KR100313854B1 - Optical disc on which the editing and duplication control information is recorded, the information recording control apparatus on the optical disc, the information editing and duplication control method - Google Patents

Abstract

The present invention relates to an optical disc on which editing and duplication control information is recorded, an information recording control apparatus on the optical disc, and an information editing and duplication control method.

The disc includes a coding mode area for specifying at least a data compression method in each of an audio and video title information management area, a program information management area, and a cell information management area of the information file system, and a TV system for specifying a television broadcast method. An optical disc having an attribute area for designating attributes of the title information, program information, and cell information, including a mode area, wherein an audio and video title is assigned to each attribute area of the title information, program information, and cell information management area. An edit control flag including an edit-allow mode for enabling editing and an edit-protection mode for disabling the editing; and an updateable number of copies for audio and video titles edited based on the edit-allowing mode. Characterized in that the replication control information is recorded. All.

According to the present invention, by recording the editing and duplication control information in the information file area on the optical disc, it is possible to prevent illegal copying by the author by the audio and video data newly configured through the editing process.

Description

Optical disc on which the editing and duplication control information is recorded, the information recording control apparatus on the optical disc, the information editing and duplication control method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to optical recording and reproducing, and more particularly, to an optical disc on which editing and duplication control information is recorded, an information recording control apparatus on the optical disc, and a method of controlling and editing the information.

A DVD (Digital Versatile Disc) recorder is a device for recording and reproducing data by irradiating a light beam onto an optical disc. In general, an optical disc is divided into a data area in which audio and video files are recorded, and an information file area serving as reproduction control data in order to enable high-speed search and data attributes during data reproduction.

On the other hand, DVD recorders capable of recording and rewriting may be capable of editing audio and video data through an interface with an internal device or an external device, in which case audio and video data to be originally edited, rather than other devices or media, is recorded. The edited audio and video data can be recorded on the same disc.

The edited audio and video data can be configured through the information file to have separate copy protection or copy control properties irrespective of the properties related to the copying of the data before editing, in which case illegal copying of digital devices or media may be possible. Can be.

Therefore, there is a need for preventing illegal copying by the author by audio and video data newly configured after editing of audio and video data.

An object of the present invention is to provide an optical disc in which editing and duplication control information has been recorded, an information recording control apparatus on the optical disc, and an information editing and duplication control method in order to meet the above needs.

1 is a diagram showing the configuration of an information file system on an optical disc according to the present invention.

2 is a block diagram of an apparatus for controlling the recording of editing and duplication control information on an optical disc according to the present invention.

FIG. 3 is a diagram illustrating an embodiment of video title management using the apparatus shown in FIG. 2.

4A is a flowchart of a method of editing and copying audio and video data when copy control information is NO MORE COPY.

4B is a flowchart of a method of editing and copying audio and video data when copy control information is ONE COPY.

4C is a flowchart of a method of editing and copying audio and video data when copy control information is MANY COPY.

In order to achieve the above object, a coding mode area for designating at least a data compression method and an television broadcasting method are specified in the audio and video title information management area, the program information management area, and the cell information management area of the information file system, respectively. An optical disc having a property area for designating properties of the title information, program information, and cell information, including a TV system mode area for performing audio data in each property area of the title information, program information, and cell information management area. And an edit control flag including an edit permission mode for making the video title editable and an edit prohibition mode for disallowing the editing, and copying of audio and video titles edited based on the edit permission mode. The replication control information that updated the number of times was recorded. There is provided an optical disc, characterized in that.

In order to achieve the above another object, the audio and video title information management area, the program information management area, and the cell information management area of the information file system each have an attribute area for specifying the property of the title, program, and cell information. An apparatus for controlling the recording of predetermined information in each attribute area on an optical disc, comprising: an edit control flag for indicating an edit allow mode and an edit inhibit mode for audio and video titles, and edited based on the edit allow mode; An AV encoder which encodes an information file including duplication control information in which duplication times are updated for audio and video titles; A channel encoder for converting the information file encoded by the AV encoder into a format suitable for recording on an optical disc; And recording the converted information file in each attribute area on the optical disc, controlling whether to edit audio and video data based on the edit control flag, and copying the original after the data is edited. An editing and duplication control information recording control apparatus is provided on an optical disc, comprising a system controller for controlling to update the control information.

