KR20060033201A - Method and apparatus for processing (a) data of (an) image display device having (a) storage function - Google Patents

Abstract

The present invention relates to a data processing apparatus and method of an image display device having a storage function for retrieving stored data more stably by storing a plurality of index information in the image display device having a storage function. .

That is, when the index information stored in the first storage unit HDD is changed, the index information can be temporarily stored again without being deleted immediately, and temporarily stored when the index information has a problem. This is to restore the index information.

Therefore, the present invention can detect when the index information is changed in the first storage unit (HDD) and back up the index information in a separate second storage unit, thereby minimizing the information corruption rate. In addition, when the index information stored in the first storage unit (HDD) is damaged, the damaged information can be restored by using the index information stored in the second storage unit, thereby improving the stability of the data and the user. It has the effect of improving the reliability of the product.

Index

Description

Data processing apparatus and method for an image display apparatus having a storage function {a method and apparatus for processing (a) data of (an) image display device having (a) storage function}

1 is a block diagram showing the configuration of a data processing apparatus of an image display apparatus having a storage function according to the present invention;

2 and 3 are flowcharts illustrating a data processing method of an image display apparatus having a storage function according to the present invention;

<Description of Symbols for Main Parts of Drawings>

100: tuner 200: demux

300: image signal processing unit 400: display unit

500: key input unit 600: control unit

700: first storage unit 800: second storage unit

The present invention relates to an image display device, and more particularly, to an image display device having a storage function for retrieving stored data more stably by storing a plurality of index information in an image display device having a storage function. A data processing apparatus and method.

In general, a video display device includes a TV, and such a TV tunes and demodulates a broadcast signal according to a channel selected by a user from among broadcast signals transmitted from a broadcasting station, and separates it into audio and video, and then processes the screen through corresponding audio and video processing. And a video device output through a speaker.

In recent years, such a video display device has been developed with the development of TV technology, and thus, a method of transmitting broadcast signals has been developed, and accordingly, interest in a digital TV using a digital transmission method has increased.

Also, in Korea, Mugunghwa satellite was launched in August 1995 and began digital test broadcasting in July 1996. Unlike conventional satellite broadcasting, Mugunghwa satellite broadcasting is scheduled to be SDTV-class digital broadcasting. It's almost no different from broadcasting.

The digital TV has a function of storing a video in real time using a personal video recorder (PVR) while the user is watching a broadcast, and playing it at a desired time. In addition, it can be used for recording meetings when conducting video conference using digital TV.

In general, a PVR system is a personal digital video recording device for recording and playing back information on a hard disk. The PVR system is a new concept of digital recording device that records and plays back information on a hard disk, unlike a VCR that stores video signals on a magnetic tape. It is a next-generation recording device that can record a certain amount of broadcast programs depending on the capacity without a VCR through the hard disk drive built into the set-top box or television body.

That is, the PVR system uses the CPU and video to convert digital broadcast data (Europe: DVB, Korea / Japan / North America: ATSC) and analog broadcast data (Europe; PAL, Korea / Japan / North America: NTSC) from the TV system. The system converts the digital signal through a signal processor, converts the digital signal data in the memory device inside the system, stores the digital signal data, converts the digital signal data, and reproduces the same at a time or a method desired by a user through a display device or a screen.

The internal functions include the scheduled recording of broadcast programs, the time shift method, etc., and the hard disk (HDD) is used as the storage space used in the PVR built-in TV system. The broadcast data can be played for 3 hours in HD and 2 hours in SD.

In such a PVR system, when data is stored in a hard disk (HDD), index data is stored in a predetermined area of the hard disk (HDD) in order to search for a storage location more easily.

However, when the index stored in the hard disk HDD is damaged, when the user tries to find the desired data, the data is actually stored according to the damage of the index, but the user indicates that there is no data. There was a problem that the user can not search for the desired data.

It is an object of the present invention to temporarily store the index information when the index information is changed in the HDD.

In addition, there is another purpose to improve the stability of the data stored in the hard disk (HDD).

A data processing apparatus of a video display device having a storage function according to the present invention for achieving the above object is to input a user's request command in an image display device having a tuner, a demux, and a first storage unit (HDD). A second input unit for temporarily storing index information according to an index change stored in the first storage unit (HDD), an index stored in the first storage unit ( Index) Index information stored in the first storage unit to the second storage unit in accordance with the information change and error occurrence, or index stored in the first storage unit through the index information stored in the second storage unit (Index) is configured to include a control unit for controlling to restore the information is characterized by.

Preferably, the second storage unit is a nonvolatile memory.                     

The data processing method of the image display device having a storage function according to the present invention for achieving the above object is a data processing method of the image display device having a first and second storage unit, the image desired by the user in the first storage unit And storing index information, detecting whether the stored index information is changed, controlling backup of the corresponding index information, and index stored in the first storage unit. And detecting the error information in the information, and controlling the corresponding index information to be restored from the second storage unit.

Preferably, the controlling of the backup of the index information may include detecting a change of index information stored in the first storage unit, and if the change of the index information is detected, the first information may be detected. Copying and storing index information previously stored in a storage unit is characterized in that the second storage unit.

More preferably, the step of controlling the data to be restored from the second storage unit may include determining whether an error occurs in the index information stored in the first storage unit, and an error occurs in the index information. Determining whether the corresponding index information exists in the information stored in the second storage unit, and copying the corresponding index information to the first storage unit when the corresponding index information exists in the second storage unit. It is characterized by building.

