KR100606516B1 - Apparatus and method for separate recording and playback of audio and video in digital recorders - Google Patents

Abstract

The present invention relates to an apparatus and method for separately recording and reproducing audio and video in a digital recorder. For example, in various types of digital recorders such as a DVD-Recorder, etc. In accordance with the present invention, the audio and video are encoded in different formats, recorded as different files, and generated and stored management information for cooperatively playing the recorded other files. Then, the management information is retrieved. For reference, by separately playing the recorded other files, the separated and recorded files can be treated as audio files that can be played back in a portable MP3 player or CD player, and in a DVD recorder or the like, Since you don't have to record the movie as it is, you can reduce the wasted recording capacity. In addition, it is a very useful invention that can connect and play back audio and video, and greatly improve the learning effect.

Digital recorders, DVD recorders, MP3 files, JPEG files, separate recording and playback

Description

Apparatus and method for separating record and play audio and video in digital recorder}             

1 illustrates a configuration of a digital recorder to which the present invention is applied.

2 is a flowchart illustrating an operation of a method of separately recording and playing audio and video in a digital recorder according to the present invention;

3 illustrates link information stored and managed according to the present invention.

※ Explanation of code for main part of drawing

10: analog signal processor 11: video A / D converter

12: JPEG encoder 13,16,19,22: local memory

14 audio A / D converter 15 MPEG audio encoder

17: Video D / A converter 18: JPEG decoder

20: audio D / A converter 21: MPEG audio decoder

23 memory 24 digital signal processing unit

25: microcomputer 26: optical disk

27: memory card 28: hard disk

The present invention relates to an apparatus and method for separately recording and reproducing audio and video in a digital recorder, for example, when recording audio and video in various types of digital recorders such as a DVD-Recorder. An apparatus and method for audio and video separate recording and playback in a digital recorder for enabling separate recording and playback of audio and video in files of different formats, respectively, upon request.

Recently, a DVD recorder capable of recording audio and video signals input from the outside into various types of recording media such as a hard disk or a memory card, as well as an optical disk such as a DVD ( Various types of digital recorders, such as DVD-Recorders), have been widely available and commercialized, and the applications of the digital recorders are also increasingly diversified.

On the other hand, portable MP3 players are widely used and used, for example, there may be a need to share MP3 files between a DVD recorder and a portable MP3 player by using a specific recording medium such as a memory card.

For example, if a language program or a music video that is broadcast through a television is divided into audio and video and then only audio is played separately, the audio and video may be sufficient. There is a demand for an efficient method for allowing a user to reproduce and listen to audio using a portable MP3 player after separating and recording only audio from a signal, and separately recording to a specific recording medium such as a memory card.

Accordingly, the present invention has been created in view of the above circumstances, and in various types of digital recorders such as a DVD-Recorder, etc., in audio and video recording, at the request of the user, the audio and The video is encoded in different formats, recorded in different files, and generated and stored in management information for cooperative reproduction of the recorded other files. Then, the management information is searched and referred to for the recorded information. It is an object of the present invention to provide an apparatus and method for separately recording and reproducing audio and video in a digital recorder for enabling cooperative reproduction of different files.

Audio and video separation recording and playback method in the digital recorder according to the present invention for achieving the above object, in the audio and video recording, by encoding the audio and video in different formats, at the request of the user, Recording in different files; Generating and storing management information for cooperatively playing the recorded other files; And retrieving and cooperatively playing the recorded other files by referring to the management information.

In addition, a separate audio and video recording and reproducing apparatus of the digital recorder according to the present invention comprises: recording means for recording audio and video in different formats and recording them into different files; Reproducing means for reading out the recorded other files and reproducing the audio and video; And control means for generating and managing management information for cooperatively reproducing the recorded other files, and searching and referring to the management information to cooperatively reproduce the other recorded files. .

Hereinafter, preferred embodiments of an audio and video separation recording and reproducing apparatus and method in a digital recorder according to the present invention will be described in detail with reference to the accompanying drawings.

First, in a digital recorder such as a DVD recorder to which the present invention is applied, the external A / V signal is separated into audio and video and recorded on various recording media. The recording medium includes an optical disk and a hard disk. Alternatively, a memory card may be used, and the separately recorded audio and video are recorded in files of different formats on the same recording medium or different recording media.

In addition, the format of the audio data to be separated and recorded is encoded in CD-DA or MP3, etc., and the format of the video data may be encoded in JPEG or the like. In the separate recording, the JPEG still image is 5 seconds or It may be automatically generated at predetermined time intervals, such as 10 seconds, or at a time point designated by the user.

In addition, the separately recorded MP3 file and the JPEG file may be simultaneously played on a device capable of playing both the MP3 file and the JPEG file, such as a DVD recorder or a DVD player. For example, in the digital recorder, Link information for linking and playing back files and JPEG files is stored and managed in a nonvolatile memory such as EEPROM, and then the link information is searched and referenced to link and play back MP3 files and JPEG files. .

In the case of recording the separately recorded files on the same single recording medium, the MP3 file is recorded from the front in the physical space of the recording medium, and the JPEG file is calculated from the rear by calculating the file size. The recording capacity of is used more efficiently, which will be described in detail below.

