KR101006156B1 - Method for play and skip record area of video stream - Google Patents

Abstract

The present invention relates to a section skip playback method of a video stream. For example, in an optical disk device such as a DVD player, a DVD recorder, or the like, skip information on a predetermined recording section arbitrarily selected and designated by a user during a playback operation is performed. Skip Information can be efficiently stored and managed on a memory or an optical disc in the apparatus, and the skip information can be searched and referred to to selectively skip only the predetermined recording section. In the case where an adult video is recorded or a part of a user program recorded in a broadcast program contains sensational or violent video, only a part of the video is automatically inhibited from playing.

Skip information, navigation information, skip flag, DVD recorder, disc ID, skip entry, cell information

Description

{Method for play and skip record area of video stream}             

1 shows a configuration of a general optical disk device,

2 is a flowchart illustrating a method of playing a section skip of a video stream according to the present invention.

3 illustrates an embodiment of skip information managed according to the present invention;

4 illustrates an embodiment in which skip information is recorded and managed in navigation information of an optical disc according to the present invention;

5 to 7 illustrate examples in which skip flags are respectively set and managed in cell information corresponding to a skip section according to another embodiment of the present invention.

[Description of Drawings]

10: optical disc 11: optical pickup

12: VDR system 13: micom

14: menu graphics generating unit 15: memory

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of skipping playback of a video stream. For example, in an optical disc device such as a DVD-Player or a DVD-Recorder, a predetermined recording section that a user selects and designates can be selected. The present invention relates to a method of skipping section intervals of a video stream to selectively skip.

Recently, various optical disc devices such as a DVD player or a DVD recorder have been developed and released and commercialized. For example, as shown in FIG. 1, the DVD recorder includes an optical pickup 11 and a VDR (Video Disc Record). The system 12, the microcomputer 13, the menu graphic generator 14, and the memory 15 may be included.

On the other hand, when the optical disc 10 is inserted and seated in the device, the microcomputer 13 reads the navigation information recorded in the lead-in area of the optical disc, and stores the navigation information in the memory 15. Will perform a series of download operations.

In addition, when a user requests a recording or reproducing operation, the navigation information stored in the memory 15 is referred to, and then the operation is controlled by the VDR system 12 to perform a corresponding data recording or reproducing operation. Done.

In the microcomputer 13, when parental lock information is recorded in the navigation information of the optical disc, the adult title or program recorded on the optical disc 10 is stored. In order to prevent unauthorized viewing by adolescents or children, it is required to input a password set by a guardian in advance.

For example, in the microcomputer 13, when parental lock information corresponding to an adult is recorded in the navigation information of the optical disc, the graphic menu generating unit 14 is operated to guide the user to input a password. The video of the message is output and displayed through an external connection device such as a television.

Then, after checking the password input by the user, if it matches the preset password, the adult title or program will be played back, so that adolescents or children can prevent unauthorized viewing of the adult title or program. do.

However, in the general optical disc device, as described above, the entire title or the entire program is prohibited from being reproduced depending on the validity of the password. Therefore, even if the adult video material is recorded only in a portion of the title or program, There is a problem that the entire program cannot be played back.

In addition, if there is a video of sensational or violent video in some sections of the user-selected and recorded broadcast program, only a part of the sections cannot be inhibited from being played back. There is a problem that must be operated.

Accordingly, the present invention was created to solve the above problems, and for example, in an optical disc device such as a DVD player or a DVD recorder, the user skips a predetermined recording section arbitrarily selected and designated during a playback operation. In order to efficiently store and manage information and to search and skip the skip information, a skip skip reproduction method of a video stream for selectively skipping the predetermined recording section is provided. There is a purpose.

According to the present invention, the section skip playback method of a video stream, according to the present invention, checks skip start recording position information and skip end recording position information according to a user's key input while playing a video stream. Storing in the device; And retrieving the stored skip start recording position information and the skip end recording position information, and skipping a corresponding section.

In addition, according to the present invention, the section skip playback method of a video stream includes navigation information of predetermined recording units corresponding to a skip start recording position and a skip end recording position according to a user's key input while playing a video stream. Searching and setting a skip flag; And retrieving the set skip flag to skip a predetermined recording section between corresponding recording units.

Hereinafter, a preferred embodiment of a method of skipping a section of a video stream according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 shows an operation flowchart of the method of skipping the interval of the video stream according to the present invention. For example, in the microcomputer 13 of the DVD recorder configured as described above with reference to Fig. 1, it is inserted into the apparatus. The navigation information is read from the seated optical disc 10, downloaded to the memory 15, and then the navigation information is searched and referenced to perform a general data reproduction operation requested by the user (S10).