In order to achieve the above another object, the editing permission is made so that the audio and video titles can be edited in each attribute area of the audio and video title information management area, the program information management area, and the cell information management area of the information file system. On an optical disc on which an edit control flag including a mode and an edit inhibit mode for disabling said editing, and duplication control information for which the number of times of duplication has been updated for audio and video titles edited on the basis of the edit permission mode are recorded. A method of controlling the editing and duplication of the audio and video data, the method comprising: a first step of checking duplication control information recorded in each attribute area of the title, program and cell information management area; A second step of determining whether an edit control flag recorded in each attribute area is an edit allow mode or an edit inhibit mode; A third step of editing the audio and video data when it is determined in the second step that the editing permission mode is selected; And a fourth step of updating the copy control information checked in the first step. The method of controlling editing and copying of audio and video data recorded on an optical disc is provided.

In the fourth step, when the copy control information checked in the first step is NO MORE COPY, the copy control information of the audio and video data edited in the third step may be updated to NO MORE COPY.

In the fourth step, when the copy control information checked in the first step is MANY COPY, the copy control information of the audio and video data edited in the third step is updated to MANY COPY.

In the fourth step, when the copy control information checked in the first step is ONE COPY, the copy control information of the audio and video data edited in the third step may be updated to NO MORE COPY. .

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

1 is a diagram showing the configuration of an information file system on an optical disc according to the present invention.

The file system 10 is largely comprised of a video title information management area 12, a program information management area 14, a cell information management area 16, and other information management areas 18. The title, program and cell information management areas 12-16 include property areas 120, 140, 160 for specifying the properties of title, program, and cell, and start address areas 130, 150, 170 on which start addresses are recorded.

In addition, copy control information 122, 142, 162, edit control flags 124, 144, 164, video coding modes 126, 146, 166, and TV system modes 128, 148, 168 are recorded in each attribute area 120, 140, 160.

The edit control flag 124 is an edit permission mode for allowing audio and video titles to be edited in the respective property areas 120, 140, and 160 of the title information, program information, and cell information management areas, and the edit for disabling the editing. Include prohibited mode.

The copy control information 122 is information for updating the number of copies of the original copy control information for the edited audio and video titles based on the edit permission mode of the edit control flag 124. For example, if the replication control information is set to ONE COPY, it means that the number of times of replication is one time. If it is MANY COPY, it means that replication can be performed multiple times.

Therefore, when the original copy control information is ONE COPY, when audio and video data are edited according to the edit permission mode, the copy control information is set to NO MORE COPY and updated. On the other hand, if the original copy control information is set to MANY COPY or NO MORE COPY, the copy control information is set to MANY COPY or NO MORE COPY and updated even if audio and video data are edited according to the edit permission mode.

Video Coding Modes 126, 146, 166 A compression scheme of a video signal, such as MPEG 1 or MPEG 2, is specified.

The TV system modes 128, 148, and 168 are designated by the broadcast method, for example, NTSC or PAL.

2 is a block diagram of an apparatus for controlling the recording of editing and duplication control information on an optical disc according to the present invention.

The apparatus shown in FIG. 2 includes a pickup unit 202, an RF amplifier 204, a channel codec 206, an AV codec 208, a servo unit 210, and a system controller 212.

In the recording mode, the AV codec 208 displays an edit control flag for indicating the edit enable mode and the edit inhibit mode of audio and video titles, and the number of times of duplication for the audio and video titles edited based on the edit allow mode. The information file containing the updated copy control information is encoded. In addition, the AV codec 208 compresses audio and video data input from the outside by a predetermined compression scheme such as MPEG and AC3.

The channel codec 206 converts the information file encoded by the AV codec 208 into a format suitable for recording on an optical disc. Further, additional data for ECC (Error Correction Code) processing is added to the data compressed by the AV codec 208, and then modulated by a predetermined modulation scheme and converted into a format suitable for recording on an optical disc.