Hereinafter, a data processing apparatus and method of an image display device having a storage function according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a data processing apparatus of an image display apparatus having a storage function according to the present invention, and FIGS. 2 and 3 are flowcharts illustrating a data processing method of an image display apparatus having a storage function according to the present invention. .

As shown in FIG. 1, a data processing apparatus of an image display device having a storage function according to the present invention includes a tuner 100 for tuning a broadcast signal received through an antenna, and tuned through the tuner 100. Demux 200 for separating the image, audio and additional information from the broadcast signal, the image for receiving the image signal separated through the demux 200 and the image for processing into a displayable signal through the display unit 400 A signal processor 300, a first storage unit 700 for storing image and index information desired by a user, a key input unit 500 for inputting a user request command, and the key input unit 500 The control unit outputs a corresponding control command according to a command input through the control unit, and detects a change state and an error state of index information stored in the first storage unit 700 and controls a backup and restore. 600), The second storage unit 800 is configured to temporarily store index information stored in the first storage unit 700 according to the control signal of the controller 600.

In this case, the first storage unit 700 is composed of an HDD, and the second storage unit 800 is composed of a nonvolatile memory such as a flash ROM.

The operation of the data processing apparatus of the image display device according to the present invention configured as described above is as follows.                     

When a power-on command is input through the key input unit 500, the user receives a broadcast signal desired by the user, passes through the video signal processing unit 300, and displays the same through the display unit 400.

In addition, when a user wants to store a desired image, an image signal received through the tuner 100 or an image input through an external device (not shown) is input according to a user's request input through the key input unit 500. The first storage unit 700 may be stored in the first storage unit 700, and at this time, index information may be simultaneously stored in order to search for an image stored in the first storage unit 700 more easily.

In addition, the controller 600 determines the state of the index information stored in the first storage unit 700, and when there is an index change, the index stored in the first storage unit 700. (Index) information is copied to the second storage unit 800.

Subsequently, as the error of the index information stored in the first storage unit 700 is detected, it is determined whether the corresponding index information is backed up in the second storage unit 800 when an error occurs. The index in which an error occurs is restored using index information stored in the second storage unit 800.

In addition, when reproducing an image stored in the first storage unit 700, a desired image may be searched and reproduced using pre-stored index information.

The data processing method of the image display device having the storage function according to the present invention configured as described above is largely composed of a method of backing up an index and a method of restoring an index.

In this case, a method of backing up the index will be described with reference to FIG. 2. First, when a user inputs a power-on command, the index stored in the first storage unit 700 is searched (S101 to S102). ).

If there is an index changed from the searched index, the index information stored in the first storage unit 700 is copied to the second storage unit 800 (S103 to S104).

Subsequently, if the user inputs the power-off command, the process ends. If no user inputs the power-off command, the steps S102 to S104 are repeated (S105).

In addition, the method of restoring the index will be described with reference to FIG. 3. First, when a user inputs a power-on command, the index information stored in the first storage unit 700 is searched (S201 to S). S202).

In operation S203, it is determined whether a problem occurs in the searched index information.

Subsequently, when a problem occurs in the index information (S203), it is determined whether the corresponding index information exists in the second storage unit 800 (S204).

As a result of the determination (S204), if the corresponding index information exists in the second storage unit 800, the index information stored in the second storage unit 800 is transferred to the first storage unit 700. Copy (S205).                     

If the user inputs the power-off command, the process ends. If no user inputs the power-off command, the steps S202 to S205 are repeated (S206).

As described above, an apparatus and method for processing data of an image display apparatus having a storage function according to the present invention store image and index information desired by a user in a first storage unit, and the index stored in the first storage unit. Index) When the change of information is detected, it is possible to temporarily store not only the first storage unit but also a separate second storage unit, and to restore the index information stored in the second storage unit again when a problem occurs later. .

As described above, the data processing apparatus and method of the image display device having the storage function according to the present invention have the following effects.

First, when the index information is changed in the first storage unit, the index information may be detected and backed up in the second storage unit to minimize the information corruption rate.

Second, when the index information stored in the first storage unit is damaged, the information may be restored using the index information stored in the second storage unit.

Third, the reliability of the product can be improved by minimizing and restoring the damage rate of information.

Claims (5)

In an image display device having a tuner, a demux and a first storage unit (HDD), A key input unit for inputting a user's request command; A second storage unit for temporarily storing index information according to an index change stored in the first storage unit HDD; And, According to the change of the index information stored in the first storage unit and the occurrence of an error, the index information stored in the first storage unit is backed up to the second storage unit or the index stored in the second storage unit. And a control unit for controlling the restoration of the index information of the first storage unit using the information. The method of claim 1, And the second storage unit is a nonvolatile memory. In the data processing method of the image display device having a first and a second storage unit, Storing image and index information desired by a user in the first storage unit; Detecting whether the stored index information is changed and controlling a backup of the corresponding index information; And, Detecting information in which an error has occurred among the index information stored in the first storage unit, and controlling the corresponding index information to be restored from the second storage unit. Data processing method of a video display device having a storage function. The method of claim 3, wherein The step of controlling the backup of the index (Index) information Detecting the change of the index information stored in the first storage unit, and if the change of the index information is detected, storing the index information previously stored in the first storage unit in the second storage unit; And copying and storing the data in a copy unit. The method of claim 3, wherein If an error occurs in the index information stored in the first storage unit, the controlling of the index information may be restored from the second storage unit. Determining whether an error occurs in the index information stored in the first storage unit; and when the error occurs in the index information, corresponding index information in the information stored in the second storage unit. And determining whether or not there is a corresponding information, and copying the corresponding index information to the first storage unit if the corresponding index information exists in the second storage unit. Way.

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