KR101040553B1 - Disc Split Recorder and Method in Disc Recorder - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for data division recording in a disc recorder. For example, in a disc recorder such as a CD (CD) or DVD (DVD) recorder or the like, a digital video camcorder (DV) connected and connected via an IEEE 1394 interface is provided. Record the A / V data received from the camcorder on the optical disc, and detect and refer to the time code of the subcode received through the interface, and the recording date and time information of the video additional data VAUX. If the recording date and time of the A / V data has a discontinuity, the recording date and time are automatically divided into one new title or chapter for recording management by automatically dividing the recorded A / V data into one new title or chapter. Even if the plurality of different video objects are continuously played back from the video tape, the plurality of titles or chapters corresponding to the respective video pictures on the optical disc. Is divided into are recorded automatically, it is extremely useful inventors that user, do not need to divide edit a title or chapter of the optical disc separately.

Disc recorder, digital video camcorder, sub code, time code, video additional data, recording date and time information, split editing

Description

Apparatus and method for recording data separation in disc recorder}             

FIG. 1 illustrates a process of recording A / V data recorded on a general digital video tape on a rewritable DVD-RW.

2 illustrates a state in which a disc recorder and a digital video camcorder to which the present invention is applied are connected and connected through an interface.

3 shows a track structure of a digital video tape to which the present invention is applied;

4 shows a data structure of a digital video tape to which the present invention is applied;

5 shows a data format transmitted from a digital video camcorder to which the present invention is applied.

6 is a flowchart showing an operation of the data division recording method in the disc recorder according to the present invention;

Fig. 7 shows an embodiment of the data division recording process in the disc recorder according to the present invention.

[Description of Drawings]

10: camera unit 11: tape deck

12: DVCR system 13,23: microcomputer

14,24: timer 15,25: interface unit

20: optical disc 21: optical pickup

22: VDR system 100: digital video camcorder

200: disc recorder

According to the present invention, in a disc recorder such as a CD or DVD recorder, A / V data received from a digital video camcorder (DV-Camcoder) connected and connected through an IEEE 1394 interface is recorded on an optical disc. The present invention relates to a data division recording apparatus and method in a disc recorder for automatically dividing a title or chapter and recording management when the recording date and time of A / V data has a discontinuity.

Recently, a disc capable of recording, storing, or reading out MPEG video and audio data onto an optical disc such as a recordable DVD (eg, DVD-R, DVD-RW) for recording high quality video data and high quality audio data. Recorder (Disc Recorder) has been developed and released and commercialized.

In addition, a digital video camcorder (DV-Camcoder) capable of capturing high-definition video and recording and storing on a digital video tape has been developed and commercialized. The disc recorder and the digital video camcorder are connected and connected through an IEEE 1394 interface. Can be.

In addition, the digital video camcorder is reproduced, and the disc recorder is operated to record and reproduce the A / V data read and reproduced from the digital video tape onto a rewritable DVD-RW. The A / V data stream is recorded and stored.

For example, as shown in FIG. 1, the disc recorder receives A / V data read and reproduced from a video tape via an interface with the digital video camcorder, and records the data in a rewritable DVD data area. In the meantime, when the reproducing operation is stopped, the A / V data recorded up to that point is divided into one title (for example, Title # 2).

Then, corresponding title management information (eg, Title # 2_Info), for example, title start / end address, title name, title recording date and time information, etc. are generated and recorded and managed as navigation information in the lead-in area. When the digital video camcorder resumes the playback operation, the A / V data read and reproduced from the video tape is received and recorded on the rewritable DVD.

Subsequently, when the reproduction operation of the digital video camcorder is terminated or the data recording operation is terminated at the request of the user, the disc recorder records the A / V data recorded up to another title (eg : After recording separately by Title # 3, title management information (for example, Title # 3_Info) corresponding thereto is recorded and managed as navigation information.

However, in the digital video camcorder as described above, when the playback operation of the videotape is stopped, the disc recorder divides and records the A / V data recorded on the optical disc into one title (or chapter) until then. When a plurality of images having different recording dates and times are reproduced continuously from a video tape, only one title (or chapter) is recorded on the optical disc, so that the user performs a title (or chapter) editing operation of the optical disc, There is a problem in that a plurality of video images are divided and edited into a plurality of different titles (or chapters).

Accordingly, the present invention was created to solve the above problems, and in a disc recorder such as a CD (CD) or DVD (DVD) recorder or the like, a digital video camcorder (DV-Camcoder) connected and connected through an IEEE 1394 interface. Recording A / V data received from the optical disc, detecting and detecting the time code of the sub code received through the interface and the recording date and time information of the video additional data, and recording the date and time of the A / V data. In the case of having this discontinuity, an apparatus and method for data division recording in a disc recorder for automatically dividing A / V data recorded up to that point into one new title or chapter so that the recording management can be performed. To provide a, that is the purpose.