The RF amplifier 204 amplifies the data output from the channel codec 206 and converts the data into an optical signal. The pickup section 202 incorporates an actuator, and records the optical signal converted by the RF amplifier section 204 on the optical disc. The servo unit 210 receives information necessary for servo control from the channel codec 206 through the RF amplifier 204 and the system controller 212 and performs a stable servo function for the pickup unit 202.

The system controller 212 controls the entire system, controls to record the information file converted by the channel codec 206 in each attribute area 120, 140, 160 on the optical disc, and based on the edit control flag, audio and video data. Control whether or not to edit, and after editing the data, control to update the original copy control information. The system controller 212 controls to record the edit control flag and the copy control information separately for each title.

On the other hand, in the reproduction mode, the operation is performed in the reverse order of the recording mode.

FIG. 3 is a diagram illustrating an embodiment of video title management using the apparatus (display unit not shown) illustrated in FIG. 2.

In Fig. 3, video titles 1 and 3 indicate that the edit control flag is set to the edit permission mode, and is editable. On the other hand, video title 2 indicates that the edit control flag is set to the edit inhibit mode, so that editing is not possible.

4A to 4C are flowcharts of a method for controlling editing and duplication of audio and video data recorded on an optical disc according to the present invention.

4A is a flowchart of a method of editing and copying audio and video data when copy control information is NO MORE COPY. 4A includes steps 402-414.

The replication control information is checked (step 402). The replication control information includes NO MORE COPY, MANY COPY, and ONE COPY.

It is determined whether the replication control information checked in step 402 is NO MORE COPY (no more copying). (404) If NO NO COPY is reached, the flow goes to FIG. 4B.

If NO MORE COPY, the edit control flag is checked (step 406). The edit control flag has an edit enable mode or an edit disable mode.

It is determined whether the edit control flag is in the edit permission mode (step 408).

In the edit permission mode, the A / V data (audio and video data) is edited (step 410).

Update the information file by setting the replication control information of the edited A / V data to NO MORE COPY (step 412). (Step 414) If the replication control information is set to NO MORE COPY, editing of the audio and video data is stopped. Afterwards, the replication control information is updated to NO MORE COPY.

4B is a flowchart of a method of editing and copying audio and video data when copy control information is ONE COPY. 4B includes steps 416-426.

If the replication control information checked in step 404 of FIG. 4A is not NO MORE COPY (no more replication is possible), it is determined whether it is ONE COPY (once replication is possible). If it is not ONE COPY, go to FIG. 4C. .

In the case of ONE COPY, the edit control flag is checked (step 418), and it is determined whether the edit control flag is the edit permission mode (step 420).

In the edit permission mode, the A / V data (audio and video data) is edited (step 422).

Update the information file by setting the replication control information of the edited A / V data to NO MORE COPY (step 424). (Step 426) When the replication control information is set to ONE COPY, the audio and video data is edited. The replication control information is updated to NO MORE COPY since no more replication can be done later.

4C is a flowchart of a method of editing and copying audio and video data when copy control information is MANY COPY. 4C includes steps 428-438.

If the replication control information checked in step 416 of FIG. 4B is not ONE COPY, it is determined whether it is MANY COPY (multiple replication possible) (step 428).

If it is MANY COPY, the edit control flag is checked (step 430) to determine whether the edit control flag is the edit permission mode (step 432).

In the edit permission mode, the A / V data (audio and video data) is edited (step 434).

Update the information file by setting the replication control information of the edited A / V data to MANY COPY (step 436). (Step 438) If the replication control information is set to MANY COPY, even after editing audio and video data The replication control information is updated to MANY COPY because you can make multiple copies.

Meanwhile, embodiments of the present invention can be written as a program that can be executed on a computer. And it can be implemented in a general-purpose digital computer for operating the program from a medium used in the computer. The media includes recording media such as magnetic storage media (e.g. ROM, floppy disk, hard disk, etc.), optical read media (e.g. CD-ROM, DVD, etc.) and carrier waves (e.g., transmitted over the Internet). .

