KR100963902B1 - How to record and retrieve file side information - Google Patents

Abstract

The present invention relates to a method for recording and reproducing file additional information, the method comprising: receiving an additional information recording command, inputting additional information to be recorded, selecting a file in which the additional information is to be recorded, and recording the additional information And selecting the additional information in the comment segment of the file entry or the image data according to the method of recording the additional information selected in the above step, so that the internal memory can be efficiently used. By using the search, it is possible to search much simpler and faster than the conventional method using the private key.

Additional Information, File Entry, Comment Segment, Search Mark

Description

File addition information recording and search method

1 is a block diagram of a conventional digital still camera integrated camcorder,

2A is a flowchart for explaining a conventional file additional information recording;

2B is a flowchart for explaining a conventional method of reproducing file additional information;

And,

3 is a flowchart for explaining a file additional information recording and retrieval method of the present invention.

Description of the Related Art [0002]

20: camera unit 40: digital signal processing unit

50: control unit 60: memory card

The present invention relates to a method for recording and reproducing file additional information. In particular, the video recording and reproducing apparatus records additional information consisting of user arbitrary data in a file-entry or directly to image data, and then reproduces the additional information. It relates to a method for displaying.

In general, an image processing apparatus such as a digital still camera (DSC) and a digital video camcorder (DVC) (hereinafter referred to as a "digital still camera type") is a digital signal inputted through a lens. And then store it in a recording medium such as a hard disk or a memory card. That is, the photographed image may be stored in the recording medium without recording the film or the like, and the digital image may be directly input to the computer without using a scanner or the like. The image processing apparatus is easy to edit and modify because of its high compatibility with a personal computer, and can transmit images taken by connecting to an external computer.

A general digital still camera integrated camcorder is shown in FIG.

As shown in the figure, a digital still camera-integrated camcorder includes a camera unit 20, a digital signal processing unit 40, a display unit 30, a memory card 60, a key input unit 70, and a control unit 50. do.

The camera unit 20 has a first camera unit 23 for a digital still camera for capturing still images and a digital video for capturing an image including a video having a smaller number of pixels than the first camera unit 23. The second camera part 25 for cameras is provided.

The first camera unit 23 includes a DSC lens 23a for a digital still camera, a DSC CCD 23b for a digital still camera for converting a still image captured by the DSC lens 23a into an electrical signal, and And a DSC driver 23c for driving the DSC CCD 23b. The DSC driver 23c is controlled to be driven by the controller 50. In other words, when it is determined that the still image is taken, the controller 50 controls the DSC driver 23c to drive the DSC CCD 23b. Since the first camera unit 23 is the same as that of a general digital still camera, a detailed description thereof will be omitted.

The second camera unit 25 includes a DVC lens 25a for a digital video camera, a DVC CCD 25b for a digital video camera for converting a moving image or a still image captured by the DVC lens 25a into an electrical signal. And a DVC driver 25c which is controlled by the controller 50 and drives the DVC CCD 25b. In the video shooting mode, the controller 50 controls the DVC driver 25c to drive the DVC CCD 25b. Since the second camera unit 25 is configured to be applied to a conventional digital video camera such as a camcorder, a detailed description thereof will be omitted.

The display means 30 is usually provided with a viewfinder (not shown) and an LCD panel (not shown) for displaying an image captured by the camera unit 20, the user while taking a picture of the LCD On the other hand, the shooting status can be checked through the panel. On the contrary, the other party taking the image can check his shooting status, and the photographer can check the shooting status through the viewfinder.

The controller 50 senses a mode to drive a camera unit corresponding to the selected photographing mode, and predetermined control data is input and set through the key input unit 70. In addition, the controller 50 may process the signal transmitted from the first image processor 41 or the second camera unit 25 to process the signal transmitted from the first camera unit 23. Selectively drive control according to the selected shooting mode. That is, the first image processing unit 41 compresses the still image photographed by the first camera unit 23 and stores it in the memory card 70 and processes it as a displayable signal through the display means 30. In addition, the second image processing unit 43 processes the moving image signal photographed by the second camera unit 25, stores it in the memory card 60, and compresses the signal into a displayable signal through the display unit 30.