The data division recording method in the disc recorder according to the present invention for achieving the above object is to convert the data stream of a predetermined format received through an interface into an MPEG data stream and to record on the disc. Detecting date and time information received through the first step; And in the case where the detected date and time information has a discontinuity, dividing the recorded data stream into one new title or chapter to record and manage the recorded data stream.

In addition, the data division recording apparatus in the disc recorder according to the present invention comprises: interface means for connecting and connecting with an external connection device; Recording means for converting the data stream received through the interface means into an MPEG data stream and recording the data stream on a disc; And control means for detecting recording date and time information of the data stream and dividing the recorded data stream into one new title or chapter when the detected date and time information has a discontinuity. Characterized in that comprises a.

Best Mode for Carrying Out the Invention Preferred embodiments of a data division recording apparatus and method in a disc recorder according to the present invention will now be described in detail with reference to the accompanying drawings.

2 illustrates a state in which a disc recorder and a digital video camcorder to which the present invention is applied are connected and connected through an interface. For example, the digital video camcorder 100 may include a camera unit 10 and a tape deck 11. ), A DVCR system 12, a microcomputer 13, and a timer 14, and the disc recorder 200 includes an optical disc 20, an optical pickup 21, a VDR system 22, and a microcomputer 23. ), A timer 24 is included.                     

Meanwhile, the digital video camcorder 100 and the disc recorder 200 are connected and connected through the interface units 15 and 25 to which the IEEE 1394 interface method is applied. In the digital video camcorder 100, the digital video camcorder 100 is illustrated in FIG. 3. As described above, a digital video tape having a track structure of subcode, video, audio, and ITI (Insert & Track info.) Is played.

In addition, the disc recorder 200 receives data reproduced from the digital video tape. When a recording time of an image continuously increases in a subcode track allocated to the digital video tape, A time code sequentially increasing in proportion to the recording is recorded, and video additional data including recording date and time (Rec_date & time) information of a video is recorded in the video track.

That is, the time code recorded in the sub code is recorded at zero at the time when any one video is recorded, and gradually increases afterwards, and when new video is recorded, the time code is recorded again. If the time code becomes zero, the microcomputer 23 of the disc recorder 200 determines that a new video object is being reproduced.

As shown in Fig. 4, the video data, audio data, and subcode data recorded on the digital video tape include sync data, ID, The header H and parity for error correction have a format of digital video data to be additionally recorded.                     

Meanwhile, the data stream of one frame transmitted to the disc recorder 200 through the IEEE 1394 interface is composed of ten digital interface sequences DIFs 0 to DIFs9. Example: DIFs3 consists of a header and a subcode, video additional data VAUX, and 150 video and audio digital interface blocks.

In addition, one of the 150 digital interface blocks DIFb0 to DIFb149 (for example, DIFb2) includes an ID, a header, and 76 bytes of data, and the IEEE 1394 interface. It is transmitted and output at a data rate of 28.77Mbps through, and the video additional data VAUX includes the recording date and time (Rec_date & time) information of the image, so that the microcomputer ( In 23), the recording date and time (Rec_date & time) information is detected and referenced to determine that a new video object is being played back.

In the VDR system 22 of the disc recorder, an optical disc such as a rewritable DVD (RW-RW) is received after converting the data transmitted as described above, converting and signal processing the A / V data stream of the MPEG method. A series of recording operations for recording in the data area of 20 is performed, in which the microcomputer 23 records a time code included in the sub code and a recording included in the video additional data. Detecting and referring to date and time information (Rec_date & time), if the recording date and time of the A / V data reproduced on the videotape have a discontinuity, the new A / V data recorded up to the last time is recorded as one new title. (Title) or chapter (chapter) is automatically divided and recorded, which will be described in detail as follows.

Fig. 6 shows an operation flowchart of a data division recording method in the disc recorder according to the present invention. As described above, the disc recorder 200 is connected to the digital video camcorder 100 through the IEEE 1394 interface. Connected and connected (S10), the digital video camcorder 100 reads and reproduces the data recorded on the digital video tape according to a user's request, and in the disc recorder 200, the digital video camcorder 100 The data stream reproduced and outputted from the terminal is received via the IEEE 1394 interface (S11).

On the other hand, in the microcomputer 23 of the disc recorder 200, when the user requests to start recording the disc (S12), the VDR system 22 is operated to control the digital video format received through the IEEE 1394 interface. The data stream is converted into an MPEG data stream and signal processed, and then recorded in the data area of the optical disc 20 such as a rewritable DVD (RW-RW) (S13).

