...) before each change.

In response to a user's request, the microcomputer 16 retrieves the lookup table information, recognizes the original extension before the change, and plays the file corresponding to the extension. Select program is executed, which will be described in detail below.

4 is a flowchart illustrating a method for controlling file reproduction in a digital device according to the present invention. For example, in the microcomputer 16 of the digital device configured as described above with reference to FIG. In response to the request, when the file extension change mode is set (S10), the OSD generator 17 is controlled to output an OSD screen for changing the file extension (S11).

When a change to an arbitrary extension inputted through the OS screen is requested (S12), for example, as described above with reference to FIG. 2, the original file name and extension are 'AAAA.avi' If the file name and extension to be changed by the user is 'AAAA.111', the microcomputer 16 searches and looks up the lookup table information stored in the memory 18 to determine whether it is a valid extension that can be changed. After that, the file information is updated.

For example, if the extension '111' after the change and the extension 'avi' before the change are not already stored in the lookup table, the microcomputer 16 sets the original file information in 'AAAA.avi' to ' The change is updated to AAAA.111 '(S13), and the extension' 111 'after the change and the extension' avi 'before the change are stored in the lookup table (S14).

On the other hand, as shown in FIG. 5, the extension '111' after the change and the extension 'avi' before the change are associated and stored in the lookup table information, and the extension '222' after the change and the extension before the change. When the user requests to change the 'avi' extension to '222' while 'mpg' is stored in association, the microcomputer 16 determines that the extension change is not valid.

That is, when 'avi' is changed to '222', a duplicate error occurs between 'mpg' and '222' and 'avi' and '111', which are already stored in the lookup table. 17), an error message is outputted and displayed. For example, in the error message, the extension '222' to be changed is already set to the 'mpg' extension along with the error indication, and 'avi' May be displayed including a guide message indicating that the setting is changed to '111'.

On the other hand, if the user requests to play any file after the file extension change and the lookup table management operation is performed (S15), the microcomputer 16 plays a request for playback. The extension of the file is checked to determine whether the file has been changed.

If the result of the determination is not a file whose extension is changed (S16), a playback program corresponding to the extension of the file is selected and executed to perform a normal playback operation (S17). In operation S18, the lookup table information is searched and referred to to recognize the extension before the change.

For example, if the name and extension of the file requested by the user are 'AAAA.111', the microcomputer 16 searches for the lookup table information stored in the memory 18 and stores the associated information in association with '111'. The file extension is recognized as 'avi' (S19). After that, the OSD generation unit 17 is controlled to output an OSD screen requesting input of a preset password.

In addition, when the user inputs a valid password through the OS screen (S19), the microcomputer 16 plays a program corresponding to the extension 'avi' recognized by referring to the lookup table, for example, Divix. (Divix) A playback program is selected and executed (S20) so that a normal file playback operation is performed.

For reference, the lookup table information is stored and managed in a memory in a digital device, and an extension of a file stored in a storage such as the DVD or a hard disk is changed to an extension set by the user. When the file is copied to another digital device and played back, extension recognition is not possible on the other digital device, and thus the normal playback operation is not performed.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The file playback control method in the digital device according to the present invention made as described above, for example, in a digital device such as a disc recorder or a disc player, the extension of the file stored in the storage (Storage) such as a DVD or a hard disk, And arbitrarily change and associate and store the extension after the change and the extension before the change as a lookup table in a digital device. Then, when the extension requests to play the changed file, the lookup table is searched. By recognizing the extension before the change, and executing a playback program corresponding to the extension, a particular file that the user does not want to play through another digital device, e.g. adult lock-in, is required. It is efficient that video files etc. are randomly played back by other digital devices. It is a very useful invention that can be prevented.

Claims (10)

Outputting an OS screen for changing an extension of a file stored in storage in the digital device; Updating the file with an extension requested to be arbitrarily changed through the OS screen, associating the extension after the change with the extension before the change, and storing the file as a lookup table; And In response to the file playback request of the extension is changed, the step of retrieving the look-up table, and after recognizing the extension before the change, and executing the playback program corresponding to the extension, characterized in that the digital device How to control file playback. The method of claim 1, The digital device is a disc recorder or a disc player, and the OS screen displays a name and extension of an original file and input fields of an extension to be arbitrarily changed. The method of claim 1, And the extension after the change and the extension before the change are cooperatively stored in the lookup table, and the lookup table is stored in a nonvolatile memory in the digital device. The method of claim 1, In step 3, when the file extension is requested to be played, the lookup table is searched to recognize the extension before the change, and according to whether a valid password is set in advance, execution of a playback program corresponding to the extension is performed. And selectively executing the file playback control method in the digital device. The method of claim 1, In the second step, after determining the validity of the extension requested to be arbitrarily changed through the OS screen, updating the file, associating the extension after the change and the extension before the change, and storing the extension as a lookup table File playback control method in a digital device characterized in that. The method of claim 5, The validity of the requested extension is determined that if a change to the same extension as the extension after the change already stored in the lookup table is requested, the extension before the change stored in association with the extension and the original extension of the file to be changed currently are changed. And comparing the same items, determining that they are valid, and performing an extension change operation. The method of claim 5, The validity of the requested extension is determined that if a change to the same extension as the extension after the change already stored in the lookup table is requested, the extension before the change stored in association with the extension and the original extension of the file to be changed currently are changed. And comparing the same, if not identical, determining that it is not valid, and outputting an error message. The method of claim 7, wherein And a valid extension that can be changed is included in the error message. Requesting playback of a file whose extension has been changed; In response to the reproduction request, requesting and receiving an input of a password; And And reproducing the file by changing the extension by referring to the lookup table if the received password is valid. The method of claim 9, In the step 3, if the received password is valid, the searched lookup table in the device is searched to recognize the extension of the requested file as the original extension before the change, and then the file is played. File playback control method in digital device.

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