KR20040090199A - Method for recording data in optical disc device - Google Patents

Abstract

PURPOSE: A method for recording data in an optical disk device is provided to down-control horizontal resolution of data to be recorded on an optical disk if the data is a source channel. CONSTITUTION: A microcomputer sets an operational mode of an optical disk device to an outer input data recording mode(S10), and confirms a source channel of input data(S11). If the input data is a data stream of a digital video camcorder(S12), the microcomputer variably controls resolution of recorded data encoded in a VDR system. The VDR system down-controls horizontal/vertical resolution of the data(S13), and records/stores the encoded data on a DVD(S15). If a data recording operation is terminated at the request of a user(S16), the microcomputer cancels the currently set outer input data recording mode, and performs a reproduction process(S17).

Description

Method for recording data in optical disc device

The present invention relates to a data recording method in an optical disc device such as a DVD-Recorder for recording and storing external input data received from an external device such as a digital video camcorder on an optical disc such as a rewritable DVD-RW. It is about.

Recently, an optical disc capable of recording and storing high quality video data and high quality audio data for a long time, for example, an optical disc such as a rewritable DVD (RW-RW), is expected to be developed and commercialized. It is expected that optical disc devices such as a DVD recorder capable of recording, storing, or reading / reproducing external input data on the DVD may be developed and commercialized.

On the other hand, in the optical disk device as described above, the data stream recorded and stored in the data area of the rewritable DVD is encoded and stored at a preset horizontal and vertical resolution, for example, 720 x 480, and then recorded and stored. A series of data recording and reproducing operations are performed to reproduce and output through the screen of the device.

In the optical disk apparatus, external input data transmitted from and received from the digital video camcorder or VRC can be rewritten while being connected to an external device such as a digital video camcorder or a VCR. Recording is performed on an optical disc such as a DVD.

Accordingly, a user having the optical disk device as described above can record and store various video and audio data photographed by using a digital video camcorder on the optical disk, and can also play back the A / V signal transmitted or received from the VCD or The tuner signal can be recorded and stored on the optical disc.

However, in the data stream transmitted and received from the digital video camcorder, there may be a relatively large amount of motion components in comparison with V-al reproduction A / V signal or tuner signal. In this case, fixed horizontal and vertical resolution in the optical disk device If the data recording operation is performed while the data is kept as it is, there is a problem that blocking noise or the like occurs in the reproduced video.

Therefore, the present invention was created to solve the above problems, and in an optical disc device such as a DVD recorder, a source channel of the same type as a digital video camcorder in which an external input data requested for recording transmits a data stream having a lot of motion components. In this case, an object of the present invention is to provide a data recording method in an optical disc apparatus for recording by adjusting the resolution of data to be recorded on an optical disc such as a rewritable DVD.

1 illustrates a configuration of an optical disk device to which the present invention is applied.

2 is a flowchart illustrating an operation of a data recording method in the optical disk device according to the present invention;

3 illustrates an embodiment of a playback image from which blocking noise is removed according to the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDR system 13: digital interface

14: mouth / exit 15: microcomputer

16: memory

A data recording method in an optical disc apparatus according to the present invention for achieving the above object comprises the steps of: identifying a source channel of external input data requested for recording; And two steps of variably adjusting the resolution of data to be recorded on the optical disc according to the identified source channel.

Hereinafter, a preferred embodiment of a data recording method in an optical disk apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a configuration of an optical disk apparatus to which the present invention is applied. For example, an optical disk apparatus such as a DVD recorder includes an optical pickup 11, a VDR (Video Disc Recording) system 12, and a digital interface ( 13), the input / output unit 14, the microcomputer 15, and the memory 16 may be included.

In addition, a digital video camcorder (DV Camcoder) may be connected and connected to the digital interface 13, and the data stream transmitted from the digital video camcorder is converted into a data format defined by the IEEE 1394 digital interface standard. Done,

On the other hand, V-I can be connected to the input / output unit 14, the V A reproduction and A / V signal and the tuner signal can be received, the microcomputer 15, the user of the Upon request, operation of the VDR system 12 is performed to reproduce the data stream of the digital video camcorder received through the digital interface 13 or the V-SR received through the input / output unit 14. One of the / V signal and the tuner signal is recorded and stored in the rewritable DVD.

In addition, when the type of source channel requested by the user for recording is an output of a digital video camcorder having many motion components, the microcomputer 15 controls the VDR system to adjust the resolution of data to be recorded on the rewritable DVD. The variable adjustment, which will be described in detail as follows.

Fig. 2 shows an operation flowchart of the data recording method in the optical disk apparatus according to the present invention. For example, a digital video camcorder is connected to the digital interface 13, and the input / output unit ( 14), when the user requests a recording operation of the external input data while the V-CAL is connected and connected, the microcomputer 15 sets the operation mode of the optical disk device to the external input data recording mode. (S10).

In addition, the source channel of the external input data received through the digital interface or the input / output unit is checked (S11). As a result of the checking, the external input data is a data stream of the digital video camcorder received through the digital interface. In step S12, the microcomputer 15 determines that there are many motion components in the data stream currently being input, and variably adjusts the resolution of the recording data encoded by the VDR system 12.

For example, in the VDR system, the horizontal and vertical resolution of data to be recorded on the rewritable DVD is adjusted downward from 720 x 480 to 554 x 480 according to the operation control of the microcomputer (S13). When the type of the source channel is a VAL reproducing A / V signal or tuner signal having few motion components, the horizontal and vertical resolutions of the recording data are maintained at a preset 720 x 480 (S14).

In the VDR system 12, a series of data recording operations are performed to record and store data encoded on the rewritable DVD while the resolution is lowered to 544 x 480 or maintained at 720 x 480 as described above. (S15).

Subsequently, when the microcomputer 15 terminates the data recording operation according to the user's request (S16), the microcomputer 15 releases the currently set external input data recording mode, and then the user wants an operation, for example, a playback operation. Etc. (S17).

Accordingly, even if a data stream of a digital video camcorder having a lot of motion components is recorded on the rewritable DVD, blocking noise is generated on the reproduced video screen as shown in FIG. It becomes possible to suppress that effectively.

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 data recording method in the optical disk device according to the present invention constructed and constructed as described above is of a type such as a digital video camcorder in which an external input data requested for recording is transmitted in an optical disk device such as a DVD recorder. In the case of the source channel, by reducing the horizontal resolution of data to be recorded on the optical disc such as a rewritable DVD, blocking noise and the like can be effectively suppressed on the playback video screen, so that the user can It is a very useful invention to be able to watch.

Claims (4)

Identifying a source channel of the externally requested input data; And And controlling the resolution of data to be recorded on the optical disk in accordance with the identified source channel. The method of claim 1, The data recording method of claim 1, wherein the step (1) confirms whether the source channel of the external input data is a data input channel output from a digital video camcorder. The method of claim 1, In the step 2, when the identified source channel is a data input channel output from a digital video camcorder, the resolution of the data to be recorded on the optical disc is adjusted downward. The method of claim 1, And said step 2 adjusts the horizontal resolution of data to be recorded on said optical disc downward.