KR100692974B1 - Video and audio data recording/reproducing apparatus having the function of lock setting and control method thereof - Google Patents

Abstract

Disclosed are a video and audio recording / reproducing apparatus having a lock setting function and a control method thereof. An image and sound recording / reproducing apparatus capable of recording an image / audio file received from the outside according to the present invention into a storage device, and reproducing the recorded image / sound file and outputting the image / sound file to an external display device includes an image and sound recording / When a signal for lock setting is received from the external input device and the external input device to which the function selection signal of the playback device is input, the lock setting list screen for lock setting is displayed on the external display device, and And a main control unit for setting lock setting information for preventing overwriting of a recording target video / sound file in a region in which a selected video / audio file is recorded among predetermined video / audio files. As a result, it is possible to prevent the loss of important files by deleting the pre-stored program file due to insufficient storage capacity of the storage device and skipping the video / audio file in which the lock is set when the new program file is overwritten.

HDD, lock, overwrite, recording capacity

Description

Video and audio recording / reproducing apparatus having the lock setting function and control method thereof

1 is a view showing a display system to which an image and sound recording / reproducing apparatus having a lock setting function according to the present invention is applied;

FIG. 2 is a block diagram of the video and audio recording / reproducing apparatus of FIG. 1;

3 is a diagram illustrating an example of partitioning a storage space of the HDD of FIG. 2;

FIG. 4 is a diagram illustrating a lock setting list screen displayed on a display apparatus when a lock setting request signal is received through the light receiver shown in FIG. 2;

FIG. 5 is a diagram illustrating a password menu screen displayed when a lock setting signal for one file of the program file list shown in FIG. 4 is selected;

FIG. 6 is a flowchart illustrating a control method of a video and audio recording / reproducing apparatus having a lock setting function shown in FIG. 2.

Explanation of symbols on the main parts of the drawings

100: video and sound recording / playback device 110: input / output terminal

125: input / output control unit 141: MPEG encoder

151: HDD 160: main control unit

300: TV 400: lock setting list screen

500: Password menu screen

The present invention relates to a video and audio recording / reproducing apparatus having a lock setting function and a method of controlling the same. More particularly, the present invention relates to a video / audio file recorded in a storage device, and that the capacity of the storage device is increased. The present invention relates to a video and audio recording / reproducing apparatus having a lock setting function capable of preventing the loss of important files when overwriting a recording target file in an insufficiently used memory area, and a control method thereof.

Video and audio recording / reproducing apparatus capable of reproducing a broadcast signal recorded on a recording medium and reproducing the broadcast signal has been expanded in accordance with advances in technology for digitizing and compressing broadcast signals. Such video and audio recording / reproducing apparatuses are being developed to support the use of various video sources such as satellite broadcasting signals, cable broadcasting, and network broadcasting through the Internet. In order to record video / audio signals transmitted from various video sources as described above, recent video and audio recording / reproducing apparatuses employ hard disk drives, which are large-capacity storage devices.

The hard disk drive is an auxiliary storage device which is widely used recently because random access, which is a method of directly accessing desired data using an address, fast data transfer speed, and a large amount of information can be recorded.

Such a hard disk drive is configured to have a cluster structure used in a PC. In terms of PC storage technology, clusters are logical units that store files on hard disk drives and are managed by the computer's operating system. When a file is stored on a hard disk, it occupies at least one cluster. A very large file can span multiple clusters.

As described above, when a file is divided into multiple clusters and recorded, the clusters do not necessarily have to be contiguous and may be divided into multiple clusters. In this case, the positions of several clusters associated with one file are managed by a file allocation table (FAT) recorded in a predetermined area of the hard disk drive. That is, the FAT stores information on which cluster of the hard disk drive, clusters in which order the clusters are connected to form a file, and cluster status information.

In the video and sound recording / reproducing apparatus employing the above-described storage device, the video and sound files supported from various video sources can be easily recorded and managed.

