KR100313849B1 - Method for recording and playing back still video - Google Patents

Abstract

PURPOSE: A method for recording and playing a still picture is provided to asynchronously play a still picture picked up by a digital camera and an extra audio data. CONSTITUTION: In the data composed of a still picture and a sound, extra audio data are added. The extra audio data are the audio data recorded by being added to the still picture and audio mixed data. The extra audio data are dispersed when being recorded physically. The position of the data region where the still picture data are mixed with the audio data and the extra audio data are indicated. The position information is stored in a memory, and is used during playback. A microcomputer checks a playback mode of a player. If the player is in an automatic playback mode, the still picture is played depending on the playback length of the audio data. Then, the mixed data of still picture data and audio data 1, the mixed data of the still picture data and audio data 2, and the mixed data of still picture data and audio data 3 are played sequentially.

Description

Still image recording and playback method {Method for recording and playing back still video}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal recording method, and more particularly, to a video recording and reproducing method for adding and recording additional additional audio data to data in which still image signals and audio data are mixed.

In general, while watching a video on a personal computer equipped with a Video-CD (Compact Disc) or TV tuner, it stops due to the spread of a digital camera that stores a still image of a desired scene or a digital camera that stores a subject as a digital video signal. You can easily record and delete images. Such still images can be edited with other still images stored on a hard disk of a personal computer, and as an example, a family album can be created by collecting pictures taken by a digital camera on a recordable disk.

Fig. 1 shows a still image recording structure diagram of a general digital camera, and is composed of a series of still image data (still image 1, still image 2, still image 3 .....).

The still image as shown in Fig. 1 is recorded in a storage medium attached to a digital camera and then recorded and reproduced in a device capable of recording and reproducing video data. When playing back such data, the user displays one still image and then presses the next screen display button to display the next still image. In other words, a manual reproduction method is used to reproduce data.

FIG. 2 illustrates a recording structure in which a general still image and audio data are mixed, and a form in which one still image and corresponding audio data are mixed, that is, still image + audio data 1, still image + audio data 2, and still image Video + audio data 3 .... In the case of reproducing such data, a still image is generally displayed, and audio data mixed in the image is reproduced at the same time. At this time, the audio data is data related to the still image, and is reproduced in synchronization with the still image and has a predetermined time. Therefore, the time for displaying the still image depends on the reproduction time of the audio data. That is, it is an automatic playback method in which both still images and audio data are automatically played without a user pressing a separate button.

However, as shown in FIG. 2, when the still image and the audio data are mixed, it is difficult for a user to modify the voice data or insert another voice data because the voice data is fixed to a fixed length. Due to the length of the data, there are various problems.

The technical problem to be achieved by the present invention is to add a separate additional audio data to a mixture of still images and audio data produced by a digital camera, etc., so that not only still images but also audio data can be viewed at the same time To provide.

Another technical problem to be achieved by the present invention is to provide an image recording method for recording additional positional audio data and recording the positional information while adding additional audio data to a mixture of still and audio data produced by a digital camera. have.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a still image reproducing method of asynchronously reproducing additional audio data separately from data in which still images and audio data produced by a digital camera or the like are mixed.

1 shows a still image recording structure diagram of a general digital camera.

2 shows a recording structure in which a general still image and audio data are mixed.

3 illustrates a data structure according to the present invention.

4 is a block diagram of a still image processing apparatus according to the present invention.

FIG. 5 illustrates an example of an information structure for the data of FIG. 3.

FIG. 6 is a flowchart showing a method of reproducing recorded data as shown in FIG. 3 in accordance with the present invention.

In order to solve the above technical problem, the present invention provides a digital still image and audio data composition method.

Constructing a plurality of data in which still image and audio data are mixed;

And a step of configuring additional audio data in another area separately from the data configured in the above step.

