KR20040063296A - A/V program recording/reproducing apparatus having a function of delecting error file automatically and a method delecting error file - Google Patents

Abstract

PURPOSE: A video recording/reproducing device having a function for automatically deleting an error file is provided to decide whether user data is lost among program files, and to decide an error file, then to automatically delete the error file, thereby effectively obtaining a recording space of a recording device. CONSTITUTION: An HDD(Hard Disk Drive)(151) records user data and program files having video data which is encoded in predetermined format. A main controller(160) decides an error file among the recorded program files, and controls the HDD(151) to delete the decided error file. The main controller(160) includes an error decider(164). The error decider(164) decides whether the user data is lost among the program files, and decides the error file. The user data is information data on the program files, and includes one of title, freeze frame position information, time, length, and file name data.

Description

Image recording / playback device with error file auto deletion function and method for automatically deleting error file {A / V program recording / reproducing apparatus having a function of delecting error file automatically and a method delecting error file}

The present invention relates to an image recording / reproducing apparatus, and more particularly, to an image recording / reproducing apparatus capable of automatically deleting an unnecessary error file when using an image recording / reproducing apparatus, and a method for automatically deleting an error file. .

Recently, with the development of broadcasting technology, various image source signals such as satellite broadcasting signals, cable broadcasting, network broadcasting through the Internet, and the like are being developed.

Accordingly, although a recording medium such as a VCR is commonly used, there is a limitation in terms of capacity and editing to be used as a recording medium for recording various image source signals.

In order to overcome the limitations of the recording medium, an image recording / reproducing apparatus equipped with a recording apparatus, which is a large-capacity recording apparatus, is currently being developed.

The present invention has been made to solve the above problems, an object of the present invention, an image recording / reproducing apparatus capable of automatically deleting an error file stored unnecessarily in the recording apparatus when using the image recording / reproducing apparatus and accordingly It provides a method of deletion.

1 is a view showing a display system to which an image recording / reproducing apparatus according to the present invention is applied;

FIG. 2 is a schematic block diagram of the video recording / reproducing apparatus 100 of FIG. 1.

3 is a conceptual diagram illustrating a program file which is a moving picture file recorded on the hard disk drive 151 of FIG.

4 is a diagram illustrating a form displayed on a screen when a program list function is performed;

5 is a flowchart illustrating a method for automatically deleting an error file of a video recording / reproducing apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

110: input / output terminal 121: tuner

123: switching unit 125: input / output control unit

141: MPEG encoder 151: recording device

157: data management unit 159: disc player

160: main control unit 161: central processing unit (CPU)

164: Error Determination Unit 165: Flash Memory

167: SDRAM 171: light receiving unit

200: remote controller

An image recording / reproducing apparatus for recording and reproducing an audio / video signal received from the outside according to the present invention for achieving the above object includes recording of a program file having user data and image data encoded in a predetermined format. And a main control unit for controlling the recording device to delete the error file determined by determining an error file among the program files recorded in the recording device.

Preferably, the main controller includes an error determination unit that determines whether the error file is lost by determining whether the user data is missing from the program file.

The user data includes information data of at least one of a title, still picture position information, time, length, and file name as information data for the program file.

And an input unit for inputting a selection command for the operation of the video recording / reproducing apparatus, wherein when the power-on command of the video recording / reproducing apparatus is input through the input unit, the main controller records in the recording apparatus. The recording device is controlled to determine the error file among the programmed files and to delete the error file.

Preferably, when a power-off command of the video recording / reproducing apparatus is input through the input unit, the main controller determines the error file among the program files recorded in the recording apparatus and deletes the error file. To control the device.

Even more preferably, when a program list function execution command for externally displaying a list of the program file recorded in the recording apparatus is input through the input unit, the main controller is configured to execute the program list function recorded in the recording apparatus. The recording device is controlled to determine the error file and to delete the error file.

On the other hand, the operation method of the video recording / reproducing apparatus for recording and reproducing the video signal received from the outside according to the present invention, recording the program file having the user data and the video data encoded in a predetermined format to the recording device And deleting the determined error file by determining an error file among the program files recorded in the recording device.

The error file deleting step may further include determining the error file by determining whether the user data is missing from the program file.

According to the present invention, it is possible to efficiently secure the recording space of the recording apparatus by automatically deleting the error file recorded in the recording apparatus of the video recording / reproducing apparatus.

Hereinafter, an image recording / reproducing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a display system to which an image recording / reproducing apparatus according to the present invention is applied.