Meanwhile, during the data reproducing operation as described above, the recording position information for the predetermined recording section arbitrarily selected and designated by the user is stored and managed as skip information in the memory 15. For example, when the user sets the skip start position through a key input (S11), as shown in FIG. 3, 'A' recording position information A_Position, which is being played back at that time, is searched to record the first skip start recording. It is stored as a location Skip_S1_Position (S12).                     

In addition, when the user sets the skip end position through a key input (S13), as shown in FIG. 3, 'B' recording position information (B_Position) that is being played back at that time is searched to record the first skip end. In the microcomputer 13, the 'A' recording position information and 'B' recording position information corresponding to the first skip start recording position and the first skip end recording position are stored in the position Skip_E1_Position. As the first skip entry # 1, storage management is performed in association with the disc ID information.

In addition, when the user sets the skip start position again through a key input, as shown in FIG. 3, the microcomputer 13 searches for the 'C' recording position information C_Position, which is being played back at that time. Save as the second skip start recording position (Skip_S2_Position), and when the user sets the skip end position through a key input, the second skip is searched for by 'D' recording position information (D_Position) being played at that time. A series of operations to save to the end recording position (Skip_E2_Position) are performed.

On the other hand, in the microcomputer 13, 'C' recording position information and 'D' recording position information corresponding to the second skip start recording position and the second skip end recording position, the second skip entry (Skip Entry # 2) For example, by storing and managing in association with disc ID information, one disc ID and a plurality of skip entries may be stored and managed in association with each other.

In addition, the disc ID is searched and read from the navigation information of the optical disc. Even if the optical disc, which has been inserted and reproduced in the apparatus, is inserted and played back after being ejected to the outside, the skip information previously set by the user, that is, the disc ID, may be used. The skip information stored in association with can be effectively reused.

In addition, the microcomputer 13 continuously monitors and confirms the recording position currently being played when the playback operation is performed in a state in which the skip playback mode is set according to the user's request (S16). For example, when the current recording position (Current Position) matches the skip start recording position (Skip_S_Position) stored in the memory 15 (S17), for example, it corresponds to the first skip start recording position (Skip_S1_Position). When the 'A' position and the recording position currently being reproduced coincide, the reproduction operation is automatically stopped and the jump operation is performed.

On the other hand, the microcomputer 13 searches for and confirms the 'B' position corresponding to the first skip end recording position Skip_E1_Position stored in association with the first skip start recording position, and then jumps to the 'B' position. The skip operation is performed (S18), after which the regeneration operation is normally performed (S19).

In addition, in the microcomputer 13, as shown in FIG. 3, when the second skip start recording position and the second skip end recording position are stored and managed, a predetermined recording interval between the 'C' position and the 'D' position is determined. Since a series of skip operations are repeatedly performed, it is possible to automatically skip a predetermined recording section selected and specified by the user.

In addition, when the user wants to cancel the skip playback mode, the microcomputer 13 operates the graphic menu generation unit 14 to generate an image of a guide message requesting input of a preset password. After that, the screen is displayed through an external connection device such as a television.                     

In addition, by checking the password input by the user and canceling the skip playback mode only when the password matches a preset valid password, adolescents or children cannot freely cancel the skip playback mode set by the parent. .

On the other hand, the skip information stored and managed in the memory 15 as described above, as shown in Figure 4, in the program chain information (PGC_Information) of the navigation information of the optical disk, such as a recordable optical disk, for example, DVD-RW, In addition, the record can be stored.

Accordingly, even if an optical disc in which skip information is additionally recorded in the program chain information is inserted into another optical disc device, a microcomputer provided in the optical disc device searches for the skip information and performs a series of skip reproducing operations corresponding thereto. You can do the same.

Meanwhile, according to another exemplary embodiment of the present invention, a skip flag indicating skip start and end by searching navigation information of predetermined recording units corresponding to a skip start recording position and a skip end recording position that the user arbitrarily selects and designates, respectively. Flag) is recorded, and when the playback operation is performed while the skip playback mode is set, the skip flag recorded in the navigation information is searched and automatically skips a predetermined recording section between the corresponding recording units.

For example, in the 'DVD Realtime Rewritable Video' standard, as illustrated in FIG. 5, program chain information (PGCI), video object information (VOBI), and video video file are illustrated. (RTRW_MOV.VOB file) has a structure that is linked to each other.