In the conventional video and audio recording / reproducing apparatus, when recording a file to be recorded on a hard disk drive as a storage device, the recording capacity of the hard disk drive is compared with the capacity of the file to be recorded to determine whether the recording capacity of the hard disk drive is exceeded. To judge. If it is determined that the recording capacity of the hard disk drive is exceeded, the video and audio recording / reproducing apparatus judges whether an overwrite function for overwriting a recording target file is set in the used recording area. If the overwrite function is not set, the video and audio recording / reproducing apparatus outputs an error message indicating that the recording area cannot be recorded because the recording area is insufficient.

On the other hand, when the overwrite function is set, the recording target video / audio files are sequentially overwritten in a predetermined order. At this time, the recording target file is sequentially overwritten in the recording area of the hard disk drive according to a first in first out (FIFO) or last in first out (LIFO) method.

As described above, in the conventional video and audio recording / reproducing apparatus, when the recording capacity is insufficient by using all the recording areas of the hard disk drive, if the overwrite function is set, the recording target file is sequentially overwritten to the used recording area automatically. This can lead to the loss of important files. That is, a problem may occur in which files not desired by the user may be deleted.

The technical problem to be solved by the present invention is to set a lock on a predetermined program file recorded in the storage device, the image having a lock setting function that can protect the program file set the lock when overwriting due to insufficient recording capacity of the storage device And a sound recording / reproducing apparatus and a control method thereof.

In order to solve the above technical problem, an image and sound recording capable of recording an image / audio file received from the outside according to the present invention to a storage device, and reproducing the recorded image / sound file to output to an external display device. When the signal for lock setting is received from the external input device and the external input device to which the function selection signal of the video and audio recording / reproducing device is input, the / playback device displays the lock setting list screen for setting the lock. Lock setting information displayed on a display device to prevent the recording target image / volume file from being overwritten in a region in which a selected image / sound file is recorded among the predetermined image / sound files listed on the lock setting list screen. It is provided with the main control part to set.

The lock setting information is recorded in an area in which additional information about the video / audio file recorded in the storage device is recorded.

On the other hand, the main controller checks the recording capacity remaining in the storage device when the recording request signal for recording the recording target video / audio file into the storage device is received from the external input device, and the recording capacity is recorded. If the size of the target video / audio file is less than or equal to the capacity of the target video / audio file, the recording target video / audio file is sequentially overwritten to an area except for the region where the video / audio file in which the lock setting information is set is stored.

Furthermore, the storage device is a hard disk drive.

In addition, the lock setting list screen displays a lock setting item for setting the lock setting on the video / audio file list recorded in the storage device and the list.

On the other hand, in order to solve the technical problem as described above, the image / sound file received from the outside according to the present invention can be recorded in the storage device, the recorded image / sound file can be reproduced and output to the external display device The control method of the video and audio recording / reproducing apparatus, when a lock setting request signal for setting a lock on at least one video / audio file among the video / audio files recorded in the storage device is received, locks for the lock setting. Displaying a setting list screen on the external display apparatus and overwriting a recording target image / sound file in a region in which a selected image / sound file among the predetermined image / sound files listed in the lock setting list screen is recorded; And setting lock setting information for preventing the lock setting information.

Preferably, when a recording request signal for recording the recording target video / audio file into the storage device is received, checking the recording capacity remaining in the storage device, and the recording capacity remaining in the storage device is determined. Determining whether the recording mode of the storage device is the overwrite mode if it is determined that the recording target video / audio file is smaller than the capacity; and if the recording mode is the overwrite mode, the recording target video / audio file And sequentially overwriting an area excluding an area in which the locked video / audio file is stored.

The lock setting information is recorded in an area in which additional information about the video / audio file recorded in the data area of the storage device is recorded.

The lock setting list screen displays a lock setting item for selecting whether to set the lock on the video / audio file list recorded in the storage device and the list.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a view schematically showing a display system to which an image and sound recording / reproducing apparatus having a lock setting function according to the present invention is applied.

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

The image and sound 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 and sound recording / reproducing apparatus 100 is constructed to receive at least one video and audio signal provided from a plurality of video and sound 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.

