KR100513351B1 - Method for file close in digital recorder - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of closing a file in a digital recorder, while recording data on a recording medium such as a hard disk (HDD), and recording navigation information about the data in a nonvolatile memory such as a flash memory. In addition to storing, when the data recording operation is abnormally interrupted due to a power failure or the like, the data recording operation is resumed, a file close operation is performed on the previously interrupted data by reading the navigation information recorded in the nonvolatile memory. By properly performing the above, it is a very useful invention that it is possible to prevent the precious data recorded before the file closing from being lost due to abnormal data recording interruption.

Description

How to close a file in a digital recorder {Method for file close in digital recorder}

The present invention relates to a file closing method in a digital recorder, and more particularly, to a file closing method in a digital recorder for normally closing a file recorded on a recording medium such as a hard disk (HDD).

Recently, a digital recorder including a recording medium capable of recording and storing high quality video data and high quality audio data for a long time, such as a hard disk (HDD), has been developed and commercialized. It is becoming.

On the other hand, in the digital recorder, while performing a series of data recording operations for recording and storing the video and audio data on a hard disk, the device provides navigation information, for example, last recording time information and recording position information, for the data. After temporary storage in the RAM memory included therein, the data is recorded and stored on the hard disk at a predetermined time interval (for example, 5 minutes).

And. When the recording is requested from the user, the data recording operation is stopped and a file closing operation for recording and managing the data as an arbitrary data file is performed. In this case, the last recording temporarily stored in the RAM memory is performed. Navigation information such as time information and recording position information is recorded and managed as navigation information for the data file in the navigation information recording area allocated to the hard disk.

Therefore, the user can record and store his / her desired video and audio data as an arbitrary data file on a hard disk included in the digital recorder, and in the digital recorder, the last recording position information and the recording of the data file are recorded. By recording and managing time information and the like as navigation information, it is possible to read out and reproduce the data file or to continuously record new data after the last recording position.

However, in the conventional digital recorder, the navigation information for the recording data is temporarily stored in the RAM memory which is the volatile memory as described above. Thus, if the recording operation is abnormally interrupted due to a power failure during the data recording operation, the file close is closed. Since the navigation information for the previously recorded data is lost, even when the system power is turned on after a power failure, the file closing operation for the previous recorded data cannot be performed, thereby losing valuable data. This will occur.

In more detail, in the digital recorder, whenever a block of a predetermined recording unit is recorded, the recording position, time information, and other control information should be recorded together when the data recording operation is performed. When the recording is made every block, the load on the digital recorder is increased, so that it is collected in the memory in about 5 minutes and then recorded in the navigation information recording position.

Of course, the file is not closed only by the information recorded every 5 minutes, and the digital recorder does not recognize the existence of the recorded program and thus cannot be played back. If a power failure occurs during recording, the memory is stored in the memory. The information is lost, which makes file closing impossible.

Accordingly, the present invention was created to solve the above problems, and while recording data on a recording medium such as a hard disk (HDD), navigation information for the data is stored in a nonvolatile memory such as a flash memory. If the data recording operation is stopped after the data recording operation is abnormally interrupted due to a power failure or the like, the navigation information stored in the nonvolatile memory is read, and the file closes to the previously stopped data. It is an object of the present invention to provide a method of closing a file in a digital recorder so that the operation can be performed normally.

A file closing method in a digital recorder according to the present invention for achieving the above object comprises the steps of recording and storing navigation information on the data in a nonvolatile memory while recording data on a recording medium; And resuming again after the data recording operation is abnormally interrupted, reading out the navigation information stored in the nonvolatile memory, and performing a file closing operation on previously stopped data. It is characterized by.

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

1 shows a configuration of a digital recorder to which a file close method according to the present invention is applied. The digital recorder includes a storage 10, a recording / reproducing system 11, a microcomputer 12, a RAM memory ( 13) and a flash memory 14 or the like.

In the storage 10, for example, a hard disk, various data such as video, audio, or text may be stored and managed as a data file, respectively. In the recording / reproducing system 11, According to the operation control of the microcomputer 12, data input from the outside is recorded and stored in the hard disk.

In addition, in the microcomputer 13, navigation information on data recorded and stored on the hard disk as described above, for example, final recording position information and recording time information, a recording start ID and a recording end ID Navigation information such as information) is stored in the RAM memory 13 and the flash memory 14, respectively.

For example, as shown in FIG. 2, when the recording end is normally requested while recording data at the user's request, the microcomputer 12 sends the corresponding data to a first data file (Data File # 1). File close).

Then, the navigation information (Data File # 1_Info) for the first data file is recorded and managed in the navigation information recording area of the hard disk, and thereafter, new data is recorded according to a user's request. After the recording operation is abnormally interrupted and resumed due to a power failure release, the second data file (Data File # #) is used to refer to the navigation information stored in the flash memory 14 to stop recording the data before file closing. 2) the file is closed.