In order to solve the above other technical problem, the present invention provides a method for recording a still image and audio data,

The first data mixed with the still image and the audio data and the second data which is the audio data added to the first data are separated and recorded in a separate area, and the start of the data for each of the first and second data is stored in a memory. The position and end position values are recorded, and the presence or absence of the second data corresponding to the first data and the address thereof are recorded.

In order to solve the above other technical problem, the present invention provides a method for reproducing additional audio data added to the mixed data and the mixed data of the still image and audio data,

A first step of selecting whether to play the mixed voice data or the added voice data;

And reproducing asynchronously with the still image when reproducing the audio data added in the first process.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 shows a data structure according to the present invention, and the structure of FIG. 3 is different from the still image and the mixed data (still image + audio 1, still image + audio 2, still image + audio 3). Voice data (added voice data 1-1, additional voice data 2, additional voice data 3, additional voice data 1-2). Here, the additional audio data 1-1, 2, 3, and 1-2 represent newly recorded audio data with respect to the data 1, 2 and 3, which are a mixture of still images and audio, respectively. , 1-2 is a case where one voice data 1 is distributed when it is physically recorded due to space constraints or the like. And the position of the data (still image + audio) area where each still image and audio are mixed and the position of the added audio data are displayed, and the information about these positions is stored in the memory as a separate information structure and used for playback. do.

4 is a block diagram of a still image processing apparatus according to the present invention and includes a voice recording button 410, a playback button 420, a recording medium 430, and a controller 440.

In the recording mode, the controller 440 mixes the still image data captured by the digital camera and the audio data input from the microphone sequentially into the recording medium 430 as mixed data. Subsequently, the controller 440 records the voice data flowing in the recording medium 430 at the same time the voice recording button 410 is pressed to add separate voice data to the mixed data recorded on the recording medium 430. do. At this time, the controller 440 records the incoming voice data in a different area from the mixed data area. When the recording of the additional audio data ends, the controller 440 records the location information of the mixed data and the location information of the additional audio data in a separate area of the recording medium 430, and refers to the location information during playback.

In the playback mode, the controller 440 sequentially reads the still image data and the audio data recorded on the recording medium 430 when the play button 420 is pressed, and the position information when the play button is pressed. The audio data is discarded from the mixed data with reference to the still image data and the added audio data.

FIG. 5 shows an example of an information structure for the data of FIG. 3, and FIG. 5 shows information about a start position and an end position of a still image and audio mixed data (still image + audio), and the mixed data. Information indicating the presence or absence of additional voice data (" 1 " and " 0 ") and address information on additional voice data corresponding to the mixed data are included. Here, the start and end position values are sector numbers. If there is no additional audio data, the next item offset is ignored, and if there is additional voice data, the position information of the voice data to which the offset information of the next item is added is displayed. . The offset information is composed of a start position and an end position of the added voice data, and when the added voice data is distributed and recorded, other added voice data distributed to the added voice data using additional voice data presence information. Will be displayed.

Referring to the structure shown in FIG. 5, first, the start position and the end position of the mixed data of the still image and the voice are displayed. That is, the first position 0 and the position 1 respectively indicate the start position and the end position of the first mixed data (still image + audio 1), and the second position 2 and the position 3 respectively indicate the second mixed data (still image + audio 2). ) Indicates the start position and end position. Then, it is displayed whether or not voice data is added to the mixed data. That is, if the additional voice data availability information is "1", it indicates that there is information added to the mixed data, and if "0", there is no information added to the mixed data. The mixed data shown in FIG. 3 (still image + audio 1, still image + audio 2, and still image + audio 3) are all cases where the added audio data exists, so the additional audio data information becomes "1". At this time, the position information of the added voice data becomes position information (POS1, POS2, POS3, ...) which is an address indicated in the offset information of the next item. In addition, as shown in FIG. 3, the audio data 1 added to the first mixed data (still image + audio 1) is physically added to the additional audio data 1-1 and 1-2 so that recording positions are separated. After recognizing the start position (position 6) and the end position (position 7) of the data 1-1, the offset information POS4, which is the position information of the voice data 1-2 added thereto, is read, and the second audio data 1-2 added. It is possible to know the start position (position 12) and the end position (position 13) of the voice data, so that the voice data is the last because the added voice data 1-2 has information (“0”) that no voice data is added. have. Therefore, the structure as shown in FIG. 5 is maintained even if only the location information of the changed blocks is continuously updated even if the size of the added voice data is variable.