A block diagram according to an embodiment of such an image and sound recording / reproducing apparatus is shown in FIG. 2.

2, the video and audio recording / reproducing apparatus 100 includes an input / output terminal unit 110, a tuner 121, a switching unit 123, an input / output control unit 125, an MPEG encoder 141, A hard disk drive (HDD) 151, a disk loading unit 155, and a main controller 160 are provided.

The input / output terminal unit 110 is configured to receive signals generated from various video signal sources and output signals received from the HDD 151 applied to the received signal or the mass storage device.

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. , A line video / audio input terminal (LINE V_IN, LINE A_IN) 115, an output terminal (LINE V_OUT, LINE A_OUT) 116, and a digital audio signal output terminal (SPDIF: Serial Parallel Digital interface) 117. .

The super video input terminal 111 is a terminal for receiving the digital luminance signal Y and the color difference signals Cr and Cb, which are connected to a digital camcorder, a DVD player, and a set-top box.

The super video output terminal 112 is a terminal for transmitting the digital luminance signal Y and the color difference signals Cr and Cb to the television 300.

The RF input terminal 113 is a terminal for receiving an over-the-air broadcast signal and is usually connected to an antenna.

The RF output terminal 114 is a terminal for transmitting a broadcast signal tuned by the tuner 121, which will be described later, to the outside and is normally connected to the television 300.

The line video / audio input terminal 115 is a terminal for receiving an analog signal mixed with a luminance signal Y and a color signal. The line video / audio input terminal 115 is connected to a camcorder, a DVD player, a set-top box, etc., which supports the output of an analog video signal.

The line video / audio output terminal 116 is a terminal for transmitting an analog signal mixed with a luminance signal Y and a color signal, and is connected to a television 300 that supports display of an analog image signal.

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 allows a broadcast signal of a channel requested by the input / output controller 125 controlled by the main controller 160 to be received through the RF input terminal 113.

The switching unit 123 is controlled by the input / output control unit 125 to control the input / output terminals connected to the switching unit 123 to be selectively connected to each other.

The input / output controller 125 is controlled by the main controller 160 to control the tuner 121 and the switching unit 123.

The video decoder 131 is controlled by the main controller 160 to decode and output a signal received 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 the 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 and record the audio signal output from the audio A / D converter 133 and the video signal output from the video decoder 131 using a predetermined compression format. The target data is stored in the HDD 151, which is a mass storage device. Preferably, the MPEG encoder 141 encodes the video signal by MPEG-2 compression.

Reference numeral 143 denotes an SDRAM applied as a memory used in the encoding process by the MPEG encoder 141.

The disc loading unit 155 is built in the video and sound recording / reproducing apparatus 100. The disc loading unit 155 may be a DVD player which loads to reproduce data recorded on a DVD or CD.

The disc loading unit 155 is controlled by the main controller 160 to perform recording / playback operation of video and audio signals on a DVD or CD.

The data movement path providing unit 157 provides a movement path of data recorded on the HDD 151 and data recorded on the disc inserted into the disk loading unit 155 under the control of the main controller 160. That is, the data movement path providing unit 157 records the data recorded on the disk of the disk loading unit 155 on the HDD 151 or the data recorded on the HDD 151 under the control of the main controller 160. When recording on the disc inserted in the disc loading section 155. The data movement path between the HDD 151 and the disk loading unit 155 is provided. In addition, the data movement path providing unit 157 provides a movement path when recording the data encoded by the MPEG encoder 141 to the HDD 151.

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

The key input unit 173 includes a plurality of function keys (not shown) for generating a command for selecting or performing a function supported by the video and audio recording / reproducing apparatus 100 to the main controller 160.

The main controller 160 processes user manipulation signals received through the light receiver 171 and controls each element. The main controller 160 includes a central processing unit (CPU) 161 and an MPEG decoder 163 for decoding a compressed signal in an MPEG manner. Here, the main controller 160 describes an example in which the CPU 161 and the MPEG decoder 163 are implemented as a single chip IC, but the MPEG decoder 163 is separated into a separate chip so that the main controller 160 is separated. Of course it can be connected with. The main controller 160 displays a lock setting list screen for selecting whether to lock the video / audio file recorded on the HDD 151 according to the lock setting request signal received through the light receiving unit 171.