1 shows a configuration of a digital recorder to which the present invention is applied. For example, an analog signal processor 10, a video A / D converter 11, a JPEG encoder (for example, a digital recorder such as a DVD recorder) 12), local memory 13, 16, 19, 22, audio A / D converter 14, MPEG audio encoder 15, video D / A converter 16, JPEG decoder 17, audio D The / A converter 18, the MPEG audio decoder 19, the memory 20, the digital signal processor 24, and the microcomputer 25 may be included.

On the other hand, in the microcomputer 25, when an external input A / V signal is separated and recorded in an MP3 file and a JPEG file according to a user's request, as shown in FIG. 1, the optical disc 26 and the memory card. (27) and separate recording on various recording media such as a hard disk 27, or recording on any one recording media.

For example, as shown in FIG. 2, when a user receives an A / V split recording operation (S11) while receiving a television A / V signal input from the outside (S10), the television A The / V signal is separated into an audio and video signal by the analog A / V signal processing section 10, and the separated analog video signal is converted into digital video data by the video A / D conversion section 11.

The digital video data is encoded in the JPEG format by the JPEG encoder 12 and temporarily stored in the local memory 13. The separated analog audio signal is the audio A / D converter 14. After the digital audio data is converted into digital audio data by the MP3 format, it is encoded in the MP3 format by the MPEG audio encoder 15 and temporarily stored in the local memory 15 (S11).

Meanwhile, the JPEG still image temporarily stored in the local memory 13 is read into the digital signal processing unit 24 at a predetermined time interval or at a point of time designated by the user, and signal processed into a JPEG file. MP3 audio recorded on the card 27 and temporarily stored in the local memory 16 is likewise read by the digital signal processing unit 24 and signal-processed as an MP3 file, and then recorded on the memory card 27. As described above, the JPEG file and the MP3 file may be separately recorded and recorded on the optical disk 26 or the hard disk 28 according to the user's selection.

In the microcomputer 25, when the JPEG file and the MP3 file are recorded on the memory card as described above, as the management information for linking and playing back the JPEG file and the MP3 file, as shown in FIG. (Link Information) is generated and stored and managed in a nonvolatile memory 23 such as EEPROM (S14). The link information includes a file name of each recorded file (JPEG File Name & MP3 File Name), recording medium (Media) identification information, recording start time (S_Time), and recording end time (E_Time) information are recorded.

In addition, when the separated and recorded JPEG file and the MP3 file are reproduced as described above (S15), the microcomputer 25 searches and references the link information stored in the YPIROM 23 (S16). For example, when the JPEG file name XXX1.JPG is played back, the MP3 file name ZZZ.MP3 corresponding to the recording start time and the end time recorded in the link information is read out (S17).

In the JPEG decoder 18 and the MPEG audio decoder 21, the JPEG file and the MP3 file are decoded together as still images and audio, respectively, and the video D / A converter 17 and the audio D / A are decoded together. Through the converter 20 and the analog A / V signal processor 10, audio and still images are reproduced and output (S18), and then various corresponding operations requested by the user are performed.

For reference, the microcomputer 25 may generate and manage a play list using a plurality of JPEG files, and then use the play list to continuously connect and reproduce a plurality of still images with the MP3 file. .

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 audio and video separated recording and reproducing apparatus and method in the digital recorder according to the present invention constructed and constructed as described above are, for example, in various types of digital recorders such as DVD recorders, etc. Accordingly, the audio and video are encoded in different formats, recorded as different files, and generated and stored management information for cooperatively playing the recorded other files. Then, the management information is referred to as a search reference. Thus, by separately playing the recorded other files, the separated and recorded files can be treated as audio files that can be played in a portable MP3 (MP3) player or a CD (CD) player. You don't need to record the It is a very useful invention that can not only reduce, but also greatly improve the learning effect by connecting and playing audio and video.

Claims (8)

Recording audio and video in different formats according to a user's request, and recording each of them into different files when recording audio and video; Generating and storing management information for cooperatively playing the recorded other files; And And recording and reproducing the recorded other files by referring to the management information. 3. The method of claim 1, In the first step, the audio and video are separated into an MP3 file and a JPEG file, respectively, and recorded on the same recording medium or recorded on different recording media. How to record and play back. The method of claim 1, In the second step, the audio and video separation recording and reproducing method of the digital recorder, generating link information for cooperatively playing the recorded other files, and storing the link information in a nonvolatile memory included in the device. The method of claim 3, wherein The link information may include at least one of a file name, recording medium identification information, recording start time, and recording end time of each of the recorded files. How to play. Recording means for encoding audio and video in different formats and recording them in different files; Reproducing means for reading out the recorded other files and reproducing the audio and video; And And generating and managing management information for cooperatively reproducing the recorded other files, and searching and referring to the management information, and including control means for cooperatively reproducing the other recorded files. Separate audio and video recording and playback from the recorder. The method of claim 5, The recording means separates the audio and video from the digital recorder, by encoding the audio and video as MP3 files and JPEG files, respectively, on the same recording medium or on different recording media. Recording and playback device. The method of claim 5, The control means generates and manages link information for cooperatively playing the other recorded files, stores and stores the link information in a nonvolatile memory included in the device, and searches and searches the management information for cooperatively playing the recorded other files. Separate audio and video recording and playback device in a digital recorder, characterized in that. The method of claim 7, wherein The link information may include at least one of a file name, recording medium identification information, recording start time, and recording end time of each of the recorded files. Playback device.

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