Referring to the figure, the video recording / reproducing apparatus 100 is connected to a television 300 as a display apparatus by means of a transmission cable 350.

The video recording / reproducing apparatus 100 processes a signal received from the remote controller 200 which is an external input device and transmits display information to the television 300. Here, the external input device may be applied to other input devices such as a wired keyboard as well as the remote controller 200 for transmitting a wireless signal such as infrared rays.

The video recording / reproducing apparatus 100 is configured to receive at least one video signal provided from a plurality of video sources. Examples of image sources may include other media capable of transmitting signals, such as terrestrial television broadcasts, satellite broadcasts, cable leads, computer lines or modem lines. That is, video such as cable, satellite dish, local cable, digital broadcast source (DBS), general antenna, internet, other computer sources, camcorders, disk players, set-top boxes, etc. The present invention described below is applied to a video recording / reproducing apparatus constructed to receive at least one or more of the sources.

The video recording / reproducing apparatus 100 also includes a mass storage device for storing video signals and the like. As a mass storage device, a hard disk drive (HDD) which is a recording device can be used.

A block diagram according to an embodiment of such an image recording / reproducing apparatus is shown in FIG. Referring to FIG. 2, the video recording / reproducing apparatus 100 includes an input / output terminal unit 110, a tuner 121, a switching unit 123, an input / output control unit 125, a video decoder 131, and an audio A. / D converter 133, video encoder 137, MPEG encoder 141, recording device (HDD) 151, data management unit 157, disc player 159, main controller 160, MPEG decoder ( 163, flash memory 169, light receiving unit 171, SDRAMs 143, 167, and the like.

Various external signals are input to the video recording / reproducing apparatus through the input / output terminal unit 110, and audio / video signals processed by the video recording / reproducing apparatus are output. The input / output terminal unit 110 includes a super video input terminal (S_V IN) 111 and an output terminal (S_V OUT) 112, an RF input terminal (RF IN) 113, and an output terminal (RF OUT) 114. , Line video / audio input terminals (LINE V_IN, LINE A_IN) 115, output terminals (LINE V_OUT, LINE A_OUT) 116, digital audio signal output terminals (SPDIF) (Serial Parallel Digital interface) 117, etc. are provided. have.

Super video input terminal (S_V IN) 111 and output terminal (S_V OUT) 112 are digitally separated luminance signals (Y) and color difference signals (Cr, Cb) from digital camcorders, DVD players, set-top boxes, and the like. ) Is received, and the received super video signal is output to the display apparatus after predetermined signal processing.

The RF input terminal (RF IN) 113 and the output terminal (RF OUT) 114 are typically connected to an antenna to receive an airwave broadcast signal, and the received airwave broadcast signal is output to the display device.

The line video / audio input terminals (LINE V_IN, LINE A_IN) 115 and output terminals (LINE V_OUT, LINE A_OUT) 116 are provided with luminance signals from camcorders, DVD players, set-top boxes, etc. that support the output of analog video signals. An analog signal in which Y) and the color signal C are mixed is received, and after a predetermined signal processing is performed in the image recording / reproducing apparatus 100, it is output to the display apparatus.

The digital audio output terminal 117 is a terminal for outputting the digital audio signal transmitted from the main controller 160 to the outside.

The tuner 121 adjusts a reception channel so that a broadcast signal of a channel requested by the input / output controller 125 controlled by the main controller 160 can be received through the RF input terminal 113.

The switching unit 123 selectively switches the signal input from the input / output terminal unit 110 and the output signal in response to the control of the input / output control unit 125.

The input / output controller 125 controls the input / output controller 125 with respect to the signal input from the input / output terminal unit 110 and the output signal under the control of the main controller 160.

The video decoder 131 is controlled by the main controller 160 to decode and output a video signal input through the super video input terminal 111 or the switching unit 123.

The audio A / D converter 133 converts an analog audio signal input through the switching unit 123 into a digital signal and outputs the digital signal to the MPEG encoder 141.

The audio D / A converter 135 converts the digital audio signal output from the MPEG decoder 163 of the main controller 160 into an analog audio signal and outputs the analog audio signal to the switching unit 123.

The video encoder 137 encodes a video signal output from the video decoder 131 or the MPEG decoder 163 and outputs the encoded video signal to the switching unit 123.

The MPEG encoder 141 is controlled by the main controller 160 to encode the audio signal output from the audio A / D converter 133 and the video signal output from the video decoder 131 by using a predetermined compression format. Preferably, the MPEG encoder 141 encodes by MPEG-2 compression.