In addition, the navigation information stored in the flash memory is read, and the navigation information (Data File # 2_Info) for the file-closed second data file is recorded and managed in the navigation information recording area of the hard disk. This will be described in detail below.

FIG. 3 is a flowchart illustrating a file closing method of the digital recorder according to the present invention. In the microcomputer 12, as described above, data is recorded on the hard disk 10 included in the apparatus. A series of data recording operations are performed (S10), and as shown in FIG. 4, navigation information for the recording data, for example, the last recording position (Last_Rec_Address) information, the recording time (Last_Rec_Time) information, and the recording program After setting the unique ID assigned to the recording start ID Rec_Start_ID, the navigation information is stored in the RAM memory 13 or the flash memory 14.

On the other hand, when the microcomputer 12 performs the file closing operation according to the user's request to stop the data recording operation, the microcomputer 12 performs file closing of the recorded data with a temporal continuity to an arbitrary data file and the RAM memory ( 13) reads the navigation information stored in the navigation information, and performs a normal file closing operation of recording in the navigation information recording area of the hard disk (S19). As shown in Fig. 4, in order to indicate a normal file close, the recording end ID Rec_End_ID having the same value as the recording start ID Rec_Start_ID is recorded and stored.

However, in the microcomputer 12, before the file closing is normally performed, after the system power is turned off due to a power failure or the like (S14), when the system power is turned on again due to the correction cancellation or the like (S15), the flash The navigation information stored in the memory is searched and referenced (S16).

For example, when the recording end ID Rec_End_ID having the same value as the recording start ID Rec_Start_ID is recorded in the flash memory, it is determined that the normal recording has been completed, and the same value as the recording start ID Rec_Start_ID. If the recording end ID Rec_End_ID is not recorded, it is determined that the abnormal recording end has occurred before, and when the normal recording ends, the knock end ID Rec_End_ID is updated to the recording start ID Rec_Start_ID. However, if the normal end is not completed, the recording end ID is not personalized as the recording start ID and thus has a different value.

When the abnormal recording end is determined through the above process (S17), the microcomputer 12 uploads the navigation information stored in the flash memory to the RAM memory and then uses the navigation information. And a file closing operation of recording and closing data previously recorded as a file as an arbitrary data file and recording and storing the data as navigation information for managing the data file in the navigation information recording area of the hard disk. It is performed (S18).

In this case, the file closing operation as described above may be automatically performed by the microcomputer or selectively performed according to a user's request. The present invention provides a large capacity such as a hard disk (HDD) in addition to a digital recorder. It can be applied to a personal computer (PC) or the like included in the recording medium of the present invention.

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 closing method in the digital recorder according to the present invention, which is constructed and constructed as described above, records data on a recording medium such as a hard disk (HDD) and the like and stores navigation information on the data such as a flash memory. In addition to storing the data in the volatile memory and resuming the data recording operation abnormally due to a power failure or the like, when reading is resumed, the navigation information stored in the nonvolatile memory is read out to close the file for the previously stopped data. By performing the File Close) operation normally, valuable data recorded before the file close is prevented from being lost due to abnormal data recording interruption.

1 illustrates a configuration of a digital recorder to which a file close method according to the present invention is applied.

2 illustrates a file closing process in the digital recorder according to the present invention.

3 is a flowchart illustrating an operation of a file closing method in a digital recorder according to the present invention;

4 illustrates navigation information stored and managed by a file closing method in a digital recorder according to the present invention.

※ Explanation of code for main part of drawing

10: storage 11: recording / playback system

12: microcomputer 13: RAM memory

14 flash memory

Claims (5)

Recording and storing navigation information on the data in a nonvolatile memory while recording data on a recording medium; And When the data recording operation is abnormally interrupted and resumed again, the file for the previously interrupted data by referring to whether the recording start ID and the recording end ID match among the navigation information recorded in the nonvolatile memory. A method for closing a file in a digital recorder, comprising: performing a close operation. The method of claim 1, The first step is a file closing method of a digital recorder, characterized in that for continuously updating and storing the recording time information and the recording position information for the data in a nonvolatile memory. The method of claim 1, In the second step, when the system power is abnormally turned off during the data recording operation, when the power is turned on again, the navigation information recorded in the nonvolatile memory is read and the file closing operation is automatically performed or a user request is made. Selectively closing according to the file recording method of the digital recorder. delete The method of claim 1, The recording start ID and the recording end ID are unique IDs assigned to a recording program, and are recorded and stored at the same value at the end of the normal recording, and are stored at different values at the end of the abnormal recording. .