In addition, the microcomputer 23 performs the data recording operation as described above, and selectively searches for the subcode and the video addition (VAUX) data transmitted from the digital video camcorder 200 (S14). As described above, the time code included in the sub code is recorded as zero at the time when any one video starts recording, and then gradually increases in sequence, and then a new video. When water is recorded, it is reset to zero again. When the time code becomes zero, it is determined that a new video is being played.

Since the video additional data VAUX includes recording date and time (Rec_date & time) information of a video object, the microcomputer 23 detects and records the recording date and time (Rec_date & time) information. If the time information has discontinuity (S15), it is determined that a new video object is being reproduced.

For example, as shown in FIG. 7, when the time code or the recording date and time (Rec_date & time) information is detected as the discontinuous time information, the microcomputer 23 adds new data at that time. In addition to determining that an image is being played, the VDR system 22 is controlled to perform a buffering operation of temporarily storing a data stream received from the digital video camcorder.

Then, the microcomputer 23 divides and records the data recorded up to the last time into one new title (or chapter) (e.g., Title # 3), and then corresponding title management information (e.g., Title # 3_Info), For example, the title start / end address, title name, title recording date and time, and the like are recorded and managed in the lead-in area as navigation information (S16).

The microcomputer 23 then controls the VDR system 22 to perform a series of recording operations for recording the previously buffered data stream onto the optical disc again. Therefore, when the recording operation is terminated (S17), in the microcomputer 23, as shown in FIG. 7, another new title (or chapter) (e.g. Title # 4), the title management information (eg, Title # 4_Info) corresponding thereto is recorded and managed as navigation information in the lead-in area (S18).

Then, since any corresponding operation requested by the user is performed (S19), a plurality of titles having different recording dates and times recorded on the optical video tape on the optical disc, and a plurality of different titles. (Or chapters) can be automatically divided into record management.

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 apparatus and method for data division recording in a disc recorder according to the present invention constructed and constructed as described above are provided in a disc recorder such as a CD (CD) or DVD (DVD) recorder or the like, from a digital video camcorder connected and connected via an IEEE 1394 interface. The received A / V data is recorded on the optical disk, and the A / V data is detected by referring to the time code of the subcode received through the interface and the recording date and time information of the video additional data VAUX. If the recording date and time of the recording has a discontinuity, the A / V data recorded up to that point is automatically divided into one new title or chapter for recording management, whereby a plurality of images having different recording dates and times are recorded. Even if it is continuously played back from the video tape, the optical disc has a plurality of titles or chapters corresponding to the respective images. Is divided recording with the same, it is extremely useful inventors that user, do not need to divide edit a title or chapter of the optical disc separately.

Claims (9)

A step (1) of detecting date and time information received through the interface while converting the data stream of a predetermined format received through the interface into an MPEG data stream and recording the data on a disc; And If the detected date and time information has a discontinuity, the step of dividing and recording the data stream recorded up to the last into one new title or chapter and recording management is performed. Way. The method of claim 1, The first step is to convert the data stream of the digital video format received from the digital video camcorder connected through the IEEE 1394 interface into a MPEG-type data stream and to record it on a disc, while receiving the time of the sub code received through the interface. And a recording date and time information of the video additional data. 3. The method of claim 2, In the second step, if the recording date and time information has a discontinuity by detecting the time code of the sub code and the recording date and time information of the video additional data, the data stream recorded until the last time is recorded as a new one. And dividing it into titles or chapters, and then generating and recording management information corresponding thereto. The method of claim 1, If a recording stop is requested while converting a data stream of a predetermined format received through the interface into an MPEG data stream and recording on a disc, another new title or chapter is recorded. And dividing into and generating and recording management information corresponding thereto. The method of claim 3, The disc recorder is a DVD recorder, and the management information includes recording date and time information of the title or chapter to be divided and recorded. Interface means for connecting and connecting with an external connection device; Recording means for converting the data stream received through the interface means into an MPEG data stream and recording the data stream on a disc; And Control means for detecting recording date and time information of the data stream and dividing the recorded data stream into one new title or chapter when the detected date and time information has a discontinuity; A data division recording apparatus in a disc recorder, comprising: The method of claim 6, And the external connection device is a digital video camcorder, and the interface means is an IEEE 1394 interface. The method of claim 6, If the time code of the sub code received through the interface means and the recording date and time information of the video additional data have discontinuities, the control means divides the recorded data stream into one new title or chapter until the previous time. And then generating and recording management information corresponding thereto. The method of claim 6, When the recording stop is requested while recording the data stream on the disc, the control means divides the recorded data stream into another new title or chapter, and generates corresponding management information. A data division recording apparatus in a disc recorder, characterized in that for recording.

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