The recording medium includes an edit permission mode and the editing mode for allowing the audio and video titles to be edited in each attribute area of an audio and video title information management area, a program information management area, and a cell information management area of an information file system. Audio and video data on an optical disc on which an edit control flag including an edit inhibit mode for disabling, and duplication control information for which the number of duplications are updated for audio and video titles edited based on the edit permission mode are recorded. CLAIMS 1. A method for controlling copying and copying, comprising: a first step of checking copying control information recorded in each attribute area of said title, program, and cell information management area; A second step of determining whether an edit control flag recorded in each attribute area is an edit allow mode or an edit inhibit mode; A third step of editing the audio and video data when it is determined in the second step that the editing permission mode is selected; And program code for executing the fourth step of updating the duplication control information checked in the first step in a computer.

When the copy control information checked in the first step is NO MORE COPY, the program code for executing the fourth step updates the copy control information of the audio and video data edited in the third step to NO MORE COPY. It is characterized in that the program code for executing the step.

The program code for executing the fourth step may be configured to update the copy control information of the audio and video data edited in the third step to MANY COPY when the copy control information checked in the first step is MANY COPY. Characterized in that the program code to execute the step.

When the copy control information checked in the first step is ONE COPY, the program code for executing the fourth step updates the copy control information of the audio and video data edited in the third step to NO MORE COPY. Characterized in that the step.

In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

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.

According to the present invention, by recording the editing and duplication control information in the information file area on the optical disc, it is possible to prevent illegal duplication by the author by the audio and video data newly formed through the editing process.

Claims (7)

An audio and video title information management area, a program information management area, and a cell information management area of the information file system each include a coding mode area for specifying a data compression method and a TV system mode area for specifying a television broadcast method. An optical disc comprising an attribute area for specifying attributes of the title information, program information, and cell information. An edit control flag including an edit permission mode for allowing audio and video titles to be edited in each property area of the title information, program information, and cell information management area; and an edit inhibit mode for disabling the editing; And duplication control information for which the number of duplications is updated for audio and video titles edited on the basis of the edit permission mode is recorded. Predetermined information in each attribute area on an optical disc having an attribute area for specifying the attribute of the title, program and cell information in each of the audio and video title information management area, program information management area, and cell information management area of the information file system. An apparatus for controlling recording of An information file including an edit control flag for indicating an edit and an edit prohibition mode for audio and video titles, and copy control information for which the number of duplications is updated for audio and video titles edited based on the edit allow mode; An AV encoder which encodes a signal; A channel encoder for converting the information file encoded by the AV encoder into a format suitable for recording on an optical disc; And Control to record the converted information file in each attribute area on the optical disc, control whether to edit audio and video data based on the edit control flag, and control the original copy after editing the data. And a system controller for controlling to update the information. The system controller of claim 2, wherein the system controller is And controlling the recording control flag and the copy control information to be recorded separately for each title. An edit permission mode for allowing the audio and video titles to be edited in each property area of an audio and video title information management area, a program information management area, and a cell information management area of an information file system, and for disabling the editing. Editing and duplication of the audio and video data on an optical disc on which an edit control flag including an edit inhibit mode and duplication control information for which the number of duplications are updated for the audio and video titles edited based on the edit permission mode are recorded. In the control method, A first step of checking duplication control information recorded in each attribute area of the title, program and cell information management area; A second step of determining whether an edit control flag recorded in each attribute area is an edit allow mode or an edit inhibit mode; A third step of editing the audio and video data when it is determined in the second step that the editing permission mode is selected; And And a fourth step of updating the copy control information checked in said first step. The method of claim 4, wherein the fourth step If the replication control information checked in the first step is NO MORE COPY, And copy control information of the audio and video data edited in the third step is updated to NO MORE COPY. The method of claim 4, wherein the fourth step If the replication control information checked in the first step is MANY COPY, And copying control information of the audio and video data edited in the third step is updated to MANY COPY. The method of claim 4, wherein the fourth step If the replication control information checked in the first step is ONE COPY, And copy control information of the audio and video data edited in the third step is updated to NO MORE COPY.