The conventional digital still camera integrated type configured as described above records and uses additional information (user-specified data such as a recorder, a recording place, and a memo) related to the image data when the image data is recorded for the convenience of the user. The additional information is indexed in the internal memory 47 of the control unit 40, prepared as a table, and separately recorded and managed. In addition, when the video data is reproduced, the above additional information is displayed together with the additional information table stored in the internal memory during recording. Normal file search is performed using the FF and REW keys (not shown) of the key input unit 70. This additional information recording and retrieval method of the prior art will be described with reference to Figs. 2A and 2B.

When the user wants to record additional information in the image data (file) (S81), the control unit 40 displays a related screen and selects a file to be recorded using the FF and REW keys of the key input unit 70 (S82). In step S83, additional information (recorder, recording place, memo, etc.) is input (S84). When the input is completed (S85), the control unit 40 creates the additional information table and stores the information in the internal memory 47. If the user wants to reproduce the additional information (S91), and selects the file to be displayed through the FF, REW key (S92) (S93), the control unit 40 adds the associated additional information from the table stored in the internal memory 47. Information is read out and acquired (S94), and the associated video data (file) and additional information are displayed on the monitor and the LCD device (S95).

However, the conventional method of recording and retrieving the additional information has to store the additional information in the internal memory of the video recording device (camcorder integrated with a digital still camera), so that not only the use efficiency of the internal memory is reduced, Only the recording and display of additional information are supported, and the recorded additional information cannot be used to search for files. In addition, in order to display an image file stored in a removable memory card (Memorystick, Smart Media Card, etc.) on another image reproducing apparatus, a problem arises in that an additional information table must be separately prepared.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In the video recording and reproducing apparatus, when the additional information is recorded, the additional information is directly recorded in the image file instead of the internal memory, thereby increasing the efficiency of the memory and at the same time searching and displaying the additional information. Another object of the present invention is to provide a method of recording and reproducing additional information.

According to an embodiment of the present invention, a method of recording and retrieving a file additional information recording method according to the present invention may include receiving an additional information recording command, inputting additional information to be recorded, and recording the additional information. And selecting the file and directly recording the additional information into a file entry of the file or a comment segment of the image data.

Determining whether an additional information search command has been input, inputting an additional information keyword to be searched, extracting additional information from the file entry or comment segment, and determining whether the additional information search command matches the input keyword; If the additional information is matched, the method may further include displaying a file together with the extracted additional information to search for and display the stored additional information.

The method may further include receiving an additional information recording command, inputting additional information to be recorded, selecting a file in which the additional information is to be recorded, selecting a recording method of the additional information, and selecting the additional information selected in the step. The method may include recording the additional information in a comment segment of a file entry or image data according to a recording method.

The method may further include determining whether an additional information search command has been input, inputting an additional information keyword to be searched, extracting additional information from the file entry or comment segment, and determining whether the additional information search command matches the input keyword. If the additional information matches at the step, the method may further include displaying a file together with the extracted additional information so that the stored additional information may be retrieved and displayed.

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

3 is a flowchart for explaining a file additional information recording and retrieval method of the present invention. In addition, since the configuration for achieving the object of the present invention can be used in the same manner as in Figure 1 will be described using the same configuration and symbols.

As shown in the figure, the present invention is divided into a recording method, a retrieval method, and a display method of additional information (recorder, recording place, user specified arbitrary data such as MEMO).