The recording device 151 has a hard disk drive which is a general mass storage device, and is a program file which is a predetermined video file for various audio / video signals inputted from the input / output terminal unit 110, as shown in FIG. It is recorded in the form of a file as shown. Hereinafter, the recording device 151 will be referred to as a 'hard disk drive'.

The data management unit 157 manages the reproduction and recording of data recorded in the hard disk drive 151 and / or the disc player 159 under control of the main controller 160. That is, the data manager 157 manages the data to store the data recorded in the disc player 159 or the data encoded by the MPEG encoder 141 in the hard disk drive 151.

The disc player 159 is built in the video recording / reproducing apparatus and performs a recording / playback operation under the control of the main controller 160. The disc player 159 may be a DVD player for reproducing data recorded on a recording medium, for example, a digital versatile disk (DVD) and / or a compact disk (CD).

The light receiver 171 receives a user manipulation signal transmitted from the remote controller 200, which is an external input device, and provides it to the main controller 160.

The main controller 160 processes user manipulation commands received through the light receiver 171 and controls each component. The main controller 160 determines an error file among the central processing unit (CPU) 161, the MPEG decoder 163 for decoding the MPEG-compressed signal, and the program files recorded in the hard disk drive 151. It has an error determining unit 164. The main controller 160 controls the hard disk drive 151 to delete the error file determined by the error determining unit 164. Here, the CPU 161 and the MPEG decoder 163 are described as an example in which a single chip is provided, and of course, may be provided as a separate chip.

In the flash memory 165, various programs and data related to the performance of the main controller 160 are recorded. The flash memory 165 stores various application programs for performing various functions of the image recording / reproducing apparatus.

The SDRAM 143 is used as a memory used in the encoding process by the MPEG encoder 141, and the SDRAM 167 is used as a temporary buffer of the main controller 160.

3 is a conceptual diagram illustrating a program file which is a moving picture file recorded on the hard disk drive 151 according to the present invention. An error file automatic deletion function according to the present invention will be described with reference to FIG.

The program file 152 includes a header 152a, which is location information in which the program file 152 is recorded on the hard disk drive 151, user data 152b, which is file information of the program file 152, and The MPEG encoder 141 has GOP (Group of Pictures) data 152c which is a group of image data encoded by the MPEG encoder 141.

Preferably, in order to manage the program file 152, the hard disk drive 151 includes a user D / B 153 provided corresponding to the header 152a and the user data 152b, and GOP data encoded in an MPEG method ( Recorded separately.

The user D / B 153 includes location information (Source) of the still picture to indicate still picture information included when the program list is displayed. The user D / B 153 also includes a program title, file name, file reproduction length, and program Data for this recorded year / month / day / hour / minute / second is included. Therefore, when performing the program list function, the program list is displayed on the screen of the display apparatus using the user D / B 153 recorded on the hard disk drive 151 (shown in FIG. 4).

Hereinafter, a process of deleting an error file generated in the hard disk drive 151 according to the present invention will be described with reference to FIGS. 2 and 3.

For example, a process in which a predetermined channel broadcast signal selected as recording data is recorded on the hard disk drive 151 as the program file 152 shown in FIG. 2 is as follows.

First, when a recording command for recording a predetermined channel broadcast signal is input to the light receiver 171, the main controller 160 controls the input / output controller 125 to select a channel broadcast signal from the tuner 121. do. The switching unit 123 selects a channel broadcast signal received from the tuner 121 and processes the signal from the video decoder 131 and the audio A / D converter 133 and inputs the signal to the MPEG encoder 141. The MPEG encoder 141 encodes the signal processed broadcast signal to generate the GOP data 152c of the program file 152. In addition, user data 152b such as title, still picture position information, etc., for a channel broadcast signal, such as time, length, and file name, is generated. At this time, the generated user data 152b is temporarily stored in the SDRAM 167.

Thereafter, when recording of the channel broadcast signal is completed and a stop command is input from the light receiving unit 171, the main controller 160 uses the user data 152b temporarily recorded in the SDRAM 167 on the hard disk drive 151. Constructed by the D / B 153 and stored. Accordingly, in the hard disk drive 151, the user data 152b is constructed as the user D / B 153 at a predetermined assigned address 152a, and the program file 152 having the corresponding GOP data 152c. This is recorded.