In the program chain information PGCI, a plurality of programs (Program # 1, # 2 ..) are connected like a chain, and each program includes one or more cells. And a time map (TMAP) in video object information (VOBI). The time map is associated with one video object (VOB) included in the moving image video file (RTRW_MOV.VOB file).

That is, as shown in FIG. 5, a video object VOB composed of a plurality of video object units (VOBUs), each of which has one cell and a time map TMAP, as a medium. Linked.

On the other hand, as shown in Fig. 6, the cell information (CI) recorded in the program chain information (PGCI) includes a cell type, a video object information search pointer number (VOBI Search Pointer Number), The number of entry pointer information, the Start PTM of this cell, and the End PTM of this cell of the cell are recorded and recorded. A skip flag (S_FG: Skip Flag) newly defined in the present invention is additionally recorded.

In addition, the skip flag may be recorded, for example, with a recording size of 1 byte, and as shown in FIG. 7, in the case of a skip flag indicating a start of skip, a value corresponding to S_FG = '01' is recorded. In the case of the skip flag indicating the end of the skip, the skip flag may be recorded as a value corresponding to S_FG = '10'.

For example, in the microcomputer 13 of the DVD recorder to which another embodiment according to the present invention is applied, as shown in FIG. 7, during the normal playback operation, as shown in FIG. Is selected as the skip start recording position, the cell information CI #k associated with the video object VOB #k corresponding to the 'E' recording position is retrieved.

In addition, a value corresponding to a skip flag S_FG = '01 'indicating a skip start is recorded in the searched cell information. Then, the user selects and designates a' F 'recording position as a skip end recording position through a key input. In this case, the cell information (CI # k + n) associated with the video object (VOB # k + n)) corresponding to the 'F' recording position is retrieved, and the skip flag S_FG = '10' indicating the end of the skip is retrieved. The corresponding value will be recorded.

On the other hand, a value corresponding to S_FG = '00' is recorded in the remaining cell information except for the cell information (CI #k, # k + n) corresponding to the skip start recording position and the skip end recording position, respectively, or The recording of the skip flag may be omitted. In the microcomputer 13, when the playback operation is performed while the skip playback mode is set, the recording position is continuously monitored and confirmed.

When the current recording position corresponds to the video object VOB #k associated with the cell information CI #k in which the skip flag S_FG = '01' is recorded, the VDR system 12 By controlling the operation, the playback operation is automatically stopped and the jump operation is performed.                     

On the other hand, in the microcomputer 13, a series of skips jumps to the recording position of the video object VOB #k_n associated with the cell information CI # k + n in which the value of the skip flag S_FG = '10' is recorded. The operation is performed, and the playback operation is normally performed again thereafter.

In addition, when the user wants to cancel the skip playback mode, the microcomputer 13 operates the graphic menu generator 14 to generate an image of a guide message requesting input of a preset password. After that, the screen is displayed through an external connection device such as a television.

Then, the password input by the user is checked, and the skip playback mode is canceled only when the password matches the preset valid password, thereby preventing adolescents or children from randomly canceling the skip playback mode set by the parent. .

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.

According to the present invention constructed and constructed as described above, the method for skipping playback of a video stream is, for example, in an optical disc device such as a DVD player or a DVD recorder. Skip information for a predetermined recording section can be efficiently stored and managed on a memory or an optical disk in the apparatus, and the skip information can be searched and referred to to selectively skip only the predetermined recording section. Thus, if only adult sections are recorded in only a section of the title or program, or if there is a sensational or violent video in some sections of the broadcast program recorded by the user, only a section of the video can be automatically prohibited. It is a very useful invention.

Claims (13)

During playback of the video stream, in accordance with a user's key input, checking the skip start recording position information and the skip end recording position information and storing the same in the device; And And searching for the stored skip start recording position information and the skip end recording position information, and skipping a corresponding section. And recording the skip start recording position information and the skip end recording position information as a skip entry in program chain information PGCI among the navigation information of the recording medium on which the video stream is recorded. An interval skip playback method of a video stream, characterized by the above-mentioned. delete delete delete delete delete delete If the skip section setting keys are sequentially input while playing the video stream, a skip flag indicating the start of skip is set in the cell information corresponding to the video object VOB that was playing at the first key input time. Setting a skip flag indicating a skip end in cell information corresponding to the video object VOB currently playing at the second key input time point; And And searching for a skip flag set in the cell information, and skipping a recording period of video objects corresponding to corresponding cell information. 2. delete The method of claim 8, And the skip flag is set to 1 byte or less in the cell information. delete delete The method of claim 8, And the skip flag is set and managed in cell information downloaded into a device or cell information recorded in a recording medium.

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