In the flash memory 165, various programs related to the performance of the main controller 160 are recorded. For example, the flash memory 165 is provided with a graphical user interface (GUI) storage unit 165a in which a program for processing the lock setting list screen according to the present invention as a GUI screen is stored. The main controller 160 generates the lock setting list screen and the password menu screen according to the present invention as GUI screens provided for the convenience of the user based on the programs stored in the GUI storage unit 165a. The generated GUI screen is displayed on the television 300 screen.

Reference numeral 167 denotes an SDRAM used by the main controller 161 as a temporary storage location.

In the video and audio recording / reproducing apparatus 100, the main controller 160 loads an operating program mounted in the flash memory 165 at startup to support various functions from the remote controller 200 through the light receiver 171. Process in response to the received signal.

Hereinafter, a lock setting function of setting a lock on a predetermined video / audio file in order to manage the video / audio file recorded on the HDD 151 will be described in more detail. In this embodiment, the video / audio file is referred to as a 'program file'.

The lock setting function according to the present invention provides a predetermined file in order to prevent the recording target file from being overwritten in the program file to which the lock is set when the recording target file is overwritten in the previously used recording area due to insufficient recording capacity of the HDD 151. Is to set the lock to.

First, referring to the structure of the HDD 151, as shown in FIG. 3, the HDD 151 is roughly divided into a boot area 151a, a FAT area 151b, a root directory area 151c, and a data area 151d. do.

In general, the HDD 151 has a cluster structure used in a PC. Here, the cluster refers to a unit of disk space allocated by the operating system. The file recorded on the HDD 151 occupies at least one cluster, and of course, a file having a large capacity may be recorded over several clusters.

The boot area 151a is further divided into a master boot sector and a dos boot sector, and information on a partition of the HDD 151 is recorded in the master boot sector. In the DOS boot sector, information for operating an operating system, such as a capacity of a file allocation table (FAT) and a capacity of the HDD 151, is recorded.

The FAT area 151b is an area in which the file system is stored. The cluster location information and cluster status information on which cluster the program file is recorded in the data area 151d and in which order the clusters are connected are stored. It is recorded. Here, the cluster state information includes information on unused clusters, defective clusters, and final clusters.

The root directory area 151c stores initial cluster information, file capacity information, file additional information, and the like. Here, the additional information of the file includes the file name, title information, source information, date information (year / month / day) when the file is recorded, recording time information (hour / minute / second), mode in the program file recorded in each cluster. Information, lock setting information, unlocking information, and the like. Of course, the file additional information recorded in the root directory area 151c is updated every time an editing operation on the recorded file is performed.

The data area 151d is an area in which a substantial program file is recorded. In the data area 151d, music files, still picture files, and moving picture files are recorded.

As a result, the HDD 151 assigns an address for the recording target program file to an unused cluster based on the information recorded in the FAT region 151b when recording the recording target program file in the data region 151d. Write the program file to. The additional information about the recording target program file is recorded in the root directory area 151c.

On the contrary, in the case where a program file recorded in the data area 151d is to be retrieved, the HDD 151 is configured to display the data area of the data area 151d based on the information recorded in the FAT area 151b and the root directory area 151c. Directly access the cluster to read the program file to search.

Next, a lock setting process of setting a lock on a program file recorded on the HDD 151 will be described.

First, when the lock setting request signal is received through the light receiving unit 171, the main controller 160 may select whether to lock the program in the program file recorded on the HDD 151 through the television 300 screen. Process it to be displayed. The lock setting list screen 400 is displayed on the television 300 screen as shown in FIG. 4.

Referring to FIG. 4, the lock setting list screen 400 is divided into an upper region up, a middle region mid, and a lower region lower in the vertical direction.

One block (up_1) of the upper area (up) is displayed with "Lock Setting" indicating the lock setting list screen 400, and the stop area (mid) recorded in the HDD 151 capable of performing lock setting. Program guide information is displayed. In the lower region, the key operation usage information of the remote controller 200 corresponding to the use of the menu guide list screen 400 is displayed.