FIG. 6 is a flowchart showing a method of reproducing recorded data as shown in FIG. 3 in accordance with the present invention.

First, the microcomputer checks the playback mode set in the player (step 612). That is, it is discriminated whether the still mode is an automatic mode in which the still image is automatically processed or the manual mode in which the still image is displayed one by one according to a user's input. If the playback mode is the automatic mode, the still image is played back according to the playback length of the recorded audio data, as shown in FIG. 3, so that the still image and the audio data 1 are mixed and the still image and the audio data 2 are mixed. In operation 614, 616, and 618, the mixed data of the still image and the audio data 3 is sequentially reproduced. At this time, the playback time depends on the playback time of the audio in each of the mixed data, and is reproduced using the start position and the end position information for each of the mixed data shown in FIG.

If it is in the manual mode, the audio data is discarded from the data 1 in which the still image and the audio are mixed as shown in FIG. 3, and only the data for the still image 1 is taken and reproduced (step 621). The desired additional voice data 1 is found and reproduced using the start position and the end position information of the recorded voice data (step 622). At this time, the still image 1 and the added audio data 1 are reproduced asynchronously. Also, only the still image is extracted by setting a value for distinguishing whether the data is related to the still image or the audio data from the mixed data of the still image and the audio data. When the next still image is reproduced through a separate input from the user, the still image 2 and the added audio data 2 are reproduced again (steps 623 and 624), and then the still image 3 and the added audio data 3 are reproduced (626). 627).

The present invention is not limited to the above-described embodiment, and of course, modifications may be made by those skilled in the art within the spirit of the present invention. In other words, when playing back only the still image in the manual mode and trying to play the audio data added thereto, if there is no additional audio data to play, only the video is played for a predetermined time and the next still image is input by the user. Can be displayed. This is to ensure the minimum playback time for all still images.

As described above, according to the present invention, by adding and recording additional additional audio data to the data in which the still image and the audio data are mixed, the audio data can be added to the specific still image for a desired time. Only data can be updated and recorded. In addition, the reproduction method of the data can be changed according to the reproduction mode selected by the user, and the original speech data and the added speech data can be selected and played.

Claims (8)

In the method of recording digital still image and audio data, Setting the mixed data by mixing the still image and the audio data ; And adding the audio data to the mixed data set in the step, and recording the added audio data in an area different from the area of the mixed data . The still image processing method of claim 1, wherein the additional audio data is asynchronous with the mixed data. In the method for recording still image and audio data, The first data in which the still image and the audio data are mixed and the second data, which is the audio data added to the first data, are separated and recorded in a separate area, and the data is stored in the memory for each of the first and second data. And recording the start position and the end position, and the presence or absence of the second data corresponding to the first data and the address thereof. 4. The still image recording method according to claim 3, wherein the additional audio data is recorded asynchronously with the mixed data. 4. The still image recording method according to claim 3, wherein the start position and end position values are set by sector numbers. A method of reproducing additional audio data added to data mixed with still images and audio data, the method comprising: A first step of selecting whether to play the mixed voice data or the added voice data; And reproducing the audio data added in the first process asynchronously with the still image. The method of claim 6, wherein the second process deletes the audio data from the mixed data of the still image and the audio data, and reproduces the data for the still image. And searching for and playing the additional audio data in the start position and the end position information in which the added audio data is located. The method of claim 6, further comprising displaying a still image for a predetermined time when the added audio data does not exist.