First, the additional information recording method of the present invention comprises a file entry area and a method of directly recording image data. When a user command is input through the key input unit 70 (S110), a file to input additional information is selected through the key input unit 70 (S120). When the desired file is selected (S130), the relevant additional information is input (S140). At this time, the additional information is configured to receive a user's desired TEXT format by the user's arbitrary data such as the recorder's name, recording location, uniqueness, date, etc. When the input of the additional information to be recorded in the process is completed, a screen is displayed to select a recording method (S150). In the embodiment of the present invention, as described above, the first step is to select a file to record the additional information (S130) and to set the additional information to be input (S140). It can also be configured as a selection step. If the user selects a method of recording in the file entry, the additional information is recorded in the file entry (S160). If the user selects a comment segment recording method of the video data, the additional information is recorded in the comment segment of the video data. Segment) is recorded (S170). In addition, the present invention has been described to include a method of recording the additional information, but may be automatically set in the file entry or comment segment of the image data according to the type of the image data to be recorded. The file entry area is an area in which a file name, extension, file date, file size, and cluster address are recorded. The file entry area is stored in a reserved area which is not actually used. For reference, Table 1 is a schematic structural diagram of the file system, and Table 2 shows a detailed structure of the file entry area (root directory entry) of the file system.

Master Boot Record (MBR) Dos Boot Record (DBR) File Allocation Table Root Directory Entry DATA area

In the above, MBR is an area for storing partition information on a storage medium, DBR is an area for storing booting information on a storage medium, and FAT is also called a file placement table. Literally, each file is located at a certain position (cluster). RDE is an area that contains information on whether there is information, RDE is an area where information (file name, extension, attribute, date, time, size, etc.) about each file is stored. DATA area is the area where actual data is stored.                     

Name 8 byte Extension 3 byte Attributes 1 byte reserved 10 byte Time 2 byte Date 2 byte Time 2 byte Date 4 byte

As shown in Table 2, the additional information is recorded in a reserved area allocated to 10 bytes of the root directory entry area (RDE Area) of the file system. The method of recording the additional information in the comment segment of the image data in step S170 is a method of directly recording the additional information in the image file. The additional information designated by the user is recorded in the comment related segment in the image data area. Comment-related segments serve as a kind of reserved area that users can leave comments with.

When the user wants to search the file using the stored additional information as described above (S210) and receives the additional information keyword to be searched through the key input unit 70 (S220), the controller 40 may comment on the file entry or image data. If the additional information is extracted from the related segment (S230) and the additional information of the searched file matches the input additional information (S240), the file or image data is displayed together with the related additional information (S260) and the information matching the related additional information is displayed. If not, it is connected to step S220 to input another additional information.

In addition, when the user intends to display the additional information using the stored additional information as described above (S310), the controller 40 extracts the additional information from the comment related segment of the file entry or the image data (S320) and displays the additional information. What is necessary (S330).

As described above, according to the present invention, the additional information can be easily retrieved or displayed while maintaining the efficiency of the memory embedded in the image device.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and variations belong to the appended claims.

As described above, according to the file additional information recording and retrieval method according to the present invention, when the additional information is utilized, the memory embedded in the video device can be saved by directly writing to a file. Even if is changed, the existing additional information is stored in the file so that it is not lost. In addition, by searching using a keyword, it is possible to search much simpler and faster than the conventional method using a private key.

Claims (5)

Receiving an additional information recording command; Receiving additional information to be recorded; Receiving a file for recording the additional information; And And recording the additional information directly in a file entry of the file or in a comment segment of image data. The method of claim 1, Steps performed after the recording step, Determining whether an additional information search command is input; Receiving an additional information keyword to search for; Extracting additional information from the file entry or comment segment to determine whether it matches the input keyword; And And displaying the file together with the extracted additional information when the additional information matches in the step. The method of claim 1, Steps performed after the recording step, Determining whether an additional information display command is input; And And extracting and displaying additional information from the file entry or comment segment. Receiving an additional information recording command from a user; Receiving additional information to be recorded from the user; Receiving, by the user, a file in which the additional information is to be recorded; Receiving a selection method of the additional information from the user; And And recording the additional information in a comment segment of a file entry or image data according to the recording method of the additional information selected in the step of selecting the recording method of the additional information. The method of claim 4, wherein Steps performed after the recording step, Determining whether an additional information search command is input; Receiving an additional information keyword to search for; Extracting additional information from the file entry or comment segment to determine whether it matches the input keyword; And And displaying the file together with the extracted additional information when the additional information matches in the step.

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