Here, the program guide information is implemented based on the additional information on the file recorded in the root directory area 151c of the HDD 151. Therefore, when the lock setting request signal is received through the light receiving unit 171, the main controller 160 implements the lock setting list screen 400 by using the additional information recorded in the root directory area 151c of the HDD 151. Let's do it.

If the cursor is placed on each item of the program guide information listed in the middle area mid and a predetermined key operation is performed, the program can be managed for each item. In order to set the lock according to the present invention, the cursor is positioned on the lock setting item among the program guide information listed in the middle area mid. The user can position the cursor on the lock setting item of the lock setting target program and set a lock on the corresponding program through a predetermined key operation. As shown in the figure, the information displayed in the lock setting item is preferably set to an OFF value indicating that the lock is not set as a default, and this information can be changed by the user.

When the user sets the lock setting item to ON to set the lock on the program, the main controller 160 processes to display a menu screen instructing to input a password. For example, if the lock setting item for the "Art" program is set to ON, the main control unit 160 may display a password setting screen screen (500) for instructing a password input as shown in FIG. The processing is performed so that the predetermined area of 400 is displayed to overlap. If the password inputted through the remote controller 200 matches the preset password, the main controller 160 processes the updated lock setting information to be recorded on the HDD 151, and locks the item for the "Art" program. Process to display a lock mark indicating that the lock is set. The updated lock setting information is transferred to the HDD 151 and recorded in the root directory area 151c. Therefore, the lock setting information recorded in the root directory area 151c is updated. In this way, you can lock the rest of the program.

The main controller 160 processes the program to which the lock is set as described above so as not to be deleted when the recording target file is overwritten in the recording area used due to insufficient recording capacity of the HDD 151.

Looking at the program file recording process to the HDD 151, when the file write request signal is received through the light receiving unit 171, the main controller 160 checks the remaining recording capacity without being used in the HDD 151. The recording capacity remaining in the HDD 151 can be confirmed through cluster status information recorded in the FAT area 151b. That is, the recording capacity remaining in the HDD 151 can be known using the number of unused clusters.

The main controller 160 compares the recording capacity remaining in the HDD 151 with the capacity of the recording target file. When the recording capacity remaining in the HDD 151 is larger than that of the recording target file, the main controller 160 transmits the recording target file to the HDD 151 through the data movement path providing unit 157. The recording target file transmitted through the data movement path providing unit 157 is recorded in the cluster allocated by the file system, and additional information about the recording target file is recorded in the root directory area 151c.

On the other hand, when the recording capacity remaining in the HDD 151 is smaller than the capacity of the file to be recorded, the main controller 160 determines whether the recording mode of the HDD 151 is in the overwrite mode. . If it is determined that the recording mode of the HDD 151 is the overwrite mode, the main controller 160 processes to delete the program file recorded on the HDD 151 in a predetermined order. At this time, the pre-stored program file is first-in-first-out (FIFO) method that deletes the first recorded file as priority or last-in-first-out that deletes the last recorded file as priority. : It is deleted by the LIFO) method. Here, the deletion of the program file recorded in the HDD 151 means that the cluster information of the file is deleted in the FAT area 151b, and the program file recorded in the data area 151d remains undeleted.

On the contrary, when the recording mode of the HDD 151 is the overwrite mode, the position information about the cluster stored in the FAT area 151b is sequentially deleted by the FIFO or LIFO method. The HDD 151 checks the additional information recorded in the root directory area 151c when deleting the location information of the cluster stored in the FAT area 151b under the control of the main controller 160, and deletes the information on the cluster on which the lock is set. I never do that.

The HDD 151 assigns a new address to the deleted cluster information in order to record the recording target file input through the data movement path providing unit 157 in the data area 151d. At this time, information about a recording target file is recorded in the root directory area 151c, and a program file which is actual data is recorded in the data area 151d. When the overwrite operation is executed, the previously recorded program file is deleted and the new program file is written on it. At this time, the main controller 151 processes to skip the area in which the program file to which the lock is set is recorded.