However, when the recording is completed and before the stop command is input, that is, when a sudden accidental situation such as a power failure occurs and the power of the video recording / reproducing apparatus is turned off, the error file, which is an abnormal program file, becomes a hard disk drive ( 151). The generated error file prevents the user data 152b temporarily recorded in the SDRAM 167 from being recorded in the hard disk drive 151.

Therefore, the error determining unit 164 reads the user D / B 153 of the program file 152 recorded in the hard disk drive 151 by the main controller 160, and loses the user data 152b. Determine the error file by checking it. The main controller 160 controls the hard disk drive 151 to delete the error file determined by the error determining unit 164.

When the error file recorded on the hard disk drive 151 is deleted, for example, a function of displaying a list of programs recorded on the hard disk drive 151 or when the power is turned on or off in the video recording / reproducing apparatus is provided. It is automatically deleted when it is executed.

Hereinafter, a method of automatically deleting an error file of a video recording / reproducing apparatus according to the present invention will be described with reference to FIG.

When a program list function execution command is input from the light receiving unit 171, which is an input unit for inputting a user command, the main controller 160 reads the user D / B 153 among the program files recorded on the hard disk drive 151, and displays the display device. The program list as shown in FIG. 4 is displayed on the screen in the form of an electronic program guide (EPG). Reference numeral 410 in FIG. 4 denotes a still image of predetermined image data included in each program file, and reference numeral 430 denotes file information which is user data for each program file.

That is, when a program list function execution command is input from the light receiving unit 171 (S101), the main controller 160 reads the user D / B 153 of the program file recorded on the hard disk drive 151 (S103). ).

At this time, the error determination unit 164 checks the user data for the program file read from the main control unit 160 (S105).

As a result of checking, if the user data of the currently checked program file is lost (S107), the main controller 160 controls the hard disk drive 151 to delete the error file (S109).

On the other hand, if the user data is not lost in the normal program file, the error determining unit 164 checks the next program file read from the main control unit 160 (S105).

Preferably, a method of deleting an error file when the program list function is performed has been described as an example. However, when the power of the video recording / reproducing apparatus is turned on / off, the error file may be determined and automatically deleted. have.

As described above, when the video recording / reproducing apparatus is turned off due to an accidental situation such as a power failure while recording predetermined audio / video data on the recording apparatus, an error file generated in the recording apparatus is found and automatically deleted. Therefore, the recording space of the recording apparatus can be efficiently secured.

According to the present invention, by automatically deleting an error file recorded in the recording device of the video recording / reproducing device, it is possible to efficiently secure the recording space of the recording device.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (12)

An image recording / reproducing apparatus for recording and reproducing an audio / video signal received from an external device, A recording apparatus in which a program file having user data and video data encoded in a predetermined format is recorded; And And a main controller for controlling the recording device to delete the error file determined by determining an error file among the program files recorded in the recording device. The method of claim 1, The main control unit And an error determining unit determining the error file by determining whether the user data is lost in the program file. The method of claim 1, The user data, And at least one of information data of a title, still picture position information, time, length, and file name as the information data for the program file. The method of claim 1, And an input unit for inputting a selection command for the operation of the video recording / reproducing apparatus. When a power on command of the video recording / reproducing apparatus is input through the input unit, And the main controller controls the recording device to delete the error file by judging the error file among the program files recorded in the recording device. The method of claim 4, wherein When a power off command of the video recording / reproducing apparatus is input through the input unit, And the main controller controls the recording device to delete the error file by judging the error file among the program files recorded in the recording device. The method of claim 4, wherein When a program list function execution command for displaying a list of the program file recorded in the recording device to the outside is input through the input unit, And the main controller controls the recording device to delete the error file by judging the error file among the program files recorded in the recording device. In the error file deletion method of the video recording / reproducing apparatus for recording and playing the audio / video signal received from the outside, Recording a program file having user data and image data encoded in a predetermined format into a recording apparatus; And And deleting the error file determined by determining an error file among the program files recorded in the recording device. The method of claim 7, wherein The error file deleting step, And determining the error file by determining whether the user data is missing from the program file. The method of claim 7, wherein The user data, And information information on at least one of a title, still picture position information, time, length, and file name as information data for the program file. The method of claim 7, wherein And an input step of inputting a selection command for the operation of the video recording / reproducing apparatus. And deleting the error file when the power on command of the video recording / reproducing apparatus is input to the input step. The method of claim 10, And deleting the error file when the power-off command of the video recording / reproducing apparatus is input to the input step. The method of claim 10, If the program list function execution command for displaying the list of the program files recorded in the recording device to the outside is input to the input step, the error file deleting step is performed. How to delete a file.