Hereinafter, a method of controlling a video and sound recording / reproducing apparatus for a lock setting function according to an exemplary embodiment of the present invention will be described with reference to FIG.

First, when power is applied to the video and audio recording / reproducing apparatus, the main controller 160 determines whether the lock setting request signal is received through the light receiving unit 171 (S600). If it is determined in step S600 that the lock setting request signal is received, the main controller 160 processes the lock setting list screen 400 to be displayed on the television 300 screen as shown in FIG. 4 (S610). When the lock setting signal is received for at least one program among the program guide information listed on the lock setting list screen 400 of FIG. 4 (S620), the main controller 160 records the lock setting information on the HDD 151. In step S630, the additional information of the program file recorded in the root directory area 151c is updated.

Thereafter, when a file write request signal is received through the light receiving unit 171 (S640), the main controller 160 checks the capacity of the unused recording area in the data area 151d of the HDD 151 ( S650). Then, the main controller 160 compares the recording capacity remaining in the HDD 151 with the recording capacity of the recording target file (S660).

If it is determined that the recording capacity remaining in the HDD 151 is greater than or equal to the recording capacity of the recording target program file, the main controller 160 may record the recording target program file in a cluster not used in the HDD 151. Process (S665), and return to step S650. On the contrary, if it is determined that the recording capacity remaining in the HDD 151 is less than or equal to the recording capacity of the file to be recorded, the main controller 160 determines whether the recording mode of the HDD 151 is in the overwrite mode. It is determined (S670).

If it is determined in step S670 that the recording mode of the HDD 151 is not the overwrite mode, the main controller 160 does not perform the recording operation, and the recording capacity of the HDD 151 is insufficient to record the recording target program file. An error message indicating that it cannot be displayed is displayed on the screen of the television 300 (S680).

On the other hand, if it is determined in step S670 that the recording mode of the HDD 151 is the overwrite mode, the main controller 160 processes the program target file to be overwritten sequentially in a predetermined order to the used data area 151d. However, processing is performed to skip the area in which the locked program file is recorded (S690).

On the other hand, in order to prevent the program files stored in the HDD 151 from being overwritten when the recording capacity of the HDD 151 is exceeded, the program file recorded in the HDD 151 is searched in advance to set a lock on a program to be preserved. I explained about it. However, the lock setting process may be implemented such that after the recording capacity is exceeded, the lock is set to a predetermined file and then overwritten after the write capacity is performed.

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.

As described so far, according to the video and audio recording / reproducing apparatus having a lock setting function according to the present invention and a control method thereof, a lock is set to a program file to be stored among program files recorded on a HDD as a storage device. In addition, by deleting a previously stored program file due to insufficient storage capacity of the storage device and skipping a program file having a lock set when overwriting a new program file thereon, important files can be prevented from being lost.

Claims (4)

A super video input terminal for receiving an image signal in which the luminance signal and the chrominance signal are separated; A super video output terminal for outputting a video signal in which the luminance signal and the chrominance signal are separated; An RF input terminal for receiving an over-the-air broadcast signal; An RF output terminal for transmitting an over-the-air broadcast signal to the outside; A line video / audio input terminal for receiving an image signal in which a luminance signal and a chrominance signal are mixed; A line video / audio output terminal for outputting a video signal in which the luminance signal and the chrominance signal are mixed; And And a switching unit for switching at least one of a signal input through the input terminals and a signal output through the output terminals. An encoder for encoding a video or audio signal received from an external source into a predetermined compression format; And And a controller for controlling the encoded video or audio signal to be stored in any one of a magnetic recording medium and a disc recording medium. The method of claim 2, A decoder for decoding the video or audio signal recorded on the magnetic recording medium or the disk recording medium to decompress; And And a storage medium for temporarily storing data for encoding or decoding processing of the video or audio signal. The method of claim 2, The magnetic recording medium, And a boot zone, a FAT zone, a root directory zone, and a data zone.

Images